Row type plasma cracking oxidation reactor

Abstract

The utility model discloses a row type plasma cracking oxidation reactor, and relates to the technical field of waste gas treatment. The mounting box comprises a mounting box body, rectangular grooves are formed in the two sides of the interior of the mounting box body, a drying box is arranged in the mounting box, butt joint grooves are formed in the two sides of the drying box, and first vent holes are formed in the two butt joint grooves; one side of each rectangular groove is provided with an extrusion type gas control assembly used for controlling one-way on-off of gas, the first vent holes are used in cooperation with the extrusion type gas control assemblies, and by arranging the mounting box body, a mounting foundation is provided for other parts; the internal rectangular groove provides space for installation of the drying box and arrangement of the extrusion type gas control assembly and the clamping assembly, the butt joint groove is matched with the extrusion type gas control assembly, so that the gas conveying hole communicates with the first vent hole, a gas passage is achieved, and the extrusion type gas control assembly can accurately control one-way circulation and blocking of gas.

Description

Technical Field

[0001] This utility model relates to the field of waste gas treatment technology, specifically to a cascade plasma pyrolysis oxidation reactor. Background Technology

[0002] With rapid industrial development, the pollution problems of volatile organic compounds (VOCs) and odorous gases generated by industries such as petrochemicals, pharmaceuticals, and leather are becoming increasingly serious. Although traditional low-temperature plasma technology can generate high-energy particles to degrade pollutants through dielectric barrier discharge (DBD), single-stage reactors suffer from two major bottlenecks: limited treatment efficiency and susceptibility to dust interference. Suspended particles in the exhaust gas easily adhere to the electrodes, leading to uneven discharge, and complex pollutants are difficult to completely mineralize in a single pyrolysis, with residual intermediate products potentially causing secondary pollution. The staged plasma pyrolysis oxidation reactor, through an innovative multi-reaction unit series design, constructs a gradient energy field to enhance free radical chain reactions. It also integrates a pretreatment module, breaking through the treatment barriers of traditional equipment for high-concentration, multi-component exhaust gases while maintaining the high efficiency and activity of non-equilibrium plasma. This provides a more engineering-adaptable solution for the deep purification of industrial exhaust gases.

[0003] According to Chinese Patent No. CN213433767U, a cascade-type plasma pyrolysis oxidation reactor is disclosed, including a shell and a spray box. An external treatment liquid is connected to an inlet pipe, allowing the treatment liquid to be sprayed out through atomizing nozzles on the lower surface of the spray plate. This atomized treatment liquid provides preliminary treatment to the waste gas and facilitates the adsorption of fine dust in the waste gas. The atomized treatment liquid is then discharged through an outlet pipe, preventing fine dust from entering the plasma chamber and adsorbing onto the plasma disk. The spray box pre-treats the waste gas, and the pre-treated waste gas is dried by a desiccant before entering the plasma chamber, where the plasma disk further pyrolyzes and oxidizes the waste gas, thereby improving the treatment effect of this invention and making the waste gas treatment more thorough.

[0004] In the above solution, it was found during use that the connecting pipe in the reactor uses a fixed filling structure to encapsulate the desiccant. Its internal space lacks modular design, which means that after the desiccant is saturated, the flange connection parts must be completely disassembled before it can be replaced, which increases maintenance time and labor costs. At the same time, replacing the desiccant requires stopping the equipment operation. Frequent maintenance leads to production interruption, affecting the continuous operation of the waste gas treatment system and reducing treatment efficiency. Utility Model Content

