CN110591743A - Device and method for producing carbon by pyrolysis of rural biomass and integrating heat - Google Patents
Device and method for producing carbon by pyrolysis of rural biomass and integrating heat Download PDFInfo
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- CN110591743A CN110591743A CN201911008280.XA CN201911008280A CN110591743A CN 110591743 A CN110591743 A CN 110591743A CN 201911008280 A CN201911008280 A CN 201911008280A CN 110591743 A CN110591743 A CN 110591743A
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B53/00—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B53/00—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
- C10B53/02—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form of cellulose-containing material
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B57/00—Other carbonising or coking processes; Features of destructive distillation processes in general
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B57/00—Other carbonising or coking processes; Features of destructive distillation processes in general
- C10B57/005—After-treatment of coke, e.g. calcination desulfurization
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B57/00—Other carbonising or coking processes; Features of destructive distillation processes in general
- C10B57/08—Non-mechanical pretreatment of the charge, e.g. desulfurization
- C10B57/10—Drying
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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
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/10—Biofuels, e.g. bio-diesel
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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
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
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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
- Y02P20/141—Feedstock
- Y02P20/145—Feedstock the feedstock being materials of biological origin
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention relates to a device and a method for producing carbon by pyrolysis of rural biomass and heat integration. The device mainly comprises a crusher, a dryer, a compression granulator, an even feeder, a pyrolysis furnace, an adjusting tank, a carbon rod compressor, a carbon rod drying chamber, a waste heat boiler, a tail gas purification device and the like. The invention integrates crushing, drying, compression granulation, internal heating type pyrolysis, carbon rod compression, steam utilization and the like, mainly converts different types of rural biomass into high-quality biomass carbon particles or carbon rods, high-pressure steam or electricity and the like by an integration technology taking biomass internal heating type pyrolysis as a core, and finally the tail gas is treated by a purification device to reach the standard and be discharged outside. The invention not only provides an integrated technical route for high-quality and high-value utilization of rural biomass, but also provides a selectable alternative route for the material supply problem and the secondary pollution problem in biomass incineration power generation, so that the economic benefit and the environmental benefit of the rural biomass industry are obviously improved, and novel urbanization construction is powerfully promoted.
Description
Technical Field
The invention belongs to the technical field of rural biomass energy regeneration, and particularly relates to a device and a method for producing carbon by pyrolysis of rural biomass and integrating heat.
Background
Along with the improvement of living standard and the development of urbanization, the aggravation of environmental pollution such as haze and the improvement of environmental standard, the rural biomass with rich resources is not effectively utilized due to the lack of a reasonable absorption way, and becomes the treatment burden of farmers, and the phenomena of local burning, random accumulation and the like of the rural biomass such as straws and the like are increasingly serious, so that resource waste and rural environmental pollution are caused. In recent years, energy structure adjustment, gas change from coal, electricity change from coal and the like cause energy shortage of gas, electricity and the like and the characteristic of dispersibility in rural areas, and are difficult to popularize and develop in rural areas substantially. As direct-fired power generation for rural biomass energy regeneration, the biomass in rural areas in China is dispersive, low in energy density, large in required collection radiation radius, long in transportation distance and the like, so that the biomass in an incineration power plant is in shortage and is damaged. Compared with biomass pyrolysis gasification, the direct-fired power generation of biomass has the advantages of relatively large environmental pollution, single energy source, low quality and unsuitability for urbanization development.
Disclosure of Invention
The invention aims to solve the existing problems, provides a reasonable consumption way for the high-quality effective utilization of rural biomass, provides a device and a method for the carbon production and the heat integration of the rural biomass pyrolysis, integrates crushing, drying, compression granulation, pyrolysis, carbon rod compression, steam utilization, flue gas purification and the like, can convert rural biomass with different water contents and sizes into high-quality biomass carbon or carbon rods and high-pressure steam or electricity through a novel integrated technology which is suitable for small rural areas and takes the internal heating type pyrolysis of biomass as a core, the biomass carbon can be used for improving farmland soil, the carbon rods can replace coal to be used as clean fuel for living, heating, barbecue and the like, the high-pressure steam or electricity is used for heating and the like required by rural enterprises or farmers in winter, an integrated technical route is provided for rural biomass export and high-quality and high-value utilization, a selectable alternative route is provided for the material supply problem and the secondary pollution problem of biomass incineration power generation, and a novel industry is provided for novel urbanization construction and rural economic development.
