CN202754967U - Double-layer fluidized bed gasifier - Google Patents
Double-layer fluidized bed gasifier Download PDFInfo
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- CN202754967U CN202754967U CN2012203604226U CN201220360422U CN202754967U CN 202754967 U CN202754967 U CN 202754967U CN 2012203604226 U CN2012203604226 U CN 2012203604226U CN 201220360422 U CN201220360422 U CN 201220360422U CN 202754967 U CN202754967 U CN 202754967U
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- 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
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- Crucibles And Fluidized-Bed Furnaces (AREA)
- Fluidized-Bed Combustion And Resonant Combustion (AREA)
Abstract
The utility model discloses a double-layer fluidized bed gasifier. The gasifier is provided with a gasifier body, a coal outlet is arranged on the top of the gasifier body, a cinder notch which is communicated with the interior of the gasifier body is arranged at the bottom of the gasifier body, a reaction room is arranged in the gasifier body, and a plurality of pulverized coal nozzles which are communicated with the interior of the reaction room are arranged on the gasifier body. The reaction room is fixed inside the gasifier body, a roughing slag pipe is arranged at the bottom of the reaction room, the shape of the roughing slag pipe is similar to that of a hopper-shaped slag basin, a gap is reserved between the roughing slag pipe and the hopper-shaped slag basin, and an opening of the bottom end stretches into the interior of the hopper-shaped slag basin. A ring-shaped space is formed between the outer wall of the reaction room and the inner wall of the gasifier body, the ring-shaped space is communicated with the interior of the gasifier body, and the inner wall and the outer wall of the ring-shaped space are water cooled walls. The double-layer fluidized bed gasifier is small in size, and capable of reducing thermal load of a follow-up exhaust-heat recovery boiler and recovering large amount of heat of gas. The gas is beneficial to gathering slag cinder and ash through washing chilling quench.
Description
Technical field
The utility model relates to In The Fluidized Bed Coal Gasification Technology, especially a kind of double-layer fluidized bed gasification furnace.
Background technology
Fluidized-bed gasification furnace is a kind of vapourizing furnace take dry pulverized coal as raw material, and coal gasification is the incomplete combustion of carbon in vaporized chemical oxygen, water vapour, its gasification reaction product effective constituent H
2, CO and CH
4, at fuel, chemical field quite widely application is arranged.The airflow bed gasification furnace technology is the current main-stream development trend, and industrialized gas-flow bed gasifying apparatus comprises shell dry coal dust gasification furnace, texaco coal-water slurry gasification stove and space flight stove etc. at present.No matter be dry coal powder gasification or coal water slurry gasification, all after coal gas of high temperature went out reaction chamber, additional one overlapped complicated cooling device to existing vapourizing furnace, such as cooled coal gas chilling device and water chilling device, reduce the temperature of coal gas and slag, thereby cause gasification furnace structure complicated, bulky.
The utility model content
The utility model provides a kind of double-layer fluidized bed gasification furnace, is used for overcoming defective of the prior art, simplifies gasification furnace structure, dwindles the vapourizing furnace volume.
The two-stage fluidized vapourizing furnace that the utility model provides has body of heater, this body of heater top is provided with gas exit, the bottom is provided with the funnel-form slag-drip opening with the body of heater internal communication, be provided with reaction chamber in the body of heater, body of heater is provided with a plurality of and the coal nozzle reaction chamber internal communication, it is inner that described reaction chamber hang on described body of heater, the reaction chamber bottom is provided with the lower slag pipe similar to described funnel-form slag-drip opening shape, leave the gap between this time slag pipe and the funnel-form slag-drip opening, and its bottom end opening stretches into funnel-form slag-drip opening inside; Form an annulus between described reacting outdoor wall and the inboard wall of furnace body, described annulus and body of heater internal communication, the inner and outer wall of described annulus is water wall.
Wherein, described reaction chamber diapire is made of the first water inlet header, and roof is made of the first water outlet header, and sidewall is arranged by the many straight tubes that are communicated with the first water inlet header and the first water outlet header and consisted of; Be arranged with the many water pipes that communicate with each other on the furnace body inside wall,
Be provided with the described annulus diapire that the second water inlet header body of being communicated with described water pipe consists of between sidewall of the furnace body and the reaction chamber sidewall, be provided with the second water outlet header body that is communicated with described water pipe between sidewall of the furnace body and the reaction chamber sidewall and consist of described annulus roof, described furnace body outer wall is provided with the first water inlet pipe, at least one and second intake header the second water inlet pipe, at least one the first rising pipe that is communicated with the first water outlet header and at least one the second rising pipe that is communicated with the second water outlet header that at least one and the first water inlet header are communicated with.
Further, consist of the straight tube of described reaction chamber sidewall and the water pipe that is located on the described furnace body inside wall and be finned tube.