[0005] To address the aforementioned problems, this invention provides a cascade-type plasma pyrolysis oxidation reactor, which has the advantage of enabling rapid replacement of the drying chamber without stopping the reactor, thus solving the problem of the inability to quickly replace the desiccant and the need to suspend the reactor during replacement.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a staged plasma pyrolysis oxidation reactor, comprising a mounting box body, on both sides of which are fixedly installed with ventilation pipes, and on both sides of the interior of the mounting box body are rectangular grooves. A drying box is installed inside the mounting box, with protrusions on both sides of the drying box and docking grooves on both sides of the drying box. A first ventilation hole is provided inside the two docking grooves. Inclined sliding grooves are provided on both sides of the drying box near the bottom of the docking grooves. A snap-fit ​​groove is provided on both sides of the drying box. A squeeze-type gas control component for controlling the one-way flow of gas is provided on one side of each of the two rectangular grooves. The first ventilation hole is used in conjunction with the squeeze-type gas control component. A snap-fit ​​component for quickly fixing the mounting box body is provided inside each of the two rectangular grooves. The snap-fit ​​groove is used in conjunction with the snap-fit ​​component.

[0007] As a preferred technical solution of this utility model, the extrusion gas control component includes a movable hole, which is opened on one side of the inner side of the rectangular groove. A control tube is movably installed inside the movable hole. A limit plate is fixedly installed at one end of the control tube. The limit plate is movably sleeved inside the air passage. A first spring is fixedly installed on one side of the limit plate. The other end of the first spring is fixedly installed on one side of the mounting box body. The control tube has an air delivery hole. Two sealing rings are fixedly installed on the outer side of the control tube.

[0008] As a preferred technical solution of this utility model, the snap-fit ​​assembly includes two mounting slots, which are symmetrically opened on both sides of the inside of the rectangular slot. A second spring is fixedly installed on one side of the inside of the two mounting slots, and a snap-fit ​​block is fixedly installed on the other end of the second spring.

[0009] As a preferred technical solution of this utility model, the first spring is initially in its original length state, and the air delivery hole is located inside the movable hole.

[0010] As a preferred technical solution of this utility model, a rubber ring is fixedly installed on one side of the inner side of the docking groove, and the docking groove is set at an angle near the bottom.

[0011] As a preferred technical solution of this utility model, the snap-fit ​​groove is arranged in an isosceles trapezoidal shape, the snap-fit ​​block is arranged in an isosceles trapezoidal shape, and the snap-fit ​​groove and the snap-fit ​​block are adapted to each other.

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

[0013] By cooperating with the rectangular grooves on both sides of the drying chamber, precise positioning and convenient installation are achieved during the drying chamber's installation. During this process, the inclined sliding groove squeezes and pushes the control tube, causing it to overcome the elastic force of the first spring and move the air inlet into the ventilation pipe. At the same time, the sealing ring blocks the gap between the movable hole and the control tube to prevent air leakage. In this way, the exhaust gas in the ventilation pipe can smoothly enter the drying chamber through the air inlet, control tube, and first ventilation hole. The compression-type gas control component plays a key role here. When the drying chamber needs to be replaced, simply remove the drying chamber, and the control tube resets under the action of the first spring, causing the air inlet to return to the movable hole. The sealing ring near the limit plate quickly seals the gap between the movable hole and the control tube, blocking the gas passage, while other parts of the equipment can continue to operate. This avoids the interruption of the exhaust gas treatment system caused by the replacement of desiccant in traditional equipment, greatly ensuring the continuity of treatment and improving treatment efficiency.

[0014] In the snap-fit ​​assembly, the second spring in the mounting slot connects to the isosceles trapezoidal snap-fit ​​block, which is compatible with the isosceles trapezoidal snap-fit ​​grooves on both sides of the drying box. During installation, the snap-fit ​​block quickly snaps into the snap-fit ​​groove under the action of the second spring, achieving a stable installation. When the desiccant is saturated and needs to be replaced, there is no need to completely disassemble the flange connection components as with traditional equipment. Simply overcome the spring force of the second spring to disengage the snap-fit ​​block from the snap-fit ​​groove, and the drying box can be easily removed for replacement. This modular design greatly reduces maintenance time and labor costs, improves the maintainability of the equipment, and ensures that the waste gas treatment work can be carried out efficiently and at low cost. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of the mounting box of this utility model;

[0016] Figure 2 This is a schematic diagram of the rectangular groove structure of this utility model;

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

[0018] Figure 4 This is a schematic diagram of the cross-sectional structure of the mounting box body of this utility model;

[0019] Figure 5 This is a schematic diagram of the control tube structure of this utility model;

[0020] Figure 6 This is a schematic diagram of the snap-fit ​​assembly structure of this utility model.

