Chemical waste gas collecting and processing equipment

Abstract

The utility model belongs to waste gas treatment technical field, concretely relates to a kind of chemical waste gas collection and treatment equipment, including air guide pipe, air guide pipe inside is provided with spray plate, and water inlet pipe is installed on spray plate, adjusting mechanism is installed in air guide pipe, adjusting mechanism includes at least one electric push rod installed in the inside of air guide pipe, and the stroke rod of electric push rod is vertically downward and is connected with spray plate, air guide pipe and located one end of spray plate assembly gas flow sensor, air guide pipe inside and located the bottom of spray plate is provided with multiple blocking structure, multiple blocking structure includes at least two blocking plates, at least two blocking plates are symmetrically distributed relative to the central axis of air guide pipe.The utility model can dynamically match intake air quantity, spraying quantity and spraying space size, reduce spraying space empty area, avoid spraying reagent into empty area waste, make reagent contact with waste gas, improve processing efficiency, reduce cost, enhance operation reliability.

Description

Technical Field

[0001] This utility model belongs to the field of waste gas treatment technology, specifically relating to a chemical waste gas collection and treatment device. Background Technology

[0002] In the process of chemical production, a large amount of complex and hazardous waste gas is generated. This waste gas not only contains common pollutants such as hydrogen sulfide, ammonia, benzene, and volatile organic compounds, but may also contain some substances with special chemical properties. If it is discharged directly without effective treatment, it will cause serious pollution to the atmospheric environment, threaten the ecological balance, and also have adverse effects on the health of surrounding residents. It may even cause safety accidents such as fires and explosions. Therefore, the development of efficient and reliable chemical waste gas collection and treatment equipment has always been a key research direction in the chemical industry and the environmental protection field.

[0003] Currently, there are various types of chemical waste gas collection and treatment equipment on the market. Their treatment processes cover a variety of methods such as physical filtration, chemical adsorption, combustion, and biodegradation. In the process of waste gas treatment, spraying is a common and effective method that is widely used to remove acidic, alkaline, some organic pollutants, and particulate matter from waste gas. By allowing the spraying agent liquid to come into full contact with the waste gas, the pollutants in the waste gas are absorbed or transformed through the physical or chemical reaction between the two, thereby achieving the purpose of purification. However, existing chemical waste gas spraying treatment equipment and processes have many shortcomings. Among them, the most prominent problem is that they cannot effectively match the air intake, spray volume, and spray space size.

[0004] In actual operation, due to the complexity and variability of chemical production conditions, the amount of waste gas generated is constantly changing. However, traditional equipment often lacks the ability to accurately monitor and adaptively adjust the intake air volume in real time. When the intake air volume suddenly increases, the spray volume cannot be increased accordingly in time, resulting in the waste gas not being fully purified. Conversely, when the intake air volume decreases, the spray volume fails to be reduced in time, resulting in the waste of spraying agent liquid.

[0005] Meanwhile, the spray space size of existing equipment is usually fixed and cannot be flexibly adjusted according to the actual air intake and exhaust gas distribution. This makes it easy for empty areas without chemical exhaust gas to appear inside the spray space. A large amount of spray agent liquid enters these empty areas but cannot effectively contact and react with the chemical exhaust gas. This not only causes a great waste of spray agent liquid and increases the production cost of enterprises, but may also damage the internal structure of the equipment due to long-term unnecessary spraying and scouring, reducing the service life and stability of the equipment.

[0006] In summary, existing chemical waste gas spray treatment equipment has significant shortcomings in the dynamic matching of air intake, spray volume, and spray space size. There is an urgent need for an innovative technical solution to address these issues, thereby improving waste gas treatment efficiency, reducing waste of spraying agents, and enhancing the overall performance and economic benefits of the equipment. Utility Model Content

[0007] The purpose of this invention is to provide a chemical waste gas collection and treatment device that can dynamically match the air intake, spray volume, and spray space size, reduce empty areas in the spray space, avoid waste of spraying agents entering empty areas, allow agents to concentrate on contact with waste gas, improve treatment efficiency, reduce costs, and enhance operational reliability.

[0008] The specific technical solution adopted by this utility model is as follows:

[0009] A chemical waste gas collection and treatment device includes a gas guide pipe, a spray plate is installed inside the gas guide pipe, a water inlet pipe is installed on the spray plate, and an adjustment mechanism is installed inside the gas guide pipe.

