Paint spraying waste gas circulating treatment device

Abstract

The utility model discloses a paint spraying waste gas circulating treatment device, which relates to the technical field of paint spraying waste gas treatment, and comprises a purification box, a dispersion box, a water purification box and a settling box, the purification box is fixedly communicated with a gas inlet pipe and an exhaust pipe, a sprayer is arranged in the purification box, and the bottom surface of the purification box is fixedly communicated with a first conveying pipe; and the bottom end of the first conveying pipe is fixedly communicated with the dispersing box. The paint liquid separation device is reasonable in design structure, a dispersing agent is added into the dispersing box and fully mixed by the stirring assembly, so that paint liquid in wastewater loses viscosity, subsequent treatment is facilitated, then a flocculating agent is added into the settling box and stirred by the second stirring assembly, the paint liquid is promoted to be flocculated and agglomerated, effective separation of the paint liquid is realized, and the paint liquid separation efficiency is improved. The waste water treatment efficiency is improved, the purified water is recycled through the filter and the water supply assembly, the consumption of water resources is remarkably reduced, the operation cost is reduced, and meanwhile the influence on the environment is relieved.

Description

Technical Field

[0001] The utility model relates to the technical field of paint spraying waste gas treatment, in particular to a paint spraying waste gas circulation treatment device. Background Technique

[0002] A paint spraying booth is a device that provides a special environment for painting operations. It can spray and color the painting object in the room. When the paint spraying booth is working, a large amount of dust and waste gas will be generated. The generated dust and waste gas are exchanged with the outside air through the ventilation opening. Directly discharging the dust and waste gas is likely to cause pollution to the external environment. Therefore, a water scrubber tower is needed to treat the dust and waste gas generated during paint spraying.

[0003] In a Chinese patent with the publication number CN209204920U, a paint spraying waste gas circulation treatment device is disclosed. The waste gas entering the diffuser tube from the inlet pipe can be timely diffused into the inner cavity of the spray booth from the side of the diffuser tube for spraying, increasing the contact area between the gas molecules of the waste gas and the spray liquid, and improving the spraying effect; a pressure sensor and an electromagnetic three-way valve are respectively connected to the surface and the end of the outlet pipe. Under the control of the controller, the flow direction of the waste gas can be intelligently controlled, improving the dust removal effect.

[0004] Although the above solution can increase the contact area between the waste gas and the spray liquid through multi-point spraying, however, a large amount of water resources are needed when using the water scrubber tower, and it is difficult to effectively remove the paint in the waste gas attached to the water only through a single filter screen. The waste water generated during waste gas treatment is difficult to be recycled and reused, resulting in waste of water resources. Therefore, we provide a paint spraying waste gas circulation treatment device to solve the above problems. Summary of the Utility Model

[0005] I) Technical Problems to be Solved

[0006] The purpose of the utility model is to make up for the deficiencies of the prior art and provide a paint spraying waste gas circulation treatment device.

[0007] II) Technical Solutions

[0008] To achieve the above object, the present utility model provides the following technical solutions: A spray painting waste gas recycling treatment device, comprising a purification tank, a dispersion tank, a water purification tank and a sedimentation tank. An air inlet pipe and an exhaust pipe are fixedly communicated with the purification tank. A sprayer is arranged inside the purification tank. The bottom surface of the purification tank is fixedly communicated with a first conveying pipe, and the bottom end of the first conveying pipe is fixedly communicated with the dispersion tank. A first chemical adding pipe is fixedly communicated with the dispersion tank. A first stirring assembly is arranged inside the dispersion tank. The bottom surface of the dispersion tank is fixedly communicated with a second conveying pipe, and the bottom end of the second conveying pipe is fixedly communicated with the sedimentation tank. A second stirring assembly is arranged inside the sedimentation tank, and the second stirring assembly is in transmission connection with the first stirring assembly. A second chemical adding pipe is fixedly communicated with the sedimentation tank. Above the sedimentation tank, there is a water supply assembly for conveying the water in the water injection pipe and the water in the water purification tank to the sprayer.

