A plate-type catalyst addition device for denitrification in thermal power plants

Abstract

This utility model relates to the field of catalyst technology and discloses a denitrification plate-type catalyst addition device for thermal power plants. It includes a base plate, with a base fixedly connected to the middle of the upper end of the base plate. A vertical rod is rotatably connected to the upper end of the base, and a first horizontal rod is rotatably connected to the top of the vertical rod. A second threaded rod is connected to the inner wall of the first horizontal rod via a telescopic assembly, and a third horizontal rod is threadedly connected to the outer wall of the second threaded rod. A steel wire rope is connected to one end of the third horizontal rod via a rotating assembly, and a first lifting rod is provided at the lower end of the steel wire rope. A second lifting rod is slidably connected to the inner wall of the first lifting rod. In this utility model, stable clamping is achieved through the combination of clamping plates and pneumatic suction cups, and a pressure sensor automatically adjusts the torque. Multi-stage hydraulic telescopic rods increase the lifting distance and operational flexibility. Precise positioning of the first motor and other components, a counterweight to prevent tipping, adaptability to narrow and complex environments, and the cooperation of pins and limit slots ensure reliable and flexible lifting.

Description

Technical Field

[0001] This utility model relates to the field of catalyst technology, and in particular to a denitrification plate catalyst addition device for thermal power plants. Background Technology

[0002] Plate catalysts have wide applications in petrochemical, environmental protection, and other fields, and their replacement and hoisting are indispensable parts of the production process. However, plate catalysts are usually heavy and have special shapes, and traditional hoisting equipment is prone to instability or slippage during clamping and hoisting, resulting in low operating efficiency and even safety hazards. Therefore, it is particularly important to develop an efficient, stable, and adaptable plate catalyst hoisting device.

[0003] Existing plate-type catalyst hoisting devices typically employ a single clamping or suction cup structure, making precise control of clamping force difficult. Excessive or insufficient pressure can easily lead to catalyst slippage or damage. Furthermore, traditional devices lack flexibility and cannot adapt to hoisting requirements at varying heights and in complex environments. In confined or complex spaces, insufficient equipment stability can easily result in tipping or overturning, further increasing operational risks. Therefore, designing a device that can stably clamp catalysts while operating flexibly in complex environments has become an urgent technical problem to be solved. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a plate-type catalyst addition device for denitrification in thermal power plants. It achieves stable clamping through a combination of clamping plates and pneumatic suction cups, with a pressure sensor automatically adjusting the torque. A multi-stage hydraulic telescopic rod increases lifting distance and operational flexibility. Precise positioning of the primary motor and other components, a counterweight to prevent tipping, adaptability to confined and complex environments, and a combination of pins and limit slots ensure reliable and flexible lifting.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a denitrification plate-type catalyst addition device for a thermal power plant, comprising a base plate, a base fixedly connected to the middle of the upper end of the base plate, a first motor fixedly connected to the inner wall of the base, a vertical rod fixedly connected to the drive end of the first motor, a multi-stage hydraulic telescopic rod rotatably connected to the top of the vertical rod, a steel wire rope connected to the drive end of the multi-stage hydraulic telescopic rod via a rotating assembly, a first lifting rod provided at the lower end of the steel wire rope, a clamping plate connected to the lower end of the first lifting rod via a sliding assembly, a pneumatic suction cup fixedly connected to the inner wall of the clamping plate, a pressure sensor provided on one side of the clamping plate, a connecting rod rotatably connected to the outer wall of the upper end of the first lifting rod, a pin slidably connected to the left side of the lower end of the first lifting rod, a spring sleeved on the outer wall of the left side of the pin, and a pulling plate fixedly connected to the left end of the pin.

[0006] Furthermore, the rotating assembly includes a bracket fixedly connected to the drive end of the multi-stage hydraulic telescopic rod, a second motor fixedly connected to the outer wall of the bracket, a winding roller fixedly connected to the drive end of the second motor, and the wire rope sleeved on the outer wall of the winding roller.

