CN213569907U

CN213569907U - Closed paint water solution processing apparatus

Info

Publication number: CN213569907U
Application number: CN202022477040.9U
Authority: CN
Inventors: 尹志华; 张媛
Original assignee: Gansu Agricultural Vocational And Technical College
Current assignee: Gansu Agricultural Vocational And Technical College
Priority date: 2020-11-01
Filing date: 2020-11-01
Publication date: 2021-06-29
Anticipated expiration: 2030-11-01

Abstract

The utility model relates to the technical field of wastewater treatment, in particular to a closed paint water solution treatment device, which comprises a separation tank, wherein the separation tank is connected with a backwater filter and a drainage valve through a pipeline, the drainage valve is connected at the rear side of the backwater filter, the backwater filter is connected at the lower part of the separation tank, a liquid pipeline is connected on the pipeline between the backwater filter and the drainage valve, the other end of the liquid pipeline is connected with a water pump inlet, a water pump outlet is provided with a buffer tank through a pipeline, the bottom of the buffer tank is connected on the pipeline between an injection valve and the separation tank through a pipeline, a pressure reducing valve is arranged on the pipeline between the buffer tank and the injection valve, the treatment process reduces the damage of volatile components in the paint to a human body, reduces the pollution to the environment, absorbs volatile gas, eliminates the pollution of volatile substances, enables the air to be recycled, and filters, prevent the blockage of the circulating water pipeline.

Description

Closed paint water solution processing apparatus

Technical Field

The utility model relates to a waste water treatment technical field specifically is a closed paint aqueous solution processing apparatus.

Background

The paint is widely applied in the fields of automobiles, furniture, electric appliances, home decoration, corrosion prevention and the like, and has large use amount. The paint is a compound, has the characteristics of complex components in the paint, pollution in the using process, irritation and the like, and particularly in the large-scale spraying industry with high automation degree, the paint falling into the air in the spraying process can be absorbed into water for secondary treatment. The paint aqueous solution is added with a medicament during treatment, so that the paint aqueous solution can not be adhered to the wall of a pipe or a wall of the pipe, and paint residues of the paint can float on the water surface to be separated. The paint aqueous solution treated by adding the medicament also faces some problems in subsequent treatment, such as paint slag can not float up well; some auxiliary agents in the paint are dissolved in water and are not easy to float; some volatile components are emitted into the air to cause atmospheric pollution, so that human bodies are injured to a certain extent, and the treatment process cannot meet the requirement of environmental protection.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a closed paint aqueous solution processing apparatus carries out the grain sediment separation to paint aqueous solution, makes the difficult jam of equipment pipeline, improves the treatment effect of paint aqueous solution, reduces the paint aqueous solution and volatilizees the injury that causes the human body, reduces the pollution of paint aqueous solution to the environment.

For solving the technical problem, the utility model relates to a closed paint water solution processing apparatus is including the separation tank, there is the sampling valve through the pipe connection on the separation tank, there are return water filter and drain valve through the pipe connection on the separation tank, drain valve connects in return water filter rear side, return water filter connects in the separation tank lower part, be connected with the fluid line on the pipeline between return water filter and the drain valve, the fluid line other end is connected with the water pump entry, there is the buffer tank water pump export through the pipeline, there is the pipe connection on the pipeline between sampling valve and separation tank buffer tank bottom through the pipeline, be equipped with the relief pressure valve on the pipeline between buffer tank and the sampling valve.

Furthermore, the top of the separation tank is provided with a gas pipeline, a venturi ejector is connected to the pipeline between the outlet of the water pump and the buffer tank, and the other end of the gas pipeline is connected to the venturi ejector.

Furthermore, the bottom surface of the separation tank is connected with a slag discharge valve through a pipeline.

Furthermore, the separation tank in be connected with the waste residue filter screen, be equipped with the filter screen on the waste residue filter screen, the filter screen is established in waste residue filter screen lower part, the filter screen is equipped with a plurality ofly.