[0010] The adjustment mechanism includes at least one electric push rod installed inside the air guide pipe, and the stroke rod of the electric push rod is vertically downward and connected to the spray plate. An air flow sensor is installed on the air guide pipe at one end of the spray plate, and multiple blocking structures are provided inside the air guide pipe at the bottom of the spray plate.

[0011] Each of the aforementioned blocking structures includes at least two blocking plates, and the at least two blocking plates are symmetrically distributed with respect to the central axis of the air duct.

[0012] The baffle plate includes a base plate and a sliding plate. The base plate is fixed to the bottom inside the air duct. The sliding plate is slidably connected to the top of the base plate and is in contact with the spray plate. A spring is installed inside the base plate and is connected to the sliding plate.

[0013] A collection trough is provided inside the air guide pipe and directly below the spray plate, and multiple baffles are assembled inside the collection trough. At least one drain pipe is provided inside the collection trough.

[0014] Both ends of the spray plate are fixed with a shielding flexible sheet, and the shielding flexible sheet is connected to the top of the inner wall of the spray plate.

[0015] The bottom of both ends of the spray plate is provided with a slope.

[0016] The technical effects achieved by this utility model are as follows:

[0017] This invention uses an air flow sensor to detect and dynamically match the intake air volume, spray volume, and spray space size, reducing empty areas in the spray space, avoiding waste of spraying agents entering empty areas, allowing the agents to concentrate on contact with the waste gas, improving treatment efficiency, reducing costs, and enhancing operational reliability. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a cross-sectional view of the air guide tube in this utility model;

[0020] Figure 3 This is a schematic diagram of the structure between the spray plate, the base plate, and the inclined surface in this utility model;

[0021] Figure 4 This is a schematic diagram of the structure between the air guide pipe, the collection tank and the baffle plate in this utility model;

[0022] Figure 5 This is a schematic diagram of the structure between the base plate, the sliding plate, and the spring in this utility model.

[0023] The attached diagram lists the components represented by each number as follows:

[0024] 1. Air guide pipe; 2. Spray plate; 3. Air flow sensor; 4. Electric push rod; 5. Soft shielding sheet; 6. Inclined surface; 7. Collection tank; 8. Baffle plate; 81. Base plate; 82. Sliding plate; 83. Spring; 9. Water inlet pipe; 10. Drain pipe. Detailed Implementation

[0025] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0026] like Figures 1-5 As shown, a chemical waste gas collection and treatment device includes a gas guide pipe 1, a spray plate 2 is installed inside the gas guide pipe 1, and a water inlet pipe 9 is installed on the spray plate 2. When the gas is transported to the collection box for treatment through the gas guide pipe 1, it can be pre-treated by the equipment installed on the gas guide pipe 1. During the treatment of chemical waste gas, liquid is transported to the water inlet pipe 9 by an external liquid pump, and then transported to the spray plate 2 through the water inlet pipe 9. The gas is sprayed by the spray plate 2, thereby eliminating some of the harmful substances in the gas.

[0027] For gases such as sulfur dioxide, hydrogen chloride, hydrogen fluoride, and nitrogen oxides, alkaline water, such as water with added sodium hydroxide and calcium hydroxide, can be used for spraying. For ammonia, acidic water, such as dilute sulfuric acid or dilute hydrochloric acid, can be used for spraying.

[0028] An adjustment mechanism is installed inside the air duct 1.

[0029] See attached document Figures 2-3 The adjustment mechanism includes at least one electric push rod 4 installed inside the air guide pipe 1, and the stroke rod of the electric push rod 4 is vertically downward and connected to the spray plate 2. An air flow sensor 3 is installed on the air guide pipe 1 and at one end of the spray plate 2.

[0030] When the gas flow sensor 3 detects a low gas flow rate, the internal controller can drive the electric push rod 4, causing the stroke rod of the electric push rod 4 to move the spray plate 2 downward. After moving downward, the space between the spray plate 2 and the air guide pipe 1 is reduced, which makes the gas more concentrated. It can dynamically match the air intake, spray volume and spray space size, reduce the empty area inside the spray space where there is no chemical waste gas, thereby reducing the amount of spray agent liquid that cannot effectively contact the chemical waste gas due to entering the empty area, and concentrate the spray agent liquid towards the chemical waste gas, reducing the waste of spray agent liquid.

