SU142625A1 - Continuously operating filter sump - Google Patents

Description

Continuously operating pulsating settling filters are known, made in the form of a vertical cylinder with a conical bottom, equipped with a central tube for feeding the suspension from top to bottom, a nozzle for removing sediment from the conical part and a control filter of the liquid phase in the upper part of the cylinder. However, such filters are not sufficiently productive.

In the described filter sump for use as a filtering material of solid mass of the filtered suspension with the use of vibration and hydraulic shocks to separate the suspension parts from the suspension, seal and remove sediment under the central pipe a second bottom is installed, the cavity formed by it is overlapped with a rubber ring-valve and below it is attached in the same way as the main bottom to the filtering device under the action of water hammering. : A mesh disk with a diameter twice as small as the settler diameter is installed under the central tube, and above it there is a perforated (flat or composite of a series of sections) disc equipped with hollow conical floating valves for collecting and removing crowded particles (sediment) from the cylindrical part into the conical and vertical tubes for the passage of the filtered suspension.

Filtering under the action of water hammering the device can be made in the form of sieve cylinders and filter fabric between them, attached to the second bottom. The conical casing surrounding them is connected to the main bottom, covered with one common bush below, equipped with a valve for discharging compacted sludge.

A transfer board in the valve guides is attached to this bushing, used to create hydraulic shocks.

No. 142625-2 When used in the described filter of a continuous disk, the last ripple is ensured by the fact that a curved iodine is attached to the disk at one end with a 90 ° angle bar, the other end of which passes through the eccentric drive. t electric motor. In the case of using a sectioned disc-its ripple is due to the fact that each section is connected to. An irretkom, one end of which is placed in a sleeve by a spring installed in the central tube, and the other end passing through the membrane, receives movement through an extractive drive from an electric motor.

FIG. 1 shows a schematically described filter sump; on fit. 2-node I, in FIG. 3 is a view along arrow A in FIG. one.

A continuously operating filter sump consists of a vertical cylindrical tank / with a conical bottom 2, a central tube 3, a second bottom 4 and a mesh disk 5 installed under the tube 3, a rubber valve ring 6 that overlaps the cavity 7 formed by the bottom 2 w. 4, the nozzle 8 for removing the sediment filtering under the action of hydraulic shocks of the device 9, located in the nozzle 8, of a perforated disk (solid or sectional) 10 and a control frame filter 11 located in the upper part of the tank.

The suspension to be filtered enters through the pipe 12 into the sump filter. When leaving the central tube 3, the slurry jet is distributed by the cone 13 over the disc 5, knocks off its previously deposited sediment, which falls through the disc holes or falls through the edge of the disc into the compaction zone. Having pushed off from disk 5, the suspension rises up, and its trickles along the Mepie passage through the cylindrical tubes 14 of the disk 10, having a small diameter, gradually change the laminar character to turbulent. As a result, a layer of a suspension solid phase is formed above the disk 10 and has filtering properties. The precipitate is collected on the dogs 15 of the hollow conical valves 16, which cover the openings 17 in the disk 10. Under the influence of the oscillations of the disk 10, the sediment gradually condenses. As the load on the valves 16 increases, they fall down, tilt in one direction or the other, and the sediment slides off their polished bottoms 15 and falls into the compacted zone. Valves 16, with which the guides 18 do not allow to turn over, again float and block the openings / 7. The filtered suspension rises up, passes through the control filter // and is discharged from the settling tank through the nozzles 19. The compacted sediment is collected in the internal sieve cylinder 26, from which it is periodically discharged while in the corresponding position of the board 21 connected to the sleeve 22 and moved in the guides the valve of the device 9 by the electric motor 23. At the moment when the board 21 cuts off the column of the unloading sludge, a hydraulic shock is created, leading to additional compaction of the sludge in the device 9, led by filtration of the liquid phase 1 through a sieve cylinder 24 and filter fabric 25 between cylinders 20 and 24 passes into cavity 7, the air is expelled from the latter through ring-valve 6. As the amount of liquid in cavity 7 increases, the liquid phase enters in the filtration zone of the settling tank.

The drive 10 in the case of the latter implementation is spalted from the electric motor 26, which oscillates a bar 27 attached to the disk 10, passed through the membrane 28. Several bars are provided for the sectional disk 10, the number of which is equal to

the number of sections of the disk 10. Each bar is passed from the side of the electric motor through the membrane, and on the other side the end of the bar enters the sleeve 29 with a spring placed in the central tube 3.

The change of the control filter P is made after the liquid level in the tank / is slightly reduced. To this end, the valves 30 are opened at the pipes 31 connected to the branch ends of the 32 pipes 19. After changing the filter 11, the valves 30 are closed again, the level of the filtered suspension rises, and it is drained again only through the pipes 49.

Subject invention

Claims (4)

1. A continuously operating pulsating filter sump, made in the form of a vertical cylinder with a conical bottom, equipped with a central tube for supplying the suspension from top to bottom, a nozzle for removing sediment from the conical part and a control liquid phase filter in the upper part of the cylinder, characterized in that use as a filter material of the solid mass of the filtered suspension using vibration and hydraulic shocks to separate the compacted compaction particles from the suspension and remove sediment in it under the central pipe has a second bottom, a cavity formed by which is overlapped with a rubber ring-valve on top, and below it is attached in the same way as the main bottom to the filtering device under the action of water hammering device; a mesh disk with a diameter twice as large is also installed under the central pipe the sump, and above it a perforated (solid or composite of a number of sections) disk equipped with hollow conical floating valves for collecting and removing solid particles (sediment) from the cylindrical part to the conical vertical tubes for the passage of filtered slurry. 2. A filter settler according to claim 1, characterized in that the filtering device under the action of water hammering is made in the form of a series of perforated cylinders and filter fabric between them attached to the second bottom; the conical casing surrounding them is attached to the main bottom, lower covered by a single common bushing provided with a valve for discharging compacted sludge. 3. Filter settler according to paragraphs. 1 and 2, characterized in that, in order to create a water hammer, a mixing board is attached to the sleeve in a valve guide. 4. The sump filter according to claim 1, that is, so that in case of using a flat disk, in order to ensure its pulsation, a rod bent at an angle of 90 ° is attached to it with one end, the other end which, passed through the membrane, receives movement through the eccentric drive from the electric motor; in the case of using a composite sectional disc, in order to ensure its pulsation, each section is attached to a rod, one end of which is placed in a sleeve with a spring installed in the central tube, and the other end passed through the diaphragm receives movement through the eccentric drive from the electric motor. - 3 - 142625 Figz