WO2008083574A1 - A dry coal powder gasification furnace - Google Patents

A dry coal powder gasification furnace Download PDF

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Publication number
WO2008083574A1
WO2008083574A1 PCT/CN2007/071263 CN2007071263W WO2008083574A1 WO 2008083574 A1 WO2008083574 A1 WO 2008083574A1 CN 2007071263 W CN2007071263 W CN 2007071263W WO 2008083574 A1 WO2008083574 A1 WO 2008083574A1
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WO
WIPO (PCT)
Prior art keywords
gasification
gas
furnace body
gasification furnace
nozzles
Prior art date
Application number
PCT/CN2007/071263
Other languages
French (fr)
Chinese (zh)
Inventor
Jiule Zhou
Original Assignee
Jiule Zhou
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 Jiule Zhou filed Critical Jiule Zhou
Priority to AU2007343509A priority Critical patent/AU2007343509B2/en
Priority to DE112007003155T priority patent/DE112007003155T5/en
Priority to US12/520,981 priority patent/US20100018117A1/en
Priority to JP2009543333A priority patent/JP2010514858A/en
Publication of WO2008083574A1 publication Critical patent/WO2008083574A1/en

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
    • C10J3/46—Gasification of granular or pulverulent flues in suspension
    • C10J3/48—Apparatus; Plants
    • C10J3/485—Entrained flow gasifiers
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
    • C10J3/72—Other features
    • C10J3/74—Construction of shells or jackets
    • C10J3/76—Water jackets; Steam boiler-jackets
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
    • C10J3/72—Other features
    • C10J3/82—Gas withdrawal means
    • C10J3/84—Gas withdrawal means with means for removing dust or tar from the gas
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
    • C10K1/00—Purifying combustible gases containing carbon monoxide
    • C10K1/08—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
    • C10K3/00—Modifying the chemical composition of combustible gases containing carbon monoxide to produce an improved fuel, e.g. one of different calorific value, which may be free from carbon monoxide
    • C10K3/001—Modifying the chemical composition of combustible gases containing carbon monoxide to produce an improved fuel, e.g. one of different calorific value, which may be free from carbon monoxide by thermal treatment
    • C10K3/003—Reducing the tar content
    • C10K3/006—Reducing the tar content by steam reforming
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00—Details of gasification processes
    • C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
    • C10J2300/0913—Carbonaceous raw material
    • C10J2300/093—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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/10—Process efficiency
    • Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines

