Straw powder sieving apparatus and powder sieving process thereof

Abstract

The invention discloses a straw powder sieving apparatus and a powder sieving process thereof and belongs to the technical field of straw smashing. The straw powder sieving apparatus comprises a casing and a powder sieving chamber mounted on the casing. A feeding hopper is fixedly mounted at the top of the powder sieving chamber. A feeding pipe is arranged in the feeding hopper. A protection hoodis arranged outside the feeding pipe in a sleeving mode. A plurality of fans are arranged between the protection hood and the feeding pipe. A first motor is fixedly mounted on the outer wall of the powder sieving chamber. The output end of the first motor is fixedly connected with a first screen plate. A second motor is arranged above the first motor. The output end of the second motor is fixedlyconnected with a second screen plate. According to the straw powder sieving apparatus and the powder sieving process thereof, the fans are arranged to blow dust generated in the sieving process of straw powder into a discharging hopper, so that the dust raising rate in the casing is reduced, and meanwhile the waste of powder is reduced; and the first motor and the second motor are arranged to rotationally overturn the second screen plate and the first screen plate, so that the straw powder on the second screen plate and the first screen plate fall down, and accordingly residual powder is reduced.

Description

technical field [0001] The invention relates to a powder sifting equipment and a powder sifting process thereof, in particular to a straw powder sifting equipment and a powder sifting process thereof, and belongs to the technical field of straw crushing. Background technique [0002] After the straw is crushed, a straw powder mixture with uneven thickness can be obtained, but the traditional straw mixture cannot be directly used as a feed or a raw material for wood-plastic materials, so it needs to be sieved. [0003] The existing powder sifting equipment has the following deficiencies: (1) the existing powder sifting device produces a large amount of dust during the powder sieving process, pollutes the environment, and also causes waste of powder; After powdering, some straw powder will remain in the powder sifting equipment, and long-term accumulation will damage the powder sieving equipment and affect the service life. Contents of the invention [0004] The main purpos...

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Problems solved by technology

[0002] After the straw is crushed, a straw powder mixture with uneven thickness can be obtained, but the traditional straw mixture cannot be directly used as feed or raw material for wood-plastic materials, so it needs to be sieved

[0003] The existing powder sifting equipment has the following deficiencies: (1) the existing powder sifting device produces a large amount of dust during the powder sieving process, pollutes the environment, and also causes waste of powder; After powdering, some straw powder will remain in the powder sifting equipment, and long-term accumulation will damage the powder sieving equipment and affect the service life

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