Filtering device for treating VOCs (volatile organic compounds) in paint spraying waste gas

Abstract

The utility model relates to the technical field of paint spraying waste gas treatment filtering devices, and discloses a filtering device for paint spraying waste gas VOCs treatment, which comprises a waste gas treatment box, a gas inlet pipe and a spraying box, the gas inlet pipe is communicated with the left side of the waste gas treatment box, the spraying box is embedded in the top of the inner cavity of the waste gas treatment box, and the right side of the waste gas treatment box is communicated with a gas outlet mechanism; the gas outlet mechanism comprises a gas outlet pipe, the gas outlet pipe is communicated with the waste gas treatment box, a filter element is slidably connected in the gas outlet pipe, square plates are fixedly connected to two ends in the gas outlet pipe, springs are connected between the square plates and the filter element, a [-shaped plate is fixedly connected to the right side of the filter element, and a long plate is fixedly connected to the left side of the [-shaped plate. According to the filtering device for treating the VOCs in the paint spraying waste gas, the spring, the square plate, the [-shaped plate and the long plate which are additionally arranged are matched to drive the filter element to move, so that the cleaning effect on the filter element is greatly improved, and the filter element is prevented from being frequently replaced and maintained.

Description

Technical Field

[0001] The utility model relates to the technical field of spray painting waste gas treatment and filtration devices, and particularly relates to a filtration device for treating VOCs in spray painting waste gas. Background Art

[0002] Spray painting waste gas refers to the harmful gas emissions generated during the spray painting process. These harmful gases include volatile organic compounds (VOCs) and other toxic substances, which are harmful to human health and the environment. When treating spray painting waste gas, a spray system is required to purify the harmful particles in the waste gas. However, when the treated waste gas passes through the filter element, the filter element may be blocked. At the same time, the water outlet of the spray system is fixed, which may reduce the contact range with the waste gas. The exhaust port of the waste gas filtration device may also be blocked by the waste gas, which may contaminate the internal filter element, thereby reducing the overall treatment effect of the device on spray painting waste gas. Content of the Utility Model

[0003] (1) Technical Problems to be Solved

[0004] In view of the deficiencies of the prior art, the utility model provides a filtration device for treating VOCs in spray painting waste gas to solve the technical problems that when the waste gas passes through the filter element, the filter element may be blocked, the water outlet of the spray system is fixed, which may reduce the contact range with the waste gas, and the exhaust port of the waste gas filtration device may also be blocked by the waste gas, which may contaminate the internal filter element, thereby reducing the overall treatment effect of the device on spray painting waste gas.

[0005] (2) Technical Solutions

[0006] To achieve the above object, the utility model provides the following technical solutions: A filtration device for treating VOCs in spray painting waste gas, comprising: a waste gas treatment box, an air inlet pipe, and a spray box. The air inlet pipe is connected to the left side of the waste gas treatment box. The spray box is embedded in the top of the inner cavity of the waste gas treatment box. The right side of the waste gas treatment box is connected to an air outlet mechanism. The air outlet mechanism includes an air outlet pipe, the air outlet pipe is connected to the waste gas treatment box, a filter element is slidably connected inside the air outlet pipe, square plates are fixedly connected to both ends inside the air outlet pipe, springs are connected between the square plates and the filter element, a C-shaped plate is fixedly connected to the right side of the filter element, and a long plate is fixedly connected to the left side of the C-shaped plate.

[0007] A spray mechanism is installed inside the spray box. The spray mechanism includes a motor, the motor is installed on the top of the waste gas treatment box through a connecting frame, the output end of the motor is connected to a hollow column, blades are equidistantly connected to the outside of the hollow column, a water pump is embedded in the middle of the hollow column, a cam is connected to the lower part of the outside of the hollow column, the bottom of the hollow column is communicated with a hollow plate, and nozzles are equidistantly communicated with the bottom of the hollow plate.

[0008] Preferably, spherical bearings are sleeved at both outer ends of the hollow column, and the spherical bearings are respectively embedded in the top and bottom of the spray box. The spherical bearings can support the hollow column.

