Waste gas treatment device based on chemical washing deodorization

Abstract

The utility model discloses a waste gas treatment device based on chemical washing deodorization, and relates to the technical field of waste gas treatment. The device comprises a raw material liquid storage box and three chemical washing liquid storage boxes which are arranged above the raw material liquid storage box and are used for containing low-concentration chemical washing liquid, middle-concentration chemical washing liquid and high-concentration chemical washing liquid, a spraying treatment box is arranged above each chemical washing liquid storage box, and a spraying component for spraying, washing and deodorizing waste gas is arranged on each spraying treatment box. And the spraying component comprises a second infusion pump, a second collecting plate, a liquid separation plate and a spray head. According to the utility model, the low, medium and high three-level concentration chemical washing liquid storage box and the matched spraying treatment box are arranged, and the real-time monitoring of the oxidation-reduction potential sensor and the gas concentration sensor is combined, so that the waste gas classification accurate treatment is realized; meanwhile, the liquid adding component and the stirring component ensure that the medicament concentration is stable, and the resource utilization rate is increased.

Description

Technical Field

[0001] This utility model relates to the field of waste gas treatment technology, specifically to a waste gas treatment device based on chemical washing and deodorization. Background Technology

[0002] In industrial production processes, exhaust gases often contain malodorous and harmful components, requiring chemical scrubbing for deodorization. Generally, chemical spraying is used to treat exhaust gases. However, single-concentration chemical scrubbing has limited effectiveness for high-concentration exhaust gases, and multi-stage treatment systems without intelligent control are prone to waste of chemicals or incomplete purification. Furthermore, traditional methods struggle to monitor scrubbing solution concentration and exhaust gas purification effectiveness in real time, leading to unstable operation or emissions exceeding standards.

[0003] Therefore, a waste gas treatment device based on chemical washing and deodorization is proposed. Utility Model Content

[0004] To address the problems existing in the prior art, this utility model provides a waste gas treatment device based on chemical washing and deodorization.

[0005] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0006] A waste gas treatment device based on chemical washing and deodorization includes a raw material liquid storage tank and three chemical washing liquid storage tanks above it, each containing low, medium, and high concentrations of chemical washing liquid. Each chemical washing liquid storage tank has a spray treatment tank above it, and each spray treatment tank is equipped with a spray component for washing and deodorizing the waste gas. The spray component includes a second pump, a second collecting plate, a distributing plate, and nozzles. Each chemical washing liquid storage tank is equipped with an oxidation-reduction potential sensor for real-time detection of the chemical washing liquid concentration. Each spray treatment tank is equipped with a gas concentration sensor for detecting the concentration of the treated waste gas. Each spray treatment tank has an exhaust pipe at its top. Adjacent spray treatment tanks are connected by a connecting pipe. The raw material liquid storage tank is equipped with a liquid replenishing component for automatically replenishing the chemical washing liquid inside the chemical washing liquid storage tank. The liquid replenishing component includes a first pump, a first collecting plate, a distributing pipe, and a first solenoid valve.

[0007] Furthermore, the input and output ends of the first liquid pump extend into the interior of the raw material liquid storage tank and the first collecting plate, respectively. Three liquid distribution pipes are provided, each extending into the interior of one of the chemical washing liquid storage tanks. Each liquid distribution pipe is equipped with a first solenoid valve.

[0008] Furthermore, the input and output ends of the second pump extend into the chemical detergent storage tank and the second collecting plate, respectively. Multiple distributing plates are provided, all of which are connected to the second collecting plate. The nozzles are evenly distributed on the distributing plates. The second pump is located at the top of the spray treatment tank. The second collecting plate, the distributing plates, and the nozzles are located inside the spray treatment tank.

[0009] Furthermore, a second solenoid valve is respectively installed on the exhaust pipe and the connecting pipe, and the input ends of the exhaust pipe and the connecting pipe are both located above the nozzle. The sensing probe of the gas concentration sensor is also located above the nozzle.