Definitions

  • the invention relates to a gas preparation device, in particular to a novel 1000 pulverized coal gasification furnace.
  • the present invention is the first ⁇ request "preparation method of high-pressure, high-gas gas" (Application No.: 200610045968, 1) Providing an implemented device
  • the technical solution adopted is: a 1000 pulverized coal gasification furnace comprising a furnace body, wherein the furnace body is composed of a hot dirty gas gasification furnace body and a hot gasification gas reforming purification furnace body, wherein The upper part of the hot dirty gasification gasifier is a gasification chamber, and the lower part thereof is a sedimentation chamber.
  • the upper part of the hot gasification gasification furnace body is provided with a plurality of coal powder nozzles, and the first end of the plurality of coal powder nozzles
  • the gasification chamber is connected, the other end is connected with a coal injection pipe, the coal injection pipe is connected with a screw feeder, the screw feeder is arranged at the bottom of the loading lock bucket, and the hot gas gasifier is heated.
  • the upper part of the pulverized coal nozzle is provided with a plurality of air nozzles communicating with the gasification chamber, and the middle portion of the hot dirty gas gasification furnace body is disposed under the plurality of air nozzles and is provided with a plurality of gas
  • the regulating gasification nozzle is connected to the chemical chamber, and a lower portion of the hot dirty gasification furnace body is provided with a plurality of cooling nozzles communicating with the sedimentation chamber, and a water cooling wall is disposed in the sedimentation chamber, and a lower portion of the gasification chamber passes through Connecting channel and said hot dirty gas reforming purification furnace body Connection, J1 is connected, the upper part of the hot dirty gas reforming purification furnace body is provided with a gas outlet, the top of which is provided with a material clock, the lower part is provided with a plurality of cooling nozzles, and the bottom is provided with a slag lock bucket, hot dirty gas reforming There is a water-cooled furnace in the middle of the purification furnace.
  • Fluidization and nozzle structure are simple, easy to manufacture and reliable.
  • Gas desulfurization process is simple, high efficiency of desulfurization and dust removal
  • Country 1 is a structural schematic circle of an embodiment of the present invention.
  • the pulverized coal gasification furnace of the present invention including the hot dirty gas gasification furnace body 1, the hot dirty gas reforming and purifying furnace body 2.
  • the hot dirty gas gasification furnace body 1 is a fluidized high temperature furnace.
  • the fluidization adopts the simple 3 ⁇ 4 top multi-nozzle side spray method, the gasification enthalpy uses steam and oxygen or the high temperature air side oblique upward blowing type, and the upper part of the hot dirty gas gasification furnace body 1 is provided with a gasification chamber 3, which adopts refractory material.
  • the lining, the outer lining insulation material, the lower part of the hot dirty gas gasification furnace body is provided with a settling chamber 4, and the settling chamber 4 is lined with a water-cooled wall.
  • the hot dirty gas purifying and purifying furnace body 2 is lined with a refractory material, and is lined with a heat insulating material, and the gas is reformed by hot dirty gas.
  • the top of the purification furnace body 2 is discharged.
  • the upper part of the hot dirty gasification gasifier body is provided with a plurality of gas nozzles 9, and a plurality of gas nozzles 9 are connected to the coal injection pipe 8 and are connected to each other.
  • the hot dirty gas gasification furnace body is located at the gas nozzle.
  • a plurality of air nozzles 10 which are inclined upward and communicate with the gasification chamber 3 are disposed below the air.
  • the middle portion of the hot dirty gas gasification furnace body 1 is disposed below the air nozzle 10 and is provided with a plurality of upward tilting and gasification chambers 3.
  • the gasification nozzle 11 is adjusted in communication. After the milled coal is crushed by the coal mill, it is sent to the loading lock bucket 6, and enters the coal injection pipe ⁇ 8 through the screw feeder 7, and the high pressure steam is introduced into the coal injection pipe ⁇ 8, and the steam is passed through the steam.
  • the pulverized coal is injected into the gasification chamber 3 through the gas nozzle 9, the steam is preheated by the high efficiency steam preheater, and the air is preheated by the high efficiency air heater, and the preheated high temperature air (or oxygen) and water vapor are sprayed from the set S.
  • the air nozzle 10 below the coal pipe 8 is injected into the gasification chamber 3, and the high-temperature steam and high-temperature air injected from the air nozzle 10 blow the coal powder in the gasification chamber 3, and the reaction mixture is adjusted to sufficiently adjust the gasification nozzle 11 to A high temperature S gas (or oxygen) is injected into the furnace to adjust the product of the gasification reaction.
  • the crude gas generated by the reaction enters the hot slag gas reforming through the passage to purify the furnace body 2, and the ash contained in the crude gas
  • the flooding is carried into the sedimentation chamber 4 by gravity sedimentation.
  • the lower part of the sedimentation chamber 4 is provided with a plurality of cooling nozzles 12, the plurality of cooling nozzles 12 are sprayed with low-temperature steam, the sedimentation chamber 4 is provided with a water-cooling wall 3, and the bottom of the sedimentation chamber 4 is provided.
  • the slag discharge port 14 and the slag discharge port are provided with slag discharge buckets 15 at four places, the ash slag becomes solid through the water wall 13 , and the solid ash slag is discharged outside the furnace through the slag discharge bucket 15 , and the coarse gas passes through the passage 5 Hot dirty gas reforming
  • a water-cooled furnace 19 is arranged in the middle of the hot dirty gas reforming and purifying furnace body 2
  • a top material clock 16 is arranged on the top of the hot dirty gas reforming purification furnace body 2 and the upper part is provided with an upper material At the tuyere 20, a certain amount of coke is added to the furnace through the upper material clock 16, and a part of the lime is mixed in the coke.
  • the crude gas passes through the reduction layer of the coke layer to decompose the incompletely reacted water vapor in the crude gas into gas and carbon monoxide, and part of the carbon dioxide can be reduced to carbon oxide by the coke, and the hydrogen sulfide in the gas can be absorbed by the lime, and the reduced gas
  • the outside of the furnace is led out by a gas outlet 20 provided above the hot dirty gas reforming purification furnace body 2.
  • the bottom of the hot dirty gas reforming purification furnace body 2 is provided with a plurality of cooling nozzles ⁇ and a liquid discharge lock hopper 18, and the ash which reacts the coke with the gas by the low temperature steam is clarified and discharged out of the furnace through the liquid discharge lock hopper 18.
  • the gas from the hot dirty gas reforming and purifying furnace body 2 is recovered by waste heat recovery, bag dust removal, TRT residual pressure power generation, and then stored in the medium pressure tank for use by the user.

