SU1125017A1 - Inertia thickener - Google Patents

Abstract

INERTIAL BULKER, containing a body with a lid, a cylindrical filter element with a tangential inlet, a screw inset and nozzles of the filtrate and condensed fraction discharged inside it, which means that, in order to maintain a stable humidity of the condensed suspension fraction, a rod mounted in the blade with the possibility of axial movement and connected to the lower end of a screw insert made of an elastic material, with the first turn of the insert being equal to the height of the input pa tube and fixed on it. 1 J. S "// J- / in

Description

The invention relates to a filtering technique, specifically to filtering devices for thickening a suspension, and can be used in chemical, mining, food industries, as well as in rural and communal enterprises.

A thickener is known, comprising a body with a lid, a cylindrical screen with a tangential nozzle for supplying the initial suspension; collection of the filtrate nickname and branch pipes for removal of the suspension and CO filtrate.

The disadvantage of the thickener is the low degree of thickening of the suspension due to the spreading of the jet of suspension over the surface of the sieve.

The closest to the invention to the technical essence and the achieved result is a thickener, comprising a housing with a cap, a cylindrical filter element installed inside it with a tangential inlet nozzle, screws 5 insert and nozzles of the filtrate drain and thickened frakhshchi t23 "

A disadvantage of the known devices is the impossibility of adjusting the degree of thickening of the suspension while maintaining a stable moisture content of the thickened suspension.

The purpose of the invention is to maintain a stable humidity of the condensed fraction of the suspension.

The goal is achieved by the fact that the thickener containing the cortex with a cap, a cylindrical filter element installed inside it with a tangential inlet branch, a screw insert and branch pipes of the filtrate and condensed fraction, is provided with a brush that is installed in the cap with the possibility of axial movement connected to the lower end of the screw insert, made of elastic material, with the first turn of the insert equal to the height of the inlet pipe and fixed on it.

FIG. 1 shows a thickener with an oblique view; 2 shows section A-A in FIG. 1 G

The inertial thickener consists of a housing 1c with a lid 2, a cylindrical filter element 3 installed inside the housing, a tangential nozzle 4 is connected to the inner surface of the element

250172

with an outlet 5 for supplying the initial slurry. The filter element 3 through a conical adapter 6 is connected to the pipe 7 of the outlet j of the thickened suspension. Between the housing 1 and the filter element 3 is placed a collection of 8 filtrate with 9 located at the bottom of the outlet 10 of its outlet. A screw insert 11 is installed on the inner surface of the filter element 3, the upper end 12 is fixed at the upper edge of the outlet 5, and the lower end 13 is connected to the rod 15 14 mounted in the shaft 2 with the possibility of axial movement. The first turn of the screw insert 11 is fixed at the cut of the outlet 5.

20 Inertial thickener works as follows.

The original suspension under pressure is supplied through the pipe 4 to the inner surface of the filter element 25 25. When the suspension moves along a helical line on the inner surface of the filter element 3 under the action of centrifugal forces

separation of the liquid phase 30 o solid. The liquid phase passes through the openings of the filter element 3 and enters the collector 8, from where it is discharged through the nozzle 10. The screw insert 11 prevents

jet spreading over the surface

filter element. The thickened T slurry, lowered along the inner surface of the filter element and the conical adapter 6, is retracted through the nozzle 7. The pitch of the screw insert, except for the first turn, can be changed by moving the rod 14 in the axial direction.

Due to the fact that the pitch of the screw insert can be varied depending on the moisture content of the initial suspension, it is possible to achieve such a rate of flow of the suspension through the internal

the surface of the filter element that the thickened slurry will have stable moisture. With an increase in the moisture content of the initial suspension, the pitch of the screw insert is reduced and the high flow velocity of the suspension iodine is maintained along a comparatively larger jet path, which increases the separation efficiency and

therefore, it is possible to preserve the moisture content of the thickened suspension in the outside. When entering "a similar suspension with low humidity, the pitch of the screw insert is increased by 5 ° moisture.

both the speed and efficiency of the separation of the flow of the suspension decreases, which allows to obtain a thickened suspension with a given hundred

FIG. g

Claims (1)

An inertial thickener containing a housing with a lid, a cylindrical filter element inside it with a tangential inlet pipe, a screw insert and pipes for removing the filtrate and condensed fraction, differing in that, in order to maintain stable humidity of the thickened suspension fraction, it is equipped with a rod, mounted in the cover with the possibility of axial movement and connected to the lower end of the screw insert made of elastic material, while the first turn of the insert is equal to the height of the inlet pipe and not movably mounted on it. Fig f SU_ „„ 1125017. > 1125017 i