CN104633922A - Process for increasing temperature of clean air generated by tail gas after biomass hot gas combustion - Google Patents
Process for increasing temperature of clean air generated by tail gas after biomass hot gas combustion Download PDFInfo
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- CN104633922A CN104633922A CN201510069771.0A CN201510069771A CN104633922A CN 104633922 A CN104633922 A CN 104633922A CN 201510069771 A CN201510069771 A CN 201510069771A CN 104633922 A CN104633922 A CN 104633922A
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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Abstract
The invention discloses a process for increasing the temperature of clean air generated by tail gas after biomass hot gas combustion, and aims to increase the temperature of the clean air generated by biomass hot gas combustion and widen the use range of biomass. The process sequentially includes the steps: a feeding biomass fuels into a biomass gasification furnace; b performing pyrolysis gasification on the gasification furnace to form clean hot gas led into a special biomass combustor; c exchanging heat with normal-temperature air by combustion of part of the hot gas through a hot air furnace to form combustion-supporting air of the special biomass combustor at the temperature of 500-900 DEG C; d enabling the temperature of the tail gas generated after mixed combustion of the biomass hot gas and hot air matched with the biomass hot gas to reach 1300-1700 DEG C; e heating the normal-temperature clean air to reach the high temperature of 900-1300 DEG C after the high-temperature tail gas enters a high-temperature resistant air heat exchanger, and enabling the high-temperature clean air to enter a kiln; f exchanging heat with waste gas of the kiln by the air heat exchanger, mixing the waste gas into normal-temperature air, leading the waste gas into the hot air furnace for heat exchange and increasing the temperature of the air to 500-900 DEG C. The process is suitable for industries such as glass and casting.
Description
Technical field
The present invention relates to Biomass Energy Utilization field, more particularly, relate to a kind of technique promoting the temperature of the clean air that tail gas produces after the hot fuel gas buring of biomass molding fuel.
Background technology
Gasification technology is a kind of using the refuse such as agriculture and forestry organic waste material, wood leftover material as raw material, pyrolysis or gasification mode is utilized to produce the clean combustion gas of high temperature, this combustion gas can be widely used in the combustion heating of the container such as boiler, various different smelting furnace, oven dry kiln, tunnel type insulation kiln, glowing furnace, pyrolysis oven, is applicable to the industries such as glass, pottery, casting, food, papermaking and uses.Toxic emission after biomass fuel gas firing can reach the Industrial Stoves pollutant atmospheric emission standard of the industries such as boiler atmospheric emission standards in 2014 and pottery, aluminium, copper in 2010.Biomass fuel is environmental protection regenerative resource, it is the green energy resource that the whole world is widelyd popularize, in combustion can near " zero-emission "---namely without deslagging, smokelessly, without CO2 emission, the standard coal that biomass fuel per ton is alternative 0.7 ton-0.9 ton is the effective way reducing atmospheric greenhouse gas discharging.Prior art is biomass fuel Thorough combustion, calorific value due to biomass fuel itself is not high (being only 3500kcal/kg-4500kcal/kg), its ignition temperature is only 1200 DEG C-1300 DEG C, heat exchange becomes clean air temperature to only have less than 500 DEG C again, due to many industry field production technologies to ignition temperature require high while also to burning after tail gas cleanliness factor also have requirement for height, for the insulation glowing furnace of stainless steel production technology and ceramic oven, the temperature of their technological requirement clean air will reach more than 1150 DEG C, in other words these two industries just can not applying biological matter as heating raw, existing technique can only be utilize combustion of natural gas to heat.So existing technology limits a lot of similar industry to the utilization of living beings.
Summary of the invention
The object of patent of the present invention is not enough for prior art, and provide a kind of novel biomass burning process that can promote the temperature of the clean air that biomass combustion produces, the present invention comprises the following steps successively:
A. biomass fuel is sent to biomass gasifying furnace;
B. gasification furnace pyrolysis gas dissolves clean hot combustion gas and enters living beings burner special;
C. hot-blast stove utilizes the hot fuel gas buring of a part by after normal temperature air heat exchange, forms the hot-air of 500 DEG C-900 DEG C, and using it as the combustion air of burner;
D. biomass thermal combustion gas with as coordinate combustion-supporting hot-air burner is mixed fire after, its burn after exhaust temperature can reach 1300 DEG C-1700 DEG C;
E. 1300 DEG C of-1700 DEG C of high-temperature tail gas after burning are introduced high temperature resistant type air heat exchanger heat exchange, the normal temperature pure air introduced is heated 900 DEG C-1300 DEG C high temperature clean airs, then introduces kiln, realize baking, insulation, quenching production technology; EGT after high temperature resistant type air heat exchanger heat exchange 150 DEG C-200 DEG C, can in line enter air;
F. the waste gas of kiln is through air heat exchanger heat exchange, normal temperature air is become 600 DEG C of-900 DEG C of hot-airs, be mixed into normal temperature air again and introduce hot-blast stove, again can by the designing requirement temperature of air-lift unit to 500 DEG C-900 DEG C after hot air furnace heat exchange, and introduce living beings burner special and be used as combustion air; EGT after air heat exchanger heat exchange 150 DEG C-200 DEG C, can in line enter air;
Living beings described above are wooden class leftover pieces, stalk, wooden chaff etc.. agriculture and forestry discarded object.
