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WO2013013525A1 - Dispositif et procédé pour démonter un tube agd de four de réduction - Google Patents

Dispositif et procédé pour démonter un tube agd de four de réduction Download PDF

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Publication number
WO2013013525A1
WO2013013525A1 PCT/CN2012/074880 CN2012074880W WO2013013525A1 WO 2013013525 A1 WO2013013525 A1 WO 2013013525A1 CN 2012074880 W CN2012074880 W CN 2012074880W WO 2013013525 A1 WO2013013525 A1 WO 2013013525A1
Authority
WO
WIPO (PCT)
Prior art keywords
agd
pipe
bracket
tube
reduction furnace
Prior art date
Application number
PCT/CN2012/074880
Other languages
English (en)
Chinese (zh)
Inventor
张东华
刘洪亮
陈文进
樊少岩
赵增富
张磊
杨涛
姚剑
Original Assignee
上海宝冶集团有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 上海宝冶集团有限公司 filed Critical 上海宝冶集团有限公司
Publication of WO2013013525A1 publication Critical patent/WO2013013525A1/fr
Priority to ZA2013/08699A priority Critical patent/ZA201308699B/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/02—Making spongy iron or liquid steel, by direct processes in shaft furnaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
    • B23P19/02—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same
    • B23P19/022—Extracting or inserting relatively long parts
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

