CN202401035U - Biomass air-floatation flow-state high-temperature heat-exchange gasifying device - Google Patents
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- CN202401035U CN202401035U CN2011204517447U CN201120451744U CN202401035U CN 202401035 U CN202401035 U CN 202401035U CN 2011204517447 U CN2011204517447 U CN 2011204517447U CN 201120451744 U CN201120451744 U CN 201120451744U CN 202401035 U CN202401035 U CN 202401035U
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Abstract
The utility model discloses a biomass air-floatation flow-state high-temperature heat-exchange gasifying device, which comprises a gas making furnace and at least one coke cracking furnace. The gas making furnace comprises a mixing chamber, a tube nest layer, an upper gas collection chamber and a tube nest casing layer. The mixing chamber and the upper gas collection chamber of the gas making furnace are communicated through the tube nest layer. Partitions are arranged above and below tube nests of the gas making furnace and the tube nests are fixed by the partitions. The mixing chamber, the tube nest layer and the upper gas collection chamber are in airtight seal with the tube nest casing layer through the partitions. The tube nest casing layer of the gas making furnace is provided with a high-temperature flue gas inlet and a high-temperature flue gas outlet which are communicated with the outside. At least one ash buckets are arranged on the lower portion of the tube nest casing layer. The mixing chamber is arranged below the tube nest layer, the upper gas collection chamber is arranged above the tube nest layer, the mixing chamber is provided with a biomass inlet inside, and mixing blades are mounted at the bottom of the mixing chamber and connected with a first motor. Heat sources in the whole cracking and gasifying process are generated from high-temperature flue gas during burning biomass micrometer fuel which is a regenerable clean energy resource, wide in source and low in cost. The biomass air-floatation flow-state high-temperature heat-exchange gasifying device has the advantages of high heat efficiency and high gas production efficiency and gas calorific value.
Description
Technical field
The utility model belongs to biomass energy technology, is specifically related to a kind of biomass air supporting fluidised form high temperature heat exchange gasification installation, is applicable to organism and coal coal, is particularly useful for agriculture and forestry organic waste material and coal dust pyrolysis gasification reformation and produces combustion gas.
Background technology
Serious day by day along with the exhausted day by day and environmental problem of fossil energy, the recycling treatment of developing clean renewable energy source, refuse has become urgent subject.Biomass fuel will become the substitute of mineral fuel such as coal, oil and natural gas, and its crucial part converts low-grade biomass energy to the high-grade energy exactly.
The internal heat type gasification process that generally adopts both at home and abroad, it be biomass at vaporizer and air incomplete combustion, the direct heating biomass make it to gasify.This method heating efficiency is high, but a large amount of nitrogen that the air that internal combustion needs is brought into have reduced the combustion gas quality, so the calorific value of combustion gas is low, has only 1200 kilocalories/M
3Below.The gasification efficiency of this method is merely below 70%, awkward tar and the residual charcoal of resultant product to utilize, and the combustion gas transformation efficiency is low, the serious waste energy.In the gas-purification process, can produce a large amount of tar and waste waters, contaminate environment simultaneously.Though it has been carried out improvement for many years both at home and abroad, the internal heat type gasification process can't be applied because of the defective of self eventually.Therefore; Must gasify to the biomass indirect heating; Avoiding bringing calorific value and the quality that a large amount of nitrogen reduce combustion gas into, and must tar, residual charcoal be converted into combustion gas as much as possible in gasification, to improve the economic benefit that biomass are utilized because of internal combustion heating.The gasification of biomass external-heat exists heat and moisture transfer problems; Because heat carries out thermal conduction and radiation heat transfer by the outer wall of pyrolysis vaporizer to the center; This will cause outside temperature too high; And the temperature at center is on the low side, thereby has influenced the reaction times, and the heating and cooling time of pyrolysis vaporizer is also long.
