Electromagnetic heating coupling catalysis VOCs combustion purification equipment

Abstract

The invention relates to the technical field of waste gas treatment equipment, and discloses electromagnetic heating coupling catalysis VOCs combustion purification equipment which comprises a heating box, an air inlet is formed in the position, close to the bottom, of the surface of the heating box, an air outlet is formed in the top face of the heating box, and a support is connected to the inner wall of the heating box; a first heating coil is laid on the inner wall of the support, a catalyst is placed on the support, the two sides of the catalyst are covered with symmetrically-arranged drainage pieces, and a driving assembly is installed on the heating box and used for driving the two drainage pieces to rotate in the opposite directions at the same time. The driving assembly is used for driving the two drainage pieces to rotate reversely, a gas circulation flowing path can be formed, heated VOCs penetrate through the honeycomb-shaped catalyst for multiple times in the catalysis cavity, meanwhile, the door structure can limit gas from ascending disorderly, it is ensured that the gas makes full contact with the catalyst, the purification efficiency is improved, and the problem that purification is not thorough is effectively solved.

Description

Technical Field

[0001] This invention belongs to the technical field of waste gas treatment equipment, specifically relating to an electromagnetic heating coupled catalytic VOCs combustion purification device. Background Technology

[0002] VOCs generally refer to volatile organic compounds, sometimes also called VOCs, in which case it refers specifically to a single VOC, or it represents a collective concept of volatile organic compounds. These pollutants usually originate from coal, oil, and natural gas, or industries that use coal, oil, and natural gas as fuel or raw materials, including related chemical industries, which are the main sources of volatile organic compounds. These pollutants must never be directly emitted into the atmosphere. They should be emitted through closed equipment or in closed spaces. If closed systems are not possible, local gas collection measures should be taken, and the purified gas can then be emitted.

[0003] Existing combustion purification equipment involves passing gases (VOCs) from bottom to top through a catalyst for contact reaction. As a result, the gases (VOCs) flow in one direction and can only have one or a limited number of contacts with the catalyst. Some unreacted VOCs are directly discharged, resulting in incomplete purification and failure to meet strict environmental emission standards. Therefore, a device is designed to solve this problem. Summary of the Invention

[0004] The purpose of this invention is to provide a purification device with a simple structure and reasonable design in order to solve the above problems.

[0005] The present invention achieves the above objectives through the following technical solutions: This invention provides an electromagnetic heating coupled catalytic VOCs combustion purification device, including a heating box. An air inlet is provided on the surface of the heating box near the bottom, and an air outlet is provided on the top surface of the heating box. A support is connected to the inner wall of the heating box, and a heating coil is laid on the inner wall of the support. A catalyst is placed on the support, and symmetrically arranged flow guides are provided on both sides of the catalyst. A driving assembly is installed on the heating box to simultaneously drive the two sets of flow guides to rotate in opposite directions. A catalytic chamber is formed between the two sets of guide elements. When the lower ends of the two sets of guide elements contact each other, the gas enters the bottom of the heating chamber from the inlet and is heated by the heating element. When the drive component drives the two sets of guide elements to rotate and bring the top ends of the guide elements closer to each other, the gas heated at the bottom of the heating chamber rises and enters the catalytic chamber to react with the catalyst. After passing through the catalyst, the gas comes into contact with the inner top of the two sets of guide elements and flows along the surface of the guide elements to the bottom of the catalyst to form a circulating flow. When the drive component drives the two sets of guide elements to bring the bottom ends of the guide elements closer to each other, the gas after reaction enters the top of the heating chamber and is discharged from the outlet.

[0006] As a further optimization of the present invention, the catalyst is symmetrically arranged, the support includes a supporting part and a partition part, the supporting part is connected to the inner wall of the heating box, the partition part is connected to the upper surface of the supporting part, two sets of catalysts are placed on the supporting part and located on both sides of the partition part, and the heating coil is laid inside the partition part.

[0007] As a further optimization of the present invention, the catalyst is a honeycomb catalyst.

[0008] As a further optimization of the present invention, the flow guide includes a back plate and a side plate, the side plate is disposed on both sides of the catalyst, the side plate is connected to the edge of the back plate surface, and the back plate is connected to the drive end of the drive assembly.

[0009] As a further optimization of the present invention, the side plate is arranged in an arc shape.

[0010] As a further optimization of the present invention, an openable and closable door structure is provided between the two sets of drainage components and supports. The door structure is used to restrict the heated gas from rising between the drainage components and supports.

[0011] As a further optimization of the present invention, the door structure includes a rotating plate and a transmission component. A rotating shaft is provided on the rotating plate. One end of the rotating shaft is rotatably connected to the inner wall of the heating box, and the other end passes through the back plate and is rotatably connected to the inner wall of the heating box.

