SU130036A1 - Continuous filter - Google Patents

Description

Continuous filters for filtering suspensions, such as squeezed juices in sugar production, are known in the form of rotating hollow disks mounted on a hollow shaft, divided into filter-covered segments, with filtrate withdrawn through the hollow shaft. The discs are enclosed in a closed chamber, i-. the lower part of which is located the pups to remove the sediment.

The proposed filter is better than the known ones.

The essence of the invention is that, in order to alternately regenerate the filter cloth of the segments and apply a filter layer on it, for example, from kieselguhr, in the lower part of the chamber, above and between the discs, the output and supply chambers with frames corresponding to the shape of the segments are installed, and the width between adjacent disks.

In order to prevent the tearing of the filter cloth and the regeneration by blowing the walls of the chambers adjacent to the regenerated filter cloth, it is made of a rare mesh that does not prevent the passage of sediment into the outlet chambers.

FIG. 1 shows a longitudinal section of the filter; in fig. 2 is a section along A-A in FIG. one.

In the closed chamber 1 on the hollow shaft 2, hollow discs 3 rotate, divided into separate filter-covered segments, connected to pipes 4 for draining the filtrate.

In the lower part of the chamber, inlet chambers 5 and outlet chambers 6 are installed, the frames (contour) of which correspond to the shape of the disk segments, and the width is equal to the distance between adjacent disks 3.

The walls of the outlet chambers 6, to which the regenerated filter cloth adjoins, are made of a rare grid 7, which does not interfere with the product No. 130036 2

sedimentation and serving as a support for the filter cloth when the segment is blown with air supplied through the nozzle 8.

The hollow shaft 2 rotates periodically in increments corresponding to one segment. Unfiltered juice is fed into the chamber / through the nozzle, the filtrate passes into the inside of the segment and is discharged through the juice pipes 4 to the control box 9, and the sediment remains on the outer surface of the segment.

In the lower part of the chamber /, when the segment approaches the outlet chambers 6 and becomes in between, an air (under pressure) is fed through the nozzle 8, which through the window 10 in the chamber / discharges sediment into the auger //.

After that, the segment goes to the inlet chambers 5, into which a suspension is deposited on the fabric through the pipes 12.

Thus, ecl ect is a continuous process of sequentially applying a filter layer to a regular segment, filtering and then regenerating.

The subject matter of the invention

Claims (2)

1. A continuous filter for filtering slurries, such as bottled juices in the sugar industry, made as rotating hollow discs placed in a closed chamber on a hollow shaft, divided into filter-covered segments with filtrate output through the hollow shaft, and a screw to remove sludge, characterized in that, in order to alternately regenerate the filter cloth of the segments and apply a filter layer to it, for example, from kieselguhr, in the lower part of the chamber above the jaw between the disks are installed d conductive chamber frame segments which correspond to the shape and the width - the distance between adjacent disks. 2. The form of the discharge chambers in the filter according to claim 1, characterized in that, in order to prevent rupture of the filter cloth during regeneration by blasting, the walls of the chambers adjoined by the regenerated filter cloth are made of a rare mesh that does not interfere with the passage of sediment into the exit chambers .