[0021] Reference numerals: 1. Mounting box body; 101. Rectangular groove; 102. Mounting groove; 103. Second spring; 104. Snap-fit ​​block; 2. Ventilation pipe; 3. Drying oven; 301. Connecting groove; 302. First vent hole; 303. Inclined slide groove; 304. Snap-fit ​​groove; 4. Movable hole; 401. Control pipe; 402. Limiting plate; 403. First spring; 404. Air outlet; 405. Sealing ring. Detailed Implementation

[0022] The present invention will be further described below with reference to specific embodiments. However, those skilled in the art should understand that the detailed description given here with reference to the accompanying drawings is for better explanation. The structure of the present invention may exceed the limited embodiments described herein. Some equivalent alternatives or common means will not be described in detail here, but they still fall within the protection scope of this application.

[0023] Figures 1-6 This is the preferred embodiment of the present invention, which is described below in conjunction with the appendix. Figure 1 - Appendix Figure 6 The present invention will be further described below.

[0024] A cascade-type plasma pyrolysis oxidation reactor includes a mounting box body 1. Ventilation pipes 2 are fixedly installed on both sides of the mounting box body 1. Rectangular grooves 101 are formed on both sides of the interior of the mounting box body 1. A drying chamber 3 is installed inside the mounting box 1. The drying chamber 3 has protrusions on both sides and docking grooves 301 are formed on both sides of the drying chamber 3. First ventilation holes 302 are formed inside the two docking grooves 301. Inclined sliding grooves 303 are formed on both sides of the drying chamber 3 near the bottom of the docking grooves 301. Snap-fit ​​grooves 304 are formed on both sides of the drying chamber 3. A compression-type gas control component for controlling the one-way flow of gas is provided on one side of each of the two rectangular grooves 101. The first ventilation hole 302 is used in conjunction with the compression-type gas control component. Snap-fit ​​components for quickly fixing the mounting box body 1 are provided inside each of the two rectangular grooves 101. Snap-fit ​​grooves 304 are used in conjunction with the snap-fit ​​components.

[0025] In this embodiment, the mounting box body 1 provides a foundation and support for the installation of other components. The ventilation pipes 2 on both sides are fixedly connected to it for introducing and exporting waste gas. The internal rectangular groove 101 provides space for the installation of the drying chamber 3 and the installation of the compression-type gas control component and the snap-fit ​​component. The ventilation pipes 2 are responsible for the input and output of waste gas, allowing it to enter the reactor for treatment before being discharged. The drying chamber 3 dries the waste gas entering the reactor, removing moisture and improving the efficiency of the subsequent plasma pyrolysis oxidation reaction. The docking grooves 301, the first ventilation hole 302, the inclined sliding groove 303, and the snap-fit ​​grooves 304 on both sides cooperate with other components to achieve gas flow and secure installation. The docking groove 301 cooperates with the compression-type gas control component, squeezing the control pipe 401 after the drying chamber 3 is installed, connecting the gas outlet 404 with the first ventilation hole 302 to achieve a gas passage. The rubber ring on one side enhances the seal between the drying chamber 3 and the control pipe 401, preventing gas from entering the reactor. Leakage is prevented. A sloping surface near the bottom facilitates disassembly of the drying chamber 3. The first vent 302 serves as the channel for exhaust gas to enter and exit the drying chamber 3. It cooperates with the control pipe 401 in the compression-type gas control assembly to ensure that exhaust gas can smoothly enter the drying chamber 3 for drying. The sloping groove 303 compresses and pushes the control pipe 401, causing it to overcome the elastic force of the first spring 403 and change the position of the air outlet 404, thereby connecting the gas passage. The snap-fit ​​groove 304 is adapted to the snap-fit ​​block 104 in the snap-fit ​​assembly. When the drying chamber... 3. During installation, the snap-fit ​​block 104 snaps into the snap-fit ​​groove 304 under the action of the second spring 103, realizing the quick fixation of the drying box 3, which is convenient for disassembly and replacement. The squeeze-type gas control component can accurately control the one-way flow and blockage of gas. The snap-fit ​​component can quickly and firmly fix the drying box 3 in the mounting box body. When replacement is needed, the operator manually pulls the handle on the drying box 3 upward. By overcoming the elastic force of the second spring 103, the snap-fit ​​block 104 is disengaged from the snap-fit ​​groove 304, and the drying box 3 can be easily removed for replacement.

