A screening device for organic fertilizer granulation

The cleaning mechanism, which combines a drum screen with a nylon brush and features an inclined design and polyurethane material, solves the problem of poor screening effect of traditional screening equipment for high-humidity and highly viscous organic fertilizer, achieving efficient screening and cleaning of the screen holes.

CN224443755UActive Publication Date: 2026-07-03FUJIAN YIGUO ECOLOGICAL TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
FUJIAN YIGUO ECOLOGICAL TECHNOLOGY CO LTD
Filing Date
2025-08-05
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Traditional screening equipment is ineffective at screening organic fertilizers with high humidity and strong viscosity. The screen holes are prone to clogging, the screening accuracy is low, and the scraper directly contacts the screen surface, which can easily damage the screen and result in high maintenance costs.

Method used

The cleaning mechanism combines a drum screen with nylon brushes. The drum screen features an inclined design and polyurethane material, along with spiral protrusions and stainless steel rings. It peels off adhering materials through flexible scraping and rubbing motions. The nylon brushes have adjustable pressure and elastic deformation to prevent damage to the screen surface.

Benefits of technology

It improves screening efficiency and screen hole cleaning effect, avoids screen damage, reduces maintenance costs, and solves the problem of screen hole clogging.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224443755U_ABST
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Abstract

This utility model belongs to the technical field of screening equipment, specifically a screening device for organic fertilizer granulation. It includes a screening frame with multiple guide channels installed on its surface. An inclined drum screen is mounted on the upper surface of the screening frame. A cleaning mechanism, comprising a nylon brush, is installed inside the drum screen. The nylon material of the brush slides in contact with the inner surface of the drum screen, flexibly scraping and peeling off adhering organic fertilizer. This screening device for organic fertilizer granulation avoids damaging the surface structure of the organic fertilizer granulation process through the flexible sliding contact between the nylon brush and the inner surface of the drum screen. The spiral protrusion structure achieves both scraping and rubbing actions, peeling off adhering organic fertilizer without damaging the screen. Furthermore, the retractable nylon brush structure adjusts the pressure between the brush and the inner surface of the drum screen, thereby improving the cleaning effect of the screen openings.
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