CN115184342A - On-line analysis method, device, storage medium and equipment for chemical composition of molten iron in a molten iron tank - Google Patents
On-line analysis method, device, storage medium and equipment for chemical composition of molten iron in a molten iron tank Download PDFInfo
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Abstract
本发明公开了一种铁水罐内熔融铁水化学成分的在线分析方法、装置、存储介质和设备,其中,在线分析方法根据不同时刻对应的流入铁水罐中的铁水重量信息以及流入铁水罐前的铁水中的元素i的含量信息,拟合得到铁水罐中的铁水重量随流入时间t变化的曲线函数以及流入铁水罐前中的铁水中的元素i的含量随流入时间t变化的插值或平滑处理函数,然后计算得到铁水排放周期内任意时刻tn时铁水罐中铁水总重量以及铁水排放周期内任意时刻tn时铁水罐中铁水中的元素i的平均含量信息。由此,实现了对整个排放周期内任意时刻的铁水罐中的铁水或者某一时段流入铁水罐中的铁水的重量和化学成分的在线分析。
The invention discloses an on-line analysis method, device, storage medium and equipment for the chemical composition of molten iron in a molten iron tank. According to the content information of element i in the water, the curve function of the weight of the molten iron in the molten iron tank changing with the inflow time t and the interpolation or smoothing function of the content of the element i in the molten iron before flowing into the molten iron tank with the inflow time t are obtained by fitting. , and then calculate the total weight of molten iron in the molten iron tank at any time t n in the molten iron discharge cycle and the average content information of element i in the molten iron in the molten iron tank at any time t n in the molten iron discharge cycle. In this way, the on-line analysis of the weight and chemical composition of the molten iron in the molten iron tank at any time in the entire discharge cycle or the molten iron flowing into the molten iron tank in a certain period of time is realized.
Description
技术领域technical field
本发明属于高温熔体成分检测技术领域,具体涉及一种铁水罐内熔融铁水化学成分的在线分析方法、装置、存储介质和设备。The invention belongs to the technical field of high-temperature melt composition detection, and in particular relates to an on-line analysis method, device, storage medium and equipment for the chemical composition of molten iron in a molten iron tank.
背景技术Background technique
高炉铁水是炼钢工序的主要原料,铁水的化学成分对炼钢前铁水预处理所需熔剂量以及钢铁冶炼质量至关重要。目前,铁水罐内熔融铁水化学成分常采用人工取样制样后的实验室离线分析的方法,离线检测过程耗时较长,检测结果严重滞后,而且由于铁水排放周期内铁水化学成分的差异,导致取样检测存在取样代表性问题,无法及时有效的反馈铁水罐内熔融铁水化学成分信息。当前虽然一些检测方法可实现对铁水成分进行在线检测,但是由于检测设备检测频次的限制,在线检测为非连续检测,部分时刻的铁水成分无法检测,即无法实现整个排放周期或某一时段内的铁水成分的在线分析检测。Blast furnace molten iron is the main raw material in the steelmaking process. The chemical composition of molten iron is very important to the amount of flux required for the pretreatment of molten iron before steelmaking and the quality of iron and steel smelting. At present, the chemical composition of molten iron in the molten iron tank is often analyzed offline in the laboratory after manual sampling. The offline detection process takes a long time, and the detection results are seriously delayed. There is a problem of sampling representativeness in sampling detection, and it is impossible to timely and effectively feed back the chemical composition information of molten iron in the molten iron tank. At present, although some detection methods can realize online detection of molten iron components, due to the limitation of detection frequency of detection equipment, online detection is discontinuous detection, and the molten iron components cannot be detected at some moments, that is, the entire discharge cycle or within a certain period of time cannot be realized. On-line analysis and detection of molten iron composition.
发明内容SUMMARY OF THE INVENTION
本发明旨在至少在一定程度上解决相关技术中的技术问题之一。为此,本发明的一个目的在于提出一种铁水罐内熔融铁水化学成分的在线分析方法。该方法实现了对整个排放周期内任意时刻的铁水罐中的铁水或者某一时段流入铁水罐中的铁水的重量和化学成分的在线分析,且该方法实时快速,从而为钢铁冶炼中铁水罐内熔体铁水的化学成分的在线检测分析提供关键技术支撑。The present invention aims to solve one of the technical problems in the related art at least to a certain extent. Therefore, an object of the present invention is to propose an on-line analysis method for the chemical composition of molten iron in a molten iron tank. The method realizes the on-line analysis of the weight and chemical composition of the molten iron in the molten iron tank at any time in the whole discharge cycle or the molten iron flowing into the molten iron tank in a certain period of time, and the method is real-time and fast, so it can be used in the iron and steel tank for iron and steel smelting. The on-line detection and analysis of the chemical composition of molten iron provides key technical support.
本发明第二目的在于提出一种计算机可读存储介质。The second object of the present invention is to provide a computer-readable storage medium.
本发明第三目的在于提出一种分析设备。The third object of the present invention is to propose an analysis device.
本发明第四目的在于提出一种铁水罐内熔融铁水化学成分的在线分析装置。The fourth object of the present invention is to provide an on-line analysis device for the chemical composition of molten iron in a molten iron tank.
为实现上述目的,本发明实施例第一方面提出了一种铁水罐内熔融铁水化学成分的在线分析方法。根据本发明的实施例,所述方法包括:In order to achieve the above purpose, the first aspect of the embodiments of the present invention proposes an on-line analysis method for the chemical composition of molten iron in a molten iron tank. According to an embodiment of the present invention, the method includes:
(1)在铁水流入铁水罐的过程中,获取不同时刻对应的流入铁水罐中的铁水重量信息以及流入铁水罐前的铁水中的元素i的含量信息 (1) In the process of molten iron flowing into the molten iron tank, obtain the weight information of molten iron flowing into the molten iron tank corresponding to different times and the content information of element i in the molten iron before flowing into the molten iron tank
(2)根据不同时刻对应的流入铁水罐中的铁水重量信息拟合得到所述铁水罐中的铁水重量随流入时间t变化的曲线函数M(t);以及根据不同时刻对应的流入铁水罐前的铁水中的元素i的含量信息拟合得到流入铁水罐前中的铁水中的元素i的含量随流入时间t变化的插值或平滑处理函数Ci(t);(2) According to the corresponding weight information of molten iron flowing into the molten iron tank at different times The curve function M(t) that the weight of molten iron in the molten iron tank changes with the inflow time t is obtained by fitting; and the content information of element i in the molten iron before flowing into the molten iron tank corresponding to different moments Fitting to obtain the interpolation or smoothing function C i (t) of the content of element i in the molten iron before flowing into the molten iron tank with the inflow time t;
(3)根据所述曲线函数M(t),计算获得铁水排放周期内任意时刻tn时铁水罐中铁水总重量和/或任意tm至tn时段内流入铁水罐中铁水总重量以及根据所述曲线函数M(t)和所述插值或平滑处理函数Ci(t),计算得到铁水排放周期内任意时刻tn时铁水罐中铁水中的元素i的平均含量信息和/或任意tm至tn时段内流入铁水罐中铁水中的元素i的平均含量信息。(3) According to the curve function M(t), calculate and obtain the total weight of molten iron in the molten iron tank at any time t n in the molten iron discharge cycle and/or the total weight of molten iron flowing into the molten iron tank during any period from t m to t n And according to the curve function M(t) and the interpolation or smoothing function C i (t), calculate the average content of the element i in the molten iron in the molten iron tank at any time t n in the molten iron discharge cycle Information and/or the average content of element i in the molten iron flowing into the hot metal tank for any period t m to t n information.
