CN201634638U - Gasification furnace of spiral-flow type molten pool - Google Patents
Gasification furnace of spiral-flow type molten pool Download PDFInfo
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- CN201634638U CN201634638U CN2010200033021U CN201020003302U CN201634638U CN 201634638 U CN201634638 U CN 201634638U CN 2010200033021 U CN2010200033021 U CN 2010200033021U CN 201020003302 U CN201020003302 U CN 201020003302U CN 201634638 U CN201634638 U CN 201634638U
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Abstract
The utility model discloses a gasification furnace of a spiral-flow type molten pool. The gasification furnace comprises a cylindrical furnace body provided with a cylindrical water cooling jacket with small top and big bottom variable diameters at the periphery, an expansion joint is connected to an inner cylinder at the lower part of the water cooling jacket, a coal-locking bucket is installed at the top of a furnace body, a coal distributor with the water cooling jacket is arranged at the upside of a hearth, annular spaces are left between the inner wall at the upside of the hearth and the coal distributor, and one side of the furnace body is provided with a coal gas outlet; an oxidization molten pool at the lower part of the furnace body is provided with an oxygen nozzle; the hearth is provided with a reducing segment, a drying segment and a dry distillation segment; a steam injector is arranged above the oxidization molten pool; a deslagging overflow port of the furnace body is arranged in the center of the oxidization molten pool and higher than the bottom of the pool, and the bottom of the deslagging overflow port is connected with a granulated slag pin bucket; and the side wall of the oxidization molten pool is provided with a fine coal inlet. In the utility model, molten liquid coal is rotated at high speed by using the oxygen ejected by a high speed tangent line, and oxidation reaction is strengthened; block coals, granule coals, small coals and sulfur coals can be utilized, the gasification intensity is strong, and the gas production rate is high; oxygenated fuels are completely combusted in the spiral-flow molten pool, the furnace temperature is high and the active ingredient content of the coal gas is high.
Description
Technical field
The utility model relates to spiral-flow melting pond gasifier, and it is applied to inflammable gass such as coal hydrogen carbon monoxide gas, further is processed as products such as synthetic ammonia, methyl alcohol, hydrogen peroxide with these gases, also available it the artificial Sweet natural gas of coal conversion.
Background technology
Carbon in the coal runs into air (oxygen), and following oxidation (burning) thermopositive reaction takes place:
C+O
2＝CO
2+Q……(1)
Emit heat and be stored in the charcoal layer, in the charcoal layer, add water vapor, following reduction thermo-negative reaction can take place:
C+H
2O＝CO+H
2-Q……(2)
Above-mentioned reaction (1) is a complete oxidation, as the oxygen supply deficiency, the incomplete oxidation reaction can take place:
2C+O
2＝2CO+Q
1……(3)
Reaction (3) thermal discharge lacks than reaction (1) thermal discharge.
C+CO
2＝2CO-Q……(4)
Reaction (4) also is the reduction thermo-negative reaction, the CO that reaction (1) generates
2Be reduced to CO.
CO and H
2Be available gas, heat supply is many more, temperature is high more, and reaction (2) Shaoxing opera is strong, generates CO+H
2Many more.
Generate more CO+H
2, its most important condition is that heat supplied is many, promptly at first will add fast response (1).With regard to reaction mechanism, reaction (2) belongs to diffusion control, i.e. reaction is decided by whether oxygen can be diffused into carbon surface very soon, carries out chemical reaction on the surface, the CO+H that the reaction back generates
2Whether can be diffused into soon in the space (gas phase) and go.Increase the contact area of gas and coal, accelerate the diffusion of gas, just accelerate whole oxidizing reaction, further created competent thermal source for reaction (2), reaction (2) also can be accelerated, also having an essential condition is temperature, temperature is high more, and reaction (2) is fast more, CO+H
2Just generate more.
