Anti-poisoning device for SCR (Selective Catalytic Reduction) denitration catalyst

Abstract

The utility model discloses an SCR (Selective Catalytic Reduction) denitration catalyst anti-poisoning device, which relates to the technical field of SCR denitration catalyst anti-poisoning devices, and comprises a bottom plate and a reaction box, the top of the bottom plate is fixedly connected with a collecting box, and the outer side of the collecting box is fixedly connected with a display screen; by arranging a control motor, a blocking plate, a feeding pipe, a collecting box, a floating plate, an inductor, a magnetic card, a second valve and a discharging pipe, the SCR denitration catalyst poisoning prevention device has the advantages that a sodium hydroxide solution can be conveniently added into an absorption box, and the situation that workers are harmed when the workers add and replace the sodium hydroxide solution into the absorption box is avoided; through the arrangement of the power block, the first gear, the second gear, the transmission shaft, the fixing block, the first clamping block, the reaction box, the threaded rod, the mounting block, the second motor and the sealing strip, the SCR denitration catalyst poisoning prevention device has the advantages that the first motor can be conveniently maintained and replaced, and the situation that the first motor cannot be maintained and replaced is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of SCR denitration catalyst anti-poisoning devices, in particular to an SCR denitration catalyst anti-poisoning device. Background Art

[0002] Denitrification mainly refers to the process of removing nitrogen oxides from combustion flue gas. This process can play an important role in protecting the environment. The more mainstream processes in the world can be divided into: SCR and SNCR. The main difference between these two processes is that SCR requires the use of a catalyst, and the use of a catalyst will reduce the temperature of the entire reaction.

[0003] An SCR denitration catalyst anti-poisoning device disclosed in the Chinese utility model patent application disclosure CN 215027665 U, although the utility model prevents workers from being poisoned, the sodium hydroxide in the utility model is highly alkaline and extremely corrosive, and the sodium hydroxide solution of the device is manually added and replaced in the absorption box, which may easily cause harm to workers when adding and replacing the sodium hydroxide solution in the absorption box, and the first motor of the utility model is arranged in the reaction box, and the reaction box is completely closed. Once the first motor is damaged or fails, the first motor cannot be repaired and replaced, so there is a problem that the first motor cannot be repaired and replaced. In summary, the utility model has the problem that workers are harmed when adding and replacing the sodium hydroxide solution in the absorption box and the first motor cannot be repaired and replaced. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides an SCR denitration catalyst anti-poisoning device, which solves the problems raised in the above-mentioned background technology.

[0006] (II) Technical solution

[0007] To achieve the above purpose, the utility model is implemented by the following technical solutions: comprising a bottom plate, a reaction box, the top of the bottom plate is fixedly connected with a collection box, the outer side of the collection box is fixedly connected with a display screen, the top of the collection box is fixedly connected with a first feed pipe, the top of the collection box is fixedly connected with a second feed pipe, the inner wall of the collection box is fixedly connected with an air duct, and the inner wall of the air duct is fixedly connected with a first valve;

[0008] The top of the bottom plate is fixedly connected to a collecting box, the inner wall of the collecting box is fixedly connected to a pillar, the outer side of the pillar is slidably connected to a floating plate, the inner wall of the floating plate is slidably connected to a limiting column, one end of the limiting column is fixedly connected to the collecting box, the top of the collecting box is fixedly connected to a control motor, the output shaft of the control motor is fixedly connected to a blocking plate, one end of the blocking plate is movably connected to a feeding pipe, one end of the feeding pipe is fixedly connected to the collecting box, the inner wall of the collecting box is fixedly connected to a second valve, and one end of the second valve is fixedly connected to a discharge pipe;

[0009] The inner wall of the reaction box is movably connected with a power block, one end of the power block is fixedly connected with a first gear, the outer side of the first gear is meshingly connected with a second gear, one end of the second gear is fixedly connected with a transmission shaft, the outer side of the transmission shaft is threadedly connected with a first clamping block, the outer side of the first clamping block is slidably connected with a fixed block, the inner wall of the fixed block is movably connected with a threaded rod, the outer side of the threaded rod is threadedly connected with a second clamping block, the outer side of the second clamping block is slidably connected with a mounting block, one end of the mounting block is fixedly connected with a second motor, the output shaft of the second motor is fixedly connected with a connecting shaft, and one end of the connecting shaft is fixedly connected with a fan blade.

