A coarse sand and fine sand grading and screening device

By designing a coarse and fine sand grading and screening device with adjustable screen plate inclination and feeding mechanism, the problems of inconvenient inclination adjustment and raw material mixing in the screening device are solved, achieving efficient grading and screening and precise control.

CN224358873UActive Publication Date: 2026-06-16SHAANXI YUNENG QINGQINGYUAN ENVIRONMENTAL PROTECTION MATERIALS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHAANXI YUNENG QINGQINGYUAN ENVIRONMENTAL PROTECTION MATERIALS CO LTD
Filing Date
2025-07-11
Publication Date
2026-06-16

AI Technical Summary

Technical Problem

Existing screening devices lack adjustability and cannot flexibly adjust the screen plate inclination parameters, which leads to easy mixing of coarse and fine sand and makes it difficult to adjust the amount of raw material output, thus affecting the screening effect.

Method used

A coarse and fine sand grading and screening device was designed. The screen plate inclination angle can be flexibly adjusted through components such as connecting seat, telescopic cylinder, movable seat, and connecting plate. It is also equipped with an adjustable feeding mechanism to ensure that coarse and fine sand are discharged separately and to control the raw material feeding speed.

Benefits of technology

It achieves optimal screening results based on different sand and gravel raw materials and screening requirements, avoids mixing of coarse and fine sand, and improves screening efficiency and accuracy.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a kind of coarse sand, fine sand grading screening device, belong to screening technical field, including bottom frame, the upper end surface left end of bottom frame is symmetric and is fixedly connected with two support blocks, the top of two support blocks is rotatably connected with connecting block, the top of connecting block is fixedly connected with conveying frame, fine sand conveying mechanism is equipped on the conveying frame, connecting plate is fixedly connected in the bottom frame.The utility model is provided with connecting seat, telescopic cylinder, movable seat, link plate, first sieve plate, second sieve plate, first material guide frame, second material guide frame and fine sand conveying mechanism, realize the inclination degree of sieve plate according to different sandstone raw materials or screening requirement flexible adjustment, it is convenient to obtain the best screening effect, it is convenient to carry out grading screening to coarse sand and fine sand, and the coarse sand and fine sand screened are accumulated on both sides to avoid the phenomenon of mixing, solve the problem that it is inconvenient to adjust the inclination parameter of sieve plate and the coarse sand and fine sand screened are accumulated respectively in prior art.
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