WO2022252388A1 - Broyeur de biocombustible micronique à lit fluidisé à couche intermédiaire horizontale et son procédé d'utilisation - Google Patents

Broyeur de biocombustible micronique à lit fluidisé à couche intermédiaire horizontale et son procédé d'utilisation Download PDF

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Publication number
WO2022252388A1
WO2022252388A1 PCT/CN2021/110695 CN2021110695W WO2022252388A1 WO 2022252388 A1 WO2022252388 A1 WO 2022252388A1 CN 2021110695 W CN2021110695 W CN 2021110695W WO 2022252388 A1 WO2022252388 A1 WO 2022252388A1
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WO
WIPO (PCT)
Prior art keywords
crushing
horizontal
biomass
fuel
crushed
Prior art date
Application number
PCT/CN2021/110695
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English (en)
Chinese (zh)
Inventor
王训
肖波
许婷婷
吴琼
Original Assignee
华中科技大学
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Filing date
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Application filed by 华中科技大学 filed Critical 华中科技大学
Publication of WO2022252388A1 publication Critical patent/WO2022252388A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B02C18/14—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within horizontal containers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B02C18/16—Details
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B02C18/16—Details
    • B02C18/18—Knives; Mountings thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B02C18/16—Details
    • B02C18/22—Feed or discharge means
    • B02C18/2216—Discharge means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B02C18/16—Details
    • B02C18/22—Feed or discharge means
    • B02C18/2225—Feed means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
    • B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
    • B02C23/16—Separating or sorting of material, associated with crushing or disintegrating with separator defining termination of crushing or disintegrating zone, e.g. screen denying egress of oversize material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
    • B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
    • B02C23/16—Separating or sorting of material, associated with crushing or disintegrating with separator defining termination of crushing or disintegrating zone, e.g. screen denying egress of oversize material
    • B02C2023/165—Screen denying egress of oversize 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
    • 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

