A phosphine catalytic conversion device using a metal oxide activated carbon catalyst

Abstract

This utility model relates to the field of phosphine conversion and discloses a phosphine catalytic conversion device using a metal oxide activated carbon catalyst. The device includes a base, a reaction vessel fixedly connected to the top of the base, a connecting pipe fixedly connected to the left end of the reaction vessel, a filter box fixedly connected to the top of the connecting pipe, hinges fixedly connected to both the upper and lower sides of the left end of the filter box, and a cover rotatably connected to the outer walls of the two hinges. A locking assembly is provided on the inner wall of the cover, and the cover is locked onto the filter box by the locking assembly. A fixing block is fixedly connected to the bottom right side of the reaction vessel, and a motor is fixedly connected to the top of the fixing block. The drive end of the motor passes through the inner wall of the fixing block and is fixedly connected to a fixing rod. In this utility model, the locking assembly allows users to quickly disassemble and install the filter screen as needed without partially or completely disassembling the device, greatly simplifying the maintenance process.

Description

Technical Field

[0001] This utility model relates to the field of phosphine conversion, and in particular to a phosphine catalytic conversion device using a metal oxide activated carbon catalyst. Background Technology

[0002] In the field of phosphine gas treatment, metal oxide activated carbon catalysts are widely used in the catalytic oxidation conversion of phosphine due to their good catalytic performance and stability. In the existing technology, a fixed bed reactor structure is usually adopted. The gas passes through the filter screen and the catalyst bed in sequence before entering the subsequent treatment system. The role of the filter screen is to intercept particulate matter and impurities that may be present in the gas to prevent them from entering the catalyst bed and causing blockage or poisoning, thereby affecting the catalytic efficiency and the service life of the device.

[0003] In existing technologies, filters are mostly fixed installations, usually inside the device. Disassembly requires partial or complete disassembly of the entire device, which is cumbersome and time-consuming, seriously affecting the maintenance efficiency and continuous use of the device. In addition, since filters are prone to clogging during use, they need to be cleaned or replaced regularly. However, the limitations of the existing device structure make it difficult to remove filters quickly and easily, which places a heavy workload on operators and increases the maintenance cost and downtime of the equipment. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a phosphine catalytic conversion device using a metal oxide activated carbon catalyst. Through a locking assembly, users can quickly disassemble and install the filter screen as needed, simplifying the maintenance process.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a phosphine catalytic conversion device using a metal oxide activated carbon catalyst, comprising a base, a reaction vessel fixedly connected to the top of the base, a connecting pipe fixedly connected to the left end of the reaction vessel, a filter box fixedly connected to the top of the connecting pipe, hinges fixedly connected to the upper and lower sides of the left end of the filter box, a cover rotatably connected to the outer walls of the two hinges, a locking assembly provided on the inner wall of the cover, the cover being locked onto the filter box by the locking assembly, a fixing block fixedly connected to the right side of the bottom of the reaction vessel, a motor fixedly connected to the top of the fixing block, the drive end of the motor penetrating the inner wall of the fixing block and fixedly connected to a fixing rod, the left end of the outer wall of the fixing rod rotatably connected to the right end of the outer wall of the reaction vessel.

[0006] Furthermore, the locking assembly includes a circular tube fixedly connected to the top of the inner wall of the cover, a compression spring fixedly connected to the bottom end of the circular tube, a ring fixedly connected to the bottom end of the compression spring, a pull rod fixedly connected to the inner wall of the ring, and the outer wall of the pull rod slidably connected to the inner wall of the circular tube.

[0007] Furthermore, a clip is fixedly connected to the bottom of the outer wall of the pull rod, and the outer wall of the clip is slidably connected to the inner wall of the cover. The outer wall of the filter box has a slot, and the clip is used to snap into the slot.

[0008] Furthermore, a filter disc is fitted into the inner wall of the filter box, and an air inlet pipe is fixedly connected to the top of the filter box.

[0009] Furthermore, a second gear is fixedly connected to the outer wall of the fixed rod, a first gear is meshed with the right end of the outer wall of the second gear, a rotating rod is fixedly connected to the inner wall of the first gear, and the outer wall of the rotating rod is rotatably connected to the inner wall of the reaction vessel.