[0009] Further, the first stirring assembly includes a driven shaft rotatably connected to the dispersion tank. A first stirring blade is fixedly connected to the driven shaft, and the first stirring blade is located inside the dispersion tank. Second valves are installed on both the first conveying pipe and the second conveying pipe.

[0010] Further, the second stirring assembly includes a motor installed on the sedimentation tank. The output rotating shaft of the motor is provided with a driving shaft. A second stirring blade is fixedly connected to the driving shaft, and the second stirring blade is located inside the sedimentation tank. Transmission wheels are installed on both the driven shaft and the second stirring blade, and the two transmission wheels are in belt transmission connection.

[0011] Further, a drainage plate is fixedly connected to the inner bottom wall of the sedimentation tank. A sewage discharge pipe is fixedly communicated with the sedimentation tank.

[0012] Further, the water supply assembly includes a water pump installed on the purification tank. The input end of the water pump is fixedly communicated with a main water inlet pipe. A first water inlet pipe and a second water inlet pipe are installed on the main water inlet pipe. The bottom end of the first water inlet pipe penetrates through the water purification tank and extends to the inside of the water purification tank. The bottom end of the second water inlet pipe penetrates through the sedimentation tank and is provided with a filter. First valves are installed on both the first water inlet pipe and the second water inlet pipe.

[0013] Further, the output end of the water pump is fixedly communicated with a drain pipe, and one end of the drain pipe penetrates through the purification tank and is fixedly communicated with the sprayer. A water injection pipe is fixedly communicated with the water purification tank.

[0014] III) Beneficial effects:

[0015] Compared with the prior art, the spray painting waste gas recycling treatment device has the following beneficial effects:

[0016] The utility model adds a dispersant into a dispersion tank and fully mixes it by using a stirring assembly, so that the paint liquid in the wastewater loses its viscosity, which is convenient for subsequent treatment. Then, a flocculant is added into the precipitation tank and stirred by a second stirring assembly to promote the paint liquid to flocculate into a mass, realizing the effective separation of the paint liquid. This not only improves the efficiency of wastewater treatment, but also realizes the recycling of the purified water through a filter and a water supply assembly, significantly reducing the consumption of water resources, lowering the operating cost, and at the same time reducing the impact on the environment. Description of the Drawings

[0017] Figure 1 is a perspective view of the utility model;

[0018] Figure 2 is a cross-sectional view of the utility model.

[0019] In the figure: 1, purification tank; 2, dispersion tank; 3, clean water tank; 4, precipitation tank; 5, intake pipe; 6, exhaust pipe; 7, water pump; 8, drain pipe; 9, sprayer; 10, main water inlet pipe; 11, first water inlet pipe; 12, first valve; 13, second water inlet pipe; 14, filter; 15, first delivery pipe; 16, second delivery pipe; 17, second valve; 18, first chemical addition pipe; 19, driven shaft; 20, first stirring blade; 21, motor; 22, driving shaft; 23, transmission wheel; 24, second stirring blade; 25, drainage plate; 26, second chemical addition pipe; 27, water injection pipe; 28, sewage discharge pipe. Detailed Embodiment

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0021] As Figure 1-2 shown, the present utility model provides a technical solution: a paint spraying waste gas recycling treatment device, including a purification tank 1, a dispersion tank 2, a clean water tank 3 and a precipitation tank 4. An intake pipe 5 and an exhaust pipe 6 are fixedly communicated with the purification tank 1. The intake pipe 5 serves as the waste gas inlet and horizontally enters the inside of the purification tank 1. The exhaust pipe 6 is the outlet for the purified gas. A sprayer 9 is arranged inside the purification tank 1. The bottom surface of the purification tank 1 is fixedly communicated with a first delivery pipe 15, and the bottom end of the first delivery pipe 15 is fixedly communicated with the dispersion tank 2, so as to convey the water sprayed by the sprayer 9 to the inside of the dispersion tank 2 through the first delivery pipe 15 in a certain amount. A liquid level gauge can be designed inside the purification tank 1, and the liquid in the purification tank 1 will flow into the dispersion tank 2 only when it reaches a certain amount.

