Straw pulverizer

Abstract

The invention belongs to the technical field of electromechanical integration and particularly relates to a straw pulverizer. The axial vibration screen type straw pulverizer is characterized in that the straw pulverizer comprises a discharge outlet, a mini-type vibration motor, a bearing base, a vibration screen, vibration screen brackets, an air inlet, vibration springs, end plates, hammer slices, pin shafts, a hammer carrier plate, a spindle, a coupler, a motor, a feed inlet, a toothed plate, screen meshes and a pulverizing chamber. The discharge outlet is formed in the position, on the lower left portion, of a pulverizer body. The mini-type vibration motor is arranged on one side of the vibration screen. The bearing base is arranged above the mini-type vibration motor. The vibration screen brackets are arranged on the two sides of the vibration screen. The air inlet is formed in the left side of the vibration. The end plates are sleeved with the vibration springs correspondingly. The hammer carrier plate is connected with the pin shafts. The straw pulverizer is simple in structure and wide in application range and can be used for pulverizing straw.

Description

technical field [0001] The invention belongs to the technical field of mechatronics, and in particular relates to a straw pulverizer. Background technique [0002] Large-scale pulverization is an important link in the development, utilization and industrialization of biomass energy. But so far, it is difficult to purchase machinery suitable for large-scale crushing production of biomass in the market. Generally, it is replaced by straw returning pulverizers, forestry wood crushing machinery, and pasture straw crushing and kneading equipment in the feed industry. These equipments have large crushing particle size. (Generally greater than 10mm), fast tool wear (need to be replaced after 8-10 hours of continuous operation), high energy consumption and low kWh output, especially the inability to meet the requirements of fine crushing particle size and high productivity. [0003] With the development of biomass energy industrialization, some scholars have researched and develope...

AI Technical Summary

Problems solved by technology

But so far, it is difficult to purchase machinery suitable for large-scale crushing production of biomass in the market. Generally, it is replaced by straw returning pulverizers, forestry wood crushing machinery, and pasture straw crushing and kneading equipment in the feed industry. These equipments have large crushing particle size. (generally greater than 10mm), fast tool wear (need to be replaced after 8 to 10 hours of continuous operation), high energy consumption and low kWh output, especially the inability to meet the requirements of fine crushing particle size and high productivity

[0003] With the development of biomass energy industrialization, some scholars have researched and developed biomass crushing equipment, but the designed crushing particle size is mostly 5-15mm, and the productivity of the equipment is low, which cannot meet the needs of large-scale crushing production.

When the crushing particle size is required to be less than 20 mesh, the screen of the pulverizer is easily blocked, so that the materials with qualified particle size cannot pass through the screen in time, resulting in over-crushing

Due to the decline in material screening capacity, it will lead to a sharp decrease in productivity, a substantial increase in power consumption, and it is easy to cause motor overload, jamming, etc., resulting in potential safety hazards

Some designs try to use a vibrating screen to improve the screening capacity, but the maximum amplitude direction of the designed pulverizer screen is perpendicular to the direction of the rotor axis, the amplitude needs to be strictly controlled, and the crushing tool is easy to break the screen, resulting in unqualified product particle size , material leakage and safety accidents, thus affecting its popularization and application

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