In order to achieve the purpose, the technical scheme provided by the invention is as follows:
a device for producing carbon by pyrolysis of rural biomass and integrating heat comprises a feed hopper, a crusher, a dryer, a compression granulator, a uniform feeder, a pyrolysis furnace, an adjusting tank, a carbon rod compressor, a carbon rod drying chamber, a waste heat boiler, a tail gas purification device and a chimney;
rural biomass is conveyed to a crusher through a feed hopper, and is crushed and then enters a dryer for drying, flue gas required by the dryer is high-temperature flue gas generated after pyrolysis gas generated by a pyrolysis furnace is combusted, dried materials with the water content less than or equal to 25% are conveyed to a compression granulator for granulation, and formed biomass compressed particles are sold as products or are conveyed to the pyrolysis furnace in a closed mode through an even feeder;
the biomass compressed particles are conveyed to a pyrolysis chamber of a pyrolysis furnace through a uniform feeder in a closed manner for pyrolysis, biomass carbon particles and pyrolysis gas are generated through pyrolysis, the carbon particles can be directly sold as products or manufactured into carbon rods for sale, the pyrolysis gas firstly enters a primary combustion chamber for combustion, heat generated by combustion is used for self-supply of heat required in the pyrolysis chamber, flue gas discharged from the primary combustion chamber and unburned pyrolysis gas enter a secondary combustion chamber for sufficient combustion, a part of generated high-temperature flue gas enters a drying machine at the front end after the temperature of the generated high-temperature flue gas is adjusted, heat is provided for drying crushed biomass, and the rest of the generated high-temperature flue gas enters a waste heat boiler;
the carbon rod is prepared by the following specific operations: the biomass carbon granules enter an adjusting groove, are ground and crushed, then enter a carbon rod compressor after being added with a specific adhesive in proportion, and the prepared carbon rod is sent into a carbon rod drying chamber for drying, forming and selling;
steam generated by the waste heat boiler is sold or supplied to a generator for power generation, and tail gas is purified by the tail gas purification device and then is discharged out through the chimney after reaching the standard.
The pyrolysis furnace is an internally heated pyrolysis furnace integrating solid pyrolysis and pyrolysis gas combustion, the temperature of a pyrolysis chamber is controlled to be 350-fold 550 ℃, the temperature of an initial combustion chamber is controlled to be 700-fold 1000 ℃, and the temperature of a secondary combustion chamber is controlled to be 800-fold 1100 ℃.
The rural biomass comprises one or more of crop straws, forestry residues, agricultural product processing wastes, livestock and poultry manure and the like.
The particle size of the biomass compressed particles is 2-8 mm.
A rural biomass pyrolysis carbon production and heat integration method comprises the following steps:
a. rural biomass is conveyed to a crusher through a feed hopper, and is crushed and then enters a dryer for drying, flue gas required by the dryer is high-temperature flue gas generated after pyrolysis gas generated by a pyrolysis furnace is combusted, dried materials with the water content less than or equal to 25% are conveyed to a compression granulator for granulation, and formed biomass compressed particles are sold as products or are conveyed to the pyrolysis furnace in a closed mode through an even feeder;
b. the biomass compressed particles in the step a are conveyed to a pyrolysis chamber of a pyrolysis furnace through a uniform feeder in a closed manner for pyrolysis, biomass carbon particles and pyrolysis gas are generated through pyrolysis, the carbon particles can be directly sold as products or manufactured into carbon rods for sale, the pyrolysis gas firstly enters a primary combustion chamber for combustion, heat generated through combustion is used for self-supply of heat required in the pyrolysis chamber, flue gas discharged from the primary combustion chamber and unburned pyrolysis gas enter a secondary combustion chamber for sufficient combustion, a part of generated high-temperature flue gas is adjusted in temperature and then enters a drying machine at the front end to provide heat for drying of crushed biomass, and the rest of the generated high-temperature flue gas enters a waste heat boiler;
the carbon rod is prepared by the following specific operations: the biomass carbon granules enter an adjusting groove, are ground and crushed, then enter a carbon rod compressor after being added with a specific adhesive in proportion, and the prepared carbon rod is sent into a carbon rod drying chamber for drying, forming and selling;
c. steam generated by the waste heat boiler is sold or supplied to a generator for power generation, and tail gas is purified by the tail gas purification device and then is discharged out through the chimney after reaching the standard.