Further, the separation tank is divided into two areas by the waste residue filter screen, and the top surfaces of the two areas are connected with pipelines which are connected on a gas pipeline.

Furthermore, the separation tank is divided into two areas by the waste residue filter screen, and the bottom surfaces of the two areas are connected with a slag discharge valve through pipelines.

The utility model discloses a theory of operation does: adding a medicament into the paint aqueous solution for viscosity elimination, adding the flocculated paint aqueous solution into a separation tank through a sample injection valve, layering in the separation tank, allowing scum to float on the upper layer, filtering paint residues from the water on the lower layer through a waste residue filter screen, allowing the water to flow to the other half of the separation tank, continuously performing gas-liquid separation, allowing a small amount of gas to flow into a gas pipeline, allowing the paint aqueous solution to flow through a water return filter, allowing one part of the paint aqueous solution to be discharged through a drain valve, allowing the other part of the paint aqueous solution to flow into a water pump through a liquid pipeline for pressurization, allowing the paint aqueous solution output by the water pump to flow into a buffer tank after being mixed with the air from the separation tank through a Venturi ejector, allowing the gas-liquid mixture output by the buffer tank to be released through a pressure reducing valve and flow into the separation tank, allowing volatile, forming a closed processing system. The scum in the water is discharged through a slag discharge valve periodically.

The utility model has the advantages that:

1. the separation pool is arranged, volatile substances in the paint aqueous solution are not volatile, the damage of volatile components in the paint to a human body is reduced in the treatment process, and the pollution to the environment is reduced;

2. the air filter is arranged to absorb volatile gas, so that pollution of volatile substances is eliminated, and air is recycled;

3. the Venturi ejector is arranged to adjust the content of air in water and change the pressure in the separation tank, so that volatile components in the separation tank are more volatile, and the separation is more thorough;

4. the pressure reducing valve is arranged to release gas dissolved in the paint aqueous solution in a micro-bubble mode in the separation tank, so that paint particles sinking in water and paint auxiliaries can float upwards, and precipitates in the separation tank are reduced;

5. a backwater filter is arranged for filtering the paint aqueous solution separated from the separation tank to prevent the blockage of a circulating water pipeline;

6. the waste residue filter screen is arranged, the filter screen is arranged on the waste residue filter screen, the filter screen is arranged on the lower portion of the waste residue filter screen, water and waste residue can be separated, and the waste residue filter screen is not easy to block in the filtering process due to the fact that the residue is on the upper layer.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic structural diagram of the waste residue filter screen of the utility model.

In the figure: 1. a water pump; 2. a venturi ejector; 3. a buffer tank; 4. a separation tank; 5. an air filter; 6. a waste residue filter screen; 601. a filter screen; 7. a backwater filter; 8. a pressure reducing valve; 9. a sample injection valve; 10. a gas conduit; 11. a liquid conduit; 12. a drain valve; 13. and a slag discharge valve.

Detailed Description

As shown in fig. 1, fig. 2 is a drawing, the utility model relates to a closed paint aqueous solution processing apparatus is including separation tank 4, there is sample introduction valve 9 through the pipe connection on separation tank 4, there are return water filter 7 and drain valve 12 through the pipe connection on separation tank 4, drain valve 12 is connected in return water filter 7 rear side, return water filter 7 is connected in separation tank 4 lower part, be connected with liquid pipeline 11 on the pipeline between return water filter 7 and the drain valve 12, the liquid pipeline 11 other end is connected with the entry of water pump 1, there is buffer tank 3 in the export of water pump 1 through the pipeline, there is the pipeline in buffer tank 3 bottom through the pipe connection on the pipeline between sample introduction valve 9 and separation tank 4, be equipped with relief pressure valve 8 on the pipeline between buffer tank 3 and the sample introduction.

Further, the top of the separation tank 4 is provided with a gas pipeline 10, a venturi ejector 2 is connected to the pipeline between the outlet of the water pump 1 and the buffer tank 3, and the other end of the gas pipeline 10 is connected to the venturi ejector 2.

