SU1373418A1 - Apparatus for purifying liquids from mechanical impurities - Google Patents

Abstract

The invention relates to devices used in a municipal wastewater treatment facility, and allows for improved work efficiency. The device contains an endless belt 1 of elastic and liquid-impermeable material with brushes 2 fixed on its outer surface forming a filtering element, rollers 3 with an increased diameter at the ends, giving tape 1 on its upper part the shape of a groove along which the liquid to be cleaned flows. A cylindrical brush 4 is mounted on the underside of the belt 1 and is rotatably mounted opposite the movement of the belt 1. The vibrator 5 is designed to shake the lower branch of the belt 1. The filtrate enters the receiving tank 6. The support 7 is installed with the possibility of changing its height. Tape 1 is installed with the possibility of moving towards the flow of the liquid being cleaned. Brushes 2 are made in the form of fibers of different lengths. 4 hp f-ly, 2 ill. (L

Description

00

with

four

oo

Cpusi

The invention relates to filtration and can be used in a communal household for the preliminary treatment of wastewater,

The purpose of the invention is to increase work efficiency.

1 shows a device for cleaning liquids from mechanical impurities, a general view; Fig, 2 - top scientific research institute a section of a tape with brushes, side view.

The device contains an endless belt 1 of elastic and liquid-impermeable material with brushes 2 fixed on its outer surface, forming a filtering element, rollers 3 with an increased diameter at the ends, giving the belt 1 the upper portion of the groove along which the liquid to be cleaned flows. A cylindrical brush A is mounted on the underside of the belt 1, mounted rotatably against the movement of the belt 1, the Vibrator 5 is designed to shake the lower branch of mite 1, the filtrate is fed to the receiving tank 6, the Support 7 is installed with the possibility of changing its height. Tape 1 is installed with the possibility of moving towards the flow of the liquid being cleaned. Brushes 2 are made in the form of fibers of different lengths.

The device works as follows.

The cleaning of the liquid entering the tape 1 from mechanical impurities occurs during its flow along the upper half of the tape 1 between the fibers of brushes 2. At the same time, the ends of the rollers 3 lift the edges of the tape 1 to form a groove that prevents the liquid from flowing off the edges of the tape 1 Longer placed hard fibers hold up the largest parts. impurities. Fine particles are trapped in shorter, densely arranged fibers. Tape 1 is continuously moving towards the fluid flow due to the rotation of one or more rollers 3. The drive for rotation can be an electric motor with a gearbox (not shown), the Drive Roller 3 is rationally located at the upper or lower end of the device. Leading can also be both of these videos. They are covered as much as possible by tape 1 and, accordingly,

the adhesion with the belt 1 is greater than that of the intermediate rollers 3. The axle supports of these rollers 3 can serve as supports for the entire installation. When the belt 1 moves to the lower position, the particles of impurities fall off. The filtrate drains into the receiving tank 6. The cylindrical brush A, rotating towards the movement of the belt 1, removes the unstitched sludge from the brushes 2. Brushes A, like the drive rollers 3, can be driven by an electric motor (not shown). movements of the tape 1, it is desirable to use a scheme for simultaneously switching on and off their drives or using a drive common to them. The length and density of the fibers of the brush A are uniform over the entire surface of the tape 1. The length of the fibers must ensure contact with the tape 1, and the density is close to the density of the short fibers of the brush 2, which is determined by the contamination properties of the liquid being cleaned. Instead of a cylindrical brush A or in combination with it, a more intensive removal of sludge can also be achieved by shaking your lower half of the tape with a vibrator 5. Figure 1 shows a vibrator in the form of a rod rotating around an axis perpendicular to it passing through the middle of the rod. To reduce the wear of the tape 1, rollers can be placed at the ends of the rod, creating rolling friction during contact with the tape 1. Similarly to brush A, turning on and off the vibrator 5 should be coordinated with turning on and off the tape 1. Any other vibrator can be used to shake the tape In particular, electromagnetic shock or unstressed (due to the placement of ferromagnetic inclusions in the tape), pneumatic, magnetostrictive, etc.

The change in the slope of the upper half of the belt 1 and the regulation of the supply of the liquid to be purified regulate the filtration rate, determined by the degree and nature of the contamination of the liquid being purified. Such a change in the inclination of the upper half of the belt is conveniently carried out by changing the inclination of the entire installation by changing the height of the support 7 at a fixed position of the upper support. Support height 7

may vary by a screw or gear mechanism, similar to the jack mechanism, by changing the rotation of the eccentric employee or by some other means.

The supply of filtering fluid must be done in such a way that the fluid does not completely overlap the longest fibers. This requirement is especially necessary to comply with the presence in the liquid of impurities with a density lower than the density of the liquid itself. In any case, the degree of purification is higher, the lower the level of the liquid in the chute,

Claims (5)

1. A device for cleaning liquids from mechanical impurities, containing a filtering element in the form of brushes, characterized in that, in order to improve the efficiency of operation, the device is equipped with an endless belt of elastic and liquid-impermeable material, the upper branch of which is made in inclined gutter, wherein the tape is installed with the possibility of moving towards the flow of the cleaned fluid, and the brushes are fixed on the outer surface of the tape. 2. The device according to Claim 1, characterized in that the upper branch of the tape is adapted to change its angle of inclination. 3. The device according to claim 1, characterized in that the brushes are made in the form of fibers of different lengths .. 4. The device according to claims 1-3, characterized in that it is provided with a vibrator placed above the lower branch of the tape. 5. The device according to claims 1-3, characterized in that it is provided with a cylindrical brush mounted under the lower branch of the belt rotatable to move the belt. eHk ujibmp it Mdu Fluids fig 2