CN118085907A - Thermal cracking carbonization process for biomass - Google Patents
Thermal cracking carbonization process for biomass Download PDFInfo
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- CN118085907A CN118085907A CN202410113993.7A CN202410113993A CN118085907A CN 118085907 A CN118085907 A CN 118085907A CN 202410113993 A CN202410113993 A CN 202410113993A CN 118085907 A CN118085907 A CN 118085907A
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- 238000003763 carbonization Methods 0.000 title claims abstract description 56
- 239000002028 Biomass Substances 0.000 title claims abstract description 49
- 238000004227 thermal cracking Methods 0.000 title claims abstract description 34
- 238000000034 method Methods 0.000 title claims abstract description 20
- 230000008569 process Effects 0.000 title claims abstract description 19
- 239000000463 material Substances 0.000 claims abstract description 45
- 238000002309 gasification Methods 0.000 claims abstract description 25
- 239000010902 straw Substances 0.000 claims abstract description 18
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 16
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 15
- 238000012545 processing Methods 0.000 claims abstract description 13
- 230000009467 reduction Effects 0.000 claims abstract description 7
- 230000005540 biological transmission Effects 0.000 claims abstract description 5
- 239000007789 gas Substances 0.000 claims description 87
- 238000002485 combustion reaction Methods 0.000 claims description 31
- 239000002994 raw material Substances 0.000 claims description 25
- 238000003860 storage Methods 0.000 claims description 20
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 18
- 238000010285 flame spraying Methods 0.000 claims description 18
- 238000006243 chemical reaction Methods 0.000 claims description 17
- 238000010438 heat treatment Methods 0.000 claims description 15
- 238000000746 purification Methods 0.000 claims description 15
- 239000000779 smoke Substances 0.000 claims description 15
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 14
- 238000000197 pyrolysis Methods 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 229910002091 carbon monoxide Inorganic materials 0.000 claims description 9
- 238000004891 communication Methods 0.000 claims description 9
- 239000000428 dust Substances 0.000 claims description 9
- 238000000605 extraction Methods 0.000 claims description 9
- 239000003546 flue gas Substances 0.000 claims description 9
- 239000000126 substance Substances 0.000 claims description 9
- 238000007254 oxidation reaction Methods 0.000 claims description 8
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 7
- 238000001035 drying Methods 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 7
- 239000001569 carbon dioxide Substances 0.000 claims description 6
- 239000005539 carbonized material Substances 0.000 claims description 6
- 239000002737 fuel gas Substances 0.000 claims description 6
- 238000005507 spraying Methods 0.000 claims description 6
- 230000003647 oxidation Effects 0.000 claims description 5
- 238000000889 atomisation Methods 0.000 claims description 4
- 239000012620 biological material Substances 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 238000011068 loading method Methods 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 238000005086 pumping Methods 0.000 claims description 3
- 238000012216 screening Methods 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 238000012546 transfer Methods 0.000 claims description 3
- 238000009423 ventilation Methods 0.000 claims description 3
- 238000010000 carbonizing Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 239000002699 waste material Substances 0.000 abstract description 3
- 230000006872 improvement Effects 0.000 abstract description 2
- 238000009776 industrial production Methods 0.000 abstract description 2
- 238000007670 refining Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 244000035744 Hura crepitans Species 0.000 description 1
- 206010021143 Hypoxia Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 230000001146 hypoxic effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
Classifications
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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
-
- 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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- 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 discloses a biomass thermal cracking carbonization process, which comprises the following steps of S1: the method comprises the following steps of (1) putting and processing biomass thermal cracking materials: the main equipment of the biomass thermal cracking carbonization gasification system comprises a feeding auger and a fixed bed for assembling, and the combined splicing of a part of auger equipment to be processed is realized according to a specified hardware link in the assembling stage, and the adopted special process of putting and processing biomass thermal cracking materials can provide 50 tons of steam per hour for industrial production for enterprises, so that the carbonization is effectively completed according to the transmission aspect of the auger, the cost saving and efficiency improvement are realized, the environment is protected, the double carbon emission reduction is realized, the clean energy is provided for the enterprises, the energy is saved, the production cost of the enterprises is reduced, and therefore, the carbon gas co-production is realized by utilizing the local waste straws, and the low-price air source is provided.
