Raw coal centrifugal dewaterer for coal mines

Abstract

The invention discloses a raw coal centrifugal dewaterer for coal mines, comprising a centrifugal dewatering assembly and a drive device, wherein the centrifugal dewatering assembly comprises a shell, a liquid-throwing cylinder and a material-throwing disc which are internally sheathed in sequence. When in use, the raw coal containing water falls on the material-throwing disc by a chute; the material-throwing disc rotates at high speed under the drive of a dewatering power input shaft; a material-throwing blade acts on the raw coal in a centrifugal manner, the coal and the water are separatedinitially, simultaneously the water and the coal are laminated instantaneously on the liquid-throwing cylinder due to centrifugal force, the water flows out through sieve pores on the wall of the liquid-throwing cylinder and enters a water-receiving groove along an interlayer; the dewatered raw coal falls on the material-receiving chute along the inner surface of the liquid-throwing cylinder; andfor preventing the coal from being stuck at the inner wall of the liquid-throwing cylinder, an arc-shaped blanking rib plate is arranged, the centrifugal principle is used for accelerating the falling of the dewatered raw coal, and the coal is dewatered more thoroughly in shorter time, thus avoiding long-period static placement and improving the production efficiency. In the raw coal centrifugal dewaterer, the occupied area can be omitted compared with the sedimentation tank, thus reducing investment, labor operation and production cost.

Description

technical field [0001] The invention relates to a raw coal processing device, in particular to a raw coal centrifugal dehydrator for coal mines. Background technique [0002] The raw coal in the coal mine will be mixed with a lot of water after mining, and it needs to be dehydrated before subsequent transportation and processing. [0003] In the prior art, the water-containing raw coal is transported to a sedimentation tank in a designated area, and the coal and water are separated through the sedimentation tank. Since the coal-water separation in the sedimentation tank adopts a static method, the treatment cycle is longer and the production efficiency is reduced; the sedimentation tank covers a larger area, and the investment is higher, and when the water flows away, some raw coal will be taken away, wasting coal resources, and at the same time, it is harmful to the environment. create pollution. [0004] Therefore, there is a need for a device for dehydrating the raw coa...

AI Technical Summary

Problems solved by technology

Because the coal-water separation in the sedimentation tank adopts a static method, the treatment cycle is longer and the production efficiency is reduced; the sedimentation tank covers a larger area, and the investment is higher, and when the water flows away, some raw coal will be taken away, wasting coal resources, and at the same time, it is harmful to the environment. create pollution

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