Two-stage drum screen with protecting cover and foldable rolling wheels

Abstract

The invention relates to a chemical fertilizer production device, in particular to a two-stage drum screen with a protecting cover and foldable rolling wheels. The two-stage drum screen comprises a support, a motor, a coupler, a screen shaft, a screen body, supporting frames, the protecting cover and the foldable rolling wheels, wherein the motor is arranged on the support, the two ends of the screen shaft are connected with the support through bearings, the screen body is connected with the screen shaft through the supporting frames, the motor is connected with the screen shaft through the coupler, the screen body comprises a first screen mesh part and a second screen mesh part with the mesh openings larger than the mesh openings of the first screen mesh part, one side of the protecting cover is fixedly connected with the support, the other side of the protecting cover is detachably connected with the support, and the foldable rolling wheels are arranged at the four corners of the support and movably connected with the support. According to the two-stage drum screen with the protecting cover and the foldable rolling wheels, the work quality and efficiency and the use flexibility and safety of the drum screen are improved.

Description

technical field [0001] The invention relates to a fertilizer production equipment, in particular to a two-stage drum screen with a protective cover and foldable rollers. Background technique [0002] In the production of compound fertilizers, sorting fertilizer granules is an essential step before packaging finished products. The uniformity of fertilizer granules is an important indicator to measure the quality of fertilizers. Due to the certain viscosity of compound fertilizer granules, existing In the technology, in order to prevent the screen from clogging, the front screen mesh is larger than the rear screen mesh, and the larger particles are preferentially screened out to prevent the blockage of the screen from affecting the work of the rear screen. Particles are screened out together, and the particles screened out by the front screen need to be screened again, which reduces the production efficiency; in addition, most of the trommel screens in the prior art work in ...

AI Technical Summary

Problems solved by technology

[0002] In the production of compound fertilizers, sorting fertilizer granules is an essential step before packaging finished products. The uniformity of fertilizer granules is an important indicator to measure the quality of fertilizers. Due to the certain viscosity of compound fertilizer granules, existing In the technology, in order to prevent the screen from clogging, the front screen mesh is larger than the rear screen mesh, and the larger particles are preferentially screened out to prevent the blockage of the screen from affecting the work of the rear screen. Particles are screened out together, and the particles screened out by the front screen need to be screened again, which reduces the production efficiency; in addition, most of the trommel screens in the prior art work in an open environment. As a result, the materials in the sieve are thrown out from the screen with the rotation of the sieve. When the thrown out materials accumulate in small quantities, it is necessary to set up relevant personnel to process the part of the materials, which increases the production cost; Large, when it is necessary to move the trommel screen, it often requires the joint efforts of multiple people or additional mechanical equipment to move it. In the prior art, moving rollers are also used at the four corners of the trommel screen bracket. However, due to the high speed of the trommel screen when it is working, It is easy to shake and affect the working quality and efficiency of the trommel screen, so it is of great significance to provide a two-stage trommel screen with a protective cover and foldable rollers

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