[0007] Furthermore, the sliding assembly includes a second lifting rod slidably connected to the inner wall of the first lifting rod, a fixed rod fixedly connected to the bottom end of the second lifting rod, sliding plates slidably connected to both ends of the fixed rod, and the upper end of the clamping plate fixedly connected to the lower end of the sliding plate.

[0008] Furthermore, a hydraulic rod is rotatably connected to the lower outer wall of the upright, and the driving end of the hydraulic rod is rotatably connected to the lower outer wall of the multi-stage hydraulic rod.

[0009] Furthermore, the left end of the spring is connected to the right side of the pulling plate, and the right end of the spring is connected to the outer wall of the first hoisting rod.

[0010] Furthermore, the bottom end of the upright is rotatably connected to the top of the base, and a counterweight is fixedly connected to one side of the upper end of the base plate.

[0011] Furthermore, the lower end of the connecting rod is rotatably connected to the upper end of the sliding plate, and the right end of the pin is slidably connected to the outer wall of the second hoisting rod.

[0012] Furthermore, the two ends of the winding roller are rotatably connected to the inner wall of the bracket.

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

[0014] 1. In this invention, the combination of clamping plates and pneumatic suction cups achieves stable clamping of the plate catalyst. Simultaneously, a pressure sensor provides real-time data feedback, automatically adjusting the torque to ensure moderate and stable clamping force. The multi-stage hydraulic telescopic rod design not only increases the lifting distance but also improves operational flexibility, ensuring efficient task completion in various working environments.

[0015] 2. In this utility model, the horizontal and vertical positions can be precisely adjusted through the first motor and multi-stage hydraulic telescopic rod to meet different operational needs. The counterweight on the base plate enhances the stability of the device and prevents tipping, making it particularly suitable for safe operation in confined or complex environments. The cooperative design of the pin and the limiting groove ensures the reliability and flexibility of the device during hoisting. Attached Figure Description

[0016] Figure 1 This is a perspective view of a denitrification plate catalyst addition device for a thermal power plant proposed in this utility model;

[0017] Figure 2 This is a cross-sectional view of the base of a denitrification plate catalyst addition device for a thermal power plant proposed in this utility model;

[0018] Figure 3 This utility model provides a structural diagram of the rotating component of a denitrification plate catalyst addition device for thermal power plants.

[0019] Figure 4 This utility model provides a clamping plate structure diagram of a denitrification plate catalyst addition device for thermal power plants.

[0020] Figure 5 This is a cross-sectional view of the hoisting rod of a denitrification plate catalyst addition device for a thermal power plant proposed in this utility model.

[0021] Legend:

[0022] 1. Base plate; 2. Base; 3. Counterweight; 4. Upright pole; 5. Hydraulic rod; 6. Multi-stage hydraulic telescopic rod; 7. First motor; 8. Bracket; 9. Second motor; 10. Winding roller; 11. Wire rope; 12. First lifting rod; 13. Second lifting rod; 14. Connecting rod; 15. Sliding plate; 16. Fixing rod; 17. Clamping plate; 18. Pneumatic suction cup; 19. Pressure sensor; 20. Pulling plate; 21. Spring; 22. Pin. Detailed Implementation

[0023] 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.

[0024] Reference Figures 1-3 An embodiment of this utility model provides a denitrification plate catalyst addition device for a thermal power plant, comprising a base plate 1, a base 2 fixedly connected to the upper middle part of the base plate 1, a first motor 7 fixedly connected to the inner wall of the base 2, a vertical rod 4 fixedly connected to the drive end of the first motor 7, the bottom end of the vertical rod 4 rotatably connected to the top end of the base 2, a counterweight block 3 fixedly connected to one side of the upper end of the base plate 1, a hydraulic rod 5 rotatably connected to the lower outer wall of the vertical rod 4, the drive end of the hydraulic rod 5 rotatably connected to the lower outer wall of the multi-stage hydraulic rod 5, and a multi-stage hydraulic telescopic rod 6 rotatably connected to the top end of the vertical rod 4.

