A dosing device for a waste gas treatment tank

Abstract

This utility model relates to the technical field of waste gas treatment, and proposes a drug delivery device for a waste gas treatment tank. The device includes a storage tank connected to the treatment tank and a drug delivery tube assembly located inside the treatment tank. The drug delivery tube assembly comprises multiple drug delivery tubes arranged in a vertical array and interconnected. Each drug delivery tube is a horizontally laid serpentine tube, and each tube has several uniformly distributed drug outlets. A stirring component is located between every two adjacent drug outlets. The beneficial effects of this utility model are: the serpentine arrangement of the multi-layered drug delivery tubes in the drug delivery tube assembly extends the flow path of the agent within the treatment tank, allowing the agent to be released uniformly from different heights and areas, avoiding excessively high or low local concentrations.

Description

Technical Field

[0001] This utility model relates to the technical field of waste gas treatment, specifically to a dosing device for a waste gas treatment pool. Background Technology

[0002] In the field of environmental engineering, industrial waste gas treatment is a key link in controlling air pollution. Waste gas treatment tanks, as core equipment, remove harmful substances (such as sulfides, nitrogen oxides, and volatile organic compounds) by injecting treatment solutions (such as acid-base neutralizers and oxidants) into the tank to react chemically with the waste gas. However, traditional dosing systems often use single-point or single-layer dosing methods, injecting the agent only into a localized area of ​​the treatment tank. The agent relies on natural diffusion to mix with the water, resulting in slow mixing speed, low uniformity, long processing time, and insufficient mixing. This can easily lead to localized concentration deviations, directly affecting the subsequent waste gas treatment effect. Utility Model Content

[0003] This invention proposes a drug delivery device for a waste gas treatment tank. The multi-layered drug delivery tubes arranged in a serpentine pattern in the drug delivery tube group can extend the flow path of the agent in the treatment tank, so that the agent can be released evenly from different heights and areas, avoiding excessively high or low local concentrations.

[0004] Therefore, the technical solution adopted is as follows:

[0005] A drug delivery device for a waste gas treatment tank, wherein the treatment tank is connected to a water injection pipe, an exhaust pipe, and an air inlet pipe, the exhaust pipe and the air inlet pipe being located at the top and bottom of the treatment tank, respectively; the drug delivery device includes a drug storage tank connected to the treatment tank and a drug delivery tube assembly located inside the treatment tank; the drug delivery tube assembly includes multiple drug delivery tubes arranged in a vertical array and interconnected with each other; the drug delivery tubes are horizontally laid serpentine tubes; each drug delivery tube has several uniformly distributed drug outlets, and a stirring component is provided between every two adjacent drug outlets.

[0006] A further technical solution is that the stirring assembly includes a liquid outlet head communicating with the drug delivery tube. The top of the liquid outlet head has multiple through holes. A rotating shaft is rotatably connected to the liquid outlet head. The rotating shaft is arranged along the liquid outlet direction of the through holes. One end of the rotating shaft is inserted into the inner cavity of the liquid outlet head and a driving blade is fixed thereon. The other end is fixed with a stirring rod. The driving blade consists of several blades that are evenly fixed around the rotating shaft, and their windward side faces the through holes.

[0007] A further technical solution is that the drug storage tank is connected to the treatment pool through a conveying mechanism. The conveying mechanism includes a drug inlet pump. The input end of the drug inlet pump is connected to the drug storage tank through a first connecting pipe, and the output end is connected to the drug delivery tubing assembly through a second connecting pipe.

[0008] A further technical solution is that a waste gas filter layer is fixed at the top of the treatment pool, and a sewage pipe is connected to the bottom.

[0009] A further technical solution includes a circulation mechanism, which includes a circulation pump. The input end of the circulation pump is connected to a liquid extraction pipe, and the output end is connected to a main spray pipe via a drain pipe. The main spray pipe is connected to a plurality of evenly distributed spray branch pipes. The spray branch pipes penetrate into the treatment tank and are laid above the drug delivery pipe assembly. The inlet end of the liquid extraction pipe is connected to the bottom of the treatment tank.

[0010] The working principle and beneficial effects of this application are as follows:

[0011] The multi-layered dosing tubes arranged in a serpentine pattern in the dosing tube assembly extend the flow path of the agent within the treatment tank, enabling the agent to be released evenly from different heights and areas, thus avoiding excessively high or low local concentrations.

[0012] The stirring assembly uses the water flow power when the agent is sprayed to drive the blades to rotate, which in turn drives the stirring rod to stir the surrounding liquid, ensuring that the agent and water are quickly mixed in a short time, providing stable reaction conditions for subsequent waste gas treatment. Attached Figure Description

[0013] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0014] Figure 1 This is a schematic diagram of the overall structure of this application;

[0015] Figure 2 This is a schematic diagram of the overall structure from another perspective of this application;

[0016] Figure 3 This is a schematic diagram of the structure of the treatment pool described in this application;

[0017] Figure 4 This is a schematic diagram of the drug delivery tube assembly described in this application;

[0018] Figure 5 This is a schematic diagram of the structure of the stirring assembly described in this application;

[0019] Figure 6 This is a schematic diagram of the circulating mechanism described in this application.

