SU1128965A1 - Device for separating large particles - Google Patents

Abstract

DEVICE FOR SEPARATION OF LARGE PARTICLES, containing a hydrocyclone with nozzles for supplying initial pulp and draining clarified water and sediment, a nozzle for supplying washing water and a bunker for sediment, due to the fact that, in order to increase the efficiency of separating large particles, the device is equipped with a funnel with a lid in which the outer corrugation is made with partitions and a tray for removal of aero-hydraulic suspension, the funnel is equipped with a cylindrical chamber open at the bottom, installed in the center and communicated with a pipe for withdrawing sediment from a hydrocyclone and a corrugation, and a flushing pipe (L of water is provided with an air vent.

Description

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This invention relates to wastewater treatment and can be used in ferrous metallurgy and other industrial sectors.

A water purification device is known, which consists of a housing with tangential nozzles for supplying treated water, an inner shell for distributing the flow of water and a node for accumulating a sediment in the form of a cone located in the lower part and equipped with means for automatic control of unloading.

However, the known device does not contain elements that allow to dehydrate the sludge. .

A device for separating coarse particles from sewage is known, comprising a hydrocyclone with nozzles for supplying initial pulp and draining clarified water and sludge, a nozzle for supplying wash water and a silo for sludge 2.

However, this device cannot efficiently wash out small particles, since dilution water is introduced along the hydrocyclone axis with zero tangential velocities, as a result, the dilution water is not intensively mixed with the stream containing the separated large, as well as small particles, directed -. shim into the sediment accumulation chamber along the conical wall of the hydrocyclone and having high tangential velocities.

The purpose of the invention is to increase the efficiency of the separation of large particles.

This goal is achieved by the fact that a device for separating large particles, containing a hydrocyclone with nozzles for supplying initial pulp and discharging clarified water and sediment, a nozzle for supplying wash water and a bunker for sludge, is provided with a craps funnel. in which an outer corrugation with peragorodok and a tray for removal of aero-hydraulics suspension is made.

28965. 2, FIG. 1 shows the device, a general view; in fig. 2 is a section A-A in FIG. one.; in fig. 3 shows a section BB in FIG. I; in fig. 4 shows a section 5 B-B in FIG. one.

The device includes a hydrocyclone 1 with a pipe 2 supplying cycneH3HHj pipe 3 for draining clarified water and a pipe 4 for draining sludge, JO hopper 5 for sludge accumulation and

funnel 6. The funnel 6 consists of a body with a cover of 7 s. outer corrugation 8c with partitions 9. The funnel 6 is provided with a cylindrical dispersion chamber 10, open at the bottom, which is open and communicated with the outlet pipe 4 and the corrugation 8. The funnel 6 is equipped with a flushing water pipeline 11 with a mesh Q water distributor 12 and a conical tip 13, and the air inlet port 14. The dispersion chamber 10 is surrounded by a grid 15. The dispersion chamber 10 is made with an opening 16. 25 The funnel is equipped with a drain nozzle 17 and a tray 18 ..,

The device works as follows.

 The suspension is fed into the hydrocyclone I through the nozzle 2. The clarified water without coarse particles goes through the nozzle 3, and some of the suspension with large particles through the patra, side 4 of the sediment is discharged into the funnel 6. Here the slurry head 13 is distributed around the wash line water 11 through which. water is supplied, and air is supplied through nozzle 1.4. The water-air mixture through the mesh distributor 12 enters the dispersion chamber 10. The air, lifting up the top, intensively mixes the wash water with the suspension, diluted the latter: and breaking up the formed aggregates of small particles ... Water containing large and small particles comes from the chamber dispersion 10 into the zone of the abandonment of the industrial funnel 6, where large particles are deposited, which slide along the conical surface of the funnel into the hopper 5. Water with fine particles through the grid 15 and the opening 16 in the upper part of the chamber is dispersed AI 10 enters the corrugation 8,

from where it is discharged into the catchment tray 8 and the drain pipe 17. The presence of the grid 15 creates additional resistance and ensures a uniform rise of water over the entire area of the funnel, as well as a uniform discharge of water along its perimeter. The internal partitions 9 prevent the formation of large-scale turbulence, which may occur when air is stirred along the corrugation 8. The presence of the dispersion chamber 10 makes it possible to reduce the content of fine particles in the sediment several times. The consequence of this sediment, consisting mainly of large particles, can be dehydrated and disposed of.

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Claims (1)

DEVICE FOR SEPARATION OF 'LARGE PARTICLES, containing a hydrocyclone with nozzles for supplying the initial pulp and for removing clarified water and sediment, a nozzle for supplying washing water and a hopper for sediment, with the aim of increasing the efficiency of separation large particles, the device is equipped with a funnel with a lid, in which the outer corrugation is made with partitions and a tray for discharging aerohydro suspension, the funnel is equipped with a cylindrical chamber open at the bottom, installed in the center and connected to the sediment discharge pipe from the hydrocyclone and g offrom, and the wash water pipeline is equipped with an air outlet. 1 1128965 2