Granulation equipment for fertilizer production

Through the coordinated action of the limiting component and the driving component, the vortex blades only start to rotate when the material density reaches the preset value, which solves the problem of premature material extrusion in the spiral extrusion granulation equipment and ensures granule quality and production efficiency.

CN122298274APending Publication Date: 2026-06-30SHI KEFENG (JIANGXI) ECOLOGICAL AGRICULTURE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHI KEFENG (JIANGXI) ECOLOGICAL AGRICULTURE CO LTD
Filing Date
2026-05-09
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

In existing screw extrusion granulation equipment, the material is prematurely extruded from the granulation holes before reaching the required density, resulting in inferior granules with internal honeycomb-like voids, rough surfaces, and low strength, which affects product quality.

Method used

By employing the synergistic action of limit components and drive components, the vortex blades only begin to rotate when the material density reaches a preset value, ensuring that the material is fully compacted before being extruded and granulated. Combined with the agitation and degassing of the strip blades, continuous automated production is achieved.

Benefits of technology

It effectively avoids material looseness and honeycomb defects, ensures product quality, improves production efficiency, and realizes continuous automated production.

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    Figure CN122298274A_ABST
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Abstract

This invention belongs to the field of granulator technology and relates to granulation equipment for fertilizer production. The invention includes a barrel with a feed inlet. A conveying assembly is installed inside the barrel to transport material to the front end. A granulation plate is fixedly installed at the front end of the barrel, and the granulation plate has multiple granulation holes. A strip blade is rotatably mounted on the inward side of the granulation plate, and a vortex blade is rotatably mounted on the outward side of the granulation plate. The multiple granulation holes are distributed in a spiral shape matching the vortex blade. An assembly for limiting the movement of the vortex blade is provided on the barrel. A drive assembly for driving the strip blade and the vortex blade is provided on the granulation plate. Granulation is automatically triggered by the material's own density, ensuring that only fully compacted and degassed material is extruded and granulated, fundamentally avoiding defects such as loose or honeycomb-like particles caused by premature discharge, thus guaranteeing product quality.
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