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WO2019096019A1 - Équipement industriel de décomposition thermique de boues huileuses en continu - Google Patents

Équipement industriel de décomposition thermique de boues huileuses en continu Download PDF

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Publication number
WO2019096019A1
WO2019096019A1 PCT/CN2018/113920 CN2018113920W WO2019096019A1 WO 2019096019 A1 WO2019096019 A1 WO 2019096019A1 CN 2018113920 W CN2018113920 W CN 2018113920W WO 2019096019 A1 WO2019096019 A1 WO 2019096019A1
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WO
WIPO (PCT)
Prior art keywords
temperature zone
high temperature
thermal decomposition
conveyor chain
industrial continuous
Prior art date
Application number
PCT/CN2018/113920
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English (en)
Chinese (zh)
Inventor
蒲文忠
陈明晟
蒲曼
Original Assignee
绵阳油普能源科技有限责任公司
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 绵阳油普能源科技有限责任公司 filed Critical 绵阳油普能源科技有限责任公司
Publication of WO2019096019A1 publication Critical patent/WO2019096019A1/fr

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    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00—Treatment of sludge; Devices therefor
    • C02F11/10—Treatment of sludge; Devices therefor by pyrolysis
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
    • C10B47/00—Destructive distillation of solid carbonaceous materials with indirect heating, e.g. by external combustion
    • C10B47/18—Destructive distillation of solid carbonaceous materials with indirect heating, e.g. by external combustion with moving charge
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
    • C10B47/00—Destructive distillation of solid carbonaceous materials with indirect heating, e.g. by external combustion
    • C10B47/28—Other processes
    • C10B47/32—Other processes in ovens with mechanical conveying means
    • C10B47/40—Other processes in ovens with mechanical conveying means with endless conveying devices
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
    • C10B53/00—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G1/00—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal
    • 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
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00—Technologies for wastewater treatment
    • Y02W10/40—Valorisation of by-products of wastewater, sewage or sludge processing