[0020] In the diagram: 1. Treatment tank; 2. Storage tank; 3. First connecting pipe; 4. Inlet pump; 5. Circulation mechanism; 51. Main spray pipe; 52. Branch spray pipe; 53. Circulation pump; 54. Drain pipe; 55. Extraction pipe; 6. Air inlet pipe; 7. Sewage pipe; 8. Dosing pipe assembly; 81. Dosing pipe; 82. Outlet; 83. Stirring assembly; 831. Liquid outlet; 832. Through hole; 833. Rotating shaft; 834. Drive blade; 835. Stirring rod; 9. Exhaust pipe; 10. Water injection pipe; 11. Second connecting pipe; 12. Waste gas filter layer. Detailed Implementation

[0021] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0022] like Figures 1-6 As shown, a drug delivery device for a waste gas treatment tank is disclosed. The treatment tank 1 is connected to a water injection pipe 10, an exhaust pipe 9, and an air inlet pipe 6. The exhaust pipe 9 and the air inlet pipe 6 are located at the top and bottom of the treatment tank 1, respectively. The drug delivery device includes a drug storage tank 2 connected to the treatment tank 1 and a drug delivery tube group 8 located inside the treatment tank 1. The drug delivery tube group 8 includes a plurality of drug delivery tubes 81 arranged in a vertical array and connected to each other. The drug delivery tubes 81 are horizontally laid serpentine tubes. Each drug delivery tube 81 has several drug outlets 82 evenly distributed on it, and a stirring component 83 is provided between every two adjacent drug outlets 82.

[0023] In this embodiment, water is added to the treatment tank 1 through the water injection pipe 10. Then, the medicine in the storage tank 2 is introduced into the treatment tank 1 through the drug delivery pipe group 8 using the drug delivery pump 4. The medicine and water are added in a certain proportion. After the liquid level in the treatment tank 1 reaches the set threshold, the addition of medicine and water to the treatment tank 1 is stopped. Then, the exhaust gas enters the treatment tank 1 through the bottom air inlet pipe 6. The harmful substances in the exhaust gas and the treatment liquid undergo a neutralization reaction. The exhaust gas after the neutralization reaction is discharged upward through the exhaust pipe 9.

[0024] During the process of introducing the medicine in the storage tank 2 into the treatment tank 1 through the dosing tube assembly 8, the medicine is delivered to multiple dosing tubes 81 and then discharged through multiple outlets 82 and the stirring assembly 83. Since the dosing tubes 81 are distributed in a serpentine multi-layer pattern, the medicine is evenly distributed to different areas of the treatment tank 1 and quickly mixed with the water that has been added to the treatment tank 1 in advance.

[0025] The stirring assembly 83 includes a liquid outlet head 831 connected to the drug delivery tube 81. The top of the liquid outlet head 831 has multiple through holes 832. A rotating shaft 833 is rotatably connected to the liquid outlet head 831. The rotating shaft 833 is arranged along the liquid outlet direction of the through holes 832. One end of the rotating shaft 833 is inserted into the inner cavity of the liquid outlet head 831 and a driving blade 834 is fixed thereon. The other end is fixed with a stirring rod 835. The driving blade 834 consists of several blades that are evenly fixed around the rotating shaft 833 and are arranged with their windward side facing the through holes 832.

[0026] During the process of adding the agent to the treatment tank 1 through the dosing tube assembly 8, the agent is transported in the dosing tube 81. When the liquid is sprayed out from the through hole 832 of the outlet head 831, the force generated by the water flow drives the drive blade 834 to rotate, which in turn drives the coaxially arranged rotating shaft 833 and stirring rod 835 to rotate, stirring the surrounding treatment liquid, accelerating the mixing of the agent and water, and forming a uniform treatment liquid.

[0027] Furthermore, the storage tank 2 is connected to the treatment pool 1 through a conveying mechanism. The conveying mechanism includes a drug inlet pump 4. The input end of the drug inlet pump 4 is connected to the storage tank 2 through a first connecting pipe 3, and the output end is connected to the drug delivery tube assembly 8 through a second connecting pipe 11 to ensure the power of liquid dispensing.

[0028] It should be noted that treatment tank 1 is equipped with a level gauge to detect the liquid level inside the tank. When the liquid level in treatment tank 1 reaches a set threshold, the addition of chemicals and water to treatment tank 1 is stopped. It is worth noting that existing technologies can be used to add chemicals and water to treatment tank 1 in a certain proportion, specifically a proportional pump or a flow control valve, which will not be elaborated further. An exhaust gas filter layer 12 is fixed at the top of treatment tank 1, and a drain pipe 7 is connected to the bottom. The exhaust gas after the neutralization reaction rises and passes through the exhaust gas filter layer 12 to filter out some harmful substances again. Finally, the treated exhaust gas is discharged through the exhaust pipe 9, and the wastewater and other substances that need to be replaced are discharged through the drain pipe 7.

