CN204676041U - A kind of moving-bed gasification stove - Google Patents
A kind of moving-bed gasification stove Download PDFInfo
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- CN204676041U CN204676041U CN201520230600.7U CN201520230600U CN204676041U CN 204676041 U CN204676041 U CN 204676041U CN 201520230600 U CN201520230600 U CN 201520230600U CN 204676041 U CN204676041 U CN 204676041U
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Abstract
The utility model provides a kind of moving-bed gasification stove, for the gasification of fuel, comprises body of heater, and the interior of body of heater is provided with the water wall of negotiable water coolant, to cool the high temperature that the gasification of body of heater inner fuel produces; Be formed with cavity between the sidewall of body of heater and water wall, in cavity, can rare gas element be filled, to prevent furnace body temperature too high.This moving-bed gasification furnace interior is provided with water wall, to protect the body of heater of moving-bed gasification stove, prevents the too high damage causing body of heater of temperature.
Description
Technical field
The utility model relates to a kind of vapourizing furnace, particularly relates to a kind of moving-bed gasification stove of water cooled wall type.
Background technology
Coal is produced in the process of synthetic gas in gasification, and vapourizing furnace and gasification process are gasification key links.So far, industrialized vapourizing furnace can be divided into by class: moving-bed, air flow bed and fluidized-bed process.Wherein moving-bed refers to that gasified raw material and gasified oxygen are with stepping into stove, but gasified raw material particle speed of relative movement slowly, and such moving-bed gasification stove representative has: traditional lurgi gasifier, BGL vapourizing furnace and YM cloud dimension stove.
Wherein, lurgi gasifier adopts water jacket cooling in body of heater, oven for discharging solid ash, and shortcoming is that gasification energy degree is low, and water jacket easily burns, and gas product effectively forms low (CO+H
2≤ 60%mol); BGL vapourizing furnace is the improvement type of furnace on lurgi gasifier basis, and slag tap is introduced Proper Design, effective raising gasification intensity and efficiency.
Disclose the patent of invention that application number is CN201310411452.4 in Chinese patent, which disclose a kind of pressurization static bed slag gasification furnace, this vapourizing furnace comprises coal lock, for getting coal to pressurized gasification container coal from coal bunker off and on; Transitional storehouse, the coal in being convenient to that coal is locked joins pressurized gasification container; Pressurized gasification container, utilizes the vaporized chemical from nozzle to be burnt and gasification by carbonic solid fuels under certain temperature and pressure; Connecting short section, for gasification operations such as deslagging, Quench, emptying; Shock chamber, for Quench, cooling slag; And slag lock, discharged out-of-bounds by cone valve for store glass matter solid impurity particle.The working method of vapourizing furnace comprises adjustment raw gas temperature out; Solid carbonaceous fuels is gasified; The gasification load of adjustment vapourizing furnace; Control the working pressure of vapourizing furnace; The pressure reduction of control linkage pipe nipple and vapourizing furnace, the deslagging of slag-drip opening and hold in the palm slag operation; Quench and cooling slag; The water yield of controlled chilling room is to remove the heat of slag; Store solid impurity particle and discharged out-of-bounds.
But in practice; diameter is the type of furnace day throwing of 4500mm is be 900 ~ 1050 tons (dry bases); other type of furnace gasification intensity is still on the low side relatively; major cause is that this type of furnace adopts water jacket protection external furnace body; liner is the refractory brick of 220mm thickness; only there is 3600mm in its effective stove footpath, and between inner appearance, utilization ratio is low, to such an extent as to coal feeding amount is limited.
The patent of invention that the patent No. is CN102041098B is disclosed in Chinese patent, a kind of fixed bed slag gasification furnace is disclosed in this patent, in this kind of vapourizing furnace, compound Lining compound Lining comprises 4 layers of configuration such as refractory brick, and its structure is too complicated, and is unfavorable for improving gasification intensity.
Summary of the invention
In order to overcome the above problems, the utility model provides a kind of moving-bed gasification stove, and this moving-bed gasification furnace interior is provided with water wall, to protect the body of heater of moving-bed gasification stove, prevents the too high damage causing body of heater of temperature.
To achieve these goals, the utility model provides a kind of moving-bed gasification stove, for the gasification of fuel, comprises body of heater, and the interior of body of heater is provided with the water wall of negotiable water coolant, to cool the high temperature that the gasification of body of heater inner fuel produces; Be formed with cavity between the sidewall of body of heater and water wall, in cavity, can rare gas element be filled, to prevent furnace body temperature too high.