Chinese patent document CN101935568A discloses " a kind of high temperature biomass micron fuel " (open day is on 01 05th, 2011); It comprises plant fibre powder and additive; Wherein, The plant fibre powder massfraction accounts for 75～100%, and additive is at least a during coal dust, lime powder and red mud account for, and the plant fibre powder particle diameter accounts for more than 70% less than the particle diameter of 250 μ m.Its temperature of combustion improves about 1 times than traditional method, and efficiency of combustion improves more than 1 times.Ordinary student material filamentary material can be carried through the micronization technology in fluidization, has become a kind of higher-grade fluid fuel near fuel oil and combustion gas.Can be widely used in that thermal power generation, Metal Melting, sea water desaltination, cities and towns heating, lime are fired, heat system air-conditioning, industry heating etc.
The subject matter that the biomass gasification method that is adopted at present exists:
(1) the internal heat type gasification is a vaporized chemical with the air, contains a large amount of N in the gasification burning
2And CO
2, fuel gases calorific value is lower, and gasification efficiency is low, produces a large amount of tar.
(2) the internal heat type gasification is a vaporized chemical with the pure oxygen, and cost is high, and investment is big.
(3) traditional external-heat gasifies, and the solid gasified raw material stockpiles at vaporizer, through the furnace wall indirect heating; Because the vaporizer diameter is big (usually at 300-800mm), heat transfer distances is long, and heat transmission resistance is big; Thereby heat transfer efficiency is low, and gasification efficiency is low, causes energy transformation efficiency low.
(4) the external-heat gasification is if adopt electricity, combustion gas or fuel oil as external heat source, and heating cost is high.
Summary of the invention
The purpose of the utility model is to overcome the weak point of above-mentioned prior art, and biomass air supporting fluidised form high-temperature tubular heat exchange gasification installation is provided, and the utlity model has the characteristics that cost is low, thermo-efficiency is high, gas producing efficiency is high and fuel gases calorific value is high.
A kind of biomass air supporting fluidised form high temperature heat exchange gasification installation that the utility model provides is characterized in that, this device comprises the burnt pyrolyzer of Gas-making Furnace and at least one charcoal;
Gas-making Furnace comprises teeter column, tubulation pipe layer, goes up collection chamber and tubulation shell.Be communicated with through tubulation pipe layer between the teeter column of Gas-making Furnace and the last collection chamber.The upper and lower dividing plate that is provided with of Gas-making Furnace tubulation is fixed, through dividing plate with teeter column, tubulation pipe layer, go up hermetic seal between collection chamber three and the Gas-making Furnace tubulation shell; Gas-making Furnace tubulation shell is provided with high-temperature flue gas import and the outlet with external communications, and is provided with one or more ash buckets in the shell bottom;
The teeter column is positioned at tubulation pipe layer below, and last collection chamber is positioned at tubulation pipe layer top, is provided with biomass feed inlet in the teeter column, and agitating vane is installed in the bottom of teeter column, and agitating vane links to each other with first motor;
The burnt pyrolyzer of charcoal comprises tubulation pipe layer, tubulation shell, goes up collection chamber and following collection chamber.Be communicated with through tubulation pipe layer between last collection chamber and the following collection chamber.The upper and lower dividing plate that is provided with of the burnt pyrolyzer tubulation of charcoal is fixed, and will go up hermetic seal between collection chamber, tubulation pipe layer, following collection chamber three and the tubulation shell through dividing plate; The burnt pyrolyzer tubulation of charcoal shell is provided with high-temperature flue gas import and the outlet with external communications; Last collection chamber is provided with the water vapour import, and last collection chamber communicates through collection chamber on tar gas pipeline and the Gas-making Furnace; Following collection chamber is provided with the air outlet, and its bottom is equipped with the burnt pyrolyzer agitating vane of the charcoal that links to each other with second motor; The burnt pyrolyzer tubulation of charcoal shell communicates through the high-temperature flue gas pipeline with Gas-making Furnace tubulation shell.