Definitions

  • the invention relates to the field of thermal decomposition treatment of organic substances such as oil sludge, oil sand, heavy oil pyrolysis and domestic garbage pyrolysis, and particularly relates to a sewage sludge continuous pyrolysis device.
  • Oily sludge is a concomitant product of petrochemical production, and its treatment is mainly incineration and landfill.
  • these two treatment methods cannot achieve the required harmless treatment.
  • Dioxins are easily produced during incineration with sludge, and dioxin is a carcinogenic gas substance that affects the atmosphere and causes secondary pollution.
  • these two traditional treatment methods are costly.
  • the oily sludge pyrolysis technology is an effective method to solve the oil content in oily sludge.
  • the water After the temperature is raised, the water first evaporates, and then the temperature is raised, the light oil is volatilized, and the heavy oil is cracked into small molecules, and the light oil is volatilized and collected, and then the moisture and oil in the sludge are removed, and the obtained dry matter can be obtained.
  • the existing equipment for pyrolysis of oily sludge is mainly heated by rotation and has high energy consumption; the equipment covers a large area and the manufacturing cost is high; the particle size of the tailings discharge cannot be well controlled, and sludge coking occurs during the treatment process. To make the pyrolysis insufficient and the equipment cleaned up.
  • the present invention proposes a sewage sludge continuous pyrolysis device, which saves the rotary energy consumption of the pyrolysis furnace through multi-layer belt conveyance, reduces the equipment volume, reduces the equipment cost, and precisely controls the tailings particle size and drying. Degree, reduce secondary pollution.
  • An industrial continuous sewage sludge thermal decomposition device comprising a pyrolysis furnace and a heating chamber, wherein the heating chamber is disposed on one side or several sides of the outside of the pyrolysis furnace, and a feed inlet is arranged at a front portion of the pyrolysis furnace,
  • the pyrolysis furnace includes a full high temperature zone or a low temperature zone-high temperature zone; the pyrolysis furnace is provided with a conveyor chain belt, the end of the conveyor chain belt is a discharge port, and the discharge port is connected with a sealing device;
  • a conveyor chain belt is disposed in the full high temperature region, the conveyor chain belt includes at least two layers, and the transmission chain belts between the layers are staggered in a vertical direction;
  • the low temperature zone-high temperature zone includes a low temperature zone and a high temperature zone, the low temperature zone is adjacent to the feed port, and a transfer chain belt is disposed between the low temperature zone and the high temperature zone, and the low temperature zone and the high temperature zone are disposed between the low temperature zone and the high temperature zone.
  • the conveying chain belt of the low temperature zone comprises a feeding end and a discharging end; the conveying end belt of the feeding end and the discharging end are at least one layer, and the feeding end and the discharging end of each layer
  • the end conveyor belts are staggered in a vertical direction; the conveyor belts in the high temperature zone are at least two layers, and the conveyor chains in the high temperature zone are staggered in a vertical direction in a high temperature zone;
  • a burner for heating the furnace body of the cracking furnace is provided in the heating chamber, and the burner is connected to the fuel input device.
  • the pyrolysis furnace is a cracking furnace
  • the sealing device comprises a rotary sealing joint
  • the discharge port is connected to one end of the rotary sealing joint
  • the other end of the rotary sealing joint is connected with a cooling cylinder.
  • the feed port includes a solid feed port, a semi-fluid, and a fluid feed port.
  • the top of the cracking furnace is provided with an oil and gas outlet and a dust removing device.
  • the oil and gas are mainly light oil and water vapor. After the oil and gas are discharged, the water and oil are separated by condensation, and the obtained oil can be reused.
  • the dust removal device is mainly a wet dust removal device, which reduces the dust in the cracking furnace.
  • the furnace body of the cracking furnace is any one of a rectangular shape, a circular shape and a tubular shape. However, it is not limited to these types, and the shape of the furnace body can be selected and designed according to specific conditions.
  • a scraper is disposed at the bottom of the cracking furnace.
  • the scraper is mainly used to scrape the residual material on the conveyor chain to strengthen the operation of the equipment.
  • the low temperature zone-high temperature zone includes a low temperature zone and a high temperature zone; and the burner is disposed in the heating chamber of the full high temperature zone or the high temperature zone.
  • control device and the transmission power device are electrically connected, and the control device is electrically connected to the transmission power device; the transmission power device is connected to the transmission chain.
  • a solid conveyor belt for conveying solids is connected to the front end of the solid feed port.
  • a fluid and a semi-fluid transfer pump for transporting a semi-fluid or a fluid is connected to the front end of the semi-fluid and fluid feed port.
  • the transmission power device comprises a motor, a speed reducer, a driving wheel and a tensioning wheel, wherein the speed reducer is respectively connected with the driving wheel and the motor; the motor is an AC variable frequency stepless speed regulating motor; the tensioning wheel is set On the drive wheel, the conveyor chain is disposed between the drive wheel and the tensioning wheel.
  • the AC variable frequency stepless speed regulating motor is used to adjust the speed of the conveyor chain, effectively control the pyrolysis rate and residence time, and accurately control the particle size and dryness of the tailings.
  • the high temperature zone is provided with a burner, while in the low temperature zone, the burner is not provided, and the material in the high temperature zone directly enters the low temperature zone, because the low temperature zone and the feed port phase Adjacent, the waste heat from the high temperature zone can heat the raw materials in the low temperature zone after the feed port, making full use of heat energy. It can reduce the setting of the burner while saving energy.
  • the pyrolysis contains sludge, and the hydrocarbons in the sludge are collected in the meteorological environment without causing air pollution, recycling, and environmental protection.
  • FIG. 1 is a schematic view showing the structure of a pyrolysis furnace in a high temperature zone in the present invention
  • FIG. 2 is a schematic view showing the structure of the pyrolysis furnace in the low temperature zone-high temperature zone and the low temperature zone in the present invention
  • FIG. 3 is a schematic view showing the structure of the pyrolysis furnace in the low temperature zone-high temperature zone and the low temperature zone in the present invention
  • 1-cracking furnace 2-heating bin, 3-transport chain, 4-full high temperature zone, 5-low temperature zone, 6-high temperature zone, 7-discharge port, 8-rotation sealing joint, 9-cooling cylinder, 10 - burner, 11-solid feed port, 12-semifluid and fluid feed port, 13-oil and gas outlet, 14-solid conveyor, 15-fluid and semi-fluid transfer pump, 16-scraper, 17-dust removal device, 18-insulation board.
  • FIG. 1 An industrial continuous sewage sludge thermal decomposition device is shown in Fig. 1, comprising a pyrolysis furnace 1 and a heating chamber 2, and the heating chamber can be disposed on either side of the pyrolysis furnace, or on both sides, or three according to requirements.