[0026] Specifically, the extrusion gas control assembly includes a movable hole 4, which is opened inside one side of the rectangular groove 101. A control tube 401 is movably installed inside the movable hole 4. A limit plate 402 is fixedly installed at one end of the control tube 401. The limit plate 402 is movably sleeved inside the ventilation pipe 2. A first spring 403 is fixedly installed on one side of the limit plate 402. The other end of the first spring 403 is fixedly installed on one side of the mounting box body 1. The control tube 401 has an air delivery hole 404. Two sealing rings 405 are fixedly installed on the outside of the control tube 401.

[0027] In this embodiment, by providing a movable hole 4, the control tube 401 has room to move. The control tube 401 moves to change the position of the air outlet 404, thereby controlling the flow and blockage of gas. When the drying chamber 3 is installed, it is squeezed and moved, so that the air outlet 404 connects with the ventilation pipe 2 and the first ventilation hole 302, guiding the exhaust gas into the drying chamber 3. When the drying chamber 3 is removed, it is reset under the action of the first spring 403, and the air outlet 404 returns to the movable hole 4, blocking the gas passage. The limiting plate 402 restricts the movement range of the control tube 401 and provides an installation position for the first spring 403, so that the first spring 403 can apply elastic force to the control tube 401 to control its movement. In the initial state, the first spring 403 keeps the control tube 401 with the air outlet 404 in the position inside the movable hole 4, blocking the gas passage. The device is compressed during installation, storing elastic potential energy. When the drying chamber 3 is removed, this elastic potential energy is released, pushing the control tube 401 to reset and restoring the gas blocking state. The gas outlet 404 is the key inlet for exhaust gas to enter the control tube 401. Its position change directly determines whether exhaust gas can enter the control tube 401 and then the drying chamber 3. The two sealing rings 405 play a key sealing role at different stages. The sealing ring 405 near the docking groove 301 tightly blocks the gap between the movable hole 4 and the control tube 401 after the control tube 401 moves into place, preventing exhaust gas leakage and ensuring that the exhaust gas enters the drying chamber 3 along the predetermined path. The sealing ring 405 near the limit plate 402 seals the gap between the movable hole 4 and the control tube 401 when the control tube 401 resets, further blocking the gas passage and ensuring the safety and stability of the equipment operation.

[0028] Specifically, the snap-fit ​​assembly includes two mounting slots 102, which are symmetrically opened on both sides of the inside of the rectangular slot 101. A second spring 103 is fixedly installed on one side of the inside of the two mounting slots 102, and a snap-fit ​​block 104 is fixedly installed on the other end of the second spring 103.

[0029] In this embodiment, by setting the mounting groove 102, symmetrically opened on both sides inside the rectangular groove 101, a stable mounting position is provided for the second spring 103 and the snap-fit ​​block 104. The second spring 103 provides elastic force to the snap-fit ​​block 104 and is the power source for the snap-fit ​​action. During the installation of the drying oven 3, when the snap-fit ​​groove 304 of the drying oven 3 approaches the snap-fit ​​block 104, the second spring 103 pushes the snap-fit ​​block 104 to quickly snap into the snap-fit ​​groove 304, realizing the quick fixation of the drying oven 3. When it is necessary to disassemble the drying oven 3, the operator manually pulls the handle on the top of the drying oven 3 to overcome the elastic force of the second spring 103, so that the snap-fit ​​block 104 is disengaged from the snap-fit ​​groove 304, making it convenient to remove the drying oven 3. Furthermore, the elastic force of the second spring 103 can ensure that the snap-fit ​​block 104 is stably snapped in the snap-fit ​​groove 304 in the non-disassembly state, maintaining the fixed state of the drying oven 3.