The utility model is compared prior art and is had the following advantages:
(1) biomass air-isolation sealing charging under the condition of pressure; Guaranteed that the pyrolysis gasification product is pressed into gasification system and continues cracking; The combustion gas that has guaranteed simultaneously to produce does not contain the nitrogen that derives from air not by airborne nitrogen dilution in the combustion gas of generation, fuel gases calorific value is high
(2) biological particles relies on mechanical stirring in Gas-making Furnace, makes it be vaporific fluidised form, helps the raising of solid particulate even heating and heat transfer efficiency.
(3) gasified raw material flows in tubulation and is gasified by indirect heating; So just the solid indirect heating is transformed into the indirect heating to vapor phase stream; Greatly increase the unit heat transfer area; Shorten heat transfer distances, improve heat transfer efficiency, solved the low problem of external-heat gasified raw material indirect heating thermo-efficiency.
(4) adopt tubular heat exchange to conduct heat in the burnt pyrolyzer of charcoal; Tubulation shell district adopts the thermal-flame heating of biomass micron fuel combustion; Tubulation pipe layer district passes through gas-gas heat-exchange method to tar gas and semicoke high temperature cracking steam gasification; Help tar uniform high-efficiency ground and obtain high temperature, it is high to have coke tar cracking efficient, the semicoke advantage completely that gasifies.
(5) after the high-temperature flue gas of biomass micron fuel combustion carries out indirect heating to the tubulation shell in the burnt pyrolyzer of charcoal; Again the tubulation shell in the Gas-making Furnace is carried out indirect heating; Its using waste heat from tail gas and then be used for to the indirect heating preheating of gasifying biomass raw material with to participating in the indirect heating preheating with the air of biomass micron fuel combustion; Realize the multistage cascade utilization of heat energy, improved the efficiency of utilization of gasification system
(6) mechanical movement of solid gasified raw material in whole gasification system is transformed into liquid motion, designs simplification, and process is controlled easily; Raw material pyrolysis gasification in the air supporting campaign, SR is little.
(7) the biomass micron fuel of the thermal source use of whole pyrolysis gasification process heating is a kind of reproducible clean energy, and the source is wide, cost is low.
Description of drawings
Fig. 1 is the structural representation of first kind of embodiment of the utility model device;
Fig. 2 is the structural representation of second kind of embodiment of the utility model device;
Among the figure: 1, collection chamber on the Gas-making Furnace; 2, Gas-making Furnace tubulation upper spacer; 3, exhanst gas outlet; 4, Gas-making Furnace tubulation shell; 5, Gas-making Furnace tubulation pipe layer; 6, teeter column; 7, opening for feed; 8, Gas-making Furnace agitating vane; 9, tar gas pipeline; 10, water vapour import; 11, high-temperature flue gas import; 12, the burnt pyrolyzer tubulation of charcoal pipe layer; 13, the burnt pyrolyzer tubulation of charcoal shell; 14, air outlet; 15, collection chamber on the burnt pyrolyzer of charcoal; 16, the burnt pyrolyzer agitating vane of charcoal; 17, the burnt pyrolyzer tubulation of charcoal upper spacer; 18, high-temperature flue gas pipeline; 19, ash bucket; 20, Gas-making Furnace tubulation lower clapboard; 21, collection chamber under the burnt pyrolyzer of charcoal; 22, the burnt pyrolyzer tubulation of charcoal lower clapboard; 23, collection chamber under the Gas-making Furnace.