Description
Technical Field
The invention relates to the technical field of biomass thermal cracking, in particular to the field of friction-resistant materials in biomass thermal cracking.
Background
Thermal cracking (also known as pyrolysis or pyrolysis) of biomass, which generally refers to the process of producing coke, condensable liquid and gaseous products by heating biomass to raise the temperature in an anaerobic or hypoxic environment, is an important utilization form of biomass energy.
The utility model discloses a field biomass thermal cracking oil refining device based on solar heat collection and self-heating, which relates to a field biomass thermal cracking oil refining device based on solar heat collection and self-heating, and comprises a pulverizer, solar photo-thermal/photovoltaic equipment, a high-temperature baking chamber, a preheating sandbox, rotary cone type biomass thermal cracking equipment and a condensing system. The rotary cone type biomass thermal cracking equipment comprises a screw feeder, a rotary cone reactor, a combustion chamber, a cyclone separator, an electrostatic catcher, a double pipe heat exchanger, an oil storage tank and an air storage tank. The utility model utilizes solar energy and byproducts for baking pretreatment and cracking reaction heat supply, saves energy and production cost, and the biomass subjected to baking pretreatment is high in energy density, good in stability, concise and efficient in oil refining process.
But there are also the following problems:
1) In the aspect of traditional biomass pyrolysis, the traditional biomass pyrolysis is inconvenient to carry out pyrolysis processing, and a biomass pyrolysis carbonization gasification system cannot uniformly assemble corresponding pyrolysis carbonization data;
2) In addition, in the state of biomass thermal cracking, the biomass thermal cracking does not have an actual step in the application stage to guide personnel to conduct production guidance of biomass thermal cracking carbonized gas, so that small influence can be caused.
Disclosure of Invention
The invention aims to provide a biomass thermal cracking carbonization process, which solves the problems in the background art.
In order to achieve the above purpose, the present invention provides the following technical solutions: a thermal cracking carbonization process of biomass, comprising the following steps:
s1: throwing and processing biomass thermal cracking materials;
S2: density screening in the raw material treatment and transportation links;
s3: carbonizing and gasifying by a biomass gasification furnace;
S4: temperature control over the gas delivery and combustion stages;
S5: the gas in the gas storage tank in the carbonization engineering is further extracted;
S6: dust fall atomization eliminates dust.
As a preferred embodiment of the present invention: s1 specifically comprises the following steps: the first step: firstly, main equipment of the biomass thermal cracking carbonization gasification system comprises a charging auger and a fixed bed which are assembled, and in the assembling stage, according to the designated hardware link, a part of auger equipment to be processed is spliced in a combined mode, and then the hardware is correspondingly surrounded: ① surround: the materials of the suction gasifier, the condenser, the flue, the induced draft fan, the flame spraying head, the blanking auger and the control console are spliced uniformly;
And a second step of: the branching steps are as follows: ② The material is delivered through the bottom hopper position of the feeding auger (1), and raw materials are sequentially delivered into the carbonization treatment tower through the rotation state of the stirring screw arranged in the feeding auger, so that the carbonization principle is as follows:
Among the built-in materials of the air inlet and outlet fan, the main purpose of the air inlet and outlet fan is to differentiate the flue gas needing to be input along the inner space: the drying area is used for maintaining the dryness of the submitted carbonized objects, and discharging redundant water vapor after heating, the pyrolysis area is used for guaranteeing the drying and heating processing of the materials in the carbonization and gasification stage, in addition, the oxidation area is used as a joint ring in carbonization engineering and is used for forming the oxidization burning reaction of the input area of pyrolysis materials, so as to achieve carbonization and reduction, finally, the carbonized materials slide to the carbonization chamber, the materials are returned to the position of the blanking auger after being fed by the area of the blanking auger through the discharge port, and the carbonized materials enter the carbon loading hopper.