[0030] Specifically, the first spring 403 is initially in its original length state, and the air inlet 404 is located inside the movable hole 4.

[0031] In this embodiment, by setting the first spring 403 to its original length at its initial state, and the air outlet 404 located inside the movable hole 4, it is ensured that when the drying chamber 3 is not installed, the exhaust gas cannot enter the control pipe 401 from the air pipe 2 and then enter the drying chamber 3.

[0032] Specifically, a rubber ring is fixedly installed on one side of the inner side of the docking groove 301, and the docking groove 301 is set at an angle near the bottom.

[0033] In this embodiment, by setting a rubber ring fixed on one side inside the docking groove 301, after the drying box 3 is installed in place, it can fit tightly with the control pipe 401. Since the control pipe 401 achieves gas passage connection under the compression of the docking groove 301, the rubber ring can effectively fill the tiny gap between the control pipe 401 and the docking groove 301 to prevent exhaust gas leakage.

[0034] Specifically, the snap-fit ​​slot 304 is arranged in an isosceles trapezoidal shape, the snap-fit ​​block 104 is arranged in an isosceles trapezoidal shape, and the snap-fit ​​slot 304 and the snap-fit ​​block 104 are adapted to each other.

[0035] In this embodiment, when the drying box 3 needs to be disassembled, only a certain external force needs to be applied to the drying box 3 so that the locking block 104 overcomes the elastic force of the second spring 103, and the hypotenuse of the isosceles trapezoid will guide the locking block 104 to slide smoothly out of the locking groove 304.

[0036] In summary: During use, the drying chamber 3 is moved to the opening of the mounting box body 1, aligning both sides of the drying chamber 3 with the rectangular groove 101. The sides engage with the rectangular groove 101, guiding the drying chamber 3 to slide precisely and easily into the mounting box body 1. During this process, the inclined sliding grooves 303 on both sides of the drying chamber 3 slide along the rectangular groove 101, pushing the control tube 401 of the extrusion gas control assembly to move. The mating groove 301 is shallow and engages with the control tube 401. After the drying chamber 3 is installed, the control tube 401 is continuously compressed. The control tube 401 overcomes the elastic force of the first spring 403, causing the air outlet 404 to move from the movable hole 4 into the ventilation pipe 2. At this time, the two sealing rings 405 on the outside of the control tube 401 play their role. The sealing ring 405 near the inside of the rectangular groove 101 blocks the gap between the movable hole 4 and the control tube 401 to prevent air leakage. The exhaust gas in the ventilation pipe 2 enters the control tube 401 through the air outlet 404, and then enters the interior of the drying chamber 3 through the first ventilation hole 302 that connects with the control tube 401. The snap-fit ​​grooves 304 on both sides of the drying chamber 3 are close to the snap-fit ​​blocks 104 of the snap-fit ​​assembly. In the snap-fit ​​assembly, the second spring 103 in the mounting groove 102 pushes the isosceles trapezoidal snap-fit ​​block 104 into the snap-fit ​​groove 304, which is also an isosceles trapezoid, to achieve rapid fixation of the drying chamber 3. The rubber ring on one side of the mating groove 301 enhances the sealing performance. The exhaust gas continuously enters the drying chamber 3 through the ventilation pipe 2. Inside the drying chamber 3, the exhaust gas undergoes drying treatment to remove moisture, providing suitable conditions for the subsequent plasma pyrolysis oxidation reaction. The dried exhaust gas then flows from the other end of the drying chamber 3 through the first ventilation hole 302, the control pipe 401, and the gas delivery hole 404 back into the ventilation pipe 2, and is then transported to other gas treatment equipment. When the drying chamber 3 needs to be replaced, without stopping the equipment, the handle on the top of the drying chamber 3 is manually pulled to apply external force to the drying chamber 3, causing the locking block 104 to overcome the elastic force of the second spring 103 and disengage from the locking groove 304, thus releasing the fixed state of the drying chamber 3. The drying chamber 3 is then pulled out of the mounting box body 1. As the drying chamber 3 is pulled out, the control pipe 401 resets under the action of the first spring 403, and the gas delivery hole 404 returns to the movable hole 4. The sealing ring 405, located near the limit ring, seals the gap between the movable hole 4 and the control pipe 401 when the control pipe 401 is reset, further blocking the gas passage and ensuring the safety and stability of the equipment operation. At this time, although the drying chamber 3 is pulled out, other parts of the equipment continue to operate normally without affecting the equipment's operation. Reinstall the drying chamber 3 according to the installation steps, allowing both sides of the drying chamber 3 to slide into the rectangular groove 101. Repeat the process of connecting the gas passage and fixing the drying chamber 3, and the equipment can continue to operate normally.