Embodiment
The utility model method comprises the steps:
(1) the gasifying biomass raw material is stirred, make it form fog flow with air-flow, wherein, particle grain size more than 80% is arranged in the initial biological matter gasified raw material below 2mm, the particle grain size more than 30% is below 0.5mm; If gasified raw material is a coal dust, particle grain size more than 80% is arranged in the initial gasified raw material below 1mm, the particle grain size more than 30% is below 0.3mm;
(2) in 800-1400 ℃ high-temperature flue gas, optimal temperature is to carry out cracking under 900-1050 ℃ the high-temperature flue gas indirect heating condition to the material that step (1) is obtained, and obtains high-temperature coke oil gas in the air supporting campaign;
(3) with high-temperature coke oil gas high-temperature flue gas through 1000-1800 ℃ under the water vapour existence condition, optimal temperature is under 1100-1400 ℃ the high-temperature flue gas indirect heating, to carry out the Pintsch process gasification, and reaction generates CO, H
2And CH
4, also reaction generates CO and H to residual charcoal with water vapour in the high-temperature coke oil gas
2Water vapour feeding amount S/B is best in the 0.73-1.02 scope, and S representes the flow velocity of water vapour, and B representes gasifying biomass material feeding speed.
(4), filter with condensation cleaning and handle, with regard to available CO, H to resulting solid residue of step (3) and combustion gas
2And CH
4Content accounts for the medium calorific value gas about 80%, contains tar in the combustion gas hardly.
Optimization as technique scheme; The biomass micron fuel combustion that high-temperature flue gas in step (2) and (3) provides by CN101935568A produces, and 1800 ℃ high-temperature flue gas is that air through preheating produces biomass micron fuel generation high-temp combustion.
The thermal source air-flow of gas-air-tube type heat-exchange method can be walked shell, also can walk the pipe layer.Fig. 1 is the embodiment that the thermal source air-flow is walked shell.In this embodiment, device comprises the burnt pyrolyzer of Gas-making Furnace and at least one charcoal.Gas-making Furnace comprises collection chamber 1 and Gas-making Furnace tubulation shell 4 on teeter column 6, Gas-making Furnace tubulation pipe layer 5, the Gas-making Furnace.The teeter column 6 of Gas-making Furnace is communicated with through tubulation pipe layer 5 with last collection chamber 1.The Gas-making Furnace tubulation is provided with upper spacer 2 and lower clapboard 20, and fixes through upper and lower dividing plate, through dividing plate with teeter column 6, tubulation pipe layer 5, go up hermetic seal between collection chamber 1 three and the Gas-making Furnace tubulation shell 4; Gas-making Furnace tubulation shell 4 is provided with the high-temperature flue gas outlet 3 with external communications, and is provided with ash bucket 19 in the shell bottom;
Be positioned at Gas-making Furnace tubulation pipe layer 5 below in the teeter column 6; Collection chamber 1 is positioned at Gas-making Furnace tubulation pipe layer 5 top on the Gas-making Furnace; Be provided with biomass feed inlet 7 in the teeter column 6, Gas-making Furnace agitating vane 8 is installed in the bottom of teeter column 6, and agitating vane 8 links to each other with first motor.
The burnt pyrolyzer of charcoal comprises on the burnt pyrolyzer tubulation of charcoal pipe layer 12, the burnt pyrolyzer tubulation of charcoal shell 13, the burnt pyrolyzer of charcoal collection chamber 21 under collection chamber 15, the burnt pyrolyzer of charcoal.Be communicated with through tubulation pipe layer 12 between last collection chamber 15 and the following collection chamber 21.The burnt pyrolyzer tubulation of charcoal is provided with upper spacer 17 and lower clapboard 22; And fix through upper and lower dividing plate, through dividing plate with hermetic seal between collection chamber 21 threes under collection chamber 15, tubulation pipe layer 12, the burnt pyrolyzer of charcoal on the burnt pyrolyzer of charcoal and the charcoal Jiao pyrolyzer tubulation shell 13; The burnt pyrolyzer tubulation of charcoal shell 13 is provided with the high-temperature flue gas import 11 with external communications; Last collection chamber 15 is provided with water vapour import 10, and last collection chamber 15 tops are communicated with through collection chamber 1 on tar gas pipeline 18 and the Gas-making Furnace; Following collection chamber 21 is provided with air outlet 14, and its bottom is equipped with the burnt pyrolyzer agitating vane 16 of the charcoal that links to each other with second motor; The burnt pyrolyzer tubulation of charcoal shell 13 and Gas-making Furnace tubulation shell 4 communicate through high-temperature flue gas pipeline 18.
