Cylindrical gap type continuous filter press

Abstract

The invention discloses a cylindrical gap type continuous filter press. A slurry homogeneous stirrer is arranged in a slurry homogenizing tower, and a slurry outlet pipe of the slurry homogenizing tower is fixedly communicated with a high-pressure slurry inlet through a high-pressure slurry pump. The filter press consisting of a dewatering part and a heating part also comprises a worm drive pair, a discharging circular seam regulator, a cylindrical inner steel cylinder, a cylindrical outer steel cylinder, a thermal-protective coating, an inner water jacket, an outer water jacket and a heating furnace, wherein the inner steel cylinder and the outer steel cylinder of the dewatering part at the upper part are uniformly provided with a plurality of filtering holes along the circumference, and the inner steel cylinder and the outer steel cylinder of the dewatering part at the lower part are internally provided with the heating furnace; and the inner water jacket is fixedly communicated with the outer water jacket through an inner water jacket communicating pipe and an outer water jacket communicating pipe which are symmetrically arranged front and back, and the inner water jacket communicating pipe and the outer water jacket communicating pipe are arranged between the inner steel cylinder and the outer steel cylinder. The cylindrical gap type continuous filter press has the advantages of good dewatering property, wide application range, capability of realizing continuous and automatic control, and low operation cost.

Description

technical field [0001] The invention relates to a filter press, in particular to a cylindrical slot type continuous filter press. Background technique [0002] At present, water-containing materials are usually dehydrated by thermal and mechanical methods. Both theory and practice have proved that the energy consumption of thermal dehydration is dozens or even hundreds of times that of mechanical dehydration. Therefore, for materials with high water content, mechanical dehydration is generally used first, and the remaining water that cannot be removed by mechanical methods is then removed by heat to achieve the minimum. dehydration energy consumption. At present, the widely used mechanical dehydration technology is centrifugal dehydrator and filter press. Commonly used filter presses are: box-type, plate-and-frame, spiral, and belt-type filter presses. Box-type and plate-and-frame type are intermittent dehydration. The disadvantages are: the production efficiency is low an...

AI Technical Summary

Problems solved by technology

At present, the widely used mechanical dehydration technology is centrifugal dehydrator and filter press. Commonly used filter presses are: box-type, plate-and-frame, spiral, and belt-type filter presses. Box-type and plate-and-frame type are intermittent dehydration. The disadvantages are: the production efficiency is low and the labor cost is high; the latter two are continuous dehydration, and the disadvantages are: the material applicability of the screw filter press is narrow, and the loss of the press belt of the widely used belt filter press is prominent, which makes the dehydration The cost increases, and the above types of filter presses and centrifugal dehydrators generally can only reduce the water content of materials to about 70%, and there are few models with dehydration lower than 60%; compared with materials with lower final water content ( For example, the dehydrated slag with a final moisture content of 8%, mechanical dehydration can reduce the moisture content of the material by one percentage point, and the total energy consumption will be reduced by about 3% on average

However, due to the relationship between the structure and working principle of the existing box-type and plate-frame filter presses, there will be great contradictions in parameter design; for example, the pressure of box-type and plate-frame filter presses is mainly transmitted by beams and columns, and the stress is relatively Concentrate and increase the pressure P, the steel consumption and energy consumption of the equipment will increase significantly; prolonging the pressurization time and reducing the thickness of the material layer can obtain a more ideal final moisture content, but this will sharply reduce the output or increase the weight and volume of the equipment

At the same time, the material mold structure of box type and plate and frame filter press is not suitable for heating settings.

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