Simple vapourizing furnace is a round shape, adds charcoal from furnace roof, and furnace bottom adds air and water vapor, and reaction generates H
2, CO, CO
2(being called water-gas or crude synthesis gas).Come out of the stove by stove top, reaction back carbon content breeze (title slag) seldom discharges out of the furnace from the bottom.Charcoal from top to bottom moves, and gas is by rising both countercurrent flows down.
The gasification that adds air is intermittently carried out, and promptly adds air earlier, carries out exothermic oxidation reaction, generates CO
2Emit heat, hot gas is toward rising, and heat is stored in the charcoal layer, and reaction generates gas blowing air.Blowing air mainly contains CO
2, be discharged in the atmosphere and go, stop to add air then, add steam, absorb the heat in the charcoal layer, and react with carbon, generate CO, H
2, so circulation is carried out, and this is an intermittent gasification, as " UGI " stove.
Mix the pure oxygen that oxygen is called oxygen enrichment (air of content more than 50%) or makes with air separation facility in air, if oxygen and vapor mixing add vapourizing furnace, gasification is controlled at below 1300 ℃ with the carbon temperature of reaction, generates H continuously
2, CO, rise from the outlet of furnace side, top, slag discharges out of the furnace with solid-state, this is a lump coal dry ash extraction continuous gasification, as " Lurgi " stove.
Continuous gasification go into the stove coal, except with the piece charcoal, also can wear into fine coal, usually coal slaking to＜0.1mm, spray into vapourizing furnace with oxygen, mixture of steam, carry out oxidation and reduction reaction immediately, generation high temperature more than 1400 ℃ generates H simultaneously
2, CO, CO
2, with fine coal from top to bottom and stream motion, carbon reaction gasification in the coal, the cinder that can not react gasification is melted, melts descends, by water broken be granular, intermittently discharge; There is the part melts to be taken out of outside the stove, in the time of the water cooling gas,, and separates at separator with the cold one-tenth of melts ash carefully by high-temperature gas.This vapourizing furnace claims air-flow dry powder stove, as " Shell " stove.
To make coal powder density be 60% coal water slurry if fine coal is added water, pumps up and pure oxygen sprays in the vapourizing furnace, and oxygen is emitted a large amount of heats with the carbon reaction, and temperature is evaporated to steam to water simultaneously up to more than 1400 ℃, and steam reacts generation CO+H with carbon
2, cinder is also melted, and process is similar to air-flow dry powder stove thereafter; This vapourizing furnace is called coal slurry gasifier, as " TEXACO " stove.
The utility model content
The technical problems to be solved in the utility model is, defective at the prior art existence, a kind of spiral-flow melting pond gasifier is proposed, be provided with the fusion pool of a constant volume at furnace bottom, utilize the oxygen of high speed tangent line ejection to make fused solution coal high speed rotating, gas-to-liquid contact surface fast updating is strengthened oxidizing reaction greatly; It can utilize the coal and the particle diameter≤3.5mm fine coal of various granularities, can save coal processing investment and tooling cost; Its gasification intensity is big, the gas production rate height; Oxygenated fuel is carried out perfect combustion in the fusion pool of eddy flow, the furnace temperature height, and coal gas active constituent content height, methane content is low, and the coal gas tapping temperature is the end of than, than oxygen consumption and all lower than coal consumption, steam decomposition rate height; Also can self-produced middle pressure steam; The gasification system facility investment is few; No waste gas, flushing cinder water can be recycled, and the vitreous state slag is a fine building village material. environmental friendliness.