The high-temperature flue gas of biomass micron fuel combustion gets into the burnt pyrolyzer tubulation of charcoals shell 13 through high-temperature flue gas import 11 its tubulation pipe layer 12 is carried out heat.The high-temperature flue gas of the burnt pyrolyzer tubulation of charcoal shell 13 carries out indirect heating through the tubulation shell 4 that high-temperature flue gas pipeline 18 gets into Gas-making Furnace to its tubulation pipe layer 5 subsequently; The part ash deposition is in ash bucket 19 in the final high temperature flue gas; Flue gas is from exhanst gas outlet 3 dischargings; Can utilize its waste heat to the indirect heating preheating of gasifying biomass raw material with to the indirect heating preheating of participation, to improve the efficiency of utilization of gasification system with the air of biomass micron fuel combustion.
Biological particles pressure sealing relies on agitating vane 8 mechanical stirring from the teeter column of opening for feed 7 entering Gas-making Furnace bottoms 6, and with the biological particles atomizing, atomizing particle is with air-flow rising entering Gas-making Furnace tubulation pipe layer 5.Gas-making Furnace tubulation shell 4 adopts high-temperature flue gas 900-1050 ℃ of biomass micron fuel combustion; For the vaporific biological particles pyrolysis gasification in the tubulation pipe layer provides heat energy; The high-temperature coke oil gas that produces rises under the effect of hot gas buoyant flow; Get into the last collection chamber 1 of Gas-making Furnace tubulation upper spacer 2 tops; The pyrolysis gasification reaction takes place through the last collection chamber 15 of tar gas pipeline 9 with the burnt pyrolyzer tubulation of the water vapor of adding 10 entering charcoals upper spacer 17 tops in high-temperature coke oil gas then that carry residual charcoal in the burnt pyrolyzer tubulation of charcoal pipe layer 12.1300-1500 ℃ of thermal-flame of biomass micron fuel combustion gets into its tubulation shells 13 through high-temperature flue gas import 11, and tar and water vapor through in 1100-1400 ℃ the high-temperature flue gas indirect heating tubulation pipe layer in the tubulation shell make it reaction and generate CO, H
2And CH
4, residual charcoal also generates CO and H with steam reaction
2, tar and residual charcoal are gasified by high temperature pyrolysis through gas-air-tube type interchanger at the volley.And the mechanical stirring through agitating vane 16, preventing that solid residue is deposited on collection chamber 21 under the burnt pyrolyzer of charcoal, last combustion gas and solid residue lime-ash 14 are gone out from the air outlet, carry out next step gas filtration and condensation cleaning, contain tar in the combustion gas hardly.The CO that obtains, H
2And CH
4Content accounts for the medium calorific value gas about 80%.
90% particle is at the following gasified raw material of 2mm; The air-isolation sealing gets into the teeter column 6 of Gas-making Furnace bottom under the condition of pressure, relies on blade mechanism to stir, and has certain crushing effect; With the biological particles atomizing, atomizing particle rises with air-flow and gets into Gas-making Furnace tubulation pipe layer.Gas-making Furnace tubulation shell district feeds the high-temperature flue gas waste heat heating of micron fuel combustion; Its high-temperature flue gas waste heat comes from the high-temperature flue gas in the tubulation shell district of the burnt pyrolyzer of charcoal; Vaporific granular fuel in the Gas-making Furnace tubulation pipe layer heats, and makes it pyrolysis gasification, and the high-temperature coke oil gas of generation rises under the effect of hot gas buoyant flow; And carry in the tubulation pipe layer of residual charcoal and the burnt pyrolyzer of adding of water vapor entering charcoal; Its tubulation shell district feeds biomass micron fuel combustion high-temperature flue gas, and tar and water vapor in the heating tubulation pipe layer make it reaction and generate CO, H
2And CH
4, residual charcoal also generates CO and H with steam reaction
2, tar and residual charcoal are separated thermal cracking gasification through gas-air-tube type heat-exchange method by high temperature in transmission.
