Disc type vacuum filter

Abstract

The invention relates to the technical field of disc type vacuum filters, and provides a disc type vacuum filter. The disc type vacuum filter comprises a filter disc, a main shaft, an air distributiondevice, a stirring shaft and a plurality of scraper mechanisms, opposite filter plates with filter holes are movably arranged in a space defined by the side plates on the two sides, the top plate andthe connecting cavity, and the pore diameter of filter holes of the filter plate is 0.5 cm to 1cm; a filter cloth sleeve wraps a space formed by the side plates, the filter plate and the top plate, the filter cloth sleeve wraps the side plates, the filter plate and the top plate by folding the filter cloth, two free edges of the filter cloth are closed through zippers, and the main shaft and thestirring shaft are respectively formed by combining a head shaft, a middle shaft and a tail shaft through star-shaped elastic couplers. The disc type vacuum filter solves the problems that the filtering effect of the filter disc of the existing disc type vacuum filter is not ideal and the maintenance cost of the main shaft and the stirring shaft is high.

Description

technical field [0001] The invention relates to the technical field of disc vacuum filters, in particular to a disc vacuum filter. Background technique [0002] Disc vacuum filter is a kind of solid-liquid separation equipment, which uses vacuum as the filtering power to separate solid-liquid from ore pulp. Disc vacuum filter is suitable for dehydration of iron concentrate and non-ferrous metal concentrate, and also suitable for dehydration of coal washing plant, non-metallic mine, chemical industry and environmental protection. It is widely used in metallurgy, coal, chemical industry, building materials, environmental protection and other fields. application. Disc vacuum filter is composed of main components such as filter disc, main shaft and gas distribution device, main shaft drive, stirring device, material guide and unloading device, tank body, ore feeding device, and lubrication system. In order to improve the structural stability of the main shaft and the stirring ...

AI Technical Summary

Problems solved by technology

In order to improve the structural stability of the main shaft and the stirring shaft, the existing technology is to use the three-section combination of the head shaft, the intermediate shaft and the tail shaft. The head shaft and the tail shaft are lined with wear-resistant bushings, and the packing seal is used. To prevent the pulp from escaping, but the water pressure is unstable during use, and the water contains impurities, and the use of the shaft sleeve makes the linear velocity at the seal of the intermediate shaft high, which in turn makes the speed between the intermediate shaft and the head shaft and tail shaft The difference is easy to damage the entire main shaft or stirring shaft, and when a part of the filter fan rotates when it absorbs the ore slurry, it needs to temporarily stop until the filter cake is formed before continuing to rotate, so that the intermediate shaft of the main shaft, the head shaft and the tail shaft are often suspended. The impact of the rotational inertia force makes the main shaft susceptible to impact wear, and there is also a hidden danger of ore slurry escaping, which greatly reduces the operating rate of the equipment and high maintenance costs. At the same time, the existing filter disc has an unsatisfactory filtering effect.

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