Waste gas treatment device for paint spray booth

Abstract

The utility model belongs to the technical field of paint spray booth waste gas treatment, and particularly relates to a paint spray booth waste gas treatment device which comprises a waste gas treatment water spraying box, a water spraying head is installed in the waste gas treatment water spraying box, the top of the water spraying head is connected with a water pump, and the side of the water pump is communicated with a circulation pipe. A water quality detection assembly is arranged on the outer wall of the circulation pipe, the bottom of the circulation pipe communicates with a water tank, the side of the water tank communicates with a water discharging pipe, a water pipe circulation control assembly is arranged on the outer wall of the water discharging pipe, and a waste gas treatment filtering assembly is installed on one side of the waste gas treatment water spraying box. The other side of the waste gas treatment water spraying box is connected with an activated carbon adsorption tower; the water quality detection assembly comprises a water quality monitoring sensor; according to the water spraying device, water used by a water spraying method can be recycled conveniently, meanwhile, the water quality monitoring sensor is arranged so that water quality can be monitored in real time, the recycled water can be replaced conveniently, and the water spraying device is more practical.

Description

Technical Field

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

[0002] In the process of painting in the paint room, it is inevitable to produce waste gas, which not only pollutes the environment but also harms human health, so it is essential to treat these waste gases. There are mainly the following ways to treat waste gas in the paint room: isolation method, water spray method, combustion method, absorption method, condensation method, plasma low-temperature catalytic oxidation method, and adsorption method. Among them, the most commonly used are water spray method and adsorption method.

[0003] In Chinese patent CN206676188U, the utility model discloses a waste gas treatment device for a paint spraying room, including a paint spraying room, a water inlet, a spray room, a nozzle, a waste gas outlet, a filter, an activated carbon adsorption tower, an exhaust pipe, an induced draft fan, a water outlet, an exhaust pipe, a mesh plate, a waste gas inlet, a filter cotton, a collection pipe and an opening. The beneficial effect of the utility model is: in order to prevent the paint mist from spreading outward, the utility model understands that the amount of paint residue generated during the normal working painting process is very small, mainly organic waste gas, so the bottom suction is adopted, and the bottom uses a collection pipe to collect the waste gas, and the upper part is made of a mesh plate, which is evenly divided into four sections, and holes are evenly opened above each section. Two pipes have a total of eight holes, so as to ensure that the waste gas generated during the painting process can be well absorbed and treated, a part of the waste gas is sprayed through the spray room, and finally the waste gas is treated by the activated carbon adsorption tower and discharged from the exhaust pipe, which has good economic and social benefits and is suitable for promotion and use.

[0004] Existing waste gas treatment devices in paint spraying rooms have problems. Since the waste gas from paint spraying is generated during the spraying process, the liquid paint forms atomized dust particles and volatile organic waste gases such as triphenyl under the action of air pressure. The particle size is small and the concentration is high. If it is not pre-treated, it will quickly clog the micropores of the activated carbon and make the adsorption effect of the activated carbon ineffective. Existing devices usually use water spray and adsorption methods. Since water is easier to obtain, the water in the existing devices cannot be recycled, resulting in a large amount of water resources being wasted, making the device lack practicality when in use.

[0005] Therefore, in view of the above problems, a paint spraying room exhaust gas treatment device is proposed. Utility Model Content

[0006] In order to make up for the shortcomings of the existing technology, the problem of paint exhaust gas generated in the spraying process, in which liquid paint forms atomized dust particles and volatile organic waste gases such as triphenyl under the action of air pressure, has been solved. The particle size is small and the concentration is high. If it is not pretreated, it will quickly clog the micropores of the activated carbon and make the activated carbon adsorption effect ineffective. The existing devices usually use water spray and adsorption methods. Since water is easier to obtain, the water in the existing devices cannot be recycled, resulting in a large amount of water resources being wasted, making the device lack practicality when used.

[0007] The utility model solves the technical problem by adopting the following technical solution: the utility model discloses a waste gas treatment device for a spray booth, comprising a waste gas treatment water shower box, a water shower head is installed inside the waste gas treatment water shower box, a water pump is connected to the top of the water shower head, and a flow pipe is connected to the side of the water pump, a water quality detection component is arranged on the outer wall of the flow pipe, and a water tank is connected to the bottom of the flow pipe, a drain pipe is connected to the side of the water tank, and a water pipe flow control component is arranged on the outer wall of the drain pipe, a waste gas treatment filter component is installed on one side of the waste gas treatment water shower box, and an activated carbon adsorption tower is connected to the other side of the waste gas treatment water shower box; the water quality detection component comprises a water quality monitoring sensor, a processor is electrically connected to the side of the water quality monitoring sensor, and a telescopic shell is electrically connected to the outer wall of the processor, and a telescopic inner core is slidably connected to the inside of the telescopic shell, a power supply is arranged on the side of the telescopic inner core, a rotating sheet is rotatably connected to the outer wall of the power supply, and a control power supply is connected to the bottom of the rotating sheet.

