A novel catalytic oxidation reactor

Abstract

This utility model discloses a novel catalytic oxidation reactor, comprising a device body, with support legs fixedly installed at the four corners of the bottom of the device body. An inlet pipe and an outlet pipe are respectively installed at the top and bottom of the device body. A catalyst layer is installed inside the device body via a fixing assembly, with a side plate fixedly installed at one end of the catalyst layer. A baffle is provided at the end of the catalyst layer away from the side plate, and a first connecting block is fixedly installed on the side wall of the baffle. When replacing the catalyst layer, the catalyst layer is first disconnected from the device body, then the catalyst layer is slid out, and the baffle seals the chamber from which the catalyst layer has slid out. Then, a new catalyst layer is attached to one side of the baffle, and the catalyst layer is pushed inward to complete the replacement. Through this replacement method, the baffle blocks the chute, allowing for non-stop replacement, enabling the reactor to continue operating while the catalyst layer is being replaced, avoiding production interruptions and ensuring production continuity.

Description

Technical Field

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

[0002] Catalytic oxidation technology is widely used in the treatment of organic waste gas (VOCs), industrial tail gas purification, energy and chemical industries. Its core is to accelerate the oxidation reaction of oxygen and organic matter through the active sites on the catalyst surface to achieve the harmless transformation of pollutants.

[0003] A search revealed patent CN221107735U, a catalytic oxidation reactor, comprising a device body, a reactor shell, an upper discharge device, and a lower inlet device. The upper discharge device is installed at the top of the reactor shell, and the lower inlet device is installed at the bottom of the reactor shell. The reactor shell has a rectangular structure with a through-type internal structure. Inside the reactor shell, there are lower and upper grid support frames. A low-temperature catalyst layer is located on top of the lower grid support frame, and a uniformly distributed layer of random packing is located on top of the low-temperature catalyst layer. A high-temperature catalyst layer is located on top of the upper grid support frame. The surface of the reactor shell has several sets of reinforcing ribs distributed in a row at equal intervals. A manhole is provided on the upper side of the reactor shell, and lifting lugs are provided at both the front and rear ends of the top of the reactor shell. This device can perform multi-stage treatment of harmful substances in waste gas, thereby improving the purification effect.

[0004] Currently, mainstream catalytic oxidation reactors widely used in industrial production generally face the problem of catalyst deactivation after a period of use. Once the catalyst is deactivated, the reactor must be shut down for replacement, a process that is extremely cumbersome and consumes a lot of time and manpower. In addition, it will cause production line interruptions and affect production efficiency. Utility Model Content

[0005] The purpose of this invention is to provide a novel catalytic oxidation reactor to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a novel catalytic oxidation reactor, comprising a device body, wherein support legs are fixedly installed at the four corners of the bottom of the device body, and inlet pipes and outlet pipes are respectively installed at the top and bottom of the device body, and a catalyst layer is installed inside the device body through a fixing assembly, and a side plate is fixedly installed at one end of the catalyst layer.

[0007] A baffle is provided at the end of the catalyst layer away from the side plate. A first connecting block is fixedly installed on the side wall of the baffle. The first connecting block is embedded in the inner wall of the catalyst layer and is magnetically connected.

[0008] As a further preferred embodiment of this technical solution, guide shafts are slidably connected to the inner walls on both sides of the baffle, and the guide shafts are fixedly installed on the inner wall of the device body.

[0009] As a further preferred embodiment of this technical solution, a second connecting block is fixedly installed on the side wall of the baffle, and the second connecting block is magnetically connected to the inner wall of the device body.

[0010] As a further preferred embodiment of this technical solution, the fixing component includes threaded rods embedded in the inner wall of the device body. The threaded rods are evenly distributed, and each threaded rod has a first gear threadedly connected to its bottom. Each first gear is rotatably installed inside the catalyst layer. Each first gear has a rack plate meshing with one side of its side. One end of each rack plate is fixedly connected by a connecting plate. A handle is fixedly installed on one side of the connecting plate. The handle is located on one side of the side plate.

[0011] As a further preferred embodiment of this technical solution, a wind turbine blade is provided above the catalyst layer, and a first rotating shaft is fixedly connected to the inner wall of the wind turbine blade. The first rotating shaft is rotatably installed inside the device body, a second gear is fixedly installed at one end of the first rotating shaft, a third gear is meshed with the top end of the second gear, a second rotating shaft is fixedly installed on the inner wall of the third gear, and a schematic plate is fixedly connected to one end of the second rotating shaft. The schematic plate is set on the outer wall of the device body.

[0012] As a further preferred embodiment of this technical solution, each wind turbine blade is provided with multiple blades.

[0013] As a further preferred embodiment of this technical solution, the inner diameter of the third gear is ten times the inner diameter of the second gear, where N is a positive integer.

