Drum screen with foldable rolling wheels and two kinds of screen meshes

Abstract

The invention relates to a chemical fertilizer production device, in particular to a drum screen with foldable rolling wheels and two kinds of screen meshes. The drum screen comprises a support, a motor, a coupler, a screen shaft, a screen body, supporting frames 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, and the foldable rolling wheels are arranged at the four corners of the support and movably connected with the support. According to the drum screen with the foldable rolling wheels and the two kinds of screen meshes, the situation that the mesh openings are blocked is prevented; the drum screen can move conveniently as needed through the foldable rolling wheels on the bottom of the drum screen, so that the work quality and efficiency and the use flexibility of the drum screen are improved.

Description

technical field [0001] The invention relates to a fertilizer production equipment, in particular to a trommel screen with two kinds of screens with 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. The 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, due to the large volume and high quality of most dr...

AI Technical Summary

Problems solved by technology

[0002] In the production of compound fertilizers, sorting fertilizer granules is an essential step before packaging the finished product. The uniformity of fertilizer granules is a measure of the quality of fertilizers. Because the compound fertilizer particles have a certain viscosity, in the prior art, 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 screen from clogging. It affects the work of the rear screen, but it often screens out the particles with a qualified size. It is necessary to re-screen the particles screened out by the front screen, which reduces the production efficiency. In addition, because most drum screens are large in size and low in quality Large, when it is necessary to move the trommel screen, it often requires the joint efforts of multiple people or with the help of additional mechanical equipment to move it. There are also mobile rollers installed 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. The phenomenon affects the working quality and efficiency of the trommel screen. Therefore, in order to improve the working quality, efficiency and production efficiency of the trommel screen, it is of great significance to provide a trommel screen with two kinds of foldable roller screens.

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