  • the pyrolysis furnace may preferably be the cracking furnace 1.
  • the heating chamber 2 in this embodiment is disposed on the lower side of the cracking furnace 1, and the front end of the cracking furnace 1 is provided with a feeding port, and the feeding port includes a solid feeding port 11, a semi-fluid and a fluid inlet port 12, when the raw material is In the case of a solid, it can be directly transported by a solid conveying device.
  • the solid conveying belt 14 is preferably used for direct conveying; when the raw material is semi-fluid or fluid, the fluid and semi-fluid conveying pump 15 can be used for the raw material.
  • the inside of the cracking furnace 1 includes a full-temperature zone 4; the cracking furnace 1 is provided with a conveyor chain 3, the end of the conveyor chain 3 is a discharge port 7, and the discharge port 7 is connected with a sealing device.
  • the sealing device preferably comprises a rotary sealing joint 8, ie the discharge opening 7 can preferably be connected to one end of the rotary sealing joint 8, the other end of the rotary sealing joint 8 is connected to the cooling cylinder 9; in the full high temperature zone 4 there is a conveyor chain 3, which is conveyed
  • the chain belt 3 comprises at least two layers, and the conveyor chain belts 3 between each layer are staggered in a vertical direction;
  • the heating chamber 2 is provided with a burner 10 for heating the furnace body of the cracking furnace 1, the burner 10 and the gas Input device connection.
  • the fuel may include gas, coal gas, natural gas, fuel oil, etc., and the burners 10 are adapted to each other depending on the fuel.
  • the furnace body of the cracking furnace 1 is any one of a rectangular shape, a circular shape and a tubular shape, but is not limited to these types, and the shape of the furnace body can be selected and designed according to specific actual conditions.
  • the top of the cracking furnace 1 is provided with an oil and gas outlet 13 and a dust removing device 17.
  • the oil and gas contain water vapor, and the oil and gas after the separation is separated and collected by condensation, and the obtained oil can be reused.
  • the bottom of the cracking furnace 1 is provided with a scraper 16 which is mainly disposed near the discharge port 7 to facilitate scraping of the tailings on the drive chain belt at the discharge port 7, thereby ensuring smooth operation of the equipment.
  • the control of the transmission chain belt mainly adopts a control device and a transmission power device, and the control device is electrically connected with the transmission power device;
  • the transmission power device comprises an AC variable frequency stepless speed regulation motor, a speed reducer, a driving wheel and a tensioning wheel, and a speed reducer.
  • the driving wheel and the motor are respectively connected;
  • the tensioning wheel is disposed on the driving wheel,
  • the transmission chain belt 3 is disposed between the driving wheel and the tensioning wheel, the driving wheel rotates, and the transmission chain belt is driven to move by friction.
  • the control device can directly control the frequency of the AC variable frequency stepless speed regulating motor, and then control the speed of the speed reducer and the driving wheel to control the running speed of the raw material in the cracking furnace 1 and ensure the granularity and dryness of the tailings.
  • An industrial continuous sewage sludge thermal decomposition device is shown in Fig. 2 and Fig. 3, and comprises a pyrolysis furnace 1 and a heating chamber 2, and the heating chamber can be disposed on either side or both sides of the outside of the pyrolysis furnace according to requirements. Or, on the three sides, or on the four sides, in the second embodiment of the present invention, the pyrolysis furnace may preferably be the cracking furnace 1.
  • the heating chamber 2 in this embodiment is disposed on the lower side of the cracking furnace 1, and the front end of the cracking furnace 1 is provided with a feeding port, and the feeding port includes a solid feeding port 11, a semi-fluid and a fluid inlet port 12, when the raw material is When solid, it can be directly transported through the solid conveyor belt 14; when the raw material is semi-fluid or fluid, the raw material can be fed and fed by the fluid and semi-fluid transfer pump 15 at this time.
  • the inside of the cracking furnace 1 includes a low temperature zone-high temperature zone; the cracking furnace 1 is provided with a conveyor chain belt 3, the end of the conveyor chain belt 3 is a discharge port 7, and the discharge port 7 is connected with a sealing device, in the second embodiment of the present invention
  • the sealing device preferably comprises a rotary sealing joint 8, that is, the discharge opening 7 can preferably be connected to one end of the rotary sealing joint 8, and the other end of the rotary sealing joint 8 is connected with the cooling cylinder 9;
  • the low temperature zone-high temperature zone includes the low temperature zone 5 and the high temperature zone 6, wherein the low temperature zone 5 is adjacent to the feed port, the transfer chain zone 3 is provided between the low temperature zone and the high temperature zone, the heat insulation board 18 is arranged between the low temperature zone 5 and the high temperature zone 6, and the conveyor chain zone of the low temperature zone 5 is provided.
  • the conveyor belt 3 of the high temperature zone 6 is at least two layers, and the conveyor chain belts 3 of the high temperature zone 6 are staggered in the vertical direction in the high temperature zone 6;
  • the heating compartment 2 is provided with a heating for heating the furnace body of the cracking furnace 1.
  • the nozzle 10 is mainly disposed below the high temperature zone 6, and the burner 10 is connected to the gas input device.
  • the fuel may include gas, coal gas, natural gas, fuel oil, etc., and the burners 10 are adapted to each other depending on the fuel.
  • the furnace body of the cracking furnace 1 is any one of a rectangular shape, a circular shape and a tubular shape, but is not limited to these types, and the shape of the furnace body can be selected and designed according to specific actual conditions.
  • the top of the cracking furnace 1 is provided with an oil and gas outlet 13 and a dust removing device 17.
  • the oil and gas contain water vapor, and the oil and gas after the separation is separated and collected by condensation, and the obtained oil can be reused.
  • the bottom of the cracking furnace 1 is provided with a scraper 16 which is mainly disposed near the discharge port 7 to facilitate scraping of the tailings on the drive chain belt at the discharge port 7, thereby ensuring smooth operation of the equipment.
  • the control of the transmission chain belt mainly adopts a control device and a transmission power device, and the control device is electrically connected with the transmission power device;
  • the transmission power device comprises an AC variable frequency stepless speed regulating motor, a speed reducer, a driving wheel and a tensioning wheel, The reducer is respectively connected with the driving wheel and the motor;
  • the tensioning wheel is disposed on the driving wheel,
  • the transmission chain belt 3 is disposed between the driving wheel and the tensioning wheel, the driving wheel rotates, and the transmission chain belt is driven by friction .
  • the control device can directly control the frequency of the AC variable frequency stepless speed regulating motor, and then control the speed of the speed reducer and the driving wheel to control the running speed of the raw material in the cracking furnace 1 and ensure the granularity and dryness of the tailings.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Wood Science & Technology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
  • Gasification And Melting Of Waste (AREA)