[0010] Optionally, a sealing strip is fixedly connected to the outer side of the fixed block, and a reaction box is movably connected to the outer side of the sealing strip.

[0011] Optionally, a magnetic card is fixedly connected to the inner wall of the pillar, and a sensor is fixedly connected to the inner wall of the floating plate.

[0012] Optionally, a control motor and a blocking plate are provided on the first feed pipe, and a control motor and a blocking plate are provided on the second feed pipe.

[0013] Optionally, there are two limiting columns, and the two limiting columns are distributed on both sides of the pillar.

[0014] Optionally, the height of the inner wall of the support column is equal to the height of the inner wall of the collection box, and the height of the support column is equal to the height of the limiting column.

[0015] (III) Beneficial effects

[0016] The utility model provides an SCR denitration catalyst anti-poisoning device, which has the following beneficial effects:

[0017] 1. The SCR denitration catalyst anti-poisoning device is arranged by controlling a motor, a blocking plate, a feed pipe, a collecting box, a floating plate, a sensor, a magnetic card, a second valve, and a discharge pipe. The SCR denitration catalyst anti-poisoning device is convenient for adding sodium hydroxide solution into the absorption box, thereby avoiding harm to workers when adding and replacing sodium hydroxide solution into the absorption box.

[0018] 2. The SCR denitration catalyst anti-poisoning device is arranged through a power block, a first gear, a second gear, a transmission shaft, a fixed block, a first clamping block, a reaction box, a threaded rod, a mounting block, a second motor, and a sealing strip. The SCR denitration catalyst anti-poisoning device facilitates the maintenance and replacement of the first motor and avoids the inability to repair and replace the first motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the positive shaft side structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the top view structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the front cross-sectional structure of the utility model;

[0022] Figure 4 This is a schematic diagram of the cross-sectional structure of the collection box of the utility model;

[0023] Figure 5 This is a schematic diagram of the cross-sectional structure of the reaction box of the utility model;

[0024] Figure 6 This is a schematic diagram of the cross-sectional structure of the support column of the utility model;

[0025] Figure 7 For this utility model Figure 3 The enlarged structural diagram at A in the middle;

[0026] Figure 8 For this utility model Figure 5 Enlarged structural diagram at B in the middle.

[0027] In the figure: 1. collecting box; 3. air duct; 4. first valve; 5. first feed pipe; 6. second feed pipe; 7. reaction box; 8. bottom plate; 9. feed pipe; 10. blocking plate; 11. limiting column; 12. magnetic card; 13. floating plate; 14. pillar; 15. second valve; 16. discharge pipe; 17. power block; 18. sealing strip; 19. fixing block; 20. display screen; 21. control motor; 22. first gear; 23. second gear; 24. transmission shaft; 25. first clamp block; 26. threaded rod; 27. fan blade; 28. connecting shaft; 29. ​​second motor; 30. mounting block; 31. second clamp block; 32. sensor. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0029] Example 1

[0030] See also Figures 1 to 8 The utility model provides a technical solution: an SCR denitration catalyst anti-poisoning device, comprising a bottom plate 8, a reaction box 7, a collecting box 1 is fixedly connected to the top of the bottom plate 8, a display screen 20 is fixedly connected to the outside of the collecting box 1, a first feed pipe 5 is fixedly connected to the top of the collecting box 1, a second feed pipe 6 is fixedly connected to the top of the collecting box 1, an air duct 3 is fixedly connected to the inner wall of the collecting box 1, and a first valve 4 is fixedly connected to the inner wall of the air duct 3;