Beneficial effect: 1, this technique is on the basis of existing gasification of biomass pyrolysis, improve the exhaust temperature after burning, just high temperature clean air can be produced again after heat exchange, can make like this apply industry field can be more various and broad, also reduce the dependence to a fossil energy, what can be described as the clean energy resource of a new generation mainly promotes the use technology; 2, this technique is provided with exhaust gas utilization technique, makes full use of the heat energy of biomass gasification fired generation, decreases thermal pollution and environmental protection and energy saving.
Accompanying drawing explanation
Accompanying drawing 1 is the process chart of patent of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, patent of the present invention is further described.
In the drawings, patent of the present invention is formed primarily of equipment such as biomass gasifying furnace 1, living beings burner special 2, hot-blast stove 3, high temperature resistant type air heat exchanger 4, kiln 5 and air heat exchangers 6.
Patent of the present invention in turn includes the following steps enforcement:
A. send biomass fuel to biomass gasifying furnace 1, described living beings are wooden class leftover pieces, stalk and wooden chaff etc.. agriculture and forestry discarded object;
B. gasification furnace 1 pyrolysis gas dissolves clean hot biological fuel gas and enters living beings burner special 2;
C. hot-blast stove 3 utilize a part of gasification furnace 1 to produce biomass thermal fuel gas buring by after normal temperature air heat exchange, form the hot-air of 500 DEG C-900 DEG C, and using its combustion air as living beings burner special 2 (air distribution with); 150 DEG C of-200 DEG C of waste gas that hot-blast stove produces enter air;
D. biomass thermal combustion gas with sent here by hot-blast stove 3 as the combustion air coordinated living beings burner special 2 is mixed fire after, its burn after exhaust temperature can reach 1300 DEG C-1700 DEG C;
E. high-temperature tail gas is introduced high temperature resistant type air heat exchanger 4 heat exchange again, after heat exchange, normal temperature pure air is heated into 900 DEG C-1300 DEG C high temperature clean airs, then blasts kiln 5, realize baking, insulation, quenching production technology; EGT after high temperature resistant type air heat exchanger heat exchange 150 DEG C-200 DEG C, directly can enter air; The temperature value of clean air controls by regulating hot combustion gas and combustion air flow by the temperature requirement that various processes is different;
F. kiln 5 waste gas of discharging 800 DEG C-900 DEG C is through air heat exchanger 6 heat exchange normal temperature air to 600 DEG C-900 DEG C, then these hot-airs are introduced hot-blast stove 3 again and are mixed with normal temperature air, again after hot air furnace heat exchange by the designing requirement temperature of air-lift unit to 500 DEG C-900 DEG C, and introduce living beings burner specials and be used as combustion air, this step process achieves the effect of waste gas recycling, makes full use of the heat energy of biomass gasification fired generation; And the EGT 150 DEG C-200 DEG C after air heat exchanger heat exchange, can in line enter air, can reach and avoid thermal pollution and environmental protection and energy saving requirement.
900 DEG C-1300 DEG C high temperature clean airs that above-mentioned technique produces also can complete the part manufacture craft of glass, food, papermaking by the container such as heating boiler, glowing furnace and pyrolysis oven, and the technique adopted is the same with the present invention.