The double-layer fluidized bed gasification furnace that the utility model provides, dry pulverized coal enter the inner and oxygen inner with it of reaction chamber through coal nozzle and react the H that reaction generates
2, CO and CH
4The lower slag pipe of passing through under the gas enters the funnel-form slag bath, at first washing Quench by the water of putting in advance slag bath cools off by the water wall of annulus again, gas exit through the body of heater top is discharged, reaction chamber and cooling room all are located at body of heater inside, the prior art volume reduces greatly relatively, and can reduce follow-up waste heat boiler thermal load, gas recovery part heat, coal gas is conducive to the capture of slag and flying dust through the washing Quench, the dregs that reaction the generates shape that is in a liquid state enters the funnel-form slag-drip opening along lower slag pipe, meets to be solid-state behind the water and to enter slag bath by the funnel-form slag-drip opening.
Description of drawings
The front view of the embodiment that Fig. 1 provides for the utility model.
Embodiment
As shown in Figure 1, the two-stage fluidized vapourizing furnace that the utility model provides has body of heater 1, body of heater 1 top is provided with gas exit 4, the bottom is provided with the funnel-form slag-drip opening 9 with body of heater 1 internal communication, funnel-form slag-drip opening 9 bottoms are provided with for the flange 13 that connects dreg removing system, be provided with reaction chamber 2 in the body of heater 1, body of heater 1 is provided with a plurality of and coal nozzles 5 reaction chamber 2 internal communication, reaction chamber 2 is fixed in body of heater 1 inside, reaction chamber 2 bottoms are provided with the lower slag pipe 10 similar to funnel-form slag-drip opening 9 shapes, leave the gap between this time slag pipe 10 and the funnel-form slag-drip opening 9, and its bottom end opening 11 stretches into funnel-form slag-drip opening 9 inside; Form an annulus 3 between reaction chamber 2 outer walls and body of heater 1 inwall, annulus 3 and body of heater 1 internal communication, the inner and outer wall of annulus 3 is water wall.Water wall refers to that pars intramuralis can pass into water coolant the medium in the annulus is cooled off.Coal nozzle 5 is two and is symmetrically arranged in furnace body outer wall among this embodiment.
Granularity sprays into reaction chamber 1 internal combustion less than the dry pulverized coal of 0.1mm and vaporized chemical oxygen and steam by two symmetrically arranged coal nozzles 5, coal feeding amount is 7.8t/h, flow of oxygen is 3450Nm3/h, and the superheated vapour consumption is 0.9t/h, and burner hearth is that the reaction chamber internal pressure is 0.6MPa.In the reaction chamber, the rapid generating gasification reaction of coal dust and vaporized chemical, the coal gas of generation is carrying slag and flying dust flows downward together, and at lower slag pipe 10 places by water 12 Quench in the funnel-form slag-drip opening 9, this moment, slag was frozen into solid-state slag particle, was lowered into slag bath in action of gravity, and finally discharged out of the furnace.Coal gas is overflowed from the water surface, and temperature is down to about 950 ℃, turns back upwards to enter the annulus cooling, and most of lime-ash that coal gas carries is removed.After the 3 water wall heat exchange of coal gas process annulus, arrive the gas exit 4 of roof of the furnace, temperature can be down to about 650 ℃.
Embodiment as above-described embodiment, the reaction chamber diapire is made of the first water inlet header 161, the reaction chamber roof is made of the first water outlet header 162, and reaction chamber sidewall 8 is arranged by the many straight tubes that are communicated with the first water inlet header 161 and the first water outlet header 162 and consisted of; Be arranged with the many water pipes that communicate with each other 7 on body of heater 1 inner side-wall, the straight tube that consists of reaction chamber sidewall 8 is finned tube with the water pipe 7 that is located on the furnace body inside wall;
Between sidewall of the furnace body 6 and reaction chamber sidewall 8, be provided with the second water inlet header body 141 that is communicated with water pipe 7, the second water inlet header body 141 consists of the annulus diapire, be provided with the second water outlet header body 172 that is communicated with water pipe 7 between sidewall of the furnace body 6 and the reaction chamber sidewall 8 and consist of the annulus roofs, furnace body outer wall is provided with the first water inlet pipe 171 that at least one and first header 161 of intaking is communicated with, at least one and second header 141 second water inlet pipes 151 of intaking, at least one the first rising pipe 172 that is communicated with the first water outlet header 162 and at least one the second rising pipe 152 that is communicated with the second water outlet header 142.
To 161 water inlets of the first water inlet header, water coolant enters the straight tube that consists of reaction chamber sidewall 8 through the first water inlet header 161 by the first water inlet pipe 171, and the first water outlet header 162 is finished the cooling to the reaction chamber water wall by 172 water outlets of the first rising pipe; Intake to the second water inlet header 141 by the second water inlet pipe 151, water coolant enters in the second water outlet header 142 from water pipe 7 bottoms that consist of the furnace body inside water wall, by 152 water outlets of the first rising pipe, finish the cooling to the reaction chamber water wall through the second water outlet header 142.Coal dust is in coal nozzle sprays into reaction chamber, because the first water outlet header 162 is with reaction chamber 1 top seal, therefore can only flow downward at the gas mixtures such as coal gas that generate after the reaction chamber internal combustion and enter in the lower slag pipe 10 through the first outlet of intaking header 161, upwards flow in the annulus 3 from bottom of furnace body after the water Quench in funnel-form slag-drip opening 9 again and cool off, consist of the second water inlet header of annulus diapire and the second water outlet header of formation annulus roof and be equipped with the outlet of circulating for coal gas, arrive at last gas exit 4.The first water inlet header, the second water inlet header and the second water outlet header all can adopt bending to be circular pipe among this embodiment, and the cross section of pipe can be circular or square, does not limit at this.