[0014] This invention provides a novel catalytic oxidation reactor, which has the following beneficial effects:

[0015] (1) This utility model connects the baffle and the catalyst layer through the first connecting block. When replacing the catalyst layer, the catalyst layer is first disconnected from the device body, and then the catalyst layer is slid out. When the catalyst layer moves outward, the baffle moves outward through the first connecting block. When the baffle slides to the bottom of the limiting groove, the catalyst layer continues to slide outward and separates from the baffle. The baffle blocks the chamber from which the catalyst layer slides out. Then, the new catalyst layer is attached to one side of the baffle. The catalyst layer is pushed inward, and the catalyst layer drives the baffle to slide into the device body. The catalyst layer is completely embedded into the device body, and then the catalyst layer is installed with the device body to complete the replacement. Through the above replacement method, the baffle blocks the groove for non-stop replacement, so that the reactor can continue to run while the catalyst layer is being replaced, avoiding production interruption and ensuring production continuity.

[0016] (2) By setting up a fixing component, when replacing the catalyst layer, the handle is first pulled outward. The movement of the handle drives the movement of the connecting plate, which in turn drives the movement of the rack plate. The movement of the rack plate drives the rotation of the first gear, which in turn drives the threaded rod to move downward, so that the threaded rod slides out from the inner wall of the device body. Then the catalyst layer is pulled outward for replacement. The replacement method is simple and convenient, which helps to improve the replacement efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic cross-sectional view of the overall structure of this utility model;

[0019] Figure 3 This is a schematic cross-sectional view of the catalyst layer structure of this utility model;

[0020] Figure 4 For the present utility model Figure 3 Enlarged schematic diagram of the structure at point A in the middle;

[0021] Figure 5 This is a schematic cross-sectional view of the device body of this utility model;

[0022] Figure 6 For the present utility model Figure 5 Enlarged schematic diagram of the structure at point B.

[0023] In the diagram: 1. Device body; 2. Support leg; 3. Inlet pipe; 4. Outlet pipe; 5. Catalyst layer; 6. Side plate; 7. Handle; 8. Threaded rod; 9. First gear; 10. Rack plate; 11. Connecting plate; 12. Baffle; 13. Guide shaft; 14. First connecting block; 15. Second connecting block; 16. Wind turbine blade; 17. First rotating shaft; 18. Second gear; 19. Third gear; 20. Second rotating shaft; 21. Schematic panel. Detailed Implementation

[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0025] This utility model provides a technical solution: such as Figures 1 to 6 As shown, in this embodiment, a novel catalytic oxidation reactor includes a device body 1. Support legs 2 are fixedly installed at the four corners of the bottom of the device body 1. An inlet pipe 3 and an outlet pipe 4 are respectively installed at the top and bottom of the device body 1. A catalyst layer 5 is installed inside the device body 1 through a fixing component. A side plate 6 is fixedly installed at one end of the catalyst layer 5.

[0026] A baffle 12 is provided at the end of the catalyst layer 5 away from the side plate 6. A first connecting block 14 is fixedly installed on the side wall of the baffle 12. The first connecting block 14 is embedded in the inner wall of the catalyst layer 5 and magnetically connected.

[0027] The existing patent CN221107735U discloses a catalytic oxidation reactor. This patent discloses the device body 1, support leg 2, discharge pipe 3, discharge pipe 4 and catalyst layer 5 proposed in this application. The technical means will not be described in detail here.

[0028] A sealing strip is provided on the side plate 6 near the device body 1;

[0029] The device body 1 has a limiting groove inside for the baffle 12 to slide, and the sliding distance of the baffle 12 is limited by the limiting groove.

[0030] When replacing the catalyst layer 5, first disconnect the catalyst layer 5 from the device body 1, then slide the catalyst layer 5 out. When the catalyst layer 5 moves outward, the first connecting block 14 drives the baffle 12 to move outward. When the baffle 12 slides to the bottom of the limiting groove, the catalyst layer 5 continues to slide outward and separates from the baffle 12. The baffle 12 seals the chamber from which the catalyst layer 5 slides out.

[0031] Then, the new catalyst layer 5 is attached to one side of the baffle 12. The catalyst layer 5 is pushed inward, and the catalyst layer 5 drives the baffle 12 to slide into the device body 1. After the catalyst layer 5 is completely embedded into the device body 1, the catalyst layer 5 is installed with the device body 1 to complete the replacement.

[0032] By using the above replacement method, the baffle 12 blocks the chute for non-stop replacement, allowing the reactor to continue operating while the catalyst layer 5 is being replaced, thus avoiding production interruption and ensuring production continuity.

[0033] like Figure 2 and Figure 3 As shown, guide shafts 13 are slidably connected to the inner walls on both sides of the baffle 12, and the guide shafts 13 are fixedly installed on the inner wall of the device body 1.