[0025] Specifically, firstly, the device can be moved to the vicinity of the plate catalyst to be hoisted using the casters equipped at its bottom. During hoisting, if the working angle of the device needs to be adjusted, the multi-stage hydraulic telescopic rod 6 can be rotated around the top of the upright 4 via the drive end of the hydraulic rod 5. If the current hoisting distance is insufficient, the multi-stage hydraulic telescopic rod 6 can be activated to extend it section by section. It is worth noting that each section of the multi-stage hydraulic telescopic rod 6 can only slide and cannot rotate; this design effectively extends the hoisting distance. When a deviation in the horizontal position of the plate catalyst is detected, the first motor 7 can be activated. The drive end of the first motor 7 will drive the upright 4 to rotate, thereby adjusting the horizontal position of the plate catalyst. The counterweight 3 on the base plate effectively enhances the stability of the device, preventing tipping over. Furthermore, the device is compact and can operate safely in confined or complex environments.

[0026] Reference Figures 3-5 A bracket 8 is fixedly connected to the drive end of the multi-stage hydraulic telescopic rod 6. A second motor 9 is fixedly connected to the outer wall of the bracket 8. A winding roller 10 is fixedly connected to the drive end of the second motor 9. The two ends of the winding roller 10 are rotatably connected to the inner wall of the bracket 8. A wire rope 11 is sleeved on the outer wall of the winding roller 10. A first lifting rod 12 is provided at the lower end of the wire rope 11. A second lifting rod 13 is slidably connected to the inner wall of the first lifting rod 12. A fixing rod 16 is fixedly connected to the bottom end of the second lifting rod 13. Sliding plates 15 are slidably connected to both ends of the fixing rod 16. The upper end of the clamping plate 17 is fixedly connected to the lower end of the sliding plate 15. A pneumatic suction cup 18 is fixedly connected to the inner wall of the clamping plate 17. A pressure sensor 19 is provided on one side of the clamping plate 17. A connecting rod 14 is rotatably connected to the upper outer wall of the first lifting rod 12. The lower end of the connecting rod 14 is rotatably connected to the upper end of the sliding plate 15. A pin 22 is slidably connected to the lower left side of the first lifting rod 12. A spring 21 is sleeved on the left outer wall of the pin 22. The left end of the spring 21 is connected to the right side of the pulling plate 20. The right end of the spring 21 is connected to the outer wall of the first lifting rod 12. The left end of the pin 22 is fixedly connected to the pulling plate 20. The right end of the pin 22 is slidably connected to the outer wall of the second lifting rod 13.

[0027] Specifically, the second motor 9 is started, and the clamping plate 17 is moved to both sides of the plate catalyst. Then, the pulling plate 20 is pulled outwards, causing the pin 22 to move outwards as well. Once the pin 22 disengages from the limiting groove on the second lifting rod 13, the first lifting rod 12 and the second lifting rod 13 can slide relative to each other. At this point, the second motor 9 is started again to retract the wire rope 11. During the retraction process, the wire rope 11 drives the first lifting rod 12 upwards. The first lifting rod 12, through the connecting rod 14, pushes the sliding plate 15 towards the center, thereby causing the clamping plate 17 to clamp the plate catalyst. Simultaneously, the pneumatic suction cup 18 on the device adsorbs the sides of the plate catalyst, further increasing the clamping force and ensuring a more stable and reliable clamping process. Furthermore, the pressure sensor 19 installed on the side of the clamping plate 17 monitors the pressure changes during the clamping process in real time and feeds the monitoring data back to the second motor 9 and the multi-stage hydraulic telescopic rod 6. Based on feedback data, the system automatically adjusts the motor torque and the extension / retraction state of the multi-stage hydraulic telescopic rod 6 to ensure the stability and safety of the hoisting process. After the plate catalyst is hoisted to the designated position, it is slowly lowered via the wire rope 11. During this process, the first hoisting rod 12 moves downwards. Once the plate catalyst is accurately positioned, the fixing rod 16 moves down to the top of the plate catalyst. At this point, the first hoisting rod 12 continues to move downwards, while the second hoisting rod 13 remains stationary. Therefore, the first hoisting rod 12 slides downwards on the outer wall of the second hoisting rod 13. When the pin 22 aligns with the limiting hole on the second hoisting rod 13, the spring 21, under its own elastic force, pulls the pulling plate 20 towards the second hoisting rod 13. The pulling plate 20 then drives the pin 22 to insert into the limiting hole of the second hoisting rod 13, achieving a relocking of the first hoisting rod 12 and the second hoisting rod 13. Finally, the wire rope 11 is retracted again, causing the entire clamping device to move upwards.

