SU1111840A1 - Installation for washing articles - Google Patents

Abstract

INSTALLATION FOR PRODUCTS, containing two washing chambers installed in series with collectors and drain devices, one of / J / 1 L Jf L hy / X A: AND L С J С-уf 4 - / К / /, f JN / (R) -Which are connected by a circulation system with a container for the cleaned cleaning solution and a line for cleaning the cleaning solution of coarse contaminants, and the other is connected by a circulation system to the wash water tank, in order to prevent the discharge of drains to the environment, the installation has additional wash water tanks, each of which is equipped with a line for cleaning wash water from coarse soils and a line for cleaning wash water from emulsified soils, the tanks for wash water are connected in series, and the first tank during the washing process is connected to a line for cleaning detergent from coarse soils. (L S 2 l. Yr 11 / and / jUr I / D M I F} / ff -d .L 4 4 / C / t / f i / J

Description

The invention relates to the cleaning of products from contamination by blasting with washing liquids, in particular, to installations for washing products with closed circulation of washing liquids, and can be used in various industries.

A device for washing products is known, containing two washing chambers installed in series with collectors and drain devices, one of which is connected to the circulation system with a tank for the purified cleaning solution and a line to clean the cleaning solution from coarse contaminants, and the other is connected to the circulation system with wash water tank 1.

A disadvantage of the known installation is that during operation there is a periodic discharge of the cleaning solution and contaminated wash water to the sewage system, leading to pollution of the environment.

The aim of the invention is to prevent the discharge of waste into the environment.

The goal is achieved by the installation of a device for washing products, containing two washing chambers installed in series with collectors and drain devices, one of which is connected to the Pyramula system with a tank for a cleaned washing solution and a line for cleaning the washing solution from coarse soils, and the other is connected by a cycling system with a wash water tank, it has additional wash water tanks, each of which is equipped with a line for cleaning wash water from coarse soils and lines. obmyvochnoy water purification it from the emulsified contaminants, and water tanks for obmyvochnoy connected in series, and downstream of the first washing tank connected to the line cleaning detergent solution from coarse contaminants.

FIG. 1 shows schematically the washing chambers of the installation, general view; in fig. 2 is a schematic installation diagram for washing products.

The installation includes a washing chamber i with wash frames 2, a collector 3 and a drain device 4, a washing chamber 5 installed in series with the chamber 1 and having wash frames 6, a collector 7 and drain device 8, a container 9 for purified cleaning solution connected by a pump 10 and pipeline II, equipped with a heat exchanger 12 with washing frames 2 of chamber 1, a line for cleaning detergent from coarse soils, and a cleaning line for cleaning solution from emulsified soils.

The cleaning of the cleaning solution from coarse contaminants contains a tank that is connected with pipelines. 13 for receiving contaminated washing solution, pump 14, strainer 15, block of hydrocyclones connected in parallel 16. The tank 13 is equipped with an oil trap 17 and an oil collector 18 connected to it and connected through a drainage device 4 to the chamber 1. Multihydro-cyclones 16 in the upper part are connected by a pipeline with a capacity of 9 for purified detergent solution.

The line for cleaning the washing solution from emulsified contaminants includes a pump 19 connected to the tank 9 for the cleaned cleaning solution, a feed pipe 20 equipped with a heat exchanger 21, an electrofloater 22, a drain pipe 1 a pipe 23 connected to the tank 9. The oil collector 18 of the tank 13 by means of a pump.24 and conduit 25 is associated with an oil collector 26. Multi-hydrocyclones 16 in their lower parts are connected by pipeline 27 with a collection of 28 Islam. Electroplotator .22 connected by pipe 29 with a collection of 26 oil. The unit has tank 30 and additional tanks 31 and 32 for wash water and the lines corresponding to these tanks.

 cleaning of wash water from coarse soils and line cleaning of wash water from emulsified soils. Each of the tanks 30, 31 and 32 is connected to the pipeline 33: tank 30 by means of pump P1 and 34 and electrified gate valve 35, tank 31 by means of pump 36 and electrified gate valve 37, tank 32 by pump 38 and electrified back valve 39.

The pipeline 33 is equipped with a heat exchange 1P1KOM 40 and is connected to the wash frames 6 of the chamber. The line for cleaning the wash water from coarse dispersed soils, connected to tank 30, contains, step by step, pipes 41 for receiving contaminated wash water, pump 42, strainer 43, block in parallel with multi-hydrocyclones 44. Pipe 18 has an oil trap 45 connected to an oil collector and is connected via electrified gate 47 to the drain device 8 of the chamber 5. The multi-hydrocyclones 44 in their upper part are connected by pipeline to the tank 30 for washing water. Lines of cleaning wash water from coarse

0 contamination, connected to tank 31, contains a tank 48 connected in series for contaminated washing water, pump 49, strainer 50, a block of parallel multi-hydro cyclones 51. The tank 48 is equipped with an oil 5 trap 52 connected to the oil collector 53, and through an electrified gate valve 54 is connected to a drain device 8 of the chamber 5.