[0031] The top of the bottom plate 8 is fixedly connected with a collecting box 1, the inner wall of the collecting box 1 is fixedly connected with a pillar 14, the inner wall of the pillar 14 is fixedly connected with a magnetic card 12, the inner wall of the floating plate 13 is fixedly connected with an inductor 32, the inner wall height of the pillar 14 is equal to the inner wall height of the collecting box 1, the height of the pillar 14 is equal to the height of the limiting column 11, the outer side of the pillar 14 is slidably connected with the floating plate 13, the inner wall of the floating plate 13 is slidably connected with the limiting column 11, there are two limiting columns 11, the two limiting columns 11 are distributed on both sides of the pillar 14, one end of the limiting column 11 is fixedly connected with the collecting box 1, and the top of the collecting box 1 is fixedly connected with a control motor 21. The output shaft of the control motor 21 is fixedly connected to the blocking plate 10, one end of the blocking plate 10 is movably connected to the feeding pipe 9, one end of the feeding pipe 9 is fixedly connected to the collecting box 1, the inner wall of the collecting box 1 is fixedly connected to the second valve 15, one end of the second valve 15 is fixedly connected to the discharge pipe 16, and through the control motor 21, the blocking plate 10, the feeding pipe 9, the collecting box 1, the floating plate 13, the sensor 32, the magnetic card 12, the second valve 15, and the discharge pipe 16, an SCR denitration catalyst anti-poisoning device is convenient for adding sodium hydroxide solution into the absorption box, thereby avoiding harm to workers when adding and replacing sodium hydroxide solution into the absorption box.

[0032] When in use, start the control motor 21, and the control motor 21 drives the blocking plate 10 to make the feed pipe 9 unobstructed, and then the sodium hydroxide solution in the external storage box enters the collection box 1 through the feed pipe 9. The mass of the floating plate 13 is relatively light, so the floating plate 13 floats on the liquid surface of the sodium hydroxide solution. As more and more sodium hydroxide solution enters the collection box 1, the floating plate 13 rises with the increase of sodium hydroxide solution. When the floating plate 13 reaches the specified height, the sensor 32 in the floating plate 13 senses the specified magnetic card 12 in the pillar 14, and the control motor 21 drives the blocking plate 10 to block the feed pipe 9, so that the sodium hydroxide solution no longer enters the collection box 1, thereby controlling the amount of sodium hydroxide solution entering the collection box 1. When the sodium hydroxide solution completes absorbing the toxic gas, the second valve 15 is opened to discharge the sodium hydroxide solution in the collection box 1.

[0033] Example 2

[0034] See also Figures 1 to 8 The utility model provides a technical solution: an SCR denitration catalyst anti-poisoning device, comprising a bottom plate 8 and a reaction box 7, a collecting box 1 is fixedly connected to the top of the bottom plate 8, a display screen 20 is fixedly connected to the outside of the collecting box 1, a first feed pipe 5 is fixedly connected to the top of the collecting box 1, a control motor 21 and a plugging plate 10 are arranged on the first feed pipe 5, a control motor 21 and a plugging plate 10 are arranged on the second feed pipe 6, a second feed pipe 6 is fixedly connected to the top of the collecting box 1, an air duct 3 is fixedly connected to the inner wall of the collecting box 1, and a first valve 4 is fixedly connected to the inner wall of the air duct 3;

[0035] The inner wall of the reaction box 7 is movably connected with a power block 17, one end of the power block 17 is fixedly connected with a first gear 22, the outer side of the first gear 22 is meshedly connected with a second gear 23, one end of the second gear 23 is fixedly connected with a transmission shaft 24, the outer side of the transmission shaft 24 is threadedly connected with a first clamping block 25, the outer side of the first clamping block 25 is slidably connected with a fixed block 19, the outer side of the fixed block 19 is fixedly connected with a sealing strip 18, the outer side of the sealing strip 18 is movably connected with the reaction box 7, the inner wall of the fixed block 19 is movably connected with a threaded rod 26, the outer side of the threaded rod 26 is threadedly connected with a second clamping block 31, and the second clamping block 31 is threadedly connected with the second clamping block 31. The outer side of the block 31 is slidably connected with the mounting block 30, one end of the mounting block 30 is fixedly connected with the second motor 29, the output shaft of the second motor 29 is fixedly connected with the connecting shaft 28, one end of the connecting shaft 28 is fixedly connected with the fan blade 27, through the power block 17, the first gear 22, the second gear 23, the transmission shaft 24, the fixed block 19, the first clamping block 25, the reaction box 7, the threaded rod 26, the mounting block 30, the second motor 29, and the sealing strip 18, an SCR denitration catalyst anti-poisoning device is convenient for repairing and replacing the first motor, avoiding the inability to repair and replace the first motor.

