Water treatment system for spraying production line

Abstract

The utility model relates to the technical field of spraying processing, in particular to a water treatment system for a spraying production line. The system comprises a spraying room, a water curtain main body and a wastewater treatment tank. Wherein the water curtain main body is located in the spraying room, an interval space is formed by the water curtain main body and one inner wall of the spraying room, and two arc-shaped flow guide plates with upward convex surfaces are arranged in the interval space from top to bottom. An air outlet is formed in the top of the spraying room and located between the water curtain body and the inner wall, and a fan is installed at the air outlet. A reservoir is arranged at the bottom of the spraying room below the water curtain main body and is connected with an inlet of a wastewater treatment pond through a pipeline, and an outlet of the wastewater treatment pond is connected with a water tank at the upper part of the water curtain main body. The utility model provides a water treatment system for a spraying production line, which can solve the problems of water resource waste and high energy consumption caused by low waste gas adsorption efficiency of a water curtain in a spraying process.

Description

Technical Field

[0001] The utility model relates to the technical field of spraying processing, in particular to a water treatment system for a spraying production line. Background Art

[0002] Spraying is a processing method in which paint is atomized by a spray gun and coated on the surface of an object. The spraying operation has high production efficiency and is suitable for manual operation and industrial automation production. The application scope mainly includes fields such as hardware, plastics, furniture, military, and ships, and it is the most commonly used coating method today.

[0003] Currently, a large amount of harmful waste slag particles generated in the spraying workshop are usually pretreated by means of water spray. However, the spray structures used in the prior art generally adopt flat guide plates. The slope at the water curtain formation at the end of the flat guide plate is small, and the flow rate of the water curtain is slow, so that the particles in the waste gas cannot be fully combined. If the setting angle of the flat guide plate is increased for a large slope, more space will be occupied. At the same time, in order to cooperate with the fast-flowing water curtain, the flow rate of the waste gas passing through also needs to be coordinated to achieve an efficient adsorption effect. Summary of the Utility Model

[0004] (1) Technical Problems to be Solved

[0005] The utility model provides a water treatment system for a spraying production line, aiming to solve the problems of water resource waste and high energy consumption caused by the low adsorption efficiency of the water curtain for waste gas in the spraying process.

[0006] (2) Technical Solutions

[0007] In order to achieve the above purpose, the main technical solutions adopted by the utility model include: a spray booth, a water curtain main body, and a wastewater treatment tank. Among them, the water curtain main body is located inside the spray booth and forms a spaced space with an inner wall of the spray booth. Two arc-shaped guide plates with convex surfaces facing upward are arranged in the spaced space from top to bottom. An air outlet is provided at the top of the spray booth and the air outlet is located between the water curtain main body and the inner wall, and a fan is installed at the air outlet. A water storage tank is arranged at the bottom of the spray booth below the water curtain main body, the water storage tank is connected to the inlet of the wastewater treatment tank through a pipeline, and the outlet of the wastewater treatment tank is connected to a water tank at the upper part of the water curtain main body.

[0008] A further technical solution lies in that the water curtain main body further includes a drainage plate and a wind baffle, the drainage plate is located between the water tank and the wind baffle, and a switching valve is provided at the connection between the bottom of the water tank and the drainage plate.

[0009] A further technical solution lies in that each arc-shaped guide plate has a fixed end and a free end, and a plurality of arc-shaped guide plates are arranged at intervals and fixed to the drainage plate and the inner wall and are connected through the fixed ends. The free ends of the arc-shaped guide plates located on the drainage plate and the inner wall are staggered with each other.

[0010] A further technical solution lies in that the lower part of the drainage plate has a planar diversion plate, the wind baffle slopes upward until its top forms a narrow passage with the planar diversion plate, and its bottom extends deep into the water storage tank.

[0011] A further technical solution lies in that a liquid level sensor is arranged in the water storage tank and the bottom is an inclined plane. A drain port is arranged near the inner wall of the spraying booth on the inclined plane, and the drain port is connected to the inlet of the wastewater treatment tank.

[0012] A further technical solution lies in that the wastewater treatment tank includes a sewage area, a slag removal area and a clear water area. A first partition plate is arranged between the sewage area and the slag removal area, and the first partition plate and the top of the wastewater treatment tank form an opening. A water level regulating plate is movably connected at the opening of the first partition plate. A second partition plate is arranged between the slag removal area and the clear water area, and a notch is formed in the middle of the second partition plate. A perforated mesh is arranged at the notch.