Abstract

A dry coal powder gasification furnace comprises a furnace body. The furnace body consists of a gasification furnace body for hot and dirty coal gas (1) and a hot and dirty coal gas reforming and cleaning furnace body (2). There is a gasification chamber (3) in the upper part of the gasification furnace body (1) and a settling chamber (4) in the lower part of the gasification furnace body (1). There are multiple coal powder nozzles (9) at the upper part of the gasification furnace body (1). One ends of the multiple coal powder nozzles (9) are connected to the gasification chamber (3) and another ones are connected to a coal-spraying pipe (8). The coal-spraying pipe (8) is connected to a screw feeder (7). The screw feeder (7) is mounted below a loading lock hopper (6). Multiple gas nozzles (10) connected to the gasification chamber (3) are mounted on the upper part of the gasification furnace body (1) and below the coal powder nozzles (9). Multiple regulating gasification nozzles (11) connected to the gasification chamber (3) are mounted on the middle part of the gasification furnace body (1) and below the multiple gas nozzles (10). Multiple cool nozzles (12) connected to the settling chamber (4) are provided on the lower part of the gasification furnace body (1). Water-cooled walls (13) are provided in the settling chamber (4). A water-cooling grate (19) is mounted in the middle part of the reforming and cleaning furnace body (2). The fluidized bed gasification furnace with the nozzles is simple in structure and reliable in operation. The compositions of the produced coal gas can be easily controlled and the high-pressure coal gas produced can be directly supplied to users.