[0008] Preferably, the telescopic inner core forms a sliding structure through the telescopic outer shell and the rotating piece, and the rotating piece forms a rotating structure through the power supply and the control power supply.

[0009] Preferably, the water pipe flow control assembly comprises a fixed disc, the interior of the fixed disc is rotatably connected to a rotating rod, the top of the rotating rod is fixedly connected to a control handle, and the bottom of the rotating rod is fixedly connected to a blocking plate, the top of the fixed disc is fixedly connected to an open position indicator, and the side of the open position indicator is connected to a closed position indicator.

[0010] Preferably, the blocking plate forms a rotating structure through a rotating rod, a control handle and a drain pipe, and the diameter of the blocking plate is consistent with the outer diameter of the drain pipe.

[0011] Preferably, the exhaust gas treatment filter assembly includes a filter box, the top of the filter box is connected to an air inlet pipe, and the interior of the filter box is connected to a filter screen, and the side of the filter screen is fixedly connected to a connecting plate, the outer wall of the connecting plate is fixedly connected to a first pin, and the bottom of the first pin is fixedly connected to a spring, and the bottom of the spring is fixedly connected to a second pin.

[0012] Preferably, the connecting plate forms a detachable structure with the filter box through the first bayonet, the second bayonet and the filter box, and the first bayonet forms an elastic structure with the second bayonet through a spring.

[0013] The utility model is beneficial in that:

[0014] 1. The utility model is provided with a water quality detection component, and a water quality monitoring sensor is provided to monitor the water quality in real time. When the water quality monitoring sensor detects that there are too many harmful substances in the water, the processor analyzes and processes the received data, thereby controlling the water pump to be turned off. At this time, the water flow will stop flowing. At this time, the water can be replaced to ensure water saving while ensuring effective treatment of exhaust gas, making the device more practical when in use;

[0015] 2. The utility model is provided with a water pipe flow control assembly. When the water needs to be replaced, the control handle can be turned, and the blocking plate will rotate accordingly. When the control handle points to the open position indicator, the water flow will be opened to the maximum, so that the water in the water tank is discharged and replaced. After the replacement is completed, the control handle is turned to point to the closed position indicator;

[0016] 3. The utility model is provided with an exhaust gas treatment filter assembly. By providing a filter screen, the exhaust gas first passes through the filter screen to remove a portion of dust particles, and then enters the exhaust gas treatment water shower box for secondary removal of these atomized dust particles, which greatly reduces the entry of the dust particles into the activated carbon adsorption tower, avoids clogging the micropores of the activated carbon, and renders the activated carbon adsorption effect ineffective. At the same time, the filter screen can be fixed and disassembled by the first bayonet and the second bayonet, which is convenient for installation or replacement and cleaning of the filter screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the overall cross-section of the utility model;

[0019] Figure 2 It is a three-dimensional structural schematic diagram of the water quality detection component of the utility model;

[0020] Figure 3 It is a three-dimensional structural schematic diagram of the water pipe flow control assembly of the utility model;

[0021] Figure 4It is a three-dimensional structural schematic diagram of the waste gas treatment filter assembly of the utility model;

[0022] Figure 5 for Figure 4 Schematic diagram of the enlarged three-dimensional structure at point A in the middle.

[0023] In the figure: 1. waste gas treatment water shower box; 2. water shower head; 3. water pump; 4. circulation pipe; 5. water quality detection component; 501. water quality monitoring sensor; 502. processor; 503. telescopic shell; 504. telescopic inner core; 505. power supply; 506. rotating plate; 507. control power supply; 6. water tank; 7. drain pipe; 8. water pipe circulation control component; 801. fixed disc; 802. rotating rod; 803. control handle; 804. blocking plate; 805. open position indicator; 806. closed position indicator; 9. waste gas treatment filter component; 901. filter box; 902. air inlet pipe; 903. filter net; 904. connecting plate; 905. first bayonet; 906. spring; 907. second bayonet; 10. activated carbon adsorption tower. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Embodiment 1