As a preferred embodiment of the present invention: s2 specifically comprises the following steps: the first step: firstly, the materials are selected as follows: selecting straws with the water content of biomass raw materials (straws) being less than or equal to 40%, wherein the average particle size of the processed straws is less than or equal to phi 15mm, and conveying the raw materials into a gasification furnace through a conveying device and a gasification furnace feeding device, and performing carbonization and gasification processing after a part of raw materials which are built in a high-temperature replacement way of a hearth are put into the raw materials in a part of areas;
And a second step of: the specific replacement stage is to rely on the transmission of a smoke pipeline of a safety valve, and after the conversion of a valve body of the safety valve, the gas raw materials with high temperature are placed into a position of an independent condenser to be conveyed to a region of a designated condenser, so that the separation is realized in the built-in gas purification stage, the temperature of the gas is reduced, and finally the gas is mutually matched according to the built-in material of the condenser and then is converted into the independent condenser, the replacement of the condenser is further realized, the temperature in the pipeline can be converted into the gas with normal temperature through the built-in high-temperature gas, in addition, the gas replacement of the built-in raw materials can be effectively realized through the safety valve state of each independent condenser, and the gas in the aspect of the condenser is placed into an external gas storage tank through a U-shaped conveying pipe above to be stored.
As a preferred embodiment of the present invention: s3 specifically comprises the following steps: the substances produced in the gas over the combustion phase are analyzed: temperature required for carbonization: first, the first step: the biomass is gasified in a gasification furnace at 800 ℃ and the generated smoke dust contains the following components: generating combustible gases such as CO, CH 4、H2 and the like, simultaneously generating a small amount of pyroligneous liquor (containing tar) and 25% of straw carbon, wherein the substances need to be classified respectively through materials purified by different substances;
Classification and purification aspects based on various types of materials: CO, CH 4、H2 are required to be respectively put into different consumption stages, and the CO can be combusted and converted into carbon dioxide in a combustion mode of a flame injector;
CH. CH 4、H2 is split-flow filtered by a formulated filter, and the generated pyroligneous liquor (containing tar) and 25% of straw carbon are stored by the putting state of the pyroligneous liquor for storage, and in addition, under the remote control of a control console below, a pipe for operating a specific pyroligneous liquor conveying pipe is used for pumping the liquid stored at the bottom of the air storage tank, and the liquid is further stored after being pumped to the outside.
As a preferred embodiment of the present invention: s4 specifically comprises the following steps: the generated fuel gas is conveyed into a boiler through a flue by a fan for combustion, and the combustion of the fuel gas is completed, so that the high-temperature replacement of the gas is completed to extract carbon monoxide gas;
It is highly efficient and it should be noted in combustion boilers that the rapid combustion and heat treatment of a part of the boiler, depending on the corresponding flame temperature between 1000 ℃ and 1300 ℃, is achieved in such a way that the replacement of the intermediate temperature in the combustion chamber communicates with the heat transfer inside, with the aim of ensuring the replacement heating of the biological material by a part of the personnel over the combustion ventilation phase.
As a preferred embodiment of the present invention: s5 specifically comprises the following steps: firstly, the user needs to follow the following steps: at this time, a user can realize the split-flow filtration of internal and external water vapor according to the built-in filter screen in the corresponding gas storage tank, in addition, the external fan can realize the exhaust of a part of flue gas along the position of the smoke pipe, in addition, the specific purification aspect of the internal and external gas is the gas which is transmitted to the gas storage tank around the smoke pipe, in order to reduce the internal and external circulation process of carbon monoxide gas, the gas in the position of the flame spraying head is possibly realized according to the position of the gas in the flame spraying head after the gas is pumped in by the smoke pipe and is communicated with the valve body of the safety valve, and thus, the carbon monoxide is converted into carbon dioxide after the consumption combustion is completed.
As a preferred embodiment of the present invention: s6 is specifically as follows: first, the first step: the generated flue gas needs to be extracted after being extracted, the extraction is realized by means of the placement of a specific flame spraying atomizing material direct flame spraying head, the extraction is realized by adopting the flame spraying head according to the position of a 2-tonnage steam boiler, the spraying conversion is realized after the high-temperature steam is atomized according to the structures of various boilers, then the connection is realized after the steam boilers are communicated, the communication is realized along the built-in atomizing material realizing the spraying communication structure, the inner and outer air replacement of the gas is realized above an upper draught fan and a lower draught fan in the communication state of the steam boiler, the purification conversion is realized after the corresponding gas replacement for the connection is converted into a specific connected area, the exhaust is realized along the position of a chimney under the rapid extraction state of a specified draught fan, and in addition, the internal and external conversion of the gas is realized on the stage of the internal and external purification of the steam boiler.
