Roller arrangement adaptable to crushing of large size mineral material

By installing a feeding auxiliary crushing device and a sprocket differential device above the driven roller of the double roll crusher, the problems of large-sized mineral blockage and wet material being pressed into a "cake" shape by the roller are solved, achieving efficient crushing and uniform particle size.

CN120205257BActive Publication Date: 2026-07-21JIANGXI GUANGMING INTELLIGENT TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
JIANGXI GUANGMING INTELLIGENT TECH CO LTD
Filing Date
2023-12-27
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

When crushing medium and fine-grained minerals, existing double roll crushers often encounter large-grained minerals that are easily blocked in the "V"-shaped feed inlet due to insufficient friction, resulting in low crushing efficiency and the wet material easily forming a "cake" shape, which is difficult to meet national standards.

Method used

An auxiliary crushing device is installed above the driven roller, including an extrusion plate and an auxiliary crushing power mechanism. The reciprocating motion of the extrusion plate enhances the friction between the ore and the roller. With the help of a sprocket differential speed device and a main and driven roller gap adjustment device, the effective crushing of large-sized ore is ensured.

Benefits of technology

It effectively avoids clogging by large-particle minerals, improves crushing efficiency, ensures that the crushed particle size meets national standards, and solves the problem of wet material being rolled into a "cake" shape.

✦ Generated by Eureka AI based on patent content.

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    Figure CN120205257B_ABST
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Abstract

The application discloses a kind of big particle size ore crushing roll device, belong to ore sample preparation equipment technical field.It includes a group of parallelly erected in the left and right two side plates of frame driven roller and driven roller, the driven roller and driven roller form a cross section between the "V" shape material inlet space;Its characterized in that: a material inlet auxiliary crushing device is arranged above the driven roller, the material inlet auxiliary crushing device includes a extrusion plate that can be on the outside of driven roller towards the lower part of the material inlet space and reverse reciprocating motion, and the auxiliary crushing power mechanism of driving the extrusion plate reciprocating motion.The application solves the technical problem that large particle size material cannot enter the material inlet space, easy to block, thereby causing the technical problem of low crushing efficiency by material inlet auxiliary crushing device.
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