The technical solution of the utility model is, described spiral-flow melting pond gasifier comprises that periphery is provided with the cylindrical furnace of water-cooling jacket, water-cooling jacket is the big reducing round shape in little bottom, top, big footpath, bottom inner core is connected to 1～3 in order to eliminate the expansion joint of thermal stresses that temperature variation produces, coal lock hopper and following lock coal bunker are equipped with in the body of heater top, the upper furnace of body of heater also is equipped with the coal sparger of being with water-cooling jacket below following coal lock hopper, it is characterized in that, between the upper furnace inwall of body of heater and the water-cooling jacket of described coal sparger annular space is arranged, body of heater one side is provided with the gas exit that is communicated with this annular space; The bottom of body of heater is that oxidation fusion pond and this oxidation fusion pond are provided with relative oxidation fusion pond and are at least one pair of oxygen jet tangential and that be symmetrically distributed; The burner hearth that rise from the bottom to top at top, described oxidation fusion pond is followed successively by reduction section, dryer section, retort section, and retort section is positioned at described coal sparger below; Top, oxidation fusion pond is provided with steam injector; The overflow port of slagging tap of described body of heater is located in the oxidation fusion pond and is higher than this bottom, oxidation fusion pond, and the overflow port bottom of slagging tap is connected to top water disintegrating slag pin bucket and bottom water slag pin bucket; Oxidation fusion pond sidewall is provided with fines and sends into mouth.
Below make and further specifying.
Referring to Fig. 1, spiral-flow melting pond gasifier of the present utility model comprises that periphery is provided with the cylindrical furnace 4 of water-cooling jacket 6, water-cooling jacket 6 is the big reducing round shape in little bottom, top, big footpath, bottom inner core is connected to 1～3 in order to eliminate the expansion joint 7 of thermal stresses that temperature variation produces, coal lock hopper 1 and following lock coal bunker 2 are equipped with in body of heater 4 tops, the upper furnace of body of heater 4 also is equipped with the coal sparger 20 of band water-cooling jacket 3 in following coal lock hopper 2 belows, it is characterized in that, between the upper furnace inwall of body of heater 4 and the water-cooling jacket 3 of described coal sparger 20 annular space 22 is arranged, body of heater 4 one sides are provided with the gas exit 5 that is communicated with this annular space 22; The bottom of body of heater 4 is that oxidation fusion pond 11 and this oxidation fusion pond 11 are provided with relative oxidation fusion pond 11 and are at least one pair of oxygen jet 9 tangential and that be symmetrically distributed; The burner hearth that rise from the bottom to top at 11 tops, described oxidation fusion pond is followed successively by reduction section 17, dryer section 18, retort section 19, and retort section 19 is positioned at described coal sparger 20 belows; 11 tops, oxidation fusion pond are provided with steam injector 8; The overflow port 15 of slagging tap of described body of heater 4 is located in the oxidation fusion pond 11 and is higher than this bottom, oxidation fusion pond, and overflow port 15 bottoms of slagging tap are connected to top water disintegrating slag pin bucket 13 and bottom water slag pin bucket 14; Oxidation fusion pond 11 sidewalls are provided with fines and send into mouth.
It is the tangential nozzle of tangent line ejection that described oxygen jet 9 is arranged horizontally and makes the cylindrical relatively oxidation pond cavity of ejecta; And relative oxidation pond is symmetrical arranged one to four to (two to eight) described tangential nozzle, referring to Fig. 2 on same horizontal plane.Described oxygen jet 9 for horizontal tangential arrange a pair of to four pairs, can make oxygen with higher speed from oxygen jet 9 ejections and cause that melts form high speed rotary motions in the oxidation fusion pond 11.
The fines of described oxidation fusion pond 11 sidewalls is sent into mouth and is connected to fines downtake 21, and these fines downtake 21 upper port are connected to lock hopper 23 and fines upper lock hopper 24 under the fines; Spiral propeller 16 is housed in the fines downtake 21.
The described overflow port 15 of slagging tap is located at 11 centers, oxidation fusion pond and is higher than this bottom, oxidation fusion pond 300mm～400mm, make oxidation fusion pond 11 form the liquid slag bath of the high 300mm～400mm of liquid slag when gasifier operation, slag flows down from the overflow port 15 of slagging tap at described center.