Definitions

  • the present invention relates to maintenance of a reduction furnace.
  • the present invention relates to a maintenance apparatus for a reduction furnace AGD pipeline; on the other hand, the present invention also designs a method for maintenance of a reduction furnace AGD pipeline.
  • AGD pipe an abbreviation for Areal Gas Distribution, ie gas area distribution.
  • the AGD pipeline (two pieces per furnace) has a total length of more than ten meters, a net weight of several tens of tons, and a maximum outer diameter of more than 1500mm.
  • the AGD pipe Since the AGD pipe needs to be installed in the middle of the C0REX furnace, it should be installed on the furnace frame +54. 8m platform. Through the reserved flange holes on both sides of the C0REX furnace, the whole furnace body should be penetrated. After the traversing is completed, the AGD pipe should be lifted up by lOOmm, the "long-distance bearing block" should be inserted into the bearing position, and then the AGD pipe should be dropped until it reaches the exact position and stays in the predetermined bearing. If you use the traditional installation method, the construction work is extremely difficult and has the following drawbacks:
  • the installation position of the AGD pipeline is in the middle of the C0REX furnace. During the pipe-passing process, it must be operated in the furnace. A large number of lifting and protection measures must be set up inside the furnace body, and there are major construction safety hazards.
  • AGD pipeline installation operations need to be carried out synchronously inside and outside the furnace. It is difficult to coordinate construction and unified command. AGD pipelines are easily damaged during installation.
  • the present invention is directed to solving the above drawbacks, and provides a reduction furnace AGD pipe disassembly apparatus and a disassembly method.
  • the device of the invention has sufficient strength and rigidity to make the disassembly and assembly process effectively and quickly outside the furnace body, avoiding and reducing a large number of lifting, driving, protection and construction measures, and satisfying the disassembly and repair of the normal production of the AGD pipe. Convenient functional requirements.
  • a reduction furnace AGD pipe dismounting device comprises a steel platform disposed on both sides of an AGD pipe installation position of the reduction furnace, which comprises: disposed on the steel platform:
  • a pipe slip device disposed adjacent to one side of the reduction furnace and comprising a frame type bracket body, the bracket body is provided with a moving jacking device, a fixed jacking device, and a front dismounting bracket and a rear Disassemble the bracket;
  • An oscillating telescopic arm is disposed on the other side of the reduction furnace, and the oscillating telescopic arm body faces the mounting hole of the reduction furnace AGD pipe.
  • the reduction furnace AGD pipe dismounting device the frame type bracket body comprises a near furnace section, a connecting section and a far furnace end, the near furnace end section is connected by a bolt flange connection section, and the far furnace section is hinged by the pin shaft in the connecting section
  • the upper side of the frame bracket body is mounted with two parallel roller-type heavy-duty linear guides that extend longitudinally through the entire bracket.
  • the reduction furnace AGD pipe dismounting device is mounted on the frame type bracket body and comprises a support base, and each of the four corners is provided with a jacking cylinder, and the top of the jacking cylinder body is connected to the side A web with a roller moves along a linear guide on the frame bracket body.
  • the reduction furnace AGD pipe dismounting device is mounted on the frame bracket body and includes a support base, and each of the four corners is provided with a jacking cylinder fixed on the frame bracket body .
  • the reduction furnace AGD pipe dismounting device the base of the front disassembly bracket spans two rails on the frame bracket body through six linear guide sliders, and includes a fixed base
  • the pipe support arm supported by the hydraulic cylinder on the seat.
  • the reduction furnace AGD pipe dismounting device further comprises a rear disassembly bracket used by the ADG pipe in position, the upper surface of the rear disassembly bracket is a flange structure, and the tail has a circular arc-shaped guide plate, the guide plate A roller is provided under the rolling connection with the track.
  • the reduction furnace AGD pipe dismounting device is a sleeve type box body comprising a fixed section and a moving section, wherein a fixed section is hingedly fixed on the steel platform, and the end of the moving section is oscillated
  • the cylinder is hinged to the AGD pipe, and the moving section and the built-in type are double-acting multi-stage telescopic cylinders in the movable section of the fixed end.
  • Step 1 Installation steps of the AGD pipe disassembly device: Install the disassembly device in the first AGD pipe installation position according to the mechanical drawings, align and level; install electrical equipment according to electrical drawings; install hydraulic equipment according to hydraulic drawings and Piping; Step 2: Rotate the frame bracket at the far furnace end by 90 degrees to prepare to lift the AGD tube.
