Two-stage rotary screen with dust collector and foldable roller

Abstract

The invention relates to a chemical fertilizer production device, and in particular relates to a two-stage rotary screen with a dust collector and a foldable roller. The two-stage rotary screen with the dust collector and the foldable roller comprises a bracket, a motor, a coupling, a screen shaft, a screen body, a supporting frame, the dust collector and the foldable rollers; the motor is arranged on the bracket; two ends of the screen shaft are connected with the bracket through a bearing; the screen body is connected with the screen shaft through the supporting frame; the motor is connected with the screen shaft through the coupling; the screen body comprises a first screen part and a second screen part; the meshes of the first screen part are smaller than those of the second screen part; the dust collector is arranged in the same direction as a waste opening; the foldable rollers are arranged at four corners of the bracket and are movably connected with the bracket. The two-stage rotary screen with the dust collector and the foldable roller has the advantages that the circumstance that the meshes are blocked can be prevented, operators can be protected well, and thus the safety and flexibility in use of the rotary screen can be improved.

Description

technical field [0001] The invention relates to a fertilizer production equipment, in particular to a two-stage drum screen with a dust suction device 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, it is well known that the main components of compo...

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. Affects the work of the rear screen, but often sieves out the particles with a qualified size. It is necessary to re-screen the particles screened out of the front screen, which reduces the production efficiency. In addition, it is well known that the main components of compound fertilizers are nitrogen and phosphorus. , Potassium and other chemical components, due to the high rotational speed of the drum screen, it is inevitable to produce a large amount of dust, and most of the dust contains chemical components. If things go on like this, working in this environment will inevitably affect the health of the operators. In addition, most trommel screens have a large mass. When it is necessary to move the trommel screen, it often requires the joint efforts of multiple people or the use of additional mechanical equipment to move it. There are also moving rollers set at the four corners of the trommel screen bracket. However, because the rotating speed of the trommel screen is high, it is easy to produce shaking phenomenon, which affects the working quality and efficiency of the trommel screen. Therefore, it is of great significance to provide a two-stage trommel screen with a dust suction device and foldable rollers.

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