[0012] As a further optimization of the present invention, the transmission component includes a torsion spring, a transmission gear, and a rack. The surface of the back plate is provided with a mounting groove. The transmission gear is located in the mounting groove and is sleeved on the surface of the rotating shaft. The rack is connected to the inner wall of the mounting groove on the side away from the transmission gear. The transmission gear meshes with the rack. The torsion spring is sleeved on the surface of the rotating shaft on the side away from the transmission gear.

[0013] As a further optimization of the present invention, the driving assembly includes a driving component, a driving gear, a driven gear, a first synchronous pulley, and a second synchronous pulley. The driving component is connected to the surface of the heating chamber, and the driving end of the driving component extends into the interior of the heating chamber and is fixedly connected to a set of back plates. The driving gear is connected to the driving end of the driving component, and the driven gear is rotatably connected to the outer surface of the heating chamber. The driving gear meshes with the driven gear, and the driven gear is coaxially connected to the second synchronous pulley. Another set of back plates is connected to the second synchronous pulley via a rotating shaft, and the first synchronous pulley and the second synchronous pulley are connected by a synchronous belt.

[0014] The beneficial effects of this invention are as follows: This invention uses a driving component to drive two sets of guide elements to rotate in opposite directions, which can form a gas circulation flow path, allowing heated VOCs to pass through the honeycomb catalyst multiple times in the catalytic chamber. At the same time, the gate structure can restrict the disorderly upward movement of gas, ensuring that the gas and the catalyst are in full contact, thus improving the purification efficiency and effectively solving the problem of incomplete purification. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the heating box of the present invention; Figure 3 This is a schematic diagram showing the location of the driving component of the present invention; Figure 4 This is a schematic diagram of the drainage component structure of the present invention; Figure 5 This is a schematic diagram of the drive component structure of the present invention.

[0016] In the diagram: 1. Heating box; 2. Air inlet; 3. Air outlet; 4. Bracket; 41. Bearing part; 42. Partition; 5. Drive assembly; 51. Drive component; 52. Drive gear; 53. Driven gear; 54. Synchronous pulley one; 55. Synchronous pulley two; 56. Synchronous belt; 6. Drainage component; 61. Back plate; 62. Side plate; 7. Door structure; 71. Turning plate; 72. Rotating shaft; 73. Torsion spring; 74. Transmission gear; 75. Rack; 76. Mounting slot. Detailed Implementation

[0017] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0018] Example 1

[0019] refer to Figures 1 to 3 The structure shown is that of an electromagnetic heating coupled catalytic VOCs combustion purification device, including a heating box 1. The heating box 1 has an air inlet 2 near the bottom and an air outlet 3 on the top surface. The inner wall of the heating box 1 is connected to a support 4. A heating coil is laid on the inner wall of the support 4. The catalyst is placed on the support 4. Symmetrically arranged guide elements 6 are provided on both sides of the catalyst. A drive assembly 5 is installed on the heating box 1 to simultaneously drive the two sets of guide elements 6 to rotate in opposite directions. A catalytic chamber is formed between the two sets of guide elements 6. When the lower ends of the two sets of guide elements 6 come into contact, gas (VOCs) enters the bottom of the heating chamber 1 from the inlet 2. The gas is heated by the heating element. When the drive component 5 drives the two sets of guide elements 6 to rotate so that the top ends of the guide elements 6 are close to each other, the gas heated at the bottom of the heating chamber 1 rises and enters the catalytic chamber to react with the catalyst. After passing through the catalyst, the gas comes into contact with the inner top of the two sets of guide elements 6 and flows along the surface of the guide elements 6 to the bottom of the catalyst to form a circulating flow. When the drive component 5 drives the two sets of guide elements 6 so that the bottom ends of the guide elements 6 are close to each other, the gas after reaction enters the top of the heating chamber 1 and is discharged from the outlet 3.

[0020] Specifically, a heating coil is installed inside the heating element.

[0021] In this embodiment, the driving component 5 can be two sets of motors that drive two sets of diverting components 6 to rotate respectively.

[0022] refer to Figure 4 and Figure 5 The structure shown is such that the catalysts are symmetrically arranged. The support 4 includes a support part 41 and a partition part 42. The support part 41 is connected to the inner wall of the heating box 1, and the partition part 42 is connected to the upper surface of the support part 41. Two sets of catalysts are placed on the support part 41 and located on both sides of the partition part 42. The heating coil is laid inside the partition part 42.

[0023] It should be noted that heating coil one is mainly used to heat the catalyst.

[0024] Furthermore, the catalyst is a honeycomb catalyst.

[0025] Furthermore, the flow guide 6 includes a back plate 61 and a side plate 62. The side plate 62 covers both sides of the catalyst and is connected to the edge of the surface of the back plate 61. The back plate 61 is connected to the drive end of the drive assembly 5.