  • Step 3 Install the rear disassembly bracket device to the front end of the AGD tube, completely lift the AGD tube above the rail, and frame the far furnace end. Rotate the bracket back to the original position and connect; lay the AGD tube flat on the rail; install the front disassembly bracket device to the tail of the AGD tube;
  • Step 4 the fixed jacking device raises and supports the front end of the AGD tube, removes the rear disassembly bracket device, replaces the intermediate flange, and the hydraulic telescopic arm protrudes, and connects the telescopic arm trunnion and the intermediate flange trunnion;
  • Step 5 according to the program hydraulic telescopic arm pulls the AGD tube, the pull is divided into 9 times, each time, each time the fixed lifting device supports the AGD tube, the moving jacking device is lowered, manually retracted, and then the moving jacking device Supporting the AGD tube, the fixed jacking device is lowered, which facilitates the lower or secondary pulling. Before the 8th pulling, the fixed jacking device is removed, and before the 9th pulling, the moving jacking device is removed;
  • Step 6 The front demolition bracket device hydraulic cylinder and the telescopic arm adjustment hydraulic cylinder are raised at the same time, the AGD tube is raised, placed in the AGD tube bearing seat, the front disassembly bracket device hydraulic cylinder and the telescopic arm adjustment hydraulic cylinder are simultaneously lowered, Place the AGD tube on the bearing housing, remove the connection between the front disassembly bracket device and the AGD tube, remove the connection between the intermediate flange and the telescopic arm and the AGD tube, and complete the installation of an AGD tube; Step 7, the hydraulic telescopic arm, front Remove the bracket device, the moving jacking device, the fixed jacking device, etc. from position 1, and install it to the second AGD pipe installation position, and then install another AGD pipe according to steps 2 to 6 above.
  • the disassembly device of the invention is convenient to operate, detachable, reusable, practical, safe and reliable.
  • the telescopic arm can actively drive the AGD tube into and out, without additional drive control and manual interference.
  • the pressure circuit and pressure gauge are provided in each circuit of the hydraulic system, and the pressure of the system can be detected and monitored at any time.
  • Each working cylinder has a built-in burst.
  • the valve is equipped with a zero-leakage safety overload protection valve. With the absolute encoder as the stepping quantity, the relevant pressure and position data are stored in the PLC by programming, which can be conveniently observed and operated on the touch screen at any time.
  • the method solves the disassembly and assembly problem of the AGD pipeline of the C0REX furnace, and can safely, smoothly, reliably, accurately and efficiently perform the assembly and disassembly work of the AGD tube.
  • the disassembly and assembly method of the invention satisfies the construction requirements of the whole process of disassembly and assembly of the AGD tube in the furnace, realizes the safe, stable, reliable, accurate and efficient construction target of the AGD tube, and can realize the AGD in the online disassembly and assembly shaft furnace. pipeline.
  • the invention shortens the disassembly and assembly time by more than the conventional method, and greatly reduces the construction measures and reduces the construction safety risk.
  • Figure 1 is a schematic view of the present invention
  • Figure 3 is a schematic view of the rear disassembly bracket device
  • Figure 4 is a schematic view of the front disassembly bracket device
  • Figure 5 is a schematic view of a moving, fixed jacking device
  • Figure 6 is a schematic view of the swinging telescopic boom and the base.
  • a reduction furnace AGD pipe disassembly device comprises a steel platform disposed on both sides of an AGD pipe installation position of the reduction furnace, which comprises: disposed on the steel platform:
  • the disassembly and disassembly device is disposed close to the side of the reduction furnace and comprises a frame type bracket body 2, wherein the bracket body 2 is provided with a moving jacking device 4, a fixed jacking device 3, and a front dismounting bracket.
  • the telescopic arm 5 is disposed on the other side of the reduction furnace, and the oscillating telescopic arm body faces the mounting hole of the reduction furnace AGD pipe.
  • the disassembly and disassembly device is composed of a frame type bracket body 2, a moving jacking device 4, a fixed jacking device 3, a front dismounting bracket device 1, a rear dismounting bracket device (not shown in Fig. 1), and the like.
  • the frame-type bracket body 2 (see Fig. 2) is divided into three sections, which are made of ordinary carbon steel and steel. The two ends of the furnace end are connected by bolt flanges, and the far end of the furnace is hingedly connected to the second section. When the AGD tube needs to enter and exit from the tapping field, the far end of the furnace can be rotated around the side pin to allow Out of the AGD tube outlet field to the nozzle channel.
  • the upper surface of the bracket body 2 is a flange structure, and the tail portion has a circular arc-shaped guide plate 6.
