SU417969A1 - Device for filter charge treatment - Google Patents

Description

one

A known filter cleaning unit, comprising a mobile receiving chamber with flushing pipes, provided with an actuator.

The purpose of the invention is the distribution of the filtering material along the height of the filter with a decrease in particle size from top to bottom.

This is achieved by the fact that the receiving chamber is made of two compartments and is equipped with vertical rotating screws, between which are mounted perforated water supply tubes. In this case, the axes of the screws are perforated, and the spirals of the screws have longitudinal holes.

FIG. 1 shows the proposed device, the cut; in fig. 2 - element of the screw; in fig. 3 - an element of a perforated water supply tube.

The device includes a movable receiving chamber 1 with flushing pipes 2, made of two compartments: front 3 and rear 4 connected to the drive 5. The rear compartment is equipped with screws 6, between which are mounted perforated water supply tubes 7, the axes of screws 6 being perforated and spiral screws have longitudinal holes 8.

A pump installed on the platform pumps water through the drain pipe 9 and discharges it into the sewer. Simultaneously with the suction pump, the feed pump is activated, which takes the source water from the filter and supplies it to the distribution manifolds 10 and from there to the washing pipes 2. A part of this water 11 flows into the collectors 12 and then into the perforated water-conducting tubes 7. The water discharged from the washing pipes 2 blurs the flow of filter material 13 in the area of the front compartment 3 of the receiving chamber, ensuring free and fast immersion of the washing pipes 2 into the layer of filter material 13.

Leaving the perforated water supply pipes 7, the water also provides a certain erosion of the load on the area of the rear compartment 4 of the chamber.

After the washing water is supplied to the pipes 2 and 7, the screws 6 rotate, which, together with the pipes 7, freely and quickly, like the pipes 2, are immersed in a layer of filter material and material 13.

The layer of filter material in the area bounded by the front compartment 3 of the chamber is eroded to the immersion depth of the wash pipes 2, and as a result a suspended layer of filter material is formed which rises into the front compartment of the receiving chamber. The air released during the flushing of the filtering material, passing through the water in the front compartment, escapes into the atmosphere.

In connection with the continuous pumping of water from the receiving chamber, the flow of water is directed to the drainage pipeline 9. This flow removes contaminants that are washed as a result of mixing the filter material 13, which are then pumped out by the pump 14.

The flow of water supplied to the layer of filter material through perforated water supply tubes 7 should provide such a consistency of filter material in the rear compartment 4 of the receiving chamber, in which small particles of filter material, such as sand (grain size 0.3-1 mm), would fall through the longitudinal holes 8 rotating screws 6, and large ones would rise with spirals of screws into the upper layer of filtering material 13. The air released in compartment 4 also goes into the atmosphere, and water is drained through the drain ny conduit 9.

If for some time with a fixed receiving chamber pulsed rotation of the high frequency of the screws b is carried out with the filter material 13 being fed through the perforated water supply tubes 7 of a certain amount of water, then on the area bounded by the rear compartment 4 of the receiving chamber

filter height with decreasing particle size from top to bottom.

If necessary, simultaneous washing and stacking of the upper layer of filter material with a gradual reduction of the particle size on top of the device operates under the action of the working bodies installed in the front and rear compartments of the receiving chamber.

The layer of filter material is washed in separate strips equal to the width of the receiving chamber, then the device is turned, the exit to the new strip, and the cleaning cycle is repeated.

Claims (3)

1. A device for processing filter loading, comprising a mobile receiving chamber with flushing pipes, equipped with an actuator, characterized in that, in order to distribute the filter material over the height of the filter with decreasing particle size from top to bottom, the receiving chamber is made of two compartments and provided with vertical rotating screws . 2. A device according to claim 1, characterized in that perforated water supply pipes are installed between the screws. 3. The device according to claim 1, characterized in that the axes of the screws are perforated and the spirals of the screws have longitudinal holes. . i--, / / - | TG g. c, h; .. | G.L.Pn - / i - pt: .j9 1. -. : -% -, ic: 3i-ji: fuz.l -o about Rig.Z