[0031] Both ends of the spray plate 2 are fixed with shielding flexible sheets 5, and the shielding flexible sheets 5 are connected to the top of the inner wall of the spray plate 2, so that the shielding flexible sheets 5 can block the gas and prevent the gas from passing over the top of the spray plate 2. The shielding flexible sheets 5 can deform when the spray plate 2 moves down, thereby adapting to the movement of the spray plate 2. Both ends of the spray plate 2 are provided with inclined surfaces 6 at the bottom. Through the setting of the inclined surfaces 6, the industrial waste gas in contact with the spray plate 2 can be guided by the inclined surfaces 6 and gradually move to the bottom of the spray plate 2 to receive the spray of the agent from the spray plate 2.

[0032] Multiple blocking structures are installed inside the air duct 1 and at the bottom of the spray plate 2.

[0033] See attached document Figure 4Each of the multiple blocking structures includes at least two blocking plates 8, which are symmetrically distributed with respect to the central axis of the air duct 1. By setting the blocking plates 8, the blocking plates 8 can block most of the gas, so that the gas can only gradually pass over the blocking plates 8 one by one and drift forward. This allows the blocking plates 8 to hinder and slow down the movement of the gas, thereby making the gas stay in the spray space for a longer time and ensuring the spraying effect. Furthermore, a collection trough 7 is set inside the air duct 1 and directly below the spray plate 2, and multiple blocking plates 8 are assembled inside the collection trough 7. At least one drain pipe 10 is set inside the collection trough 7. By setting the collection trough 7, the collection trough 7 can collect the sprayed liquid, prevent the liquid from flowing to other places, and guide it through the drain pipe 10 to the outside of the air duct 1.

[0034] See attached document Figure 5 The baffle plate 8 includes a base plate 81 and a sliding plate 82. The base plate 81 is fixed to the bottom inside the air duct 1. The sliding plate 82 is slidably connected to the top of the base plate 81 and is in contact with the spray plate 2. A spring 83 is installed inside the base plate 81 and is connected to the sliding plate 82. When the spray plate 2 moves down, it abuts against the base plate 81, causing the sliding plate 82 to move down with the spray plate 2 and compress the spring 83. When the spray plate 2 moves up, the sliding plate 82 moves up with the spray plate 2 due to the elasticity of the spring 83, so that the sliding plate 82 is always in contact with the spray plate 2, preventing gas from passing through the gap between the baffle plate 8 and the spray plate 2.

[0035] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A chemical waste gas collection and treatment device, comprising a gas guide pipe (1), characterized in that: The air guide pipe (1) is equipped with a spray plate (2), and a water inlet pipe (9) is installed on the spray plate (2). An adjustment mechanism is installed inside the air guide pipe (1).

2. The chemical waste gas collection and treatment equipment according to claim 1, characterized in that: The adjustment mechanism includes at least one electric push rod (4) installed inside the air guide pipe (1), and the stroke rod of the electric push rod (4) is vertically downward and connected to the spray plate (2). An air flow sensor (3) is installed on the air guide pipe (1) and at one end of the spray plate (2). Multiple blocking structures are provided inside the air guide pipe (1) and at the bottom of the spray plate (2).

3. The chemical waste gas collection and treatment equipment according to claim 2, characterized in that: Each of the aforementioned blocking structures includes at least two blocking plates (8), and the at least two blocking plates (8) are symmetrically distributed with respect to the central axis of the air duct (1).

4. The chemical waste gas collection and treatment equipment according to claim 3, characterized in that: The baffle plate (8) includes a base plate (81) and a sliding plate (82). The base plate (81) is fixed to the bottom inside the air duct (1). The sliding plate (82) is slidably connected to the top of the base plate (81) and is in contact with the spray plate (2). A spring (83) is installed inside the base plate (81) and is connected to the sliding plate (82).

5. The chemical waste gas collection and treatment equipment according to claim 4, characterized in that: A collection trough (7) is provided inside the air duct (1) and directly below the spray plate (2), and multiple baffles (8) are assembled inside the collection trough (7). At least one drain pipe (10) is provided inside the collection trough (7).

6. The chemical waste gas collection and treatment equipment according to claim 5, characterized in that: Both ends of the spray plate (2) are fixed with shielding soft sheets (5), and the shielding soft sheets (5) are connected to the top of the inner wall of the spray plate (2).

7. The chemical waste gas collection and treatment equipment according to claim 6, characterized in that: The bottom of both ends of the spray plate (2) is provided with inclined surfaces (6).

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