SU1701338A1 - Device for discharging industrial sewage from sedimentation tanks - Google Patents

Abstract

The invention relates to a wastewater treatment technique and can be used on industrial effluent debris containing suspended particles. The purpose of the invention is to simplify the design and reduce the cost of discharging effluents. The device consists of a water receiver made in the form of an annular pipe fixed to the float connected to the catchment pipe by means of a siphon. In the upper part of the float, the blades are fixed, mounted in the plan at an angle to the axis. The discharge pipe is installed vertically in the center of the water intake. The use of the invention reduces the costs of industrial effluent discharge and simplifies the construction. 2 Il.

Description

This invention relates to a sewage treatment technique and may find application in industrial waste settling tanks containing suspended particles.

A known installation includes a flat water discharge chamber located on the axis of the body and connected to the recovery pipe by flexible hoses,

However, in a known installation, the floating spillway chamber does not provide for the intake and discharge of the most clarified surface layers of water, since water is simultaneously drained into the chamber and water is also removed from the lower part of the settler with an increased concentration of suspensions. When water is withdrawn from the buffer tank, the bottom layers will be captured with decreasing level, together with some of the most lightened surface layers will remain in the sump, where the currents at the bottom of the buffer tank appear, the possibility of swelling is not excluded.

sediment, in connection with which the concentration of suspended matter increases in water.

The closest in technical essence and the achieved result to the proposed device is a device for discharge of industrial effluent from the backwaters, including a floating water receiver in the form of a tray with an inclined bottom, drain windows and a catchment basin, equipped with a turning mechanism.

However, the known device is difficult to manufacture and maintain, requires energy to rotate the device and, as a result, unreliable during operation.

The purpose of the invention is to simplify the design and reduce the cost of industrial effluent discharge.

This goal is ensured by the fact that in the device for discharge of industrial effluent from the settling tanks, including placed in from (L

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A floating water intake and discharge pipe, the water intake is made in the form of a float with blades in the upper part and a pipe siphon installed on it, the water intake part of the siphon is made in the form of an annular pipe with holes around the periphery of the water intake, and the discharge part is freely installed inside the vertical a discharge pipe, the outlet pipe being freely located in the center of the water intake.

FIG. 1 shows the proposed device, a section: in FIG. 2 - the same, top view.

The device consists of a water intake, made in the form of a float 1 with blades in the upper part 2, installed in the plan at an inclination to the axis of the float, and a pipe siphon 3, the water intake part of which is made in the form of an annular pipe 4, and the waste part 5 is freely installed inside a vertical discharge pipe b, the upper part of which is freely located in the center of the water intake.

The device works as follows.

The device is floating on the surface of the water in the sump with the help of the float 1 and is periodically rotated by the wind on the blades 2. Water from the sump is discharged through a siphon 3 (filled with water before installing the device), flowing through the holes of the water intake part 4. The effluent from the waste part The 5 siphons 3 enter the discharge pipe 6, through which they are led out of the sump. Rotation of the device under the action of wind ensures uniform water intake and a reduction in the effect of boosting the lower more polluted water layers. The free placement of the water discharge coarse in the center of the water intake ensures that the device operates when the water level changes in the sump, as the upper part of the vertical water outlet is installed above the water level in the sump.

The main technical and economic indicators of the operation of the proposed device in comparison with the prototype are summarized in the table.

The use of the proposed invention in comparison with the basic object, for which the prototype is adopted, provides a reduction in the cost of industrial effluent discharge and simplification of the design. The annual economic effect is about 11 thousand rubles.

The application of the invention on an enterprise scale will provide an economic effect in the order of 150 thousand rubles / year.

Claims (1)

Apparatus of the Invention A device for dumping industrial effluent from sumps, including a water intake with a float placed in the sump and a vertical water discharge pipe, characterized in that, in order to simplify the design and reduce the cost of industrial effluent discharge, the water intake is made in the form of an annular pipe fixed to the float with holes the periphery and is connected to the discharge pipe by means of a siphon, while the device is equipped with blades fixed in the upper part of the float, and the discharge pipe is installed vertically in the center ntre water intake. Indicators Suspension content in industrial stocks, mg / l Dump volume per season, thou m Energy costs for the season, kW Energy costs (from the cost of 1 kW / h 0.02 rubles), rubles Device cost, rubles Maintenance costs, rubles. Costs for dumping 1 m of industrial effluent, cop, Annual economic effect, thousand rub. using a prototype 300 1000 480,000 9600 1030 1200 1.1 Using the proposed device 300 1000 580 0.058 11.25 7 G-77G Y7 - g- 7 / - 77 / figure 1