Coarse slime separation and dehydration combined equipment and middling coal dissociation and recleaning process

By using the combined process of crude coal slime sorting combined with dehydration equipment and vertical vibration centrifugal mechanism in the Sino-Coal treatment process, the problem of insufficient dissociation between refined coal and gangue and low recovery rate in Sino-Coal treatment is solved, and high efficiency is achieved Recycling of refined coal and resource utilization.

CN119488985AActive Publication Date: 2025-02-21ZAOZHUANG MINING GRP CO LTD +1
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Patent Information

Application Number
CN202411703558.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-26
Publication Date
2025-02-21
Estimated Expiration
2044-11-26

AI Technical Summary

Technical Problem

The existing Chinese coal treatment process has problems such as insufficient dissociation between refined coal and gangue, low recovery rate and waste of resources.

Method used

The separation effect of refined coal slime and dehydration equipment is adopted, combined with vertical vibration centrifugal mechanism, and integrated equipment is formed. Through a combination of multi-step crushing, screening, tempering and flotation, the separation effect of refined coal and gangue is significantly improved.

Benefits of technology

It improves the recovery rate of refined coal, reduces the carbon content in tail coal, realizes efficient recycling of Chinese coal and refined coal, and improves the purity of refined coal and overall resource utilization efficiency.

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Abstract

The invention discloses coarse slime separation and dehydration combined equipment and a middling coal dissociation and re-separation process, and relates to the technical field of coal processing and mineral separation. A coarse coal slime sorting machine and a scraper vibration centrifugal dehydrator are combined to form innovative integrated equipment, the problems that in the prior art, coarse coal slime sorting precision is low, dehydration efficiency is not high, and the technological process is complex are solved, meanwhile, middling coal treatment is improved, and the utilization rate of the middling coal is improved. The combined process of multi-step crushing, screening, tempering and flotation is adopted, the separation effect of clean coal and gangue is remarkably improved, the recovery rate of clean coal is increased, and the carbon content in tailings is reduced. By means of the improved technological process, efficient recovery of the middling coal and the clean coal is achieved, and the purity of the clean coal and the overall resource utilization efficiency are improved.
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Citation Information

Patent Citations

  • Coking middling coal dms-flotation combined separation process

    CN104722390A

  • Separation method for roughing slime through teetered bed separator (TBS) and concentrating coarse slime difficult to separate through slime dense medium cyclone

    CN105080701A

  • Efficient separation process for coarse slime

    CN112371324A

  • Use of a fluidised bed slurry sorter as a sorting apparatus in the processing of flotation tailings

    DE3639044C1

  • Coal preparation system

    US5676710A

Cited By

  • Efficient screening and recleaning device for pretreated tail mud

    CN120679669A