The pyrolysis furnace is an internally heated pyrolysis furnace integrating solid pyrolysis and pyrolysis gas combustion, the temperature of a pyrolysis chamber is controlled to be 350-fold 550 ℃, the temperature of an initial combustion chamber is controlled to be 700-fold 1000 ℃, and the temperature of a secondary combustion chamber is controlled to be 800-fold 1100 ℃.
The rural biomass comprises one or more of crop straws, forestry residues, agricultural product processing wastes, livestock and poultry manure and the like.
The particle size of the biomass compressed particles is 2-8 mm.
Compared with the prior art, the device and the method for producing carbon by pyrolyzing rural biomass and integrating heat have the following characteristics and beneficial effects:
according to the invention, by adopting an integrated technology which is suitable for small-sized regions of villages and small towns and takes biomass internal heating type pyrolysis as a core, rural biomass is converted into biomass charcoal or charcoal bars and combustible gas, and then converted into high-pressure steam or electricity, and the like, an integrated technical route is provided for high-quality and high-value utilization of rural biomass, a selectable alternative route is also provided for the material supply problem and the secondary pollution problem faced by biomass incineration power generation, the trend of rural biomass industry towards large-scale and industrialization is strong, the economic benefit and environmental benefit of the rural biomass industry are obviously improved, and novel urbanization construction is powerfully promoted.
Drawings
FIG. 1 is a schematic diagram of a device and a method for producing char by pyrolysis of biomass in rural areas and integrating heat according to an embodiment of the present invention.
1 a feed hopper; 2, a crusher; 3, a dryer; 4 compressing the granulator; 5, uniformly feeding the material; 6, a pyrolysis furnace; 7, adjusting a groove; 8 carbon rod compressor; 9 carbon rod drying chamber; 10, a waste heat boiler; 11 a flue gas purification device; 12 chimney.
Detailed Description
The invention provides a device and a method for producing carbon by pyrolysis of biomass in rural areas and thermal integration, and the detailed and complete description is provided for the specific technical method and the device of the invention by combining with the accompanying drawings and the specific embodiments, and the specific embodiments are only partial examples of the invention, but not all examples. All other examples obtained without inventive step by a person skilled in the art are within the scope of the invention.