Compared with the prior art, the invention has the following beneficial effects:
1) The special process of throwing and processing the biomass thermal cracking material can provide 50 tons of steam per hour for enterprises for industrial production, effectively completes carbonization in terms of cost saving and efficiency improvement according to the transmission aspect of an auger, realizes double-carbon emission reduction, provides clean energy for enterprises, links energy sources and tension, reduces the production cost of the enterprises, realizes carbon gas co-production by utilizing local waste straws, completes low-price air source supply, and in addition, a drying area in the scheme cools the gas generated by atomization of the gas after being put in according to the water vapor, and enables the implementation of connection and differentiation of biological violent decomposition in the replacement stage of the completion temperature;
2) The 30 gasifiers arranged in the carbon gas co-production workshop can be used for producing 30 2 ton steam boilers, the modular design is convenient for realizing the quick installation of various modules, raw materials are saved, the efficiency is maximized, 7 ten thousand tons of straws are processed annually, the biomass thermal cracking carbonization treatment is formed, the splicing is realized by means of corresponding assembly structures, and the carbonization treatment for biological thermal cracking is realized by means of the splicing structures of various components;
3) The corresponding external oxidation area is used as a joint ring in carbonization engineering, is used for forming an oxidation burning reaction of a feeding area of pyrolysis materials, achieves carbonization reduction, finally slides to a carbonization chamber, returns to the position of a blanking auger after being fed by the area of the blanking auger, is directly fed into the position of the blanking auger, is put into a carbon filling hopper to realize the placement, realizes the environmental benefit of the materials at the position of the carbonization chamber by adopting the carbonization reduction position, can reduce the emission of CO2 by about 4 ten thousand tons each year, reduces the atmospheric pollution, and realizes the carbon gas CO-production by using a biomass gasification system in the long term, thereby realizing the waste utilization, reducing the atmospheric pollution and other future social environmental protection values.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:
FIG. 1 is a schematic flow chart of the present invention;
FIG. 2 is a schematic diagram of step S2 in the present invention;
FIG. 3 is a schematic diagram of the structure of the external condenser of the step S2 of the present invention;
FIG. 4 is a flow chart of step S3 of the present invention;
FIG. 5 is a schematic flow chart of the S5-S6 of the invention;
FIG. 6 is a flow chart of the step S6 of the present invention;
FIG. 7 is a schematic flow chart of the carbonization co-production step system of the present invention.
Detailed Description
Referring to fig. 1-7, the present invention provides the following technical solutions: the invention is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
In this embodiment: s1: throwing and processing biomass thermal cracking materials;
The first step: firstly, main equipment of the biomass thermal cracking carbonization gasification system comprises a charging auger and a fixed bed which are assembled, and in the assembling stage, according to the designated hardware link, a part of auger equipment to be processed is spliced in a combined mode, and then the hardware is correspondingly surrounded: ① surround: the materials of the suction gasifier, the condenser, the flue, the induced draft fan, the flame spraying head, the blanking auger and the control console are spliced uniformly;
And a second step of: the branching steps are as follows: ② The material is delivered through the bottom hopper position of the feeding auger (1), and raw materials are sequentially delivered into the carbonization treatment tower through the rotation state of the stirring screw arranged in the feeding auger, so that the carbonization principle is as follows:
Among the built-in materials of the air inlet and outlet fan, the main purpose of the air inlet and outlet fan is to differentiate the flue gas needing to be input along the inner space: the drying area is used for maintaining the dryness of the submitted carbonized objects, and discharging redundant water vapor after heating, the pyrolysis area is used for guaranteeing the drying and heating processing of the materials in the carbonization and gasification stage, in addition, the oxidation area is used as a joint ring in carbonization engineering and is used for forming the oxidization burning reaction of the input area of pyrolysis materials, so as to achieve carbonization and reduction, finally, the carbonized materials slide to the carbonization chamber, the materials are returned to the position of the blanking auger after being directly input into the blanking auger after being discharged from the area of the blanking auger through the discharge port, and the carbonized materials enter the carbon loading hopper again.