Wherein the burnt pyrolyzer of charcoal can be 1-6, and optimum quantity is 2-3, and the thermal source air-flow of gas-air-tube type heat-exchange method can be walked shell, also can walk the pipe layer; The diameter of heat exchanging pipe is 10-220mm, and optimum diameter is 30-80mm.The material of burnt pyrolyzer tubulation of Gas-making Furnace tubulation and shell and charcoal and shell can be metal heat-stable material or nonmetal heatproof material.The inorganic matter of minority separates with combustion gas by dedusting in the gasification product of the burnt pyrolysis furnace gasification of charcoal back; High-temperature fuel gas obtains tar and the required water vapour of residual charcoal gasification through the preheating utilization, and gasification gas purifies after filtration and obtains required combustion gas.The energy of heating can be biomass micron fuel, combustion gas, fuel oil and residual powdered carbon.The particulate diameter of biomass micron fuel is main powder below 400 μ m, and optimum particle diameter is to be main powder below 250 μ m.Particle grain size more than 80% is below 2mm, and the particle grain size more than 30% is below 0.5mm.The waste heat of the high-temperature flue gas tail gas of the micron fuel combustion of coming out from Gas-making Furnace tubulation shell district is used for to the preheating of solid particle fuel indirect heating with to the indirect heating preheating of participation with the air of biomass micron fuel combustion, to improve the efficiency of utilization of gasification system.
Fig. 2 is the embodiment that the thermal source air-flow is walked the pipe layer, and among Fig. 2, the utility model device comprises the burnt pyrolyzer of Gas-making Furnace and at least one charcoal.Gas-making Furnace comprises on tubulation pipe layer 5, the Gas-making Furnace collection chamber 23, teeter column 6 and tubulation shell 4 under collection chamber 1, the Gas-making Furnace.
Gas-making Furnace tubulation shell 4 bottoms are provided with teeter column 6, are provided with biomass feed inlet 7 in the teeter column 6, and agitating vane 8 is installed in the bottom of teeter column 6, and agitating vane 8 links to each other with motor; Collection chamber 1 is provided with high-temperature flue gas outlet 3 on the Gas-making Furnace; On the Gas-making Furnace under collection chamber 1 and the Gas-making Furnace collection chamber 23 be communicated with through tubulation pipe layer 5.Upper spacer that the Gas-making Furnace tubulation is provided with 2 and lower clapboard 20, and fix through upper and lower dividing plate will be gone up hermetic seal between the collection chamber 23 and tubulation shell 4 under collection chamber 1, tubulation pipe layer 5, the Gas-making Furnace through dividing plate;
The burnt pyrolyzer of charcoal comprises collection chamber 21 and the burnt pyrolyzer tubulation of charcoal shell 13 under collection chamber 15 on the burnt pyrolyzer of charcoal, the burnt pyrolyzer tubulation of charcoal pipe layer 12, the burnt pyrolyzer of charcoal.Last collection chamber 15 communicates through tubulation pipe layer 12 with following collection chamber 21; Upper spacer 17 and lower clapboard 22 that the burnt pyrolyzer tubulation of charcoal is provided with; And fix through upper and lower dividing plate; To go up hermetic seal between collection chamber 15, tubulation pipe layer 12, following collection chamber 21 threes and the burnt pyrolyzer tubulation of the charcoal shell 13 through dividing plate; Collection chamber 15 tops are provided with high-temperature flue gas import 11 on the burnt pyrolyzer of charcoal, and collection chamber 21 is communicated with through collection chamber 20 under high-temperature flue gas pipeline 18 and the Gas-making Furnace under the burnt pyrolyzer of charcoal, and is provided with ash buckets 19 in high-temperature flue gas pipeline 18 centres; The burnt pyrolyzer tubulation of charcoal shell 13 is provided with water vapour import 10; The burnt pyrolyzer tubulation of charcoal shell 13 tops communicate with Gas-making Furnace tubulation shell 4 tops through tar gas pipeline 9; The burnt pyrolyzer tubulation of charcoal shell 13 bottoms are provided with air outlet 14.