As further optimization of the present utility model, water wall comprises multiple water cooled pipelines of negotiable water coolant, and connects the linker of adjacent water cooled pipeline, linker is provided with the thermo detector for testing water-cooled wall temperature.
As further optimization of the present utility model, the top of body of heater is provided with the multiple opening for feeds for transfer the fuel, the top of body of heater is provided with the air outlet for discharging the rear synthetic gas of gasification, the bottom of body of heater is provided with the slag-drip opening for discharging the rear residue of gasification, and opening for feed, air outlet and slag-drip opening all stretch to moving-bed gasification furnace interior from body of heater outside through body of heater and water wall.
As further optimization of the present utility model, the below of sidewall of the furnace body is evenly equipped with multiple the first burner passing into vaporized chemical, the top of the first burner is provided with multiple secondary nozzle passing into oxygenant and carbonaceous material, and twice charging can make the uniform distribution of temperature field of furnace interior.
As further optimization of the present utility model, the first burner is 2-8, and the axis of each first burner and the axis angle of body of heater are 45 °-90 °, and secondary burner is 2-6, and the axis of each secondary burner and the axis angle of body of heater are 15 °-30 °.
As further optimization of the present utility model, the bottom of slag-drip opening is provided with the water-bath room that hot-engine sludge temperature can be made to reduce, and water-bath indoor can load water coolant; The bottom of water-bath room is provided with the solid slag outlet for discharging residue after cooling, is provided with can control the slag that residue discharges and lock between the bottom of water-bath room and solid slag export.
As further optimization of the present utility model, the inside of body of heater is provided with the thruster accelerating fuel and vaporized chemical and react, thruster comprises drive unit, drive unit is arranged on inside, air outlet, the clutch end connection for transmission device of drive unit, transmission mechanism is provided with spiral disc, drive unit can drive spiral disc to rotate.
As further optimization of the present utility model, thruster is provided with cooling protection device, too high to prevent thruster to be heated.
As further optimization of the present utility model, the upper end of water wall is provided with upper header, and lower end is provided with lower collecting box, by upper header and lower collecting box to cooling water supply in water wall.
As further optimization of the present utility model, the outer setting of secondary nozzle has the cooling heat exchange protector for preventing nozzle temperature too high.
The advantage that the utility model has is,
(1) this moving-bed gasification furnace interior is provided with water wall, and this water wall is the water cooled pipeline arranged along inboard wall of furnace body, to protect the body of heater of moving-bed gasification stove, prevents the too high damage causing body of heater of temperature;
(2) this moving-bed gasification stove is classification charging, and classification charging contributes to the thermo parameters method improving combustion chamber, improves the stability of slag tap, reduces oxygen consumption.
Accompanying drawing explanation
Fig. 1 is the structural representation of moving-bed gasification stove in the utility model;
Fig. 2 is the partial enlarged drawing of water wall;
Fig. 3 is the vertical view of Fig. 2 water wall.
Embodiment
Below, by exemplary embodiment, the utility model is specifically described.But should be appreciated that element, structure and feature in an embodiment also can be attached in other embodiments valuably when not describing further.
See Fig. 1-Fig. 3, as Figure 1-3, moving-bed gasification stove of the present utility model, for the gasification of fuel, comprises body of heater 1, and the interior of body of heater 1 is provided with the water wall 2 of negotiable water coolant, to cool the high temperature that the gasification of body of heater 1 inner fuel produces; Water wall 2 comprises multiple water cooled pipelines 21 of negotiable water coolant, and connect the linker 22 of adjacent water cooled pipeline, linker 22 preferably connects fin, this connection fin is adopt and the pipe outer wall of the welding wire two-sided welding of water cooled pipeline same material at adjacent water cooled pipeline, by the width of welding wire, adjustable pipe quantity, is beneficial to regulate heat-transfer surface; Linker 22 being provided with the thermo detector for testing water-cooled wall temperature, the temperature shown by thermo detector, the water coolant in water wall can be regulated in real time; Be formed with cavity 13 between the sidewall of body of heater 1 and water wall 2, the rare gas element of lesser temps can be filled in cavity 13, such as N
2, CO
2deng, carrying gas if occur in water wall cavity, the furnace body outer wall not overtemperature of inertia protection gas shielded vapourizing furnace, validity can keeping away the generating gasification stove accident because locally there being temperature, thus prevent body of heater 1 temperature too high.
In order to make the cooling water circulation replacing in water wall, the upper end of water wall 2 is provided with upper header, and lower end is provided with lower collecting box, by upper header and lower collecting box to cooling water supply in water wall.