[0009] Preferably, a glass observation plate is embedded in the front of the waste gas treatment box, and a sealing ring is installed at the junction of the glass observation plate and the waste gas treatment box. The glass observation plate can facilitate the staff to observe the operation status inside the waste gas treatment box.

[0010] Preferably, a slope is fixedly connected to the inner bottom of the waste gas treatment box, and a waste water pipe is communicated with the bottom right of the waste gas treatment box. A butterfly valve is installed inside the waste water pipe. The slope can divert the waste water at the inner bottom of the waste gas treatment box, and the waste water pipe and the butterfly valve can cooperate to discharge the waste water.

[0011] Preferably, a horizontal groove is opened at the top of the air outlet pipe, and the horizontal groove is slidably connected with the U-shaped plate. The horizontal groove facilitates the movement of the U-shaped plate.

[0012] Preferably, the air outlet pipe is connected to the waste gas treatment box by bolts, and the left side of the air outlet pipe is inclined. The inclined design of the air outlet pipe prevents the spray water from discharging through the air outlet pipe.

[0013] (III) Beneficial Effects

[0014] Compared with the prior art, the present utility model provides a filtering device for treating paint spraying waste gas VOCs, which has the following beneficial effects:

[0015] For the filtering device for treating paint spraying waste gas VOCs, when the paint spraying waste gas is purified and filtered through spraying, the added spraying mechanism automatically rotates and stirs the spraying water, thereby increasing the combination effect with the waste gas, improving the filtering quality of the waste gas. At the same time, the centrifugal force and the bent design of the air outlet pipe are used to clean the air outlet pipe and the filter element, preventing the particles in the waste gas from adhering to the outside of the air outlet pipe and the filter element. When the filter element filters the waste gas, the cooperation of the added spring, square plate, U-shaped plate and long plate drives the filter element to move, thereby greatly improving the cleaning effect of the filter element and avoiding the need for frequent replacement and maintenance of the filter element. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a front cross-sectional view of the present utility model;

[0017] Figure 2 is a front view of the present utility model;

[0018] Figure 3 is a front cross-sectional view of the spray box of the present utility model;

[0019] Figure 4Front view schematic diagram of the spray mechanism of the present utility model;

[0020] Figure 5 Front view schematic diagram of the air outlet mechanism of the present utility model.

[0021] In the figure: 1. Waste gas treatment tank; 11. Slope; 12. Waste water pipe; 13. Butterfly valve; 2. Intake pipe; 3. Glass observation plate; 4. Air outlet mechanism; 41. Air outlet pipe; 411. Horizontal groove; 42. Filter element; 43. Spring; 44. Square plate; 45. C-shaped plate; 46. Long plate; 5. Spray tank; 6. Spray mechanism; 61. Motor; 62. Hollow column; 63. Blade; 64. Water pump; 65. Cam; 66. Hollow plate; 67. Sprinkler head; 68. Spherical bearing. Specific implementation mode

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying 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.

[0023] The present utility model provides a technical solution. Please refer to Figure 1 , Figure 2 and Figure 3 , a filtering device for treating spray painting waste gas VOCs, including: a waste gas treatment tank 1, an intake pipe 2 and a spray tank 5. This solution is a structural improvement of the non-electronic component part based on the existing spray painting waste gas purification and filtering equipment. Among them, the waste gas treatment tank 1, the intake pipe 2 and the spray tank 5 are the common spray painting waste gas purification and filtering equipment that has been popularized in the existing technology.

[0024] The intake pipe 2 facilitates the discharge of spray painting waste gas into the interior of the waste gas treatment tank 1. The spray tank 5 can filter and purify the waste gas by spraying. A water injection port is provided at the top of the spray tank 5, through which water source and medicine can be discharged into the interior of the spray tank 5. A slope 11 is fixedly connected to the inner bottom of the waste gas treatment tank 1. A waste water pipe 12 is communicated with the right bottom of the waste gas treatment tank 1. A butterfly valve 13 is installed inside the waste water pipe 12. The slope 11 can divert the waste water at the inner bottom of the waste gas treatment tank 1, and the waste water pipe 12 and the butterfly valve 13 cooperate to discharge the waste water.

