RU15669U1 - FILTER PRESS (OPTIONS) - Google Patents

Description

FILTER PRESS (OPTIONS)

The utility model relates to filtering technology, to methods and devices used for dehydration of water suspensions, and can be used in food, chemical, petrochemical and other industries.

A known design of a chamber plate for a filter press, including a drainage base with thrust elements, to which a filter cloth is attached, a suspension feed channel, a filtrate discharge channel. The drainage hole of the plate is formed by a partition, on both sides of which there are blind cavities. The volumes of the blind cavities are interconnected, with the suspension channel and with the filtrate discharge channel (description of the invention to the USSR author's certificate No. 1551395, MPKV 01 D 25/12, publ. 23.03.90, BI№ Ts).

The known device does not provide savings in raw materials and does not increase the yield of nutrients due to the lack of a number of technological operations and modes.

The task, to the solution of which the claimed utility model is aimed, is to create a device that provides saving of raw materials and increases the yield of nutrients.

The technical result is to reduce losses, especially water-soluble nutrients in the filtrate.

The specified technical result according to the first embodiment of the device is achieved by the fact that in a filter press including chamber plates with filter cloth fixed on them and blind recesses made on them on both sides, suspension supply lines and filtrate discharge manifolds.

MPKV01V25 / 164

connected to the volume of the recesses, one part of the collectors is connected with the volume of the recesses on only one side of each thread, but at least one channel, and the other part of the collectors is connected with the volume of the recesses only on the other side of each thread, with at least one channel, not the trunk the suspension supply is made with the possibility of discharge and the possibility of air discharge, and at least one collector of the filtrate outlet is connected to the water and air supply line through the shutoff valves, and collectors connecting the opposite e recesses volumes plates are formed detachably from each other.

According to the second variant, the indicated technical result is achieved by the fact that in the filter press including chamber plates with filter cloth fixed on them, with blind recesses made on them on both sides, suspension supply lines and filtrate removal manifolds are connected to the recess volumes, one part the collectors of each plate are connected with the volumes of one of the recesses, and the other part of the collectors is connected with the volumes of the recesses of adjacent plates with at least one channel, and the suspension supply lines are made with possibly Tew drain and the possibility of air vshuska, and at least one manifold connected to a filtrate outlet manifold to supply water and air through the shut-off valve, with the collectors, the volume of the recesses soedinyayushie nrotivonolozhnye plates are formed detachably from each other.

The claimed device variants are illustrated by drawings, where in FIG. 1 shows the complete filter press; FIG. 2 - plate filter press according to the first embodiment, in FIG. 3 shows a filtering mode; FIG. 4 - washing mode, in FIG. 5 - purge mode, in FIG. 6 - drying mode, in FIG. 7 - washing mode after drying, in FIG. 8 plate filter press according to the second embodiment, in FIG. 9 - filtering mode according to the second embodiment.

The filter press according to the first embodiment consists of chamber plates 1 (Fig. 1 and 2) with filter cloth 2 fixed on them. Blind cavities are made on both sides of the chamber plates 3. Suspension supply lines 4 and filtrate discharge collectors 5 and 6 are respectively connected with the volume of the recesses of the channels 7 on one side of each plate and the channels 8 on the other side of each plate (Fig. 2,3).

According to the second variant, one part of the collectors 5 and 6 of each plate is connected to the volumes of some recesses, and the other part of the collectors to the volumes of the recesses of adjacent plates (Figs. 8 and 9). The minimum number of channels on one side of each plate is at least one. The slurry supply lines 4 are equipped with shutoff valves. At the inlet, a suspension supply valve 9 is installed, and a solution supply valve 10 for regeneration, a valve 11 for draining the liquid when washing the filter, and an air discharge valve 12 for purging are installed on the outflows of the line. The end of the line is equipped with a valve 13 air supply for purging. The collectors of the filter outlet 5 and 6 are connected by pipes to the isolation valves 14, 15 and 16, and are also connected to the air supply lines by a valve 17, a water supply valve 18 for washing the sludge and a water supply valve 19 for washing the filter and discharging the regenerating solution. The filter drain manifolds are provided with a drying gas outlet valve 20 and a residual regenerating solution valve 21. Chamber plates 1 are combined into a single filter press structure using power communication plates 22 and 23. The precipitate 24, separated by a filter cloth 2, is placed in chambers formed by opposing blind cavities 3 of adjacent plates 1.

