Catalyst filling structure for cement denitration

Abstract

The utility model discloses a catalyst filling structure for cement denitration, which comprises a filling structure, the filling structure comprises a first partition plate, a second partition plate and a filling frame, the first partition plate is fixedly connected with the second partition plate, and the second partition plate is fixedly mounted in the filling frame; the first connecting plate and the second connecting plate are fixedly connected between the filling frame and the outer cover; the first composition mechanism is connected with the first connecting plate, and the first composition mechanism comprises a double-thread rod, a sliding rail, an end block, a screw joint block, a sliding block, a first inserting rod and a pushing rod; the second composition mechanism is connected with the second connecting plate, and the second composition mechanism comprises a long plate, a spring, a short plate, a sliding rod and a second inserting rod; and the third composition mechanism is connected with the outer cover. The filling structure can be replaced, meanwhile, operation is convenient, the rotating disc can be limited, and the filling structure can be installed more stably.

Description

A catalyst packing structure for cement denitrification Technical Field

[0001] This utility model relates to the field of filling structures, specifically to a catalyst filling structure for cement denitrification. Background Technology

[0002] To mitigate air pollution from cement plants, catalysts are typically used to denitrify cement flue gas, reducing nitrogen oxide emissions. For example, patent application number 202120999508.2 discloses a catalyst structure for cement denitrification, comprising a cube composed of four catalyst layers. Side sealing plates are installed between the outer perimeter of the four catalyst layer cube and the inner wall of the reactor. Each catalyst layer is supported by a steel structural support beam, which is fixedly connected to the inner wall of the reactor. A protective mesh is installed above each catalyst layer. Each catalyst layer consists of four rows and nine columns of catalyst modules, each with a honeycomb porous structure. This design offers the following advantages: a reasonable structure and good denitrification effect.

[0003] However, the patent still has the following drawbacks: since the steel structure support beam is fixedly connected to the inner wall of the reactor, it is difficult to replace if the steel structure support beam is damaged during use. Summary of the Invention

[0004] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide a catalyst packing structure for cement denitrification that is replaceable, easy to operate, and can also limit the rotation of the rotating disk, making the packing structure more stable during installation.