Below through by embodiment the utility model being described in further detail, but following examples only are illustrative, and the protection domain of the utility model does not receive the restriction of these embodiment.
Instance 1:
Used gasified raw material is a pine sawdust; Be processed into particle diameter less than 3mm through homemade crusher, adopt this gasification process, the air-isolation sealing gets into Gas-making Furnace; After atomizing, get into Gas-making Furnace tubulation pipe layer; Tubulation shell feeding temperature is that 1050 ℃ high-temperature flue gas carries out pyrolysis gasification to pine sawdust particle in the pipe layer, and the high-temperature coke oil gas of generation gets into charcoal Jiao pyrolyzer with the water vapor of adding, and wherein S/B is 1.02; Carry out the pyrolysis gasification reaction of tar gas through pipe type heat transfer, under 1400 ℃ high-temperature flue gas heating, make the reaction of tar generating gasification generate CO, H
2And CH
4, residual charcoal also generates CO and H with steam reaction
2
High-temperature flue gas in this experiment be by diameter less than the thermal-flame that the biomass micron fuel high-temp combustion of 250 μ m is produced, progressively feed burnt tubulation furnace shell layer of charcoal and Gas-making Furnace tubulation shell.
Through present method, the combustion gas total gas production of acquisition is 1.77Nm
3/ kg.Tar content is 0.12%, and gaseous product mainly comprises H
2, CO, CH
4, C
2H
4, C
2H
6And CO
2Deng, content is respectively 40.8%, 25.4%, 8.5%, 2.2%, 0.1% and 23% separately, carbon conversion efficiency is 88.2%.
Used gasified raw material is a stalk; Make the biomass material that particle diameter is 3-15mm after the fragmentation, adopt this gasification process, the air-isolation sealing gets into Gas-making Furnace; After atomizing, get into Gas-making Furnace tubulation pipe layer; Tubulation shell feeding temperature is that 900 ℃ high-temperature flue gas carries out pyrolysis gasification to stalk particle in the pipe layer, and the high-temperature coke oil gas of generation gets into charcoal Jiao pyrolyzer with the water vapor of adding, and wherein S/B is 0.73; Carry out the pyrolysis gasification reaction of tar gas through pipe type heat transfer, under 1100 ℃ high-temperature flue gas heating, make the reaction of tar generating gasification generate CO, H
2And CH
4, residual charcoal also generates CO and H with steam reaction
2
High-temperature flue gas in this experiment be by diameter less than the thermal-flame that the biomass micron fuel high-temp combustion of 250 μ m is produced, progressively feed burnt tubulation furnace shell layer of charcoal and Gas-making Furnace tubulation shell.
Through present method, the combustion gas total gas production of acquisition is 1.23Nm
3/ kg.Tar content is 0.96%, and gaseous product mainly comprises H
2, CO, CH
4, C
2H
4, C
2H
6And CO
2Deng, content is respectively 36.3%, 20.4%, 12.2%, 2.3%, 0.8% and 28% separately, carbon conversion efficiency is 73%.
The above is the preferred embodiment of the utility model, but the utility model should not be confined to the disclosed content of this embodiment and accompanying drawing.So everyly do not break away from the equivalence of accomplishing under the spirit disclosed in the utility model or revise, all fall into the scope of the utility model protection.