The filter press operates as follows. In the filtering mode (Fig. 1, 3, 9), valves 9, 14 and 16 are opened, while the suspension is fed directly to line 4, and from it to the chambers formed by chamber plates 1. Solid

the suspension component is retained by the filter cloth 2, and the filtrate passes through channels 7 and 8 to the collectors 5 and 6, and from there through valves 14 and 16 to the filtrate collector (not shown in Fig.).

In the washing mode (Figs. 1, 4), the valves 20 or 14 and 18 are open, and through the valve 18, the washing liquid passes through the manifold 6, channels 8 into the chambers. Then it passes along the shortest path through the thickness of sediment 24 and then through channels 7 and collector 5, then through valve 14 to the filtrate collector (not shown in Fig.). The washing liquid may be directed through valve 20 to prepare a suspension.

In purge mode (Figs. 1, 5), valve 12 and valve 13 are open. The gas pressure through valve 13 propagates along line 4 and removes sediment that accumulates there and residual slurry that, through valve 12, enter the suspension accumulator (in Fig. shown).

In the drying mode (Fig. 1, 6), the valve 17 and the valve 20 open. The gas pressure through the valve 17 acts through the collectors 6 and channels 8 directly on the sediment 24. The gas is released through the valve 20.

After the sediment is drained, the chambers are emptied and the filter rinsing mode is performed, for which valves 18 and 11 are opened. The washing liquid through the collectors 5 and 6, channels 7 and 8 enters the filter press chambers, seeps in countercurrent through the filter cloth 2, washing off the dirt from it, and then through the suspension supply line 4, valve 11 enters the suspension.

In the reherapy mode of the filter cloth, valves 10, 15 and 19 are open, while through the valve 10 a regenerating solution is supplied, which enters the filter press chambers through line 4, washes the fabric 2, dissolving its impurities, and carries them through channels 7 and 8, one way - through the collector 5 through the valve 15 to the valve

19, in a different way - through the collector 6 - to the valve 19. After digging in the regeneration mode, the remnants of the regenerating solution are drained from the filter press through the valve 21.

The inventive utility model allows to reduce the consumption of feedstock used for filtering, especially when cleaning suspensions of water-soluble substances, such as sugar in the sugar industry. The use of such a device in the processing of sugar beets can reduce the loss of sugar in the saturation sediment from 0.15% to 0.02% by weight of beets.

Claims (2)

1. Filter press, including chamber plates with filter cloth fixed on them with blind recesses made on them on both sides, suspension supply lines and filtrate discharge manifolds connected to the recess volumes by channels, characterized in that one part of the collectors is connected to the recess volumes only on one side of the plate with at least one channel, and the other part of the collectors with the volume of the recesses on only the other side of each plate with at least one channel, and suspension supply lines and adapted to drain and the possibility of the air outlet, and at least one filtrate discharge manifold connected to the water supply line and the air through the shut-off valve, wherein the collector connecting opposed recesses volumes plates are formed detachably from each other. 2. Filter press, comprising chamber plates with filter cloth fixed to them with blind recesses made on them on both sides, suspension supply lines and filtrate discharge manifolds connected to the filtrate volumes, connected to the cavity volumes by channels, characterized in that one part the collectors of each plate are connected with the volumes of one of the recesses of the plates, and the other part of the collectors is associated with the volumes of the recesses of the neighboring plates, and the suspension supply lines are made with the possibility of discharge and the possibility of discharge into zduha, and at least one manifold connected to a filtrate outlet manifold supplying air and water through the shut-off valve, wherein the collector connecting opposed recesses volumes plates are formed detachably from each other.