SU1150000A1 - Filter for water purification - Google Patents

Abstract

t. CLEANING FILTER water containing a cylindrical body with a floating granular load, means for supplying and closing the stream of water to be purified, pipelines for washing and discharging the wash water: With connected means for regenerating the charge and pipe for discharging the filtrate. So that, in order to improve the quality of water purification and regeneration of loading, it is equipped with a cylinder with a perforated upper part dividing the body into filtering and collecting filtrate chambers, means for feeding and twisting the flow the treated water is made in a hollow shaft with a wheel in the bottom that is axially installed in the housing, and the means for regenerating the load is made as a waterproof return cone mounted above the shaft and mounted horizontally in an annular n above it (nozzles placed under the shield) for supplying wash water | and an ejector mounted on a shaft between the cone and the shield. 2. The filter according to claim 1, which is connected to the fact that a return water outlet is attached to the upper part of the cylinder ( the first cone at a distance from an inverted cone. 3. Filter by. 1, which is the fact that the holes of the glass in 1 lindra are made prismatic.

Description

The invention relates to devices for the treatment of wastewater from suspended substances by filtration, coagulation and precipitation, and can be used in many industrial fields, in particular in the food industry, for the purification of wastewater from sugar beet factories. A water clarifier is known, comprising a housing, a pipe for introducing reagents, a lower distribution grid, a stabilizer of the expanded layer, an upper drainage grid, a precipitator, a sludge co-receptacle, a pipe for draining the precipitate, a pipeline for draining the precipitate, a pipeline for draining the clarified water from the precipitator, collected Trench IJ. A disadvantage of the known devices is due to the fact that a sudden change in water temperature causes a suspension of the layer of suspended sediment and its removal from the clarifier. The disadvantages of the clarifier include the loss of water during the release of the precipitate. Closest to the invention is a filter for water purification, comprising a cylindrical body with a floating granular load, a nozzle for supplying and swirling the feed water stream, a nozzle for draining the filtrate and a means for regenerating the load, including a tangentially attached nozzle for washing supply, tangentially attached to the body water, a vertically movable grate, and pipelines for supplying and discharging direct water 2J. The disadvantage of this device is that the magnitude of the centrifugal force during tangential water injection is small, so it does not significantly affect the cleaning efficiency. When the flushing water nozzle is located in the indicated device tangentially to the body, the flow is twisted and a tornado is formed. When filing the filter load grains under the flow, it begins to twist them, as a result of which the filter load grains and dirt from them are in the middle of the tornado, because in that short period of time during which the load is carried to the center of the described device, its grains do not have time wash off dirt The purpose of the invention is to improve the quality of water purification and regeneration of the load. The goal is achieved in that the water purification filter, comprising a cylindrical body with a floating granular load, means for supplying and spinning the flow of the water to be purified, pipelines for supplying and discharging the washing water with the means for regenerating the charge connected to them and a pipe for draining the filtrate, is provided a cylinder with a perforated upper part dividing the housing into the filtration chambers and collecting the filtrate; A hollow shaft with an impeller wheel in the bottom is located in the bottom of the body, and the means for regenerating the load is made up of a waterproof return cone mounted above the load and attached to the shaft, horizontally mounted above the shield and placed below the shield nozzles for washing water and an ejector mounted on a shaft between the cone and the shield. In addition, a reverse waterproof truncated cone at a distance from the inverse cone is attached to the top of the cylinder, and the holes in the cylinder are prismatic. FIG. 1 shows the proposed filter section; in fig. 2 - part of the filter, in FIG. 3 - holes in the cylinder. The filter consists of a housing 1, in the center of which there is a vertical hollow shaft 2, in the lower part of which there is a impeller 3. In the lower part of the housing 1 there is a nozzle 4 for discharging sediment. Near the side wall of the housing 1 there is an annular chamber 5 for collecting filtrate i formed by a cylinder 6 with prismatic openings 7. In the lower part of the chamber 5 there is a drainage pipe 8. On the tubular shaft 2 in the middle part there is a cone 9. In the cone 9 there is a pipeline 10 . To the top of the cone 9 summed

3

the flushing water pipe 11 connected by a jumper 12 with the pipe 8. The pipe 11 is equipped with flushing nozzles 13. On the tubular shaft 2 an ejector with slotted holes 14 is installed and a cone-shaped visor 15 is fixed, forming a receiving chamber of fine sediment.