Definitions

  • the invention belongs to the technical field of biomass fuel, and in particular relates to a horizontal interlayer fluidized bed biomass micron fuel crusher and a use method thereof.
  • biomass micron fuel As a kind of industrial fuel, biomass micron fuel is used in a huge amount and is a one-time consumption. Therefore, it is required to be mass-produced and the production cost is low.
  • Professor Xiao Bo of Huazhong University of Science and Technology and his team have efficiently produced biomass with a particle size of less than 250 Micron's "micron fuel” is called Xiao fuel, Xiao fuel can achieve high temperature combustion above 1400 °C, and has a broad market prospect. This requires a crusher that can meet the particle size requirements of biomass micron fuel and has high crushing efficiency.
  • Most of the crushed products of the existing crushers have a particle size of more than 10mm, which belongs to the scope of coarse crushing, such as: chopping and stubble returning machines for field operations, green feed crushers, etc.
  • the general hammer crusher cannot meet the requirements for the particle size of the crushed product, and the structure is more complicated.
  • the traditional biomass crushing device has a single function, and the production efficiency of biomass crushing is low.
  • CN205042568U discloses a biomass fuel crusher, comprising a crusher main body, a feed roller and a cutter roll are arranged in the crusher main body, the feed end of the crusher main body is connected with the output end of the feeding belt conveyor, and the discharge end of the crusher main body The end is connected with the input end of the discharge belt conveyor; a forced feeding roller is set above the feeding roller; the blades on the knife roller are arranged in a dislocation.
  • the blades on the cutter roll are dislocated in sections, which reduces the damage of hard impurities to the blades in the process of processing biomass fuel, but the crushing effect is difficult to meet the requirements for micron particle size, and there is still room for improvement.
  • CN104492567A discloses a biomass fuel crusher, including a support base, a frame is arranged on the support base, a feeding bin is arranged at the front of the frame, and a horizontally arranged crawler-type feeding conveyor is arranged in the feeding bin; the crawler-type feeding conveyor There is a forced feeding roller on the top of the rear end of the machine, and a crushing chamber is arranged on the frame at the rear of the forced feeding roller, and a crushing roller is arranged in the crushing chamber, and a crushing cutter head is arranged on the roller surface of the crushing roller.
  • the crushing and separating screen is coaxially set on the outer periphery.
  • the crushing and separating screen is equipped with a crushing inlet that cooperates with the forced feeding roller at the front; There is a discharge conveyor below the discharge port.
  • the technical scheme has a reasonable cutter setting, which improves the versatility of the crusher, but there is still room for improvement in the crushing effect.
  • the prior art still lacks a biomass fuel shredder whose particle size of the crushed product can reach the micron level.
  • the present invention provides a horizontal interlayer fluidized bed biomass micron fuel crusher, which boils the bottom material through the fluidized bed at the bottom of the horizontal crusher, and the The rotary throwing force enables the material to interact with the crushing tool in an all-round way at an angle of 360°.
  • the horizontal crushing cylinder is divided into several small crushing chambers by using perforated plates, so that elastic biomass materials can be efficiently grinded under compression conditions. Crushing can greatly improve the efficiency of biomass micro-fuel crushing, thereby solving the technical problem that the particle size of crushed products is difficult to reach the micron level by express delivery.
  • a kind of horizontal interlayer fluidized bed biomass micron fuel breaker comprising a feed system, a horizontal interlayer crushing chamber and a discharge system; the feed system Along the movement direction of the biomass fuel to be crushed, there are sequentially provided a feed inlet, a feed distribution auger and a distribution inlet channel;
  • the horizontal compartment crushing chamber is provided with a horizontal crushing cylinder, a machine seat located below the horizontal crushing cylinder and fixing the horizontal crushing cylinder, and the horizontal crushing cylinder includes an upper body, a lower body, and a detachable connection.
  • the body and the rotating shaft, the cloth inlet channel communicates with the upper body, the upper body and the lower body are symmetrically distributed along the plane where the rotating shaft is located, the fixed seat of the rotating shaft is located in the horizontal crushing At the midpoint in the length direction of the cylinder, the rotating shaft is fixedly connected with a cutter.
  • the interior of the horizontal crushing cylinder is divided into several crushing chambers by a cylindrical perforated plate.
  • the pipe wall of the upper body is provided with crushing material In the inner channel, the bottom of the lower body is provided with a fluidized bed, and the fluidized bed can blow up the biomass fuel falling into the bottom of the horizontal crushing cylinder;
  • the discharge system includes a frame structure that covers the internal channel of the crushed material and an induced draft fan that communicates with the frame structure through the discharge port, and the frame structure can communicate with the internal channel of the crushed material and the discharge port.
  • the mouth forms an inner channel cavity, and the broken biomass micron fuel driven by the induced draft fan is discharged along the inner channel of the broken material, the inner channel cavity and the discharge port.