[0005] According to the technical solution provided by the present utility model embodiment, a catalyst filling structure for cement denitrification includes a filling structure comprising a first partition, a second partition, and a filling frame. The first partition is fixedly connected to the second partition, and the second partition is fixedly installed inside the filling frame. The first partition and the second partition are perpendicular to each other. A first connecting plate and a second connecting plate are fixedly connected between the filling frame and an outer cover. The first connecting plate and the second connecting plate are respectively located above and below the filling frame. A first component mechanism is connected to the first connecting plate. The first component mechanism includes a double-threaded rod, a slide rail, an end block, a screw block, a slider, a first insert rod, and a push rod. The rod is connected to the first connecting plate via a first bearing. The slide rail is fixedly connected to the first connecting plate. The end block is fixedly installed at the end of the double-threaded rod. The outer side of the double-threaded rod is provided with a first thread and a second thread. One side of the screw block is screwed to the outer side of the first thread, and the other side of the screw block is screwed to the outer side of the second thread. The slider is fixedly installed on the side of the screw block, and the end of the slider extends into the interior of the slide rail. The first insert rod and the push rod are both fixedly connected to the screw block. The side of the outer cover is provided with a first through hole corresponding to the first insert rod. A second component mechanism is connected to the second connecting plate. The second component mechanism includes a long plate, a spring, and a short plate. The system comprises a plate, a sliding rod, and a second insert rod; a spring is connected between the second connecting plate and the long plate; a short plate is fixedly installed at the end of the long plate; the sliding rod is fixedly connected to the short plate and slides in contact with the second connecting plate; a sliding through hole matching the sliding rod is provided on the side of the second connecting plate; the sliding rod passes through the sliding through hole; a second through hole corresponding to the second insert rod is provided on the side of the outer cover; and a third component mechanism is connected to the outer cover and includes a first helical gear, a second helical gear, a rotating shaft, a rotating disk, a screw, a screw sleeve, an end plate, and a limiting rod; the first helical gear is fixedly installed on the outside of the double-threaded rod, and the second helical gear is fixedly installed on... On the outside of the rotating shaft, the second helical gear meshes with the first helical gear. The rotating shaft is connected to the outer cover via a second bearing. The rotating disk is fixedly installed at the end of the rotating shaft. The screw is fixedly connected to the outer cover. The screw sleeve is screwed onto the outside of the screw. The end plate is fixedly installed at the end of the screw sleeve. The limiting rod is fixedly connected to the end plate. The side of the rotating disk is provided with insertion holes at intervals. The insertion holes are arranged in a circular array. The limiting rod is inserted into the insertion holes. The distance between the screw and the end plate is greater than the length of the limiting rod. The mesh cover is installed on the front and rear sides of the filling frame via a fourth component mechanism. The fourth component mechanism includes a horizontal plate, a hinge block, an abutment block, and bolts.The horizontal plate is fixedly connected to the side of the outer cover. The hinge block is hinged between adjacent horizontal plates. A hinge shaft is fixedly connected to the side of the hinge block. The abutment block is fixedly connected to the hinge block. The bolt is screwed to one side of the horizontal plate and the hinge block respectively. The side of the hinge block and one side of the horizontal plate are provided with threaded holes that match the bolts. The abutment block abuts against the side of the mesh cover. The thickness of the abutment block is greater than the thickness of the hinge block. The front side of the front mesh cover is flush with the front side of the outer cover. The rear side of the rear mesh cover is flush with the rear side of the outer cover. Fixing strips are located on the left and right sides of the outer cover. The side of the fixing strip is provided with countersunk holes. The side of the fixing strip is provided with a first slot corresponding to the first insertion rod. The end of the first insertion rod passes through the first through hole and is inserted into the first slot. The end of the push rod abuts against the side of the long plate. The side of the fixing strip is provided with a second slot corresponding to the second insertion rod. The end of the second insertion rod passes through the second through hole and is inserted into the second slot.

[0006] In summary, the beneficial effects of this utility model are as follows:

[0007] 1. Through the arrangement of the first connecting plate, the second connecting plate, the outer cover, the first component mechanism, the second component mechanism and the third component mechanism, if the filling structure is damaged during use, the filling structure can be replaced, and the operation is convenient. It can also limit the rotation of the rotating disk, making the filling structure more stable during installation.

[0008] 2. The mesh cover and the fourth component make catalyst replacement convenient when the catalyst reaches the end of its service life. Attached Figure Description

[0009] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0010] Figure 1 is a schematic diagram of the structure of this utility model;

[0011] Figure 2 is a top view of the connection between the first connecting plate, outer cover, double threaded rod and the third component of this utility model.

[0012] Figure 3 is a structural schematic diagram of the connection between the first connecting plate, the first helical gear and the first component mechanism of this utility model;

[0013] Figure 4 is a structural schematic diagram of the connection between the first partition, the second partition, the filling frame, the first connecting plate, the second connecting plate, the outer cover, the second component mechanism, and the fixing strip of this utility model;

[0014] Figure 5 is a schematic diagram of the fourth component of this utility model.

[0015] The diagram is labeled as follows: 1. First partition; 2. Second partition; 3. Filling frame; 4. First connecting plate; 5. Second connecting plate; 6. Outer cover; 7. First component mechanism; 8. Double threaded rod; 9. Slide rail; 10. End block; 11. Screw block; 12. Slider; 13. First insert rod; 14. Push rod; 15. Second component mechanism; 16. Long plate; 17. Spring; 18. Short plate; 19. Slide rod; 20. Second insert rod; 21. Third component mechanism; 22. First helical gear; 23. Second helical gear; 24. Rotating shaft; 25. Rotating disk; 26. Screw; 27. Screw sleeve; 28. End plate; 29. ​​Limiting rod; 30. Mesh cover; 31. Fourth component mechanism; 32. Horizontal plate; 33. Hinge block; 34. Abutment block; 35. Bolt; 36. Fixing strip. Detailed Implementation

[0016] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.