[0013] A further technical solution lies in that the inlet of the wastewater treatment tank is located in the sewage area, the outlet of the wastewater treatment tank is located in the clear water area, and a group of water pumps are arranged at the bottom of the clear water area.

[0014] A further technical solution lies in that a stop valve is arranged on the connecting pipe between the inlet of the wastewater treatment tank and the water storage tank, and a stop valve is arranged on the connecting pipe between the outlet of the wastewater treatment tank and the water tank.

[0015] (III) Beneficial effects

[0016] The beneficial effects of the present utility model are as follows: The free end of the arc-shaped diversion plate has a large curvature, so that the water flowing down along the diversion plate has a relatively large flow velocity at the free end. At the same time, by arranging a fan at the air outlet of the spraying booth, the exhaust gas discharge speed is increased. The water and exhaust gas flowing quickly and in opposite directions can be combined more efficiently. The wastewater is recycled after slag removal treatment. Further water resources are saved and energy consumption is reduced. Description of the drawings

[0017] Figure 1 It is a schematic plan layout diagram of the water treatment system for the spraying production line;

[0018] Figure 2 It is a schematic structural diagram of the water curtain main body in the water treatment system for the spraying production line;

[0019] Figure 3 It is a schematic layout diagram of the wastewater treatment tank in the water treatment system for the spraying production line;

[0020] Figure 4 It is a schematic internal structure diagram of the wastewater treatment tank in the water treatment system for the spraying production line.

[0021]

Description of the reference numerals

[0022] 1: Spray booth; 2: Water curtain main body; 3: Wastewater treatment tank; 4: Spacing space; 5: Arc-shaped deflector; 6: Air outlet; 7: Reservoir; 8: Liquid level sensor; 9: Stop valve;

[0023] 11: Drain outlet; 21: Water tank; 22: Drainage plate; 23: Windshield; 24: Flat deflector; 31: Sewage area; 32: Slag removal area; 33: Clean water area; 34: First partition; 35: Water level regulating plate; 36: Second partition; 37: Hole mesh; 38: Water pump. Detailed implementation manner

[0024] In order to better explain the present utility model for easy understanding, the present utility model will be described in detail below with reference to the accompanying drawings through specific implementation manners.

[0025] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present utility model are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0026] In addition, in the present utility model, descriptions such as "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, "a plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0027] In the present utility model, unless otherwise clearly defined and limited, terms such as "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and can be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0028] This embodiment provides a water treatment system for a spraying production line, as Figure 1 and Figure 2 shown. The water treatment system for the spraying production line includes a spray booth 1, a water curtain main body 2, and a wastewater treatment tank 3. Among them, the water curtain main body 2 is located inside the spray booth 1 and forms a spacing space 4 with an inner wall of the spray booth 1. A plurality (two in this embodiment) of arc-shaped deflectors 5 with convex surfaces facing upward are arranged in the spacing space 4 from top to bottom.

[0029] It should be noted here that the width of the corresponding convex upward arc-shaped deflector 5 should be kept consistent with the width of the water curtain body 2. Sealing plates should be added at both ends of the spacing space 4. Preferably, both ends of the spacing space 4 abut against two inner walls of the spray booth perpendicular to the inner wall, which can maximize the width of the water curtain and then improve the purification efficiency.

[0030] An air outlet 6 is provided at the top of the spray booth 1, and the air outlet 6 is located between the water curtain body 2 and the inner wall. A fan is installed at the air outlet 6. A water storage tank 7 is arranged at the bottom of the spray booth 1 below the water curtain body 2. The water storage tank 7 is connected to the inlet of the wastewater treatment tank 3 through a pipeline, and the outlet of the wastewater treatment tank 3 is connected to the water trough 21 at the upper part of the water curtain body 2.

[0031] Specifically, the water curtain body 2 further includes a diversion plate 22 and a wind baffle 23. The diversion plate 22 is located between the water trough 21 and the wind baffle 23. A switch valve is provided at the connection between the bottom of the water trough 21 and the diversion plate 22. It should be noted here that the diversion plate 22 should have a certain inclination angle to ensure that water can flow freely. At the same time, the arc-shaped deflector 5 fixed on the diversion plate 22 and the inner wall should ensure that the fixed position is at the highest point of the arc-shaped deflector 5, which is beneficial to forming a water curtain and achieving the purpose of saving energy consumption.