[0010] Furthermore, the interior of the chemical detergent storage tank is equipped with a stirring component for stirring the chemical detergent, the stirring component including a motor and a stirring rod connected to the main shaft end thereto.

[0011] Furthermore, an exhaust gas inlet pipe is installed on the spray treatment box above the storage tank containing the lowest concentration of the chemical detergent solution, and the exhaust gas enters the interior of the spray treatment box under the action of a pressurized pump.

[0012] The beneficial effects of this utility model are as follows:

[0013] 1. This utility model achieves precise graded treatment of waste gas by setting up storage tanks for low, medium and high concentration chemical detergents and matching spray treatment tanks, combined with real-time monitoring by oxidation-reduction potential sensors and gas concentration sensors; at the same time, the liquid addition component and stirring component ensure stable reagent concentration and improve resource utilization.

[0014] 2. The gas concentration sensor set in this utility model can detect the purified waste gas in real time. The gas that meets the standard is directly discharged through the exhaust pipe, while the gas that does not meet the standard enters the next stage of treatment through the connecting pipe, avoiding ineffective circulation and improving energy utilization. Therefore, it can not only reduce the treatment time of low-concentration waste gas, but also ensure the treatment effect of high-concentration waste gas. Attached Figure Description

[0015] Figure 1 This is one of the three-dimensional structural schematic diagrams of this utility model;

[0016] Figure 2 This is the second three-dimensional structural schematic diagram of this utility model;

[0017] Figure 3 This is a schematic diagram of the spray component structure of this utility model;

[0018] Figure 4 This is a cross-sectional view of the present invention.

[0019] Reference numerals: 1. Raw material liquid storage tank; 2. Liquid addition component; 201. First liquid pump; 202. First collecting plate; 203. Distributor pipe; 204. First solenoid valve; 3. Chemical detergent storage tank; 4. Spray treatment tank; 401. Exhaust pipe; 5. Spray component; 501. Second liquid pump; 502. Second collecting plate; 503. Distributor plate; 504. Nozzle; 6. Stirring component; 601. Motor; 602. Stirring rod; 7. Oxidation-reduction potential sensor; 8. Gas concentration sensor; 9. Connecting pipe. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0022] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0023] In the description of the embodiments of this utility model, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] like Figure 1-4As shown, a waste gas treatment device based on chemical washing and deodorization includes a raw material liquid storage tank 1 and three chemical washing liquid storage tanks 3 above it, each containing low, medium, and high concentrations of chemical washing liquid. Each chemical washing liquid storage tank 3 has a spray treatment tank 4 above it, and each spray treatment tank 4 is equipped with a spray component 5 for washing and deodorizing the waste gas. The spray component 5 includes a second liquid pump 501, a second collecting plate 502, a separating plate 503, and a nozzle 504. The chemical washing liquid storage tanks 3 are equipped with an oxidation-reduction potential sensor 7 for real-time detection of the chemical washing liquid concentration, and the spray treatment tanks 4 are equipped with a gas concentration sensor 8 for detecting the concentration of the treated waste gas. Each spray treatment tank 4 has an exhaust pipe 401 at its top, and adjacent spray treatment tanks 4 are connected by a connecting pipe 9. The raw material liquid storage tank 1 is equipped with a liquid replenishing component 2 for automatically replenishing the chemical washing liquid inside the chemical washing liquid storage tank 3. The liquid replenishing component 2 includes a first liquid pump 201, a first collecting plate 202, a liquid distribution pipe 203, and a first solenoid valve 204. Specifically, when treating the waste gas, the waste gas passes through the spray treatment tank 4 above the low, medium, and high concentration chemical washing liquid storage tanks 3 in sequence, thereby ensuring that the waste gas can be fully treated. At the same time, the waste gas of different concentrations may be discharged to different locations after being washed in different steps. Therefore, it can not only reduce the treatment time of low concentration waste gas, but also ensure the treatment effect of high concentration waste gas. A connecting pipe can be installed at a suitable position between the spray treatment tank 4 and the chemical washing liquid storage tank 3, and the chemical washing liquid after spraying can flow back into the chemical washing liquid storage tank 3 through the connecting pipe.

