CN101993735A - Biomass dry gasification centralized air supply system - Google Patents
Biomass dry gasification centralized air supply system Download PDFInfo
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- CN101993735A CN101993735A CN201010571834XA CN201010571834A CN101993735A CN 101993735 A CN101993735 A CN 101993735A CN 201010571834X A CN201010571834X A CN 201010571834XA CN 201010571834 A CN201010571834 A CN 201010571834A CN 101993735 A CN101993735 A CN 101993735A
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- 238000002309 gasification Methods 0.000 title claims abstract description 28
- 239000002028 Biomass Substances 0.000 title claims abstract description 24
- 238000001816 cooling Methods 0.000 claims abstract description 67
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 45
- 230000005540 biological transmission Effects 0.000 claims abstract description 23
- 238000009826 distribution Methods 0.000 claims abstract description 23
- 235000021419 vinegar Nutrition 0.000 claims abstract description 18
- 239000000052 vinegar Substances 0.000 claims abstract description 18
- 238000000926 separation method Methods 0.000 claims abstract description 16
- 230000002000 scavenging effect Effects 0.000 claims description 41
- 239000010881 fly ash Substances 0.000 claims description 35
- 238000000034 method Methods 0.000 claims description 22
- 239000000498 cooling water Substances 0.000 claims description 16
- 239000007788 liquid Substances 0.000 claims description 11
- 239000002956 ash Substances 0.000 claims description 9
- 210000000867 larynx Anatomy 0.000 claims description 9
- 238000009413 insulation Methods 0.000 claims description 7
- 239000000428 dust Substances 0.000 abstract description 20
- 238000000746 purification Methods 0.000 abstract description 7
- 239000010865 sewage Substances 0.000 abstract description 7
- 238000010276 construction Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 239000002737 fuel gas Substances 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 38
- 239000000567 combustion gas Substances 0.000 description 31
- 239000011269 tar Substances 0.000 description 15
- 238000005516 engineering process Methods 0.000 description 8
- 238000003860 storage Methods 0.000 description 8
- 239000002023 wood Substances 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 238000013517 stratification Methods 0.000 description 3
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 210000003608 fece Anatomy 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000003317 industrial substance Substances 0.000 description 2
- 239000010871 livestock manure Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000011276 wood tar Substances 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 235000019628 coolness Nutrition 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000005235 decoking Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000033116 oxidation-reduction process Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000002481 rotproofing Substances 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
- 230000001839 systemic circulation Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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Abstract
The invention relates to a biomass dry gasification centralized air supply system. The system consists of a gasification furnace, a dust removing system, a cooling purification system and a transmission and distribution system, wherein the dust removing system comprises a negative pressure vortex dust remover, a primary self-cooling dust remover and a secondary self-cooling dust remover; the cooling purification system comprises a primary coarse purification tower, a secondary coarse purification tower, an indirect cooling tower, an air-water separation tower, a purification tower, a vinegar tar tank, a circulating water tank, a circulating water pump, a fine purifier and a Roots blower; and the transmission and distribution system comprises a compatibilization transmission and distribution main pipe network, a branched air cylinder and a check valve. The biomass dry gasification centralized air supply system has the characteristics that: 1, the gasification furnace can continuously run; 2, sewage is not generated in the production process; 3, the system is not provided with a huge air holder; 4, the fuel gas quality is high; and 5, the equipment utilization rate is high, the construction investment is small and the centralized air supply system is energy-saving and environmentally-friendly.
Description
Technical field
The present invention relates to a kind of macro-organism matter dry method gasification central gas supply system, particularly relate to a kind of can continuous production, do not produce sewage in the production process, need not to be provided with the biomass dry method gasification central gas supply system of huge gas storage holder.
Background technology
Gasifying biomass central gas supply technology is the emerging technology that China rises in recent ten years, has been widely applied to rural area new forms of energy construction and other field.This technology relates to gasification, cooling, purification, transmission ﹠ distribution four systems.Gasification system is the device that solid biomass changes into inflammable gas, present domestic biomass gasifying furnace, all because of temperature height in the stove, the after-flame dust stratification can not in time discharge and can not move continuously in yielding damage of fire grate and the stove, make operation rate very low, cause the wasting of resources; The present domestic majority of cooling system all adopts recirculated water directly to spray technology.Though this technology good cooling results can be washed most of tar and dust in the thick combustion gas off again, has produced secondary pollution-sewage.This is the bottleneck of restriction gasifying biomass industry development.And no matter distributing system is low pressure transmission ﹠ distribution or the middle transmission ﹠ distribution technology of pressing, each gasification station all will be provided with huge gas storage holder, the effect one of gas storage holder is the peak valley of balance gas consumption, the 2nd, because of vapourizing furnace can not be made gas continuously, must store a large amount of combustion gas uses when not making gas, so gas storage holder must enough could satisfy customer requirements greatly, not only invest huge, and often maintaining again in using.
