A sand water separation device for downhole filling

By integrating centrifugal separation and hot air drying into a sand-water separation device, the problem that downhole sand-water separation equipment cannot effectively reduce the water content and impurity content of sand and gravel has been solved, achieving efficient and simple sand-water separation and meeting downhole filling requirements.

CN224550176UActive Publication Date: 2026-07-24SHANDONG WEISHANHU RARE EARTH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANDONG WEISHANHU RARE EARTH CO LTD
Filing Date
2025-09-04
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Existing technologies for sand-water separation equipment in underground metal mines cannot effectively reduce the moisture content and impurity content of sand and gravel, leading to insufficient compaction of the filler and the risk of later shrinkage and cracking. In addition, the additional equipment increases the difficulty of installation and the processing cycle.

Method used

A sand-water separation device integrating centrifugal separation and hot air drying is designed. By combining spiral blades and a separation cylinder, the liquid is separated by centrifugal force and the water is removed by hot air. The ball bearing and bearing structure reduces wear and achieves efficient solid-liquid separation.

Benefits of technology

It achieves efficient and convenient sand-water separation in the confined space of the well, reduces the water content and impurity content of sand and gravel, meets the technical standards of the filler, and avoids the difficulty of installing additional equipment and extending the processing cycle.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224550176U_ABST
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Abstract

The utility model provides a sand water separation device for underground filling mainly relates to the mining technology field. A sand water separation device for underground filling, including the casing, the casing top is opened with the feed port and is opened with the discharge gate in the bottom, the casing bottom fixedly arranged drain pipe, fixedly set up the air intake pipe on the discharge gate, the transmission setting separates the cylinder in the casing, spiral blade is fixedly set up in the separation cylinder. The utility model has the advantages of: through the integrated design of centrifugal separation, hot air drying, the centrifugal force is generated in the separation cylinder rotation and carries out solid -liquid separation, and the hot air that utilizes the air intake pipe and pass in further takes away the combined water of sand and stone adsorption.
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