As shown in fig. 1, an embodiment of the present invention provides a device for producing carbon and integrating heat by pyrolyzing biomass in rural areas, which includes a feed hopper 1, a crusher 2, a dryer 3, a compression granulator 4, a uniform feeder 5, a pyrolysis furnace 6, an adjusting tank 7, a carbon rod compressor 8, a carbon rod drying chamber 9, a waste heat boiler 10, a tail gas purification device 11, and a chimney 12;
rural biomass is conveyed to a crusher 2 through a feed hopper 1, crushed and then dried in a dryer 3, flue gas required by the dryer 3 is high-temperature flue gas generated by combustion of pyrolysis gas generated by a pyrolysis furnace 6, dried materials with the water content of less than or equal to 25% (generally, the water content can be below 15% after drying) are conveyed to a compression granulator 4 for granulation, and formed biomass compressed particles are sold as products or conveyed to the pyrolysis furnace 6 in a closed manner through an even feeder 5;
the biomass compressed particles are hermetically conveyed to a pyrolysis chamber A of a pyrolysis furnace 6 through a uniform feeder 5 for pyrolysis, biomass carbon particles and pyrolysis gas are generated through pyrolysis, the carbon particles can be directly sold as products or manufactured into carbon rods for sale, the pyrolysis gas firstly enters a primary combustion chamber B for combustion, heat generated through combustion is used for self-supply of heat required in the pyrolysis chamber A, smoke discharged from the primary combustion chamber B and unburned pyrolysis gas enter a secondary combustion chamber C for sufficient combustion, a part of the generated high-temperature smoke is adjusted in temperature and then enters a drying machine 3 at the front end to provide heat for drying of crushed biomass, and the rest of the generated high-temperature smoke enters a waste heat boiler 10;
the charcoal granules have wide application, can be used as soil improvement biochar such as carbon-based fertilizer, sewage adsorbent such as activated carbon and the like, and the charcoal rods can be used for multiple purposes such as barbecue charcoal or heating charcoal and the like;
the carbon rod is prepared by the following specific operations: the biomass carbon granules enter an adjusting groove 7, are ground and crushed, then enter a carbon rod compressor 8 after being added with a specific adhesive in proportion, and the prepared carbon rod is sent into a carbon rod drying chamber 9 for drying, forming and selling;
the carbon rods can be designed into carbon rods with different sizes and different shapes according to actual requirements, tests show that the ash content of the carbon rods is less than or equal to 3%, the low calorific value of the carbon rods is more than or equal to 6500kcal/kg, and the like, and compared with the conventional carbon, the carbon rods have the advantages that the using effect is even better, and the size and the shape of the carbon rods can be flexibly designed.
Steam generated by the waste heat boiler 10 is sold or supplied to a generator for power generation, and tail gas is purified by the tail gas purification device 11 and then is discharged out through the chimney 12 after reaching the standard.
The pyrolysis furnace 6 is an internally heated pyrolysis furnace integrating solid pyrolysis and pyrolysis gas combustion, the internal combustion temperature of the pyrolysis chamber A is controlled to be 350-fold 550 ℃, the temperature of the initial combustion chamber B is controlled to be 700-fold 1000 ℃, the heat of the combustion of the initial combustion chamber is mainly used for providing heat for the pyrolysis chamber, and the temperature of the reburning chamber C is controlled to be 800-fold 1100 ℃. As the water content, the size and the like of biomass materials in different rural areas are different, the pyrolysis and combustion temperatures float to some extent, in general, the combustion temperature in the pyrolysis chamber A is controlled to be 500-.
The rural biomass comprises one or more of crop straws, forestry residues, agricultural product processing wastes, livestock and poultry manure and the like.
Crop stalks such as corn, cotton, and the like; forestry residues such as wood residues (such as sawdust, branches and the like), bamboo residues (bamboo branches, bamboo scraps and the like), herbaceous fruit residues (such as coconut shells, fruit shells and the like) and the like; agricultural product processing waste (such as corncob and rice hull) and the like.
The particle size of the biomass compressed particles is 2-8 mm.
The rural biomass resources are rich, but the environmental pollution problem is increasingly serious due to low dispersibility and energy density of the rural biomass and relatively large environmental pollution, so that the rural biomass resources become burdens on vast rural urbanized roads. The device and the method for producing carbon by pyrolyzing the rural biomass and integrating heat, which are provided by the invention, provide a reasonable consumption way for high-quality and effective utilization of the rural biomass, change waste into valuable and provide a new way for development of rural biomass industry.
