Automatic rake-lifting concentrator

Abstract

An automatic rake lifting thickener consists of a main axis, a bridge, a mud scraping rake, a chute, a feed port, a flow distributing barrel, a flow stabilizing barrel, a material room and a main axis driving device. The technical requirements are as follows: the main axis is arranged at the center of the cell body, and is provided with a central stirring device and failure pre-remover; the bridge consists of a fixed bridge which feeds materials and a rotary bridge which can drive a plurality of adjustable mud-scraping rakes to rotate. In the segmented hydraulic automatic lifting rake of the invention, the rake frames can be separately or collectively lifted according to the resistance, which is reliable; the height of the rakes lifting can be randomly adjusted according to the need, and the mud scraping board can be lifted from the lowest working position to above the water level, thus facilitating maintenance; a traveling gear and the main axis driving device can respectively drive the continuous variable rotation of the bridges and the central stirring device, and has the advantage of strong adaptability to the dehydration operation of different pulps. The thickener has the advantages of high automation, labor force saving, good gas-liquid separation effect, wide sphere of application, reliability and security, stable operation and high work efficiency, etc.

Description

technical field [0001] The invention belongs to the technical field of dehydration equipment, in particular to an automatic rake-lifting concentrator for solid-liquid separation of different kinds of slurries. Background technique [0002] At present, thickeners are commonly used large-scale solid-liquid separation and dehydration equipment in mineral processing plants, coal preparation plants, thermal power plants, urban sewage treatment plants, and water supply plants. This kind of concentrator has changed the original era of using solid-liquid sedimentation to achieve solid-liquid separation. The efficiency of solid-liquid separation of slurry has been greatly improved, so that the separated solid-liquid two phases can be reused. For many years, the thickeners used by various factories and enterprises still adopt the old-fashioned thickening and discharging methods. Although the thickening effect can be achieved, due to the different solid-liquid composition ratios of slu...

AI Technical Summary

Problems solved by technology

For many years, the thickeners used by various factories and enterprises still adopt the old-fashioned thickening and discharging methods. Although the thickening effect can be achieved, due to the different solid-liquid composition ratios of slurries produced by different enterprises, slurries with a large solid composition ratio In the process of concentration, it is easy to produce "pressing rake" accidents, and the control of the concentration of the bottom material is not ideal, the adaptability to the dehydration of different slurries is poor, and the degree of automation is low, which hinders its application in many occasions. application

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