CN105042620A - Technology for increasing temperature of hot burning tail gas of biomass - Google Patents
Technology for increasing temperature of hot burning tail gas of biomass Download PDFInfo
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- CN105042620A CN105042620A CN201510381750.2A CN201510381750A CN105042620A CN 105042620 A CN105042620 A CN 105042620A CN 201510381750 A CN201510381750 A CN 201510381750A CN 105042620 A CN105042620 A CN 105042620A
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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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- Gasification And Melting Of Waste (AREA)
Abstract
The invention discloses a technology for increasing the temperature of hot burning tail gas of biomass and aims at increasing the temperature of the hot burning tail gas of the biomass to expand the using range of the biomass. The technology for increasing the temperature of the hot burning tail gas of the biomass is implemented through the following steps in sequence that firstly, biomass fuel is sent into a gasifier; secondly, clean hot burning gas is gasified through the gasifier in a pyrolysis mode and enters a combustor; thirdly, part of the hot burning gas is used by a hot blast stove to be burned to exchange room-temperature air into hot air at the temperature of 500-900 DEG C to serve as the combustion air of the combustor; fourthly, after the hot burning gas of the biomass and the combustion hot air are mixed to be burned, the burnt tail gas can reach the temperature of 1300-1700 DEG C, and a kiln is heated; fifthly, heat exchange is conducted on the waste gas of the kiln and the like through an air heat exchanger, so that the room-temperature air is heated into the hot air, the hot air is led into the hot blast stove to be mixed with the room-temperature gas and is then heated to the temperature of 500-900 DEG C after heat exchange is conducted through the hot blast stove to become the combustible air, the waste gas obtained after heat exchange of the heat exchanger reaches the temperature of 150-200 DEG C and can be directly discharged into the air. The technology is suitable for industries of glass, ceramics, casting and the like.
Description
Technical field
Burning process after the gasification of biomass that the present invention relates to, more particularly, relates to the technique improving biomass thermal combustion exhaust temperature.
Background technology
Gasification technology be a kind of using agriculture and forestry organic waste material, wood leftover material etc. three refuse as raw material, pyrolysis or gasification mode is utilized to produce the technology of the clean combustion gas of high temperature, this combustion gas can be widely used in the combustion heating of the containers such as boiler, various different smelting furnace, tunnel kiln, pyrolysis oven, is applicable to the industries such as glass, pottery, casting, food.
Air venting after biomass combustion can reach boiler atmospheric emission standard in 2014, also reaches the Industrial Stoves pollutant atmospheric emission standard of the industries such as 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 changing atmospheric greenhouse gas discharging.Prior art is biomass fuel Thorough combustion, its ignition temperature is only 1200 DEG C-1300 DEG C, because many industry fields require high to ignition temperature, for aluminium melting kiln stove and glass furnace, ignition temperature requires up to 1500 DEG C-1700 DEG C, and living beings are due to calorific value not high (being only 3500kcal/kg-4500kcal/kg) itself, therefore iff biomass fuel Thorough combustion, its ignition temperature is only 1200 DEG C-1300 DEG C, does not meet temperature requirement.
Summary of the invention
The object of patent of the present invention is not enough for prior art, there is provided one to be easy to manufacture, can by biomass combustion temperature increase to 1300 DEG C-1700 DEG C, meet the new technology of aluminium melting kiln stove and the requirement of calcar stove ignition temperature completely, the present invention is realized by following steps:
A. biomass fuel is sent to biomass gasifying furnace;
B. gasification furnace pyrolytic gasification enters living beings burner special for net heat combustion gas;
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 it can be used as the combustion air of living beings burner special;
D. biomass thermal combustion gas with as after coordinating that combustion-supporting hot-air is mixed and fire, its burn after exhaust temperature can reach 1300 DEG C-1700 DEG C, this high-temperature hot tail gas heating kiln completes object technique;
E. the waste gas that kiln is discharged is heated into 600 DEG C of-900 DEG C of hot-airs through air heat exchanger heat exchange normal temperature air, these hot-airs are introduced into hot-blast stove and mix with normal temperature air, the designing requirement temperature of 500 DEG C-900 DEG C is promoted to again, the combustion air using it as living beings burner special after hot air furnace heat exchange; EGT after air heat exchanger heat exchange 150 DEG C-200 DEG C, in line enter air;
Described living beings are wooden class leftover pieces, stalk and wooden chaff etc.
Beneficial effect: 1, this technique is on the basis of existing gasification and pyrolysis, improve the exhaust temperature after burning, can make like this apply industry field can be more various and broad, also reduce the dependence to a fossil energy, can be described as a new generation clean energy resource mainly promote the use technology; 2, the present invention is provided with waste gas recycling technique, greatly improves the utilization rate of living beings.