[0022] A first chemical adding pipe 18 is fixedly connected to the dispersion tank 2. A dispersant can be added into the dispersion tank 2 through the first chemical adding pipe 18. A first stirring assembly is arranged in the dispersion tank 2. The first stirring assembly includes a driven shaft 19 rotatably connected to the dispersion tank 2. A first stirring blade 20 is fixedly connected to the driven shaft 19, and the first stirring blade 20 is located inside the dispersion tank 2. Second valves 17 are installed on both the first conveying pipe 15 and the second conveying pipe 16. The driven shaft 19 is used to drive the first stirring blade 20 to rotate inside the dispersion tank 2, so as to stir and mix the wastewater and the dispersant, making the paint liquid in the wastewater lose its viscosity.

[0023] The bottom surface of the dispersion tank 2 is fixedly connected to a second conveying pipe 16. The bottom end of the second conveying pipe 16 is fixedly connected to the sedimentation tank 4. The dispersed liquid can be conveyed into the sedimentation tank 4 through the second conveying pipe 16 for further treatment. A second stirring assembly is arranged in the sedimentation tank 4, and the second stirring assembly is in transmission connection with the first stirring assembly. The second stirring assembly includes a motor 21 installed on the sedimentation tank 4. The output rotating shaft of the motor 21 is provided with a driving shaft 22. A second stirring blade 24 is fixedly connected to the driving shaft 22, and the second stirring blade 24 is located inside the sedimentation tank 4. Transmission wheels 23 are installed on both the driven shaft 19 and the second stirring blade 24, and the two transmission wheels 23 are connected by a belt. A second chemical adding pipe 26 is fixedly connected to the sedimentation tank 4. A drainage plate 25 is fixedly connected to the inner bottom wall of the sedimentation tank 4. A sewage discharge pipe 28 is fixedly connected to the sedimentation tank 4.

[0024] A flocculant is added into the liquid in the sedimentation tank 4 through the second chemical adding pipe 26. The output rotating shaft of the motor 21 is used to drive the driving shaft 22 to rotate, and the second stirring blade 24 stirs the liquid and the flocculant, making the paint liquid flocculate into clusters, so as to remove the paint liquid in the liquid. When the driving shaft 22 rotates, it can drive the driven shaft 19 through the transmission wheel 23, so that the driven shaft 19 and the driving shaft 22 rotate synchronously.

[0025] A water supply assembly for conveying the water in the water injection pipe 27 and the water in the water purification tank 3 to the sprayer 9 is arranged above the sedimentation tank 4. The water supply assembly includes a water pump 7 installed on the purification tank 1. The input end of the water pump 7 is fixedly connected to a main water inlet pipe 10. A first water inlet pipe 11 and a second water inlet pipe 13 are installed on the main water inlet pipe 10. The bottom end of the first water inlet pipe 11 penetrates through the water purification tank 3 and extends to the inside of the water purification tank 3. The bottom end of the second water inlet pipe 13 penetrates through the sedimentation tank 4 and is provided with a filter 14. First valves 12 are installed on both the first water inlet pipe 11 and the second water inlet pipe 13.

[0026] Since the main water inlet pipe 10 is connected to the first water inlet pipe 11 and the second water inlet pipe 13, the first water inlet pipe 11 and the second water inlet pipe 13 can be controlled respectively by two first valves 12, so that the water in the clean water tank 3 or the water in the sedimentation tank 4 can be controlled to be transported into the main water inlet pipe 10, and the purified water in the sedimentation tank 4 can be reused, saving water resources.