[0010] Furthermore, an air outlet pipe is rotatably connected to the right end of the outer wall of the rotating rod, and the bottom end of the air outlet pipe is fixedly connected to the top of the outer wall of the fixed block.

[0011] Furthermore, a turntable is fixedly connected to the left end of the rotating rod, and several fixed disks are fixedly connected to the outer wall of the turntable. The inner wall of the fixed disk is provided with a metal oxide activated carbon catalyst body, which is used to convert phosphine gas.

[0012] Furthermore, a number of cleaning brushes are fixedly connected to the inner wall of the reaction vessel, and the cleaning brushes are used to clean the oxide activated carbon catalyst body.

[0013] This utility model has the following beneficial effects:

[0014] 1. In this utility model, the locking component allows users to quickly disassemble and install the filter screen as needed without having to partially or completely disassemble the device, which greatly simplifies the maintenance operation process. It not only improves the convenience of filter screen replacement, but also significantly shortens maintenance time, thereby ensuring the continuous operation performance of the equipment.

[0015] 2. In this utility model, the first gear driven by the motor drives the second gear to rotate, which in turn drives the rotating rod to rotate the turntable. The turntable then drives the oxide activated carbon catalyst to rotate in the reaction vessel, thereby achieving uniform catalytic conversion of phosphine gas. During the rotation, the cleaning brush can effectively remove impurities from the surface of the catalyst, ensuring its continuous and efficient catalytic performance. Attached Figure Description

[0016] Figure 1This is a perspective view of a phosphine catalytic conversion device using a metal oxide activated carbon catalyst according to the present invention.

[0017] Figure 2 A cross-sectional view of the filter box of a phosphine catalytic conversion device using a metal oxide activated carbon catalyst proposed in this utility model;

[0018] Figure 3 This is a cross-sectional view of the rotating disk of a phosphine catalytic conversion device using a metal oxide activated carbon catalyst proposed in this utility model.

[0019] Legend:

[0020] 1. Base; 2. Reaction vessel; 3. Connecting pipe; 4. Filter box; 5. Hinge; 6. Cover; 7. Round tube; 8. Pull rod; 9. Inlet pipe; 10. Outlet pipe; 11. Rotating rod; 12. First gear; 13. Second gear; 14. Fixing rod; 15. Motor; 16. Fixing block; 17. Compression spring; 18. Ring; 19. Clip; 20. Slot; 21. Filter disc; 22. Cleaning brush; 23. Turntable; 24. Fixing disc; 25. Oxide activated carbon catalyst body. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Reference Figures 1-3This utility model provides an embodiment of a phosphine catalytic conversion device using a metal oxide activated carbon catalyst, comprising a base 1, a reaction vessel 2 fixedly connected to the top of the base 1, a connecting pipe 3 fixedly connected to the left end of the reaction vessel 2, a filter box 4 fixedly connected to the top of the connecting pipe 3, hinges 5 fixedly connected to the upper and lower sides of the left end of the filter box 4, a cover 6 rotatably connected to the outer walls of the two hinges 5, a locking component provided on the inner wall of the cover 6, the cover 6 being locked onto the filter box 4 by the locking component, and a filter disc 21 being locked onto the inner wall of the filter box 4. 1. For filtering phosphine gas, the filter box 4 has an inlet pipe 9 fixedly connected to its top end, which is used to introduce phosphine gas into the device. The locking assembly includes a round tube 7 fixedly connected to the top end of the inner wall of the cover 6, a compression spring 17 fixedly connected to the bottom end of the round tube 7, a ring 18 fixedly connected to the bottom end of the compression spring 17, a pull rod 8 fixedly connected to the inner wall of the ring 18, the outer wall of the pull rod 8 slidably connected to the inner wall of the round tube 7, and a locking piece 19 fixedly connected to the bottom end of the outer wall of the pull rod 8. The outer wall of the locking piece 19 slidably connected to the inner wall of the cover 6. The outer wall of the filter box 4 has an opening. The slot 20 and the clip 19 are used to engage with the slot 20. A fixing block 16 is fixedly connected to the bottom right side of the reaction vessel 2. A motor 15 is fixedly connected to the top of the fixing block 16. The drive end of the motor 15 passes through the inner wall of the fixing block 16 and is fixedly connected to a fixing rod 14. The left end of the outer wall of the fixing rod 14 is rotatably connected to the right end of the outer wall of the reaction vessel 2. A second gear 13 is fixedly connected to the outer wall of the fixing rod 14. A first gear 12 is meshed with the right end of the outer wall of the second gear 13. A rotating rod 11 is fixedly connected to the inner wall of the first gear 12. The outer wall of the rotating rod 11 is rotatably connected to the right end of the reaction vessel 2. The inner wall of the reaction tank 2 is connected to the right end of the outer wall of the rotating rod 11, and the bottom end of the gas outlet pipe 10 is fixedly connected to the top of the outer wall of the fixed block 16. The left end of the rotating rod 11 is fixedly connected to the turntable 23, and the outer wall of the turntable 23 is fixedly connected to several fixed disks 24. The inner wall of the fixed disk 24 is provided with a metal oxide activated carbon catalyst body 25, which is used to convert phosphine gas. The inner wall of the reaction tank 2 is fixedly connected to several cleaning brushes 22, which are used to clean the metal oxide activated carbon catalyst body 25.

