High-temperature SCR (Selective Catalytic Reduction) flue gas denitration device

Abstract

The utility model relates to the technical field of flue gas treatment, in particular to a high-temperature SCR (Selective Catalytic Reduction) flue gas denitration device. According to the technical scheme, the pin removing device comprises a pin removing device body, a moving plate, a connecting block and an inserting plate, a groove is formed in the pin removing device body, a containing plate is fixed in the groove, filtering holes are formed in the upper surface of the containing plate, a first penetrating groove is formed in one side of the pin removing device body, and long grooves are formed in the front end and the rear end of the inner wall of the groove correspondingly; a long groove is formed in one side of the pin disengaging device body, a connecting block is inserted into the long groove, the connecting block is fixed to the movable plate, a second penetrating groove is formed in the other side of the pin disengaging device body, an inserting groove is formed in the other side of the pin disengaging device body, a third penetrating groove is formed in one side of the inserting plate, the inserting plate is inserted into the inserting groove, and a cover plate is fixed to one side of the inserting plate. The SCR catalyst replacement device has the advantages that the SCR catalyst used for a long time can be replaced conveniently, time and labor are saved, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of flue gas treatment, in particular to a high-temperature SCR flue gas denitration device. Background Art

[0002] The SCR flue gas denitrification device is a device used to reduce the emission of nitrogen oxides generated during the combustion process. Its working principle is based on converting nitrogen oxides into harmless nitrogen and water vapor through chemical reactions, thereby reducing pollution to the environment. When the SCR flue gas denitrification device treats flue gas, it is necessary to place an SCR catalyst in the SCR flue gas denitrification device. The long-term use of the SCR catalyst is likely to cause the catalytic effect to decrease, but it is inconvenient to replace the SCR catalyst placed in the SCR flue gas denitrification device.

[0003] Patent announcement number CN215742878U discloses a coke oven SCR flue gas denitrification device, which mainly includes an original flue gas pipeline, an SCR reactor, a urea pyrolysis system and a flue gas heat exchange system. The original flue gas pipeline is respectively connected to the coke oven and the SCR reactor, the urea pyrolysis system is connected to the original flue gas pipeline, and the flue gas heat exchange system includes an original flue gas outlet pipe, a first heat exchanger and a reheated flue gas inlet pipe. The original flue gas outlet pipe is respectively connected to the original flue gas pipeline and the first heat exchanger, the reheated flue gas inlet pipe is respectively connected to the first heat exchanger and the original flue gas pipeline, and the first heat exchanger is arranged in the waste heat boiler.

[0004] In the prior art, the SCR catalyst of CN215742878U is used for a long time during use, which easily causes the catalytic effect to be reduced. However, the SCR catalyst is placed in the SCR flue gas denitration device and is inconvenient to replace. Utility Model Content

[0005] The utility model aims to provide a high-temperature SCR flue gas denitrification device, which has the advantages of being easy to replace the SCR catalyst used for a long time, saving time and labor, and improving work efficiency, and solves the problem that the SCR catalyst is easily used for a long time and the catalytic effect is reduced, but the SCR catalyst is placed in the SCR flue gas denitrification device and is inconvenient to replace.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-temperature SCR flue gas denitrification device, comprising a denitrification device body, a movable plate, a connecting block and a plug plate, a groove is provided in the denitrification device body, a placement plate is fixed in the groove, a filter hole is provided on the upper surface of the placement plate, a through groove one is provided on one side of the denitrification device body, long grooves are provided at the front and rear ends of the inner wall of the groove respectively, a connecting block is inserted into the long groove, the connecting block is fixed to the movable plate, a through groove two is provided on the other side of the denitrification device body, a slot is provided on the other side of the denitrification device body, a through groove three is provided on one side of the plug plate, the plug plate is inserted into the slot, and a cover plate is fixed on one side of the plug plate.

[0007] Preferably, a control switch box is fixed to the front end of the pin removal device body, and a display screen and buttons are sequentially embedded and installed at the front end of the control switch box from top to bottom. The start and stop of the motor can be controlled by the control switch box.