It should be noted that at last: above each embodiment is not intended to limit only in order to technical scheme of the present invention to be described; Although with reference to aforementioned each embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps some or all of technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the scope of various embodiments of the present invention technical scheme.
Claims (3)
1. double-layer fluidized bed gasification furnace, this vapourizing furnace has body of heater, this body of heater top is provided with gas exit, the bottom is provided with the funnel-form slag-drip opening with the body of heater internal communication, be provided with reaction chamber in the body of heater, body of heater is provided with a plurality of and the coal nozzle reaction chamber internal communication, it is characterized in that, it is inner that described reaction chamber is fixed in described body of heater, the reaction chamber bottom is provided with the lower slag pipe similar to described funnel-form slag-drip opening shape, leave the gap between this time slag pipe and the funnel-form slag-drip opening, and its bottom end opening stretches into funnel-form slag-drip opening inside; Form an annulus between described reacting outdoor wall and the inboard wall of furnace body, described annulus and body of heater internal communication, the inner and outer wall of described annulus is water wall.
2. double-layer fluidized bed gasification furnace according to claim 1, it is characterized in that, described reaction chamber diapire is made of the first water inlet header, and roof is made of the first water outlet header, and sidewall is arranged by the many straight tubes that are communicated with the first water inlet header and the first water outlet header and consisted of; Be arranged with the many water pipes that communicate with each other on the furnace body inside wall, be provided with the described annulus diapire that the second water inlet header of being communicated with described water pipe consists of between sidewall of the furnace body and the reaction chamber sidewall, be provided with the second water outlet header that is communicated with described water pipe between sidewall of the furnace body and the reaction chamber sidewall and consist of described annulus roof, described furnace body outer wall is provided with the first water inlet pipe that at least one and the first water inlet header are communicated with, at least one and second header the second water inlet pipe of intaking, at least one the first rising pipe that is communicated with the first water outlet header and at least one the second rising pipe that is communicated with the second water outlet header.
3. double-layer fluidized bed gasification furnace according to claim 2 is characterized in that, the straight tube that consists of described reaction chamber sidewall is finned tube with the water pipe that is located on the described furnace body inside wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203604226U CN202754967U (en) | 2012-07-24 | 2012-07-24 | Double-layer fluidized bed gasifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203604226U CN202754967U (en) | 2012-07-24 | 2012-07-24 | Double-layer fluidized bed gasifier |
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| Publication Number | Publication Date |
|---|---|
| CN202754967U true CN202754967U (en) | 2013-02-27 |
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ID=47734159
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012203604226U Expired - Fee Related CN202754967U (en) | 2012-07-24 | 2012-07-24 | Double-layer fluidized bed gasifier |
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|---|---|
| CN (1) | CN202754967U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103160329A (en) * | 2013-03-22 | 2013-06-19 | 东方电气集团东方锅炉股份有限公司 | Coal water slurry water wall gasification furnace of waste heat boiler process |
| CN106191358A (en) * | 2016-07-11 | 2016-12-07 | 安徽工业大学 | A kind of pressure adjustable type fluidized reaction bed experimental provision |
| CN115305119A (en) * | 2021-05-06 | 2022-11-08 | 卢玉升 | Radial gasification furnace |
-
2012
- 2012-07-24 CN CN2012203604226U patent/CN202754967U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103160329A (en) * | 2013-03-22 | 2013-06-19 | 东方电气集团东方锅炉股份有限公司 | Coal water slurry water wall gasification furnace of waste heat boiler process |
| CN106191358A (en) * | 2016-07-11 | 2016-12-07 | 安徽工业大学 | A kind of pressure adjustable type fluidized reaction bed experimental provision |
| CN115305119A (en) * | 2021-05-06 | 2022-11-08 | 卢玉升 | Radial gasification furnace |
| CN115305119B (en) * | 2021-05-06 | 2024-05-14 | 卢玉升 | Radial gasification furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: KEDA CLEAN ENERGY (MA'ANSHAN) CO., LTD. Free format text: FORMER NAME: MA'ANSHAN KEDA CLEAN ENERGY CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 243041 Anhui city in Ma'anshan province north of the revitalization of economic and Technological Development Zone, Road No. 555 Patentee after: KEDA INDUSTRIAL CO., LTD. Address before: 243041 Anhui city in Ma'anshan province north of the revitalization of economic and Technological Development Zone, Road No. 555 Patentee before: Ma'anshan Keda Clean Energy Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130227 Termination date: 20170724 |
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| CF01 | Termination of patent right due to non-payment of annual fee |