A dual sorting device and method for coral sand particle size and shape

By designing a coral sand particle sorting device with multi-stage screens and inclined guide plates, the problem of difficulty in distinguishing the shape of coral sand in the existing technology has been solved, realizing efficient and economical dual screening of particle size and shape, which is suitable for laboratory and island and reef engineering.

CN120325525BActive Publication Date: 2026-07-21INST OF ROCK & SOIL MECHANICS CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
INST OF ROCK & SOIL MECHANICS CHINESE ACAD OF SCI
Filing Date
2025-04-07
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Existing technologies are unable to effectively distinguish coral sand particles of different shapes (such as flakes, rods, and blocks) within the same particle size range, and traditional equipment has low screening efficiency and high cost, making it difficult to meet the needs of large-scale sorting.

Method used

A dual sorting device for coral sand particles based on both particle size and shape was designed, including a particle size sorting system, a flaky particle sorting system, and a block and rod-shaped particle sorting system. The device achieves dual screening of particle size and shape through multi-stage screens and inclined guide plates. Combined with a vibration mechanism and valve design, the screening efficiency and accuracy are improved.

Benefits of technology

It achieves complete separation of flaky, rod-shaped, and blocky coral sand within the same particle size range, significantly improving sorting accuracy and efficiency, reducing equipment modification costs, and is applicable to resource-constrained environments, extending to the shape sorting of other non-spherical particles.

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Abstract

The application discloses a double sorting device for the particle size and shape of coral sand particles, which comprises multiple sorting systems, sorting system fixing supports and a screening machine, the sorting system comprises a particle size sorting system, a flaky particle sorting system and a blocky and rod-shaped particle sorting system connected in sequence from top to bottom, is compatible with an existing standard inspection screening machine, has a simple structure, does not need to introduce complex mechanical equipment on the basis of reserving the traditional particle size sorting function, and significantly reduces the equipment modification cost when the screening mesh is ordered as required; and the application further discloses a double screening method for the particle size and shape of coral sand particles, the device can simultaneously screen sample particles in multiple different target particle size ranges, and can respectively perform shape screening on the sample particles in different target particle size ranges, such as flaky, blocky and rod-shaped shape screening, and through optimized screening parameters, the "leakage screening" and "mixed screening" phenomena are effectively avoided.
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