Flocculation grading dehydration device

Abstract

The invention relates to the technical field of solid-liquid separation, in particular to a flocculation grading dehydration device, which is characterized in that an initial material is fed through a feeding hole in the upper end of a tank body, then a chemical agent is added into the initial material through a chemical agent adding mechanism, after the initial material is subjected to a flocculation reaction, a lower sediment material sinks into a sedimentation tank, and an upper liquid overflows through an overflow hole; in the centrifugal dewatering area, a screen basket is rotated, so that sediment materials falling into the screen basket do centrifugal movement, water in the sediment materials is moved into a flow guide cavity through a liquid through hole in the side wall of the screen basket, liquid in the flow guide cavity flows to a centrifugal liquid outlet, and the dewatered materials in the screen basket are moved out of the screen basket after centrifugal movement; in the particle screening area, the screening mechanism screens particles of different size fractions in the dehydrated materials discharged by the screening basket, and water screened out in the screening process descends and is discharged through a water outlet; and liquid discharged from the centrifugal liquid outlet and the overflow port is collected by the overflow dispersion pipeline and then is discharged from a mixed liquid outlet of the overflow dispersion pipeline.

Description

technical field [0001] The invention relates to the field of solid-liquid separation equipment, in particular to a flocculation classification dehydration device. Background technique [0002] In terms of wet coal preparation, the water-containing coal materials need to be processed through step-by-step flocculation, dehydration, and classification. [0003] Regarding material dehydration, the existing technologies mainly include the following types: [0004] (1) Dehydration screen [0005] Dehydration screen is the most used dehydration equipment in coal preparation plants, and it is also a must-have dehydration equipment in wet coal preparation plants. The invention patent with the publication number CN108800849A discloses an adjustable linear dewatering screen. The linear dewatering screen has a compact structure and is easy to use, but it is prone to slow down the speed of the exciter and increase the temperature of the bearing, which will cause the linear screen to fa...

AI Technical Summary

Problems solved by technology

[0014] The invention patent with the publication number CN10107226A discloses a belt filter press. The defect of this patent is that it cannot sieve coarse and fine particle materials, which has certain limitations.

[0015] To sum up, the existing process is relatively complicated, and multiple different equipment are usually used to complete the whole process, and it takes time for materials to flow between different equipment, which increases the time gap of operation, and the production efficiency is low, which cannot adapt to automation production demand

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