A sandstone washing machine

By designing a sand and gravel washing machine, which utilizes spiral blades to agitate and transport sand and gravel, and automatically adjusts the height of the weir plate through a lifting module, the problem of existing sand washing machines being unable to adapt to the washing of sand and gravel of different particle sizes has been solved, achieving efficient cleaning and reduced maintenance costs.

CN224371641UActive Publication Date: 2026-06-19SHANGHAI ZHAOXIN MACHINERY EQUIPMENT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI ZHAOXIN MACHINERY EQUIPMENT CO LTD
Filing Date
2025-06-11
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

Existing sand washing machines cannot flexibly adjust the overflow height of sand and gravel, making it difficult to adapt to the cleaning needs of sand and gravel with different particle sizes.

Method used

A sand and gravel washing machine was designed, comprising a sand washing tank, a central shaft, a spiral blade, a drive device, and a lifting module. Through the stirring and transporting action of the spiral blade, combined with the control of the overflow speed and flow rate by the lifting module, and the automatic adjustment of the weir plate height by using a first servo motor to drive the screw rotation, it can adapt to the washing needs of sand and gravel with different particle sizes.

Benefits of technology

It achieves efficient cleaning of sand and gravel of different particle sizes, improves processing efficiency and cleaning quality, and reduces maintenance costs and downtime.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to a sand and gravel washing machine, comprising: a support frame, a sand washing tank, a central shaft, a drive device, and a lifting module. A discharge port is provided at the bottom left side of the sand washing tank, and a water pump is connected to the bottom left side of the sand washing tank. The outer wall of the central shaft is provided with integrally formed spiral blades at equal intervals from left to right. Using the above technical solution, the sand and gravel to be washed is poured into the top right side of the sand washing tank. The drive device drives the central shaft to rotate, thereby causing the spiral blades on the central shaft to rotate, stirring, washing, and transporting the sand and gravel in the sand washing tank. Large or excessively heavy sand and gravel will settle inside the sand washing tank. The lifting module automatically adjusts the overflow speed and flow rate, and then the sand and gravel will overflow from the left end of the sand washing tank with the water flow to meet the washing needs of sand and gravel of different particle sizes. Finally, the sand and gravel that meet the standards will be transported by the spiral blades to the right end of the sand washing tank and discharged from the discharge port.
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