During gasifier operation of the present utility model, be shaped as 〉=patch fuel of 3.5mm adds the stove from furnace roof through last coal lock hopper 1, the Paniculate coal of particle diameter≤3.5mm and smear coal, lock hopper 23, fines downtake 21 under fines upper lock hopper 24 and fines are sent into a mouthful adding oxidation fusion pond 11 from one or two fines of described oxidation fusion pond 11 sidewalls; Paniculate coal at particle diameter≤3.5mm adds a certain proportion of ferric oxide, calcium oxide with smearing in the coal, make cinder melting yield temperature (FT) be reduced to 1250 ℃～1350 ℃, and it is well liquid to form flowing property; Heat is emitted in the reaction of oxygen and carbon in the described oxidation fusion pond 11, and solid fuel is heated melting for liquid, and is formed with the oxidation sludge melt pool of certain liquid level.
When oxidation fusion pond, described body of heater 4 bottom 11 was moved, melts was met water-cooling jacket 6 coolings and is formed one deck annular cured article (i.e. flux shielding layer 10 is melted in curing), sticks on water-cooling jacket 6 walls, plays the effect of resistance to high temperature corrosion protection water-cooling jacket 6.
In the spiral-flow melting pond gasifier of the present utility model, the annular space 22 between the upper furnace inwall of body water-cooling chuck 6 and the cylinder water-cooling chuck 3 of described coal sparger leads to the passage of gas exit 5 for coal gas.The effect of water-cooling jacket 6 is water flowing coolings, makes it not to be subjected to high temperature to damage.The effect of coal sparger is to make in the coal of the adding energy uniform distribution stove, can not pile up very high in the centre, circumference is very low, and prevented around relatively large the falling within, in the middle of granule, fragment fall within, prevented that air communication is out-of-date, everywhere the resistance difference, gas distribution is irregular, makes the gasification section temperature high, low on one side on one side.
In the spiral-flow melting pond gasifier of the present utility model, drum 25 is set outside body of heater 4, the water-cooling jacket 6 of it and body of heater 4 forms water circulation systems; Produce middle pressure steam and draw from drum 25 tops, make up water adds drum 25, feeds downtake and adds to water-cooling jacket 6, and vapor pressure should be greater than vapor pressure in the stove, the coal gas injury accident takes place to prevent that coal gas from bleeding in the steam.
The know-why of spiral-flow melting pond gasifier of the present utility model one of is to be, as the coal of one of reactant, divide two-way or three tunnel to go into stove: main road adds from the body of heater top, and it is shaped as broken coal and the lump coal of 3.5mm to 50mm; Another road or two-way are the fine coal (+flux) of particle diameter≤3.5mm, directly are added to middle part, oxidation fusion pond from high-order coal lock hopper by downtake, carry out the oxidizing fire reaction immediately.From the coal of mining, bulk, little granular and powdery are always arranged.Existing air-flowing type dry powder vapourizing furnace, coal slurry gasifier all will with block, Paniculate coal is broken, grinds to form＜0.1mm fine coal, its system of processing is huge, occupation of land is many, and environment is still had certain dust pollution.The coal gas that gasification reaction generates is carried a large amount of coal dusts secretly and is come out of the stove, and increases the coal gas dust removal difficulty.Other vapourizing furnace can only utilize the little beans of lump coal again, maybe fine coal will be made moulded coal and go into stove.The advantage of melting pond gasifier of the present utility model is that the particle diameter≤3.5mm that accounts for total coal amount 40%～55% that utilizes the mixing pieces screen to select smears coal, do not need attrition process, smear the coal lock hopper by another and directly add the bottom fusion pool from the furnace side, bottom, the various type shape coals of raw coal are gasified in the utility model stove, " eat up and use up ", also be applicable to high sulphur coal, improve resource utilization greatly, save processing charges.
