SU1370081A1 - Filter for purifying industrial waste water - Google Patents

Abstract

The invention relates to the field of cleaning industrial and rainwater effluents containing petroleum products and suspended solids, and improves the filter performance and the degree of purification due to self-cleaning of the filtering surface and the elimination of stagnant zones. The industrial waste filter includes a housing 1 with inlet and outlet connections 8 and 9, removable cable 11. The mesh drum 2 is mounted on a perforated shaft 3 with flanges 5 and 6 and a filter load 4. On the fluid supply side there is a rotary wheel 7 with pockets rigidly mounted on a perforated shaft, mounted in the axles 13 and 14 so as to be rotatable. 4 il.

Description

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The invention relates to the treatment of wastewater, in particular to the treatment of industrial rainwater containing, for example, petroleum products before discharge into the sewage system, and can be used in the relevant industries,

The purpose of the invention is to increase the filter capacity and the degree of wastewater treatment by self-cleaning the filter surface and eliminating stagnant zones.

FIG. 1 shows a filter, a longitudinal cut; in fig. 2 shows section A-A in FIG. one; in fig. 3 - filter unit on one frame; in fig. 4 - line-up of six filters in one unit with pipelines.

The filter consists of a housing 1, inside which a mesh drum 2 is installed. The drum 2 is mounted on a perforated shaft 3. The space between the drum mesh and the shaft is filled with an adsorbing load 4 (Cypr). A flange 5 with sector openings is fixed on the shaft 3 and a flange 6 is also mounted loosely with sector openings w. The rotor wheel 7 is fixed rigidly on the shaft 3. On the casing 1 there are nozzles 8-10 supply, drain and for cleaning, respectively, and a cover 11. A gasket 12 is placed between the rotor wheel and the casing. Parts 2 - 7 form a cartridge that rotates in pins 13 and 14.

Several filters arranged in a single unit are installed on the frame 15, on which the inlet and outlet pipes are fastened; 6 and 17 The outlet pipe 17 has open funnels 18. The filters are interconnected by pipelines 19-25, on which shut-off valves. The combination of two cylindrical surfaces in the filter allows a significant increase in the initial filtering cjioii. The nerve surface - the circumference of the metal mesh 2, the second - the circumference of the perforated rod 3. The first surface is much larger than the second and filtration goes from a larger surface to a smaller one. Such a filter design, in comparison with a slider type filter, where the input and output layers are equal to each other, extends the filter operation time between current repairs and technical 12

These inspections, including the replacement of adsorbent material, since the peripheral surface of the filter layer exceeds the surface of the layer adjacent to the perforated rod.

The device works as follows.

The adsorbent material is placed in a movable (removable) cartridge, for which the cover 11 is removed and the material is loaded through the sector openings of the flanges 5 and 6. Then the flange 6 rotates and overlaps the sector opening

The effluent under pressure enters the pipe 16, from which pipe 19 enters the nozzle 8. From the nozzle 8, the drains flow into the pockets of the rotor wheel 7. As they are filled, the rotor wheel rotates with the cartridge, cleaning the outer filter surface, due to friction between filtering surface and water environment.

A hollow perforated shaft 3 is installed in housing 1. The drains from the pockets of the rotor wheel 7 enter the filter housing and then into the cavity between the drum and the perforated shaft, which is filled with adsorbing load 4. The drains are filtered and enter through the perforated shaft into its internal cavity . One end of the shaft is plugged, and the other has a drain hole, through which the filtered drains through the pipe 9 and the pipeline 20 flow into the next filter in the case of high initial concentrations of oil products and suspended substances. } 1l so that the drains do not pass the filtration and do not go into the gap between the rotor wheel and the filter housing, the gap is selected and sealed with a gasket 12. The filter is monitored visually by breaking the jet between the funnel 18 and the pipe 23. similar cleaning is carried out in the following filter, which is installed in series behind the first pipe and connected to it. After the funnel 18, the effluent through conduit 17 is directed to a drain. At low input concentration, the first (upper) filters work, at high - upper and lower filters. The arrangement of the upper and lower filters on the ONE11 frame allows to obtain

reserve performance and replace the filter material of any of the filters, do not stop the operation of other filters.

The use of a filter improves the degree of purification and the use of purified effluents in the circulating system of the plant — the concentration of oil products after purification decreases from 12 mg / l to 2.6 mg / l, i.e. is 20% of the initial concentration, and the concentration of suspended solids is reduced by 70% from 203 to 62.7 mg / l.

While maintaining the indicated concentrations, the service life of the filtering surface increases approximately by 1.5-2 times.

The proposed filter increases the efficiency of use of the filtering surface by eliminating stagnant zones.

Formula inventions

A filter for industrial wastewater treatment, comprising a housing with a Koii roof, a mesh drum with flanges and a loading adsorbent on the nep (}. Shaft, supply and drainage pipes, and

Q so that, in order to improve the filter performance and the degree of cleaning due to the self-cleaning of the filtering surface and the elimination of stagnant zones, it is equipped with a rotary wheel with pockets fixed rigidly on the shaft and trunnions perforated shaft on the inlet side. with drum and rotary wheel mounted in trunnions

Q is rotatable, and in the flanges of the drum from the side of the housing cover, the pie holes are blocked.

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Claims (1)

Claim A filter for industrial wastewater treatment, comprising a housing with a lid, a mesh drum with flanges and an adsorbent loading on a perforated shaft, inlet and outlet pipes, and a 10 in that, in order to improve the filter performance and the degree of cleaning due to self-cleaning of the filter surface and elimination of stagnant zones, it is equipped with a rotor wheel with pockets fixed rigidly on the shaft, th axles located in the housing on the supply pipe side, and the perforated shaft with the drum and the rotor wheel are mounted in pins 2Q with the possibility of rotation, and overlapping sector openings are made in the flanges of the drum from the side of the housing cover. ~ ZZZZZZZZ2ZZZZZZZZ ^ ZZZZZZZZZZ2ZZ2ZZ21 \ _ ------ yes - -iS ~ C5 <5 b '' s 7 _n - <►- -H> - 4> - -f- 4> HHHHHHHH -ψ CH 4> - 4> - <> - <> ZSI NZL: ESZ ESIΕΣΣΕ ESZ ESX E55SM; 1 - λ - T \\\\\\\\ ' ^s flew about ^ 2222222222222222222 2 222222 ^ 27277 ^ 1 ^ 2 ^ 7777 r ° FIG. 1 Aa I Submission of a few valuable 1 FIG. 2 FIG. 3 I 37008 I