  • the rear-mounted detaching bracket device 7 (see Fig. 3) is used to guide the vertically hoisted AGD tube along the arc. The slippage falls to the horizontal position, and the AGD tube is placed on the stent body 2 in the longitudinal direction.
  • two parallel roller-type heavy-duty linear guides longitudinally penetrating the entire bracket are mounted on the inner side of the upper body of the bracket body 2, and the front dismounting bracket device 1 (see Fig. 4) is slid through six linear guide rails.
  • the block 13 spans the two guide rails, and the built-in hydraulic cylinder 11 supports one end of the AGD tube, and cooperates with the jacking device 12 to realize the horizontal movement of the AGD tube into and out of the shaft furnace along the linear guide rail under the traction of the disassembly and disassembly arm.
  • a set of moving jacking device 4 and a set of fixed jacking device 3 are provided, so that the two sets of jacking devices are alternately placed in a suitable position on the skirt legs of the AGD tube.
  • the moving jacking device 4 supports the longitudinal horizontal movement on the flange of the middle portion of the bracket body 2 through the four rollers 41 at the bottom, and the hand can be pushed when no-load;
  • the fixed jacking device 3 is very similar to the moving jacking device 4, only The difference is that it does not need to be moved and can be directly fixed on the bracket body 2. Considering the factors of design, manufacture, installation, cost, etc., we have made two sets of the same jacking device (see Figure 5).
  • the two sets of jacking devices are divided into two layers, the lower layer is the main support body with rollers 41, and four synchronous jacking cylinders 42 are built in; the upper layer is a porous (weight-reducing) light steel support 43, which can be disassembled by manpower. Handling. When the upper layer of the moving jacking device and the fixed jacking device are removed, both the front dismounting bracket device and the rear dismounting bracket device can pass over the moving top bracket.
  • the so-called oscillating telescopic boom 5 refers to a telescopic boom ⁇ sleeve type box body, a fixed hinge 51 is used for the middle part of the non-moving section, and a swinging cylinder hinge 52 is used for the forward end portion.
  • the overhanging head is hinged 53, and the built-in double-acting multi-stage telescopic cylinder drives the "stretching" and “retracting" of the telescopic arm, and the swing is controlled by the swinging hydraulic cylinder.
  • This structure is very similar to the boom of a crane.
  • a reduction furnace pipe disassembly method using the disassembly device which comprises:
  • Step 1 Installation steps of the AGD pipe disassembly device: Install the disassembly device in the first AGD pipe installation position according to the mechanical drawings, align and level; install electrical equipment according to electrical drawings; install hydraulic equipment according to hydraulic drawings and Piping;
  • Step 2 Rotate the frame bracket at the far furnace end by 90 degrees to prepare to lift the AGD tube.
  • Step 3 Install the rear disassembly bracket device to the front end of the AGD tube, completely lift the AGD tube above the rail, and frame the far furnace end. Rotate the bracket back to the original position and connect; lay the AGD tube flat on the rail; install the front disassembly bracket device to the tail of the AGD tube;
  • Step 4 the fixed jacking device is raised to support the front end of the AGD tube, the rear disassembly bracket device is removed, the intermediate flange is replaced, the hydraulic telescopic arm is extended, and the telescopic arm trunnion and the intermediate flange trunnion are coupled;
  • Step 5 according to the program hydraulic telescopic arm pulls the AGD tube, the pull is divided into 9 times, each time, each time the fixed lifting device supports the AGD tube, the moving jacking device is lowered, manually retracted, and then the moving jacking device Supporting the AGD tube, the fixed jacking device is lowered, which facilitates the lower or secondary pulling. Before the 8th pulling, the fixed jacking device is removed, and before the 9th pulling, the moving jacking device is removed;
  • Step 6 The front demolition bracket device hydraulic cylinder and the telescopic arm adjustment hydraulic cylinder are raised at the same time, the AGD tube is raised, placed in the AGD tube bearing seat, the front disassembly bracket device hydraulic cylinder and the telescopic arm adjustment hydraulic cylinder are simultaneously lowered, Place the AGD tube on the bearing housing, remove the connection between the front disassembly bracket device and the AGD tube, remove the connection between the intermediate flange and the telescopic arm and the AGD tube, and complete the installation of an AGD tube; Step 7, the hydraulic telescopic arm, front Remove the bracket device, the moving jacking device, the fixed jacking device, etc. from position 1, and install it to the second AGD pipe installation position, and then install another AGD pipe according to steps 2 to 6 above.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
  • Supports For Pipes And Cables (AREA)
  • Tunnel Furnaces (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)

