SU1680262A1 - Radial filter for cleaning water - Google Patents

Description

The invention relates to radial filters for water treatment and improves the performance, the quality of water treatment and regeneration. The filter consists of a housing 1. filtering chamber 4 with a granular load, chamber 5 for the source water and a drainage system 17 installed along the axis of the chamber 4. The lateral surface of the chamber is made in a vertical frame-rod half-rings 13. covered with supporting and filtering nets. The camera is equipped with a vibrator. 2 Il.

eleven

1680262 A1

1

3

1680262

four

The invention relates to devices intended for the purification of water, namely to slowly filtering it through a granular nozzle with the formation of a filtering film on its surface, and can be used to clean small amounts of natural water in the drinking water supply systems.

The purpose of the invention is to improve the performance, water quality and regeneration.

FIG. 1 shows a filter, a longitudinal section; in fig. 2 ”- section A-A in FIG.

one.

The filter consists of a detachable cylindrical body 1 with a conical bottom 2, a flat lid 3, coaxially installed in it with a filter chamber 4. source water chamber 5, vibrator 6, shock absorbers 7, supplying 8 and 9 and outlet 10 and 11 water nozzles.

The filtering chamber 4 is provided with end impermeable flanges 12 and its side surface is made in the form of vertical frame-rod half-rings 13 having stiffening ribs and fastened by a stiffness belt 14, filtering mesh 15, covering the skeleton thus formed, and supporting mesh 16 with large cells. The axis of the chamber 4 is installed drainage system 17 for removal of the filtrate. The filter also includes a lower drainage system 18 formed by the lower flange 12 and the false bottom 19, in which the drainage slotted caps 20 are reinforced. The space between the support frame and the drainage system 17 is filled with a granular filter nozzle 21 with a grain size of 0.25-0.3 mm. The filtering chamber 4 rests on the shock absorbers mounted on the stand 22, and the central hollow rod 23 is connected to the vibrator base plate 24 mounted on the filter cover 3 on the spring shock absorbers 25. The sealing of the passages of the hollow yagi 23 through the covers 3 is made using bellows 26.

Slow radial filter works as follows.

The source water through the pipe 8 under pressure enters the inlet chamber 5. passes the filter nozzle 21, drainage

the system 17, the hollow rod 23 and the outlet pipe 10 is retracted into the tank. Water, passing at a speed of 0.3-0.4 m / h through the nozzle 21, the filtering surface of which is increased due to the specified execution of the side surface of the chamber, leaves on its surface a suspension in the first layer (15 mm), forming a so-called filter film. When the increase in head loss reaches approximately 2-2.5 m, the filter chamber 4 is displayed on the regeneration of the nozzle, which is the most important point in operation.

Regeneration of the granular nozzle 21 is as follows.

Wash water through pipe 9 under pressure is fed into the drainage system 17 and 18. Simultaneously with the supply of wash water, the vibrator 6 is turned on. The wash water, passing upwards and radially from the center to the periphery through the nozzle 21, weighs it. Under the action of vibration oscillations of the filtering chamber 4, the radial flow of water from the enclosing grid 15 and the first layer of the nozzle removes the filter film, and the particles adhering to the nozzle 21 under the action of vibration and collisions between the grains nozzles 21 are rubbed off and with the wash water through the grids 15 and 16 are diverted chamber 5 of the source water, from which it is discharged through the nozzle 11. The duration of regeneration is 4-6 minutes.

Claims (1)

Claim A radial filter for water purification, comprising a housing with a lid and a bottom, a cylindrical filter chamber filled with a granular load located coaxially in the housing, a nozzle for supplying raw water attached to the housing, a drainage pipe for draining the filtrate installed along the chamber axis, and removal of wash water, about tl, considering that, in order to increase productivity, water purification quality and regeneration, the filter chamber is provided with end-tight impermeable flanges and its side surface filled in the form of vertical frame-rod half-rings covered with supporting and filtering nets, while the camera has shock absorbers connected to vibropri. by the water. 55 1680262 Aa