In this embodiment: s2: density screening in raw material treatment and transportation links:
the first step: firstly, the materials are selected as follows: selecting straws with the water content of biomass raw materials (straws) being less than or equal to 40%, wherein the average particle size of the processed straws is less than or equal to phi 15mm, and conveying the raw materials into a gasification furnace through a conveying device and a gasification furnace feeding device, and performing carbonization and gasification processing after a part of raw materials which are built in a high-temperature replacement way of a hearth are put into the raw materials in a part of areas;
And a second step of: the specific replacement stage is to rely on the transmission of a smoke pipeline of a safety valve, and after the conversion of a valve body of the safety valve, the gas raw materials with high temperature are placed into a position of an independent condenser to be conveyed to a region of a designated condenser, so that the separation is realized in the built-in gas purification stage, the temperature of the gas is reduced, and finally the gas is mutually matched according to the built-in material of the condenser and then is converted into the independent condenser, the replacement of the condenser is further realized, the temperature in the pipeline can be converted into the gas with normal temperature through the built-in high-temperature gas, in addition, the gas replacement of the built-in raw materials can be effectively realized through the safety valve state of each independent condenser, and the gas in the aspect of the condenser is placed into an external gas storage tank through a U-shaped conveying pipe above to be stored.
In this embodiment: s3: carbonization and gasification of biomass gasification furnace:
The substances produced in the gas over the combustion phase are analyzed: temperature required for carbonization: first, the first step: the biomass is gasified in a gasification furnace at 800 ℃ and the generated smoke dust contains the following components: generating combustible gases such as CO, CH4, H2 and the like, simultaneously generating a small amount of pyroligneous liquor (containing tar) and 25% of straw carbon, wherein the substances need to be classified respectively by materials purified by different substances;
Classification and purification aspects based on various types of materials: CO, CH4 and H2 are required to be respectively put into different consumption stages, and the CO can be combusted and converted into carbon dioxide in a combustion mode of a flame injector;
CH. CH4 and H2 are split-flow filtered by a formulated filter, and the generated pyroligneous liquor (containing tar) and 25% of straw carbon are stored by the putting state of the pyroligneous liquor for storage, and in addition, under the remote control of a control console below, a pipe for operating a specific pyroligneous liquor conveying pipe is used for pumping the liquid stored at the bottom of the air storage tank, and the liquid is further stored after being pumped to the outside.
In this embodiment: s4: temperature control over the gas delivery and combustion phases:
the generated fuel gas is conveyed into a boiler through a flue by a fan for combustion, and the combustion of the fuel gas is completed, so that the high-temperature replacement of the gas is completed to extract carbon monoxide gas;
It is highly efficient and it should be noted in combustion boilers that the rapid combustion and heat treatment of a part of the boiler, depending on the corresponding flame temperature between 1000 ℃ and 1300 ℃, is achieved in such a way that the replacement of the intermediate temperature in the combustion chamber communicates with the heat transfer inside, with the aim of ensuring the replacement heating of the biological material by a part of the personnel over the combustion ventilation phase.
In this embodiment: s5: the gas in the gas storage tank in the carbonization engineering is further extracted;
firstly, the user needs to follow the following steps: at this time, a user can realize the split-flow filtration of internal and external water vapor according to the built-in filter screen in the corresponding gas storage tank, in addition, the external fan can realize the exhaust of a part of flue gas along the position of the smoke pipe, in addition, the specific purification aspect of the internal and external gas is the gas which is transmitted to the gas storage tank around the smoke pipe, in order to reduce the internal and external circulation process of carbon monoxide gas, the gas in the position of the flame spraying head is possibly realized according to the position of the gas in the flame spraying head after the gas is pumped in by the smoke pipe and is communicated with the valve body of the safety valve, and thus, the carbon monoxide is converted into carbon dioxide after the consumption combustion is completed.