根据本发明实施例的铁水罐内熔融铁水化学成分的在线分析方法,该方法根据不同时刻对应的流入铁水罐中的铁水重量信息以及流入铁水罐前的铁水中的元素i的含量信息拟合得到所述铁水罐中的铁水重量随流入时间t变化的曲线函数M(t)以及流入铁水罐前中的铁水中的元素i的含量随流入时间t变化的插值或平滑处理函数Ci(t),然后根据上述曲线函数M(t)以及插值或平滑处理函数Ci(t)可计算得到铁水排放周期内任意时刻tn时铁水罐中铁水总重量和/或任意tm至tn时段内流入铁水罐中铁水总重量以及铁水排放周期内任意时刻tn时铁水罐中铁水中的元素i的平均含量信息和/或任意tm至tn时段内流入铁水罐中铁水中的元素i的平均含量信息。由此,实现了对整个排放周期内任意时刻的铁水罐中的铁水或者某一时段流入铁水罐中的铁水的重量和化学成分的在线分析,且该方法实时快速,从而为钢铁冶炼中铁水罐内熔体铁水的化学成分的在线检测分析提供关键技术支撑。According to the online analysis method of the chemical composition of molten iron in the molten iron tank according to the embodiment of the present invention, the method is based on the weight information of molten iron flowing into the molten iron tank corresponding to different times. and the content information of element i in the molten iron before flowing into the molten iron tank Fitting to obtain the curve function M(t) of the molten iron weight in the molten iron tank changing with the inflow time t and the interpolation or smoothing function C i of the content of the element i in the molten iron before flowing into the molten iron tank with the inflow time t (t), then according to the above curve function M(t) and the interpolation or smoothing function C i (t), the total weight of molten iron in the molten iron tank at any time t n in the molten iron discharge cycle can be calculated and/or the total weight of molten iron flowing into the molten iron tank during any period from t m to t n and the average content of element i in the molten iron in the molten iron tank at any time t n in the molten iron discharge cycle Information and/or the average content of element i in the molten iron flowing into the hot metal tank for any period t m to t n information. As a result, the online analysis of the weight and chemical composition of the molten iron in the molten iron tank at any time in the entire discharge cycle or the molten iron flowing into the molten iron tank in a certain period of time is realized, and the method is real-time and fast, so as to be the hot metal tank in iron and steel smelting. The on-line detection and analysis of the chemical composition of molten iron in the inner melt provides key technical support.
另外,根据本发明上述实施例的铁水罐内熔融铁水化学成分的在线分析方法还可以具有如下附加的技术特征:In addition, the on-line analysis method for the chemical composition of molten iron in the molten iron tank according to the above-mentioned embodiment of the present invention may also have the following additional technical features:
在本发明的一些实施例中,在步骤(1)中,采用在线成分分析仪获取不同时刻对应的流入铁水罐前的铁水中的元素i的含量信息 In some embodiments of the present invention, in step (1), an online component analyzer is used to obtain the content information of element i in the molten iron before flowing into the molten iron tank corresponding to different times
在本发明的一些实施例中,在步骤(1)中,采用轨道衡获取不同时刻对应的流入铁水罐中的铁水重量信息 In some embodiments of the present invention, in step (1), a rail scale is used to obtain the weight information of molten iron flowing into the molten iron tank corresponding to different times
在本发明的一些实施例中,在步骤(1)中,间隔2-6分钟获取不同时刻对应的流入铁水罐中的铁水重量信息以及流入铁水罐前的铁水中的元素i的含量信息 In some embodiments of the present invention, in step (1), the weight information of molten iron flowing into the molten iron tank corresponding to different times is obtained at intervals of 2-6 minutes and the content information of element i in the molten iron before flowing into the molten iron tank
在本发明的一些实施例中,在步骤(1)中,至少获取20个不同时刻对应的流入铁水罐中的铁水重量信息以及流入铁水罐前的铁水中的元素i的含量信息 In some embodiments of the present invention, in step (1), at least 20 information on the weight of molten iron flowing into the molten iron tank corresponding to different times is obtained and the content information of element i in the molten iron before flowing into the molten iron tank
在本发明的一些实施例中,在步骤(1)中,所述元素i为Si、S、Mn、Ti、Cu、P、Sn、As和C中的至少一种。In some embodiments of the present invention, in step (1), the element i is at least one of Si, S, Mn, Ti, Cu, P, Sn, As and C.
在本发明的一些实施例中,在步骤(3)中,所述铁水排放周期内,任意时刻tn时流入铁水罐中铁水总重量的计算公式为:In some embodiments of the present invention, in step (3), in the molten iron discharge cycle, the total weight of molten iron flowing into the molten iron tank at any time t n The calculation formula is:
其中,M(t0)为铁水罐的净重,M(tn)为tn时刻铁水罐的总重量。Wherein, M(t 0 ) is the net weight of the molten iron tank, and M(t n ) is the total weight of the molten iron tank at time t n .
在本发明的一些实施例中,在步骤(3)中,所述铁水排放周期内,任意tm至tn时段内流入铁水罐中铁水总重量的计算公式为:In some embodiments of the present invention, in step (3), in the molten iron discharge cycle, the total weight of molten iron flowing into the molten iron tank in any period from t m to t n The calculation formula is:
其中,M(tn)为tn时刻铁水罐的总重量,M(tm)为tm时刻铁水罐的总重量。Wherein, M(t n ) is the total weight of the molten iron tank at time t n , and M(t m ) is the total weight of the molten iron tank at time t m .