A cone-shaped annular shield 16 is positioned above the cone 9. A nozzle 17 enters the tubular shaft 2 for supplying the reagent.

The filter is loaded with a floating filtering load 18.

The filter works as follows

The original wastewater under pressure through the rotational tube of the tubular shaft 2 enters the housing 1. The wheel. 2, the waste water is driven into rotation. By centrifugal force, a part of suspended solids belongs to the walls of the housing 1 and slides down along the walls of the conical part of the filter. The deposition of coarse suspended solids is facilitated by the insertion of coagulum into the tubular shaft 2 through 1 nozzle 17. The rest of the suspended matter along with the waste water is filtered in the rotating bed by the filter of loading 18. Rotation of the filtering load occurs due to the rotation of the water and the wheel 3, rotation of the tubular shaft 2 and the cone 9. Thus, filtering occurs not only in the vertical direction, but also in the horizontal direction.

The filtered water through the holes 7 enters the annular chamber 5 and through the nozzle 8 is discharged to the needs of the plant. The holes 7 of the cylinder 6 are made in the form of prisms, and their smaller side is in contact with the rotating filter body; 18, the regeneration of the hole: sticking from sticking is done by pressing it into the direction of spreading the holes.

5POPO4

After completion of the centrifugal filtration cycle, the duration of which is set by the actuating mechanism, the rotational speed of the swirling device is reduced to the minimum. At the same time, centrifugal force does not hold water and the filtering material near the side walls of the device, in connection with which, in the upper part of the device, the water filtering charge and impurities drain from the side walls into the cone 9, while the water is at the bottom, and the floating load is at the top of the cone . With this particle floating

15, the load makes a complex movement rotates with the cone 9 and slowly moves with the stream of water poured into the cone to the center of the device, passing under jets of water 20 coming out of the nozzles 13. For a long time under such a shower, each particle is already washed from all sides. As already indicated, the charge particle from the periphery to the center is moved by the flow of water, which is sucked through the holes 14 by means of an ejector mounted in the duct 2. The washed dirt accumulates in the cone 9 and is continuously sucked through the pipeline 10.

At this time, at low speeds in the lower part of the device under the cone 9, water is filtered through the remaining portion of the floating filter box. Then, according to a predetermined program, the revolutions of the tightening means are increased to maximum, and everything is repeated from the beginning.

0 Thus, in the proposed

In this device, the centrifugal force can be very large, which allows 50% of contaminants to be removed before the filter load. Proposed

5, the filter is more efficient than the prototype because it operates continuously.

Claims (3)

1. FILTER FOR PURIFICATION OF WATER, comprising a cylindrical body with a floating granular charge, means for supplying and swirling the flow of purified water, pipelines for supplying and discharging washing water with a means for regenerating the load connected to them and a nozzle for discharge filtrate ftjgi, about Particularly, in order to improve the quality of water purification and regeneration of the charge, it is equipped with a cylinder with a perforated upper part separating the housing into filtration and filtrate collection chambers, and means for feeding and swirling the flow the water to be treated is made in the form of a hollow shaft axially mounted in the housing with a blade wheel in the lower part, and the means for loading regeneration is made in the form of a waterproof reverse cone located above the loading and attached to the shaft, an annular shield mounted horizontally above it, placed under the shield of nozzles for feeding flushing water and an ejector mounted on a shaft between the cone and the shield. 2. The filter according to claim ^ characterized in that a reverse waterproof truncated cone is attached to the upper part of the cylinder at a distance from the inverse cone. 3. The filter according to claim 1, wherein the holes _z in the cylinder are prismatic. SU-cm 1150000>