RU1787488C - Pipeline filter - Google Patents

Abstract

Purpose: purification of liquids flowing through the pipeline. SUMMARY OF THE INVENTION A mesh filter cone installed in a pipeline has a washing device in the form of a tubular plug mounted on a shaft outside the cone. Inside the cone, opposite the fork tubes, shields are mounted connected to the shaft by means of special glasses. 3 ill.

Description

The invention relates to the field of filtration, namely, strainers (liquid), used for water purification and separation of mixtures in industrial, agricultural production and is an improvement of the device according to the author. testimonial. N 971425.

The specified known device, which is a pipeline filter, contains a housing in the form of a pipe section, a filter element in the form of a mesh cone, a nozzle for removing dirt, coaxially placed in the mesh cone on the liquid inlet side, and a washing device in the form of a tubular plug with nozzles installed rotatably 1 along the outer generatrix of the mesh cone.

However, the known filter is also characterized by a high degree of dilution of the output sludge, as a result of which considerable funds are required to further thicken the sludge, and a significant amount of the starting water is wasted.

The aim of the invention is to increase the concentration of sediment.

In FIG. 1 shows a diagram of the proposed filter, General view; in FIG. 2 - section AA in FIG. 1; in FIG. 3 - node.

The filter comprises a housing 1 in the form of a pipe section 2. A filter element in the form of a mesh cone 3, a nozzle 4 for removing contaminants and a washing device in the form of a tubular plug 5 with nozzles 6. The nozzle 4 is coaxially placed in the mesh cone 3 from the liquid inlet side. The tubular plug 5 is rotatably mounted along the outer generatrix of the mesh cone 3, for which it is connected to the nozzle 7 for supplying washing water by means of a seal 8. The nozzles 6 are directed at an acute angle to the surface of the mesh cone 3. The tubular fork 5 is equipped with collecting trays 9 located opposite the nozzles 6 from the inside of the mesh cone 3. The trays are rigidly connected to the glass 10 through the holes 11. The blind end of the glass 10 is fixed to the base of the plug 5 for welding, and the open one is placed in the inlet of the pipe 4 for opening Ode to pollution and is equipped with a seal 12.

Pipeline filter operates as follows. The flow of source water.

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the passage through the mesh cone 3 leaves a residue on its inner surface and, cleaned, is directed through the pipe 2 to the consumer. When increasing the filtration resistance of the mesh cone 3 to the calculated values due to the accumulation of sediment on its surface, backwashing is carried out. For this purpose, flushing water is supplied through the nozzle 7, which is pulled out from the nozzles 6 placed at an acute angle to the surfaces of the mesh cone 3, the precipitate is washed out and gets into the trays 9 together with the sediment, from where it goes through the holes C into the cavity of the cup 10 and further into the nozzle 4. At the same time, under the influence of reactive forces of the outflow of washing water from the nozzles 6, the plug 5 acquires a rotational movement together with the trays 9. This allows the backwashing of the entire surface of the mesh cone 3. to be carried out sequentially. Since the edges of the trays 9 are In the immediate vicinity of the surface of the mesh of the cone 3, the precipitate washed with wash water from the mesh is additionally almost not diluted with the source water. Since the cavity of the trays is connected to the inlet of the nozzle 4 for removal of contaminants by means of a nozzle 10, dilution of the sediment with the original contaminated liquid in the cavity of the cone 3 is also prevented.

The technical and economic efficiency of the proposed filter compared to the prototype is to reduce the water in the sludge by 2-3 times due to the isolation of the sludge washed from the surface of the filter mesh from direct contact with the original filter fluid by installing trays in close proximity to the surface of the grid opposite the nozzles of the tubular plug, making these trays rotatable simultaneously with the rotation of the tubular plug and connecting the trays through the glass to the inlet of the nozzle for opening Ode to knowledge.

Claims (1)

The claims A pipe filter comprising a housing in the form of a pipe section, a filter element in the form of a mesh cone, a washing device located on the shaft and a pipe for removing dirt, coaxially placed in the mesh cone on the liquid inlet side, characterized in that, in order to increase the concentration of sediment, it is provided with trays placed inside the cone in the form of trays attached by means of a cup to the shaft of the washing device, with the upper part of the cup located in the nozzle for removing contaminants. FIG. 2