Abstract

L'invention concerne un équipement industriel de décomposition thermique de boue huileuse en continu, appartenant au domaine du traitement des boues huileuses. L'équipement industriel de décomposition thermique de boue huileuse en continu comprend un four de craquage et une chambre de chauffage, la chambre de chauffage étant disposée à l'extérieur du four de craquage, et l'intérieur du four de craquage comprenant une zone de haute température complète ou une zone basse température-haute température. Le four de craquage est pourvu d'une courroie transporteuse à traction par chaînes, et la courroie transporteuse à traction par chaînes peut être multicouche et en quinconce. L'extrémité de la courroie transporteuse à traction par chaînes est un orifice d'évacuation, l'orifice d'évacuation est relié à une extrémité d'un joint d'étanchéité rotatif, et l'autre extrémité du joint d'étanchéité rotatif est reliée à un cylindre de refroidissement. Dans l'équipement, la courroie transporteuse à traction par chaînes est décalée dans la direction verticale, ce qui augmente le temps de séjour de la boue huileuse dans le four de craquage, de sorte que la pyrolyse soit plus adéquate. De plus, la longueur et la taille de l'équipement sont réduites, ce qui permet d'économiser en investissement d'équipement. Un moteur régulateur de vitesse continue à fréquence variable à courant alternatif est utilisé pour ajuster la vitesse de la courroie transporteuse à traction par chaînes, de telle sorte que le taux de pyrolyse et le temps de séjour peuvent être efficacement contrôlés, et la taille et la siccité des particules peuvent être contrôlées avec précision.
PCT/CN2018/113920 2017-11-20 2018-11-05 Équipement industriel de décomposition thermique de boues huileuses en continu WO2019096019A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201711156342.2A CN109810718A (zh) 2017-11-20 2017-11-20 工业连续化污油泥热分解设备
CN201711156342.2 2017-11-20

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CN116891754A (zh) * 2023-09-11 2023-10-17 山西大地民基生态环境股份有限公司 一种连续进料秸秆高速炭化装置

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WO2013043915A1 (fr) * 2011-09-21 2013-03-28 Chevron U.S.A. Inc. Système de pyrolyse utilisant, à des fins de séchage, des gaz de fumée refroidis
CN103553290A (zh) * 2013-10-29 2014-02-05 大连环资科技有限公司 一种含油污泥资源化处理方法
CN104449795A (zh) * 2014-12-22 2015-03-25 冯强 油泥专用裂解装置及裂解工艺
CN207646041U (zh) * 2017-11-20 2018-07-24 绵阳油普能源科技有限责任公司 电热工业连续化污油泥热分解设备
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