在本发明的一些实施例中,在步骤(3)中,所述铁水排放周期内,任意时刻tn时流入铁水罐中铁水中的元素i的总重量为所述曲线函数M(t)和所述插值或平滑处理函数Ci(t)的乘积的积分面积,计算公式为:In some embodiments of the present invention, in step (3), in the molten iron discharge cycle, the total weight of the element i flowing into the molten iron in the molten iron tank at any time t n is the curve function M(t) and all The integral area of the product of the interpolation or smoothing function C i (t) is calculated as:
所述铁水排放周期内,任意时刻tn时流入铁水罐中铁水中元素i的含量为:In the molten iron discharge cycle, the content of element i in the molten iron flowing into the molten iron tank at any time t n is:
在本发明的一些实施例中,在步骤(3)中,所述铁水排放周期内,任意tm至tn时段内流入铁水罐中铁水中的元素i的总重量为所述曲线函数M(t)和所述插值或平滑处理函数Ci(t)的乘积的积分面积,计算公式为:In some embodiments of the present invention, in step (3), in the molten iron discharge cycle, the total weight of the element i flowing into the molten iron in the molten iron tank in any period from t m to t n is the curve function M(t ) and the integral area of the product of the interpolation or smoothing function C i (t), the calculation formula is:
所述铁水排放周期内任意tm至tn检测时段内流入铁水罐中铁水中元素i的平均含量:The average content of element i in the molten iron flowing into the molten iron tank in any t m to t n detection period in the molten iron discharge cycle:
本发明的再一个方面,本发明提出了一种计算机可读存储介质,根据本发明的实施例,该计算机可读存储介质上存储有铁水罐内熔融铁水化学成分的在线分析程序,该铁水罐内熔融铁水化学成分的在线分析程序被处理器执行时实现根据上述铁水罐内熔融铁水化学成分的在线分析方法。In yet another aspect of the present invention, the present invention provides a computer-readable storage medium. According to an embodiment of the present invention, the computer-readable storage medium stores an online analysis program for the chemical composition of molten iron in a molten iron tank. When the on-line analysis program for the chemical composition of the molten iron in the molten iron is executed by the processor, the online analysis method for the chemical composition of the molten iron in the molten iron tank described above is realized.
本发明的第三个方面,本发明提出了一种分析设备,根据本发明的实施例,该分析设备包括存储器、处理器及存储在存储器上并可在处理器上运行的铁水罐内熔融铁水化学成分的在线分析程序,所述处理器执行所述铁水罐内熔融铁水化学成分的在线分析程序时,实现根据上述铁水罐内熔融铁水化学成分的在线分析方法。In a third aspect of the present invention, the present invention provides an analysis device. According to an embodiment of the present invention, the analysis device includes a memory, a processor, and molten iron in a molten iron tank stored on the memory and operable on the processor. The online analysis program of chemical composition, when the processor executes the online analysis program of the chemical composition of molten iron in the molten iron tank, realizes the online analysis method according to the chemical composition of molten iron in the molten iron tank.
本发明的第四个方面,本发明提出了一种铁水罐内熔融铁水化学成分的在线分析装置,该装置包括:In the fourth aspect of the present invention, the present invention proposes an on-line analysis device for the chemical composition of molten iron in a molten iron tank, the device comprising:
获取模块,用于获取不同时刻对应的流入铁水罐中的铁水重量信息以及流入铁水罐前的铁水中的元素i的含量信息 The acquisition module is used to obtain the weight information of molten iron flowing into the molten iron tank corresponding to different times. and the content information of element i in the molten iron before flowing into the molten iron tank
拟合模块,用于根据不同时刻对应的流入铁水罐中的铁水重量信息拟合得到所述铁水罐中的铁水重量随流入时间t变化的曲线函数M(t);以及根据不同时刻对应的流入铁水罐前的铁水中的元素i的含量信息拟合得到流入铁水罐前中的铁水中的元素i的含量随流入时间t变化的插值或平滑处理函数Ci(t);The fitting module is used for the weight information of molten iron flowing into the molten iron tank corresponding to different times The curve function M(t) that the weight of molten iron in the molten iron tank changes with the inflow time t is obtained by fitting; and the content information of element i in the molten iron before flowing into the molten iron tank corresponding to different moments Fitting to obtain the interpolation or smoothing function C i (t) of the content of element i in the molten iron before flowing into the molten iron tank with the inflow time t;
计算模块,用于根据所述曲线函数M(t),计算获得铁水排放周期内任意时刻tn时铁水罐中铁水总重量和/或任意tm至tn时段内流入铁水罐中铁水总重量以及根据所述曲线函数M(t)和所述插值或平滑处理函数Ci(t),计算得到铁水排放周期内任意时刻tn时铁水罐中铁水中的元素i的平均含量信息和/或任意tm至tn时段内流入铁水罐中铁水中的元素i的平均含量信息。The calculation module is used to calculate and obtain the total weight of molten iron in the molten iron tank at any time t n in the molten iron discharge cycle according to the curve function M(t). and/or the total weight of molten iron flowing into the molten iron tank during any period from t m to t n And according to the curve function M(t) and the interpolation or smoothing function C i (t), calculate the average content of the element i in the molten iron in the molten iron tank at any time t n in the molten iron discharge cycle Information and/or the average content of element i in the molten iron flowing into the hot metal tank for any period t m to t n information.
根据本发明实施例的铁水罐内熔融铁水化学成分的在线分析装置,实现了对整个排放周期内任意时刻的铁水罐中的铁水或者某一时段流入铁水罐中的铁水的重量和化学成分的在线分析,且该方法实时快速,从而为钢铁冶炼中铁水罐内熔体铁水的化学成分的在线检测分析提供关键技术支撑。The online analysis device for the chemical composition of molten iron in the molten iron tank according to the embodiment of the present invention realizes the online analysis of the weight and chemical composition of the molten iron in the molten iron tank at any time in the entire discharge cycle or the molten iron flowing into the molten iron tank in a certain period of time. and the method is real-time and fast, thereby providing key technical support for the on-line detection and analysis of the chemical composition of molten iron in the molten iron tank in iron and steel smelting.
本发明的附加方面和优点将在下面的描述中部分给出,部分将从下面的描述中变得明显,或通过本发明的实践了解到。Additional aspects and advantages of the present invention will be set forth, in part, from the following description, and in part will be apparent from the following description, or may be learned by practice of the invention.
附图说明Description of drawings
本发明的上述和/或附加的方面和优点从结合下面附图对实施例的描述中将变得明显和容易理解,其中:The above and/or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of embodiments taken in conjunction with the accompanying drawings, wherein:
图1为本发明实施例的铁水罐内熔融铁水化学成分的在线分析方法的流程示意图;Fig. 1 is the schematic flow sheet of the online analysis method of the chemical composition of molten iron in the molten iron tank of the embodiment of the present invention;
图2为实施例1中的轨道衡获取的铁水重量随时间变化示意图;Fig. 2 is the schematic diagram of the variation of molten iron weight with time obtained by the track scale in Example 1;
图3为实施例1中的铁水中Ti元素含量随时间变化示意图。3 is a schematic diagram showing the variation of the Ti element content in the molten iron in Example 1 with time.
