SU565685A1 - Multi-level capacitor pressure filter - Google Patents

Description

one

The invention is relevant to filtering and can be used in the chemical, food and other industries. ,

A filter press is known that includes horizontally spaced plates with drainage surfaces one above the other, a filter belt zigzagged between the plates, and an elastic chamber l. : However, this filter has a low rinsing efficiency.

Also known is a multi-colored filter- press, comprising horizontally arranged filter plates with drainage surfaces, branch pipes for supplying the initial suspension and removal of filtrate, filter cloth stretched between plates 2J.

This filter press is the closest in technical essence and the achieved result to the proposed one. . The disadvantage of the known filter press is the low efficiency of its washing, due to the fact that the filter chamber is of low height, which does not seem to be right (separation of rapidly filtered; suspensions in the optimal mode with a large terrain of the sediment layer.

The purpose of the present invention is to increase the effectiveness of filtering and washing the precipitate.

For this, between each pair of plates} a filter chamber is installed, made in the form of a shank with a bellow placed i inside it, on which a cloth of filter cloth is fixed.

The drawing shows a many brown capacitive druk-filter .; general form.

Multiple capacitive drum filter consists of upper 1, lower 2 plates with drainage surfaces 3 and 4. Megade with each pair of plates 1 and 2 is installed. A filter chamber made in the form of tsarga 5 with bellows 6 placed inside it. On the end surface of the bellows A napkin of filter cloth 7 is fixed. The filter cloth 8 is looped in such a way that

it goes around each bottom plate 2 from two sides. The base plates 9 serve to close and open the filter. The mechanism for clamping the druk-filter plates is not shown in the drawing ..

The filter chamber 5 is provided with a nozzle for introducing the initial suspension 1O, each lower and upper plate with nozzles for withdrawing the filtrate, respectively, 11 and 12.

Multiple capacitive capacitor | h) works as follows. When the base plates 9 are closed, the filter chamber formed by the core 5, the filter cloth 8 and the filter napkin (the stinging cloth 7 is supplied with the initial suspension through the nipple for introducing the initial suspension 10. Under the pressure of the suspension, the sylph 6 is compressed so that the napkin from the filter cloth 7 lies adjacent to the drainage surface of the top plate 1. The filtrate passes through the filter cloth 8 and the filter cloth napkin 7 and is removed through the filtrate drain patches 11 and 12.

After sharpening the filtration, through a pipe 12, a washing liquid or compressed air is supplied to each top plate 1 and the precipitate is washed or pressed. The pressed sediment is unloaded: from the filter after opening the base plates 9 by transporting it using a filter cloth

and if necessary, pushing the precipitate with a filter cloth.

Thus, due to the installation between each pair of plates of a filter chamber made in the form of a shank with an ilphone placed inside it, on which a cloth of filter cloth is fixed, a high filtration and washing efficiency of the precipitate is achieved.

Claims (2)

1. USSR author's certificate No. 120502, cl. B 01D 25/12, 1958. 2. USSR author's certificate No. 462373, cl. In OIB 25/12, 1973.