[0026] Heating coil three can be laid inside the side plate 62 to heat the catalyst and gas, thereby increasing the heating rate.

[0027] Furthermore, the side plate 62 is arc-shaped.

[0028] It should be noted that the inner wall of the heating box 1 is attached to the outer surface of the side plate 62 near the side plate 62.

[0029] In actual use, when the lower ends of the two sets of flow guides 6 come into contact, heating coil two heats the gas at the bottom of heating box 1, and heating coil three can also heat the gas to improve the gas heating efficiency.

[0030] Furthermore, each of the two sets of drainage components 6 and support 4 is provided with an openable and closable door structure 7, which is used to restrict the heated gas from rising between the drainage component 6 and support 4.

[0031] Furthermore, the door structure 7 includes a rotating plate 71 and a transmission component. A rotating shaft 72 is mounted on the rotating plate 71. One end of the rotating shaft 72 is rotatably connected to the inner wall of the heating box 1, and the other end passes through the back plate 61 and is rotatably connected to the inner wall of the heating box 1.

[0032] During its rotation, the rotating plate 71 causes the gas at the top of the catalytic chamber to flow to the bottom.

[0033] It should be noted that the catalyst can be arranged in multiple layers in the heating box 1 so that the gas can react fully with the catalyst. Of course, the drive component 5, the guide plate 6 and the door structure 7 also need to be set up to correspond to the multiple catalyst layers.

[0034] It should be further explained that after the gas in the lower catalytic chamber completes its circulation (i.e., the gas comes into contact with the catalyst multiple times for full catalysis, which can be called cyclic catalysis), the upper end of the guide element 6 corresponding to that layer moves away from each other, causing the gas in the catalytic chamber to rise to the upper catalytic chamber and catalyze with the upper catalyst. This continues until the gas passes through all the catalysts. By circulating the heated gas, the heated gas can come into full contact with the catalyst, thereby solving the problem of incomplete pollutant purification.

[0035] In other embodiments, the rotating plate 71 can be directly driven by a motor, but in order to save the overall manufacturing cost of the device, this embodiment provides a simple transmission component structure. Specifically, the transmission component includes a torsion spring 73, a transmission gear 74, and a rack 75. The surface of the back plate 61 is provided with a mounting groove 76. The transmission gear 74 is located in the mounting groove 76 and is sleeved on the surface of the rotating shaft 72. The rack 75 is connected to the inner wall of the mounting groove 76 away from the transmission gear 74. The transmission gear 74 meshes with the rack 75. The torsion spring 73 is sleeved on the surface of the rotating shaft 72 away from the transmission gear 74.

[0036] Specifically, the inner wall of the heating box 1 is provided with a groove, and the torsion spring 73 is located in the groove. This arrangement allows the side of the rotating plate 71 to contact the inner wall of the heating box 1.

[0037] It should be noted that when the lower ends of the two sets of guide members 6 are in contact, the torsion spring 73 is in an unstressed state. In this state, the two sides of the rotating plate 71 press against the surfaces of the support 4 and the side plate 62 respectively. When the drive assembly 5 drives the guide members 6 to rotate, causing the lower ends of the two sets of guide members 6 to gradually separate, the gas at the bottom of the heating box 1 rises into the catalytic chamber. When the upper ends of the two sets of guide members 6 are about to contact, the door structure 7 opens (i.e., the two sides of the rotating plate 71 do not press against the surfaces of the support 4 and the side plate 62). This setting can prevent the gas from rising between the support 4 and the side plate 62 when the lower ends of the two sets of guide members 6 have just separated.

[0038] In actual use, when the upper ends of the two sets of drainage components 6 gradually come into contact, the rack 75 gradually contacts the transmission gear 74, thereby driving the transmission gear 74 to rotate, which in turn causes the rotating plate 71 to rotate.

[0039] The equipment adopts an electromagnetic heating coupling design, which achieves precise heat distribution through multi-dimensional heating via heating coil one (heating catalyst), heating coil two (heating bottom gas), and heating coil three (side plate auxiliary heating), greatly improving the gas preheating and catalyst activation speed.

[0040] Example 2

[0041] This embodiment further improves upon Embodiment 1. To reduce the overall manufacturing cost of the device, a specific structure for the drive component 5 is provided. This structure is simple and practical. For details, please refer to... Figure 3 and Figure 5 As shown in the partial structure, the drive assembly 5 includes a drive member 51, a drive gear 52, a driven gear 53, a first synchronous pulley 54, and a second synchronous pulley 55. The drive member 51 is connected to the surface of the heating chamber 1, and the drive end of the drive member 51 extends into the interior of the heating chamber 1 and is fixedly connected to a set of back plates 61. The drive gear 52 is connected to the drive end of the drive member 51, and the driven gear 53 is rotatably connected to the outer surface of the heating chamber 1. The drive gear 52 meshes with the driven gear 53, and the driven gear 53 is coaxially connected to the first synchronous pulley 54. Another set of back plates 61 is connected to the second synchronous pulley 55 through a rotating shaft. The first synchronous pulley 54 and the second synchronous pulley 55 are connected by a synchronous belt 56.