[0037] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from its technical solution shall still fall within the protection scope of this utility model.

Claims

1. A row-level plasma cracking oxidation reactor, characterized in that, It comprises a mounting box body (1), both sides of the mounting box body (1) are fixedly installed with air ducts (2), both sides of the inside of the mounting box body (1) are provided with rectangular grooves (101), the inside of the mounting box body (1) is provided with a drying box (3), both sides of the drying box (3) are protruding, both sides of the drying box (3) are provided with butt grooves (301), the inside of the two butt grooves (301) is provided with a first air hole (302), both sides of the drying box (3) are provided with inclined sliding grooves (303) near the bottom of the butt grooves (301), both sides of the drying box (3) are provided with clamping grooves (304), one side of the two rectangular grooves (101) is provided with an extrusion type gas control assembly for controlling the on-off of gas, the first air hole (302) is used in cooperation with the extrusion type gas control assembly, the inside of the two rectangular grooves (101) is provided with a clamping assembly for quickly fixing the mounting box body, and the clamping assembly is used in cooperation with the clamping assembly.

2. The row-level plasma cracking oxidation reactor according to claim 1, characterized in that, The extrusion type gas control assembly comprises a movable hole (4), the movable hole (4) is provided on one side of the inside of the rectangular groove (101), a control pipe (401) is movably installed in the inside of the movable hole (4), one end of the control pipe (401) is fixedly installed with a limiting disc (402), the limiting disc (402) is movably sleeved in the inside of the air duct (2), one side of the limiting disc (402) is fixedly installed with a first spring (403), the other end of the first spring (403) is fixedly installed with the mounting box body (1), the control pipe (401) is provided with a gas inlet hole (404), and two sealing rings (405) are fixedly installed on the outside of the control pipe (401).

3. The row-level plasma cracking oxidation reactor according to claim 2, characterized in that, The clamping assembly comprises two installation grooves (102), the two installation grooves (102) are symmetrically provided on both sides of the inside of the rectangular groove (101), a second spring (103) is fixedly installed on one side of the inside of the two installation grooves (102), and a clamping block (104) is fixedly installed on the other end of the second spring (103).

4. The row-level plasma cracking oxidation reactor according to claim 2, characterized in that, The first spring (403) is in an original length state in the initial state, and the gas inlet hole (404) is located in the inside of the movable hole (4).

5. The row-level plasma cracking oxidation reactor according to claim 1, characterized in that, One side of the inside of the butt groove (301) is fixedly installed with a rubber ring, and the butt groove (301) is provided with an inclined surface near the bottom.

6. The row-level plasma cracking oxidation reactor according to claim 3, characterized in that, The clamping groove (304) is arranged in isosceles trapezoidal shape, the clamping block (104) is arranged in isosceles trapezoidal shape, and the clamping groove (304) is matched with the clamping block (104).

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