Crushing, drying, compressing and granulating, pyrolyzing, carbon rod compressing, steam utilizing, flue gas purifying and the like are integrated into a whole, and rural biomass such as crop straws with different water contents and sizes, forestry residues, agricultural product processing wastes, livestock and poultry manure and the like can be converted into high-quality biomass carbon or carbon rods and high-pressure steam or electricity by an integration technology which is suitable for small villages and small towns and takes novel biomass internal heating type pyrolysis as a core; the biomass charcoal can be used for improving farmland soil; the carbon rod can replace coal to be used as clean fuel for life, heating, barbecue and the like; the high-pressure steam or electricity is used for heating in rural, rural and township enterprises or farmers in winter. An integrated technical route is provided for high-quality and high-value utilization of rural biomass, a selectable alternative route is provided for the material supply problem and the secondary pollution problem of biomass incineration power generation, and the rural biomass industry is strong in development towards large scale and industrialization direction, so that the economic benefit and the environmental benefit of the rural biomass industry are remarkably improved, and novel urbanization construction is powerfully promoted.
Claims (8)
1. The utility model provides a device that rural living beings pyrolysis carbon production and heat integrated, its characterized in that: comprises a feed hopper (1), a crusher (2), a dryer (3), a compression granulator (4), a uniform feeder (5), a pyrolysis furnace (6), an adjusting tank (7), a carbon rod compressor (8), a carbon rod drying chamber (9), a waste heat boiler (10), a tail gas purification device (11) and a chimney (12);
rural biomass is conveyed to a crusher (2) through a feed hopper (1), crushed and then enters a dryer (3) for drying, flue gas required by the dryer (3) is high-temperature flue gas generated after pyrolysis gas generated by a pyrolysis furnace (6) is combusted, dried materials with the water content of less than or equal to 25% are conveyed to a compression granulator (4) for granulation, and formed biomass compressed particles are sold as products or conveyed to the pyrolysis furnace (6) in a closed mode through an even feeder (5);
the biomass compressed particles are hermetically conveyed to a pyrolysis chamber (A) of a pyrolysis furnace (6) through a uniform feeder (5) for pyrolysis, biomass carbon particles and pyrolysis gas are generated by pyrolysis, the carbon particles can be directly sold as products or made into carbon rods for sale, the pyrolysis gas firstly enters a primary combustion chamber (B) for combustion, heat generated by combustion is used for self-supply of heat required in the pyrolysis chamber (A), flue gas discharged from the primary combustion chamber (B) and unburned pyrolysis gas enter a secondary combustion chamber (C) for sufficient combustion, part of the generated high-temperature flue gas is adjusted in temperature and then enters a drying machine (3) at the front end to provide heat for drying of broken biomass, and the rest of the generated high-temperature flue gas enters a waste heat boiler (10);
the carbon rod is prepared by the following specific operations: the biomass carbon granules enter an adjusting groove (7), are ground and crushed, then enter a carbon rod compressor (8) after being added with a specific adhesive in proportion, and the prepared carbon rod is sent into a carbon rod drying chamber (9) for drying, forming and selling;
steam generated by the waste heat boiler (10) is sold or supplied to a generator for power generation, and tail gas is purified by the tail gas purification device (11) and then discharged out through the chimney (12) after reaching the standard.
2. The device for rural biomass pyrolysis carbon production and thermal integration according to claim 1, characterized in that: the pyrolysis furnace (6) is an internally heated pyrolysis furnace integrating solid pyrolysis and pyrolysis gas combustion, the temperature of the pyrolysis chamber (A) is controlled to be 350-.
3. The device for rural biomass pyrolysis carbon production and thermal integration according to claim 1, characterized in that: the rural biomass comprises one or more of crop straws, forestry residues, agricultural product processing wastes, livestock and poultry manure and the like.
4. The device for rural biomass pyrolysis carbon production and thermal integration according to claim 1, characterized in that: the particle size of the biomass compressed particles is 2-8 mm.
