RU20096U1 - FLOTATION PLANT FOR SEWAGE TREATMENT - Google Patents

Abstract

1. Flotation installation for wastewater treatment, containing a flotator with a flotation chamber and a separation chamber, means for preparing and supplying an air-water mixture to the flotation chamber, a pipe for removing purified water from the separation chamber, a device for removing slurry, characterized in that the flotation chamber is cylindrical with concentrically located outer and inner walls, with an annular collector installed on the bottom of its connected to the means of supplying the air-water mixture and having a nozzle in its lower part for erosion of sedimentary mass. 2. Installation according to claim 1, characterized in that the sludge eliminator is made in the form of a rotating scraper mechanism, the axis of rotation of which is the adjusting screw of the nozzle of the overflow system installation, and the scraper mechanism is driven by a gear motor mounted on the periphery of the flotation chamber with a pulley, due to friction which transfers rotation to the outer ring of the scraper mechanism. 3. Installation according to claim 1, characterized in that the separation chamber selects purified water by means of a pipe extending to the top of the flotation chamber and an overflow pipe inside the pipe, the installation level of which is regulated by a screw.

Description

2001116992

pMlilllllijiiMIIII

IPC 02 F 1/24

Flotation plant for wastewater treatment

The inventive utility model is intended for wastewater treatment after washing cars and storm water from oil products, oils, fats of suspended solids.

The well-known “Flotation plant for wastewater treatment, utility certificate RU 8699 dated 04/14/98 (prototype), the disadvantage of which is high metal consumption and laboriousness, a relatively low level of design.

The proposed utility model of the installation due to the fact that the flotation chamber is made of cylindrical shape with concentrically arranged outer and inner walls, performing the same functions as the prototype, is almost twice as light in mass, more attractive from the point of view of external design, the sludge removal is made in the form of rotation ; scraper mechanism with its rotation drive from the gear motor with a pulley mounted on the upper end of the flotation chamber and due to the friction of the transmitting rotation on the outer ring of the scraper fur anism. Instead of a rectangular shape, the separation chamber also has a cylindrical shape and allows selection

water using a pipe entering the flotation chamber, inside which an overflow pipe is installed. The annular collector of the flotation chamber is made of a polyethylene pipe, in the lower part of which there are nozzles for washing out the sedimentary mass. Water purified by flotation method enters through an overflow system into a filter for after-treatment before collection into a water intake. If there is no need to purify the water on the filter, water is not supplied to the filter.

In FIG. 1 schematically depicts a flotation unit, which contains a flotation chamber 1, a separation chamber 2, a unit for preparing and supplying an air-to-water mixture into a flotation chamber with a saturator 3, pshamoderlitel 4, an overflow tube 5, a sludge tray 6, a filter for water post-treatment 7,.

Claims (3)

1. Flotation installation for wastewater treatment, containing a flotator with a flotation chamber and a separation chamber, means for preparing and supplying an air-water mixture to the flotation chamber, a pipe for removing purified water from the separation chamber, a device for removing slurry, characterized in that the flotation chamber is cylindrical with concentrically located outer and inner walls, with an annular collector installed on the bottom of its connected to the means of supplying the air-water mixture and having a nozzle in its lower part for erosion of sedimentary mass.  2. Installation according to claim 1, characterized in that the sludge eliminator is made in the form of a rotating scraper mechanism, the axis of rotation of which is the adjusting screw of the nozzle of the overflow system installation, and the scraper mechanism is driven by a gear motor mounted on the periphery of the flotation chamber with a pulley, due to friction which transfers rotation to the outer ring of the scraper mechanism. 3. The installation according to claim 1, characterized in that the separation chamber selects purified water using a pipe extending to the top of the flotation chamber and an overflow pipe inside the pipe, the installation level of which is regulated by a screw.