CN110699148A - Production method and equipment of biomass granular fuel - Google Patents
Production method and equipment of biomass granular fuel Download PDFInfo
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- CN110699148A CN110699148A CN201911094458.7A CN201911094458A CN110699148A CN 110699148 A CN110699148 A CN 110699148A CN 201911094458 A CN201911094458 A CN 201911094458A CN 110699148 A CN110699148 A CN 110699148A
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- 239000002028 Biomass Substances 0.000 title claims abstract description 107
- 239000000446 fuel Substances 0.000 title claims abstract description 53
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 52
- 238000001035 drying Methods 0.000 claims abstract description 67
- 239000002245 particle Substances 0.000 claims abstract description 44
- 238000003860 storage Methods 0.000 claims abstract description 35
- 239000002994 raw material Substances 0.000 claims abstract description 23
- 238000012216 screening Methods 0.000 claims abstract description 18
- 238000001816 cooling Methods 0.000 claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000008188 pellet Substances 0.000 claims description 18
- 239000000463 material Substances 0.000 claims description 14
- 238000003756 stirring Methods 0.000 claims description 13
- 238000002485 combustion reaction Methods 0.000 claims description 10
- 230000005540 biological transmission Effects 0.000 claims description 7
- 230000008901 benefit Effects 0.000 abstract description 8
- 238000000034 method Methods 0.000 description 11
- 239000008187 granular material Substances 0.000 description 10
- 238000001125 extrusion Methods 0.000 description 7
- 239000002023 wood Substances 0.000 description 4
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 238000010924 continuous production Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 239000000295 fuel oil Substances 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 239000011812 mixed powder Substances 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 2
- 235000007164 Oryza sativa Nutrition 0.000 description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 239000012752 auxiliary agent Substances 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000002737 fuel gas Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 235000009566 rice Nutrition 0.000 description 2
- 239000010902 straw Substances 0.000 description 2
- 238000005496 tempering Methods 0.000 description 2
- 235000017060 Arachis glabrata Nutrition 0.000 description 1
- 244000105624 Arachis hypogaea Species 0.000 description 1
- 235000010777 Arachis hypogaea Nutrition 0.000 description 1
- 235000018262 Arachis monticola Nutrition 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 241000282414 Homo sapiens Species 0.000 description 1
- 241000209140 Triticum Species 0.000 description 1
- 235000021307 Triticum Nutrition 0.000 description 1
- 240000008042 Zea mays Species 0.000 description 1
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 1
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 1
- 239000000227 bioadhesive Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 235000005822 corn Nutrition 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 235000020232 peanut Nutrition 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Classifications
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L5/00—Solid fuels
- C10L5/40—Solid fuels essentially based on materials of non-mineral origin
- C10L5/44—Solid fuels essentially based on materials of non-mineral origin on vegetable substances
- C10L5/445—Agricultural waste, e.g. corn crops, grass clippings, nut shells or oil pressing residues
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
- B01J2/22—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic by pressing in moulds or between rollers
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L5/00—Solid fuels
- C10L5/40—Solid fuels essentially based on materials of non-mineral origin
- C10L5/44—Solid fuels essentially based on materials of non-mineral origin on vegetable substances
- C10L5/442—Wood or forestry waste
-
- 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
-
- 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
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Agronomy & Crop Science (AREA)
- Engineering & Computer Science (AREA)
- Biodiversity & Conservation Biology (AREA)
- Ecology (AREA)
- Forests & Forestry (AREA)
- Wood Science & Technology (AREA)
- Solid Fuels And Fuel-Associated Substances (AREA)
Abstract
A production method of biomass granular fuel comprises the following production steps: (1) crushing the collected biomass raw materials by a crusher, and screening to obtain biomass particles with the particle size of less than 1 cm; (2) conveying the biomass particles into a drying roller, and drying by adopting hot air until the water content of the biomass particles is 10-13%; (3) separating the dried biomass particles by a cyclone separator, and feeding the biomass particles into a storage bin; (4) extruding biomass particles in the storage bin into biomass granular fuel by using a ring die forming machine; (5) and (3) conveying the molded biomass granular fuel to a storage frame while air cooling by adopting an air cooling conveying belt, and thus finishing the production of the biomass granular fuel. The production method has the advantages of simple production process, no limitation of the dryness and the humidity of the raw materials, less investment and high production efficiency.
