SU1576262A1 - Filter for purifying working fluid in electrochemical and electrophysical machining - Google Patents

Abstract

The invention relates to electrochemical and electrophysical processing and can be used in devices designed to clean and supply the working fluid from various solid inclusions. The purpose of the invention is to increase productivity by increasing the filter operation time between cleanings, as well as by increasing the area of the filter surface. The filter includes a housing 1, intake 2 and outlet 8 nozzles. A filter element 3 in the form of a set of plates consisting of detachable sections is placed in the housing. Washers are installed between the plates. The filter has baffles 6 and 9 fixing the filtering element, inlet 10, drainage holes 11 located in the corners of the triangular compartments and going into the sump 13 connected to the drainage nozzle 14, and a cone 15 to change the direction of movement of the inlet flow of the liquid to be filtered. 2 Il.

Description

The invention relates to electrochemical and electrophysical processing and can be used in devices designed to clean and supply the working fluid from various solid inclusions, such as sludge.

The aim of the invention is to increase the filter performance by increasing its operation time between cleanings, as well as by increasing the area of the filter surface.

FIG. 1 shows a filter for cleaning the working fluid during electrochemical and electrophysical processing, longitudinal section; in fig. 2 is a view A of FIG. one.

The filter includes a housing 1 with a suction port 2. Inside the housing 1 is placed a filter element 3, made in the form of a set of plates 4, consisting of detachable sections installed along a broken line (in this case, in the form of an octagonal star). In each section between the plates 4, washers 5 were installed, the thickness of which was selected depending on the dispersity of the filtered liquid. The filter element is fixed on one side by a partition 6 having windows 7 in the outlet 8, and on the other side by a partition 9 with an inlet 10 in it.

In the partition 9, there are also drainage windows 11. located in the corners of the triangular compartments 12 and outgoing into a sump 13 connected to the drainage pipe 14. A device, such as a cone 15, is installed inside the filter element to change the direction of movement of the incoming flow of the filtered liquid.

The filter works as follows.

When pumping the working fluid at

electrochemical or electrophysical

processing electrolyte flow through the intake

pipe 2 runs onto a cone 15 and, changing the direction of its movement, falls into the triangular compartments 12 formed by the broken line of the filter element. Mechanical impurities are held up by a set of plates 4 and washed away by a flow of liquid.

along the plates in the corners of the compartments, thereby cleaning the surface of the filter from sediment. After accumulating in this zone to a certain extent, the sediment is squeezed out through the drainage ports 11 in the partition 9 into the septic tank 13. As it accumulates, the sediment is removed from the settling tank through the drainage port 14. The filtered liquid through the openings 7 in the partition 6 enters the outlet 8.

20

Claims (1)

Invention Formula A filter for cleaning the working fluid during electrochemical and electrophysical processing, comprising a housing with a filter element in the form of a set of plates disposed therein, an intake and discharge connections, characterized in that, in order to increase productivity, the filter is provided with two partitions between which filtering plates assembled into detachable sections of a triangular shape, forming cavities connected with an outlet nozzle by openings made in a partition adjacent to the outlet nozzle, the cavity between the sections are coupled through the drainage window formed in the bottom wall with otstoynikoi between the bottom wall and the housing provided with a drain pipe. Type A 12 and Fi. 2