具体实施方式Detailed ways
下面详细描述本发明的实施例,所述实施例的示例在附图中示出,其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的,旨在用于解释本发明,而不能理解为对本发明的限制。The following describes in detail the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary, and are intended to explain the present invention and should not be construed as limiting the present invention.
本发明的一个方面,本发明提出了一种铁水罐内熔融铁水化学成分的在线分析方法。根据本发明的实施例,参考附图1,所述方法包括:In one aspect of the present invention, the present invention provides an on-line analysis method for the chemical composition of molten iron in a molten iron tank. According to an embodiment of the present invention, with reference to FIG. 1, the method includes:
S100:在铁水流入铁水罐的过程中,获取不同时刻对应的流入铁水罐中的铁水重量信息以及流入铁水罐前的铁水中的元素i的含量信息 S100: During the process of the molten iron flowing into the molten iron tank, obtain the weight information of the molten iron flowing into the molten iron tank corresponding to different times and the content information of element i in the molten iron before flowing into the molten iron tank
具体地,本发明实施例采用在线成分分析仪获取不同时刻对应的流入铁水罐前的铁水中的元素i的含量信息上述含量信息指的是质量百分比信息。Specifically, in the embodiment of the present invention, an online composition analyzer is used to obtain the content information of element i in the molten iron before flowing into the molten iron tank corresponding to different times. The above content information Refers to mass percent information.
在线成分分析仪通过光学系统将高能脉冲激光聚焦于待测高温熔融铁水,产生等离子体,然后通过光谱探测器探测等离子体信号光光谱数据,最后通过对光谱的数据处理,实现对流入铁水罐前的铁水成分的在线检测,可获取铁水中某一设定元素或者某几种设定元素的含量信息。The online composition analyzer focuses the high-energy pulsed laser on the molten iron to be measured at high temperature through the optical system to generate plasma, and then detects the spectral data of the plasma signal light through the spectral detector. The on-line detection of the molten iron composition can obtain the content information of a certain set element or some set elements in the molten iron.
需要说明的是,在线成分分析仪可以每秒三十次的频率对物体表面中含有的设定成分的含量进行检测,但是由于现场生产需要以及分析仪自身高频次检测限制的原因,本发明中设定每间隔2-6分钟对流入铁水罐前的铁水中的某一设定元素或者某几种设定元素的含量进行检测一次,从而获取不同时刻对应的流入铁水罐中的铁水重量信息以及流入铁水罐前的铁水中的元素i的含量信息同样地,本发明中设定每间隔2-6分钟对流入铁水罐中的铁水重量信息进行检测一次,从而获得不同时刻对应的流入铁水罐中的铁水重量信息 It should be noted that the online component analyzer can detect the content of the set component contained in the surface of the object at a frequency of 30 times per second, but due to the needs of on-site production and the limitation of high-frequency detection of the analyzer itself, the present invention It is set to detect the content of a certain set element or certain set elements in the molten iron before flowing into the molten iron tank every 2-6 minutes, so as to obtain the corresponding weight information of the molten iron flowing into the molten iron tank at different times. and the content information of element i in the molten iron before flowing into the molten iron tank Similarly, in the present invention, it is set to detect the weight information of the molten iron flowing into the molten iron tank once every 2-6 minutes, so as to obtain the weight information of the molten iron flowing into the molten iron tank corresponding to different times.
具体地,上述元素i为在线成分分析仪中设定的元素,在线成分分析仪只能对设定的元素的含量进行检测,例如设定的元素i可以为Si、S、Mn、Ti、Cu、P、Sn、As和C中的至少一种。Specifically, the above element i is an element set in the online composition analyzer, and the online composition analyzer can only detect the content of the set element. For example, the set element i can be Si, S, Mn, Ti, Cu At least one of , P, Sn, As and C.
S200:根据不同时刻对应的流入铁水罐中的铁水重量信息拟合得到所述铁水罐中的铁水重量随流入时间t变化的曲线函数M(t);以及根据不同时刻对应的流入铁水罐前的铁水中的元素i的含量信息拟合得到流入铁水罐前中的铁水中的元素i的含量随流入时间t变化的插值或平滑处理函数Ci(t)。S200: According to the corresponding weight information of molten iron flowing into the molten iron tank at different times The curve function M(t) that the weight of molten iron in the molten iron tank changes with the inflow time t is obtained by fitting; and the content information of element i in the molten iron before flowing into the molten iron tank corresponding to different moments The interpolation or smoothing function C i (t) of the content of element i in the molten iron before flowing into the molten iron tank with the inflow time t is obtained by fitting.
如前所述,由于现场生产需要以及分析仪自身高频次检测限制的原因,在线成分分析仪只能每间隔2-6分钟对流入铁水罐前的铁水中的某一设定元素或者某几种设定元素的含量进行检测一次,无法做到对铁水流入铁水罐的过程中的每一个时刻均进行检测,无法实现整个排放周期或某一时段内的铁水成分的在线分析检测。为了克服该技术问题,本发明实施例根据不同时刻对应的流入铁水罐前的铁水中的元素i的含量信息拟合得到流入铁水罐前中的铁水中的元素i的含量随流入时间t变化的插值或平滑处理函数Ci(t),用于后续步骤中计算铁水排放周期内任意时刻tn时铁水罐中铁水中的元素i的平均含量信息和/或任意tm至tn时段内流入铁水罐中铁水中的元素i的平均含量信息。同时,根据不同时刻对应的流入铁水罐中的铁水重量信息拟合得到所述铁水罐中的铁水重量随流入时间t变化的曲线函数M(t),用于后续步骤中计算铁水排放周期内任意时刻tn时铁水罐中铁水总重量和/或任意tm至tn时段内流入铁水罐中铁水总重量 As mentioned above, due to the on-site production needs and the high-frequency detection limitation of the analyzer itself, the online composition analyzer can only measure a certain set element or a certain number of elements in the molten iron flowing into the molten iron tank every 2-6 minutes. It is impossible to detect the content of each set element once, and it is impossible to detect every moment in the process of molten iron flowing into the molten iron tank, and it is impossible to realize the online analysis and detection of the molten iron composition in the entire discharge cycle or within a certain period of time. In order to overcome this technical problem, in the embodiment of the present invention, the content information of element i in the molten iron before flowing into the molten iron tank corresponding to different times The interpolation or smoothing function C i (t) of the content of element i in the molten iron before flowing into the molten iron tank with the inflow time t is obtained by fitting, which is used to calculate the molten iron tank at any time t n in the molten iron discharge cycle in the subsequent steps. Average content of element i in hot metal Information and/or the average content of element i in the molten iron flowing into the hot metal tank for any period t m to t n information. At the same time, according to the corresponding weight information of molten iron flowing into the molten iron tank at different times The curve function M(t) of the molten iron weight in the molten iron tank changing with the inflow time t is obtained by fitting, which is used to calculate the total weight of molten iron in the molten iron tank at any time t n in the molten iron discharge cycle in the subsequent steps. and/or the total weight of molten iron flowing into the molten iron tank during any period from t m to t n
具体地,在步骤S100中,至少获取20个不同时刻对应的流入铁水罐中的铁水重量信息以及流入铁水罐前的铁水中的元素i的含量信息由此,才能确保拟合得到的流入铁水罐前中的铁水中的元素i的含量随流入时间t变化的插值或平滑处理函数Ci(t)以及铁水罐中的铁水重量随流入时间t变化的曲线函数M(t)的准确性。可以理解的是,检测次数越多,拟合获得的插值或平滑处理函数Ci(t)以及曲线函数M(t)的准确性越高。Specifically, in step S100, at least 20 information on the weight of molten iron flowing into the molten iron tank corresponding to different times is obtained and the content information of element i in the molten iron before flowing into the molten iron tank Therefore, it is possible to ensure the interpolation or smoothing function C i (t) of the content of element i in the molten iron before flowing into the molten iron tank with the inflow time t and the change of the weight of the molten iron in the molten iron tank with the inflow time t. The accuracy of the curve function M(t). It can be understood that the more times of detection, the higher the accuracy of the interpolation or smoothing function C i (t) and the curve function M (t) obtained by fitting.