What the know-why of spiral-flow melting pond gasifier of the present utility model was two is, oxygen and water vapor are respectively in different positions adds stove, oxygen promptly sprays into the oxidation fusion pond in the body of heater bottom, and superheated vapour sprays on the oxidation fusion pond, makes oxidation panel form the CO that generates
2Perfect combustion reaction, emit maximum heats, produce higher temperature.
What the know-why of spiral-flow melting pond gasifier of the present utility model was three is, install two (or four at body of heater bottom same level in the face of claiming, or six) tangential nozzle, the oxygen tangent line is entered in the stove, coal dust reaction with the particle diameter≤3.5mm of direct adding, heat release produces～1400 ℃ of high temperature, is liquid with the coal fusion, forms the oxidation fusion pond; Symmetrically arranged two oxygen that (or four, or six) nozzle tangential direction sprays into drive liquid and form swirling motion, and the gas-to-liquid contact face fast upgrades, and the combustion reactions of carbon and oxygen is sharply carried out, the CO of the carbon reaction back generation in the liquid
2Hightail the liquid phase surface toward rising, other material (slag) not gasifiable in the liquid flows to down through cinder notch, falls into the broken bucket of water, meets the broken shape vitreum of water-cooled granule.
Rise with CO
2Be main high-temperature gas with slowly under the coal of preheating contact, make coal become red-hot state, at this CO
2Carry out reduction reaction with carbon by previous reaction formula (4) and generate CO, spray into superheated vapour by steam injector 8 on this, water vapor carries out reduction reaction with carbon by reaction formula (2) immediately, generates H
2+ CO is in CO, the H of the condition of high temperature
2, unreacted water vapor rises, and continues to react by reaction formula (2) with the carbon of the preheating that moves down, and continues to generate H
2+ CO; The comparatively high temps H that reaction generates
2, CO, on 5%～10% water vapor of also having an appointment continues, with the charcoal heating that moves down, make wherein that volatile matter evaporates under the anaerobic situation, together with H
2, CO, steam rise, and the upper strata charcoal is carried out preheating, makes the water evaporation in the charcoal, coal is dried.Contain H
2, CO, CO
2, H
2The gasometer raw gas of O and volatile matter from the outlet of stove top side, carries out subsequent disposal.
As known from the above, the utility model is a spiral-flow melting pond gasifier, and it has with respect to the remarkable advantage of prior art:
1. little beans and fine coal (particle diameter≤3.5mm) directly add in the eddy flow fusion pool, be heated swollen at once rise gasification and oxygen reaction;
2. the piece charcoal adds in the vapourizing furnace, from top to bottom moves, and gas (comprises O
2, H
2O, CO
2, H
2, CO) from bottom to top, the gas-solid contrary is to flowing, and upgrades soon than the co-current flow solid contact surface of taking offence, and helps reaction;
3. physical change and chemical transformation are arranged in the stove, from top to bottom be divided into drying layer, destructive distillation layer, reducing zone, oxidation fusion pond by changing conditions, the gas-liquid oxidizing reaction of carbon is carried out in the oxidation fusion pond, and reducing zone carries out the gas-solid reduction reaction, and destructive distillation, drying are physical processes;
4. oxygen sprays into tangential direction by the two or more symmetric nozzles in top, oxidation fusion pond, forms the eddy flow operation, has greatly accelerated gas-liquid oxidizing reaction speed;
5. the solubility promoter of Jia Ruing can make slag in the time of 1250 ℃～1350 ℃, is molten into mobile well liquid; Be easier to form rotational flow, formation has a constant volume, stores big calorimetric high-temp liquid slag fusion pool;
6. the utility model has desulfidation owing to add a certain amount of alkaline auxiliary solvent in high-temp liquid slag melt pool, is applicable to the high-sulfur coal gasification.