[0008] Preferably, an exhaust pipe is installed on the lower surface of the de-pinning device body, and four pillars in a rectangular array are fixed on the lower surface of the de-pinning device body. The exhaust pipe facilitates the discharge of treated smoke, and the four pillars can support the de-pinning device body, so that the device as a whole is placed stably.

[0009] Preferably, a threaded hole is provided on one side of the connection block, and circular holes are provided on the front and rear ends of one side of the pin removal device body, and motors are fixed on the front and rear ends of one side of the pin removal device body, and one side of the transmission shaft provided by the motor extends into the circular hole, and one side of the transmission shaft provided by the motor is fixed with a threaded rod, and one side of the threaded rod passes through the threaded hole and is threadedly connected. The threaded rod is fixed by the transmission shaft provided by the motor, which provides power for the rotation of the threaded rod, so that the connection block and the movable plate can be moved as needed, which is convenient for discharging the catalyst placed on the placement plate.

[0010] Preferably, the width of the long grooves respectively opened at the front and rear ends of the inner wall of the groove matches the width of the connecting block. By matching the width of the long groove with the width of the connecting block, the long groove can limit the connecting block to prevent the threaded rod from rotating, and the connecting block follows the rotation, which facilitates the movement of the connecting block.

[0011] Preferably, a handle is fixed on one side of the cover plate, which facilitates installation and removal of the cover plate and the plug plate.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] The utility model has a through groove one on one side of the pin removal device body, long grooves are respectively formed at the front and rear ends of the inner wall of the groove, a connecting block is inserted into the long groove, and the connecting block is fixed to the movable plate, and a through groove two is formed on the other side of the pin removal device body. When the SCR catalyst used for a long time needs to be replaced, the SCR catalyst is placed on the placement plate, the cover plate is removed, and the motor is started to rotate the threaded rod, so that the connecting block and the movable plate can be moved as needed, so that the movable plate can push out the SCR catalyst for replacement, thereby achieving the effect of facilitating the replacement of the SCR catalyst used for a long time, saving time and labor, and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0015] Figure 2 It is a schematic cross-sectional structure diagram of the main body of the pin removal device of the utility model;

[0016] Figure 3 This is a schematic diagram of the main structure of the cover plate of the utility model;

[0017] Figure 4 It is a schematic diagram of the main structure of the placement plate of the utility model.

[0018] In the figure: 1. support; 2. main body of the de-pinning device; 3. control switch box; 4. cover plate; 5. motor; 6. moving plate; 7. through slot one; 8. exhaust pipe; 9. through slot two; 10. groove; 11. slot; 12. threaded rod; 13. connecting block; 14. round hole; 15. threaded hole; 16. long slot; 17. handle; 18. plug plate; 19. through slot three; 20. placement plate; 21. filter hole. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figures 1 to 4The utility model provides an embodiment: a high-temperature SCR flue gas denitrification device, including a denitrification device body 2, a movable plate 6, a connecting block 13 and a plug plate 18, a groove 10 is opened in the denitrification device body 2, a control switch box 3 is fixed to the front end of the denitrification device body 2, a display screen and buttons are sequentially embedded and installed on the front end of the control switch box 3 from top to bottom, and the start and stop of the motor 5 can be controlled by the control switch box 3, a placement plate 20 is fixed in the groove 10, and a filter hole 21 is opened on the upper surface of the placement plate 20.

[0021] A through groove 7 is provided on one side of the de-pinning device body 2, an exhaust pipe 8 is installed on the lower surface of the de-pinning device body 2, and four pillars 1 in a rectangular array are fixed on the lower surface of the de-pinning device body 2, through which the treated smoke is easily discharged, and the four pillars 1 can support the de-pinning device body 2, so that the device is placed stably as a whole, and long grooves 16 are respectively provided at the front and rear ends of the inner wall of the groove 10, and the width of the long grooves 16 respectively provided at the front and rear ends of the inner wall of the groove 10 matches the width of the connecting block 13, and the long grooves 16 can limit the connecting block 13 to prevent the threaded rod 12 from rotating, and the connecting block 13 follows the rotation, which is convenient for the connecting block 13 to move, and the long grooves 1 6 is inserted into the connecting block 13, a threaded hole 15 is provided on one side of the connecting block 13, round holes 14 are respectively provided on the front and rear ends of one side of the pin removal device body 2, motors 5 are respectively fixed on the front and rear ends of one side of the pin removal device body 2, one side of the transmission shaft of the motor 5 extends into the round hole 14, a threaded rod 12 is fixed on one side of the transmission shaft of the motor 5, one side of the threaded rod 12 passes through the threaded hole 15 and is threadedly connected, the threaded rod 12 is fixed by the transmission shaft of the motor 5, and power is provided for the rotation of the threaded rod 12, so that the connecting block 13 and the movable plate 6 can be moved as needed, which is convenient for discharging the catalyst placed on the placement plate 20, saving time and effort, and improving work efficiency. The connecting block 13 is fixed to the movable plate 6.