With further reference to Fig. 1, the top of body of heater 1 is provided with in the multiple opening for feeds 5, Fig. 1 for transfer the fuel and is set to two, is separately positioned on the both sides of upper of furnace body, and this opening for feed 5 isoplanar is arranged, to make the fuel height that enters consistent; The top of body of heater 1 is provided with the air outlet 6 for discharging the rear synthetic gas of gasification, and air outlet 6 is arranged in body of heater top and is conducive to furnace gas distribution, prevents from partially burning and gas channel.
The bottom of body of heater 1 is provided with the slag-drip opening 8 for discharging the rear residue of gasification, and opening for feed 5, air outlet 6 and slag-drip opening 8 all stretch to moving-bed gasification furnace interior from body of heater 1 outside through body of heater 1 and water wall 2; The below of body of heater 1 sidewall is evenly equipped with multiple the first burner 3 passing into vaporized chemical; the top of the first burner 3 is provided with multiple secondary nozzle 4 passing into oxygenant and carbonaceous material; the outer setting of secondary nozzle 4 has the cooling heat exchange protector for preventing nozzle temperature too high; twice charging can make the uniform distribution of temperature field of body of heater 1 inside; improve gasifier operation load; under equivalent devices size, more carbonaceous materials can be processed.Meanwhile, point grading oxygen can be avoided concentrating the issuable local temperature into oxygen too high and burn out vapourizing furnace lining and water wall, and bottom melt the continuous excite state deslagging that welding zone temperature can keep stable.
Above-mentioned first burner 3 is preferably 2-8, each axis of the first burner 3 and the axis angle of body of heater 1 are preferably 45 °-90 °, secondary burner 4 is preferably 2-6, the axis of each secondary burner 4 and the axis angle of body of heater 1 are 15 °-30 °, carbonaceous material and oxygen or pure hydrogen (no oxygen) is passed in this secondary nozzle, under high-temperature gas up after lower volume internal-combustion exists, carbonaceous material gasification or reaction Oxygenation produce dry gas (CH
4), be specially adapted to the project needs of coal preparing natural gas.As a kind of embodiment, the carbonaceous material that described secondary burner sprays into accounts for gasifier operation load 0 ~ 25%, and the oxygenant that secondary feeds sprays into all accounts for vaporized chemical 0 ~ 30% needed for gasifier operation.
In the deslagging of bottom of furnace body, the bottom of slag-drip opening 8 is provided with the water-bath room 10 that hot-engine sludge temperature can be made to reduce, and can load water coolant in water-bath room 10; The bottom of water-bath room 10 is provided with the solid slag outlet 9 for discharging residue after cooling, and the bottom of water-bath room 10 and solid slag export to be provided with between 9 and can control the slag that residue discharges and lock.
In order to the fuel distribution entering into furnace interior can be made even, the thruster 7 accelerating fuel and vaporized chemical and react is provided with in the inside of body of heater 1, thruster 2 comprises drive unit, drive unit is arranged on inside, air outlet, the clutch end connection for transmission device of drive unit, transmission mechanism is provided with spiral disc, drive unit can drive spiral disc to rotate; Spiral disc is-135 ° of angles at 45 ° with the axis of transmission mechanism preferably, and transmission mechanism has speed change gear, can according to the velocity of rotation of gasification Load Regulation spiral disc.As a kind of embodiment, above-mentioned thruster 2 also can be provided with cooling protection device, too high to prevent thruster to be heated.
Be appreciated that the utility model is described by some embodiments, those skilled in the art know, when not departing from spirit and scope of the present utility model, can carry out various change or equivalence replacement to these characteristic sum embodiments.In addition, under instruction of the present utility model, can modify to adapt to concrete situation and material to these characteristic sum embodiments and spirit and scope of the present utility model can not be departed from.Therefore, the utility model is by the restriction of specific embodiment disclosed herein, and the embodiment in the right of all the application of falling into all belongs in the scope that the utility model protects.
Claims (10)
1. a moving-bed gasification stove, for the gasification of fuel, it is characterized in that, comprise body of heater (1), the interior of body of heater (1) is provided with the water wall (2) of negotiable water coolant, to cool the high temperature that the gasification of body of heater (1) inner fuel produces; Be formed with cavity (13) between the sidewall of body of heater (1) and water wall (2), in cavity (13), can rare gas element be filled, to prevent body of heater (1) temperature too high.
2. moving-bed gasification stove according to claim 1, it is characterized in that, water wall (2) comprises multiple water cooled pipelines (21) of negotiable water coolant, and connect the linker (22) of adjacent water cooled pipeline, linker (22) is provided with the thermo detector for testing water-cooled wall temperature.