[0025] like Figure 2 As shown, the input and output ends of the first liquid pump 201 extend into the interior of the raw material liquid storage tank 1 and the first collecting plate 202, respectively. Three dispensing pipes 203 are provided, each extending into the interior of one of the chemical detergent storage tanks 3. Each dispensing pipe 203 is equipped with a first solenoid valve 204. Specifically, the redox potential sensor 7 can detect the concentration of the treatment liquid. When the concentration is detected to be lower than the set value, it will control the liquid adding component 2 to work, thereby realizing the automatic replenishment of chemical detergent. Through the detection of the redox potential sensor 7 and the automatic opening and closing of the first solenoid valve 204, the concentration of chemical detergent can be guaranteed. The amount of chemical detergent in each chemical detergent storage tank 3 is the set amount, avoiding the liquid exceeding the volume of the chemical detergent storage tank 3 when replenishing later.

[0026] like Figure 1As shown, the input and output ends of the second pump 501 extend into the chemical detergent storage tank 3 and the second collecting plate 502, respectively. Multiple distributing plates 503 are provided, all of which are connected to the second collecting plate 502. Spray nozzles 504 are evenly distributed on the distributing plates 503. The second pump 501 is located at the top of the spray treatment tank 4. The second collecting plate 502, the distributing plate 503, and the spray nozzles 504 are located inside the spray treatment tank 4. Specifically, the second pump 501 can sequentially draw the chemical detergent from the chemical detergent storage tank 3 into the second collecting plate 502 and the distributing plate 503, and then spray it outward through the spray nozzles 504. There are certain gaps between the distributing plates 503, so the waste gas after washing can rise through the gaps.

[0027] like Figure 3 As shown, a second solenoid valve is respectively installed on the exhaust pipe 401 and the connecting pipe 9. The input ends of the exhaust pipe 401 and the connecting pipe 9 are both located above the nozzle 504, and the sensing probe of the gas concentration sensor 8 is also located above the nozzle 504. Specifically, after the treated gas is detected by the gas concentration sensor 8, if the gas concentration is qualified, the second solenoid valve on the exhaust pipe 401 will open, and the gas can be directly discharged. Conversely, if the gas concentration is not qualified, the second solenoid valve on the connecting pipe 9 will open, and the gas will be treated by spraying with a higher concentration of chemical washing liquid.

[0028] like Figure 4 As shown, the chemical detergent storage tank 3 is equipped with a stirring component 6 for stirring the chemical detergent. The stirring component 6 includes a motor 601 and a stirring rod 602 connected to its main shaft end. Specifically, the motor 601 drives the stirring rod 602 to rotate, thereby stirring the chemical detergent and accelerating the mixing of the returned chemical detergent, the replenished detergent, and the remaining detergent.

[0029] like Figure 4 As shown, the spray treatment tank 4 above the storage tank 3 containing the lowest concentration of chemical detergent is equipped with an exhaust gas inlet pipe. The exhaust gas enters the spray treatment tank 4 under the action of a pressurizing pump. Specifically, the exhaust gas can be pressurized under the action of the pressurizing pump, thus ensuring that the exhaust gas can pass through the low, medium and high concentration sprays in sequence.

[0030] In summary: The exhaust gas enters through the exhaust gas inlet pipe of the spray treatment box 4 above the lowest concentration chemical detergent storage tank 3 via a pressurized pump. The exhaust gas first passes through the low concentration chemical detergent spray treatment box 4, where the second liquid pump 501 draws the detergent from the storage tank 3 to the second collecting plate 502. After being distributed by the liquid distribution plate 503, it is atomized and sprayed through the nozzle 504. The treated exhaust gas is detected by the gas concentration sensor 8. If it meets the standard, the second solenoid valve of the exhaust pipe 401 is opened for direct discharge. If it does not meet the standard, it enters the medium concentration spray treatment box 4 through the connecting pipe 9 for secondary treatment. If it still does not meet the standard, it continues to enter the high concentration treatment box 4 for deep purification.

