SU929572A2 - Apparatus for industrial purification effluents - Google Patents

Description

(5) DEVICE FOR CLEANING INDUSTRIAL WASTE

one

The invention relates to a sewage treatment plant for purifying water from floating impurities with sedimentation of solid particles in the recycled water supply of canning production autoclaves.

According to the main auth. No. 812729 a device for industrial wastewater treatment is known, comprising a cylindrical chamber divided into chambers, pre-aeration units, supplying raw water and discharging separate phases, installed outside the body, along its component, a cascade of overflow trays made in the form of semi-cylindrical shells, a pipeline for discharge a draft placed along the axis of the cascade, having windows with controllable shutters, and vertical partition walls placed in trays spaced from each other and tray 1.

However, when such a device is in operation, a strong spray occurs.

the water being cleaned flows from the upper trays to the lower ones due to the collision of water flows moving along the overflow surfaces of the trays near the center of their bottom. At the same time, sprays containing floatable substances fall into the lower trays, an intermediate mine. In addition, floatable substances and floating impurities flow in a cascade and enter 10 into the collection of clean water. All this greatly reduces the quality of water purification.

The purpose of the invention is to increase the quality of water purification.

To achieve the goal, each tray is provided with a plate with a conical shell around the plate placed in the center of its bottom, and the sludge discharge pipeline is made with windows placed in each tray at the level of liquid in it.

device; in fig. 2 - section A-A on. FIG. one .

A device for industrial wastewater treatment includes a housing 1 separated from a chamber: pressure 2, flotation 3 and sludge t, a preliminary aeration unit 5 located above it 5. a branch pipe 6 of the supply of purified water. Around the casing 1, trays 7 are located and fastened on it, which are made in the form of a cascade of containers with overflow surfaces whose cross sections are formed by a part of a circle, for example, by a semi-circle. The first.R of containers is located directly under the drain of the pre-aeration unit. Each tray is provided with a plate 8 located in the center of its bottom and a conical shell 9 placed around plate 8. The containers are combined on the sides of the casing with vertical pipes to discharge sediment and suspensions.

The discharge pipe 10 is made with windows 115 placed in each tray 7 at the level of liquid in it, and windows 12, which are located in the drive part of the trays 7 and are equipped with flaps 13, controlled by means of levers 14 and 15.

Separating dividers 1b are installed on both sides of the pipes in the trays 7, between which and the bottom of the container there is a gap. The tanks of the lower russa of the cascade of trays 7 are connected by pipeline 17 to intermediate tank 18, which in turn, through pump T9 and pipeline 20, is connected to further purification chambers located in housing 1. Pipe 21 is provided for draining purified water from the installation.

The device works as follows.

The water to be cleaned and cooled is supplied through the nozzle 6 to the preliminary aeration unit 5 and the inlets enters the upper russia of the cascade of trays 7 between the dividing walls 16. In the trays 7 between their bottom and the dividing walls 16 there is a separation

MY water. Heavy particles are deposited in the bottom part of the tray, and the floatable and floating impurities accumulate in its upper part between the partition walls 16 and are discharged through the windows 11 into the discharge pipe 10.

The water being cleaned flows over the overflow surface of the tray 7. Goes around the plate 8 and through the cone shell 9 falls into the underlying Russian cascade of the trays 7 between the separate partitions 16.

In this case, the separation and alignment of the jets of the two opposite trays occurs, which prevents the splashing of the treated water with sediments and suspensions.

The purified water entering the bottom of the tanks of the cascade is pumped by pump 19 into the pressure chamber 2 and into the flotation chamber 3 for final purification. And then through pipe 21 it is led out of the cleaning device.

After a certain time of the device during the accumulation of siege; In the trays 7, they are drained through a discharge pipeline 10. For this, by moving the gigs 15 by means of levers, they open the flaps 13 and together with the remnants of the treated water in the tray 7 the sediment and suspensions are drained into the sewer.

invention formula

A device for the treatment of industrial wastewater by auth.St. No. 812729, characterized in that, in order to improve the quality of water purification, each tray is provided with a plate and a koius shell placed around the center of its bottom and placed around the plate, and the sludge discharge pipeline is provided with windows placed in each tray at the level of liquid in it .

Sources of information taken into account in the examination.

1. USSR author's certificate No. 812729, cl. C 02 C 5/00, 1979Fig .2

Claims (1)

Claim A device for treating industrial wastewater according to ed. If 812729, characterized in that, in order to improve the quality of cleaning water, each tray is equipped with a plate located in the center of its bottom and a coyus shell located around the plate, and the sludge discharge pipe is made with windows placed in each tray at the liquid level in it .