Summary of the invention
The technical problem to be solved in the present invention provides and a kind ofly can work continuously, production process does not produce sewage, the biomass dry method gasification central gas supply system of huge gas storage holder need not be set.
In order to achieve the above object, the technical solution used in the present invention is:
Biomass dry method gasification central gas supply system, be by vapourizing furnace, dust-removal system, cooling and purifying system and distributing system are formed, described dust-removal system includes negative pressure whirlpool fly-ash separator, self cooling fly-ash separator of one-level and the self cooling fly-ash separator of secondary, described cooling and purifying system includes the thick scavenging tower of one-level, the thick scavenging tower of secondary, indirect cooling tower, gas-water separation tower, scavenging tower, vinegar liquid tar pool, circulating water pool, water circulating pump, meticulous cleaner and roots blower, described distributing system includes total pipe network of increase-volume transmission ﹠ distribution and sub-cylinder
Described vapourizing furnace is connected with negative pressure whirlpool fly-ash separator by the gas outlet pipe, the top of negative pressure whirlpool fly-ash separator links to each other by the self cooling fly-ash separator of pipeline and two-stage, the self cooling fly-ash separator of two-stage links to each other by the thick scavenging tower of pipeline and two-stage, cooling tower is provided with tube side and shell side indirectly, the bottom of shell side links to each other with the thick scavenging tower of secondary, the top of shell side is connected with gas-water separation tower, the inlet end of the tube side of cooling tower is connected with the water circulating pump outlet by pipeline indirectly, the exit end of the tube side of cooling tower links to each other with circulating water pool by pipeline indirectly, the top of gas-water separation tower is connected with scavenging tower by pipeline, scavenging tower links to each other with meticulous cleaner by roots blower, meticulous cleaner links to each other with the total pipe network of increase-volume transmission ﹠ distribution by vacuum breaker, increase-volume transmission ﹠ distribution house steward Netcom piping links to each other with sub-cylinder, the thick scavenging tower of secondary, indirect cooling tower, scavenging tower is provided with ball valve and links to each other the self cooling fly-ash separator of two-stage with vinegar liquid tar pool by ball valve with the bottom of meticulous cleaner, the thick scavenging tower of two-stage, the bottom of gas-water separation tower and scavenging tower is provided with ash removing hole.
Described vapourizing furnace includes furnace shell, be provided with thermal insulation layer in the furnace shell, the lower inside of furnace shell respectively is welded with the circumferentially uniform upper backup pad in 16 edges and 12 circumferential uniform lower supporting plates in edge up and down, in the thermal insulation layer is cavity body, be provided with the larynx type in the cavity body and build pipe, the larynx type is built between pipe and the upper backup pad and is provided with the annular sealing-ring, the top of lower supporting plate is provided with card, be installed with the cold wind interchanger on the card, cold wind interchanger one end links to each other with the cold wind strainer that is arranged on the furnace shell outside, the other end links to each other with the hot-air distributor that is arranged on vapourizing furnace cavity body top by pipeline, the top of cold wind interchanger is equipped with fixedly water-cooled grate, fixedly the two ends of water-cooled grate are respectively arranged with fire grate cooling water inlet pipe and fire grate cooling water outlet pipe, stove is that the cooling water inlet pipe is connected with the water circulating pump outlet, the fire grate cooling water outlet pipe is connected with circulating water pool, fixedly on the water-cooled grate moving grate is installed, one end of moving grate links to each other with the deashing device that is arranged on the furnace shell outside by link gear and passes through the deashing device move left and right, the below of cold wind interchanger is provided with wind loop, the top of furnace shell is provided with bell, bell is connected by bolt with furnace shell, bell is provided with charging opening, the bottom of furnace shell is provided with the deashing quick operating valve, the top of card is equipped with the gas outlet pipe, and an end of gas outlet pipe stretches out outside the furnace shell.