[0042] Among them, the driving component 51 can be any kind of mechanical structure that can drive the diverting component 6 to rotate, specifically, it can be a stepper motor, servo motor, etc.

[0043] The embodiments described above are merely examples of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.

Claims

1. An electromagnetic heating coupled catalytic VOCs combustion purification device, comprising a heating chamber, characterized in that, An air inlet is provided on the surface of the heating box near the bottom, and an air outlet is provided on the top surface of the heating box. A support is connected to the inner wall of the heating box, and a heating coil is laid on the inner wall of the support. The catalyst is placed on the support, and symmetrically arranged guide elements are provided on both sides of the catalyst. A drive assembly is installed on the heating box to drive the two sets of guide elements to rotate in opposite directions at the same time. A catalytic chamber is formed between the two sets of guide elements. When the lower ends of the two sets of guide elements contact each other, the gas enters the bottom of the heating chamber from the inlet and is heated by the heating element. When the drive component drives the two sets of guide elements to rotate and bring the top ends of the guide elements closer to each other, the gas heated at the bottom of the heating chamber rises and enters the catalytic chamber to react with the catalyst. After passing through the catalyst, the gas comes into contact with the inner top of the two sets of guide elements and flows along the surface of the guide elements to the bottom of the catalyst to form a circulating flow. When the drive component drives the two sets of guide elements to bring the bottom ends of the guide elements closer to each other, the gas after reaction enters the top of the heating chamber and is discharged from the outlet.

2. The electromagnetic heating coupled catalytic VOCs combustion purification device according to claim 1, characterized in that: The catalysts are arranged symmetrically. The support includes a support part and a partition part. The support part is connected to the inner wall of the heating box, and the partition part is connected to the upper surface of the support part. Two sets of catalysts are placed on the support part and located on both sides of the partition part. The heating coil is laid inside the partition part.

3. The electromagnetic heating coupled catalytic VOCs combustion purification device according to claim 1, characterized in that: The catalyst is a honeycomb catalyst.

4. The electromagnetic heating coupled catalytic VOCs combustion purification device according to claim 1, characterized in that: The flow guide includes a back plate and a side plate. The side plate covers both sides of the catalyst and is connected to the edge of the back plate surface. The back plate is connected to the drive end of the drive assembly.

5. The electromagnetic heating coupled catalytic VOCs combustion purification device according to claim 1, characterized in that: The side panel is arc-shaped.

6. The electromagnetic heating coupled catalytic VOCs combustion purification device according to claim 1, characterized in that: Both sets of the drainage components and supports are provided with an openable and closable door structure, which is used to restrict the heated gas from rising between the drainage components and supports.

7. The electromagnetic heating coupled catalytic VOCs combustion purification device according to claim 6, characterized in that: The door structure includes a rotating plate and a transmission component. A rotating shaft is mounted on the rotating plate. One end of the rotating shaft is rotatably connected to the inner wall of the heating chamber, and the other end passes through the back plate and is rotatably connected to the inner wall of the heating chamber.

8. The electromagnetic heating coupled catalytic VOCs combustion purification device according to claim 7, characterized in that: The transmission component includes a torsion spring, a transmission gear, and a rack. The surface of the back plate has a mounting groove. The transmission gear is located in the mounting groove and is sleeved on the surface of the rotating shaft. The rack is connected to the inner wall of the mounting groove on the side away from the transmission gear. The transmission gear meshes with the rack. The torsion spring is sleeved on the surface of the rotating shaft on the side away from the transmission gear.

9. The electromagnetic heating coupled catalytic VOCs combustion purification device according to claim 1, characterized in that: The drive assembly includes a drive component, a drive gear, a driven gear, a first synchronous pulley, and a second synchronous pulley. The drive component is connected to the surface of the heating chamber, and the drive end of the drive component extends into the interior of the heating chamber and is fixedly connected to a set of back plates. The drive gear is connected to the drive end of the drive component, and the driven gear is rotatably connected to the outer surface of the heating chamber. The drive gear meshes with the driven gear, and the driven gear is coaxially connected to the second synchronous pulley. Another set of back plates is connected to the second synchronous pulley via a rotating shaft, and the first synchronous pulley and the second synchronous pulley are connected by a synchronous belt.

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