[0031] The redox potential sensor 7 monitors the concentration of each chemical detergent storage tank 3 in real time. When the concentration is lower than the set value, the liquid addition component 2 is activated. The first liquid pump 201 pumps the raw material liquid from the raw material liquid storage tank 1 into the first collecting plate 202. The agent is added to the corresponding storage tank 3 through the liquid distribution pipe 203 and the first solenoid valve 204. The motor 601 of the stirring component 6 drives the stirring rod 602 to accelerate the mixing of the return liquid and the newly added agent. The waste liquid after spraying is returned to the corresponding chemical detergent storage tank 3 through the connecting pipe for recycling.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A waste gas treatment device based on chemical scrubbing deodorization, characterized by: The system includes a raw material liquid storage tank (1) and three chemical detergent liquid storage tanks (3) above it, each containing low, medium, and high concentrations of chemical detergent liquid. Each chemical detergent liquid storage tank (3) is topped with a spray treatment tank (4). The spray treatment tank (4) is equipped with a spray component (5) for spraying and deodorizing waste gas. The spray component (5) includes a second liquid pump (501), a second collecting plate (502), a separating plate (503), and a nozzle (504). The chemical detergent liquid storage tanks (3) are equipped with an oxidation-reduction potential sensor for real-time detection of the chemical detergent liquid concentration. The spray treatment box (4) is equipped with a gas concentration sensor (8) for detecting the concentration of the treated waste gas. Each spray treatment box (4) is equipped with an exhaust pipe (401) at the top. Two adjacent spray treatment boxes (4) are connected by a connecting pipe (9). The raw material liquid storage box (1) is equipped with a liquid replenishing component (2) for automatically replenishing the chemical washing liquid inside the chemical washing liquid storage box (3). The liquid replenishing component (2) includes a first liquid pump (201), a first collecting plate (202), a liquid distribution pipe (203), and a first solenoid valve (204).

2. A device for treating exhaust gas based on chemical scrubbing deodorization according to claim 1, characterized in that, The input and output ends of the first liquid pump (201) extend into the interior of the raw material liquid storage tank (1) and the first collecting plate (202), respectively. There are three liquid distribution pipes (203), which extend into the interior of one of the chemical washing liquid storage tanks (3), and each liquid distribution pipe (203) is equipped with a first solenoid valve (204).

3. A device for treating exhaust gas based on chemical scrubbing deodorization according to claim 1, characterized in that, The input and output ends of the second pump (501) extend into the chemical detergent storage tank (3) and the second collection plate (502), respectively. Multiple distribution plates (503) are provided, all of which are connected to the second collection plate (502). The nozzles (504) are evenly distributed on the distribution plates (503). The second pump (501) is located at the top of the spray treatment tank (4). The second collection plate (502), the distribution plates (503) and the nozzles (504) are located inside the spray treatment tank (4).

4. The exhaust gas treatment device based on chemical scrubbing deodorization according to claim 1, characterized in that, A second solenoid valve is provided on the exhaust pipe (401) and the connecting pipe (9). The input ends of the exhaust pipe (401) and the connecting pipe (9) are both located above the nozzle (504). The sensing probe of the gas concentration sensor (8) is also located above the nozzle (504).

5. The exhaust gas treatment device based on chemical scrubbing deodorization according to claim 1, characterized in that, The chemical detergent storage tank (3) is equipped with a stirring component (6) for stirring the chemical detergent. The stirring component (6) includes a motor (601) and a stirring rod (602) connected to the main shaft end thereto.

6. A device for treating exhaust gas based on chemical scrubbing deodorization according to claim 1, characterized in that, An exhaust gas inlet pipe is installed on the spray treatment tank (4) above the storage tank (3) containing the lowest concentration of the chemical washing liquid. The exhaust gas enters the spray treatment tank (4) under the action of a pressurized pump.

Images