[0017] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0018] Please refer to Figures 1, 2, 3, 4, and 5. A catalyst packing structure for cement denitrification includes a packing structure comprising a first partition 1, a second partition 2, and a packing frame 3. The first partition 1 is fixedly connected to the second partition 2, and the second partition 2 is fixedly installed inside the packing frame 3. A first connecting plate 4 and a second connecting plate 5 are fixedly connected between the packing frame 3 and an outer cover 6. A first component mechanism 7 is connected to the first connecting plate 4 and includes a double threaded rod 8, a slide rail 9, an end block 10, a screw block 11, a slider 12, a first insert rod 13, and a push rod 14. A second component mechanism 15 is connected to... The second connecting plate 5 is connected, and the second component 15 includes a long plate 16, a spring 17, a short plate 18, a sliding rod 19, and a second insert rod 20; the third component 21 is connected to the outer cover 6, and the third component 21 includes a first helical gear 22, a second helical gear 23, a rotating shaft 24, a rotating disk 25, a screw 26, a screw sleeve 27, an end plate 28, and a limiting rod 29; the mesh cover 30 is installed on the front and rear sides of the filling frame 3 through the fourth component 31, and the fourth component 31 includes a horizontal plate 32, a hinge block 33, an abutment block 34, and a bolt 35; the fixing strip 36 is located on the left and right sides of the outer cover 6.

[0019] As shown in Figures 1, 2, 3 and 4, the first partition 1 and the second partition 2 are perpendicular to each other, and the first connecting plate 4 and the second connecting plate 5 are located above and below the filling frame 3, respectively. The double-threaded rod 8 is connected to the first connecting plate 4 via a first bearing. The slide rail 9 is fixedly connected to the first connecting plate 4. The end block 10 is fixedly installed at the end of the double-threaded rod 8. The double-threaded rod 8 has a first thread and a second thread on its outer side. One side of the screw block 11 is screwed onto the outer side of the first thread, and the other side of the screw block 11 is screwed onto the outer side of the second thread. The slider 12 is fixedly installed on the side of the screw block 11. The end of the slider 12 extends into the interior of the slide rail 9. The interior of the slide rail 9 has a groove that matches the slider 12. The first insertion rod 13 and the push rod 14 are both fixedly connected to the screw block 11. The side of the outer cover 6 has a first through hole corresponding to the first insertion rod 13, which facilitates the passage of the first insertion rod 13. The side of the fixing strip 36 has a first slot corresponding to the first insertion rod 13. The end of the first insertion rod 13 passes through the first through hole and is inserted into the first slot. The end of the push rod 14 abuts against the side of the long plate 16.

[0020] As shown in Figures 1, 2, 3, and 4, the spring 17 is connected between the second connecting plate 5 and the long plate 16. The short plate 18 is fixedly installed at the end of the long plate 16. The sliding rod 19 is fixedly connected to the short plate 18 and slides in contact with the second connecting plate 5. The side of the second connecting plate 5 is provided with a sliding through hole that matches the sliding rod 19. The sliding rod 19 passes through the sliding through hole. The side of the outer cover 6 is provided with a second through hole corresponding to the second insertion rod 20, which facilitates the passage of the second insertion rod 20. The side of the fixing strip 36 is provided with a second slot corresponding to the second insertion rod 20. The end of the second insertion rod 20 passes through the second through hole and is inserted into the second slot. The first helical gear 22 is fixedly installed on the outside of the double-threaded rod 8, and the second helical gear 23 is fixedly installed on the outside of the rotating shaft 24. The second helical gear 23 meshes with the first helical gear 22. The rotating shaft 24 is connected to the outer cover 6 through a second bearing. The rotating disk 25 is fixedly installed at the end of the rotating shaft 24. The screw 26 is fixedly connected to the outer cover 6. The screw sleeve 27 is screwed onto the outside of the screw 26. The end plate 28 is fixedly installed at the end of the screw sleeve 27. The limiting rod 29 is fixedly connected to the end plate 28. The rotating disk 25 has insertion holes spaced apart on its side. The insertion holes are arranged in a circular array. The limiting rod 29 is inserted into the insertion holes. The distance between the screw 26 and the end plate 28 is greater than the length of the limiting rod 29. The outer cover 6 has an opening on its side that corresponds to the mesh cover 30.