Described indirect cooling tower is vertical tubular heat exchange.
The tube side of described indirect cooling tower is 4 strokes.
Advantage and effect that the present invention had are:
1, the running job continuously of the vapourizing furnace in the biomass dry method of the present invention gasification central gas supply system not only improves plant factor greatly, and for utilizing the alternative gas storage holder of transmission and distribution pipeline to create condition.Reduce investment outlay convenient management.Simultaneously, vapourizing furnace adopts warm air to cook vaporized chemical, has improved temperature in the stove, has strengthened thermal chemical reaction intensity, has improved transformation efficiency and combustion gas quality.
2, the vapourizing furnace in the biomass dry method gasification central gas supply system of the present invention can be accomplished the per hour combustion gas of uninterrupted output 500-700 cubic meter, can supply 500-700 family resident cooking gas at any time, so huge gas storage holder need be set, replace getting final product with increase-volume transmission ﹠ distribution total pipeline, pressure ring net transmission ﹠ distribution technology in the employing, transmission ﹠ distribution pressure is P≤0.09Mpa, not only can reduce investment outlay, and because adopt the PE pipe of combustion gas specialty, long service life, must rotproofing directly imbed underground, must daily maintenance, can guarantee 50 years, safe and reliable.
3, biomass dry method gasification central gas supply system utilization high-temperature dust removal of the present invention, low temperature decoking theory, adopt multistage dust separation device and indirect cooler cooling apparatus, the Multilevel Dust Control System of being made up of negative pressure whirlpool fly-ash separator, self cooling fly-ash separator can be removed 95% dust in the thick combustion gas, be deposited in device bottom, can make thick combustion gas naturally cooling simultaneously.The dust that settles down is regularly drawn out by the ash removing hole of device bottom, can be used as good farm manure.Not only well solved gas-purification and cooling problem, and gas-making process not only do not have sewage and produce, can also obtain the industrial chemicals-wood vinegar and the wood tar oil of commercial value.
4, biomass dry method of the present invention gasification central gas supply system plant factor height, construction investment is few, does not produce sewage in the production process, and energy-conserving and environment-protective are of many uses, can not only central gas supplies, also can be used for central heating, heat supply water, generating.
Description of drawings
Fig. 1 is the one-piece construction synoptic diagram of biomass dry method gasification central gas supply system of the present invention;
Fig. 2 is the sectional view of the vapourizing furnace of biomass dry method gasification central gas supply system of the present invention;
Fig. 3 is the vertical view of the vapourizing furnace of biomass dry method gasification central gas supply system of the present invention.
Among the figure: vapourizing furnace 3; Negative pressure whirlpool fly-ash separator 2; The self cooling fly-ash separator 1 of one-level; The self cooling fly-ash separator 4 of secondary, the thick scavenging tower 5 of one-level; The thick scavenging tower 6 of secondary; Indirect cooling tower 7; Gas-water separation tower 8; Scavenging tower 9; Roots blower 10; Meticulous cleaner 11; Sub-cylinder 12; The total pipe network 13 of increase-volume transmission ﹠ distribution; Vacuum breaker 14; Ball valve 15; Vinegar liquid tar pool 16; Ball valve 17; Ball valve 18; Ball valve 19; Ash removing hole 20; Circulating water pool 21; Water circulating pump 22; Furnace shell 313; Thermal insulation layer 312; The larynx type is built pipe 311; Sealing-ring 310; Moving grate 39; Upper backup pad 38; Gas outlet pipe 37; Fixedly water-cooled grate 36; Cold wind interchanger 35; Card 34; Lower supporting plate 33; Wind loop 32; Deashing device 317; Cold wind strainer 31; Fire grate cooling water inlet pipe 361; Fire grate cooling water outlet pipe 362; Deashing quick operating valve 319; Charging opening 314; Bell 315; Hot-air distributor 316; Cavity body 320; Pipeline 38; Pipeline 39.