[0025] The intake pipe 2 is communicated with the left side of the waste gas treatment tank 1. A glass observation plate 3 is embedded in the front of the waste gas treatment tank 1. A sealing ring is installed at the junction of the glass observation plate 3 and the waste gas treatment tank 1. The glass observation plate 3 can facilitate the staff to observe the operation status inside the waste gas treatment tank 1. The spray tank 5 is embedded in the inner cavity top of the waste gas treatment tank 1.

[0026] Please refer to Figure 5 , an air outlet mechanism 4 is connected to the right side of the waste gas treatment box 1. The air outlet mechanism 4 includes an air outlet pipe 41, and the air outlet pipe 41 can discharge the purified waste gas. A horizontal groove 411 is opened at the top of the air outlet pipe 41, and the horizontal groove 411 is slidably connected to the U-shaped plate 45. The horizontal groove 411 facilitates the movement of the U-shaped plate 45. The air outlet pipe 41 is connected to the waste gas treatment box 1 by bolts. The left side of the air outlet pipe 41 is inclined, and the inclined design of the air outlet pipe 41 prevents the sprayed water from being discharged through the air outlet pipe 41.

[0027] The air outlet pipe 41 is communicated with the waste gas treatment box 1. A filter element 42 is slidably connected inside the air outlet pipe 41, and the filter element 42 can filter and discharge the waste gas. Square plates 44 are fixedly connected to both ends inside the air outlet pipe 41. Springs 43 are connected between the square plates 44 and the filter element 42. The springs 43 cooperate with the square plates 44 to enable the filter element 42 to return to its original position after the movement is completed. A U-shaped plate 45 is fixedly connected to the right side of the filter element 42. The U-shaped plate 45 can be driven by the cam 65 in cooperation with the long plate 46. A long plate 46 is fixedly connected to the left side of the U-shaped plate 45, and the diameter of the long plate 46 is greater than the diameter of the cam 65.

[0028] Please refer to Figure 4 , a spraying mechanism 6 is installed inside the spraying box 5. The spraying mechanism 6 includes a motor 61, and the motor 61 can drive the hollow column 62. The motor 61 is installed on the top of the waste gas treatment box 1 through a connecting frame. The output end of the motor 61 is connected to a hollow column 62, and the hollow column 62 can drive the blades 63 to rotate and stir the water source. Spherical bearings 68 are sleeved on both outer ends of the hollow column 62.

[0029] The spherical bearings 68 are respectively embedded in the top and bottom of the spraying box 5. The spherical bearings 68 can support the hollow column 62. Blades 63 are equally spaced and connected to the outside of the hollow column 62. A water pump 64 is embedded in the middle of the hollow column 62. The water outlet of the water pump 64 is communicated with the bottom of the hollow column 62. The water inlet of the water pump 64 is opened outside the water pump 64, and then the water source inside the spraying box 5 can be sucked in and discharged. A cam 65 is connected to the lower part of the outside of the hollow column 62. The bottom of the hollow column 62 is communicated with a hollow plate 66. Nozzles 67 are equally spaced and communicated with the bottom of the hollow plate 66. The nozzles 67 cooperate with the hollow plate 66 to discharge the water source in a rotating manner.

[0030] In this solution, the spray painting waste gas pipeline is first connected to the intake pipe 2. The spray water source and chemicals for purifying the waste gas are poured into the interior of the spray box 5. The motor 61 and the water pump 64 are started. The motor 61 drives the hollow column 62 and the blades 63 to rotate, mixing the water source and the chemicals evenly. The water pump 64 sucks in the water source and atomizes and discharges it through the hollow plate 66 and the nozzles 67. At the same time, when the nozzles 67 atomize and drain water, they will also be driven by the hollow column 62 to rotate, thereby increasing the spraying range of the water source and improving the combined purification effect with the waste gas.

[0031] The waste gas is discharged into the interior of the waste gas treatment box 1. After being purified by the spray water, it is then discharged through the outlet pipe 41 and the filter element 42. At the same time, the rotating nozzles 67 will, through centrifugal force, throw the water source into the interior of the outlet pipe 41 to clean the outlet pipe 41 and the filter element 42, and the water thrown in is collected back into the interior of the waste gas treatment box 1 through the curved design of the outlet pipe 41.