[0032] Preferably, an arc-shaped air deflector can be added to the windward surface of the wind baffle 23, which can reduce the wind resistance and save energy consumption.

[0033] In this embodiment, the water flowing surface of the diversion plate 22 should be smooth enough, and it can be spliced with stainless steel plates.

[0034] In this embodiment, each arc-shaped deflector 5 has a fixed end and a free end. Two arc-shaped deflectors 5 are arranged at intervals and fixed to the diversion plate 22 and the inner wall and are connected through the fixed end; the fixing method is selected as a detachable connecting piece for fixing, preferably bolt fixing.

[0035] In this embodiment, the free ends of the arc-shaped deflectors 5 located on the diversion plate 22 and the arc-shaped deflectors 5 located on the inner wall are staggered with each other. It should be noted that the free ends are staggered with each other to ensure that the water flowing up and down from the upper arc-shaped deflector 5 can flow onto the lower arc-shaped deflector 5 to form a water film. In the case of a certain water flow rate, such a setting method can ensure that the water film is more complete. It can play a role in saving water resources and improving the dust removal efficiency.

[0036] In this embodiment, the lower part of the diversion plate 22 has a planar deflector 24. The wind baffle 23 slopes upward until its top forms a narrow passage with the planar deflector 24, and its bottom extends deep into the water storage tank 7. A liquid level sensor 8 is arranged in the water storage tank 7, and the bottom is a slope. A drain port 11 is arranged at the slope near the inner wall of the spray booth 1, and the drain port 11 is connected to the inlet of the wastewater treatment tank 3.

[0037] It should be noted here that on the one hand, the planar deflector 24 buffers the downward flowing water above, and secondly, it can cooperate with the wind deflector 23 to form a narrow channel, increasing the flow velocity of the exhaust gas passing through the spray booth 1, which is conducive to improving the absorption efficiency.

[0038] In this embodiment, as Figure 3 and Figure 4 shown, the wastewater treatment tank 3 includes a sewage area 31, a slag removal area 32, and a clear water area 33.

[0039] Specifically, a first partition 34 is provided between the sewage area 31 and the slag removal area 32, and the first partition 34 forms an opening with the top of the wastewater treatment tank 3. A water level regulating plate 35 is movably connected to the first partition 34 at the opening. The water level regulating plate 35 is used to control the amount of sewage passing through. A second partition 36 is provided between the slag removal area 32 and the clear water area 33, and a notch is opened in the middle of the second partition 36, and a partial hole net 37 is provided at the notch. The partial hole net 37 is used to further filter the water after slag removal.

[0040] Specifically, the inlet of the wastewater treatment tank 3 is located in the sewage area 31, the outlet of the wastewater treatment tank 3 is located in the clear water area 33, and a group of water pumps 38 are provided at the bottom of the clear water area 33. A stop valve 9 is provided on the connecting pipe between the inlet of the wastewater treatment tank 3 and the water storage tank 7, and a stop valve 9 is provided on the connecting pipe between the outlet of the wastewater treatment tank 3 and the water tank 21. The stop valve 9 here is used to cut off the water flow during equipment maintenance.

[0041] The specific working process of this embodiment is as follows: The water in the clear water area 33 is pumped into the pipeline by the water pump 38 and continues to flow along the pipeline to the water tank 21 above the spray booth 1. The water in the water tank 21 flows downward along the drainage plate 22 through the switch valve at the bottom of the water tank 21 and reaches the arc-shaped deflector 5. When passing through the free end of the arc-shaped deflector 5 with a large curvature, a fast-flowing water curtain is formed. After being guided by the multi-stage arc-shaped deflector 5, it finally flows to above the wind deflector 23 through the planar deflector 24 at the bottom, and overflows downward to the water storage tank 7 after reaching a certain amount, which ensures good airtightness. At the same time, the internal circulating exhaust of the spray booth 1 is carried out. Referring to Figure 2 the arrow shown in Figure 2 the fresh air enters through the air inlet at the upper right corner of the spray booth 1 and flows along the direction shown by the arrow in the figure, carrying the dust in the spraying operation space to the water storage tank 7. Under the pumping action of the wind deflector 23 and the fan in the upper left corner, it quickly passes through the multi-stage water curtain. The wind direction and the water flow direction are opposite, and the impurities and dust in the air flow are efficiently absorbed. Referring to Figure 4The water flows to the entrance indicated by the arrow on the left side, and then flows to the sewage area 31 for storage. The amount of water entering the slag scooping area 32 is controlled by adjusting the water level regulating plate 35 on the first partition 34. After physical and chemical impurities are removed and salvaged in the slag scooping area 32, the water enters the clean water area 33 through the mesh 37 to complete the water cycle.