In this embodiment: s6: dust fall atomization and dust removal:
First, the first step: the generated flue gas needs to be extracted after being extracted, the extraction is realized by means of the placement of a specific flame spraying atomizing material direct flame spraying head, the extraction is realized by adopting the flame spraying head according to the position of a 2-tonnage steam boiler, the spraying conversion is realized after the high-temperature steam is atomized according to the structures of various boilers, then the connection is realized after the steam boilers are communicated, the communication is realized along the built-in atomizing material realizing the spraying communication structure, the inner and outer air replacement of the gas is realized above an upper draught fan and a lower draught fan in the communication state of the steam boiler, the purification conversion is realized after the corresponding gas replacement for the connection is converted into a specific connected area, the exhaust is realized along the position of a chimney under the rapid extraction state of a specified draught fan, and in addition, the internal and external conversion of the gas is realized on the stage of the internal and external purification of the steam boiler.
While the fundamental and principal features of the invention and advantages of the invention have been shown and described, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that while the present disclosure has been described in terms of embodiments, not every embodiment is intended to encompass only a single embodiment, and that such descriptions are provided for clarity only, and that one skilled in the art will recognize the present disclosure as a whole, in various embodiments
The technical solutions in the embodiments may also be combined appropriately to form other embodiments that can be understood by those skilled in the art.
Claims (7)
1. A thermal cracking carbonization process of biomass, comprising the following steps: s1: throwing and processing biomass thermal cracking materials;
S2: density screening in the raw material treatment and transportation links;
S3: carbonizing and gasifying the biomass gasification furnace;
S4: temperature control over the gas delivery and combustion stages;
S5: the gas in the gas storage tank in the carbonization engineering is further extracted;
S6: dust fall atomization eliminates dust.
2. A thermal cracking carbonization process of biomass according to claim 1, characterized in that: s1 specifically comprises the following steps: the first step: firstly, main equipment of the biomass thermal cracking carbonization gasification system comprises a charging auger and a fixed bed which are assembled, and in the assembling stage, according to the designated hardware link, a part of auger equipment to be processed is spliced in a combined mode, and then the hardware is correspondingly surrounded: ① surround: the materials of the suction gasifier, the condenser, the flue, the induced draft fan, the flame spraying head, the blanking auger and the control console are spliced uniformly;
And a second step of: the branching steps are as follows: ② The material is delivered through the bottom hopper position of the feeding auger (1), and raw materials are sequentially delivered into the carbonization treatment tower through the rotation state of the stirring screw arranged in the feeding auger, so that the carbonization principle is as follows:
Among the built-in materials of the air inlet and outlet fan, the main purpose of the air inlet and outlet fan is to differentiate the flue gas needing to be input along the inner space: the drying area is used for maintaining the dryness of the submitted carbonized objects, and discharging redundant water vapor after heating, the pyrolysis area is used for guaranteeing the drying and heating processing of the materials in the carbonization and gasification stage, in addition, the oxidation area is used as a joint ring in carbonization engineering and is used for forming the oxidization burning reaction of the input area of pyrolysis materials, so as to achieve carbonization and reduction, finally, the carbonized materials slide to the carbonization chamber, the materials are returned to the position of the blanking auger after being fed by the area of the blanking auger through the discharge port, and the carbonized materials enter the carbon loading hopper.
3. A thermal cracking carbonization process of biomass according to claim 1, characterized in that: s2 specifically comprises the following steps: the first step: firstly, the materials are selected as follows: selecting straws with the water content of biomass raw materials (straws) being less than or equal to 40%, wherein the average particle size of the processed straws is less than or equal to phi 15mm, and conveying the raw materials into a gasification furnace through a conveying device and a gasification furnace feeding device, and performing carbonization and gasification processing after a part of raw materials which are built in a high-temperature replacement way of a hearth are put into the raw materials in a part of areas;
And a second step of: the specific replacement stage is to rely on the transmission of a smoke pipeline of a safety valve, and after the conversion of a valve body of the safety valve, the gas raw materials with high temperature are placed into a position of an independent condenser to be conveyed to a region of a designated condenser, so that the separation is realized in the built-in gas purification stage, the temperature of the gas is reduced, and finally the gas is mutually matched according to the built-in material of the condenser and then is converted into the independent condenser, the replacement of the condenser is further realized, the temperature in the pipeline can be converted into the gas with normal temperature through the built-in high-temperature gas, in addition, the gas replacement of the built-in raw materials can be effectively realized through the safety valve state of each independent condenser, and the gas in the aspect of the condenser is placed into an external gas storage tank through a U-shaped conveying pipe above to be stored.