7. liquid at high speed swirling motion, the gas that reaction generates therefrom rises in the heart, the diffusion that helps gas with separate, slag floats over above the oxidation fusion pond, down flow in the broken bucket of water through overflow port;
8. top, oxidation fusion pond is red-hot carbon-coating, and superheated vapour sprays into, and presses reaction formula (2) row reduction reaction with carbon immediately, generates H
2+ CO.
Spiral-flow melting pond gasifier described in the utility model can utilize the coal of various granularities, has saved coal processing investment and tooling cost; Gasification intensity is big, the gas production rate height; Fuel carries out perfect combustion in the fusion pool of eddy flow, and furnace temperature is up to more than～1400 ℃, coal gas effective constituent CO+H
2Up to 90%; Coal gas tapping temperature＜600 ℃, lower than the oxygen consumption, lower than coal consumption, steam decomposition rate is more than 90%, also can self-produced middle pressure steam; The gasification system facility investment is few; No waste gas, flushing cinder water can be recycled environmental friendliness.
Description of drawings
Fig. 1 is the structural representation of a kind of embodiment of spiral-flow melting pond gasifier of the present utility model;
Fig. 2 is the horizontal section structural representation of reduction section among Fig. 1.
In the drawings:
The last coal lock hopper of 1-, coal lock hopper under the 2-, the 3-water-cooling jacket,
The 4-body of heater, the 5-gas exit, the 6-water-cooling jacket,
The 7-expansion joint, the 8-vapor-nozzle, the 9-oxygen jet,
10-solidifies and melts the flux shielding layer, 11--oxidation fusion pond, and 12-blowing out slag-drip opening,
13-top water disintegrating slag pin bucket, 14-bottom water slag pin bucket, the 15-overflow port of slagging tap,
The 16-spiral propeller, the 17-reduction section, the 18-dryer section,
The 19-retort section, 20-coal sparger, 21--fines downtake,
The 22-annular space, lock hopper under the 23-fines, 24 fines upper lock hoppers,
The 25-drum, 26-hot water circulating pump, 27-slag bath.
Embodiment
As depicted in figs. 1 and 2, described spiral-flow melting pond gasifier comprises that periphery is provided with the cylindrical furnace 4 of water-cooling jacket 6, water-cooling jacket 6 is the big reducing round shape in little bottom, top, big footpath, bottom inner core is connected to 1～3 in order to eliminate the expansion joint 7 of thermal stresses that temperature variation produces, coal lock hopper 1 and following lock coal bunker 2 are equipped with in body of heater 4 tops, the upper furnace of body of heater 4 also is equipped with the coal sparger 20 of band water-cooling jacket 3 in following coal lock hopper 2 belows, it is characterized in that, between the upper furnace inwall of body of heater 4 and the water-cooling jacket 3 of described coal sparger 20 annular space 22 is arranged, body of heater 4 one sides are provided with the gas exit 5 that is communicated with this annular space 22; The bottom of body of heater 4 is that oxidation fusion pond 11 and this oxidation fusion pond 11 are provided with relative oxidation fusion pond 11 and are at least one pair of oxygen jet 9 tangential and that be symmetrically distributed; The burner hearth that rise from the bottom to top at 11 tops, described oxidation fusion pond is followed successively by reduction section 17, dryer section 18, retort section 19, and retort section 19 is positioned at described coal sparger 20 belows; 11 tops, oxidation fusion pond are provided with steam injector 8; The overflow port 15 of slagging tap of described body of heater 4 is located in the oxidation fusion pond 11 and is higher than this bottom, oxidation fusion pond, and overflow port 15 bottoms of slagging tap are connected to top water disintegrating slag pin bucket 13 and bottom water slag pin bucket 14; Oxidation fusion pond 11 sidewalls are provided with fines and send into mouth.
The fines of described oxidation fusion pond 11 sidewalls is sent into mouth and is connected to fines downtake 21, and these fines downtake 21 upper port are connected to lock hopper 23 and fines upper lock hopper 24 under the fines; Spiral propeller 16 is housed in the fines downtake 21.