Embodiment
The invention will be further described below in conjunction with accompanying drawing:
As shown in Figure 1, biomass dry method gasification central gas supply system of the present invention is made up of vapourizing furnace 3, dust-removal system, cooling and purifying system and distributing system, wherein:
Described vapourizing furnace 3 is the vapourizing furnace of working continuously, as Fig. 2, shown in 3, it includes furnace shell 313, it in the furnace shell 313 thermal insulation layer 312 that is built into by refractory brick, the lower inside of furnace shell 313 is along respectively being welded with 16 uniform upper backup pads 38 and 12 uniform lower supporting plates 33 week up and down, in the thermal insulation layer 312 is cavity body 320, be provided with the larynx type in the cavity body 320 and build pipe 311, the larynx type is built between pipe 311 and the upper backup pad 38 and is provided with annular sealing-ring 310, the external diameter of sealing-ring 310 is identical with the diameter of furnace shell 313, the internal diameter of sealing-ring 310 is identical with the internal diameter that the larynx type is built pipe 311, the top of lower supporting plate 33 is provided with card 34, be installed with cold wind interchanger 35 on the card 34, cold wind interchanger 35 1 ends link to each other with the cold wind strainer 31 that is arranged on furnace shell 313 outsides, the other end links to each other with the hot-air distributor 316 that is arranged on vapourizing furnace cavity body 320 tops by pipeline, the top of cold wind interchanger 35 is equipped with fixedly water-cooled grate 36, fixedly the two ends of water-cooled grate 36 are respectively arranged with fire grate cooling water inlet pipe 361 and fire grate cooling water outlet pipe 362, fire grate cooling water inlet pipe 361 is connected by the outlet of pipeline 38 with water circulating pump 22, fire grate cooling water outlet pipe 362 is connected with circulating water pool 21 by pipeline 39, fixedly on the water-cooled grate 36 moving grate 39 is installed, one end of moving grate 39 links to each other with the deashing device 317 that is arranged on furnace shell 313 outsides by link gear, and by deashing device 317 move left and right, the below of cold wind interchanger 35 is provided with wind loop 32, the top of furnace shell 313 is provided with bell 315, bell 315 is provided with charging opening 314, the bottom of furnace shell 313 is provided with deashing quick operating valve 319, and gas outlet pipe 37 is positioned at the top of card 34 and one end and stretches out that furnace shell 313 is outer to link to each other with dust-removal system.
Described dust-removal system includes negative pressure whirlpool fly-ash separator 2, the self cooling fly-ash separator 1 of one-level and the self cooling fly-ash separator 4 of secondary, the bottom of vapourizing furnace 3 is connected with negative pressure whirlpool fly-ash separator 2 by gas outlet pipe 37, the top of negative pressure whirlpool fly-ash separator 2 links to each other by the self cooling fly-ash separator 1 of pipeline and one-level, the top of the self cooling fly-ash separator 1 of one-level links to each other by the self cooling fly-ash separator 4 of pipeline and secondary, and the bottom of self cooling fly-ash separator 1 of one-level and the self cooling fly-ash separator 4 of secondary is provided with ash removing hole 20.
Described cooling and purifying system includes the thick scavenging tower 5 of one-level, the thick scavenging tower 6 of secondary, cooling tower 7, gas-water separation tower 8, scavenging tower 9, vinegar liquid tar pool 16, circulating water pool 21, water circulating pump 22, meticulous cleaner 11 and roots blower 10 indirectly, the self cooling fly-ash separator 4 of described secondary links to each other by the top of the thick scavenging tower 5 of pipeline and one-level, the thick scavenging tower 5 of one-level links to each other by the thick scavenging tower 6 of pipeline and secondary, and the thick scavenging tower 5 of one-level is provided with ash removing hole 20 with the bottom of the thick scavenging tower 6 of secondary.Cooling tower 7 is a vertical tubular heat exchange indirectly, be provided with tube side and shell side, the bottom of shell side links to each other with the thick scavenging tower 6 of secondary, the top of shell side is connected with gas-water separation tower 8, the inlet end of the tube side of cooling tower 7 is connected with water circulating pump 22 outlets by pipeline indirectly, the exit end of the tube side of cooling tower 7 is connected with circulating water pool 21 by pipeline indirectly, the top of gas-water separation tower 8 is connected with scavenging tower 9 by pipeline, gas-water separation tower 8 is provided with ash removing hole 20 with the bottom of scavenging tower 9, scavenging tower 9 links to each other the thick scavenging tower 6 of secondary by roots blower 10 with meticulous cleaner 11, indirect cooling tower 7, scavenging tower 9 is respectively arranged with ball valve 19 with the bottom of meticulous cleaner 11, ball valve 18, ball valve 17, ball valve 15 also links to each other with vinegar liquid tar pool 16 by ball valve.