Claims (1)
1. a biomass air supporting fluidised form high temperature heat exchange gasification installation is characterized in that, this device comprises the burnt pyrolyzer of Gas-making Furnace and at least one charcoal;
Gas-making Furnace comprises collection chamber (1) and Gas-making Furnace tubulation shell (4) on teeter column (6), Gas-making Furnace tubulation pipe layer (5), the Gas-making Furnace.Teeter column of Gas-making Furnace (6) and last collection chamber (1) are communicated with through tubulation pipe layer (5); The Gas-making Furnace tubulation is provided with upper spacer (2) and lower clapboard (20), and fixes through upper and lower dividing plate, through dividing plate with teeter column (6), tubulation pipe layer (5), go up hermetic seal between collection chamber (1) three and the Gas-making Furnace tubulation shell (4); Gas-making Furnace tubulation shell (4) is provided with the high-temperature flue gas outlet (3) with external communications, and is provided with ash bucket (19) in the shell bottom;
Be positioned at Gas-making Furnace tubulation pipe layer (5) below in the teeter column (6); Collection chamber on the Gas-making Furnace (1) is positioned at Gas-making Furnace tubulation pipe layer (5) top; Be provided with biomass feed inlet (7) in the teeter column (6); Gas-making Furnace agitating vane (8) is installed in the bottom of teeter column (6), and agitating vane (8) links to each other with first motor.
The burnt pyrolyzer of charcoal comprises on the burnt pyrolyzer tubulation pipe layer (12) of charcoal, the burnt pyrolyzer tubulation shell (13) of charcoal, the burnt pyrolyzer of charcoal collection chamber (21) under collection chamber (15), the burnt pyrolyzer of charcoal; Be communicated with through tubulation pipe layer (12) between last collection chamber (15) and the following collection chamber (21); The burnt pyrolyzer tubulation of charcoal is provided with upper spacer (17) and lower clapboard (22); And fix through upper and lower dividing plate, through dividing plate with hermetic seal between collection chamber (21) three under collection chamber (15), tubulation pipe layer (12), the burnt pyrolyzer of charcoal on the burnt pyrolyzer of charcoal and the charcoal Jiao's pyrolyzer tubulation shell (13); The burnt pyrolyzer tubulation shell of charcoal (13) is provided with the high-temperature flue gas import (11) with external communications; Last collection chamber (15) is provided with water vapour import (10), and last collection chamber (15) top is communicated with through collection chamber (1) on tar gas pipeline (18) and the Gas-making Furnace; Following collection chamber (21) is provided with air outlet (14), and its bottom is equipped with the burnt pyrolyzer agitating vane (16) of the charcoal that links to each other with second motor; The burnt pyrolyzer tubulation shell of charcoal (13) communicates through high-temperature flue gas pipeline (18) with Gas-making Furnace tubulation shell (4).
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|---|---|---|---|
| CN2011204517447U CN202401035U (en) | 2011-11-15 | 2011-11-15 | Biomass air-floatation flow-state high-temperature heat-exchange gasifying device |
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|---|---|---|---|
| CN2011204517447U CN202401035U (en) | 2011-11-15 | 2011-11-15 | Biomass air-floatation flow-state high-temperature heat-exchange gasifying device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102260538A (en) * | 2011-06-24 | 2011-11-30 | 华中科技大学 | Method and device for air-floatation flow-state high-temperature heat-transfer gasification of biomass |
| CN108219853A (en) * | 2018-02-09 | 2018-06-29 | 河南心连心化肥有限公司 | A kind of automaton and its control method of Gas-making Furnace gasification layer thickness |
-
2011
- 2011-11-15 CN CN2011204517447U patent/CN202401035U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102260538A (en) * | 2011-06-24 | 2011-11-30 | 华中科技大学 | Method and device for air-floatation flow-state high-temperature heat-transfer gasification of biomass |
| CN102260538B (en) * | 2011-06-24 | 2013-04-17 | 华中科技大学 | Method and device for air-floatation flow-state high-temperature heat-transfer gasification of biomass |
| CN108219853A (en) * | 2018-02-09 | 2018-06-29 | 河南心连心化肥有限公司 | A kind of automaton and its control method of Gas-making Furnace gasification layer thickness |
| CN108219853B (en) * | 2018-02-09 | 2023-10-27 | 河南心连心化学工业集团股份有限公司 | Automatic control device and control method for gasification layer thickness of gas making furnace |
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