[0034] like Figure 3 As shown, a second connecting block 15 is fixedly installed on the side wall of the baffle 12, and the second connecting block 15 is magnetically connected to the inner wall of the device body 1.

[0035] The second connecting block 15 is magnetically connected to the inner wall of the limiting slide groove;

[0036] When replacing the baffle 12, when the baffle 12 moves to the bottom of the limiting slide groove, the second connecting block 15 is magnetically connected to it, so that the baffle 12 is firmly installed on one side, sealing the chamber from which the catalyst layer 5 slides out, and preventing the internal gas from escaping.

[0037] like Figure 2 , Figure 3 and Figure 4 As shown, the fixing component includes threaded rods 8 embedded in the inner wall of the device body 1. The threaded rods 8 are evenly distributed, and each threaded rod 8 is threaded to the bottom of a first gear 9. Each first gear 9 is rotatably installed inside the catalyst layer 5. Each first gear 9 is meshed with a rack plate 10 on one side. One end of each rack plate 10 is fixedly connected by a connecting plate 11. A handle 7 is fixedly installed on one side of the connecting plate 11. The handle 7 is located on one side of the side plate 6.

[0038] When replacing the catalyst layer 5, first pull the handle 7 outward. The movement of the handle 7 causes the connecting plate 11 to move, which in turn causes the rack plate 10 to move. The movement of the rack plate 10 causes the first gear 9 to rotate, which in turn causes the threaded rod 8 to move downward, allowing the threaded rod 8 to slide out from the inner wall of the device body 1. Then, the catalyst layer 5 is pulled outward for replacement. The replacement method is simple and convenient, which helps to improve the replacement efficiency.

[0039] like Figure 2 , Figure 3 and Figure 5 As shown, a wind turbine blade 16 is provided above the catalyst layer 5. A first rotating shaft 17 is fixedly connected to the inner wall of the wind turbine blade 16. The first rotating shaft 17 is rotatably installed inside the device body 1. A second gear 18 is fixedly installed at one end of the first rotating shaft 17. A third gear 19 is meshed with the top end of the second gear 18. A second rotating shaft 20 is fixedly installed on the inner wall of the third gear 19. A schematic plate 21 is fixedly connected to one end of the second rotating shaft 20. The schematic plate 21 is provided on the outer wall of the device body 1.

[0040] The need to replace the catalyst layer 5 is determined by observing the rotation speed of the schematic plate 21. During operation, when the gas flows upward after being catalyzed by the catalyst layer 5, it drives the impeller blade 16 to rotate. The rotation of the impeller blade 16 drives the rotation of the first rotating shaft 17, which in turn drives the rotation of the second gear 18. The rotation of the second gear 18 drives the rotation of the third gear 19, which in turn drives the rotation of the second rotating shaft 20. The rotation of the second rotating shaft 20 then drives the rotation of the schematic plate 21.

[0041] When the catalyst layer 5 gradually deactivates after a period of use, high molecular weight organic matter and hydrocarbons in the reactants or products will deposit on the catalyst surface or in the pores, forming a carbon layer or coke, which will block the gas flow channel. At this time, the rotation speed of the impeller blade 16 will gradually decrease, and the rotation speed of the external indicator plate 21 will also decrease. The staff can observe the rotation speed of the indicator plate 21 to know whether the catalyst layer 5 needs to be replaced, so as to facilitate timely replacement.

[0042] like Figure 2 , Figure 3 and Figure 5 As shown, each of the wind turbine blades 16 is equipped with multiple blades.

[0043] The impeller blades 16 are staggered at multiple locations above the catalyst layer 5. Since the reaction in the catalyst layer 5 within the device body 1 may not be completely uniform, differences in reactant concentration, temperature, flow rate, and other factors may exist in different areas, leading to inconsistent catalyst activity and usage. By placing the impeller blades 16 in multiple areas, the reaction status in these different areas can be monitored separately, obtaining more comprehensive reaction information.

[0044] As it is Figure 6 As shown, the inner diameter of the third gear 19 is ten times the inner diameter of the second gear 18, and N is a positive integer.

[0045] By adjusting the gear ratio between the second gear 18 and the third gear 19, the second gear 18 rotates for ten N revolutions while the third gear 19 rotates for one revolution. This reduces the rotational speed of the indicator plate 21, preventing the impeller blade 16 from rotating at high speed due to the impact of the reactant material in the catalytic oxidation reactor. High-speed rotation of the impeller can easily cause motion ambiguity when observed by staff, making it difficult to accurately judge its rotational state, such as its speed and stability. Reducing the rotational speed of the impeller blade 16 through differential gear transmission effectively reduces this motion ambiguity, allowing staff to clearly see the rotation of the impeller blade 16 and thus more accurately obtain information about the working status of the catalyst layer 5.