  • the fluidized bed includes an air nozzle, an air collection chamber and a blower, the air nozzle runs through the lower body, the air nozzle is fixedly connected with the air collection chamber, and the air collection chamber is connected to the air inlet through the air inlet. Blower connected.
  • the angle between the air flow incident direction of the air nozzle and the normal line of the air nozzle is 100-150°, preferably 105-130°.
  • the inner channel cavity is provided with a fine powder screen.
  • the hole diameter of the porous plate of the crushing chamber is 5-50 mm, preferably 10-20 mm; the cross-sectional diameter of the crushing chamber is 15-80 mm, preferably 25-50 mm.
  • the pore diameter of the inner channel of the crushed material is 0.5-3.0 mm, preferably 0.8-2 mm.
  • the feed distribution auger is a spiral stirring feed.
  • the number of the knives is 2-20, preferably 4-12.
  • a method for using a crusher comprising the following steps:
  • the crushed biomass micron fuel is driven by the induced draft fan and discharged along the inner passage of the crushed material, the cavity of the inner passage and the discharge port.
  • the present invention combines tool treatment and crushing cavity deep treatment, and the fluidized bed boils the bottom material, and the rotating throwing force of the rotary knife enables the material to interact with the crushing tool in all directions at an angle of 360°, Carry out preliminary crushing, and then divide the horizontal crushing cylinder into several small crushing chambers with perforated plates, and the primary crushed fuel enters the crushing chamber, so that elastic biomass materials can be efficiently ground and crushed under compression conditions, with high crushing efficiency.
  • the crushing effect is good, and finally the micron fuel with a particle size of less than 250 microns can be obtained, which meets the particle size requirement of biomass micron fuel;
  • the invention has reasonable design, simple and compact structure, convenient installation and replacement of cutter shaft blades, convenient maintenance, and improves the working efficiency, crushing quality and working life of the crusher, reduces power consumption, use cost and operating cost, and has broad advantages. market application prospects.
  • Fig. 1 is a device structure diagram of the present invention
  • feed inlet 1 feed material auger 2, cloth inlet channel 3, material outlet 4, micropowder screen 5, crushed material inner channel 6, inner channel cavity 7, upper body 8, lower body 9, inlet Air port 10, fluidized bed 11, machine base 12, cutter 13, rotating shaft 14, crushing chamber 15.
  • It includes a feed system, a horizontal compartment crushing chamber and a discharge system; the feed system is sequentially provided with a feed inlet 1, a feed distribution auger 2 and a distribution inlet channel 3 along the movement direction of the biomass fuel to be crushed;
  • the horizontal compartment crushing chamber is provided with a horizontal crushing cylinder, a base 12 located below the horizontal crushing cylinder and fixing the horizontal crushing cylinder, and the horizontal crushing cylinder includes a detachably connected upper body 8 , the lower body 9 and the rotating shaft 14, the cloth inlet channel 3 communicates with the upper body 8, the upper body 8 and the lower body 9 are distributed symmetrically along the plane where the rotating shaft 14 is located, and the rotating shaft
  • the fixed seat of 14 is located at the midpoint of the length direction of the horizontal crushing cylinder, the rotating shaft 14 is fixedly connected with the cutter 13, and the interior of the horizontal crushing cylinder is divided into several crushing chambers by a cylindrical perforated plate 15.
  • the tube wall of the upper body 8 is provided with an internal channel 6 for crushing materials, and the bottom of the lower body 9 is provided with a fluidized bed 11, which can displace the biomass fuel falling into the bottom of the horizontal crushing cylinder. blow up;
  • the discharge system includes a frame structure that covers the internal channel 6 of the crushed material and an induced draft fan that communicates with the frame structure through the discharge port 4, and the frame structure can communicate with the internal channel 6 of the crushed material and the
  • the discharge port 4 forms an inner channel cavity 7, and the crushed biomass micron fuel driven by the induced draft fan is discharged along the crushed material inner channel 6, the inner channel cavity 7 and the discharge port 4.
  • the ebullating bed 11 includes an air nozzle, an air collection chamber and a blower, the air nozzle runs through the lower body 9, the air nozzle is fixedly connected with the air collection chamber, and the air collection chamber It communicates with the blower through the air inlet 10.
  • the angle between the air flow incident direction of the air nozzle and the normal line of the air nozzle is 100-150°, preferably 105-130°.
  • the inner channel cavity 7 is provided with a fine powder screen 5 .
  • the diameter of the perforated plate of the crushing chamber 15 is 5-50 mm, preferably 10-20 mm; the cross-sectional diameter of the crushing chamber 15 is 15-80 mm, preferably 25-50 mm.
  • the diameter of the inner passage 6 of the crushed material is 0.5-3.0 mm, preferably 0.8-2 mm.
  • the feeding and distributing auger 2 is a screw agitating feeding.
  • the number of the cutters 13 is 2-20, preferably 4-12.
  • Biomass micron fuel enters the inside of the horizontal interlayer crushing chamber through feed inlet 1, feed cloth auger 2 and cloth inlet channel 3 successively;
  • the biomass micron fuel enters the crushing chamber 15 for further grinding and crushing under compression conditions;
  • the crushed biomass micron fuel is driven by the induced draft fan and discharged along the inner passage 6 of the crushed material, the inner passage cavity 7 and the discharge port 4 .