作为一个具体示例,参考附图2,拟合得到的铁水罐中的铁水重量随流入时间t变化的曲线函数M(t)是一个二元一次函数。需要说明的是,铁水罐中的铁水重量随流入时间t变化的曲线函数M(t)的拟合过程属于本领域的常规技术,在此不再赘述。As a specific example, referring to FIG. 2 , the curve function M(t) of the change of the molten iron weight in the molten iron tank with the inflow time t obtained by fitting is a binary linear function. It should be noted that the fitting process of the curve function M(t) in which the weight of the molten iron in the molten iron tank changes with the inflow time t belongs to the conventional technology in the art, and will not be repeated here.
具体地,流入铁水罐前中的铁水中的元素i的含量随流入时间t变化的平滑处理函数Ci(t)的拟合过程为:采用平滑的曲线将相邻时刻点连接起来,便形成了平滑处理函数Ci(t),如附图3所示。Specifically, the fitting process of the smoothing function C i (t) in which the content of element i in the molten iron before flowing into the molten iron tank changes with the inflow time t is as follows: using a smooth curve to connect adjacent time points, it forms The smoothing function C i (t) is obtained, as shown in Figure 3.
具体地,流入铁水罐前中的铁水中的元素i的含量随流入时间t变化的插值处理函数Ci(t)的拟合过程为:采用直线将相邻时刻点连接起来,便形成了插值处理函数Ci(t)。Specifically, the fitting process of the interpolation processing function C i (t) in which the content of element i in the molten iron before flowing into the molten iron tank changes with the inflow time t is as follows: using a straight line to connect adjacent time points, an interpolation is formed. Processing function C i (t).
S300:根据所述曲线函数M(t),计算获得铁水排放周期内任意时刻tn时铁水罐中铁水总重量和/或任意tm至tn时段内流入铁水罐中铁水总重量以及根据所述曲线函数M(t)和所述插值或平滑处理函数Ci(t),计算得到铁水排放周期内任意时刻tn时铁水罐中铁水中的元素i的平均含量信息和/或任意tm至tn时段内流入铁水罐中铁水中的元素i的平均含量信息。S300: According to the curve function M(t), calculate and obtain the total weight of the molten iron in the molten iron tank at any time t n in the molten iron discharge cycle and/or the total weight of molten iron flowing into the molten iron tank during any period from t m to t n And according to the curve function M(t) and the interpolation or smoothing function C i (t), calculate the average content of the element i in the molten iron in the molten iron tank at any time t n in the molten iron discharge cycle Information and/or the average content of element i in the molten iron flowing into the hot metal tank for any period t m to t n information.
具体地,所述铁水排放周期内,任意时刻tn时流入铁水罐中铁水总重量的计算公式为:Specifically, during the molten iron discharge cycle, the total weight of molten iron flowing into the molten iron tank at any time t n The calculation formula is:
其中,M(t0)为铁水罐的净重,M(tn)为tn时刻铁水罐的总重量。Wherein, M(t 0 ) is the net weight of the molten iron tank, and M(t n ) is the total weight of the molten iron tank at time t n .
具体地,所述铁水排放周期内,任意tm至tn时段内流入铁水罐中铁水总重量的计算公式为:Specifically, in the molten iron discharge cycle, the total weight of molten iron flowing into the molten iron tank during any period from t m to t n The calculation formula is:
其中,M(tn)为tn时刻铁水罐的总重量,M(tm)为tm时刻铁水罐的总重量。Wherein, M(t n ) is the total weight of the molten iron tank at time t n , and M(t m ) is the total weight of the molten iron tank at time t m .
具体地,所述铁水排放周期内,任意时刻tn时流入铁水罐中铁水中的元素i的总重量为所述曲线函数M(t)和所述插值或平滑处理函数Ci(t)的乘积的积分面积,计算公式为:Specifically, in the molten iron discharge cycle, the total weight of the element i flowing into the molten iron in the molten iron tank at any time t n is the product of the curve function M(t) and the interpolation or smoothing function C i (t) The integral area of , the calculation formula is:
所述铁水排放周期内,任意时刻tn时流入铁水罐中铁水中元素i的含量为:In the molten iron discharge cycle, the content of element i in the molten iron flowing into the molten iron tank at any time t n is:
需要解释的是,所述平滑处理函数Ci(t)是采用平滑曲线将相邻时刻点连接起来得到的,因此所述平滑处理函数Ci(t)实际上是由多段曲线函数组合而成的,即:It should be explained that the smoothing function C i (t) is obtained by connecting adjacent time points by using a smooth curve, so the smoothing function C i (t) is actually composed of multi-segment curve functions. , that is:
其中,Δt为在线成分分析仪检测时间间隔,根据现场生产过程中铁水成分在线检测的需要,各时间间隔可为相同时间间隔或不同时间间隔。Among them, Δt is the detection time interval of the online composition analyzer, and each time interval can be the same time interval or different time intervals according to the needs of online detection of molten iron composition in the field production process.