[0029] like Figure 6 As shown, the drug delivery device also includes a circulation mechanism 5, which includes a circulation pump 53. The input end of the circulation pump 53 is connected to a liquid extraction pipe 55, and the output end is connected to a main spray pipe 51 via a drain pipe 54. Multiple evenly distributed spray branch pipes 52 are connected to the main spray pipe 51. The spray branch pipes 52 penetrate into the treatment tank 1 and are laid above the drug delivery pipe assembly 8. The inlet end of the liquid extraction pipe 55 is connected to the bottom of the treatment tank 1. By starting the circulation pump 53, the treatment liquid at the bottom of the treatment tank 1 is drawn into the circulation pump 53 through the liquid extraction pipe 55, transported to the main spray pipe 51 via the drain pipe 54, and then evenly sprayed onto the upper part of the treatment tank 1 through the multiple spray branch pipes 52, where it comes into counter-current contact with the rising exhaust gas, achieving a secondary reaction.

[0030] When using this drug delivery device, water is first added to the treatment tank 1 through the water injection pipe 10. Then, the drug pump 4 introduces the drug from the storage tank 2 into the treatment tank 1 through the drug delivery pipe assembly 8. The drug and water are added in a certain ratio. After the liquid level in the treatment tank 1 reaches the set threshold, the addition of drug and water to the treatment tank 1 is stopped. Then, the circulation mechanism 5 is used to circulate the treatment liquid from the treatment tank 1 for introduction and export. The treatment liquid is repeatedly sprayed in the treatment tank 1 to allow the treatment liquid to fully react with the waste gas. Then, the waste gas enters the treatment tank 1 through the bottom air inlet pipe 6. The harmful substances in the waste gas and the treatment liquid undergo a neutralization reaction. After the neutralization reaction, the waste gas rises and passes through the waste gas filter layer 12 to filter out some harmful substances again. Finally, the treated waste gas is discharged through the exhaust pipe 9.

[0031] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A waste gas treatment tank dosing device, the treatment tank (1) is communicated with a water injection pipe (10), an exhaust pipe (9) and an air inlet pipe (6), the exhaust pipe (9) and the air inlet pipe (6) are respectively located at the top and the bottom of the treatment tank (1), characterized in that, The drug delivery device includes a drug storage tank (2) connected to the treatment pool (1) and a drug delivery tube group (8) located inside the treatment pool (1). The drug delivery tube group (8) includes multiple drug delivery tubes (81) arranged in a vertical array and connected to each other. The drug delivery tubes (81) are serpentine tubes laid in a horizontal direction. Each drug delivery tube (81) has several drug outlets (82) evenly opened on it, and there is a stirring component (83) between every two adjacent drug outlets (82).

2. A dosing device for a waste treatment tank according to claim 1, characterized in that The stirring assembly (83) includes a liquid outlet head (831) connected to the drug delivery tube (81). The top of the liquid outlet head (831) is provided with multiple through holes (832). A rotating shaft (833) is rotatably connected to the liquid outlet head (831). The rotating shaft (833) is arranged along the liquid outlet direction of the through hole (832), and one end of the shaft is inserted into the inner cavity of the liquid outlet head (831) and a driving blade (834) is fixed thereon. The other end is fixed with a stirring rod (835). The driving blade (834) consists of several blades that are evenly fixed around the rotating shaft (833) and their windward side faces the through hole (832).

3. A dosing device for a waste treatment tank according to claim 1, characterized in that The storage tank (2) is connected to the treatment pool (1) through a conveying mechanism. The conveying mechanism includes a drug inlet pump (4). The input end of the drug inlet pump (4) is connected to the storage tank (2) through a first connecting pipe (3), and the output end is connected to the drug delivery tube group (8) through a second connecting pipe (11).

4. A dosing device for a waste treatment tank according to claim 1, characterized in that The treatment tank (1) has a waste gas filter layer (12) fixed at the top and a sewage pipe (7) connected at the bottom.

5. The waste gas treatment tank drug delivery device according to claim 1, characterized in that, It also includes a circulation mechanism (5), which includes a circulation pump (53). The input end of the circulation pump (53) is connected to a liquid extraction pipe (55), and the output end is connected to a main spray pipe (51) through a drain pipe (54). The main spray pipe (51) is connected to a plurality of evenly distributed spray branch pipes (52). The spray branch pipes (52) penetrate into the treatment tank (1) and are laid above the drug administration pipe group (8). The inlet end of the liquid extraction pipe (55) is connected to the bottom of the treatment tank (1).

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