Description

技术领域  Technical field
本发明涉及一种煤气制备设备， 具体是一种新型千煤粉气化炉。  The invention relates to a gas preparation device, in particular to a novel 1000 pulverized coal gasification furnace.
背景技术  Background technique
在冶金和化工合成工业中洁净煤综合利用、煤的气化和生产高热值，高含 氣煤气有着广泛的用途， 本发明是为在先 Φ请案《高压、高含氣煤气的制备方 法》 (申请号: 200610045968,1 ) 提供一种实施的设备  In the metallurgical and chemical synthesis industries, the comprehensive utilization of clean coal, the gasification of coal and the production of high calorific value, high gas-containing gas have a wide range of uses, the present invention is the first Φ request "preparation method of high-pressure, high-gas gas" (Application No.: 200610045968, 1) Providing an implemented device
发明内容  Summary of the invention
本发明的目的在于提供一种能够实现高压、 高含氢煤气的煤粉气化炉。 采用的技术方案是- 一种千煤粉气化炉，包括炉体，其特征在于所述的炉体由热脏煤气气化炉 体和热赃煤气重整净化炉体两部分组成，所述的热脏煤气气化炉体内的上部为 气化室， 其下部为沉降室， 热赃煤气气化炉体的上部设置有多个煤粉喷嘴， 多 个煤粉喷嘴的一 ·端与所述的气化室相连通， 其另 -一端与一喷煤管道相连接， 喷 煤管道与一螺旋给料器相连接，螺旋给料器设置在上料锁斗的底部， 热赃煤气 气化炉的上部位于煤粉喷嘴的下方设置有多个与所述的气化室相连通的喷气 嘴，热脏煤气气化炉体的中部位于多个喷气嘴的下方设置有多个与所述的气化 室相连通的调节气化喷嘴，热脏煤气气化炉体的下部设置有多个与所述的沉降 室相连通的降温喷嘴，沉降室内设有水冷壁， 所述气化室的下部通过连接通道 与所述的热脏煤气重整净化炉体相连接， J1相连通， 热脏煤气重整净化炉体的 上部设有煤气出口， 其顶部设有料钟， 其下部设置有多个降温喷嘴， 其底部设 置有排渣锁斗， 热脏煤气重整净化炉体内的中部设有水冷炉篦  It is an object of the present invention to provide a pulverized coal gasification furnace capable of realizing high pressure, high hydrogen containing gas. The technical solution adopted is: a 1000 pulverized coal gasification furnace comprising a furnace body, wherein the furnace body is composed of a hot dirty gas gasification furnace body and a hot gasification gas reforming purification furnace body, wherein The upper part of the hot dirty gasification gasifier is a gasification chamber, and the lower part thereof is a sedimentation chamber. The upper part of the hot gasification gasification furnace body is provided with a plurality of coal powder nozzles, and the first end of the plurality of coal powder nozzles The gasification chamber is connected, the other end is connected with a coal injection pipe, the coal injection pipe is connected with a screw feeder, the screw feeder is arranged at the bottom of the loading lock bucket, and the hot gas gasifier is heated. The upper part of the pulverized coal nozzle is provided with a plurality of air nozzles communicating with the gasification chamber, and the middle portion of the hot dirty gas gasification furnace body is disposed under the plurality of air nozzles and is provided with a plurality of gas The regulating gasification nozzle is connected to the chemical chamber, and a lower portion of the hot dirty gasification furnace body is provided with a plurality of cooling nozzles communicating with the sedimentation chamber, and a water cooling wall is disposed in the sedimentation chamber, and a lower portion of the gasification chamber passes through Connecting channel and said hot dirty gas reforming purification furnace body Connection, J1 is connected, the upper part of the hot dirty gas reforming purification furnace body is provided with a gas outlet, the top of which is provided with a material clock, the lower part is provided with a plurality of cooling nozzles, and the bottom is provided with a slag lock bucket, hot dirty gas reforming There is a water-cooled furnace in the middle of the purification furnace.
上述的多个喷气嘴、多个调节气体喷嘴及多个降温喷嘴的喷出口均倾斜向 本发明的主要优点是：  The above-described plurality of air nozzles, a plurality of regulating gas nozzles, and a plurality of cooling nozzles are all inclined to the present invention. The main advantages of the present invention are:
1、 流态化和喷嘴结构简单， 易于制造、 运行可靠。  1. Fluidization and nozzle structure are simple, easy to manufacture and reliable.