[0027] The output end of the water pump 7 is fixedly connected to a drain pipe 8, and one end of the drain pipe 8 penetrates through the purification tank 1 and is fixedly connected to the sprayer 9. A water injection pipe 27 is fixedly connected to the clean water tank 3. The liquid is pressurized by the water pump 7 and the drain pipe 8 and then transported into the sprayer 9 and sprayed out in a mist shape, so as to spray and purify the waste gas entering the purification tank 1 through the intake pipe 5.

[0028] It should be noted that in this text, the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation to the present invention; the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "fixedly installed", "installed", "connected", "connected" should be understood in a broad sense. For example, "installed" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a mechanical connection or an electrical connection; "connected" can be a direct connection, an indirect connection through an intermediate medium, or an internal connection between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0029] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A paint spraying waste gas circulation treatment device, characterized in that: The invention comprises a purification box (1), a dispersion box (2), a clean water tank (3) and a sedimentation box (4); the purification box (1) is fixedly connected with an air intake pipe (5) and an exhaust pipe (6); a sprayer (9) is arranged in the purification box (1); a first conveying pipe (15) is fixedly connected to the bottom surface of the purification box (1); and the bottom end of the first conveying pipe (15) is fixedly connected to the dispersion box (2); a first dosing pipe (18) is fixedly connected to the dispersion box (2); and a first stirring pipe (18) is arranged in the dispersion box (2). The bottom surface of the dispersion box (2) is fixedly connected to a second delivery pipe (16), the bottom end of the second delivery pipe (16) is fixedly connected to the sedimentation box (4), a second stirring component is arranged in the sedimentation box (4), and the second stirring component is transmission-connected to the first stirring component, a second dosing pipe (26) is fixedly connected to the sedimentation box (4), and a water supply component for conveying water in a water injection pipe (27) and water in a clean water tank (3) to a sprayer (9) is arranged above the sedimentation box (4).

2. A paint spraying waste gas recycling treatment device according to claim 1, characterized in that: The first stirring assembly comprises a driven shaft (19) rotatably connected to a dispersion box (2), a first stirring blade (20) being fixedly connected to the driven shaft (19), and the first stirring blade (20) being located in the dispersion box (2), and a second valve (17) being installed on both the first delivery pipe (15) and the second delivery pipe (16).

3. A paint spraying waste gas recycling treatment device according to claim 2, characterized in that: The second stirring assembly comprises a motor (21) mounted on the sedimentation tank (4); a driving shaft (22) is mounted on the output shaft of the motor (21); a second stirring blade (24) is fixedly connected to the driving shaft (22); and the second stirring blade (24) is located in the sedimentation tank (4); a transmission wheel (23) is mounted on the driven shaft (19) and the second stirring blade (24); and the two transmission wheels (23) are connected via a belt drive.

4. A paint spraying waste gas recycling treatment device according to claim 1, characterized in that: The inner bottom wall of the sedimentation box (4) is fixedly connected with a drainage plate (25), and the sedimentation box (4) is fixedly connected with a sewage discharge pipe (28).

5. The paint spraying waste gas recycling treatment device according to claim 1 is characterized in that: The water supply assembly comprises a water pump (7) installed on the purification tank (1); the input end of the water pump (7) is fixedly connected to a water inlet pipe (10); a first water inlet pipe (11) and a second water inlet pipe (13) are installed on the water inlet pipe (10); the bottom end of the first water inlet pipe (11) passes through the purification tank (3) and extends to the interior of the purification tank (3); the bottom end of the second water inlet pipe (13) passes through the sedimentation tank (4) and is installed with a filter (14); and a first valve (12) is installed on both the first water inlet pipe (11) and the second water inlet pipe (13).

6. A paint spraying waste gas recycling treatment device according to claim 5, characterized in that: The output end of the water pump (7) is fixedly connected to a drainage pipe (8), and one end of the drainage pipe (8) passes through the purification box (1) and is fixedly connected to the sprayer (9). The clean water tank (3) is fixedly connected to a water injection pipe (27).

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