同样地,所述插值处理函数Ci(t)是采用直线将相邻时刻点连接起来得到的,因此所述插值处理函数Ci(t)实际上是由多段线性函数组合而成的。Likewise, the interpolation processing function C i (t) is obtained by connecting adjacent time points with a straight line, so the interpolation processing function C i (t) is actually composed of multiple linear functions.
然后,再将各段线性或曲线函数分别与曲线函数M(t)的乘积进行积分,最后将各段积分值相加便得到了任意时刻tn时流入铁水罐中铁水中的元素i的总重量。Then, each segment of the linear or curve function is integrated with the product of the curve function M(t), and finally the integral values of each segment are added to obtain the total weight of the element i flowing into the molten iron in the molten iron tank at any time t n . .
具体地,所述铁水排放周期内,任意tm至tn时段内流入铁水罐中铁水中的元素i的总重量为所述曲线函数M(t)和所述插值或平滑处理函数Ci(t)的乘积的积分面积,计算公式为:Specifically, in the molten iron discharge cycle, the total weight of the element i flowing into the molten iron in the molten iron tank in any period from t m to t n is the curve function M(t) and the interpolation or smoothing function C i (t ), the integral area of the product is calculated as:
所述铁水排放周期内任意tm至tn检测时段内流入铁水罐中铁水中元素i的平均含量:The average content of element i in the molten iron flowing into the molten iron tank in any t m to t n detection period in the molten iron discharge cycle:
同样地,在任意tm至tn时段内流入铁水罐中铁水中的元素i的总重量的计算过程中,同样将插值或平滑处理函数Ci(t)按照检测时刻点分为多段线性或曲线函数,然后再将各段线性或曲线函数分别与曲线函数M(t)的乘积进行积分,最后将各段积分值相加便得到了任意tm至tn时段内流入铁水罐中铁水中的元素i的总重量。Similarly, in the calculation process of the total weight of the element i in the molten iron flowing into the molten iron tank in any period from t m to t n , the interpolation or smoothing processing function C i (t) is also divided into multi-segment linear or curve according to the detection time point. function, and then integrate each segment of the linear or curvilinear function with the product of the curve function M(t), and finally add up the integral values of each segment to obtain the elements flowing into the molten iron in the molten iron tank during any period from t m to t n . The total weight of i.
根据本发明实施例的铁水罐内熔融铁水化学成分的在线分析方法,该方法根据不同时刻对应的流入铁水罐中的铁水重量信息以及流入铁水罐前的铁水中的元素i的含量信息拟合得到所述铁水罐中的铁水重量随流入时间t变化的曲线函数M(t)以及流入铁水罐前中的铁水中的元素i的含量随流入时间t变化的插值或平滑处理函数Ci(t),然后根据上述曲线函数M(t)以及插值或平滑处理函数Ci(t)可计算得到铁水排放周期内任意时刻tn时铁水罐中铁水总重量和/或任意tm至tn时段内流入铁水罐中铁水总重量以及铁水排放周期内任意时刻tn时铁水罐中铁水中的元素i的平均含量信息和/或任意tm至tn时段内流入铁水罐中铁水中的元素i的平均含量信息。由此,实现了对整个排放周期内任意时刻的铁水罐中的铁水或者某一时段流入铁水罐中的铁水的重量和化学成分的在线分析,且该方法实时快速,从而为钢铁冶炼中铁水罐内熔体铁水的化学成分的在线检测分析提供关键技术支撑。According to the online analysis method of the chemical composition of molten iron in the molten iron tank according to the embodiment of the present invention, the method is based on the weight information of molten iron flowing into the molten iron tank corresponding to different times. and the content information of element i in the molten iron before flowing into the molten iron tank Fitting to obtain the curve function M(t) of the molten iron weight in the molten iron tank changing with the inflow time t and the interpolation or smoothing function C i of the content of the element i in the molten iron before flowing into the molten iron tank with the inflow time t (t), then according to the above curve function M(t) and the interpolation or smoothing function C i (t), the total weight of molten iron in the molten iron tank at any time t n in the molten iron discharge cycle can be calculated and/or the total weight of molten iron flowing into the molten iron tank during any period from t m to t n and the average content of element i in the molten iron in the molten iron tank at any time t n in the molten iron discharge cycle Information and/or the average content of element i in the molten iron flowing into the hot metal tank for any period t m to t n information. As a result, the online analysis of the weight and chemical composition of the molten iron in the molten iron tank at any time in the entire discharge cycle or the molten iron flowing into the molten iron tank in a certain period of time is realized, and the method is real-time and fast, so as to be the hot metal tank in iron and steel smelting. The on-line detection and analysis of the chemical composition of molten iron in the inner melt provides key technical support.
本发明的再一个方面,本发明提出了一种计算机可读存储介质,根据本发明的实施例,该计算机可读存储介质上存储有铁水罐内熔融铁水化学成分的在线分析程序,该铁水罐内熔融铁水化学成分的在线分析程序被处理器执行时实现根据上述铁水罐内熔融铁水化学成分的在线分析方法。In yet another aspect of the present invention, the present invention provides a computer-readable storage medium. According to an embodiment of the present invention, the computer-readable storage medium stores an online analysis program for the chemical composition of molten iron in a molten iron tank. When the on-line analysis program for the chemical composition of the molten iron in the molten iron is executed by the processor, the online analysis method for the chemical composition of the molten iron in the molten iron tank described above is realized.
本发明的第三个方面,本发明提出了一种分析设备,根据本发明的实施例,该分析设备包括存储器、处理器及存储在存储器上并可在处理器上运行的铁水罐内熔融铁水化学成分的在线分析程序,所述处理器执行所述铁水罐内熔融铁水化学成分的在线分析程序时,实现根据上述铁水罐内熔融铁水化学成分的在线分析方法。In a third aspect of the present invention, the present invention provides an analysis device. According to an embodiment of the present invention, the analysis device includes a memory, a processor, and molten iron in a molten iron tank stored on the memory and operable on the processor. The online analysis program of chemical composition, when the processor executes the online analysis program of the chemical composition of molten iron in the molten iron tank, realizes the online analysis method according to the chemical composition of molten iron in the molten iron tank.