Described distributing system includes total pipe network 13 of increase-volume transmission ﹠ distribution and sub-cylinder 12, and described meticulous cleaner 11 links to each other with the total pipe network 13 of increase-volume transmission ﹠ distribution by vacuum breaker 14, and the total pipe network 13 of increase-volume transmission ﹠ distribution links to each other with sub-cylinder 12 by pipeline.
The working process of biomass dry method gasification central gas supply system of the present invention is as follows:
One, the vapourizing furnace of working continuously:
The solid biologic raw material adds in the vapourizing furnace 3 from charging opening 314, under anoxic condition, by complicated thermal chemical reactions such as drying, preheating, pyrolysis, oxidation-reductions, changes into thick combustion gas.Fixedly water-cooled grate 36 is connected with the systemic circulation water pipe by fire grate cooling water inlet pipe 361, fire grate cooling water outlet pipe 362 and makes fire grate obtain cooling off; Moving grate 39 is placed on fixedly on the water-cooled grate 36, and can pass through deashing device 317 move left and right, so that remove after-flame dust stratification in the stove, water-cooled grate 36 coolings also can be fixed simultaneously.Fixedly water-cooled grate 36 is fixed on the cold wind interchanger 35, and cold wind interchanger 35 is fixed on the card 34, and 34 of cards are supported by lower supporting plate 33.Cold wind enters cold wind interchanger 35 by cold wind strainer 31 elimination dust foreign material, carry out heat exchange with the thick combustion gas of coming out in bottom in stove of high temperature, temperature is improved become hot blast, enter vapourizing furnace 3 by hot-air distributor 316 again, the gasification agent temperature of vapourizing furnace 3 is improved, can improve vapourizing furnace thermal chemical reaction temperature, help gasification and cracking, improve combustion gas quality greatly.Simultaneously, thick combustion gas after 35 heat exchange of cold wind interchanger reduce temperature, enters subsequent processing by card 34 by gas outlet pipe 37 from furnace bottom, can reduce the cooling apparatus load.The effect that the larynx type is built pipe 311 is to make on the furnace high-temperature zone of combustion to move, reduce fire grate place temperature, the fire grate heating temperature reduces like this, the indeformable damage of continuously-running, can drive moving grate 39 move left and right by deashing device 317 again and remove after-flame dust stratification in the stove, can reach the purpose that vapourizing furnace is worked continuously and moved.
Two, dedusting:
The thick combustion gas of high temperature of coming out from vapourizing furnace 3 at first enters dust-removal system, removes the dust of larger particles in the thick combustion gas via negative pressure whirlpool fly-ash separator 2.After 2 dedustings of negative pressure whirlpool fly-ash separator, thick combustion gas enters the self cooling fly-ash separator 1,4 of two-stage, here by art breading such as circuitous collision, speed change sedimentations, 95% dust in the thick combustion gas can be removed, and is deposited in device bottom, and the while can make thick combustion gas naturally cooling.The dust that settles down is regularly drawn out by the ash removing hole 20 of device bottom.Can be used as good farm manure.