2、 高温蒸汽和空气或氧气可直接参与 ;1气反应， 不需要点火装置。 2. High temperature steam and air or oxygen can participate directly; 1 gas reaction, no ignition device is required.
3、 提高了煤气中氣气的含量， 降低了纯氧的消耗。 3. Increase the content of gas in the gas and reduce the consumption of pure oxygen.
4、 操作简单、 煤.气成份易控制。 5、 水冷溶液低温气化凝固， 无废水污染， 同时可以回收熔渣余热以重造 高温蒸 ¾»4. Simple operation, easy to control coal and gas components. 5. The water-cooled solution is solidified at low temperature and has no waste water pollution. At the same time, the residual heat of the slag can be recovered to regenerate the high-temperature steam.
, 煤气脱硫工艺简便， 脱硫除尘效率高  , Gas desulfurization process is simple, high efficiency of desulfurization and dust removal
Ί、 可直接制造高 ffi煤气供应用户， 不需要加压装置。  Ί, can directly manufacture high ffi gas supply users, no need for pressurized devices.
附图说明  DRAWINGS
国 1是本发明一种实施例的结构示意圈。  Country 1 is a structural schematic circle of an embodiment of the present invention.
具体实施方式  detailed description
请参见國 1， 本发明的煤粉气化炉， 包括热脏煤气气化炉体 1、 热脏煤气重整 净化炉体 2.、 热脏煤气气化炉体 1为流态化高温炉， 流态化采用简 ¾顶部多喷 嘴侧喷方式， 气化釆用蒸汽和氧气或高温空气侧面向上斜吹式，热脏煤气气化 炉体 1 内的上部设置有气化室 3， 采用耐火材料炉衬， 外衬绝热材料， 热脏煤 气气化炉体〗 的下部设有沉降室 4 , 沉降室 4釆用水冷壁内衬。 在气化室 3的 下部有通道 5与热脏煤气重整净化炉体 2相连接， 热脏煤气靈整净化炉体 2 采用耐火材料内衬，外衬绝热材料,煤气由热脏煤气重整净化炉体 2顶部排出。 热脏煤气气化炉体 1.的上部设有多个煤气喷嘴 9， 多个煤气喷嘴 9与 -一喷煤管 道 8相连接， 且相连通， 热脏煤气气化炉体〗上位于煤气喷嘴 9的下方设置有 多个向上倾斜并与气化室 3相连通的喷气嘴 10， 热脏煤气气化炉体 1的中部 位于喷气嘴 10的下方设置有多个向上倾斜并与气化室 3相连通的调节气化喷 嘴 11。 烘千后的煤经磨煤机破碎后， 送入上料锁斗 6中， 通过螺旋给 料器 7 进入到喷煤管遒 8中， 喷煤管遨 8中通入高压蒸汽，通过蒸汽把煤粉通过煤气 喷嘴 9喷入气化室 3内， 蒸汽通过高效蒸汽预热器预热， 空气通过高效热风器 预热， 预热后的高温空气（或氧气）和水蒸汽从设 S在喷煤管道 8下方的喷气 嘴 10喷入气化室 3内， 由喷气嘴 10喷入的高温蒸汽和高温空气在气化室 3 内将煤粉吹散，充分混合反应 调节气化喷嘴 11可以向炉内喷入高温 S气（或 氧气）， 以调整气化反应的产物。 反应生成的粗煤气经通道进入热赃煤气重整 净化炉体 2中， 粗煤气中含有的灰 Please refer to the country 1, the pulverized coal gasification furnace of the present invention, including the hot dirty gas gasification furnace body 1, the hot dirty gas reforming and purifying furnace body 2. The hot dirty gas gasification furnace body 1 is a fluidized high temperature furnace. The fluidization adopts the simple 3⁄4 top multi-nozzle side spray method, the gasification enthalpy uses steam and oxygen or the high temperature air side oblique upward blowing type, and the upper part of the hot dirty gas gasification furnace body 1 is provided with a gasification chamber 3, which adopts refractory material. The lining, the outer lining insulation material, the lower part of the hot dirty gas gasification furnace body is provided with a settling chamber 4, and the settling chamber 4 is lined with a water-cooled wall. In the lower part of the gasification chamber 3, there is a passage 5 connected to the hot dirty gas reforming and purifying furnace body 2, and the hot dirty gas purifying and purifying furnace body 2 is lined with a refractory material, and is lined with a heat insulating material, and the gas is reformed by hot dirty gas. The top of the purification furnace body 2 is discharged. The upper part of the hot dirty gasification gasifier body is provided with a plurality of gas nozzles 9, and a plurality of gas nozzles 9 are connected to the coal injection pipe 8 and are connected to each other. The hot dirty gas gasification furnace body is located at the gas nozzle. A plurality of air nozzles 10 which are inclined upward and communicate with the gasification chamber 3 are disposed below the air. The middle portion of the hot dirty gas gasification furnace body 1 is disposed below the air nozzle 10 and is provided with a plurality of upward tilting and gasification chambers 3. The gasification nozzle 11 is adjusted in communication. After the milled coal is crushed by the coal mill, it is sent to the loading lock bucket 6, and enters the coal injection pipe 遒8 through the screw feeder 7, and