Description
Technical Field
The invention relates to the technical field of biomass pellet fuel production, in particular to a production method and equipment of biomass pellet fuel.
Background
China is a large population country and a country with rapid economic development, and the 21 st century is under double pressure of economic growth and environmental protection. The rapid development of economy is not free from energy sources, and the problem of shortage of traditional fossil energy petroleum, natural gas and coal is increasingly serious. The energy problem is one of the decisive factors influencing the development of the social economy, the problem of solving the energy problem is the power problem of the economic development, the rapid development of the social economy is seriously influenced by the shortage of the conventional energy supply in China, and the fossil energy is intensively used in a large scale to release a large amount of substances such as carbon dioxide, sulfur dioxide, nitrogen oxide and the like to cause harm to the living environment of human beings, so that the development and research of renewable energy technology are greatly strengthened in all countries in the world. The biomass energy is used as the fourth energy source, and becomes an energy source with larger development potential in new energy sources by the characteristics of renewability, zero carbon emission and the like.
The biomass particle fuel belongs to a novel fuel which supports national popularization, can be automatically combusted and automatically controlled by a combustion engine like diesel oil and heavy oil, is as clean as fuel oil and fuel gas, and has only half of the cost of the fuel oil and the fuel gas. The biomass granular fuel is prepared from wood, corn stalks, wheat stalks, cotton stalks, rice straws, rice hulls, peanut shells, corncobs, branches, leaves, sawdust and other crops and solid wastes as raw materials by crushing, thermoplastic pressurizing and densification molding, and is a renewable resource. The publications also report some biomass pellet fuel production techniques, such as:
1. chinese patent: biomass particle production system, application No.: 201320501343.7, filing date: 2013.08.16, patentee: guangdong mega feng energy technology ltd, address: 519000 Tokyo Dazhu No. 288I district 17 of Bingmen district of Zhuhai City, Guangdong province, inventor: chenweiliang, Zhujinwu, Huxiangfeng, abstract: the utility model discloses a biomass particle production system, aim at providing a simple structure, low in production cost, the high and good biomass particle production system of combustion can of product uniformity. This living beings granule production system including the raw materials feed arrangement (1) that sets gradually, through first conveyor (2) with raw materials screening plant (3) that the discharge gate of raw materials feed arrangement (1) is connected, through second conveyor (4) with spiral vibrator (5) that the discharge gate of raw materials screening plant (3) is connected, through auger material feeding unit (6) with living beings granule forming device (7) that the discharge gate of spiral vibrator (5) is connected, through third conveyor (8) with granule separator (9) that the discharge gate of living beings granule forming device (7) is connected. The utility model discloses but wide application in living beings granule's manufacturing field.
2. Chinese patent: a production process of biomass pellet fuel, application number: 201811316216.3, filing date: 2018.11.07, Applicant: changxin, jiang and biomass fuels, inc, address: 225700 Industrial concentration district of New buttress Town in Tazhou city, Jiangsu province, inventor: grand sun, xu yi qin, abstract: the invention discloses a production process of biomass granular fuel, which relates to the technical field of production of biomass granular fuel and comprises the following steps: sl, raw material pretreatment: s2, drying and dedusting: s3, screening and distributing: s4, stirring and granulating: s5, dedusting and screening. Compared with the prior art, the invention has the advantages that a certain amount of adhesive is added in the stirring and granulating processes, so that the material has high adhesiveness and is not easy to crack in the granulating process, meanwhile, the adopted adhesive is an environment-friendly adhesive, so that the biomass granular fuel is convenient to pollute little during combustion, has low cost, is convenient to store, can inhibit the growth of bacteria and prevent the bacteria from mildewing, and a certain amount of coal powder is added in the stirring process, so that the combustion heat energy value of the biomass granules can be improved, and the combustion quality is enhanced.
