RU1808350C - Liquid cleaning apparatus - Google Patents

Abstract

Use: for cleaning livestock waste, in municipal services for wastewater treatment, for cleaning cutting fluids. Essence: the initial suspension is fed to the filter element 6 and the overlap 9 of the filter material using an annular pipe 16 with slots 17. The liquid fraction enters the cavity 7 and the additional container 8, from where it is discharged using the additional pipe 10, and from the cavity 7 when the slurry (and the hollow crosspiece 11 connecting the cavity 7 to the nozzle 10. The thickened fraction through the nozzle 12 will fall on the base of the rotor 2. The thickened solid fraction is captured by the screw insert 5 and moves up the filter material of the rotor. the solid fraction, reaching the top of rotor 2, is dumped into pocket 13. 2 sludge.

Description

M-

The invention relates to a device for cleaning liquids by filtration and can be used in agriculture for cleaning livestock stocks, in municipal services for water treatment, in the metal industry for cleaning cutting fluids from sludge and fine chips, and also in food and other branches of industry.

The purpose of the invention is to increase productivity while reducing the moisture content of the solid fraction.

In FIG. 1 schematically shows a General view of the device; in FIG. 2 is a section along AA of FIG. 1.

The device comprises a housing 1, in which a filter rotor 2 is installed, made in the form of a paraboloid of revolution. A container 3 is installed inside the rotor, made in the form of a rotation paraboloid and forming a cavity 4 with the rotor 2, and during operation a pressure channel 4. In the cavity 4, a ribbon insert 5 of elastic material is installed. Inside the container 3, a filter element 6 is installed, made in the form of a paraboloid of revolution, and forming a cavity 7 between them to collect the liquid fraction. In the central part of the filter element b, an additional container 8 is installed with an overlap of the filter material 9, which are made in the form of rotation paraboloids. At the base of the additional container 8, an additional nozzle 10 is installed on the axis of the device to drain the liquid fraction from the device. A spigot 11 is connected to the pipe 10 at one end, and the second end is connected to a pipe 12 installed at the base of the container 3 and a filter element 6 for draining the condensed solid fraction into the rotor 2. Hollow Crosspiece 11 is made of four pipes installed to the pipe 10 s bias.

An annular pocket 13 is placed in the upper part of the housing 1. A nozzle 14 is installed on the device axis for supplying the initial Suspension. Additional nozzles 15 for supplying the initial suspension are installed in the upper part of the annular pipe 16. The nozzles 15 are diametrically located on the pipe 16 (the minimum number is two). The pipe 16 below has an annular gap 17 for supplying the initial suspension to the filter element. The rotor 2 in the upper part is equipped with scrapers 18, and the housing 1 has a nozzle 19 for discharging the solid fraction. The shaft 20 pofopa 2 is made hollow and is equipped with a pulley 21. The housing 1 has a cover 22 and

bottom 23. A nozzle 24 is installed in the bottom 23 to discharge the liquid fraction. The tank 3 with a filter element 6 has a lid 25.

The device operates as follows.

The initial suspension is fed to the filter element 6 and the filter cover 9 with a pipe 14 and additional

0 by nozzles 15 by means of an annular pipe 16 with slots 17. When a suspension enters the filter element 6 and the overlap 9, the filtering process begins. Liquid fraction enters the cavity

5 7 and into an additional container 8. From the container 8, the liquid fraction is discharged by means of an additional pipe 10, and from the cavity 7 by means of a hollow crosspiece 11 connecting the cavity 7 with the pipe 10.

0 The thickened solid fraction from the filter element 6 through the pipe 12 enters the base of the rotor 2.

As the rotor 2 rotates, the dehydration process of the thickened solid fraction continues. The thickened solid fraction is captured by the screw insert 5 and moves up the filter material. rotor 2, while the moisture content of the solid fraction is reduced.

0 Having reached the top of rotor 2, the solid fraction is dumped into the pocket 13 by the action of centrifugal force.

Using scrapers 18, the solid fraction moves in pocket 13 to the nozzle

5 19 and is outputted from the device.

The liquid fraction from the housing 1 is discharged by means of a nozzle 24.

The use of the invention in the national economy allows to increase the productivity of the device by 1.5-1.7 times and reduce the moisture content of the solid fraction to 70-75%.

The proposed technical solution, in comparison with the known technical solutions, has the following new properties:

installation in the tank of a filter element, made, for example, in the form of a paraboloid of rotation allows

0 use small centrifugal forces on the filtering curved surface, which increases the productivity of the device;

the installation of an annular pipe in the upper part of the filtering element 5 with slots at the bottom and with diametrically arranged nozzles at the top allows the initial suspension to be supplied into the annular pipe under pressure, and the suspension will flow out of the slots at a high speed, which increases the value of small centrifugal forces and allows self cleaning of the filter surface, i.e. increase device performance:

the installation in the central part of the filtering element of an additional container with an overlap of filter material, and the overlap with the base turned to the supply pipe of the initial suspension allows:

a) create a pressure movement in the cavity between the filter element and the additional tank with an overlap, which improves the filtering conditions for the thickening of the solid fraction;

b) on the convex filter surface of the overlap, a centrifugal force arises when the suspension moves, which tends to squeeze the particles of the solid fraction from the filter surface, which improves the cleaning conditions and increases the performance of the filter surface;

the installation of a filter element in the container, and in its central part of an additional container with an overlap of filter material, makes it possible to more fully use the volume of the device, increase the residence time of the condensed suspension in the device, and thereby reduce the moisture content of the solid fraction,

Claims (1)

SUMMARY OF THE INVENTION A device for cleaning liquids, comprising a housing, a filtering rotor and a container with an opening in the base, made in the form of rotation paraboloids, a screw elastic insert installed in the cavity between them, an annular pocket for the solid fraction, scrapers, a shaft, a drive, input pipes for introducing the initial suspension , removal of liquid and solid fractions, characterized in that, in order to increase productivity while reducing the moisture content of the solid fraction, it is equipped with a filter element that forms a cavity for liquid rations, and equipped with a nozzle at the base for draining the condensed solid fraction into the rotor, made with a hollow cross, an annular tube with slots at the bottom and diametrically arranged additional nozzles from the top, installed in the central part of the filter element with an additional tank with an overlap of filter material turned the base to the supply pipe of the initial suspension, and the base of the additional tank is equipped with an additional pipe to drain the liquid fraction, while the rotor drive shaft full of hollow and equipped with a pulley.