Feeding well device for thickener

Abstract

The invention discloses a feeding well device for a centre drive thickener. A feeding well wall is cylindrical; an annular horizontal outer edge is formed in the lower edge of the feeding well wall; a feeding pipe is connected with the outer side of the feeding well wall; a feeding pipe orifice is positioned below the overflow liquid level of the thickener; an overflow tank is arranged below the feeding pipe orifice; the overflow tank is horizontally distributed in a circle along the inner side of the feeding well wall, and the edges of the overflow tank are equal in heights; a conical guide plate is arranged at a lower outlet of the feeding well wall, the edge of the conical guide plate is connected with the outer edge of the lower edge of the feeding well wall through guide vanes, and the guide vanes are uniformly distributed; a flocculating agent addition tube is arranged on the inner side of the overflow tank; and dilution openings are uniformly formed in the feeding well wall. According to the feeding well, any extra power is not needed, and the energy consumption is reduced; ore pulp is uniformly distributed in the feeding well and flows out of the feeding well from all directions, and the utilization rate of settling area is improved; and moreover, the ore pulp flows out of channels between the guide vanes which form an included angle of 40-50 degrees with the radial direction, so that a settled layer in the thickener is prevented from being impacted, the underflow concentration is high, and the feeding well device is convenient to popularize.

Description

technical field [0001] The invention is applied to industries such as wet mineral processing, coal, steel, chemical industry, building materials, environmental protection, etc., and relates to a feed well device for horizontal tangential feeding of a central drive concentrator, which is mainly used in the cloth of the concentrator. Background technique [0002] Thickener is a continuous working concentration and clarification equipment, suitable for dehydration of concentrate and tailings in wet beneficiation operations, and is also widely used in coal, steel, chemical, building materials, environmental protection and other industries; the feed well is an important part of the thickener It is of great significance to improve the solid-liquid separation efficiency of the concentrator. Since the particle size of the material processed by the thickener is generally small and the sedimentation is slow, adding flocculant to the pulp has become the main way to increase the sedimen...

AI Technical Summary

Problems solved by technology

The structure of the feed well of the existing concentrator has been improved, such as the addition of an inner guide tube, a radial diversion guide plate, etc., but there are still many deficiencies, such as the feed well does not have a strong flow stabilization effect, and the disturbance to the flocculated pulp is large , Destroy the flocs that have been formed, there is no dilution system in the feed well, and the flocculant and pulp are mixed unevenly, etc.

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