the high pressure steam is introduced into the coal injection pipe 遨8, and the steam is passed through the steam The pulverized coal is injected into the gasification chamber 3 through the gas nozzle 9, the steam is preheated by the high efficiency steam preheater, and the air is preheated by the high efficiency air heater, and the preheated high temperature air (or oxygen) and water vapor are sprayed from the set S. The air nozzle 10 below the coal pipe 8 is injected into the gasification chamber 3, and the high-temperature steam and high-temperature air injected from the air nozzle 10 blow the coal powder in the gasification chamber 3, and the reaction mixture is adjusted to sufficiently adjust the gasification nozzle 11 to A high temperature S gas (or oxygen) is injected into the furnace to adjust the product of the gasification reaction. The crude gas generated by the reaction enters the hot slag gas reforming through the passage to purify the furnace body 2, and the ash contained in the crude gas
淹通过重力沉降迸入沉降室 4中， 沉降室 4下部设有多个降温喷嘴 12 , 多个 降温喷嘴 12喷入低温蒸汽， 沉降室 4设置有水冷壁】3， 沉降室 4的底部设有 排渣口 14， 排渣口】4处设有排渣锁斗 15， 灰渣通过水冷壁 13变成固体， 固 化后的灰渣通过排渣斗 15排出炉外， 粗煤气通过通道 5进 ^热脏煤气重整净 化炉体 2中， 热脏煤气重整净化炉体 2内的中部设有水冷炉篦 19， 热脏煤气 重整净化炉体 2的顶部设有上料料钟 16， 其上部幵设有出风口 20， 通过上料 料钟 16向炉内加入一定量的焦碳， 焦碳中混合部分石灰。 粗煤气经过焦炭层 还原层可以使粗煤气中未完全反应的水蒸气分解为氣气和一氧化碳，部分二氧 化碳可以被焦炭还原为 氧化碳， 煤气中的硫化氢可以被石灰所吸收，经过还 原的煤气由设置在热脏煤气重整净化炉体 2上方的煤气出口 20导出炉外。 热 脏煤气重整净化炉体 2底部设有多个降温喷嘴 Π和排液锁斗 18， 通过低温蒸 汽把焦炭同煤气反应后的灰分園化并通过排液锁斗 18排出炉外。 从热脏煤气 重整净化炉体 2出来的煤气通过余热回收、布袋除尘、 TRT余压发电后迸入中 压罐储存， 以供用户使用。 The flooding is carried into the sedimentation chamber 4 by gravity sedimentation. The lower part of the sedimentation chamber 4 is provided with a plurality of cooling nozzles 12, the plurality of cooling nozzles 12 are sprayed with low-temperature steam, the sedimentation chamber 4 is provided with a water-cooling wall 3, and the bottom of the sedimentation chamber 4 is provided. The slag discharge port 14 and the slag discharge port are provided with slag discharge buckets 15 at four places, the ash slag becomes solid through the water wall 13 , and the solid ash slag is discharged outside the furnace through the slag discharge bucket 15 , and the coarse gas passes through the passage 5 Hot dirty gas reforming In the furnace body 2, a water-cooled furnace 19 is arranged in the middle of the hot dirty gas reforming and purifying furnace body 2, and a top material clock 16 is arranged on the top of the hot dirty gas reforming purification furnace body 2, and the upper part is provided with an upper material At the tuyere 20, a certain amount of coke is added to the furnace through the upper material clock 16, and a part of the lime is mixed in the coke. The crude gas passes through the reduction layer of the coke layer to decompose the incompletely reacted water vapor in the crude gas into gas and carbon monoxide, and part of the carbon dioxide can be reduced to carbon oxide by the coke, and the hydrogen sulfide in the gas can be absorbed by the lime, and the reduced gas The outside of the furnace is led out by a gas outlet 20 provided above the hot dirty gas reforming purification furnace body 2. The bottom of the hot dirty gas reforming purification furnace body 2 is provided with a plurality of cooling nozzles 排 and a liquid discharge lock hopper 18, and the ash which reacts the coke with the gas by the low temperature steam is clarified and discharged out of the furnace through the liquid discharge lock hopper 18. The gas from the hot dirty gas reforming and purifying furnace body 2 is recovered by waste heat recovery, bag dust removal, TRT residual pressure power generation, and then stored in the medium pressure tank for use by the user.

