Sheathed circular truncated cone type filter press

Abstract

The invention discloses a sheathed circular truncated cone type filter press which comprises an outer circular truncated cone-shaped sleeve and an inner circular truncated cone-shaped sleeve, wherein the inner circular truncated cone sleeve is arranged at the middle part of the outer circular truncated cone sleeve; a filter press rubber sleeve is arranged on the inner wall of the outer circular truncated cone-shaped sleeve; a plurality of small holes are formed in the inner circular truncated cone-shaped sleeve; filtering cloth is arranged on the outer wall of the inner circular truncated cone-shaped sleeve; air inlet pipes are arranged at two sides of the outer circular truncated cone-shaped sleeve respectively; an inner sleeve water outlet pipe is arranged at the bottom of the inner circular truncated cone-shaped sleeve; a discharging plate is arranged at the upper part of a circular truncated cone-shaped filtering chamber; a plurality of discharging holes are formed in the discharging plate; a feeding pipe which is communicated with the inside part of the outer circular truncated cone-shaped sleeve is arranged at one side an upper cover; high pressure air inlet pipes which are respectively communicated with the inside parts of the inner circular truncated cone-shaped sleeve and the outer circular truncated cone-shaped sleeve are arranged at the other side of the upper cover; and a water outlet pipe of the filter press machine connected with an inner sleeve water outlet pipe is arranged on a bottom cover. The filter press dehydration is implemented through high pressure gas; fine coal grains are retained inside the circular truncated cone-shaped chamber to be formed as filter cakes; the filter cakes are discharged by opening the bottom cover automatically; the whole filter press process is simple and easy to implement with few maintenance and high efficiency; the solid and liquid separation effect is good; and the energy consumption is low.

Description

technical field [0001] The invention relates to a filter press, in particular to a table-mounted filter press applied to dehydration of fine-grained coal. It belongs to the application field of chemical industry, mineral processing and clean coal technology. Background technique [0002] At present, the dehydration of fine-grained coal at home and abroad is dominated by plate-frame / box-type filter presses. The structure is mainly composed of a square (or rectangular) metal (or synthetic material) frame covered with rubber plates and filter cloth. The problem is that the filter press The plate frame / box frame has poor pressure resistance, is easy to deform, and is easy to form phenomena such as running, popping, dripping, and leaking. As a result, the solid content of the filtrate is relatively high, and the moisture content of the filter cake is also high. At present, the tubular filter press that has just appeared has enhanced pressure resistance. Its structure is mainly c...

AI Technical Summary

Problems solved by technology

[0002] At present, the dehydration of fine-grained coal at home and abroad is dominated by plate-frame / box-type filter presses. The structure is mainly composed of a square (or rectangular) metal (or synthetic material) frame covered with rubber plates and filter cloth. The problem is that the filter press The plate frame / box frame has poor pressure resistance, is easy to deform, and is easy to form phenomena such as running, popping, dripping, and leaking. As a result, the solid content of the filtrate is relatively high, and the moisture content of the filter cake is also high

At present, the tubular filter press that has just appeared has enhanced pressure resistance. Its structure is mainly composed of two metal tubes of the same length, the inner and outer thickness, which are combined by the upper and lower covers. The outer wall of the inner tube is laid with filter cloth, and the inner wall of the outer tube is laid with rubber plates; However, the existing problem is that the inner tube and the lower cover are very heavy and need to be moved. After the filter cake is formed, it can only be unloaded by moving out of the outer tube; the connection between the inner tube and the upper and lower covers is easy to wear due to frequent movement; The role of the cake is very small, and the unloading is basically manual; it is easy to cause damage to the filter cloth; it cannot be produced efficiently and automatically; the filter cloth is not cleaned, which increases the resistance to reproduction

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