SU1176910A1 - Sand trap having hydroelevator system to remove sediment - Google Patents

Abstract

1. SANDFLASTING WITH HYDROELEVATOR SYSTEM OF REMOVAL OF SEDIMENT, containing a flow tank with a sand bunker, in which a hydraulic elevator with a discharge pipe for sand removal is installed, characterized in that. that, in order to reduce the energy consumption for further processing of sand removed by reducing the content of impurities in it, the hydraulic elevator is made with two oppositely directed nozzles connected to the pressure pipeline, and is equipped with a cylindrical-conical chamber, the upper conical part of which is connected to the pipeline for sand disposal, as well as a drain pipe for removal of contaminants placed coaxially to the lower cylindrical part of the chamber, and twisting blades located between the drain pipe and the wall chamber, with one nozzle hydraulic elevator directed into the pipeline for the removal of sand, and the other - in the drain pipe. i 2. A sand trap according to claim 1, characterized in that the CJ outlet pipe is provided with a pipe that is brought to the level of the free surface of the liquid. h O5

Description

The invention relates to mechanical purification of water and can be used to purify drinking, industrial and wastewater.

The purpose of the invention is to reduce the energy consumption for the further processing of the sand to be removed by reducing the content of impurities in it.

FIG. 1 shows a sand trap, longitudinal section; in fig. 2 shows section A-A in FIG. one; in fig. 3 - development of the twisting blades.

A sand trap with a hydro-elevator sludge removal system contains a direct-flow tank 1 with a sand bin 2, in which a hydraulic elevator 3 is installed with a discharge pipe 4 for sand removal. The hydraulic elevator is made with two oppositely directed nozzles 5 and 6 connected to the discharge pipe 7 of the process water and provided with a cylindrical conical chamber 8, the upper conical part of which is connected to the pipeline 4 for sand disposal. Inside the lower cylindrical part of the chamber 8 is a coaxially placed drain pipe 9 for removal of organic impurities, connected to the pipeline 10, brought to the level of the free surface of the liquid. Between the drain pipe 9 and the wall of the chamber 8 are located the twisting blades 11. One nozzle 5 of the hydraulic elevator 3 is directed into the pipeline 4 for

sand outlet, and the other nozzle 6 - in the drain pipe 9.

The device works as follows. When the sediment is removed from the sand bunker 2, the technical water is supplied through conduit 4 to the nozzles 5 and 6. Due to the ejection created, the sediment from the sand bunker 2 enters the cylindrical conical chamber 8 through twisting blades 11 and acquires a circular motion. Under the action of centrifugal forces, sand and mechanical impurities move from the axis of the cylindrical conical chamber 8 to its walls along a spiral trajectory into the upper conical part and are ejected by the flow of process water leaving the nozzle 5 into the pipeline 4

for sand removal. The organic contaminants, as lighter ones, are concentrated at the axis of the cylindrical conical chamber 8 and are ejected by a flow of process water coming out of the nozzle 6 into the drain fitting 9 and are removed through conduit 10 to the level of the free surface of the liquid in the sand trap.

11 11

Claims (2)

1. SAND GOLD WITH A HYDRAULIC ELEMENTATION SYSTEM FOR SEDIMENTS, containing a direct-flow tank with a sand hopper in which a hydraulic elevator with a pressure pipe for removing sand is installed, characterized in that, in order to reduce energy consumption for further processing of the removed sand by reducing the content of impurities in it, a hydraulic elevator is made with two oppositely directed nozzles connected to the pressure pipe, and is equipped with a cylinder-conical chamber, the upper conical part of which is connected to the pipe for I drain the sand, as well as a drain pipe for removing dirt, placed coaxially with the lower cylindrical part of the chamber, and twisting blades located between the drain pipe and the wall of the chamber, while one nozzle of the hydraulic elevator is directed into the pipeline for removing sand, and the other into the drain pipe. 2. Sand trap according to π. 1, characterized in that the drain pipe is provided with a pipeline brought to the level of the free surface of the liquid. from h Ci with ©> Fig!