本发明的第四个方面,本发明提出了一种铁水罐内熔融铁水化学成分的在线分析装置,该装置包括:In the fourth aspect of the present invention, the present invention proposes an on-line analysis device for the chemical composition of molten iron in a molten iron tank, the device comprising:
获取模块,用于获取不同时刻对应的流入铁水罐中的铁水重量信息以及流入铁水罐前的铁水中的元素i的含量信息 The acquisition module is used to obtain the weight information of molten iron flowing into the molten iron tank corresponding to different times. and the content information of element i in the molten iron before flowing into the molten iron tank
拟合模块,用于根据不同时刻对应的流入铁水罐中的铁水重量信息拟合得到所述铁水罐中的铁水重量随流入时间t变化的曲线函数M(t);以及根据不同时刻对应的流入铁水罐前的铁水中的元素i的含量信息拟合得到流入铁水罐前中的铁水中的元素i的含量随流入时间t变化的插值或平滑处理函数Ci(t);The fitting module is used for the weight information of molten iron flowing into the molten iron tank corresponding to different times The curve function M(t) that the weight of molten iron in the molten iron tank changes with the inflow time t is obtained by fitting; and the content information of element i in the molten iron before flowing into the molten iron tank corresponding to different moments Fitting to obtain the interpolation or smoothing function C i (t) of the content of element i in the molten iron before flowing into the molten iron tank with the inflow time t;
计算模块,用于根据所述曲线函数M(t),计算获得铁水排放周期内任意时刻tn时铁水罐中铁水总重量和/或任意tm至tn时段内流入铁水罐中铁水总重量以及根据所述曲线函数M(t)和所述插值或平滑处理函数Ci(t),计算得到铁水排放周期内任意时刻tn时铁水罐中铁水中的元素i的平均含量信息和/或任意tm至tn时段内流入铁水罐中铁水中的元素i的平均含量信息。The calculation module is used to calculate and obtain the total weight of molten iron in the molten iron tank at any time t n in the molten iron discharge cycle according to the curve function M(t). and/or the total weight of molten iron flowing into the molten iron tank during any period from t m to t n And according to the curve function M(t) and the interpolation or smoothing function C i (t), calculate the average content of the element i in the molten iron in the molten iron tank at any time t n in the molten iron discharge cycle Information and/or the average content of element i in the molten iron flowing into the hot metal tank for any period t m to t n information.
根据本发明实施例的铁水罐内熔融铁水化学成分的在线分析装置,实现了对整个排放周期内任意时刻的铁水罐中的铁水或者某一时段流入铁水罐中的铁水的重量和化学成分的在线分析,且该方法实时快速,从而为钢铁冶炼中铁水罐内熔体铁水的化学成分的在线检测分析提供关键技术支撑。The online analysis device for the chemical composition of molten iron in the molten iron tank according to the embodiment of the present invention realizes the online analysis of the weight and chemical composition of the molten iron in the molten iron tank at any time in the entire discharge cycle or the molten iron flowing into the molten iron tank in a certain period of time. and the method is real-time and fast, thereby providing key technical support for the on-line detection and analysis of the chemical composition of molten iron in the molten iron tank in iron and steel smelting.
需要说明的是,本发明实施例的铁水罐内熔融铁水化学成分的在线分析装置的具体实现方式与本发明实施例的铁水罐内熔融铁水化学成分的在线分析方法的具体实现方式类似,具体请参见方法部分的描述,为了减少冗余,此处不做赘述。It should be noted that the specific implementation of the online analysis device for the chemical composition of molten iron in the molten iron tank according to the embodiment of the present invention is similar to the specific implementation of the online analysis method for the chemical composition of molten iron in the molten iron tank according to the embodiment of the present invention. Please refer to the description of the method section. In order to reduce redundancy, details are not repeated here.
需要说明的是,在流程图中表示或在此以其他方式描述的逻辑和/或步骤,例如,可以被认为是用于实现逻辑功能的可执行指令的定序列表,可以具体实现在任何计算机可读介质中,以供指令执行系统、装置或设备(如基于计算机的系统、包括处理器的系统或其他可以从指令执行系统、装置或设备取指令并执行指令的系统)使用,或结合这些指令执行系统、装置或设备而使用。就本说明书而言,“计算机可读介质”可以是任何可以包含、存储、通信、传播或传输程序以供指令执行系统、装置或设备或结合这些指令执行系统、装置或设备而使用的装置。计算机可读介质的更具体的示例(非穷尽性列表)包括以下:具有一个或多个布线的电连接部(电子装置),便携式计算机盘盒(磁装置),随机存取存储器(RAM),只读存储器(ROM),可擦除可编辑只读存储器(EPROM或闪速存储器),光纤装置,以及便携式光盘只读存储器(CDROM)。另外,计算机可读介质甚至可以是可在其上打印所述程序的纸或其他合适的介质,因为可以例如通过对纸或其他介质进行光学扫描,接着进行编辑、解译或必要时以其他合适方式进行处理来以电子方式获得所述程序,然后将其存储在计算机存储器中。It should be noted that the logic and/or steps represented in the flowcharts or otherwise described herein, for example, may be considered as an ordered listing of executable instructions for implementing the logical functions, and may be embodied in any computer readable medium for use by an instruction execution system, apparatus, or device (such as a computer-based system, a system including a processor, or other system that can fetch and execute instructions from an instruction execution system, apparatus, or device), or in combination with these used to execute a system, device or device. For the purposes of this specification, a "computer-readable medium" can be any device that can contain, store, communicate, propagate, or transport the program for use by or in connection with an instruction execution system, apparatus, or apparatus. More specific examples (non-exhaustive list) of computer readable media include the following: electrical connections with one or more wiring (electronic devices), portable computer disk cartridges (magnetic devices), random access memory (RAM), Read Only Memory (ROM), Erasable Editable Read Only Memory (EPROM or Flash Memory), Fiber Optic Devices, and Portable Compact Disc Read Only Memory (CDROM). In addition, the computer readable medium may even be paper or other suitable medium on which the program may be printed, as the paper or other medium may be optically scanned, for example, followed by editing, interpretation, or other suitable medium as necessary process to obtain the program electronically and then store it in computer memory.
应当理解,本发明的各部分可以用硬件、软件、固件或它们的组合来实现。在上述实施方式中,多个步骤或方法可以用存储在存储器中且由合适的指令执行系统执行的软件或固件来实现。例如,如果用硬件来实现,和在另一实施方式中一样,可用本领域公知的下列技术中的任一项或他们的组合来实现:具有用于对数据信号实现逻辑功能的逻辑门电路的离散逻辑电路,具有合适的组合逻辑门电路的专用集成电路,可编程门阵列(PGA),现场可编程门阵列(FPGA)等。It should be understood that various parts of the present invention may be implemented in hardware, software, firmware or a combination thereof. In the above-described embodiments, various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, it can be implemented by any one or a combination of the following techniques known in the art: Discrete logic circuits, application specific integrated circuits with suitable combinational logic gates, Programmable Gate Arrays (PGA), Field Programmable Gate Arrays (FPGA), etc.