Claims

权 利 要 求 Rights request
1、 一种千煤粉气化炉， 包括炉体， 其特征在于所述的炉体由热赃煤气气化 炉体和热脏煤气重整净化炉体两部分组成， 所述的热脏煤气气化炉体内的上部 为气化室， 其下部为沉降室， 热赃煤气气化炉体的上部设置有多个煤粉喷嘴， 多个煤粉喷嘴的一端与所述的气化室相连通， 其另一端与一喷煤管道相连接， 喷煤管遨与一螺旋给料器相连接， 嫘旋给料器设置在上料锁斗的底部， 热脏煤 气气化炉的上部位于煤粉喷嘴的下方设置有多个与所述的气化室相连通的喷气 嘴， 热脏煤气气化炉体的中部位于多个喷气嘴的下方设置有多个与所述的气化 室相连通的调节气化喷嘴， 热脏煤气气化炉体的下部设置有多个与所述的沉降 室相连通的降温喷嘴， 沉降室内设有水冷壁， 所述气化室的下部通过连接通遨 与所述的热脏煤气重整净化炉体相连接， 且相连通， 热脏煤气重整净化炉体的 上部设有煤气出 ::， 其顶部设有料钟, 其下部设置有多个降温喷嘴， 其底部设 置有排渣锁斗， 热脏煤气重整净化炉体内的中部设有水冷炉篦 ¾ 1. A 1000 pulverized coal gasification furnace, comprising a furnace body, characterized in that the furnace body is composed of a hot gasification gasification furnace body and a hot dirty gas reforming purification furnace body, the hot dirty gas The upper part of the gasification furnace is a gasification chamber, and the lower part thereof is a sedimentation chamber. The upper part of the hot gasification gasification furnace body is provided with a plurality of coal powder nozzles, and one end of the plurality of coal powder nozzles is connected with the gasification chamber. The other end is connected with a coal injection pipe, the coal injection pipe is connected with a screw feeder, the cyclone feeder is arranged at the bottom of the loading lock bucket, and the upper part of the hot dirty gas gasification furnace is located at the coal powder a plurality of air nozzles communicating with the gasification chamber are disposed under the nozzle, and a central portion of the hot dirty gas gasification furnace body is disposed below the plurality of air nozzles to be connected to the gasification chamber. Adjusting the gasification nozzle, a lower portion of the hot dirty gasification furnace body is provided with a plurality of cooling nozzles communicating with the sedimentation chamber, a water cooling wall is disposed in the sedimentation chamber, and a lower portion of the gasification chamber is connected to the ventilation chamber The hot dirty gas reforming purification furnace body is connected and connected to each other. The upper part of the dirty gas reforming and purifying furnace body is provided with gas outlet:: a material clock is arranged at the top, a plurality of cooling nozzles are arranged at the bottom thereof, and a slag lock bucket is arranged at the bottom, and the hot dirty gas reforming purifies the middle of the furnace body. Water-cooled stove 篦3⁄4
2、 根据权利要求 1所述的一种干煤粉气化炉， 其特征在于所述的多个喷气 嘴、 多个调节气体喷嘴及多个降温喷嘴的喷出口均倾斜向上。  2. A dry coal powder gasification furnace according to claim 1, wherein said plurality of gas nozzles, said plurality of gas regulating nozzles and said plurality of temperature reducing nozzle discharge ports are inclined upward.
3、 根据权利要求 1所述的一种千煤粉气化炉， 其特征在于所述的流态化混 合方式， 具体为： 煤粉通过高压蒸汽利用喷嘴喷入炉中， 若千排高温空气 （或 氧气） 及蒸汽由布置在煤粉喷嘴下方的喷嘴喷入斜向上方喷入炉内， 煤气成份 可调。  3. A 1000 pulverized coal gasification furnace according to claim 1, wherein the fluidized mixing mode is specifically: pulverized coal is sprayed into the furnace through a high pressure steam using a nozzle, if a thousand rows of high temperature air (or oxygen) and steam are sprayed into the furnace obliquely upward from the nozzle disposed below the pulverized coal nozzle, and the gas composition is adjustable.
4、 根据权利要求 1所述的一种干煤粉气化炉， 其特征在于所述的两种高效 预热气体在煤粉气化炉中的应用， 具体为： 气化炉中所喷入的反应气体， 蒸汽 通过高效蒸气预热器预热 ilOOO- 空气通过高效空气预热器预热到 1000  4. A dry coal powder gasification furnace according to claim 1, wherein the two high-efficiency preheating gases are used in a coal powder gasification furnace, specifically: injecting into the gasification furnace The reaction gas, steam is preheated by a high-efficiency steam preheater ilOOO- air is preheated to 1000 by a high efficiency air preheater
5、 根据权利要求 1所述的一种千煤粉气化炉， 其特征在于所述的气化炉所 生成的气体的主要组成成份为； CO:35-50% ¾:38-43%汽中含有少量的 CH4 及 Ν2; 本气体可用作燃料， 也可用作化工合成原料气、 提取氣气的原料气等 的热赃煤气重整净化炉体， 不仅限于本结构， 也可作为焦炉荒煤气的重整。 5. A 1000 pulverized coal gasification furnace according to claim 1, wherein the main component of the gas generated by the gasification furnace is: CO: 35-50% 3⁄4: 38-43% steam It contains a small amount of CH 4 and Ν 2; this gas can be used as a fuel, and can also be used as a hot gas gas reforming and purifying furnace body for chemical synthesis raw material gas, raw material gas for extracting gas, etc., not limited to this structure, but also As a reforming of coke oven waste gas.
PCT/CN2007/071263 2006-12-28 2007-12-19 A dry coal powder gasification furnace WO2008083574A1 (en)

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DE112007003155T DE112007003155T5 (en) 2006-12-28 2007-12-19 A type of gasification furnace for capable coal powder
US12/520,981 US20100018117A1 (en) 2006-12-28 2007-12-19 Dry coal powder gasification furnance
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CN105087071A (en) * 2015-09-11 2015-11-25 哈尔滨工业大学 Method for gasifying pulverized coal by feeding pulverized coal with air and strongly rotating gasifying agents

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