Double-cylinder plasma adsorption device

Abstract

The utility model relates to the technical field of tail gas treatment, in particular to a double-cylinder plasma adsorption device which comprises a shell, a gas inlet pipe assembly, a main cavity, a reaction cavity, a dust collection cooling cavity, a first L-shaped gas inlet pipe, a second L-shaped gas inlet pipe, a first water tank, a second water tank, a gas collection cylinder, a first adsorption cylinder and a second adsorption cylinder, the air inlet pipe assembly is connected to the main cavity, the plasma torch device is installed on the main cavity, the ash collecting and cooling cavity is connected with a first L-shaped air inlet pipe and a second L-shaped air inlet pipe, the second L-shaped air inlet pipe is connected with a second water tank through a pipeline, the first water tank and the second water tank are connected with a first adsorption cylinder and a second adsorption cylinder respectively, and the first adsorption cylinder and the second adsorption cylinder are connected with the main cavity. The first adsorption cylinder and the second adsorption cylinder are connected with a gas collection cylinder; and an acid discharge pipe is arranged on the gas collection cylinder. The tail gas treatment device solves the problems that an existing tail gas treatment device adopts a single treatment mode, lacks an effective cooling system and is difficult to achieve deep purification.

Description

TECHNICAL FIELD

[0001] The utility model relates to tail gas treatment technical field especially relates to a double cylinder plasma adsorption device. BACKGROUND

[0002] In recent years, plasma technology has been gradually applied in the field of waste gas treatment. Plasma is a partially ionized gas state, under high enough energy, gas molecules can be decomposed into free radicals, ions and other active particles. Using this characteristic, plasma can effectively convert harmful components in waste gas into harmless or low-harm substances. Compared with traditional methods, plasma technology has the advantages of fast reaction speed, high treatment efficiency, wide application range, etc., especially suitable for treating pollutants that are difficult to remove by conventional means.

[0003] However, the existing tail gas treatment device still has many defects in practical application. The traditional tail gas treatment equipment usually adopts a single treatment method, such as simple adsorption or catalytic combustion, and the treatment capacity for waste gas with complex components is limited, which is difficult to achieve deep purification, resulting in that the treated gas still contains a high concentration of harmful substances. Many existing devices lack effective cooling systems, which can easily cause damage to the equipment due to overheating during high-temperature plasma treatment, shorten the service life of the equipment, and increase the maintenance cost.

[0004] The utility model discloses a double cylinder plasma adsorption device to solve the above technical problems. UTILITY MODEL CONTENTS

[0005] The utility model provides a double cylinder plasma adsorption device, aims at solving the problems that the existing tail gas treatment device adopts a single treatment method and lacks effective cooling system, and is difficult to achieve deep purification. Its technical scheme is as follows:

[0006] A double cylinder plasma adsorption device, comprising a shell, an air inlet pipe assembly, a main cavity, a reaction cavity, a dust collecting cooling cavity, a first L-shaped air inlet pipe, a second L-shaped air inlet pipe, a first water tank, a second water tank, a gas collecting cylinder, a first adsorption cylinder and a second adsorption cylinder; the air inlet pipe assembly is connected to the main cavity, the plasma torch device is installed on the main cavity, the reaction cavity and the dust collecting cooling cavity are connected in sequence by flanges below the main cavity, the dust collecting cooling cavity is connected with the first L-shaped air inlet pipe and the second L-shaped air inlet pipe, the first L-shaped air inlet pipe is connected with the first water tank through a pipeline, the second L-shaped air inlet pipe is connected with the second water tank through a pipeline, the first adsorption cylinder and the second adsorption cylinder are connected to the first water tank and the second water tank respectively, the first adsorption cylinder and the second adsorption cylinder are connected to the gas collecting cylinder, and the acid discharge pipe is arranged on the gas collecting cylinder.

[0007] On the basis of the above technical scheme, the air inlet pipe assembly comprises two groups of air inlet pipes, the air inlet pipe comprises an air inlet straight pipe and an air pipe assembly, the air pipe assembly comprises a first air pipe, a second air pipe, a main air pipe and a three-way pneumatic valve, and the openings of the three-way pneumatic valve are connected with the first air pipe, the second air pipe and the main air pipe respectively.