[0046] This invention provides a novel catalytic oxidation reactor, the specific working principle of which is as follows:

[0047] During operation, when the gas flows upward after being catalyzed by the catalyst layer 5, it drives the impeller blade 16 to rotate. The rotation of the impeller blade 16 drives the first rotating shaft 17 to rotate, the rotation of the first rotating shaft 17 drives the second gear 18 to rotate, the rotation of the second gear 18 drives the third gear 19 to rotate, the rotation of the third gear 19 drives the second rotating shaft 20 to rotate, and the rotation of the second rotating shaft 20 drives the schematic plate 21 to rotate.

[0048] When the catalyst layer 5 gradually deactivates after a period of use, high molecular organic matter and hydrocarbons in the reactants or products will deposit on the catalyst surface or in the pores, forming a carbon layer or coke, which will block the gas flow channel. At this time, the rotation speed of the impeller blade 16 will gradually decrease, and the rotation speed of the external indicator plate 21 will also decrease. The staff can observe the rotation speed of the indicator plate 21 to know whether the catalyst layer 5 needs to be replaced.

[0049] When replacing the catalyst layer 5, first pull the handle 7 outward. The movement of the handle 7 causes the connecting plate 11 to move. The movement of the connecting plate 11 causes the rack plate 10 to move. The movement of the rack plate 10 causes the first gear 9 to rotate. The rotation of the first gear 9 causes the threaded rod 8 to move downward, so that the threaded rod 8 slides out from the inner wall of the device body 1. Then, the catalyst layer 5 is pulled outward.

[0050] When the catalyst layer 5 moves outward, the first connecting block 14 drives the baffle 12 to move outward. When the baffle 12 slides to the bottom of the limiting groove, the catalyst layer 5 continues to slide outward and separates from the baffle 12. The baffle 12 then seals the chamber from which the catalyst layer 5 slides out.

[0051] Then, the new catalyst layer 5 is attached to one side of the baffle 12. The catalyst layer 5 is pushed inward, and the catalyst layer 5 drives the baffle 12 to slide into the device body 1. After the catalyst layer 5 is fully embedded into the device body 1, the handle 7 is pushed inward. Similarly, the threaded rod 8 is embedded into the device body 1 to complete the replacement.

[0052] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A novel catalytic oxidation reactor, comprising a device body (1), characterized in that: Support legs (2) are fixedly installed at the four corners of the bottom of the device body (1). Inlet pipe (3) and outlet pipe (4) are installed at the top and bottom of the device body (1) respectively. A catalyst layer (5) is installed inside the device body (1) through a fixing component. A side plate (6) is fixedly installed at one end of the catalyst layer (5). A baffle (12) is provided at one end of the catalyst layer (5) away from the side plate (6). A first connecting block (14) is fixedly installed on the side wall of the baffle (12). The first connecting block (14) is embedded in the inner wall of the catalyst layer (5) and magnetically connected.

2. The novel catalytic oxidation reactor according to claim 1, characterized in that: The inner walls on both sides of the baffle (12) are slidably connected with guide shafts (13), and the guide shafts (13) are fixedly installed on the inner wall of the device body (1).

3. The novel catalytic oxidation reactor according to claim 1, characterized in that: A second connecting block (15) is fixedly installed on the side wall of the baffle (12), and the second connecting block (15) is magnetically connected to the inner wall of the device body (1).

4. The novel catalytic oxidation reactor according to claim 1, characterized in that: The fixing component includes threaded rods (8) embedded in the inner wall of the device body (1). The threaded rods (8) are evenly distributed. Each threaded rod (8) has a first gear (9) threadedly connected to its bottom. Each first gear (9) is rotatably installed inside the catalyst layer (5). Each first gear (9) has a rack plate (10) meshing with one side. One end of each rack plate (10) is fixedly connected by a connecting plate (11). A handle (7) is fixedly installed on one side of the connecting plate (11). The handle (7) is located on one side of the side plate (6).

5. A novel catalytic oxidation reactor according to claim 1, characterized in that: A wind turbine blade (16) is provided above the catalyst layer (5). A first rotating shaft (17) is fixedly connected to the inner wall of the wind turbine blade (16). The first rotating shaft (17) is rotatably installed inside the device body (1). A second gear (18) is fixedly installed at one end of the first rotating shaft (17). A third gear (19) is meshed with the top end of the second gear (18). A second rotating shaft (20) is fixedly installed on the inner wall of the third gear (19). A schematic plate (21) is fixedly connected to one end of the second rotating shaft (20). The schematic plate (21) is set on the outer wall of the device body (1).

6. A novel catalytic oxidation reactor according to claim 5, characterized in that: Each of the wind turbine blades (16) is provided with multiple blades.

7. A novel catalytic oxidation reactor according to claim 5, characterized in that: The inner diameter of the third gear (19) is ten times the inner diameter of the second gear (18), and N is a positive integer.

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