3. Chinese patent: a preparation process of biomass pellet fuel, which has the following application numbers: 201611036548.7, filing date: 2016.11.23, Applicant: yaning county xin maoyuan biomass pellet fuel limited, address: 246100 Huangling village of Huang mountain town of Huaning county, Anqing, Anhui province, inventor: leaf spring, abstract: the invention discloses a preparation process of biomass granular fuel, which comprises the following steps: (1) spreading a biomass raw material to be processed on a dry, windproof and lightning-proof field for insolation, and cutting the biomass raw material into secondary raw materials with 2-3cm sections; (2) feeding the secondary raw materials cut into small sections into a crusher for crushing, and then fully stirring and uniformly mixing in a stirrer; (3) drying the mixed powder in a roller dryer; (4) crushing the dried mixed powder again, and then sending the crushed mixed powder into an extrusion forming granulator to be extruded into granules; (5) and (4) metering the prepared granules, putting the granules into a belt for packaging, and sending the granules into a finished product warehouse. The method has simple process flow, can quickly prepare the high-quality biomass granular fuel, has low production cost and high economic benefit, has the advantages of high combustion value and difficult slagging, and can be widely applied to various biomass combustion devices.
4. Chinese patent: production process and complete equipment of biomass pellet fuel, application number: 201110024969.9, filing date: 2011.01.24, Applicant: sichuan thunder biology environmental engineering Co., Ltd, address: 643012 Sichuan province, Shanghai Lihenlu No. 19, Daan district, Gong city, inventor: the Rejian nation, abstract: the invention discloses a production process and complete equipment of biomass pellet fuel, wherein the production process comprises the following steps: 1) crushing: crushing the biomass raw material to below 200 mm; 2) tempering and curing: the crushed biomass is stirred spirally, pressed and extruded, rubbed and kneaded and crushed mutually and crushed mechanically, the granularity and flexibility of the biomass are improved, the biomass is naturally heated in the process, and active organic matters such as binding water and tar in the biomass are extruded out to form a natural adhesive; 3) drying and stirring: stirring and drying the biomass raw material after the tempering and curing to control the water content of the biomass raw material to be 15-25%; 4) extrusion molding: obtaining biomass granular fuel with the granularity of less than 20 mm; 5) air cooling and drying: the water content of the biomass pellet fuel is controlled below 10%. The invention has the advantages of good production continuity, wide application range of biomass raw materials, low energy consumption, easy molding and high production efficiency, and the molded particles have small volume and are convenient to transport and store.
Application research shows that some production processes of the existing biomass granular fuel are too complicated, the resource waste is large, and some continuous production is difficult to realize.
Disclosure of Invention
The invention aims to provide a method and equipment for producing biomass granular fuel, which have the advantages of simple production process, no limitation of the dryness and the humidity of raw materials, low investment and high production efficiency.
In order to achieve the purpose, the invention adopts the following technical scheme:
a production method of biomass granular fuel comprises the following production steps:
(1) crushing the collected biomass raw materials by a crusher, and screening to obtain biomass particles with the particle size of less than 1 cm; the biomass raw materials comprise straws, branches, barks, wood sawdust and the like;
(2) conveying the biomass particles into a drying roller, and drying by adopting hot air of a hot-blast stove until the water content of the biomass particles is 10-13%;
(3) separating the dried biomass particles by a cyclone separator, and feeding the biomass particles into a storage bin;
(4) extruding biomass particles in the storage bin into biomass granular fuel by using a ring die forming machine;
(5) and (3) conveying the molded biomass granular fuel to a storage frame while air cooling by adopting an air cooling conveying belt, and thus finishing the production of the biomass granular fuel.
When the hot air is adopted for drying, the temperature of the hot air is 300-400 ℃, air cannot circulate in the drying roller, and the combustion of the biomass particles during drying is avoided. The biomass particles can be semi-carbonized by adopting the temperature drying, the biomass particles can be better extruded and molded by combining the dried water content, no auxiliary agent is added in the extrusion molding process, and the biomass particles are not easy to loosen after extrusion.
