Multi-tensioning belt filter press

Abstract

The invention discloses a multi-tensioning belt filter press. The multi-tensioning belt filter press comprises a drive device, an upper filter belt, a lower filter belt, an upper filter belt tensioning roller, a lower filter belt tensioning roller, an upper filter belt drive roller, a lower filter belt drive roller, a group of pressure rollers, a group of guiding rollers, an upper filter belt bias adjusting roller, a lower filter belt bias adjusting roller, an upper filter belt cleaning water pipe and a lower filter belt cleaning water pipe which are arranged on a rack. The multi-tensioning belt filter press is characterized by further comprising a pressure roller tensioning device, wherein tensioning devices are arranged on one or more pressure rollers in the group of the pressure rollers, or, tensioning devices are arranged all the pressure rollers. Aiming to realize the compensation of extrusion force on the pressure rollers in the group of pressure rollers, the extrusion force on each of the pressure rollers is basically consistent with the tensioning force of the tensioning rollers, so that the problems that the extrusion force of the material of the belt filter press is reduced because of the loss of the extrusion force on the pressure roller in the group of the pressure rollers, and the dewatering effect is not ideal are solved; and under the same condition, compared with the conventional belt filter press, the water content of a filter cake of a material subjected to filter pressing is reduced by 5-15 percent, so that the efficiency is obvious.

Description

technical field [0001] The invention relates to a filter press in the field of dehydration equipment, in particular to a multi-tension belt filter press. Background technique [0002] In metallurgy, chemical industry, papermaking, tanning, alcohol sewage treatment, poultry breeding and other industrial and agricultural production, it is often necessary to dehydrate waste residue and waste. Because of its continuous and uninterrupted production, the belt filter press is easy to operate and low in operation and maintenance costs. , The dehydration efficiency is relatively high and it is widely used. After years of development, the existing belt filter press has become a relatively mature equipment product, but generally speaking, the moisture content of the filter cake after dehydration is still relatively high, which cannot meet the requirements for subsequent treatment. [0003] The dehydration of the belt filter press is to enclose the material through the filter belt. Dur...

AI Technical Summary

Problems solved by technology

[0007] In addition, the upper filter belt cleaning water pipe of the existing belt filter press is installed above the upper filter belt, and the filter belt is cleaned by spraying water from top to bottom, that is, the cleaning is performed from the working surface of the upper filter belt. Flushing, the cleaning effect is not good, and it also affects the improvement of the dehydration efficiency of the equipment to a certain extent

The upper filter belt deflection adjustment roller and the lower filter belt deflection adjustment roller are too small for the installation of the upper filter belt and the lower filter belt, the filter belt deflection adjustment is not sensitive, and the filter belt is easy to deviate

Moreover, because the installation encirclement degree of the upper filter belt and the lower filter belt is too small, a large local slope cannot be formed, and the cleaning water cannot be separated from the filter belt in time when the cleaning water pipe cleans the filter belt, which will cause the cleaning water to flow along the filter belt. The tape flows into the material that is filtered and will be filtered, which also affects the dehydration effect of the equipment.

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