SU1148649A1 - Installation for cleaning washing water of paint chamber - Google Patents

Abstract

A DEVICE FOR CLEANING WASHING WATER OF THE PAINTING CAMERA, containing a hydraulic filter, a settling tank, a receiving chamber and a collection tank, interconnected, a tray under the hydraulic filter connected to the collection and distribution of polluted water, connected to a collection unit and a collecting tank, and a pump unit with an intake piping, which is due to the fact that, in order to increase the reliability of the painting chamber and to improve the operating conditions, the settling tank is made with walls inclined to its center and attached to its price the pipe is equipped with a pump to remove sediment connected to it by a pipe immersed at one end in Pri Moc and a cellular lattice separating the settling bath from its reservoir, while the prefabricated mock is supplied with a transport perforated basket with a cellular lattice and connected to the receiving the chamber is an inclined overflow pipe, the cavities of the tray and the settling bath being separated not reaching the top (L of the bath by the side wall of the tray, in the lower part of which a hole is made, and the settling bath is connected to the receiving chamber by a channel under lottszh.

Description

The invention relates to equipment for spray booths, in particular, industrial water purification devices, and can be used in various industries for cleaning industrial waste water from painting. A device for cleaning the industrial water of the spray booth is known, which contains a bath and a device for collecting and removing paint waste, made in the form of an endless chain with scrapers to remove floating and sunken waste paint L. The disadvantages of this device are that the effectiveness of water purification from paint particles is low, because during the time of work of endless chains with scrapers, the settled paint particles rise and contaminate the whole mixture and increased fire hazard due to the fact that. Drivers are in the area of hazardous paint solvents. The closest to the invention to the technical essence and the achieved result is a device for cleaning wash water of spray paint, containing a hydrofilter sludge bath, a receiving chamber and a collecting tank connected between them, a tray located under the hydraulic filter for collecting and distributing polluted water, connected with the collection primom and with the settling bath, and the pumping unit with the intake pipe 2. In the known device, the sink tank does not have any devices for removing paint waste from it, which predetermines cleaning it manually or partly a salvo discharge of the entire volume of water, as a result of which the camera is difficult to operate. In addition, the design of the known device reduces the reliability of the painting chamber because of the location of the tray above the bathtub axis and the installation of a water flow regulator in its bottom opening through which the passage of sunken waste paint is difficult and which requires periodic cleaning. Due to the installation of filters in the sediment bath, the use of the spray booth is complicated. The filters have a small surface and are quickly clogged with paint waste, therefore, it is necessary to periodically clean or replace them with new ones. The purpose of the invention is to increase the reliability of the painting chamber and improve operating conditions. This goal is achieved by the fact that in the device for cleaning the wash water of the spray booth, containing a hydraulic drip pan, a settling tank, a receiving chamber and a collection tank, connected to each other, a tray located under the hydraulic filter for collecting and distributing contaminated water, the settling bath and the pumping installation with the intake pipeline, the settling bath is made with walls inclined to its center and located at its center and equipped with a pump for removing the sediment connected to it. at one end in the cell, and a cellular grid separating the settling bath from its base, while the collection cell is equipped with a transport perforated basket with a cellular grid and is connected to the receiving chamber by an inclined overflow pipe, the cavity of the tray and the settling bath are not separated the side wall of the tray to the top of the bath, in the lower part of which a hole is made, and the settling bath is connected to the receiving chamber by a channel located under the tray. FIG. 1 schematically shows the device, the cross section in the center; in fig. 2 is the same; the view of cxyxy in FIG. 3 shows section A-A in FIG. FIG. 4 is a section BB in FIG. 2; FIG. 5 is a section B-B in FIG. 2. A device for cleaning the wash water of the spray booth includes a hydraulic tank 1, a settling bath 2, a receiving chamber 3 and a collecting tank with a wet tank 4 connected to each other, a tray 5 located under the hydraulic filter 1 for collecting and distributing contaminated water, which is connected to the collecting tank 4 and a settling tank 2 and a pumping unit (not shown) with a suction pipe 6. The settling tank 2 is made with walls 7 inclined to its center and with around 8 its center and is equipped with a pump (not shown) to remove sediment connected to it pipe 9, immersed at one end in at ICO 8, and a cellular lattice 10,

separating the slop bath 2 from it. at the base 8. The assembly at the base 4 is equipped with a transport perforated basket 11 with a cellular grid 12 and is connected to the receiving chamber 3 s by an inclined overflow pipe 13. The hollows of the tray 5 and the slop bath 2 are separated by the side wall 14 of the tray that does not reach the top of the bath, and parts of which are made from version 15 to discharge water from the tray to the settling bath. In the opposite trough of the tray, a hole 16 is made to drain water from the tray to the collector 4.15

The settling basin 2 is connected to the drawing chamber 3 by channel 17, which is located under tray 5.