[0021] As shown in Figures 1 and 5, the horizontal plate 32 is fixedly connected to the side of the outer cover 6. The hinge block 33 is hinged between adjacent horizontal plates 32. A hinge shaft is fixedly connected to the side of the hinge block 33 to facilitate hinge operation. The abutment block 34 is fixedly connected to the hinge block 33. The bolt 35 is screwed to one side of the horizontal plate 32 and the hinge block 33 respectively. Both the hinge block 33 and the side of one side of the horizontal plate 32 are provided with threaded holes that match the bolt 35 to facilitate screwing. The abutment block 34 abuts against the side of the mesh cover 30. The thickness of the abutment block 34 is greater than the thickness of the hinge block 33. The front side of the front mesh cover 30 is flush with the front side of the outer cover 6, and the rear side of the rear mesh cover 30 is flush with the rear side of the outer cover 6. The side of the fixing strip 36 is provided with countersunk holes to facilitate installation.

[0022] In use: First, fill the catalyst one by one into the chamber between the first connecting plate 4, the second connecting plate 5, and the filling frame 3. Then, use countersunk screws to connect the fixing strip 36 to the inner wall of the reactor. If the filling structure is damaged during use, first rotate the threaded sleeve 27 of the third component mechanism 21. The limiting rod 29 will move out of the insertion hole of the rotating disk 25, which can release the limitation on the rotating disk 25. Then rotate the rotating disk 25, which can drive the rotating shaft 24, the second helical gear 23, and the first helical gear 22 to rotate. The first helical gear 22 can drive the double threaded rod 8 of the first component mechanism 7 to rotate. The double threaded rod 8 can drive the threaded blocks 11 and the slider on both sides to rotate. When the push rod 12 and push rod 14 approach each other, the end of the first insert rod 13 will move out of the first slot of the fixing strip 36. At the same time, the spring 17 of the second component mechanism 15 will return to its original position, which can drive the long plate 16 and the short plate 18 away from the fixing strip 36. The end of the second insert rod 20 will move out of the second slot of the fixing strip 36. At this time, the damaged filling structure can be removed, making the filling structure replaceable and easy to operate. When the catalyst reaches the end of its service life, the bolt 35 of the fourth component mechanism 31 is unscrewed, and the hinge block 33 is rotated, so that the abutment block 34 rotates away from the screen cover 30. Then the screen cover 30 can be removed, making catalyst replacement convenient.

[0023] The above description is merely a preferred embodiment of this utility model and an explanation of the technical principles and solutions employed. Furthermore, the scope of this invention is not limited to the specific combinations of the above-described technical features, but also includes other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above-described features with (but not limited to) technical features with similar functions disclosed in this utility model.

Claims

1. A catalyst packing structure for cement denitrification, characterized in that: The system includes a filling structure comprising a first partition (1), a second partition (2), and a filling frame (3), wherein the first partition (1) is fixedly connected to the second partition (2), and the second partition (2) is fixedly installed inside the filling frame (3); a first connecting plate (4) and a second connecting plate (5) are fixedly connected between the filling frame (3) and the outer cover (6); a first component mechanism (7) is connected to the first connecting plate (4), and the first component mechanism (7) includes a double threaded rod (8), a slide rail (9), an end block (10), a screw block (11), a slider (12), a first insert rod (13), and a push rod (14); and a second component mechanism (15) is connected to the second connecting plate (5). The system includes a long plate (16), a spring (17), a short plate (18), a sliding rod (19), and a second insert rod (20); a third component mechanism (21), which is connected to the outer cover (6), and includes a first helical gear (22), a second helical gear (23), a rotating shaft (24), a rotating disk (25), a screw (26), a screw sleeve (27), an end plate (28), and a limiting rod (29); a mesh cover (30), which is installed on the front and rear sides of the filling frame (3) through a fourth component mechanism (31), and includes a horizontal plate (32), a hinge block (33), an abutment block (34), and a bolt (35); and a fixing strip (36), which is located on the left and right sides of the outer cover (6).