The equipment adopted in the production process of the biomass pellet fuel comprises a pulverizer, a screening machine, a hot blast stove, a drying roller, a cyclone separator, a ring die forming machine and a material storage frame, wherein a discharge port of the pulverizer is connected with a feed port of the screening machine through a conveying belt, a discharge port of the screening machine is connected with a drying cylinder inlet pipe of the drying roller through a feeding joint, and a tail gas pipe of the hot blast stove is also connected with the feeding joint; an outlet pipe of a drying cylinder of the drying roller is connected with a cyclone separator through a discharge port and a draught fan, a discharge port of the cyclone separator is connected with a storage bin, the storage bin is connected with an inlet of a ring die forming machine, and an outlet of the ring die forming machine is connected with a storage frame through an air-cooled conveying belt. The feeding connector and the discharging connector respectively wrap the inlet pipe and the outlet pipe of the drying cylinder in the drying cylinder, and a high-temperature-resistant sealing ring is erected between the inlet pipe and the outlet pipe, so that air is prevented from entering the drying cylinder when the drying cylinder rotates. The feeding of the feeding joint is realized by feeding through the star-shaped feeder, so that the air can be reduced or prevented from entering the drying cylinder along with the air during the feeding. The air-cooled conveyer belt can convey materials and blow cold air to blow and cool the materials. Both the ring molder and the air-cooled conveyor belts are commercially available.
The storage frame is a reticular breathable storage frame. The biomass granular fuel after extrusion is avoided still having the waste heat, and the heat dissipation capacity that netted ventilative storage frame can be timely. The bottom of the storage frame is an inverted V-shaped discharge hole, and a blanking device is arranged at the discharge hole, so that the biomass granular fuel can be discharged accurately.
The drying cylinder comprises a cylinder body, a supporting wheel frame and supporting wheels, wherein a transmission gear ring and idler wheels are arranged on the outer surface of the cylinder body, the idler wheels are arranged on the supporting wheels, the supporting wheels are arranged on the supporting wheel frame, the transmission gear ring is meshed with a gear on a rotating shaft of the motor, and an inlet pipe and an outlet pipe of the drying cylinder are respectively arranged at two ends of the cylinder body.
The inner wall of the drying cylinder is provided with a spiral stirring blade, and when the drying cylinder rotates, the spiral stirring blade conveys materials to an outlet pipe of the drying cylinder.
The production method of the biomass granular fuel has the advantages that:
1. the production method has the advantages of simple production process, no limitation of the dry and wet degree of the raw materials, less investment, adoption of a production mode of a production line, realization of continuous production, high production efficiency and capability of producing up to two tons of biomass granular fuels per hour.
2. The hot air temperature is 300-. The biomass particles can be semi-carbonized by adopting the temperature for drying, the water content of the biomass particles is controlled to be 10-13% by combining with the drying, the biomass particles can be better extruded and molded, no auxiliary agent is added in the extrusion molding process, the biomass particles are not easy to loosen after extrusion, the biomass particles are extruded and molded after being semi-carbonized, the biomass particles are fully combusted after entering a boiler, and the combustion efficiency is high.
Drawings
FIG. 1 is a schematic diagram of a production process of an embodiment;
fig. 2 is a schematic structural view of the drying drum of fig. 1;
FIG. 3 is a schematic view of the connection of the feed connection of FIG. 1;
the names of the sequence numbers in the figure are:
1. the device comprises a grinder, 2, a conveying belt, 3, a screening machine, 4, a conveying mechanism, 5, a feeding joint, 6, a tail gas pipe, 7, a hot blast stove, 8, a drying roller, 9, a discharging interface, 10, a draught fan, 11, a cyclone separator, 12, a storage bin, 13, a ring die forming machine, 14, an air-cooled conveying belt, 15, a storage frame, 16, a discharging port, 17, a blanking device, 18, a drying cylinder inlet pipe, 19, a cylinder body, 20, a supporting wheel frame, 21, a supporting wheel, 22, a roller, 23, a motor, 24, a transmission gear ring, 25, a spiral stirring blade, 26, a drying cylinder outlet pipe, 27, a star blanking device, 28 and a sealing ring.
Detailed Description
The following further describes in detail embodiments of the present invention with reference to the accompanying drawings.