下面详细描述本发明的实施例,需要说明的是下面描述的实施例是示例性的,仅用于解释本发明,而不能理解为对本发明的限制。The embodiments of the present invention will be described in detail below. It should be noted that the embodiments described below are exemplary and are only used to explain the present invention, but should not be construed as limiting the present invention.
实施例1Example 1
本实施例提供一种铁水罐内熔融铁水化学成分的在线分析方法,包括如下步骤:The present embodiment provides an on-line analysis method for the chemical composition of molten iron in a molten iron tank, comprising the following steps:
1)在铁水流入铁水罐的过程中,采用在线成分分析仪获取不同时刻对应的流入铁水罐前的铁水中的元素Ti的含量信息检测时间间隔为3分钟,整个排放周期约为120分钟,如表1所示。1) In the process of molten iron flowing into the molten iron tank, use an online composition analyzer to obtain the content information of element Ti in the molten iron before flowing into the molten iron tank corresponding to different times. The detection time interval is 3 minutes, and the entire discharge cycle is about 120 minutes, as shown in Table 1.
在铁水流入铁水罐的过程中,采用轨道衡获取不同时刻对应的流入铁水罐中的铁水重量信息与含量信息对应的铁水重量信息如表2所示。In the process of the molten iron flowing into the molten iron tank, the track scale is used to obtain the weight information of the molten iron flowing into the molten iron tank corresponding to different times. with content information Corresponding molten iron weight information As shown in table 2.
表1Table 1
表1续Table 1 continued
表1续Table 1 continued
表1续Table 1 continued
表2Table 2
表2续Table 2 continued
表2续Table 2 continued
表2续Table 2 continued
2)根据表2中的不同时刻对应的流入铁水罐中的铁水重量信息拟合得到铁水重量随时间t变化的曲线拟合函数,如附图2所示:2) According to the weight information of molten iron flowing into the molten iron tank corresponding to different moments in Table 2 Fitting to get the weight of molten iron The curve fitting function as a function of time t is shown in Figure 2:
M(t)=0.00136t2+0.5197t+3.969M(t)=0.00136t 2 +0.5197t+3.969
则整个铁水排放周期,即tn=120分钟时铁水罐中铁水总重量:Then the whole molten iron discharge cycle, that is, the total weight of molten iron in the molten iron tank when t n = 120 minutes:
即,该整个排放周期所排放的铁水总重量为81.95吨。That is, the total weight of molten iron discharged in this entire discharge cycle is 81.95 tons.
3)根据表1中的不同时刻对应的流入铁水罐前的铁水中的元素Ti的含量信息采用分段三次Hermite插值拟合得到铁水中元素Ti的含量随时间t变化的曲线拟合函数Ci(t),如附图3所示:3) Content information of element Ti in the molten iron before flowing into the molten iron tank corresponding to different times in Table 1 The curve fitting function C i (t) of the content of element Ti in molten iron changing with time t is obtained by piecewise cubic Hermite interpolation fitting, as shown in Figure 3:
其中, in,
......
即,该整个排放周期内铁水罐中铁水中元素Ti的总重量1.3690吨;That is, the total weight of element Ti in the molten iron in the molten iron tank during the entire discharge period is 1.3690 tons;
整个铁水排放周期内时刻tn=120分钟时铁水罐中铁水中元素Ti的总含量为:The total content of element Ti in the molten iron in the molten iron tank at time t n = 120 minutes in the entire molten iron discharge cycle is:
实施例2Example 2
本实施例提供一种任意tm至tn时段内流入铁水罐中铁水的化学成分的在线分析方法,包括如下步骤:The present embodiment provides an on-line analysis method for the chemical composition of molten iron flowing into the molten iron tank in any period from t m to t n , comprising the following steps:
1)整个铁水排放周期内,轨道衡获取的铁水重量随时间t变化如图2所示,通过数据拟合得到铁水重量随时间t变化的曲线拟合函数:1) During the whole molten iron discharge cycle, the weight of molten iron obtained by the track scale The change with time t is shown in Figure 2, and the weight of molten iron is obtained by data fitting Curve fitting function as a function of time t:
M(t)=0.00136t2+0.5197t+3.969M(t)=0.00136t 2 +0.5197t+3.969
则铁水排放周期内第15到30分钟时段内,即tn=30分钟,tm=15分钟对应的时段内铁水罐中铁水总重量:Then in the 15th to 30th minute period of the molten iron discharge cycle, that is, the total weight of molten iron in the molten iron tank in the period corresponding to t n = 30 minutes and t m = 15 minutes:
即,该排放周期内第15到30分钟时段流入铁水罐内的铁水总重量为15.02吨。That is, the total weight of molten iron flowing into the molten iron tank during the 15th to 30th minute period of the discharge cycle is 15.02 tons.
2)整个铁水排放周期内,铁水中Ti元素含量随时间t变化如图3所示,则铁水排放周期内第15到30分钟时段内,即tm=15分钟,tn=30分钟对应的时段内流入铁水罐中铁水中元素Ti的的总重量为:2) In the whole molten iron discharge cycle, the content of Ti element in the molten iron changes with time t as shown in Figure 3, then in the 15th to 30th minute period of the molten iron discharge cycle, that is, t m = 15 minutes, t n = 30 minutes corresponding to The total weight of element Ti in the molten iron flowing into the molten iron tank during the period is:
铁水排放周期内第15到30分钟时段内,即tm=15分钟,tn=30分钟对应的时段内流入铁水罐中铁水中元素Ti的总含量为:The total content of element Ti in the molten iron flowing into the molten iron tank in the period corresponding to t m = 15 minutes and t n = 30 minutes in the period from 15 to 30 minutes in the molten iron discharge cycle is:
在本说明书的描述中,参考术语“一个实施例”、“一些实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本发明的至少一个实施例或示例中。在本说明书中,对上述术语的示意性表述不必须针对的是相同的实施例或示例。而且,描述的具体特征、结构、材料或者特点可以在任一个或多个实施例或示例中以合适的方式结合。此外,在不相互矛盾的情况下,本领域的技术人员可以将本说明书中描述的不同实施例或示例以及不同实施例或示例的特征进行结合和组合。In the description of this specification, description with reference to the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples", etc., mean specific features described in connection with the embodiment or example , structure, material or feature is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, those skilled in the art may combine and combine the different embodiments or examples described in this specification, as well as the features of the different embodiments or examples, without conflicting each other.
尽管上面已经示出和描述了本发明的实施例,可以理解的是,上述实施例是示例性的,不能理解为对本发明的限制,本领域的普通技术人员在本发明的范围内可以对上述实施例进行变化、修改、替换和变型。Although the embodiments of the present invention have been shown and described above, it should be understood that the above-mentioned embodiments are exemplary and should not be construed as limiting the present invention. Embodiments are subject to variations, modifications, substitutions and variations.
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