[0026] See also Figure 1 and Figure 2As shown, a waste gas treatment device for a paint spraying room includes a waste gas treatment water shower box 1, a water shower head 2 is installed inside the waste gas treatment water shower box 1, and a water pump 3 is connected to the top of the water shower head 2, and a flow pipe 4 is connected to the side of the water pump 3, a water quality detection component 5 is arranged on the outer wall of the flow pipe 4, and a water tank 6 is connected to the bottom of the flow pipe 4, a drain pipe 7 is connected to the side of the water tank 6, and a water pipe flow control component 8 is arranged on the outer wall of the drain pipe 7, a waste gas treatment filter component 9 is installed on one side of the waste gas treatment water shower box 1, and an activated carbon adsorption tower 10 is connected to the other side of the waste gas treatment water shower box 1; the water quality detection component 5 includes a water quality monitoring sensor 501, a processor 502, a telescopic shell 503, a telescopic inner core 504, and a power supply 50 5. The rotating piece 506 and the control power supply 507 are provided with a water quality monitoring sensor 501 so as to monitor the water quality in real time. The telescopic inner core 504 forms a sliding structure with the rotating piece 506 through the telescopic outer shell 503, and the rotating piece 506 forms a rotating structure with the control power supply 507 through the power supply 505; the water quality monitoring sensor 501 is provided so as to monitor the water quality in real time. When the water quality monitoring sensor 501 detects that there are too many harmful substances in the water, the processor 502 analyzes and processes the received data, thereby controlling the water pump 3 to be turned off. At this time, the water flow will stop flowing. At this time, the water can be replaced to ensure water saving while ensuring effective treatment of exhaust gas, so that the device is more practical when in use.

[0027] See also Figure 1 and Figure 3 As shown, a waste gas treatment device for a paint spraying room, a water pipe flow control component 8, includes a fixed disc 801, a rotating rod 802, a control handle 803, a blocking plate 804, an open position indicator 805, and a closed position indicator 806, which are convenient for replacing recycled water. The blocking plate 804 forms a rotating structure with the drain pipe 7 through the rotating rod 802, the control handle 803, and the diameter of the blocking plate 804 is consistent with the outer diameter of the drain pipe 7; when the water needs to be replaced, the control handle 803 can be rotated, and the blocking plate 804 will rotate accordingly. When the control handle 803 points to the open position indicator 805, the water flow will be opened to the maximum, so that the water in the water tank 6 is discharged and replaced. After the replacement is completed, the control handle 803 is rotated to point to the closed position indicator 806.

[0028] See also Figure 1 , Figure 4 and Figure 5As shown, a waste gas treatment device for a paint spraying room, a waste gas treatment filter assembly 9, including a filter box 901, an air inlet pipe 902, a filter screen 903, a connecting plate 904, a first bayonet 905, a spring 906, and a second bayonet 907, is provided with a filter screen 903, the waste gas first passes through the filter screen 903 to remove a part of the dust particles, the connecting plate 904 forms a detachable structure with the filter box 901 through the first bayonet 905 and the second bayonet 907, and the first bayonet 905 is connected to the second bayonet through the spring 906. Pin 907 forms an elastic structure; by providing a filter screen 903, the exhaust gas first passes through the filter screen 903 to remove a portion of dust particles, and then enters the exhaust gas treatment water shower box 1 for secondary removal of these atomized dust particles, which greatly reduces the entry of the dust particles into the activated carbon adsorption tower 10, avoids clogging the micropores of the activated carbon, and renders the activated carbon adsorption effect ineffective. At the same time, the filter screen 903 can be fixed and disassembled by the first pin 905 and the second pin 907, which is convenient for installing or replacing and cleaning the filter screen 903.

[0029] Working principle: First, the filter screen 903 is placed in the filter box 901 through the connecting plate 904. At this time, the first bayonet 905 and the second bayonet 907 on the side of the connecting plate 904 will be inserted into the ears on the side of the filter box 901. When inserted, the first bayonet 905 and the second bayonet 907 will first squeeze the spring 906, and then the elastic force of the spring 906 will make the first bayonet 905 and the second bayonet 907 open, so as to fix the connecting plate 904. At this time, the exhaust gas will first enter the filter box 901 through the intake pipe 902 The exhaust gas will then pass through the filter screen 903 in the filter box 901 to remove some dust particles in the exhaust gas. The exhaust gas with preliminary removal of dust particles will enter the exhaust gas treatment water shower box 1 through the exhaust hole on the side of the filter box 901. After water is sprayed on the exhaust gas, water-soluble or large particles will settle, thereby achieving the purpose of separating pollutants from clean gas; then, the sprayed water will first pass through the water tank 6 under the operation of the water pump 3, and then will be detected by the water quality monitoring sensor 501, and finally sprayed through the water shower head 2, thereby achieving water circulation;