Three, cooling and purifying:
Be introduced into the thick scavenging tower 5,6 of two-stage through the thick combustion gas of dust removal process, the tar that the fine ash content in the thick combustion gas and condensation are got off is adsorbed on the filler, and the bottom also has wood vinegar to separate out simultaneously.Wood vinegar enters vinegar liquid tar pool 16 by ball valve 19 when blowing out.Filler also must regularly replace.Thick combustion gas through thick purifying treatment enters indirect cooling tower 7, cooling tower 7 is a vertical tubular heat exchange indirectly, and shell side is walked in thick combustion gas, walks tube side by the water coolant that the water circulating pump 22 that is installed in the circulating water pool 21 is supplied with, for improving the coefficient of heat transfer, tube side is designed to 4 strokes.Thick combustion gas here is cooled to about 40 ° of C.At this moment, because of gas is further cooled, moisture and tar in the gas are condensed, and the water cooler shell side has more diluted tar and produces.But because of in this indirect cooler, heat-eliminating medium and be to walk tube side and shell side respectively by cold medium, Gu Lengquejiezhishui can be not contaminated, and wood vinegar that condensation is got off in the combustion gas and tar are put into vinegar liquid tar pool 16 by ball valve 18.Thick combustion gas after being cooled is removed fine water droplet and oil droplet through gas-water separation tower 8 earlier, enters scavenging tower 9 again, does further purifying treatment.In order to ensure the burnt particle concentration of combustion gas at 10mg/Nm
3Below, the combustion gas of handling through multiple purifying is sent in the meticulous cleaner 11 through roots blower, here by art breading such as atomizing, bumps, fall into a trap superfine contaminant particles of combustion gas is separated, again by the filtering of high molecular weight steric glue filter membrane, just can obtain high-grade smart combustion gas, combustion gas is simultaneously naturally cooled to 35 ° of C and is once entered in the gas storage facility increase-volume transmission ﹠ distribution total pipeline 13 in aforesaid device.The tar that is separated, wood vinegar and micronic dust enter in the vinegar liquid tar pool 16 by ball valve 15.Mixture in the vinegar liquid tar pool 16 is easy to be separated into wood tar oil and wood vinegar, and the both is good industrial chemicals.So native system can not produce sewage in gas-making process, and the industrial chemicals of commercial value can be arranged very.
Four, transmission ﹠ distribution
Smart combustion gas after dedusting, cooling and purifying are handled is sent into increase-volume transmission ﹠ distribution total pipeline 13 by roots blower 10, and is pressurized to P≤0.09Mpa, and the diameter of total pipeline and length are calculated according to the combustion gas number of users.After combustion gas is transported to each sub-district or customer group, be assigned to the user by sub-cylinder 12.
Claims (4)
1. biomass dry method gasification central gas supply system, it is characterized in that it being by vapourizing furnace (3), dust-removal system, cooling and purifying system and distributing system are formed, described dust-removal system includes negative pressure whirlpool fly-ash separator (2), self cooling fly-ash separator of one-level (1) and the self cooling fly-ash separator of secondary (4), described cooling and purifying system includes the thick scavenging tower of one-level (5), the thick scavenging tower of secondary (6), indirect cooling tower (7), gas-water separation tower (8), scavenging tower (9), vinegar liquid tar pool (16), circulating water pool (21), water circulating pump (22), meticulous cleaner (11) and roots blower (10), described distributing system includes total pipe network of increase-volume transmission ﹠ distribution (13) and sub-cylinder (12)
Described vapourizing furnace (3) is connected with negative pressure whirlpool fly-ash separator (2) by gas outlet pipe (37), the top of negative pressure whirlpool fly-ash separator (2) is by pipeline and the self cooling fly-ash separator (1 of two-stage, 4) link to each other, the self cooling fly-ash separator (1 of two-stage, 4) by pipeline and the thick scavenging tower (5 of two-stage, 6) link to each other, cooling tower (7) is provided with tube side and shell side indirectly, the bottom of shell side links to each other with the thick scavenging tower of secondary (6), the top of shell side is connected with gas-water separation tower (8), indirectly the inlet end of the tube side of cooling tower (7) exports by pipeline and water circulating pump (22) among being installed in circulating water pool (21) and is connected, the exit end of the tube side of cooling tower (7) is connected with circulating water pool 21 by pipeline indirectly, the top of gas-water separation tower (8) is connected with scavenging tower (9) by pipeline, scavenging tower (9) links to each other with meticulous cleaner (11) by roots blower (10), meticulous cleaner (11) links to each other with the total pipe network of increase-volume transmission ﹠ distribution (13) by vacuum breaker (14), the total pipe network of increase-volume transmission ﹠ distribution (13) links to each other with sub-cylinder (12) by pipeline, the thick scavenging tower of secondary (6), indirect cooling tower (7) shell side, scavenging tower (9) is provided with ball valve and is connected the self cooling fly-ash separator of two-stage with vinegar liquid tar pool (16) by ball valve with the bottom of meticulous cleaner (11), the thick scavenging tower of two-stage, gas-water separation tower (8) is provided with ash removing hole (20) with the bottom of scavenging tower (9).