The device works as follows. 20

Hydrofilter 1 water with trapped colorful aerosol is discharged into tray 5, the main flow of water through the opening 14 of tray 5. enters the sedimentary bath 2, from where it passes through channel 17 under tray 5 to the receiving chamber 3 and its installation pump (not shown). ) through the intake manifold 6 is pumped to the hydraulic filter 1.30

An additional, lower flow of water enters through the opening 16 of the tray 5 into the collection at moke 4. To provide this surface flow, which discharges 35 floating paint particles into the collection at moke 4, the middle part of the latter is connected by an overflow pipe 13 to the receiving chamber 3. Overflow the water of both streams is provided by the difference. levels in tray 5 and receiving chamber 3. Floating paint particles. accumulate on the surface of the water in. . at 4, some of them are drowned. Periodically, these floating 45 and sunken particles of paint are extracted using a transport perforated basket 11 placed previously on the bottom of the collection mark 4. At the same time, both floating particles of paint and V 50 are removed. Suspended paint particles from tray 5 through hole 15 of the main stream are drawn from tch. in the settling bath 2, where due to a sharp decrease in the velocity of the movement of water, the water partly settles and crawls along the inclined walls of 7 in with the moke 8. The main part of the suspensions is circulating

It is located in the circulating water of the hydraulic filter 1, gradually accumulating in it during the operation of the spray booth in about two shifts. After stopping the spray booth between work shifts (no less than 8 hours), the sediment settles throughout the entire volume of the settling bath 2 and accumulates in the bed 8.

Located above primus 8, pinned on it, removable sotoea, lattice 10 freely passes the settling and sliding suspensions down. When the hydraulic filter 1 is in operation, the cellular grid 10 of the settling bath prevents the occurrence of water movement in prime 8, as a result of which the suspended sediments do not stir up, which is caused by a violation of the cellular grating 10 of interaction of the moving water layers that are above it with the lower layers of adhesive 8. baths. The velocities of water under the cellular grid 10, due to the hydraulic slope of the water moving above the grid 10, are insignificant, since the differential static pressure on the cellular grid, in this case does not exceed a few millimeters. A similar honeycomb screen 12 is placed above the basket 11 and performs the same function, i.e. prevents sedimentation of sediment and its involvement in the water flow during operation of the hydraulic filter

Removing the sediment from prim 8 of the settling bath 2 is carried out by periodic pumping through pipe 9 using a pump (not shown).

The removal of floating particles from tray 5 is made to the collection unit with a wet - 4 flow vod1 created by a pump unit (not shown) due to the level difference in tray 5 under the hydraulic filter in the receiving chamber 3. The number of floating particles is red. suspended in water, such as floating particles have not yet lost solvent. And between work shifts, when the pump installation. does not work, suspended particles of paint are deposited all over the sedimentary bath and slide down the inclined walls 7 in at the wet 8 of the settling bath 2 through the honeycomb lattice 10, which during the operation of the hydraulic filter 1 prevents the occurrence of water movement in the primer 8, as a result of the S1 particles settled there do not stir up. The sunken particles of paint, having lost a large part of the solvent, also lose their ability to stick together, which allows them to be periodically removed from the ground by means of an 8-pump. Thus, during the operation of the spray booth, water is cleaned from floating particles, and between work shifts from suspended and settled paint particles, and

FIG. 96 to the new cycle of operation of the chamber, the water is free from mechanical particles. Paints As a result, there is no need to clean the water at the wastewater treatment plant from film-forming components that make up the paint. The use of the invention provides an improvement in the operational characteristics of the device and its maintenance conditions. The expected economic effect will be 5,490 rubles. in year.

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Claims (1)

A DEVICE FOR CLEANING WASHING WATER OF A COLORING CAMERA, containing a hydraulic filter, a settling bath, a receiving chamber and a collection pit, interconnected, located under the hydraulic filter tray. For collecting and distributing contaminated water, connected to a collection pit and a settling bath, and a pump unit with an intake pipe characterized in that, in order to increase the reliability of the spray booth and improve operating conditions, the settling tank is made with walls inclined to its center and with a pit in its center and it is installed with a sediment removal pump connected to it by a pipe immersed at one end in the sump and a honeycomb grate separating the settling bath from its sump, while the collection sump is equipped with a transport perforated basket with a honeycomb grate and connected to a receiving chamber, a swarm of inclined overflow a pipe, moreover, the cavity of the tray and the settling bath · j are separated by a side wall of the tray not reaching the top of the bathtub, in the lower part of which a hole is made, and the settling bath is connected to the receiving chamber by a channel located under the tray. 1 1148649