4. A thermal cracking carbonization process of biomass according to claim 1, characterized in that: s3 specifically comprises the following steps: the substances produced in the gas over the combustion phase are analyzed: temperature required for carbonization: first, the first step: the biomass is gasified in a gasification furnace at 800 ℃ and the generated smoke dust contains the following components: generating combustible gases such as CO, CH 4、H2 and the like, simultaneously generating a small amount of pyroligneous liquor (containing tar) and 25% of straw carbon, wherein the substances need to be classified respectively through materials purified by different substances;
Classification and purification aspects based on various types of materials: CO, CH 4、H2 are required to be respectively put into different consumption stages, and the CO can be combusted and converted into carbon dioxide in a combustion mode of a flame injector;
CH. CH 4、H2 is split-flow filtered by a formulated filter, and the generated pyroligneous liquor (containing tar) and 25% of straw carbon are stored by the putting state of the pyroligneous liquor for storage, and in addition, under the remote control of a control console below, a pipe for operating a specific pyroligneous liquor conveying pipe is used for pumping the liquid stored at the bottom of the air storage tank, and the liquid is further stored after being pumped to the outside.
5. A thermal cracking carbonization process of biomass according to claim 1, characterized in that: s4 specifically comprises the following steps: the generated fuel gas is conveyed into a boiler through a flue by a fan for combustion, and the combustion of the fuel gas is completed, so that the high-temperature replacement of the gas is completed to extract carbon monoxide gas;
It is highly efficient and it should be noted in combustion boilers that the rapid combustion and heat treatment of a part of the boiler, depending on the corresponding flame temperature between 1000 ℃ and 1300 ℃, is achieved in such a way that the replacement of the intermediate temperature in the combustion chamber communicates with the heat transfer inside, with the aim of ensuring the replacement heating of the biological material by a part of the personnel over the combustion ventilation phase.
6. A thermal cracking carbonization process of biomass according to claim 1, characterized in that: s5 specifically comprises the following steps: firstly, the user needs to follow the following steps: at this time, a user can realize the split-flow filtration of internal and external water vapor according to the built-in filter screen in the corresponding gas storage tank, in addition, the external fan can realize the exhaust of a part of flue gas along the position of the smoke pipe, in addition, the specific purification aspect of the internal and external gas is the gas which is transmitted to the gas storage tank around the smoke pipe, in order to reduce the internal and external circulation process of carbon monoxide gas, the gas in the position of the flame spraying head is possibly realized according to the position of the gas in the flame spraying head after the gas is pumped in by the smoke pipe and is communicated with the valve body of the safety valve, and thus, the carbon monoxide is converted into carbon dioxide after the consumption combustion is completed.
7. A thermal cracking carbonization process of biomass according to claim 1, characterized in that: s6 is specifically as follows: first, the first step: the generated flue gas needs to be extracted after being extracted, the extraction is realized by means of the placement of a specific flame spraying atomizing material direct flame spraying head, the extraction is realized by adopting the flame spraying head according to the position of a 2-tonnage steam boiler, the spraying conversion is realized after the high-temperature steam is atomized according to the structures of various boilers, then the connection is realized after the steam boilers are communicated, the communication is realized along the built-in atomizing material realizing the spraying communication structure, the inner and outer air replacement of the gas is realized above an upper draught fan and a lower draught fan in the communication state of the steam boiler, the purification conversion is realized after the corresponding gas replacement for the connection is converted into a specific connected area, the exhaust is realized along the position of a chimney under the rapid extraction state of a specified draught fan, and in addition, the internal and external conversion of the gas is realized on the stage of the internal and external purification of the steam boiler.
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