[0030] Next, the water quality monitoring sensor 501 will monitor the water quality changes in real time. The ion concentration difference between the internal electrode liquid of the water quality monitoring sensor 501 and the sample will generate an electrochemical voltage on both sides of the membrane of the working electrode. The voltage is led to the amplifier through the high-conductivity internal electrode, and the reference electrode is also led to the location of the amplifier. A calibration curve is obtained by detecting a standard solution of known ion concentration, thereby detecting the ion concentration in the sample. When the water quality monitoring sensor 501 transmits the detected data to the processor 502, when the value received by the processor 502 does not exceed the set value, the water pump 3 works normally at this time, and the water flow will be sprayed through the water shower head 2. The treated waste gas eventually enters the activated carbon adsorption tower 10, and the organic gas is adsorbed by the activated carbon in the bed. The activated carbon is suitable for large-flow and low-concentration organic waste gas. The activated carbon uses granular activated carbon, so it has high surface activated carbon and adsorption. Ability, the discharged low concentration organic gas is adsorbed on its active surface, and the exhaust gas is purified and finally discharged into the atmosphere through a pipeline to meet the emission standards; at this time, if the processor 502 senses that the water exceeds the set value, it will start to transmit in the form of an electrical signal, so that the telescopic inner core 504 extends from the telescopic outer shell 503, and presses against the rotating piece 506, so that the rotating piece 506 rotates around the power supply 505, and finally when the rotating piece 506 and the control power supply 507 are connected, the circuit is closed and the water pump 3 stops working; finally, hold the control handle 803 and rotate it. At this time, the control handle 803 will drive the rotating rod 802 and the blocking plate 804 to rotate. When the control handle 803 points to the open position indicator 805, the water flow will be opened to the maximum, thereby discharging and replacing the water in the water tank 6. After the replacement is completed, the control handle 803 is rotated to point to the closed position indicator 806.

[0031] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A paint spraying room exhaust gas treatment device, characterized in that: The invention comprises a waste gas treatment water shower box (1), wherein a water shower head (2) is installed inside the waste gas treatment water shower box (1), and a water pump (3) is connected to the top of the water shower head (2), and a flow pipe (4) is connected to the side of the water pump (3), and a water quality detection component (5) is arranged on the outer wall of the flow pipe (4), and a water tank (6) is connected to the bottom of the flow pipe (4), and a water discharge pipe (7) is connected to the side of the water tank (6), and a water pipe flow control component (8) is arranged on the outer wall of the water discharge pipe (7), and a waste gas treatment filter component (9) is installed on one side of the waste gas treatment water shower box (1), and an activated carbon adsorption tower (10) is connected to the other side of the waste gas treatment water shower box (1); The water quality detection component (5) comprises a water quality monitoring sensor (501), the side of the water quality monitoring sensor (501) is electrically connected to a processor (502), the outer wall of the processor (502) is electrically connected to a telescopic shell (503), and the interior of the telescopic shell (503) is slidably connected to a telescopic inner core (504), a power supply (505) is arranged on the side of the telescopic inner core (504), and the outer wall of the power supply (505) is rotatably connected to a rotating plate (506), and the bottom of the rotating plate (506) is connected to a control power supply (507).

2. A paint spraying room exhaust gas treatment device according to claim 1, characterized in that: The telescopic inner core (504) forms a sliding structure through the telescopic outer shell (503) and the rotating piece (506), and the rotating piece (506) forms a rotating structure through the power supply (505) and the control power supply (507).

3. A paint spraying room exhaust gas treatment device according to claim 1, characterized in that: The water pipe flow control assembly (8) comprises a fixed disc (801), the interior of the fixed disc (801) is rotatably connected to a rotating rod (802), the top of the rotating rod (802) is fixedly connected to a control handle (803), and the bottom of the rotating rod (802) is fixedly connected to a blocking plate (804), the top of the fixed disc (801) is fixedly connected to an open position indicator (805), and the side of the open position indicator (805) is connected to a closed position indicator (806).

4. A paint spraying room exhaust gas treatment device according to claim 3, characterized in that: The blocking plate (804) forms a rotating structure through the rotating rod (802), the control handle (803) and the water discharge pipe (7), and the diameter of the blocking plate (804) is consistent with the outer diameter of the water discharge pipe (7).

5. A paint spraying room exhaust gas treatment device according to claim 1, characterized in that: The exhaust gas treatment filter assembly (9) comprises a filter box (901), the top of the filter box (901) is connected to an air intake pipe (902), the interior of the filter box (901) is connected to a filter screen (903), and the side of the filter screen (903) is fixedly connected to a connecting plate (904), the outer wall of the connecting plate (904) is fixedly connected to a first bayonet (905), the bottom of the first bayonet (905) is fixedly connected to a spring (906), and the bottom of the spring (906) is fixedly connected to a second bayonet (907).

6. A paint spraying room exhaust gas treatment device according to claim 5, characterized in that: The connecting plate (904) forms a detachable structure with the filter box (901) through the first bayonet (905), the second bayonet (907), and the first bayonet (905) forms an elastic structure with the spring (906) and the second bayonet (907).

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