RU1837939C - Filter unit for pipelines - Google Patents

Abstract

SUMMARY OF THE INVENTION: A conical spiral with a longitudinal slit is installed inside a mesh filter cone located in the pipeline, having a seal in the form of a tape of elastic material attached to one slit to the slit, the other edge of the slit is pointed, the spiral has a rotation drive in the form of a hollow shaft connected to the spiral, one the end of which is placed coaxially in the discharge pipe, while in the annular gap between the shaft and the pipe, a gap value regulator is installed. 2 s.p. f-ly, 4 ill.

Description

The invention relates to filtering equipment, namely, cone water treatment filters used to purify process water or thicken mixtures in industrial and agricultural facilities.

The aim of the invention is to improve the quality of regeneration of the filter element and to provide adjustment of the degree of thickening of the output sludge.

In FIG. 1 shows a general view of a pipeline filter; in FIG. 2-node A in FIG. 1; in FIG. 3 is a section BB in FIG. 1; in FIG. 4-node B in FIG. 1.

The filter contains a filter element in the form of a fixed mesh cone 1 installed in the pipeline 2, a cleaning device in the form of a conical spiral 3 having a longitudinal slot 4, one edge 5 of which is pointed and installed with the possibility of contact with the filter surface,

a pipe 6 attached to the top of the cone 1.

A conical spiral 3 is mounted inside the cone 1 and provided with a seal in the form of a tape 8 made of an elastic material attached at one edge to the blunt edge 7 of the slit 4, the other edge of which is located on the surface of the cone 1.

The drive of the conical spiral 3 is made in the form of a hollow shaft 9 connected to the spiral, the open end of which is placed coaxially in the discharge pipe b, and the other closed end is provided with an impeller 10.

In the annular gap 11 between the hollow shaft 9 and the nozzle 6, a regulator of the gap 11 is installed in the form of a toroidal chamber 12 of elastic material in communication with the source of the working medium supply made by & a container 13 installed on the surface of the pipeline 2, divided by two diaphragms by means of the diaphragm 14

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15 and 16, the cavity 15 is filled with a working fluid and connected to the toroidal chamber 12 via a hose 17, and the cavity 16 is connected to the atmosphere through the holes 18 and the diaphragm 14 position regulator is located in it in the form of a mounted with the possibility of vertical reciprocating movement of the rod 19, attached to the diaphragm. ;

. The slot 4 is in communication with the hollow shaft 9 through the cavity 20.

The filter works as follows. - Contaminated liquid enters the inner cavity of the mesh cone 1, is filtered through its surface and sent to the consumer, and the sediment accumulates on the inner surface of the cone 1. Under the influence of the fluid flow, the impeller 10 rotates together with the shaft 9 and the conical spiral 3. Elastic tape 8 when the spiral 3 rotates, it passes the sediment layer to a sharp edge 5, which cuts the sediment from the surface of the cone 1. Due to the fact that the sealing tape 8 isolates the cavity 18 of the spiral 3, and this cavity is in communication with the atmosphere, then; between the edges 5 and 7, the filtrate is backwashed by the mesh of the cone 1. The filtrate, along with the impurities, passes through the holes 19 into the cavity of the shaft 9 and exits through its open part into the dirt path 6.

Since rarefaction due to ejection flows around the open end of the shaft 9 by the source fluid at its end, the suction of the filtrate and, consequently, the backwash rate of the mesh of the cone 1 in the area between the edges 5 and 7 are significantly increased.

In order to adjust the flow rate of the initial liquid supplied to transport the sediment to the drain pipe 6 through the gap 11, and the densities of the output sediment, the living section of this gap is changed, for which, by raising or lowering the diaphragm 14 with the rod 19, they are suctioned or pumped up liquid into the chamber 12, which, due to a change in its volume, changes the cross section of the gap 11. The higher the concentration of solids in the original liquid and the heavier the filter is, the larger the gap 11. And

on the contrary, with a small concentration of impurities, the gap 11 can be completely blocked by the chamber 12.

Techno Cost-effectiveness

The proposed pipeline filter consists in improving the quality of regeneration of the mesh of the filter element up to 35-40% due to simultaneous scraper cleaning and backwashing.

Formula

Claims (3)

1. A pipe filter containing a filter element in the form of a fixed mesh cone, a cleaning device comprising a conical spiral with a rotation drive having a longitudinal slit, one edge of which is pointed and mounted with the possibility of contact with the filter surface, and a dirt outlet. nozzle attached to the top of the cone, so that in order to improve the quality of regeneration and to ensure the regulation of the degree of condensation of the output sediment, the spiral is installed inside the cone and provided with a seal in the form of a tape attached at one edge to the blunt edge of the slit. Of elastic material , the other edge of which is located on the surface of the cone, the actuator is made in the form of a spiral connected a hollow shaft, the open end of which is placed coaxially in the discharge pipe, while in the annular gap between the shaft and the pipe, a gap value regulator is installed. 2. The filter according to p. T, with the exception of the fact that the gap regulator is made in the form of a toroidal chamber made of elastic material in communication with the source of supply of the working medium. .: 3. Filter according to - pp. 1 and 2, about t l and. and with the fact that the supply medium of the working medium is made in the form of a tank installed on the surface of the pipeline, divided by two diaphragms parts, one of which is filled with a working fluid and connected to the toroidal chamber, while the other is connected to the atmosphere and the diaphragm position regulator is located in it in the form of a rod mounted with the possibility of vertical reciprocating movement attached to the diaphragm. --- l .w // yy / / u Lsh e- u 6C6iC8l fifteen FIG. 5 Figl