[0022] A through groove 2 9 is provided on the other side of the de-pinning device body 2, and a slot 11 is provided on the other side of the de-pinning device body 2. A handle 17 is fixed on one side of the cover plate 4, and the handle 17 facilitates the installation and disassembly of the cover plate 4 and the plug plate 18. A through groove 3 19 is provided on one side of the plug plate 18, and the plug plate 18 is inserted into the slot 11. A cover plate 4 is fixed on one side of the plug plate 18, and the cover plate 4 facilitates sealing the through groove 2 9 to prevent smoke leakage.

[0023] When the SCR catalyst used for a long time needs to be replaced, the SCR catalyst is placed on the upper surface of the placement plate 20, the cover plate 4 is removed by the handle 17, and then the control switch box 3 is operated to start the motor 5, the threaded rod 12 rotates, and the connecting block 13 and the moving plate 6 can be moved as needed, so that the moving plate 6 enters the groove 10, and the moving plate 6 pushes the SCR catalyst out. The SCR catalyst used for a long time can be easily replaced, saving time and labor, and improving work efficiency.

[0024] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A high-temperature SCR flue gas denitrification device, comprising a denitrification device body (2), a movable plate (6), a connecting block (13) and a plug plate (18), characterized in that: A groove (10) is provided in the de-pinning device body (2), a placement plate (20) is fixed in the groove (10), a filter hole (21) is provided on the upper surface of the placement plate (20), a through groove (1) is provided on one side of the de-pinning device body (2), long grooves (16) are provided at the front and rear ends of the inner wall of the groove (10), a connecting block (13) is inserted into the long groove (16), and the connecting block (13) is fixed to the movable plate (6), a through groove (2) (9) is provided on the other side of the de-pinning device body (2), a slot (11) is provided on the other side of the de-pinning device body (2), a through groove (3) (19) is provided on one side of the plug plate (18), the plug plate (18) is inserted into the slot (11), and a cover plate (4) is fixed on one side of the plug plate (18).

2. A high temperature SCR flue gas denitrification device according to claim 1, characterized in that: A control switch box (3) is fixed to the front end of the pin removal device body (2), and a display screen and buttons are sequentially embedded and installed at the front end of the control switch box (3) from top to bottom.

3. A high temperature SCR flue gas denitrification device according to claim 1, characterized in that: An exhaust pipe (8) is installed on the lower surface of the pin removal device body (2), and four pillars (1) in a rectangular array are fixed on the lower surface of the pin removal device body (2).

4. A high-temperature SCR flue gas denitrification device according to claim 1, characterized in that: A threaded hole (15) is provided on one side of the connection block (13); round holes (14) are respectively provided at the front and rear ends of one side of the pin removal device body (2); a motor (5) is respectively fixed at the front and rear ends of one side of the pin removal device body (2); one side of a transmission shaft provided on the motor (5) extends into the round hole (14); one side of the transmission shaft provided on the motor (5) is fixed with a threaded rod (12); one side of the threaded rod (12) passes through the threaded hole (15) and is threadedly connected.

5. A high temperature SCR flue gas denitrification device according to claim 1, characterized in that: The width of the long grooves (16) respectively provided at the front and rear ends of the inner wall of the groove (10) matches the width of the connecting block (13).

6. A high temperature SCR flue gas denitrification device according to claim 1, characterized in that: A handle (17) is fixed to one side of the cover plate (4).

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