[0023] Specifically, during operation, the phosphine gas to be processed is first introduced into the filter box 4 through the inlet pipe 9. Before entering the reaction tank 2, the gas undergoes preliminary filtration through the filter disc 21 located within the filter box 4 to remove particulate matter, dust, or other impurities, preventing them from entering the catalyst bed and causing blockage or reducing catalytic efficiency. The filtered gas then enters the reaction tank 2 through the connecting pipe 3 at the bottom of the filter box 4. Simultaneously, the motor 15 is started, driving the fixed rod 14 to rotate. The fixed rod 14 is connected to the second gear 13, which meshes with the first gear 12, thereby driving the rotating rod 11 to rotate synchronously. The rotation of the rotating rod 11 causes the rotating disk 23 and the fixed disk 24 mounted on it to move. The fixed disk 24 carries the oxide activated carbon catalyst body 25. As the fixed disk 24 rotates, the oxide activated carbon catalyst body 25 is dynamically distributed within the reaction tank 2, ensuring full contact with the incoming phosphine gas, thereby improving the catalytic conversion efficiency. During the rotation of the catalyst body 25, the cleaning brush 22 installed on the inner wall of the reaction tank 2 cleans its surface in real time. The cleaning brush 22 is fixed and moves along with the rotation of the oxide activated carbon catalyst body 25. Impurities and reaction byproducts attached to its surface are removed in time, thereby preventing catalyst deactivation or catalytic efficiency reduction and ensuring the continuous and efficient operation of the device. The gas after catalytic conversion is discharged outside the device through the gas outlet pipe 10 installed at the top of the reaction tank 2, completing the entire phosphine gas treatment process. After completing one catalytic reaction and cleaning operation, the filter plate 21 needs to be replaced or cleaned. At this time, the operator can pull the lever 8 upward. The lever 8 drives the ring 18 to move upward, compressing the spring 17 and causing the clip 19 to disengage from the slot 20, releasing the fixing effect on the filter box 4. Then, the operator can grasp the cover 6 and open the filter box 4 through the connecting structure of the hinge 5, thereby removing the filter plate 21 for replacement or cleaning. The operation is simple and quick, effectively improving the maintenance efficiency and ease of use of the device.

[0024] Working principle: The phosphine gas to be cleaned is introduced into the filter box 4 through the inlet pipe 9, filtered by the filter disc 21, and then introduced into the reaction tank 2 through the connecting pipe 3 at the bottom of the filter box 4. At the same time, the motor 15 is started. After the motor 15 starts, it drives the fixed rod 14 to rotate. The fixed rod 14 drives the second gear 13 to rotate. The second gear 13 meshes with the first gear 12, causing the first gear 12 to drive the rotating rod 11 to rotate together. The rotation of the rotating rod 11 drives the rotating disk 23 and the fixed disk 24 to move. The oxide activated carbon catalyst body 25 on the fixed disk 24 rotates accordingly, making full contact with the phosphine gas and carrying out catalytic conversion. The cleaning brush 22 is fixed in place on the inner wall of the reaction vessel 2. When the fixed plate 24 rotates, the cleaning brush 22 cleans the surface of the oxide activated carbon catalyst body 25 to prevent impurities from accumulating and affecting the catalytic effect. The gas outlet pipe 10 discharges the treated gas out of the device, completing the entire catalytic conversion process. After cleaning, by pulling the pull rod 8 upward, the pull rod 8, along with the ring 18, squeezes the compression spring 17, causing the clip 19 to leave the slot 20, releasing the restriction on the filter box 4. Then, the cover 6 can be grasped and rotated through the hinge 5 to unfold the interior of the filter box 4. Then, the filter disc 21 in the filter box 4 can be removed for replacement.