5. A rural biomass pyrolysis carbon production and heat integration method is characterized by comprising the following steps:
a. rural biomass is conveyed to a crusher (2) through a feed hopper (1), crushed and then enters a dryer (3) for drying, flue gas required by the dryer (3) is high-temperature flue gas generated after pyrolysis gas generated by a pyrolysis furnace (6) is combusted, dried materials with the water content of less than or equal to 25% are conveyed to a compression granulator (4) for granulation, and formed biomass compressed particles are sold as products or conveyed to the pyrolysis furnace (6) in a closed mode through an even feeder (5);
b. the biomass compressed particles in the step a are hermetically conveyed to a pyrolysis chamber (A) of a pyrolysis furnace (6) through a uniform feeder (5) for pyrolysis, biomass carbon particles and pyrolysis gas are generated by pyrolysis, the carbon particles can be directly sold as products or made into carbon rods for sale, the pyrolysis gas firstly enters a primary combustion chamber (B) for combustion, heat generated by combustion is used for self-supply of heat required in the pyrolysis chamber (A), flue gas discharged from the primary combustion chamber (B) and unburned pyrolysis gas enter a secondary combustion chamber (C) for full combustion, part of the generated high-temperature flue gas is adjusted in temperature and then enters a dryer (3) at the front end to provide heat for drying of crushed biomass, and the rest of the generated high-temperature flue gas enters a waste heat boiler (10);
the carbon rod is prepared by the following specific operations: the biomass carbon granules enter an adjusting groove (7), are ground and crushed, then enter a carbon rod compressor (8) after being added with a specific adhesive in proportion, and the prepared carbon rod is sent into a carbon rod drying chamber (9) for drying, forming and selling;
c. steam generated by the waste heat boiler (10) is sold or supplied to a generator for power generation, and tail gas is purified by the tail gas purification device (11) and then discharged out through the chimney (12) after reaching the standard.
6. The rural biomass pyrolysis carbon production and heat integration method according to claim 5, characterized in that: the pyrolysis furnace (6) is an internally heated pyrolysis furnace integrating solid pyrolysis and pyrolysis gas combustion, the temperature of the pyrolysis chamber (A) is controlled to be 350-.
7. The rural biomass pyrolysis carbon production and heat integration method according to claim 5, characterized in that: the rural biomass comprises one or more of crop straws, forestry residues, agricultural product processing wastes, livestock and poultry manure and the like.
8. The rural biomass pyrolysis carbon production and heat integration method according to claim 5, characterized in that: the particle size of the biomass compressed particles is 2-8 mm.
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| CN111171874A (en) * | 2020-03-05 | 2020-05-19 | 江西昌昱实业有限公司 | Process for preparing synthetic gas or fuel gas by moving bed pure oxygen continuous gasification furnace for cow dung raw material |
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| CN114774144A (en) * | 2022-04-11 | 2022-07-22 | 陈奇 | High-temperature carbonization furnace |
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| US20130232856A1 (en) * | 2012-03-09 | 2013-09-12 | William Rex Clingan | Process for production of fuels and chemicals from biomass feedstocks |
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| US20130232856A1 (en) * | 2012-03-09 | 2013-09-12 | William Rex Clingan | Process for production of fuels and chemicals from biomass feedstocks |
| CN103242869A (en) * | 2013-05-09 | 2013-08-14 | 南京师范大学 | Device and method for pyrolyzing and carbonizing biomass at low temperature by utilizing boiler flue gas |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111203143A (en) * | 2020-01-14 | 2020-05-29 | 南京万德斯环保科技股份有限公司 | Soil conditioner preparation system of living beings charcoal coupling microorganism |
| CN111203143B (en) * | 2020-01-14 | 2022-05-03 | 南京万德斯环保科技股份有限公司 | Soil conditioner preparation system of living beings charcoal coupling microorganism |
| CN111171874A (en) * | 2020-03-05 | 2020-05-19 | 江西昌昱实业有限公司 | Process for preparing synthetic gas or fuel gas by moving bed pure oxygen continuous gasification furnace for cow dung raw material |
| CN111171874B (en) * | 2020-03-05 | 2021-07-09 | 梵境新能源科技(浙江)有限公司 | Process for preparing synthetic gas or fuel gas by moving bed pure oxygen continuous gasification furnace for cow dung raw material |
| CN114774144A (en) * | 2022-04-11 | 2022-07-22 | 陈奇 | High-temperature carbonization furnace |
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