Large-capacity cylinder screening device for organic fertilizer production

Abstract

The invention relates to a large-capacity cylinder screening device for organic fertilizer production. The large-capacity cylinder screening device for organic fertilizer production comprises a rack, wherein an obliquely-rotating cylinder and a discharging hopper are arranged on the rack, the cylinder comprises a plurality of stages of screening cylinders which are sequentially connected, one side of the discharging hopper is connected with a first material distributing hopper, and the first material distributing hopper is provided with a first material distributing mechanism for distributing materials to a first material outlet port or a first material return port; and a second material distributing hopper, a conveyor and a lifting mechanism are arranged on the rack, the second material distributing hopper is provided with a second material distributing mechanism for distributing materials to a second material outlet port or a second material return port, the conveyor is arranged in a mode of corresponding to the bottom of the first material return port and the bottom of the second material return port, and a material return hopper is arranged at the top of the side of the lifting mechanism. The device is compact in structure, and during large-capacity cylinder screening treatment, circulating screening and step-by-step material outlet are carried out through screening of the stages of screening cylinders, control over step-by-step material return corresponding to the first material distributing hopper and tail end control over material return of the second material distributing hopper, so that reduction for the equipment space and cost is benefited, and the material grading screening efficiency of organic fertilizer production is increased.

Description

technical field [0001] The invention relates to a cylinder screening device for large-capacity organic fertilizer production, which belongs to the technical field of organic fertilizer production equipment. Background technique [0002] Organic fertilizers are mainly derived from plants and / or animals. After processing biomass, animal and plant waste, and plant residues, the toxic and harmful substances in them are eliminated, and they are rich in a large number of beneficial substances. They are mainly applied to the soil to provide plant nutrition. Functional carbon-containing materials can increase and renew soil organic matter, promote microbial reproduction, improve soil physical and chemical properties and biological activity, and are the main nutrients in green food production and are widely used. The processing of organic fertilizer raw materials or intermediates involves crushing or granulation followed by screening to control the fineness and uniform quality for ap...

AI Technical Summary

Problems solved by technology

[0003] The vibrating screening device in the prior art has a slow material advance speed, and the screening effect only depends on the surface of the target bed, and the processing efficiency and capacity are poor. The above problems can be improved by using a cylindrical screening machine rotating on the frame, but the existing round The cylinder screening machine generally adopts an inclined rotating structure. During the material advance process, the material on the screen surface is turned and rolled, and the material smaller than the screen hole falls to the bottom discharge shell through the outer ring of the cylinder, and is discharged from the end of the discharge shell. , materials with larger diameters fall and discharge from the end of the cylinder to play a screening role. However, due to the limited length of the cylinder, some materials cannot fully contact the screen surface during the forward process, and the sieve holes of the cylinder cannot be classified, resulting in the screening quality not reaching Requirements, relying only on increasing the number or length of the structure takes up a lot of space and high cost

Images