Screening device for fertilizer production and screening method thereof

Abstract

The invention relates to the technical field of fertilizer production equipment, in particular to a screening device for fertilizer production and a screening method thereof. The screening device forfertilizer production comprises a screening bin, a screen cylinder is connected into the screening bin, a driving structure for driving the screen cylinder to rotate is connected to the bottom of thescreen cylinder, a drying structure is connected to the top of the screening bin, the drying structure comprises a drying bin connected to the top of the screening bin through a conveying pipe, an electromagnetic valve is connected to the conveying pipe, a heating cavity is formed by the inner wall and the outer wall of the bin wall of the drying bin and connected with a hot air pump, a pluralityof hot air ports are formed in the heating cavity, an exhaust port is formed in the drying bin, a stirring structure is connected into the drying bin, the bottoms of the screen cylinder and the screening bin are separately connected with discharge pipes, and the discharge pipes are connected with electric control valves, and the screening method of the screening device is characterized in that after fertilizer is dried, and then screening treatment is carried out. The problem that an existing screening device is extremely low in screening efficiency is solved, the fertilizer is prevented frombeing bonded in the screening process through the screening device, and the screening efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of fertilizer production equipment and is used for improving the screening efficiency of fertilizers, in particular to a screening device for producing fertilizers and a screening method thereof. Background technique [0002] Fertilizers are usually granular and need to be sieved after the granulation is completed to improve the uniformity of the fertilizer. Since fertilizers with different particle sizes have different dissolution times during use, after sieving, Packing the larger particles and the smaller particles together can make the fertilizer more convenient for subsequent use, and it is convenient for the staff to accurately grasp the dissolution time of the fertilizer, so as to avoid the incomplete dissolution of the fertilizer affecting the fertilizer efficiency, or the dissolution time is too long affect work efficiency. [0003] Existing fertilizer screening devices usually include screens conn...

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Problems solved by technology

[0005] Aiming at the problems of poor screening effect and extremely low screening efficiency in the fertilizer screening device in the prior art, this application proposes a screening device for producing fertilizer and a screening method thereof. The top of the sub-bin is connected to the drying bin, which can not only achieve the effect of further drying the fertilizer, but also avoid the bonding of the fertilizer during the screening process, resulting in a poor screening effect. The net is improved into a screening cylinder, and the screening of fertilizers is realized through the rotating vibration of the screening cylinder, which improves the efficiency of screening

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