The described overflow port 15 of slagging tap is located at 11 centers, oxidation fusion pond and is higher than this bottom, oxidation fusion pond 300mm～400mm.
Described oxygen jet 9 is arranged a pair of for horizontal tangential.Oxygen jet 9 is located at overflow port 15 height of slagging tap with upper/lower positions.
During the stove operation, be shaped as 〉=bulk of 3.5mm, granular fuel through last coal lock hopper 1 from furnace roof adds stove, the Paniculate coal of particle diameter≤3.5mm and smear coal, lock hopper 23, fines downtake 21 under fines upper lock hopper 24 and fines are sent into a mouthful adding oxidation fusion pond 11 from two fines of described oxidation fusion pond 11 sidewalls; Add fusing assistants such as a certain proportion of ferric oxide, calcium oxide in coal, cinder melting yield temperature (FT) is reduced to≤cinder softening temperature (DT), it is well liquid to form flowing property; Heat is emitted in the reaction of oxygen and carbon in the described oxidation fusion pond 11, forms certain high temperature, is liquid with the solid fuel melting, and is formed with the oxidation sludge melt pool of certain liquid level.
Described coal sparger 20 is rack-mount spheroid, and this spheroid is provided with cylinder water-cooling chuck 3 outward; Between this spheroid and cylinder water-cooling chuck 3 inwalls is the coal decline passway; The support of hollow communicates with cylinder water-cooling chuck 3.
Described reduction section 17 to water-cooling jacket 6 inner cores of gas exit 5 are provided with flame retardant coating.
Described water-cooling jacket (6) is formed cooling water circulation loop through pipeline with external drum 25.
Decline pipeline at described pipeline is provided with hot water circulating pump 26.
Blowing out slag-drip opening 12 is arranged at 11 bottoms, described oxidation fusion pond, and this slag-drip opening has quick-opening valve, and the valve core contact surface of described quick-opening valve has the anti-pyritous powder more than 1800 ℃ of one deck; When vapourizing furnace is out of service, open quick-opening valve, can be by this mouthful with all liquid slag discharges in the pond.
The utility model has been gathered the advantage of various evaporating methods, and investment is more economized.
Claims (10)
1. spiral-flow melting pond gasifier, comprise that periphery is provided with the cylindrical furnace of water-cooling jacket (6) (4), water-cooling jacket (6) is the big reducing round shape in little bottom, top, big footpath, bottom inner core is connected to 1～3 in order to eliminate the expansion joint (7) of thermal stresses that temperature variation produces, coal lock hopper (1) and following lock coal bunker (2) are equipped with in body of heater (4) top, the upper furnace of body of heater (4) also is equipped with the coal sparger (20) of being with water-cooling jacket (3) below following coal lock hopper (2), it is characterized in that, between the water-cooling jacket (3) of the upper furnace inwall of body of heater (4) and described coal sparger (20) annular space (22) is arranged, body of heater (4) one sides are provided with the gas exit (5) that is communicated with this annular space (22); The bottom of body of heater (4) is that oxidation fusion pond (11) and this oxidation fusion pond (11) are provided with relative oxidation fusion pond (11) and are at least one pair of oxygen jet (9) tangential and that be symmetrically distributed; The burner hearth that rise from the bottom to top at top, described oxidation fusion pond (11) is followed successively by reduction section (17), dryer section (18), retort section (19), and retort section (19) is positioned at described coal sparger (20) below; Top, oxidation fusion pond (11) is provided with steam injector (8); The overflow port of slagging tap (15) of described body of heater (4) is located in the oxidation fusion pond (11) and is higher than this bottom, oxidation fusion pond, and the overflow port of slagging tap (15) bottom is connected to top water disintegrating slag pin bucket (13) and bottom water slag pin bucket (14); Oxidation fusion pond (11) sidewall is provided with fines and sends into mouth.