Furthermore, the bottom surface of the separation tank 4 is connected with a slag discharge valve 13 through a pipeline.

Furthermore, a waste residue filter screen 6 is connected in the separation tank 4, a filter screen 601 is arranged on the waste residue filter screen 6, the filter screen 601 is arranged at the lower part of the waste residue filter screen 6, and a plurality of filter screens 601 are arranged.

Further, the separation tank 4 is divided into two areas by the waste residue filter screen 6, the top surfaces of the two areas are connected with pipelines, and the two pipelines are connected to the gas pipeline 10.

Furthermore, the separation tank 4 is divided into two areas by the waste residue filter screen 6, and the bottom surfaces of the two areas are connected with a slag discharge valve 13 through pipelines.

The utility model discloses a theory of operation does: adding a medicament into a paint aqueous solution for viscosity elimination, adding the flocculated paint aqueous solution into a separation tank 4 through a sample injection valve 9, layering in the separation tank 4, floating scum on the upper layer, filtering paint residues from the water on the lower layer through a waste residue filter screen 6, flowing to the other half of the separation tank 4, continuously performing gas-liquid separation, allowing a small amount of gas to flow into a gas pipeline 10, allowing the paint aqueous solution to pass through a backwater filter 7, discharging one part of the paint aqueous solution through a drain valve 12, allowing the other part of the paint aqueous solution to flow into a water pump 1 through a liquid pipeline 11 to pressurize the paint aqueous solution, mixing the paint aqueous solution output by the water pump 1 with the air from the separation tank 4 through a Venturi ejector 2, allowing the mixed air to flow into a buffer tank 3, allowing the gas-liquid mixture output by the buffer tank 3 to be released through a pressure reducing valve 8 and flow into the separation, and then flows into the venturi ejector 2 through the gas pipeline 10 to form a closed processing system. The scum in the water is periodically discharged through a scum valve 13.

Claims

1. A closed paint water solution processing device is characterized in that: including separation tank (4), there are injection valve (9) through the pipe connection on separation tank (4), there are return water filter (7) and drain valve (12) through the pipe connection on separation tank (4), drain valve (12) are connected in return water filter (7) rear side, return water filter (7) are connected in separation tank (4) lower part, be connected with liquid pipeline (11) on the pipeline between return water filter (7) and drain valve (12), liquid pipeline (11) other end is connected with water pump (1) entry, there is buffer tank (3) water pump (1) export through the pipeline, on the pipeline of buffer tank (3) bottom between injection valve (9) and separation tank (4) through the pipe connection, be equipped with relief pressure valve (8) on the pipeline between buffer tank (3) and injection valve (9).

2. The enclosed aqueous paint solution treatment apparatus according to claim 1, wherein: the top of the separation tank (4) is provided with a gas pipeline (10), a venturi ejector (2) is connected on a pipeline between the outlet of the water pump (1) and the buffer tank (3), and the other end of the gas pipeline (10) is connected on the venturi ejector (2).

3. The enclosed aqueous paint treatment apparatus of claim 2, wherein: the bottom surface of the separation tank (4) is connected with a slag discharge valve (13) through a pipeline.

4. The enclosed aqueous paint treatment apparatus of claim 3, wherein: the separation tank (4) in-connection have waste residue filter screen (6), be equipped with filter screen (601) on waste residue filter screen (6), establish in waste residue filter screen (6) lower part filter screen (601), filter screen (601) are equipped with a plurality ofly.

5. The enclosed aqueous paint treatment apparatus of claim 4, wherein: the separation tank (4) is divided into two areas by the waste residue filter screen (6), the top surfaces of the two areas are connected with pipelines, and the two pipelines are connected on the gas pipeline (10).

6. The enclosed aqueous paint treatment apparatus of claim 4, wherein: the separation tank (4) is divided into two areas by the waste residue filter screen (6), and the bottom surfaces of the two areas are connected with a slag discharge valve (13) through pipelines.