[0008] Further, the main cavity is provided with a main cavity interlayer, and a main cavity water pipe is arranged on the main cavity, and an outlet of the main cavity water pipe is communicated with the main cavity interlayer.

[0009] Further, the reaction cavity is provided with a first reaction cavity interlayer and a second reaction cavity interlayer, and a reaction cavity water pipe is arranged on the reaction cavity, and an outlet of the reaction cavity water pipe is communicated with the first reaction cavity interlayer.

[0010] Further, the ash collecting cooling cavity is provided with an ash collecting cooling cavity interlayer, and an ash collecting cooling cavity water pipe is arranged in the ash collecting cooling cavity, and an outlet of the ash collecting cooling cavity water pipe is communicated with the ash collecting cooling cavity interlayer.

[0011] Preferably, the first water tank comprises a water tank shell and a baffle, the baffles are staggered distributed in the first water tank, and an L-shaped pipe mounting port and an adsorption cylinder mounting port are arranged on the water tank shell.

[0012] Beneficial effects

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows: efficient purification: the high-temperature plasma arc formed by the plasma torch device can quickly convert waste gas molecules into active particles, and the efficient adsorbent is used to realize deep purification, so that the treated gas can meet strict environmental protection standards. Effective cooling system: by arranging cooling interlayers at key positions, the optimal performance of the adsorbent and other key components can be maintained, and they can be stably operated for a long time. When the tail gas contacts the cooled inner wall, some harmful components in the tail gas will change physically or chemically (such as condensation or adsorption) due to the sudden temperature drop, which helps to further remove pollutants and improve the purification effect. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only one embodiment of the utility model, and those skilled in the art can obtain other implementation drawings according to the provided drawings without creating labor.

[0015] Figure 1 The structural schematic diagram of the utility model;

[0016] Figure 2The internal structure of the utility model is a structure schematic view.

[0017] Figure 3 The internal structure of the utility model is a perspective view.

[0018] Figure 4 The main cavity, reaction cavity and dust collecting cooling cavity of the utility model are shown in the schematic view.

[0019] Figure 5 The side view of the water tank of the utility model is shown in the schematic view.

[0020] Figure 6 Figure 5 The sectional view of A-A.

[0021] Figure 7 The structure schematic view of the air inlet pipe assembly of the utility model is shown in the schematic view.

[0022] Figure 8 The structure schematic view of the water tank of the utility model is shown in the schematic view.

[0023] Figure 9 The internal structure schematic view of the water tank of the utility model is shown in the schematic view.

[0024] Figure 10 The internal structure schematic view of the adsorption cylinder of the utility model is shown in the schematic view. DETAILED DESCRIPTION

[0025] The utility model will be further described below in combination with the drawings and examples:

[0026] The embodiments of the utility model will be described in detail below, and the examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the utility model and cannot be understood as a limitation of the utility model.

[0027] In the description of the utility model, it should be pointed out that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected, it can be directly connected, or indirectly connected through intermediate medium. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0028] ​In the description of the utility model, it is understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0029] As shown in Figures 1 to 6 A double cylinder plasma adsorption device, characterized in that: including shell 1, air inlet pipe assembly 2, main cavity 3, reaction cavity 4, dust collecting cooling cavity 5, first L type air inlet pipe 61, second L type air inlet pipe 62, first water tank 71, second water tank 72, gas collecting cylinder 8, first adsorption cylinder 91 and second adsorption cylinder 92, the air inlet pipe assembly 2 is connected on the main cavity 3, the plasma torch device 30 is installed on the main cavity 3, the reaction cavity 4 and the dust collecting cooling cavity 5 are flange connected in sequence below the main cavity 3, the dust collecting cooling cavity 5 is connected with the first L type air inlet pipe 61 and the second L type air inlet pipe 62, the first L type air inlet pipe 61 is connected with the first water tank 71 through pipeline, the second L type air inlet pipe 62 is connected with the second water tank 72 through pipeline, the first adsorption cylinder 91 and the second adsorption cylinder 92 are connected on the first water tank 71 and the second water tank 72 respectively, the first adsorption cylinder 91 and the second adsorption cylinder 92 are connected with the gas collecting cylinder 8, and the acid discharge pipe 80 is arranged on the gas collecting cylinder 8.