[0042] It should be understood that the above description of the specific embodiments of the utility model is only for illustrating the technical route and features of the utility model, and its purpose is to enable those skilled in the art to understand the content of the utility model and implement it accordingly, but the utility model is not limited to the above specific implementation methods. All changes or modifications made within the scope of the claims of the utility model should be included in the protection scope of the utility model.

Claims

1. A water treatment system for a spraying production line, characterized in that The water treatment system of the spraying production line includes a spray booth (1), a water curtain main body (2), and a wastewater treatment tank (3); The water curtain main body (2) is located inside the spray booth (1) and forms a spaced space (4) with an inner wall of the spray booth (1). A plurality of arc-shaped guide plates (5) with convex surfaces facing upward are arranged in the spaced space (4) from top to bottom; An air outlet (6) is provided at the top of the spray booth (1), and the air outlet (6) is located between the water curtain main body (2) and the inner wall. A fan is installed at the air outlet (6); A water storage tank (7) is arranged at the bottom of the spray booth (1) below the water curtain main body (2). The water storage tank (7) is connected to the inlet of the wastewater treatment tank (3) through a pipeline, and the outlet of the wastewater treatment tank (3) is connected to a water tank (21) at the upper part of the water curtain main body (2).

2. The water treatment system for the spraying production line according to claim 1, wherein The water curtain main body (2) further includes a diversion plate (22) and a wind baffle (23). The diversion plate (22) is located between the water tank (21) and the wind baffle (23), and a switching valve is provided at the connection between the bottom of the water tank (21) and the diversion plate (22).

3. The water treatment system of the spraying production line according to claim 2, wherein Each of the arc-shaped guide plates (5) has a fixed end and a free end. A plurality of the arc-shaped guide plates (5) are arranged at intervals and fixed to the diversion plate (22) and the inner wall and are connected through the fixed ends; The free ends of the arc-shaped guide plates (5) located on the diversion plate (22) and the arc-shaped guide plates (5) located on the inner wall are staggered with each other.

4. The water treatment system for the spraying production line according to claim 2, wherein The lower part of the diversion plate (22) has a flat guide plate (24). The wind baffle (23) is inclined upward so that its top forms a narrow passage with the flat guide plate (24), and its bottom extends deep into the water storage tank (7).

5. The water treatment system of the spraying production line according to claim 1, characterized in that, A liquid level sensor (8) is arranged in the water storage tank (7), and the bottom is a slope. A drain port (11) is arranged at the slope near the inner wall of the spray booth (1), and the drain port (11) is connected to the inlet of the wastewater treatment tank (3).

6. The water treatment system for the spraying production line according to claim 1, characterized in that, The wastewater treatment tank (3) includes a sewage area (31), a slag removal area (32), and a clear water area (33); A first partition plate (34) is arranged between the sewage area (31) and the slag removal area (32), and the first partition plate (34) forms an opening with the top of the wastewater treatment tank (3). A water level regulating plate (35) is movably connected to the first partition plate (34) at the opening; A second partition plate (36) is arranged between the slag removal area (32) and the clear water area (33), and a notch is formed in the middle of the second partition plate (36). A perforated mesh (37) is arranged at the notch.

7. The water treatment system for the spraying production line according to claim 6, wherein, The inlet of the wastewater treatment tank (3) is located in the sewage area (31), the outlet of the wastewater treatment tank (3) is located in the clear water area (33), and a group of water pumps (38) are arranged at the bottom of the clear water area (33).

8. The water treatment system for the spraying production line according to claim 1, characterized in that, A stop valve (9) is provided on the connecting pipe between the inlet of the wastewater treatment tank (3) and the water storage tank (7), and a stop valve (9) is provided on the connecting pipe between the outlet of the wastewater treatment tank (3) and the water tank (21).

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