[0025] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A phosphine catalytic conversion device of a metal oxide activated carbon catalyst, comprising a base (1), characterized in that: The top of the base (1) is fixedly connected to the reaction vessel (2), the left end of the reaction vessel (2) is fixedly connected to the connecting pipe (3), the top of the connecting pipe (3) is fixedly connected to the filter box (4), the upper and lower sides of the left end of the filter box (4) are fixedly connected to the hinges (5), the outer walls of the two hinges (5) are rotatably connected to the cover (6), the inner wall of the cover (6) is provided with a locking component, the cover (6) is locked on the filter box (4) by the locking component, the bottom right side of the reaction vessel (2) is fixedly connected to the fixing block (16), the top of the fixing block (16) is fixedly connected to the motor (15), the driving end of the motor (15) passes through the inner wall of the fixing block (16) and is fixedly connected to the fixing rod (14), the left end of the outer wall of the fixing rod (14) is rotatably connected to the right end of the outer wall of the reaction vessel (2).

2. A metal oxide activated carbon catalyst catalytic conversion apparatus for phosphine according to claim 1, characterized in that: The locking assembly includes a round tube (7) fixedly connected to the top of the inner wall of the cover (6), a compression spring (17) fixedly connected to the bottom end of the round tube (7), a ring (18) fixedly connected to the bottom end of the compression spring (17), a pull rod (8) fixedly connected to the inner wall of the ring (18), and the outer wall of the pull rod (8) slidably connected to the inner wall of the round tube (7).

3. A metal oxide activated carbon catalyst catalytic conversion apparatus for phosphine according to claim 2, characterized in that: The bottom of the outer wall of the pull rod (8) is fixedly connected to a clip (19), the outer wall of the clip (19) is slidably connected to the inner wall of the cover (6), and the outer wall of the filter box (4) is provided with a slot (20), the clip (19) is used to be inserted into the slot (20).

4. The apparatus for catalytic conversion of phosphine according to claim 1, wherein: The filter box (4) has a filter disc (21) attached to its inner wall, and an air inlet pipe (9) is fixedly connected to the top of the filter box (4).

5. The phosphine catalytic conversion device using a metal oxide activated carbon catalyst according to claim 1, characterized in that: The outer wall of the fixed rod (14) is fixedly connected to a second gear (13), the right end of the outer wall of the second gear (13) is meshed with a first gear (12), the inner wall of the first gear (12) is fixedly connected to a rotating rod (11), and the outer wall of the rotating rod (11) is rotatably connected to the inner wall of the reaction vessel (2).

6. A metal oxide activated carbon catalyst catalytic conversion apparatus for phosphine according to claim 5, characterized in that: The right end of the outer wall of the rotating rod (11) is rotatably connected to an air outlet pipe (10), and the bottom end of the air outlet pipe (10) is fixedly connected to the top of the outer wall of the fixing block (16).

7. A metal oxide activated carbon catalyst catalytic conversion apparatus for phosphine according to claim 5, characterized by: The left end of the rotating rod (11) is fixedly connected to a turntable (23), and a number of fixed disks (24) are fixedly connected to the outer wall of the turntable (23). The inner wall of the fixed disk (24) is provided with a metal oxide activated carbon catalyst body (25), which is used to convert phosphine gas.

8. A metal oxide activated carbon catalyst catalytic conversion apparatus for phosphine according to claim 7, characterized by: The inner wall of the reaction vessel (2) is fixedly connected with several cleaning brushes (22), which are used to clean the oxide activated carbon catalyst body (25).

Images