[0030] As shown in Figure 7 The air inlet pipe assembly 2 includes two groups of air inlet pipes, the air inlet pipes include air inlet straight pipes 21 and air pipe assemblies, the air pipe assemblies include first air pipes 221, second air pipes 222, main air pipes 223 and three-way pneumatic valves 224, and the openings of the three-way pneumatic valves 224 are connected with the first air pipes 221, the second air pipes 222 and the main air pipes 223 respectively. Branches are arranged on the main air pipes 223 and the air inlet straight pipes 21, and the branches are used for injecting oxygen, air or other combustion-supporting gases into the device. By arranging the three-way pneumatic valves 224, the gas flow direction can be flexibly controlled, and the waste gas can be directly introduced into the main cavity or mixed with the gas and then introduced. This provides greater adaptability and adjustment space for different types of waste gas treatment. Injecting additional combustion-supporting gases can increase the working efficiency of the plasma torch device 30, promote the ionization, bombardment and high-temperature decomposition of waste gas molecules, thereby accelerating the reaction speed and improving the conversion rate.

[0031] The main cavity 3 is provided with a main cavity interlayer 31, and a main cavity water pipe is arranged on the main cavity 3, and the outlet of the main cavity water pipe is communicated with the main cavity interlayer 31. The main cavity 3 has an outer wall and an inner wall, and the main cavity interlayer 31 is formed between the outer wall and the inner wall. Water or cooling gas and cooling liquid can be injected into the main cavity interlayer 31 through the main cavity water pipe, so that the tail gas is cooled when contacting the inner wall. A main cavity water inlet and a main cavity water outlet are arranged on the main cavity water pipe, which facilitates the injection and discharge of the cooling liquid.

[0032] The heat generated in the high-temperature plasma treatment process is extremely large, and the tail gas directly contacting the high temperature may cause damage to the inner wall of the main cavity 3. By injecting a cooling medium such as water, cooling gas or cooling liquid into the interlayer, a heat shield can be formed between the inner wall of the main cavity 3 and the high-temperature tail gas, effectively reducing the temperature of the inner wall, thereby prolonging the service life of the equipment.

[0033] The reaction cavity 4 is provided with a first reaction cavity interlayer 41 and a second reaction cavity interlayer 42, and a reaction cavity water pipe is arranged on the reaction cavity 4, and the outlet of the reaction cavity water pipe is communicated with the first reaction cavity interlayer 41. Water or cooling gas and cooling liquid can be injected into the first reaction cavity interlayer 41 through the reaction cavity water pipe, so that the tail gas is cooled when contacting the inner wall of the reaction cavity 4. A reaction cavity water inlet and a reaction cavity water outlet are arranged on the reaction cavity water pipe. By injecting a cooling medium such as water, cooling gas or cooling liquid into the first reaction cavity interlayer 41 through the reaction cavity water pipe, the temperature in the reaction cavity can be effectively reduced. When the high-temperature tail gas contacts the cooled inner wall of the reaction cavity, it can be rapidly cooled, thereby preventing damage to the equipment due to overheating.

[0034] The presence of two interlayers can help more evenly distribute heat, avoid local overheating or overcooling, and maintain the consistency of the temperature inside the entire reaction cavity, which is crucial for ensuring the processing effect.

