A dense medium disturbed bed coarse slime separation system

Abstract

The invention discloses a dense medium jamming bed coarse slime separation system. The system is characterized in that a coal slime water bucket provides materials for a coal slime water classifying cyclone through a feeding pump, a dense medium suspension cylinder provides rising medium flow for a dense medium jamming bed separator through the feeding pump, medium coal separated out through the dense medium jamming bed separator enters a medium coal arched sculping screen for sculping, oversize products enter a medium coal magnetic separator for magnetic separation, magnetic separator tailings enter a medium coal arched dewatering screen for dewatering, and oversize products enter a medium coal high-frequency vibration dewatering screen for secondary dewatering so that a final medium coal product can be obtained; clean coal separated out through the dense medium jamming bed separator enters a clean coal arched sculping screen for sculping, oversize products enter a clean coal magnetic separator for magnetic separation, magnetic separator tailings enter a clean coal arched dewatering screen for dewatering, oversize products enter a clean coal high-frequency vibration dewatering screen for secondary dewatering, and oversize products enter a clean coal centrifugal dehydrator to obtain final clean coal. In this way, the medium recycling link is omitted, and production, operation and maintenance are facilitated.

Description

technical field [0001] The invention belongs to the field of coal washing, in particular to a dense medium interference bed coarse coal slime sorting system in a coal washing process system. Background technique [0002] With the increasingly complex properties of raw coal and the mechanization of coal mining technology, the content of coarse coal slime in raw coal is increasing. "Effective separation" of coarse coal slime has become a key issue in the work of various design units and coal preparation plants. [0003] At present, how to effectively separate the coarse coal slime with a particle size of 3mm (or 2mm) to 0.20mm (or 0.10mm) has attracted extensive attention from the coal preparation industry. Attempts, related products and new processes have also come out and applied one after another. Now the main applications are coal slime dense medium cyclone, spiral separator, disturbed bed separator, water medium cyclone, etc., among which: [0004] 1) Spiral separator: T...

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Problems solved by technology

[0008] In view of this, the object of the present invention is to provide a dense medium disturbed bed coarse coal slime separation system to solve the problem of poor separation effect of traditional process separation on coarse coal slime, narrow range of feed particle size, large limitations and poor adaptability. Poor, poor sorting accuracy

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