SU1039525A1 - Continuous-action self-cleaning filter - Google Patents

Abstract

SELF-CLEANING CONTINUOUS ACTION FILTER, comprising a housing divided by filter partitions into chambers of initial and clarified liquid, a device for feeding initial liquid, made in the form of a distributing collector communicating with the cutters of the initial liquid of the distributing manifold with the inlet branch pipe mounted on a hollow shaft with an actuator, characterized in that, in order to reduce the energy intensity of the filter by using the pressure of the initial fluid and increasing the filtering uniformity over the entire area of the filter walls, the filter is provided with a swirler E made in the form of a spiral and mounted on both sides of the actuator, which is arranged in the dispensing manifold and is designed as an impeller and inlet manifold mounted at a tangent to the impeller.

Description

The invention relates to filtration, namely to liquid filters intended for the purification of river, industrial and recycled water, industrial effluents.

A filter for cleaning fluid is known, comprising a housing, an axial perforated tube and a filter bag mounted on it, made of elastic porous discs, and a reciprocating mechanism 1.

The disadvantages of this filter are its low performance and the need for frequent flushing of the filter bag.

A self-cleaning continuous filter is known, comprising a housing divided by filter baffles into chambers of the initial and clarified liquid, a device for supplying the initial liquid, made in the form of a distributing collector communicating with the chambers of the initial liquid with the inlet nozzle, and a device installed in the chamber of the clarified liquid along the axis of the housing flushing, mounted on a hollow shaft with a drive 2.

The disadvantage of this filter is high energy consumption, since it is equipped with an electric motor with a gearbox. In addition, it does not provide uniform filtering over the entire area of the filter walls.

The aim of the invention is to reduce the energy intensity of the filter by - using the pressure of the initial liquid and increasing the uniformity of filtration over the entire area of the filter walls.

This goal is achieved by the fact that a self-cleaning continuous filter, comprising a housing divided by filter baffles into chambers of the initial and clarified liquid, a device for supplying the initial liquid, made in the form of a distributing collector with the chambers of the initial liquid of the distributing collector with the inlet pipe, and installed in the clarified chamber fluid along the axis of the housing backwashing device, mounted on the hollow shaft with a drive, equipped with a swirl, made in the form of a spiral, installed on drive side, which is placed in the dispensing manifold and is designed as an impeller and inlet manifold mounted at a tangent to the impeller.

FIG. 1 shows the proposed filter, a general view; on fi1. 2 shows section A-A in FIG. one.

The filter consists of a housing 1, divided into chambers of the original 2 and clarified 3 liquids, a distributing collector 4 and a nozzle 5 for draining the clarified liquid, filtering walls 6, a backwash device 7 connected to a hollow shaft 8. The distributing collector 4 is mounted coaxially to the housing.1 filter and connected by chambers 2 source liquid. In the cavity of the collector 4 is placed the impeller 9, rigidly mounted on the shaft 8, on which on both sides of the impeller installed swirlers 10, made in the form of a helical blade. The inlet pipe 11 is installed on the manifold 4 on a tangent relative to the impeller 9.

The backwash device 7 is made with the possibility of circular rotation

and is in contact with the surface of the filter seals 6. Removal of the slime from the filter is carried out from the shaft 8 of the shaft 8.

The filter works as follows. A stream of contaminated fluid under pressure enters the nozzle 11 and hits the blades of the impeller 9, causing it to rotate with the shaft 8 and the backwash device 7.

Since the feed water flow is tangential to the impeller 9,

when it enters the collector 4, it acquires a rotational motion, and at the exit from the collector it is additionally twisted with the help of a swirl 10. As a result, the liquid in the chambers 2 also acquires a rotational motion, which prevents sedimentation in the sediment and provides; uniform distribution of contaminants over the entire area of the filter walls 6. The filtered liquid flows into

chamber 3 and is discharged through pipe 5. Delayed on filter partitions 6, the suspension is removed from the filter by reverse flow of purified water through a backwash device 7, a hollow shaft 8 connected to the atmosphere through its ends.

Flushing the entire surface of the filter seals 6 is carried out by rotating the backwash device together with the shaft 8.

The invention allows to reduce the energy consumption of the filter, as well as to improve the working conditions of the filter walls, which allows a 25% increase in the time of continuous filter operation.

fg / g.2

Claims (1)

A SELF-CLEANING CONTINUOUS ACTION FILTER, comprising a housing separated by filter baffles into the chambers of the initial and clarified liquids, a device for supplying the initial liquid, made in the form of a distributing manifold communicating with the chambers of the initial liquid, with an inlet nozzle, and a return device installed in the clarified liquid chamber along the axis of the housing flushing mounted on a hollow shaft with a drive, characterized in that, in order to reduce the energy consumption of the filter by using the pressure of the source fluid and sheniya filtration uniformity over the entire area of the filter walls, the filter is provided with a swirler embodied as spiral and mounted on both sides of the actuator, which is arranged in the dispensing manifold and is designed as an impeller and inlet manifold mounted at a tangent to the impeller. Figure 1 A