2. according to the described spiral-flow melting pond gasifier of claim 1, it is characterized in that, the fines of described oxidation fusion pond (11) sidewall is sent into mouth and is connected to fines downtake (21), and this fines downtake (21) upper port is connected to lock hopper under the fines (23) and fines upper lock hopper (24); Spiral propeller (16) is housed in the fines downtake (21).
3. according to the described spiral-flow melting pond gasifier of claim 1, it is characterized in that the described overflow port of slagging tap (15) is located at (11) center, oxidation fusion pond and is higher than this bottom, oxidation fusion pond 300mm～400mm.
4. according to the described spiral-flow melting pond gasifier of claim 1, it is characterized in that described oxygen jet (9) is a pair of to four pairs for the horizontal tangential layout, every pair is two.
5. according to claim 1 or 3 described spiral-flow melting pond gasifiers, it is characterized in that oxygen jet (9) is located at the overflow port of slagging tap (15) height with upper/lower positions.
6. according to the described spiral-flow melting pond gasifier of claim 1, it is characterized in that described coal sparger (20) is rack-mount spheroid, this spheroid is provided with cylinder water-cooling chuck (3) outward; Between this spheroid and cylinder water-cooling chuck (3) inwall is the coal decline passway; The support of hollow communicates with cylinder water-cooling chuck (3).
7. according to the described spiral-flow melting pond gasifier of claim 1, it is characterized in that described reduction section (17) to water-cooling jacket (6) inner core of gas exit (5) is provided with flame retardant coating.
8. according to the described spiral-flow melting pond gasifier of claim 1, it is characterized in that described water-cooling jacket (6) is formed cooling water circulation loop through pipeline with external drum (25).
9. according to the described spiral-flow melting pond gasifier of claim 11, it is characterized in that, hot water circulating pump (26) is set at the decline pipeline of described pipeline.
10. according to the described spiral-flow melting pond gasifier of claim 1, it is characterized in that blowing out slag-drip opening (12) is arranged at described oxidation fusion pond (1 1) bottom, this slag-drip opening has quick-opening valve, and the valve core contact surface of described quick-opening valve has the anti-pyritous powder more than 1300 ℃ of one deck.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200033021U CN201634638U (en) | 2009-10-23 | 2010-01-04 | Gasification furnace of spiral-flow type molten pool |
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|---|---|---|---|
| CN200910044614.9 | 2009-10-23 | ||
| CN200910044614 | 2009-10-23 | ||
| CN2010200033021U CN201634638U (en) | 2009-10-23 | 2010-01-04 | Gasification furnace of spiral-flow type molten pool |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101845326B (en) * | 2009-10-23 | 2012-12-12 | 湖南安淳高新技术有限公司 | Spiral-flow melting pond gasifier |
| CN104403694A (en) * | 2014-10-16 | 2015-03-11 | 煤炭科学技术研究院有限公司 | Liquid-state continuous slag discharge device and slag discharge method of fixed bed gasification furnace |
| CN111471489A (en) * | 2020-04-01 | 2020-07-31 | 华东理工大学 | Method and device for preparing synthesis gas from carbon-containing solid waste |
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2010
- 2010-01-04 CN CN2010200033021U patent/CN201634638U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101845326B (en) * | 2009-10-23 | 2012-12-12 | 湖南安淳高新技术有限公司 | Spiral-flow melting pond gasifier |
| CN104403694A (en) * | 2014-10-16 | 2015-03-11 | 煤炭科学技术研究院有限公司 | Liquid-state continuous slag discharge device and slag discharge method of fixed bed gasification furnace |
| CN104403694B (en) * | 2014-10-16 | 2017-02-15 | 煤炭科学技术研究院有限公司 | Liquid-state continuous slag discharge device and slag discharge method of fixed bed gasification furnace |
| CN111471489A (en) * | 2020-04-01 | 2020-07-31 | 华东理工大学 | Method and device for preparing synthesis gas from carbon-containing solid waste |
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