[0035] The dust collecting and cooling cavity 5 is provided with a dust collecting and cooling cavity interlayer 51, and a dust collecting and cooling cavity water pipe is arranged in the dust collecting and cooling cavity 5, and the outlet of the dust collecting and cooling cavity water pipe is communicated with the dust collecting and cooling cavity interlayer 51. The dust collecting and cooling cavity 5 has an outer wall and an inner wall, and the dust collecting and cooling cavity interlayer 51 is formed between the outer wall and the inner wall. Water or cooling gas and cooling liquid can be injected into the dust collecting and cooling cavity interlayer 51 through the dust collecting and cooling cavity water pipe, so that the tail gas is cooled when contacting the inner wall. A dust collecting and cooling cavity water inlet and a dust collecting and cooling cavity water outlet are arranged on the dust collecting and cooling cavity water pipe. The temperature of the tail gas after plasma treatment is still very high, and direct discharge may cause damage to subsequent equipment. By using a cooling medium such as water, cooling gas or cooling liquid in the dust collecting and cooling cavity interlayer 51, the high-temperature tail gas can be effectively cooled. As the temperature of the tail gas decreases, the particulate matter carried therein is more likely to condense and settle, reducing the particulate matter load in subsequent processing steps and improving the overall purification efficiency.

[0036] As Figure 8 and Figure 9 shown, the first water tank 71 includes a water tank shell 711 and baffles 714 staggered within the first water tank 71, and L-shaped pipe mounting ports 713 and adsorption cartridge mounting ports 712 are provided on the water tank shell 711. The L-shaped pipe mounting ports 713 are used to connect the L-shaped inlet pipe, and the L-shaped pipe mounting ports 713 are connected to the L-shaped inlet pipe through a corrugated pipe; the adsorption cartridge mounting ports 712 are used to connect the adsorption cartridges, and a high-vacuum swing valve is connected between the first L-shaped inlet pipe 61 and the corrugated pipe. The corrugated pipe provides good sealing and flexible connection, can absorb thermal expansion and contraction caused by temperature changes or other factors, and ensures the stability and reliability of the system. The valve can adjust the gas flow as needed, and can maintain good sealing performance under different pressure conditions, enhancing the flexibility and response speed of the entire system.

[0037] The staggered baffles 714 force the gas to take a longer and more tortuous path inside the water tank, increasing the contact time and area of the gas with the water. This helps to more fully remove soluble contaminants or larger particulate matter. If the water tank shell 711 is made of transparent material or provided with observation windows, the operator can directly view the internal situation, facilitating monitoring and adjusting operating parameters.

[0038] As Figure 10 shown, the first adsorption cartridge 91 includes a filter screen and an adsorbent, and the second adsorption cartridge 92 has the same structure as the first adsorption cartridge 91. The first adsorption cartridge 91 includes a filter screen and an adsorbent, and the second adsorption cartridge 92 has the same structure as the first adsorption cartridge 91. The filter screen can remove larger particulate matter or droplets, preventing these impurities from entering the adsorbent layer and ensuring the effective operation of the adsorbent. The adsorbent is used to capture harmful components in the exhaust gas, such as volatile organic compounds, odor substances, etc., thereby achieving deep purification. The adsorbent of the first adsorption cartridge 91 and the second adsorption cartridge 92 uses adsorption balls, which are placed between the two filter screens. Adsorption balls usually have a larger specific surface area, which can provide more active sites to capture harmful substances. This increases the adsorption capacity per unit volume, improving the removal efficiency of harmful components in the exhaust gas. The adsorption balls have a regular shape and are easy to fill, forming a relatively uniform layered structure between the two filter screens. This arrangement ensures uniform gas flow throughout the adsorption layer, avoiding the problem of excessive load or insufficient adsorption in local areas. The filter screen can effectively intercept larger particulate matter or droplets, preventing these impurities from entering the adsorbent layer. This not only protects the adsorbent from clogging, but also ensures that its surface remains clean, maintaining good adsorption performance.

[0039] The gas collecting cylinder 8 is connected to the first and second adsorption cylinders 91 and 92 through corrugated pipes and high-vacuum swing valves. The high-vacuum swing valves can flexibly adjust the gas flow according to actual needs, achieving precise control of the gas flow. This helps to optimize the operating efficiency of the entire system and ensure that each part works in the best state. The high-vacuum swing valves can adapt to a wide range of pressures and maintain stable performance even under pressure fluctuations, making the system more durable and reliable.