[0032] When the water pump 64 rotates, it drives the cam 65 to move, and then drives the long plate 46 to move. Through the U-shaped plate 45, it drives the filter element 42 to move. After the movement of the filter element 42 is completed, it returns to its original position through the spring 43 and the square plate 44. In this way, the particles that may adhere to the outside of the filter element 42 are discharged reciprocally.

[0033] When the spray painting waste gas passes through spray purification and filtration, the added spray mechanism 6 automatically rotates and stirs the spray water, thereby increasing the combined effect with the waste gas and improving the filtration quality of the waste gas. At the same time, through centrifugal force and the curved design of the outlet pipe 41, the outlet pipe 41 and the filter element 42 are cleaned, preventing the particles in the waste gas from adhering to the outside of the outlet pipe 41 and the filter element 42. At the same time, when the filter element 42 filters the waste gas, through the cooperation of the added spring 43, square plate 44, U-shaped plate 45 and long plate 46, the filter element 42 is driven to move, thereby greatly improving the cleaning effect of the filter element 42 and avoiding the need to frequently replace and maintain the filter element 42.

[0034] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "including", "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A filter device for treating VOCs in paint exhaust gas, comprising: An exhaust gas treatment box (1), an intake pipe (2), and a spray box (5). The intake pipe (2) is connected to the left side of the exhaust gas treatment box (1), and the spray box (5) is embedded in the top of the inner cavity of the exhaust gas treatment box (1). It is characterized in that: a gas outlet mechanism (4) is connected to the right side of the exhaust gas treatment box (1). The gas outlet mechanism (4) includes an outlet pipe (41), the outlet pipe (41) is connected to the exhaust gas treatment box (1), a filter element (42) is slidably connected inside the outlet pipe (41), square plates (44) are fixedly connected to both ends inside the outlet pipe (41), a spring (43) is connected between the square plate (44) and the filter element (42), a U-shaped plate (45) is fixedly connected to the right side of the filter element (42), and a long plate (46) is fixedly connected to the left side of the U-shaped plate (45); A spray mechanism (6) is installed inside the spray box (5). The spray mechanism (6) includes a motor (61), the motor (61) is installed on the top of the exhaust gas treatment box (1) through a connecting bracket, an output end of the motor (61) is connected to a hollow column (62), blades (63) are connected to the outside of the hollow column (62) at equal intervals, a water pump (64) is embedded in the middle of the hollow column (62), a cam (65) is connected to the lower part of the outside of the hollow column (62), a hollow plate (66) is connected to the bottom of the hollow column (62), and nozzles (67) are connected to the bottom of the hollow plate (66) at equal intervals.

2. A filter device for treating VOCs in paint spraying exhaust gas according to claim 1, characterized in that: Spherical bearings (68) are sleeved on both ends of the outside of the hollow column (62), and the spherical bearings (68) are respectively embedded in the top and bottom of the spray box (5).

3. A filter device for treating VOCs in paint spraying exhaust gas according to claim 1, characterized in that: A glass observation plate (3) is embedded in the front of the exhaust gas treatment box (1), and a sealing ring is installed at the junction of the glass observation plate (3) and the exhaust gas treatment box (1).

4. A filter device for treating VOCs in paint spraying exhaust gas according to claim 1, characterized in that: A slope (11) is fixedly connected to the inner bottom of the exhaust gas treatment box (1), a waste water pipe (12) is connected to the right bottom of the exhaust gas treatment box (1), and a butterfly valve (13) is installed inside the waste water pipe (12).

5. A filter device for treating VOCs in paint spraying exhaust gas according to claim 1, characterized in that: A horizontal groove (411) is opened at the top of the outlet pipe (41), and the horizontal groove (411) is slidably connected to the U-shaped plate (45).

6. A filter device for treating VOCs in paint spraying exhaust gas according to claim 1, characterized in that: The outlet pipe (41) is connected to the exhaust gas treatment box (1) by bolts, and the left side of the outlet pipe (41) is designed to be inclined.

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