Example 1:
the biomass granular fuel can be produced by the following steps:
(1) screening wood sawdust and taking biomass particles with the particle size of less than 1 cm.
(2) Conveying the biomass particles into a drying roller, and drying by adopting hot air until the water content of the biomass particles is 10-13%; the hot air temperature is 300-.
(3) And separating the dried biomass particles by a cyclone separator, and feeding the biomass particles into a storage bin.
(4) And extruding the biomass particles in the storage bin into biomass granular fuel by using a ring die forming machine.
(5) And (3) conveying the molded biomass granular fuel to a storage frame while air cooling by adopting an air cooling conveying belt, and thus finishing the production of the biomass granular fuel.
The equipment adopted in the production process of the biomass pellet fuel comprises a pulverizer 1, a screening machine 3, a hot blast stove 7, a drying roller 8, a cyclone separator 11, a ring mold forming machine 13 and a material storage frame 15, wherein a discharge port of the pulverizer 1 is connected with a feed port of the screening machine 3 through a conveying belt 2, a discharge port of the screening machine 3 is connected with a drying cylinder inlet pipe 18 of the drying roller 8 through a conveying mechanism 4 and a feeding joint 5, and a tail gas pipe 6 of the hot blast stove 7 is also connected with the feeding joint 5; an outlet pipe 26 of a drying drum of the drying drum 8 is connected with a cyclone separator 11 through a discharge port 9 and a draught fan 10, a discharge port of the cyclone separator 11 is connected with a storage bin 12, the storage bin 12 is connected with an inlet of a ring die forming machine 13, and an outlet of the ring die forming machine 13 is connected with a storage frame 15 through an air-cooled conveying belt 14. The material storage frame 15 is a reticular breathable material storage frame 15; the bottom of the material storage frame 15 is an inverted V-shaped material outlet 16, and a blanking device 17 is arranged on the material outlet 16. The inlet connector 5 and the outlet connector 9 respectively wrap the inlet pipe 18 and the outlet pipe 26 of the drying cylinder, and a high-temperature-resistant sealing ring 28 is arranged between the inlet pipe and the outlet pipe, so that air is prevented from entering the drying cylinder 8 when the drying cylinder 8 rotates. The feeding of the feeding joint 5 is carried out by the star-shaped feeder 27, so that the air entering the drying cylinder 8 along with the feeding can be reduced or avoided during the feeding.
The drying drum 12 comprises a drum body 19, a supporting roller frame 20 and a supporting roller 21, wherein a transmission gear ring 24 and a roller 22 are arranged on the outer surface of the drum body 19, the roller 22 is installed on the supporting roller 21, the supporting roller 21 is installed on the supporting roller frame 20, the transmission gear ring 24 is meshed with a gear on a rotating shaft of a motor 23, and a drying drum inlet pipe 18 and a drying drum outlet pipe 26 are respectively arranged at two ends of the drum body 19. The inner wall of the drying cylinder 12 is provided with a spiral stirring blade 25, and when the drying cylinder 12 rotates, the spiral stirring blade 25 conveys materials to an outlet pipe 26 of the drying cylinder.
Application examples
1. By adopting the method and the equipment, the Nanning boiler manufacturing company adopts wood sawdust to produce the biomass granular fuel, can produce about 2 tons of biomass granular fuel per hour, is not influenced by weather and the dryness and wetness degree of raw materials, and can realize continuous production as long as the raw materials are sufficient.
Claims (6)
1. A production method of biomass pellet fuel is characterized in that: the production steps are as follows:
(1) crushing the collected biomass raw materials by a crusher, and screening to obtain biomass particles with the particle size of less than 1 cm;
(2) conveying the biomass particles into a drying roller, and drying by adopting hot air of a hot-blast stove until the water content of the biomass particles is 10-13%;
(3) separating the dried biomass particles by a cyclone separator, and feeding the biomass particles into a storage bin;
(4) extruding biomass particles in the storage bin into biomass granular fuel by using a ring die forming machine;
(5) and (3) conveying the molded biomass granular fuel to a storage frame while air cooling by adopting an air cooling conveying belt, and thus finishing the production of the biomass granular fuel.