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Solid Fuels And Fuel-Associated Substances (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

La présente invention concerne un broyeur de biocombustible micronique à lit fluidisé à couche intermédiaire horizontale et son procédé d'utilisation, le broyeur de biocombustible micronique à lit fluidisé à couche intermédiaire horizontale comprenant un système d'alimentation, une chambre de broyage à couche intermédiaire horizontale et un système de décharge. Le système d'alimentation comporte de manière séquentielle un orifice d'alimentation (1), une tarière d'alimentation et de distribution (2), et un canal d'entrée de distribution (3) dans la direction de déplacement du biocombustible à broyer. La chambre de broyage à couche intermédiaire horizontale comporte un cylindre de broyage horizontal et une base (12) qui est située au-dessous du cylindre de broyage horizontal et utilisée pour fixer le cylindre de broyage horizontal. Le cylindre de broyage horizontal comprend un corps de machine supérieur (8), un corps de machine inférieur (9) et un arbre rotatif (14) qui sont reliés de façon détachable.
PCT/CN2021/110695 2021-05-31 2021-08-05 Broyeur de biocombustible micronique à lit fluidisé à couche intermédiaire horizontale et son procédé d'utilisation WO2022252388A1 (fr)

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CN202110601991.9 2021-05-31
CN202110601991.9A CN113333122B (zh) 2021-05-31 2021-05-31 一种卧式隔层沸腾床生物质微米燃料破碎机及使用方法

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CN110358604A (zh) * 2019-06-28 2019-10-22 华中科技大学 一种适用于生物质快速烘焙及粉碎的一体化设备
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CN210545566U (zh) * 2019-07-25 2020-05-19 郑州佳诺实业有限公司 一种沸腾式磨粉机

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CN104998732A (zh) * 2015-08-14 2015-10-28 无锡乐华自动化科技有限公司 一种中草药粉碎机
CN206276465U (zh) * 2016-10-26 2017-06-27 海盐县吉能生物质燃料有限公司 一种可移动式秸秆类生物质粉碎机
CH713628B1 (de) * 2017-03-27 2022-07-29 Lpt Ag Lantos Project Tech Vorrichtung zur Zerkleinerung und Trocknung von Abfallstoffen, Schlacken oder Gesteinen.
CN107377157A (zh) * 2017-07-20 2017-11-24 盐城康鼎机械有限公司 一种物料分离兼粉碎设备
CN208356965U (zh) * 2018-05-15 2019-01-11 上海博悦生物科技有限公司 一种医药中间体实验用气流粉碎机
CN210411035U (zh) * 2019-07-10 2020-04-28 南通汉森农业科技有限公司 一种适于生物质燃料的卧式粉碎装置
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Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1915527A (zh) * 2006-09-06 2007-02-21 丁大武 干燥、破碎、揭棉、分选一体化石棉选矿工艺
CN201033308Y (zh) * 2007-01-07 2008-03-12 刘伟奇 家用万能粉碎机
CN206604595U (zh) * 2017-02-20 2017-11-03 赣州市净达生物新能源有限公司 一种有助于提高生物质固体燃料密度的破碎机
JP2020055258A (ja) * 2018-10-04 2020-04-09 Ａｃａ株式会社 微粒子群含有体
CN110358604A (zh) * 2019-06-28 2019-10-22 华中科技大学 一种适用于生物质快速烘焙及粉碎的一体化设备
CN210545566U (zh) * 2019-07-25 2020-05-19 郑州佳诺实业有限公司 一种沸腾式磨粉机

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CN113333122A (zh) 2021-09-03

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