[0040] The housing 1 is provided with a door body 11, a display screen 12, control buttons 13, and a heat dissipation mesh 14.

[0041] The main cavity 3 is provided with a protective cover 32. The protective cover 32 can effectively prevent the operator or other personnel from accidentally contacting the main cavity 3, especially in the high-temperature area generated when the plasma torch device 30 is working, to avoid the risk of burns or burns. During the treatment of harmful waste gas, sparks, arcs, or other potential hazards may occur. The protective cover can isolate these hazards from the outside world, reducing the occurrence of safety accidents.

[0042] Two water tanks and adsorption cylinders can work simultaneously, allowing the waste gas stream to be divided into two parts for processing. This not only increases the capacity of a single treatment but also shortens the overall processing time, improving the system's throughput. Even if one of the water tanks or adsorption cylinders needs maintenance or fails, the other can continue to operate, ensuring the continuity and stability of the processing process.

[0043] The following is the working process of the device:

[0044] Introduction of process gas: Process gas waste gas enters the device through the gas inlet pipe assembly 2. The gas inlet pipe assembly includes two sets of gas inlet pipes, each set containing a straight gas inlet pipe 21 and a gas pipe assembly composed of a first gas pipe 221, a second gas pipe 222, a main gas pipe 223, and a three-way pneumatic valve 224. If necessary, oxygen, air, or other combustion-supporting gases can be injected into the device through the branch openings on the main gas pipe 223 and the straight gas inlet pipe 21 to assist the processing process.

[0045] Plasma treatment: The waste gas enters the main cavity 3, where the plasma torch device 30 is installed. After the plasma torch device is started, a high-temperature, jet-like plasma arc is formed. This arc ionizes, bombards, and decomposes the incoming process waste gas at high temperatures, converting complex molecules in the waste gas into active particles. For example, organic compounds are cracked into water and carbon dioxide and other relatively simple harmless substances.

[0046] Cooling and separation: the gas after plasma treatment flows into the reaction chamber 4. At this stage, the gas continues to react chemically and is cooled by the cooling system in the reaction chamber interlayer 41, 42. Then, the gas enters the dust collection cooling chamber 5, which is further cooled and the solid particles possibly existing therein are settled. The dust collection cooling chamber is also equipped with a cooling system to ensure the appropriate temperature.

[0047] Water washing pretreatment: the cooled gas is divided into two paths and enters the corresponding first water tank 71 and second water tank 72 through the first L-shaped gas inlet pipe 61 and the second L-shaped gas inlet pipe 62. The water tank is internally provided with staggered baffles 714 for increasing the contact opportunity of the gas with water and helping to remove some soluble pollutants or larger particulate matters.

[0048] Adsorption purification: the gas after water washing pretreatment enters the first adsorption cylinder 91 and the second adsorption cylinder 92. Each adsorption cylinder contains a filter screen and an adsorbent such as an adsorption ball inside, which can effectively capture residual small-molecule harmful components such as volatile organic compounds and other odor substances. The filter screen prevents larger particulate matters or liquid droplets from entering the adsorbent layer, protecting the adsorbent from being blocked, thereby ensuring its long-term efficient work.

[0049] Emission standard gas: finally, the clean gas after the above-mentioned multi-step treatment is collected into the gas collection cylinder 8 and is safely discharged to the outside environment or the plant central system through the acid discharge pipe 80 or other exhaust pipes, ensuring that the discharged gas meets the environmental protection standards.

[0050] During the whole process, the components are connected through flanges, and corrugated pipes and high-vacuum swing valves are used between the key parts such as the gas inlet pipe and the water tank, the adsorption cylinder and the gas collection cylinder to maintain the stability and flexibility of the system. In addition, the shell 1 is also provided with a door body 11, a display screen 12, control buttons 13 and a heat dissipation net 14, so as to facilitate the operator to monitor and maintain the equipment.

