Pulverization system and method for biomass fuel production

Abstract

The present application discloses a pulverization system and method for biomass fuel production. The system includes: a conveyor belt, a first lifting mechanism, a storage bin, a pulverizer, a first screw propeller, a second screw propeller, a second Material lifting mechanism and negative pressure dust removal system, the first material lifting mechanism includes: the first lifting frame, the first lifting hopper, the first lifting motor, the first lifting motor is installed on the top of the first lifting frame, and drives with the first lifting hopper connect. Through two sets of lifting mechanisms, the materials are sequentially lifted into the pulverizer and the raw material bin for pulverization and storage. The feed and discharge of the pulverizer are both propelled by the screw propeller, and the transfer of materials between the various devices is carried out through pipeline connections. , can avoid the formation of dust.

Description

technical field [0001] The application relates to a crushing system and method for biomass fuel production, which belongs to the field of biomass fuel crushing. Background technique [0002] Biomass fuel (also known as biomass pellet fuel) is a block-shaped environmentally friendly new energy fuel material produced by processing straw, straw, rice husk, peanut shell, corn cob, camellia husk, cottonseed husk, etc., as well as "three leftovers". . The diameter of biomass particles is generally 6-10 mm, and the ignition point is about 250 °C. Biomass fuel needs to be dried, and most of the existing drying equipment is drum drying. [0003] During the pulverization process, the granular material and the pulverizer repeatedly rub at high speed to generate heat. If the material cannot be evenly distributed in the pulverizer, the local temperature of the material will be too high and spontaneous combustion will occur. Biomass fuels tend to produce a large amount of impurities, w...

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Problems solved by technology

Biomass fuel is prone to produce a large amount of impurities, which reduces the purity of the product, and it is difficult to remove such impurities while ensuring product quality

[0004] During the pulverization process, the overall temperature of the material is high, which makes the material easy to form slagging on the inner wall of the pulverizer. After a long period of pulverization, the thickness of the slagging is high, which will reduce the contact probability between the material and the pulverizer head, and reduce the pulverization efficiency.

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