2. biomass dry method gasification central gas supply system according to claim 1, it is characterized in that described vapourizing furnace (3) includes furnace shell (313), be provided with thermal insulation layer (312) in the furnace shell (313), the lower inside of furnace shell (313) respectively is welded with the circumferentially uniform upper backup pad (38) in 16 edges and 12 circumferential uniform lower supporting plates (33) in edge up and down, in the thermal insulation layer (312) is cavity body (320), be provided with the larynx type in the cavity body (320) and build pipe (311), the larynx type is built between pipe (311) and the upper backup pad (38) and is provided with annular sealing-ring (310), the top of lower supporting plate (33) is provided with card (34), be installed with cold wind interchanger (35) on the card (34), cold wind interchanger (35) the one ends cold wind strainer (31) outside with being arranged on furnace shell (313) links to each other, the other end links to each other with the hot-air distributor (316) that is arranged on vapourizing furnace cavity body (320) top by pipeline, the top of cold wind interchanger (35) is equipped with fixedly water-cooled grate (36), fixedly the two ends of water-cooled grate (36) are respectively arranged with fire grate cooling water inlet pipe (361) and fire grate cooling water outlet pipe (362), fire grate cooling water inlet pipe (361) is connected with the outlet of water circulating pump (22), fire grate cooling water outlet pipe (362) is connected with circulating water pool (21), fixedly on the water-cooled grate (36) moving grate (39) is installed, one end of moving grate (39) links to each other by the link gear deashing device (317) outside with being arranged on furnace shell (313) and passes through deashing device (317) move left and right, the below of cold wind interchanger (35) is provided with wind loop (32), the top of furnace shell (313) is provided with bell (315), bell (315) is connected by bolt with furnace shell (313), bell (315) is provided with charging opening (314), the bottom of furnace shell (313) is provided with deashing quick operating valve (319), the top of card (34) is equipped with gas outlet pipe (37), and an end of gas outlet pipe (37) stretches out outside the furnace shell (313).
3. biomass dry method gasification central gas supply system according to claim 1 is characterized in that described indirect cooling tower (7) is vertical tubular heat exchange.
4. biomass dry method gasification central gas supply system according to claim 1, the tube side that it is characterized in that described indirect cooling tower (7) is 4 strokes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010571834XA CN101993735B (en) | 2010-12-03 | 2010-12-03 | Biomass dry gasification centralized air supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010571834XA CN101993735B (en) | 2010-12-03 | 2010-12-03 | Biomass dry gasification centralized air supply system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101993735A true CN101993735A (en) | 2011-03-30 |
| CN101993735B CN101993735B (en) | 2013-01-23 |
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| CN201010571834XA Expired - Fee Related CN101993735B (en) | 2010-12-03 | 2010-12-03 | Biomass dry gasification centralized air supply system |
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Cited By (3)
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| CN102559284A (en) * | 2012-01-16 | 2012-07-11 | 贝洪毅 | Large-scale biomass gasification and destructive distillation gas making engineering purification system |
| CN104804776A (en) * | 2015-04-10 | 2015-07-29 | 东北大学 | Biomass gasification station capable of heating purification chamber |
| CN106906009A (en) * | 2017-03-29 | 2017-06-30 | 仟亿达集团股份有限公司 | Condensation purifier and biomass flue gas purification equipment |
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| EP1511823B1 (en) * | 2002-06-05 | 2010-04-21 | Izabella Bogacka | Indirectly heated waste plastic pyrolysis device |
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| CN101284995A (en) * | 2007-04-12 | 2008-10-15 | 陈天祥 | Biomass fuel gas gas-making method by dry method |
| CN101338205A (en) * | 2008-08-14 | 2009-01-07 | 周升阳 | Device for generating gas and fuel from solid combustible |
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| CN102559284A (en) * | 2012-01-16 | 2012-07-11 | 贝洪毅 | Large-scale biomass gasification and destructive distillation gas making engineering purification system |
| CN102559284B (en) * | 2012-01-16 | 2014-05-21 | 贝洪毅 | Large-scale biomass gasification and destructive distillation gas making engineering purification system |
| CN104804776A (en) * | 2015-04-10 | 2015-07-29 | 东北大学 | Biomass gasification station capable of heating purification chamber |
| CN106906009A (en) * | 2017-03-29 | 2017-06-30 | 仟亿达集团股份有限公司 | Condensation purifier and biomass flue gas purification equipment |
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| CN101993735B (en) | 2013-01-23 |
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