Abstract

L'invention porte sur un dispositif et un procédé pour démonter un tube AGD d'un four de réduction. Le dispositif de démontage comprend : des plateformes en acier disposées sur les deux côtés d'un emplacement de montage de tube AGD d'un four de réduction ; un dispositif de coulissement de tube disposé sur la plateforme en acier à proximité d'un côté du four de réduction et comprenant un corps de ferrure du type cadre (2), un dispositif d'élévation mobile (4), un dispositif d'élévation fixe (3), une ferrure de démontage avant (1) et une ferrure de démontage arrière qui sont disposées sur le corps de ferrure ; et un bras télescopique pivotant (5) disposé sur la plateforme en acier sur l'autre côté du four de réduction et qui fait face à un trou de montage d'un tube AGD du four de réduction. Le tube AGD est monté par élévation alternative du dispositif d'élévation mobile (4) et du dispositif d'élévation fixe (3), et par entraînement du bras télescopique pivotant (5). L'ensemble de l'opération de démontage est exécuté rapidement et efficacement en dehors d'un corps de four, en évitant et réduisant par ce moyen un grand nombre de mesures d'élévation, d'entraînement, de protection et de construction. Le démontage et la maintenance sont donc commodes.
PCT/CN2012/074880 2011-07-27 2012-04-28 Dispositif et procédé pour démonter un tube agd de four de réduction WO2013013525A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ZA2013/08699A ZA201308699B (en) 2011-07-27 2013-11-21 Device and method for mounting and dismounting agd pipeline of reducing furnace

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201110211486.X 2011-07-27
CN201110211486 2011-07-27

Publications (1)

Publication Number Publication Date
WO2013013525A1 true WO2013013525A1 (fr) 2013-01-31

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Country Status (3)

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CN (5) CN202639759U (fr)
WO (1) WO2013013525A1 (fr)
ZA (1) ZA201308699B (fr)

Cited By (4)

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Publication number Priority date Publication date Assignee Title
CN105499969A (zh) * 2014-09-22 2016-04-20 上海航天精密机械研究所 精密柱形件旋转进筒平台
CN112045606A (zh) * 2020-07-20 2020-12-08 中石化宁波工程有限公司 一种乙烯裂解炉炉管便捷拆装工艺
CN114468332A (zh) * 2022-02-14 2022-05-13 江苏丰尚智能科技有限公司 一种挤压机用成型模具及其物料挤压成型和拆装方法
CN116536475A (zh) * 2023-05-05 2023-08-04 中国三冶集团有限公司 一种大型转炉模块化安装方法

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* Cited by examiner, † Cited by third party
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CN104741910B (zh) * 2013-12-31 2017-01-18 中核武汉核电运行技术股份有限公司 一种整体式成组同步螺栓拉伸机安装小车
CN104191222B (zh) * 2014-09-11 2016-09-28 郑州贝龙液压技术有限公司 大型磨机衬板螺栓及法兰盘专用拆卸装置
CN111113296B (zh) * 2019-12-13 2021-04-23 北京动力机械研究所 一种环形曲面流量标定工装

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CN201276408Y (zh) * 2009-01-20 2009-07-22 王玉雷 预制梁移动装置

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105499969A (zh) * 2014-09-22 2016-04-20 上海航天精密机械研究所 精密柱形件旋转进筒平台
CN105499969B (zh) * 2014-09-22 2017-10-27 上海航天精密机械研究所 精密柱形件旋转进筒平台
CN112045606A (zh) * 2020-07-20 2020-12-08 中石化宁波工程有限公司 一种乙烯裂解炉炉管便捷拆装工艺
CN112045606B (zh) * 2020-07-20 2022-02-15 中石化宁波工程有限公司 一种乙烯裂解炉炉管便捷拆装工艺
CN114468332A (zh) * 2022-02-14 2022-05-13 江苏丰尚智能科技有限公司 一种挤压机用成型模具及其物料挤压成型和拆装方法
CN114468332B (zh) * 2022-02-14 2023-12-05 江苏丰尚智能科技有限公司 一种挤压机用成型模具及其物料挤压成型和拆装方法
CN116536475A (zh) * 2023-05-05 2023-08-04 中国三冶集团有限公司 一种大型转炉模块化安装方法

Also Published As

Publication number Publication date
ZA201308699B (en) 2015-03-25
CN202640257U (zh) 2013-01-02
CN202639805U (zh) 2013-01-02
CN202639759U (zh) 2013-01-02
CN202639761U (zh) 2013-01-02
CN202639760U (zh) 2013-01-02

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