[0051] It should be noted that the adsorbent, adsorption ball and the like in the embodiment are all general standard parts or components known to those skilled in the art, and their structure and principle can be known by those skilled in the art through technical manuals or through conventional experimental methods.

[0052] The utility model has been described above by way of example, but the utility model is not limited to the above-mentioned specific embodiments, and any modification or modification based on the utility model falls within the scope of the utility model claimed.

Claims

1. A twin-tube plasma adsorber apparatus, characterized by: The utility model provides a kind of plasma cutting machine, including shell (1), air pipe assembly (2), main cavity (3), reaction cavity (4), dust collecting cooling cavity (5), first L-shaped air inlet pipe (61), second L-shaped air inlet pipe (62), first water tank (71), second water tank (72), gas collecting cylinder (8), first adsorption cylinder (91) and second adsorption cylinder (92);The air pipe assembly (2) is connected on main cavity (3), plasma torch device (30) is installed on the main cavity (3), the main cavity (3) is sequentially flange connected reaction cavity (4) and dust collecting cooling cavity (5) below, the dust collecting cooling cavity (5) is connected first L-shaped air inlet pipe (61), second L-shaped air inlet pipe (62), first L-shaped air inlet pipe (61) is connected first water tank (71) by pipeline, second L-shaped air inlet pipe (62) is connected second water tank (72) by pipeline, first water tank (71), second water tank (72) are connected first adsorption cylinder (91) and second adsorption cylinder (92) respectively, first adsorption cylinder (91) and second adsorption cylinder (92) are connected gas collecting cylinder (8), acid discharge pipe (80) is provided on the gas collecting cylinder (8).

2. A twin-cell plasma adsorber device according to claim 1, wherein The air pipe assembly (2) includes two groups of air pipes, the air pipe includes air straight pipe (21) and air pipe assembly, the air pipe assembly includes first air pipe (221), second air pipe (222), main air pipe (223) and three-way pneumatic valve (224), the openings of the three-way pneumatic valve (224) are connected with the first air pipe (221), the second air pipe (222) and the main air pipe (223) respectively.

3. A twin-cell plasma adsorber device according to claim 2, wherein The main cavity (3) is provided with a main cavity interlayer (31), and a main cavity water pipe is arranged on the main cavity (3), and an outlet of the main cavity water pipe is communicated with the main cavity interlayer (31).

4. A twin-cell plasma adsorber device according to claim 3, wherein The reaction cavity (4) is provided with a first reaction cavity interlayer (41) and a second reaction cavity interlayer (42), and a reaction cavity water pipe is arranged on the reaction cavity (4), and an outlet of the reaction cavity water pipe is communicated with the first reaction cavity interlayer (41).

5. A twin-cell plasma adsorber device according to claim 4, wherein The dust collecting cooling cavity (5) is provided with a dust collecting cooling cavity interlayer (51), and a dust collecting cooling cavity water pipe is arranged in the dust collecting cooling cavity (5), and an outlet of the dust collecting cooling cavity water pipe is communicated with the dust collecting cooling cavity interlayer (51).

6. A twin-cell plasma adsorber device according to claim 1, wherein The first water tank (71) includes a water tank shell (711) and a baffle (714), the baffles (714) are staggered distributed in the first water tank (71), and an L-shaped pipe mounting port (713) and an adsorption cylinder mounting port (712) are arranged on the water tank shell (711).

7. A twin chamber plasma adsorber device according to claim 1, wherein The first adsorption cylinder (91) includes a filter screen and an adsorbent, and the second adsorption cylinder (92) has the same structure as the first adsorption cylinder (91).

8. A twin-cell plasma adsorber device according to claim 1, wherein The gas collecting cylinder (8) is provided with a bellows and a high-vacuum swing valve between the first adsorption cylinder (91) and the second adsorption cylinder (92).

9. A twin-cell plasma adsorber device according to claim 8, wherein The shell (1) is provided with a door body (11), a display screen (12), control buttons (13) and a heat dissipation net (14).

10. A twin-cell plasma adsorber device according to claim 1, wherein The main cavity (3) is provided with a protective cover (32).

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