2. The method for producing a biomass pellet fuel as claimed in claim 1, characterized in that: when the hot air is adopted for drying, the temperature of the hot air is 300-400 ℃, air cannot circulate in the drying roller, and the combustion of the biomass particles during drying is avoided.
3. The method for producing a biomass pellet fuel as claimed in claim 1, characterized in that: the equipment adopted in the production process of the biomass pellet fuel comprises a pulverizer (1), a screening machine (3), a hot blast stove (7), a drying roller (8), a cyclone separator (11), a ring die forming machine (13) and a storage frame (15), wherein a discharge port of the pulverizer (1) is connected with a feed port of the screening machine (3) through a conveying belt (2), a discharge port of the screening machine (3) is connected with a drying roller inlet pipe (18) of the drying roller (8) through a feeding joint (5), and a tail gas pipe (6) of the hot blast stove (7) is also connected with the feeding joint (5); an outlet pipe (26) of a drying cylinder of the drying roller (8) is connected with a cyclone separator (11) through a discharge port (9) and a draught fan (10), a discharge port of the cyclone separator (11) is connected with a storage bin (12), the storage bin (12) is connected with an inlet of a ring die forming machine (13), and an outlet of the ring die forming machine (13) is connected with a storage frame (15) through an air-cooled conveying belt (14).
4. The method for producing a biomass pellet fuel as claimed in claim 3, characterized in that: the storage frame (15) is a reticular breathable storage frame (15).
5. The method for producing a biomass pellet fuel as claimed in claim 1 or 3, characterized in that: the drying cylinder (12) comprises a cylinder body (19), a supporting wheel frame (20) and supporting wheels (21), a transmission gear ring (24) and idler wheels (22) are arranged on the outer surface of the cylinder body (19), the idler wheels (22) are installed on the supporting wheels (21), the supporting wheels (21) are installed on the supporting wheel frame (20), the transmission gear ring (24) is meshed with gears on a rotating shaft of a motor (23), and a drying cylinder inlet pipe (18) and a drying cylinder outlet pipe (26) are respectively arranged at two ends of the cylinder body (19).
6. The method for producing a biomass pellet fuel as claimed in claim 5, characterized in that: the inner wall of the drying cylinder (12) is provided with a spiral stirring blade (25), and when the drying cylinder (12) rotates, the spiral stirring blade (25) conveys materials to an outlet pipe (26) of the drying cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911094458.7A CN110699148A (en) | 2019-11-11 | 2019-11-11 | Production method and equipment of biomass granular fuel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911094458.7A CN110699148A (en) | 2019-11-11 | 2019-11-11 | Production method and equipment of biomass granular fuel |
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| Publication Number | Publication Date |
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| CN110699148A true CN110699148A (en) | 2020-01-17 |
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| CN201911094458.7A Pending CN110699148A (en) | 2019-11-11 | 2019-11-11 | Production method and equipment of biomass granular fuel |
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| CN (1) | CN110699148A (en) |
Cited By (3)
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| CN112239688A (en) * | 2020-09-27 | 2021-01-19 | 浙江豪宇生态科技有限公司 | Process for preparing biochar by utilizing green plant wastes and production system thereof |
| CN112999973A (en) * | 2021-03-31 | 2021-06-22 | 哈尔滨理工大学 | Biomass baking coupling granulation device based on solar heat supply |
| CN114317950A (en) * | 2021-12-30 | 2022-04-12 | 河北鑫达钢铁集团有限公司 | Environment-friendly sintering system and sintering method |
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| CN102796586A (en) * | 2012-08-15 | 2012-11-28 | 山东鸿亿生物燃料有限公司 | Biomass particle fuel and preparation method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112239688A (en) * | 2020-09-27 | 2021-01-19 | 浙江豪宇生态科技有限公司 | Process for preparing biochar by utilizing green plant wastes and production system thereof |
| CN112999973A (en) * | 2021-03-31 | 2021-06-22 | 哈尔滨理工大学 | Biomass baking coupling granulation device based on solar heat supply |
| CN114317950A (en) * | 2021-12-30 | 2022-04-12 | 河北鑫达钢铁集团有限公司 | Environment-friendly sintering system and sintering method |
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