The multigilrocycloids 51 in their nergy parts are connected by pipeline to the wash tank 31. The lines for cleaning the wash water from coarsely dispersed soils, connected to the tank 32, contain a tank 55 connected in series for the dirty wash water, a pump 56, a mesh filter 57 and a multi-hydrocyclone unit 58, in their upper part connected with a pipeline tank 32 for wash water. The tank 55 is equipped with an oil trap 59 connected to the oil pan 60, and through an electrified gate valve 61 is connected to the discharge device 8 of the chamber 5.

The line for cleaning the wash water from emulsified contaminants includes a pump 62, an underflow pipe 63, equipped with a heat exchanger 64, pressure tanks 65, pressure floater 66, pipeline 67, connecting pressure buoys 65 and pressure flotation 66, discharge pipe 68. Tanks 30, 31 and 32 through electrified gate valves 69, 70 and 71 are connected to pump 62, and through electrified gate valves 72, 73 and 74 to outlet pipe 68 of the wash water cleaning line from emulsified soils.

In addition, the tanks 30, 31 and 32 through electrified valves 75 and 76 are connected in series with each other. The tank 30 is connected by means of the pump 62 and the pipeline 77 to the tank 13 of the line for cleaning the cleaning solution from coarse soils. Oil collectors 46, 53 and 60 tanks 41, 48 and 55 through valves 78, 79 and 80, pump 81 and pipeline 82 are connected to an oil collector 26. The multi-hydrocyclones 44, 51 and 58 in their lower part are connected to collection 28 via pipes 83, 84 and 85. sludge Pressure floater 66 pipe 86 is connected to the collection of 26 oil. The installation has a solution preparation unit 87 connected via pipeline 88 to the supply pipe 20 of the cleaning solution of my solution from emulsified contaminants and through pipe 89 with a capacity of 9 for the cleaned cleaning solution.

The installation works as follows.

The product is fed into the washing chamber 1 for washing with a solution. Simultaneously with supplying the blower to the washing chamber 1, turn on the pump 10 and the washing solution from the tank 9 through the conduit 11, the heated heat exchange of no. 12 is fed to the wash frames 2. The contaminated washing solution flows from the product into the collection 3, from -Which through the drain device 4 by gravity enters the receiving tank 13, where there is a selection of oil from it. The oil products in tank 13 float to the surface of the solution and are collected by the oil bath 17, from which the mass is discharged 18. From the oil pan 18 oil products are pumped 24, including depending on their level in the oil pan, pumped through oil pipe 25 into the oil pan 26. After the solution in the tank 13 rises to a certain level, the pump 14 is turned on, which delivers the solution from the tank 13 through the mesh

filter 15 in the unit of parallel working multihydrocyclones 16. The purified solution from multihydrocyclones 16 enters the tank 9 for the purified detergent solution. 16 contaminated in multihydrocyclones but pipeline 27 is diverted to collection 28. Then, from the tank 9, the cleaning solution is again supplied by the pump 10 to the washing frames 2, and a small part of it by the pump 19 through the pipeline 20 is fed to the electrofloater 22 to clean it from emulsified contaminants. In order to improve the quality of cleaning in electroflamat 22, the solution is cooled by conduit 20 by means of heat exchanger 21 when moving. The fluid solution from the tank 9 continues with a constant supply of a part of the solution from the tank 9 to the electrofloater 22, thereby improving the quality of the entire washing solution that flows in the tank 9. After the washing is finished, the solution circulation system pumps are disconnected. The product is transferred to the chamber 5 for washing with water. At the same time, the pump 34 is turned on and the valves 35 and 47 are opened. The washing water from the tank 30 by the pump 34 is fed through the valve 35 through the valve 33, through which it is fed, heated by the heat exchanger 40, into the washing frames 6 and gets on the product that is in the chamber 5 is in continuous reciprocating motion. Polluted water flows from the washed product into collection 7, from which by gravity through the drain device 8 and the valve