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, kiln 4 and air heat exchangers 5.
Patent of the present invention is implemented as follows:
A. send biomass fuel to biomass gasifying furnace 1, described living beings are wooden class leftover pieces, stalk and wooden chaff etc.;
B. gasification furnace 1 pyrolysis gas dissolves clean hot combustion gas and enters living beings burner special 2;
C. hot-blast stove 3 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, using it as the combustion air of burner;
D. biomass thermal combustion gas with sent here by hot-blast stove 3 as coordinate combustion-supporting hot-air burner 2 is mixed fire after, exhaust temperature after its burning can reach 1300 DEG C-1700 DEG C, this high-temperature tail gas heating kiln 4 etc. realizes the techniques such as hot melt aluminium or glass, and the temperature value of tail gas controls by regulating hot combustion gas and combustion air flow by the temperature requirement that various processes is different;
E. kiln 4 is discharged 800 DEG C of-900 DEG C of waste gas, through air heat exchanger heat exchange, normal temperature air is heated into 600 DEG C of-900 DEG C of hot-airs, these hot-airs are introduced into hot-blast stove and mix with normal temperature air, the designing requirement temperature of 500 DEG C-900 DEG C is promoted to again after hot air furnace heat exchange, combustion air using it as living beings burner special, like this, the waste gas of high temperature just can recycle, and substantially increases the utilization to living beings; EGT after air heat exchanger heat exchange 150 DEG C-200 DEG C, in line enter air, can meet and avoid thermal pollution and environmental protection and energy saving requirement.
The high-temperature hot tail gas produced in above-mentioned technique not only can heating kiln, can also heating boiler, smelting furnace and pyrolysis oven etc., and technique is also the same.This invention is also applicable to the industries such as glass, pottery, casting, food.
Claims (2)
1. improve a technique for biomass thermal combustion exhaust temperature, it is characterized in that, complete through the following step 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, the combustion air using it as living beings burner special;
D. biomass thermal combustion gas with as the hot-air coordinated is mixed fire after, its burn after exhaust temperature can reach 1300 DEG C-1700 DEG C, this high-temperature hot tail gas heating kiln completes object technique;
E. the waste gas that kiln is discharged is heated into 600 DEG C of-900 DEG C of hot-airs through air heat exchanger heat exchange normal temperature air, these hot-airs are introduced into hot-blast stove and mix with normal temperature air, the designing requirement temperature of 500 DEG C-900 DEG C is promoted to again, the combustion air using it as living beings burner special after hot air furnace heat exchange; EGT after air heat exchanger heat exchange 150 DEG C-200 DEG C, in line enter air.
2. the technique of raising biomass thermal combustion exhaust temperature according to claim 1, it is characterized in that, described living beings are wooden class leftover pieces, stalk and wooden chaff.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510381750.2A CN105042620A (en) | 2015-06-28 | 2015-06-28 | Technology for increasing temperature of hot burning tail gas of biomass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510381750.2A CN105042620A (en) | 2015-06-28 | 2015-06-28 | Technology for increasing temperature of hot burning tail gas of biomass |
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| Publication Number | Publication Date |
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| CN105042620A true CN105042620A (en) | 2015-11-11 |
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| CN201510381750.2A Pending CN105042620A (en) | 2015-06-28 | 2015-06-28 | Technology for increasing temperature of hot burning tail gas of biomass |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104633922A (en) * | 2015-02-04 | 2015-05-20 | 湛江市燊力能源有限公司 | Process for increasing temperature of clean air generated by tail gas after biomass hot gas combustion |
| CN104654303A (en) * | 2014-12-30 | 2015-05-27 | 湛江市燊力能源有限公司 | Process for increasing temperature of tail gas of biomass hot combustion gas |
| CN104654304A (en) * | 2015-02-04 | 2015-05-27 | 湛江市燊力能源有限公司 | Process for increasing temperature of heat combustion tail gas of biomass |
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2015
- 2015-06-28 CN CN201510381750.2A patent/CN105042620A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104654303A (en) * | 2014-12-30 | 2015-05-27 | 湛江市燊力能源有限公司 | Process for increasing temperature of tail gas of biomass hot combustion gas |
| CN104633922A (en) * | 2015-02-04 | 2015-05-20 | 湛江市燊力能源有限公司 | Process for increasing temperature of clean air generated by tail gas after biomass hot gas combustion |
| CN104654304A (en) * | 2015-02-04 | 2015-05-27 | 湛江市燊力能源有限公司 | Process for increasing temperature of heat combustion tail gas of biomass |
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| WD01 | Invention patent application deemed withdrawn after publication | ||
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Application publication date: 20151111 |