Deep-cone thickener

Abstract

The invention discloses a deep-cone thickener, which comprises a tank, a large frustum, a small frustum, a harrow frame, a feeder and a harrow frame lifting driving device, wherein the tank is of a cylindrical tube structure, and the upper and lower ends of the tank are respectively provided with flanges; the major-diameter end of the large frustum is upwardly connected with the flange at the lower end of the tank through the flange, and the small-diameter end of the large frustum is downwardly connected with the major-diameter end of the small frustum; the small-diameter end of the small frustum is provided with a throat and a valve device, and the flange at the upper end of the tank is connected with the harrow frame lifting driving device; a spindle of a speed reducer of the harrow frame lifting driving device is connected with a central transmission shaft of the harrow frame, and the upper end of the feeder is connected with a take-off and landing plate through a screw rod. The deep-cone thickener provided by the invention has the advantages of simple structure, low power consumption, high thickening efficiency, high underflow density, and strong adjustability, and is especially suitable for the dry heaping and dry discharge of different minerals and the tailing filling operation. The efficient concentration can be realized, and the discharge concentration of underflow of the thickener is enhanced, so that a mine mouth cannot be clogged.

Description

technical field [0001] The invention relates to a slurry thickening device, in particular to a deep cone thickener. Background technique [0002] China is one of the countries with the largest number of tailings ponds and tailings storage in the world. The large accumulation of tailings has brought many problems that mining enterprises must face and solve, such as resources, land, environment and safety. Thickener is a slurry thickening equipment widely used in mining, metallurgy, chemical industry, environmental protection and other fields. With the depletion of mine resources and the refinement of the particle size of useful minerals, the difficulty of slurry concentration and dehydration is intensified. Both tailings dry stacking and tailings filling require a high-concentration tailings concentration process, and the expansion of industrial scale and the construction of green mines also require high-efficiency thickener concentration operations. The deep cone thickener ...

AI Technical Summary

Problems solved by technology

This requires a large aspect ratio and a small cone angle, resulting in high equipment height and low settlement efficiency

At present, the flocculation and sedimentation method mainly used by thickeners is chemical action, and the dispersion is often not uniform enough during the addition process, resulting in waste of flocculation agents

If the settled mud layer cannot be scraped out in time, it will block the ore discharge port

Poor adjustability of equipment parameters, unable to adapt to the production needs of different minerals

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