[0036] When in use, the power block 17 is reversed, the power block 17 drives the first gear 22, the first gear 22 drives the second gear 23, and the second gear 23 drives the transmission shaft 24, so that the first clamping block 25 exits the fixed block 19. After the first clamping block 25 is no longer restricted to the fixed block 19, the fixed block 19 can be removed from the reaction box 7, and then the threaded rod 26 is reversed to make the second clamping block 31 on the threaded rod 26 exit the mounting block 30. After the mounting block 30 is no longer restricted by the second clamping block 31, the mounting block 30 is removed from the fixed block 19, thereby completing the disassembly of the second motor 29, which is convenient for the maintenance of the second motor 29, and the sealing strip 18 on the outside of the fixed block 19 can ensure that the reaction box 7 is still in a sealed state.

[0037] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An SCR denitration catalyst anti-poisoning device, comprising a base plate (8) and a reaction box (7), characterized in that: The top of the bottom plate (8) is fixedly connected to a collecting box (1), the outer side of the collecting box (1) is fixedly connected to a display screen (20), the top of the collecting box (1) is fixedly connected to a first feeding pipe (5), the top of the collecting box (1) is fixedly connected to a second feeding pipe (6), the inner wall of the collecting box (1) is fixedly connected to an air duct (3), and the inner wall of the air duct (3) is fixedly connected to a first valve (4); The top of the bottom plate (8) is fixedly connected to a collecting box (1), the inner wall of the collecting box (1) is fixedly connected to a pillar (14), the outer side of the pillar (14) is slidably connected to a floating plate (13), the inner wall of the floating plate (13) is slidably connected to a limiting column (11), one end of the limiting column (11) is fixedly connected to the collecting box (1), the top of the collecting box (1) is fixedly connected to a control motor (21), the output shaft of the control motor (21) is fixedly connected to a blocking plate (10), one end of the blocking plate (10) is movably connected to a feed pipe (9), one end of the feed pipe (9) is fixedly connected to the collecting box (1), the inner wall of the collecting box (1) is fixedly connected to a second valve (15), and one end of the second valve (15) is fixedly connected to a discharge pipe (16); The inner wall of the reaction box (7) is movably connected to a power block (17); one end of the power block (17) is fixedly connected to a first gear (22); the outer side of the first gear (22) is meshingly connected to a second gear (23); one end of the second gear (23) is fixedly connected to a transmission shaft (24); the outer side of the transmission shaft (24) is threadedly connected to a first clamping block (25); the outer side of the first clamping block (25) is slidably connected to a fixed block (19); the inner wall of the fixed block (19) is movably connected to a threaded rod (26); the outer side of the threaded rod (26) is threadedly connected to a second clamping block (31); the outer side of the second clamping block (31) is slidably connected to a mounting block (30); one end of the mounting block (30) is fixedly connected to a second motor (29); the output shaft of the second motor (29) is fixedly connected to a connecting shaft (28); one end of the connecting shaft (28) is fixedly connected to a fan blade (27).

2. The SCR denitration catalyst anti-poisoning device according to claim 1, characterized in that: The outer side of the fixed block (19) is fixedly connected to a sealing strip (18), and the outer side of the sealing strip (18) is movably connected to a reaction box (7).

3. The SCR denitration catalyst anti-poisoning device according to claim 1, characterized in that: The inner wall of the pillar (14) is fixedly connected to a magnetic card (12), and the inner wall of the floating plate (13) is fixedly connected to an inductor (32).

4. The SCR denitration catalyst anti-poisoning device according to claim 1, characterized in that: A control motor (21) and a blocking plate (10) are arranged on the first feeding pipe (5), and a control motor (21) and a blocking plate (10) are arranged on the second feeding pipe (6).

5. The SCR denitration catalyst anti-poisoning device according to claim 1, characterized in that: There are two limiting columns (11), and the two limiting columns (11) are distributed on both sides of the support column (14).

6. The SCR denitration catalyst anti-poisoning device according to claim 1, characterized in that: The height of the inner wall of the support column (14) is equal to the height of the inner wall of the collection box (1), and the height of the support column (14) is equal to the height of the limiting column (11).

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