 47 enters tank 41. In tank 41, petroleum products are released from contaminated water. Not (|) heat products in tank 41 float to the surface of the water and are collected by the oil trap 45, from which Q comes into the oil pan 46, and then through valve 78 by pump 81, which is turned on depending on the level of oil products, but transferred to pipe 82 into oil collector 26. After the water in the tank 41 rises to a certain level, the pump 42 is turned on, which supplies water from the tank 41 through the screen filter 43 to the block of parallel multi1-hydrocyclones 44. From the multi-hydrocyclones 44, the water from the coarse polluted water flows again. the water of the mul tihydrocyclone 44 mechanical impurities through the pipeline 83 enters the collection 28 sludge. Water from tank 30 is then supplied again to wash the product into the washing frames 6 of chamber 5, and a small part through valve 69 by pump 62 is supplied through conduit 63 to pressure tanks 65 in which it is saturated with air and then from them through pipeline 67 enters the pressure a flotation cell 66, in which it is purified from emulsified contaminants. In order to improve the quality of water purification in the pressure floater 66, it is cooled by means of the heat exchanger 64 when supplied through the pipeline 63. The purified water from the pressure flotation cell 66 through the pipeline 68 through the valve 72 is fed back to the tank 30. The extractorHHie from the contaminated water is removed from the pressure flotation machine 66 through conduit 86 to oil collection 26. Then, the cycle of the movement and wash water from the tank 30 continues with the supply of part of the wash water from the tank 30 to the wash water cleaning line from emulsified contaminants. After the product is washed with water from the tank 30, the valves 35 and 47 are closed and the pump 34 is turned off. Then, the product is washed with water from the tank 31. For this, the pump 36 is turned on and the valves 37 and 54 are opened. The water from the tank 31 by the pump 36 through the valve 37 through the pipeline 33 is supplied to the wash frames 6 of the chamber 5. collection 7 but the drain device 8 through the valve. 54 is fed to the coarse water purification line. contamination connected to tank 31.

The operation of this line is similar to the operation of the water purification line from coarse contaminants connected to the tank 30. The purified water enters the tank 31 again, and then is fed again to wash the product into the chamber 5, while part of it is pumped through the valve 70 wash water cleaning line From the emulsified impurities, from which water passes through valve 73 to tank 31. After the product is washed with water from tank 31, valves 37 and 54 are closed and pump 36 is turned off. Then the pump 38 is turned on to wash the product with water from the tank 32 and at the same time the valves 39 and 61 open. Water from the tank 32 by pump 38 through valve 39 is supplied via pipeline 33 to chamber 5. The contaminated water from collector 7 is discharged through the valve 8 ; KU 61 enters the line for cleaning water from coarsely dispersed soils, - connected to tank 32.

The operation of this line is similar to that (water purification from coarse-dispersed (aggregates connected to tank 30). Water drops back into tank 32, and then fed again to wash the product into chamber 5, with part of it through valve 71 with pump 62 The inlet is in the cleaning line of the wash water from emulsified contaminants and then returns to the tank 32 through the valve 74 again.

The washing time of the product with water from the tanks 30, 31 and 32 is set depending on the state of the surface of the product. Due to the fact that in each of the tanks 30, 31 and 32, after cleaning the coarsely dispersed soils, part of the wash water is cleaned with the help of a pressure floater 66 from emulsified soils, the quality of all the wash water in each of the tanks 30, 31 and 32 is improved.

After washing, water from the tank 32 is removed from the installation, and another product is fed into chamber 1.

During the washing process, the water in the tanks 30, 3 and 32 is gradually contaminated. After the degree of contamination of water in tank 30 reaches the limit unacceptable by technological requirements, part of the water from tank 30 is pumped through line 77 to feed washing solution into tank 13 of the cleaning solution cleaning system from coarse soils. Then from tank 31, to ko. the torus has less polluted water than in tank 30, part 75 is poured through valve 75 into tank 30 and thus improves the quality of water in tank 30, and from tank 32, in which MeFiee is polluted water, than in

tank 31, through the valve 76 pour part of the water into the tank 31 and thus improve the quality of water in the tank 31. Clean water is supplied to tank 32 in the same volume as was supplied from tank 30 to tank 13. Thereafter, water from tanks 30, 31 and 32 again

can be used to wash out items.

By reducing the concentration of the washing solution, the electrofloater 22 from the solution preparation unit 87 is fed through pipelines 88 and 20, the pure solution, the concentration of which provides npouecd electroflotation. To ensure the correction of the composition of the cleaning solution from the solution preparation unit 87 via the eE pipeline 9 to the cleaned mine. A clear solution of increased concentration is obtained.

The proposed installation provides complete prevention of the discharge of contaminated cleaning solution and contaminated wash water into the environment.

Claims (1)

INSTALLATION FOR WASHING PRODUCTS, containing two washing chambers installed in series, with collectors and drain devices, one of FIG. 1 of which are connected by a circulation system to a tank for purified detergent solution and a line for cleaning the detergent solution from coarse particles, and the other is connected by a circulation system to a tank for washing water, characterized in that, in order to prevent the discharge of effluents into the environment, the installation has additional tanks for washing water, each of which is equipped with a line for cleaning washing water from coarse particulate contaminants and a line for cleaning washing water from emulsified contaminants, and tanks for washing water oedineny sequentially, downstream of the first washing tank connected to the line cleaning detergent solution from coarse dirt. Ill 1840