3. moving-bed gasification stove according to claim 1, it is characterized in that, the top of body of heater (1) is provided with the multiple opening for feeds (5) for transfer the fuel, the top of body of heater (1) is provided with the air outlet (6) for discharging the rear synthetic gas of gasification, the bottom of body of heater (1) is provided with the slag-drip opening (8) for discharging the rear residue of gasification, and opening for feed (5), air outlet (6) and slag-drip opening (8) all stretch to moving-bed gasification furnace interior from body of heater (1) outside through body of heater (1) and water wall (2).
4. moving-bed gasification stove according to claim 1, it is characterized in that, the below of body of heater (1) sidewall is evenly equipped with multiple the first burner (3) passing into vaporized chemical, the top of the first burner (3) is provided with multiple secondary nozzle (4) passing into oxygenant and carbonaceous material, the uniform distribution of temperature field that twice charging can make body of heater (1) inner.
5. moving-bed gasification stove according to claim 4, it is characterized in that, first burner (3) is 2-8, the axis of each first burner (3) and the axis angle of body of heater (1) are 45 °-90 °, secondary burner (4) is 2-6, and the axis of each secondary burner (4) and the axis angle of body of heater (1) are 15 °-30 °.
6. moving-bed gasification stove according to claim 3, it is characterized in that, the bottom of slag-drip opening (8) is provided with the water-bath room (10) that hot-engine sludge temperature can be made to reduce, and can load water coolant in water-bath room (10); The bottom of water-bath room (10) is provided with solid slag outlet (9) for discharging residue after cooling, the bottom of water-bath room (10) with consolidate slag and export to be provided with between (9) and the slag that residue discharges can be controlled lock.
7. moving-bed gasification stove according to claim 3, it is characterized in that, the inside of body of heater (1) is provided with the thruster (7) accelerating fuel and vaporized chemical and react, thruster (2) comprises drive unit, drive unit is arranged on inside, air outlet, the clutch end connection for transmission device of drive unit, transmission mechanism is provided with spiral disc, and drive unit can drive spiral disc to rotate.
8. moving-bed gasification stove according to claim 7, it is characterized in that, (2) are provided with cooling protection device with thruster, too high to prevent thruster to be heated.
9. moving-bed gasification stove according to claim 1, it is characterized in that, the upper end of water wall (2) is provided with upper header, and lower end is provided with lower collecting box, by upper header and lower collecting box to cooling water supply in water wall.
10. moving-bed gasification stove according to claim 4, it is characterized in that, the outer setting of secondary nozzle (4) has the cooling heat exchange protector for preventing nozzle temperature too high.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520230600.7U CN204676041U (en) | 2015-03-30 | 2015-04-16 | A kind of moving-bed gasification stove |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2015201846436 | 2015-03-30 | ||
| CN201520184643 | 2015-03-30 | ||
| CN201520230600.7U CN204676041U (en) | 2015-03-30 | 2015-04-16 | A kind of moving-bed gasification stove |
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| CN204676041U true CN204676041U (en) | 2015-09-30 |
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| CN201520230600.7U Active CN204676041U (en) | 2015-03-30 | 2015-04-16 | A kind of moving-bed gasification stove |
| CN201510179851.1A Active CN104946310B (en) | 2015-03-30 | 2015-04-16 | A kind of moving bed gasification stove |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108165315A (en) * | 2018-02-11 | 2018-06-15 | 煤炭科学技术研究院有限公司 | A kind of two sections of fixed bed slag tap gasification furnaces of full water cooling formula |
| CN108165312A (en) * | 2018-02-11 | 2018-06-15 | 煤炭科学技术研究院有限公司 | A kind of full water cooling formula fixed bed slag tap gasification installation |
| CN114719241B (en) * | 2022-04-24 | 2024-04-09 | 西安热工研究院有限公司 | Boiler with heat exchange cover, use method of boiler and thermal power unit |
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| CN201264986Y (en) * | 2008-06-25 | 2009-07-01 | 覃咏麟 | Gasification furnace air-changing device |
| CN101508915B (en) * | 2009-03-17 | 2012-09-05 | 惠生工程（中国）有限公司 | Gasifying device for liquid fuel or solid fuel aqueous slurry |
| CN102703129A (en) * | 2012-06-04 | 2012-10-03 | 上海锅炉厂有限公司 | Staged-pressurization gasification reaction device for dry pulverized coal and gasification method thereof |
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| CN104946310B (en) | 2018-08-31 |
| CN104946310A (en) | 2015-09-30 |
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