Claims (2)
1. a technique for the temperature of the clean air that tail gas produces after promoting biomass thermal fuel gas buring, is characterized in that, comprise following process steps successively:
A. biomass fuel is sent to biomass gasifying furnace;
B. gasification furnace pyrolysis gas dissolves clean hot combustion gas and enters living beings burner special;
C. hot-blast stove utilizes the hot fuel gas buring of a part by after normal temperature air heat exchange, forms the hot-air of 500 DEG C-900 DEG C, and using it as the combustion air of burner;
D. biomass thermal combustion gas with as the combustion-supporting hot-air coordinated burner is mixed fire after, its burn after exhaust temperature can reach 1300 DEG C-1700 DEG C;
E. 1300 DEG C of-1700 DEG C of high-temperature tail gas after burning are introduced high temperature resistant type air heat exchanger heat exchange, the normal temperature pure air introduced is heated into 900 DEG C-1300 DEG C high temperature clean airs, then introduces kiln, realize the techniques such as baking, insulation, quenching; EGT after high temperature resistant type air heat exchanger heat exchange 150 DEG C-200 DEG C, can in line enter air;
F. the waste gas of kiln is through air heat exchanger heat exchange, normal temperature air is become 600 DEG C of-900 DEG C of hot-airs, be mixed into normal temperature air again and introduce hot-blast stove, again can by the designing requirement temperature of air-lift unit to 500 DEG C-900 DEG C after hot air furnace heat exchange, and introduce living beings burner special and be used as combustion air; EGT after air heat exchanger heat exchange 150 DEG C-200 DEG C, can in line enter air.
2. a kind of technique promoting the temperature of the clean air that tail gas produces after biomass thermal fuel gas buring according to claim 1, is characterized in that described living beings are the .. agriculture and forestry discarded objects such as wooden class leftover pieces, stalk, wooden chaff.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510069771.0A CN104633922A (en) | 2015-02-04 | 2015-02-04 | Process for increasing temperature of clean air generated by tail gas after biomass hot gas combustion |
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| CN201510069771.0A CN104633922A (en) | 2015-02-04 | 2015-02-04 | Process for increasing temperature of clean air generated by tail gas after biomass hot gas combustion |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105042573A (en) * | 2015-06-28 | 2015-11-11 | 广东噢美投资有限公司 | Technology for increasing temperature of hot burning tail gas of biomass |
| CN105042620A (en) * | 2015-06-28 | 2015-11-11 | 廉江市恒吉投资有限公司 | Technology for increasing temperature of hot burning tail gas of biomass |
| CN115143472A (en) * | 2022-09-01 | 2022-10-04 | 北京华宇辉煌生态环保科技股份有限公司 | Pyrolysis waste heat circulation-based solid waste garbage treatment system and method |
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| JP2006089628A (en) * | 2004-09-24 | 2006-04-06 | Ishikawajima Harima Heavy Ind Co Ltd | Gasifier equipment |
| CN101363067A (en) * | 2008-09-27 | 2009-02-11 | 袁长胜 | Combined double preheating device |
| CN102012029A (en) * | 2010-11-01 | 2011-04-13 | 广州迪森热能技术股份有限公司 | Heat-storing combustion apparatus and biomass gas heating system |
| CN203112762U (en) * | 2013-01-09 | 2013-08-07 | 合肥德博生物能源科技有限公司 | Biomass gas industrial kiln system |
| CN103288314A (en) * | 2012-03-02 | 2013-09-11 | 台湾洁净能源科技股份有限公司 | Substance heat treatment separation and energy recovery system |
| CN203949519U (en) * | 2014-06-19 | 2014-11-19 | 广东正鹏生物质能源科技有限公司 | A kind of biological fuel gas Industrial Stoves combustion system with flue gas waste heat-recovering |
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2015
- 2015-02-04 CN CN201510069771.0A patent/CN104633922A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006089628A (en) * | 2004-09-24 | 2006-04-06 | Ishikawajima Harima Heavy Ind Co Ltd | Gasifier equipment |
| CN101363067A (en) * | 2008-09-27 | 2009-02-11 | 袁长胜 | Combined double preheating device |
| CN102012029A (en) * | 2010-11-01 | 2011-04-13 | 广州迪森热能技术股份有限公司 | Heat-storing combustion apparatus and biomass gas heating system |
| CN103288314A (en) * | 2012-03-02 | 2013-09-11 | 台湾洁净能源科技股份有限公司 | Substance heat treatment separation and energy recovery system |
| CN203112762U (en) * | 2013-01-09 | 2013-08-07 | 合肥德博生物能源科技有限公司 | Biomass gas industrial kiln system |
| CN203949519U (en) * | 2014-06-19 | 2014-11-19 | 广东正鹏生物质能源科技有限公司 | A kind of biological fuel gas Industrial Stoves combustion system with flue gas waste heat-recovering |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105042573A (en) * | 2015-06-28 | 2015-11-11 | 广东噢美投资有限公司 | Technology for increasing temperature of hot burning tail gas of biomass |
| CN105042620A (en) * | 2015-06-28 | 2015-11-11 | 廉江市恒吉投资有限公司 | Technology for increasing temperature of hot burning tail gas of biomass |
| CN115143472A (en) * | 2022-09-01 | 2022-10-04 | 北京华宇辉煌生态环保科技股份有限公司 | Pyrolysis waste heat circulation-based solid waste garbage treatment system and method |
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Application publication date: 20150520 |