[0028] 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 denitration plate catalyst adding device for thermal power plants, comprising a base plate (1), characterized in that: A base (2) is fixedly connected to the upper middle part of the base plate (1). A first motor (7) is fixedly connected to the inner wall of the base (2). A vertical pole (4) is fixedly connected to the drive end of the first motor (7). A multi-stage hydraulic telescopic rod (6) is rotatably connected to the top of the vertical pole (4). A steel wire rope (11) is connected to the drive end of the multi-stage hydraulic telescopic rod (6) through a rotating assembly. A first hoisting rod (12) is provided at the lower end of the steel wire rope (11). The lower end of the first hoisting rod (12) is connected to... A sliding assembly is connected to a clamping plate (17), and a pneumatic suction cup (18) is fixedly connected to the inner wall of the clamping plate (17). A pressure sensor (19) is provided on one side of the clamping plate (17). A connecting rod (14) is rotatably connected to the upper outer wall of the first lifting rod (12). A pin (22) is slidably connected to the lower left side of the first lifting rod (12). A spring (21) is sleeved on the left outer wall of the pin (22). A pull plate (20) is fixedly connected to the left end of the pin (22).

2. The flue gas denitration plate catalyst adding device for thermal power plants according to claim 1, characterized in that: The rotating assembly includes a bracket (8) fixedly connected to the drive end of the multi-stage hydraulic telescopic rod (6), a second motor (9) fixedly connected to the outer wall of the bracket (8), a winding roller (10) fixedly connected to the drive end of the second motor (9), and the wire rope (11) sleeved on the outer wall of the winding roller (10).

3. The flue gas denitration plate catalyst adding device for thermal power plants according to claim 1, characterized in that: The sliding assembly includes a second lifting rod (13) slidably connected to the inner wall of the first lifting rod (12), a fixed rod (16) fixedly connected to the bottom end of the second lifting rod (13), a sliding plate (15) slidably connected to both ends of the fixed rod (16), and the upper end of the clamping plate (17) fixedly connected to the lower end of the sliding plate (15).

4. The flue gas denitration plate catalyst adding device for thermal power plants according to claim 1, characterized in that: The lower outer wall of the upright (4) is rotatably connected to a hydraulic rod (5), and the driving end of the hydraulic rod (5) is rotatably connected to the lower outer wall of the multi-stage hydraulic rod (5).

5. The denitrification plate catalyst addition device for thermal power plants according to claim 1, characterized in that: The left end of the spring (21) is connected to the right side of the pull plate (20), and the right end of the spring (21) is connected to the outer wall of the first hoisting rod (12).

6. The flue gas denitration plate catalyst adding apparatus of a thermal power plant according to claim 1, characterized by: The bottom end of the upright (4) is rotatably connected to the top end of the base (2), and a counterweight (3) is fixedly connected to one side of the upper end of the base plate (1).

7. The flue gas denitration plate catalyst adding apparatus of a thermal power plant according to claim 1, characterized by: The lower end of the connecting rod (14) is rotatably connected to the upper end of the sliding plate (15), and the right end of the pin (22) is slidably connected to the outer wall of the second hoisting rod (13).

8. The flue gas denitration plate catalyst adding apparatus of a thermal power plant according to claim 2, characterized by: The two ends of the winding roller (10) are rotatably connected to the inner wall of the bracket (8).

Images