2. The catalyst packing structure for cement denitrification according to claim 1, characterized in that: The first partition (1) and the second partition (2) are perpendicular to each other, and the first connecting plate (4) and the second connecting plate (5) are located above and below the filling frame (3), respectively.

3. The catalyst packing structure for cement denitrification according to claim 1, characterized in that: The double-threaded rod (8) is connected to the first connecting plate (4) via a first bearing. The slide rail (9) is fixedly connected to the first connecting plate (4). The end block (10) is fixedly installed at the end of the double-threaded rod (8). The double-threaded rod (8) has a first thread and a second thread on its outer side. One side of the threaded block (11) is threaded onto the outer side of the first thread, and the other side of the threaded block (11) is threaded onto the outer side of the second thread. The slider (12) is fixedly installed on the side of the threaded block (11). The end of the block (12) extends into the interior of the slide rail (9). The first insert rod (13) and the push rod (14) are both fixedly connected to the screw block (11). The side of the outer cover (6) is provided with a first through hole corresponding to the first insert rod (13). The side of the fixing strip (36) is provided with a first slot corresponding to the first insert rod (13). The end of the first insert rod (13) passes through the first through hole and is inserted into the first slot. The end of the push rod (14) abuts against the side of the long plate (16).

4. The catalyst packing structure for cement denitrification according to claim 1, characterized in that: The spring (17) is connected between the second connecting plate (5) and the long plate (16). The short plate (18) is fixedly installed at the end of the long plate (16). The slide rod (19) is fixedly connected to the short plate (18). The slide rod (19) slides in contact with the second connecting plate (5). The side of the second connecting plate (5) is provided with a sliding through hole that matches the slide rod (19). The slide rod (19) passes through the sliding through hole. The side of the outer cover (6) is provided with a second through hole corresponding to the second insert rod (20). The side of the fixing strip (36) is provided with a second slot corresponding to the second insert rod (20). The end of the second insert rod (20) passes through the second through hole and is inserted into the second slot.

5. The catalyst packing structure for cement denitrification according to claim 1, characterized in that: The first helical gear (22) is fixedly installed on the outside of the double threaded rod (8), the second helical gear (23) is fixedly installed on the outside of the rotating shaft (24), the second helical gear (23) meshes with the first helical gear (22), the rotating shaft (24) is connected to the outer cover (6) through the second bearing, the rotating disk (25) is fixedly installed at the end of the rotating shaft (24), the screw (26) is fixedly connected to the outer cover (6), the screw sleeve (27) is screwed to the outside of the screw (26), the end plate (28) is fixedly installed at the end of the screw sleeve (27), the limiting rod (29) is fixedly connected to the end plate (28), the side of the rotating disk (25) is provided with insertion holes at intervals, the insertion holes are distributed in a ring array, the limiting rod (29) is inserted into the insertion holes, and the distance between the screw (26) and the end plate (28) is greater than the length of the limiting rod (29).

6. The catalyst packing structure for cement denitrification according to claim 1, characterized in that: The horizontal plate (32) is fixedly connected to the side of the outer cover (6). The hinge block (33) is hinged between adjacent horizontal plates (32). The side of the hinge block (33) is fixedly connected to a hinge shaft. The abutment block (34) is fixedly connected to the hinge block (33). The bolt (35) is screwed to one side of the horizontal plate (32) and the hinge block (33) respectively. The side of the hinge block (33) and the side of the horizontal plate (32) are provided with threaded holes that match the bolt (35). The abutment block (34) abuts against the side of the mesh cover (30). The thickness of the abutment block (34) is greater than the thickness of the hinge block (33).

7. The catalyst packing structure for cement denitrification according to claim 1, characterized in that: The front side of the front mesh cover (30) is flush with the front side of the outer cover (6), and the rear side of the rear mesh cover (30) is flush with the rear side of the outer cover (6). The side of the fixing strip (36) is provided with countersunk holes.

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