SU539112A1 - Disc thickener - Google Patents

Description

one

This invention relates to the design of a di-thickener that can be used in pulp and paper or chemical spine to thicken paper pulp or other slurry.

A known disk thickener for dewatering pulp, comprising a housing with nozzles for feeding and discharging thickened pulp and filtrate 1.

The known thickener does not provide a sufficiently high degree of dehydration.

In order to increase the dehydration rate of Kopinyc, the proposed thickener has dense bandages that form together with each (a pair of disks of the chamber to drain the filtrate, and radial partitions between the chambers, which in turn form chambers to drain the condensed mass, and the filtrate is installed in the bottom of the hull and located opposite the corresponding “m chambers.

The drawings show the present thickener.

The proposed thickener contains a horizontal hollow shaft 1, having a perforated surface and divided inside into eight sectors 2, on which are mounted

discs 3 with non-perforated walls covered with filter cloth 4. Each disc pair is assembled so that the filter screens are located on the outer surface of the disc pair. The space between adjacent pairs of disks is divided into eight sectors 5 walls 6 isolated from each other. Sectors and. Open open sides only from the perimeters of the disks and form chambers to drain the condensed mass.

The inner space between the pairs of discs is closed over a large part of the perimeter by sealing bands 7 and forms chambers 8 for draining the filtrate. The bandages are fixedly mounted on the housing and are tightly attached to the ends of the rotating discs.

In the lower part of the thickener, bandages are absent and the bottom 9 adjoins the Surface of the disc ends, in which nozzles 10 are located to drain the condensed mass into the pocket 11, and nozzles 12 are located opposite the chamber 8. The filtrate and flume 13. for showers. The showers are used to wash the filter cloth 4.

The agitator is closed with an airtight casing 15, which has an inlet 16 for supplying the mass, a collection inlet 17 for removing the condensed mass, a collection inlet 18 for discharging the filtrate.

At one end of the shaft, means are installed to supply Compressed air to the internal cavity of the shaft in the form of a head 9, which is tightly attached to the end of the shaft.

The thickener works as follows.

Through the latrubok 16, the mass of the nodes is supplied with pressure UNDER the casing 15 and fills all the space between the pairs of disks in sectors 5 of the chamber. Under the pressure of the liquid mass, the origin filtering through the cloth 4 is dry. The dry mass, settling on the surfaces of the disks, fills sectors 5.

The filtrate released during filtration climbs into the chamber 8 and through the nozzles 12 in the bottom 9 the heel is removed to the chute 13.

When rotating disks of sector 5, filled with condensed mass, are combined with nozzles 10. At the same time, sector 2 in the thickener shaft is aligned with the compressed air hole in gotov 19. 19. The curved mass of sec of sectors 5 is squeezed out with compressed air through 1 pipe 10 into pocket 11 and is removed from the thickener through a collection nozzle 17.

FORUMUA AND 3 ABOUT AND

Disk thickener for dewatering fibrous mother: scoop, including a housing with -pipes for supplying mass and removing condensed mass -and filtrate, perforated hollow shaft with discs fixed on it, having non-perforated walls, means for supplying compressed air and driving, so that, in order to increase the intensity of dehydration, the thickener body has sealing bands, forming together with each pair of camera disks to drain the filtrate, and radial partitions between chambers, forming In its turn, the chambers for removing the condensed mass, stripping the branch pipes for draining the slug1, the masses and the filtrate are installed at the bottom of the case and are located opposite the chambers corresponding to them.

Information source

accepted in examination at examination:

"Filters for

1. Catalog - Reference Moscow, 1965 of liquids, part II,

TsINTIHIMNEFTEMASH (tsrotetil).

. ".

: 1Q

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5-5

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