Waste denitration catalyst reclaimed material screening device

Abstract

The utility model discloses a waste denitration catalyst reclaimed material screening device, and relates to the technical field of waste denitration catalyst reclaimed material screening, in particular to a screening device shell, the outer surface of a center rod is rotationally connected with a screen barrel through a bearing, and the inner side wall of the screen barrel is provided with an arc-shaped driving piece through a supporting frame. An adjusting shaft is rotatably connected to the inner side wall of the center rod, a telescopic outer pipe is arranged on the outer surface of the center rod, a rectangular sleeve is rotatably connected to the inner side wall of the telescopic outer pipe, a rectangular limiting rod is inserted into the inner side wall of the rectangular sleeve, a knocking block is slidably connected to the inner side wall of the telescopic outer pipe, and an adjusting rod is rotatably connected to the inner side wall of the knocking block; an eccentric block is arranged at one end of the adjusting rod, a telescopic inner rod is arranged at one end of the telescopic outer pipe, and an arc-shaped smashing piece is arranged at one end of the telescopic inner rod. The device has the beneficial effects that the screening efficiency is effectively improved, the knocking and smashing force is conveniently adjusted, and filtering holes are conveniently cleaned to prevent blockage.

Description

Technical Field

[0001] The utility model relates to the technical field of waste denitration catalyst recovery material screening, in particular to a waste denitration catalyst recovery material screening device. Background Art

[0002] Catalysts in denitration systems generally refer to catalysts used in SCR (selective catalytic reduction) denitration systems in power plants. In the SCR reaction, they are substances that cause the reductant to selectively react with nitrogen oxides in the flue gas at a certain temperature. Catalysts can be divided into three types: plate, honeycomb and corrugated plate. In an environment with variable ash conditions, its anti-blocking and anti-wear properties are the key to ensuring the long-term safe and stable operation of SCR equipment. In terms of anti-blocking ash, for a certain reactor cross-section, at the same catalyst pitch, the plate catalyst has the largest flow area, generally above 85%, followed by the honeycomb catalyst, with a flow area generally around 80%, and the flow area of ​​the corrugated plate catalyst is similar to that of the honeycomb catalyst. Under the same design conditions, if a large-pitch honeycomb catalyst is appropriately selected, its anti-clogging effect can be close to that of a plate catalyst. The recycling of scrapped catalysts is beneficial to environmental protection, saving raw materials and realizing the recycling of resources. If it is not recycled, it will cause serious waste of resources and secondary pollution of the environment. After the waste denitrification catalyst powder is recycled through physical and chemical processes, it can be used as raw materials in the fields of denitrification catalyst and building materials manufacturing.

[0003] After the existing denitrification catalyst is recycled, the waste denitrification catalyst will first be crushed, and then the particles or powders that meet the particle size will be carried out for the next step. However, in actual operation, the crushed waste denitrification catalyst will first be filtered to screen out larger particles for secondary crushing. In this process, workers will need to manually put the large particles of denitrification catalyst in the screen into the crusher for secondary crushing. The steps are relatively cumbersome and seriously delay production efficiency. Therefore, a waste denitrification catalyst recovery material screening device is urgently needed to solve the above problems. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides a waste denitration catalyst recovery material screening device, which solves the problems raised in the above-mentioned background technology.

[0006] (II) Technical solution

[0007] To achieve the above objectives, the utility model is implemented through the following technical solutions: a waste denitration catalyst recovery material screening device, comprising a screening device shell, a lower surface of the screening device shell is provided with support legs, a feeding port is provided on the right side of the upper surface of the screening device shell, a feeding port is provided on the lower surface of the screening device shell, a driving motor is provided on the left side of the screening device shell, a center rod is fixedly connected to the inner side wall of the screening device shell, a screen cylinder is rotatably connected to the outer surface of the center rod through a bearing, a screen feed port is provided on the right side of the screen cylinder, a filter hole is provided on the outer surface of the screen cylinder, a rotating shaft is rotatably connected to the inner side wall of the screening device shell, and the rotating shaft The outer surface of the cleaning rod is provided with a cleaning rod, the inner wall of the screen cylinder is provided with an arc-shaped driving piece through a supporting frame, the inner side wall of the center rod is rotatably connected with an adjusting shaft, the outer surface of the center rod is provided with a telescopic outer tube, the inner side wall of the telescopic outer tube is rotatably connected with a rectangular sleeve, the inner side wall of the rectangular sleeve is inserted with a rectangular limiting rod, the inner side wall of the telescopic outer tube is slidably connected with a knocking block, the inner side wall of the knocking block is rotatably connected with an adjusting rod, one end of the adjusting rod is provided with an eccentric block, one end of the telescopic outer tube is provided with a telescopic inner rod, one end of the telescopic inner rod is provided with an arc-shaped crushing piece, the outer surface of the screening device shell is provided with a dial, and one end of the adjusting shaft is provided with an adjusting handle.

[0008] Optionally, a plurality of filter holes are provided and are evenly distributed in a circular array, a plurality of cleaning rods are provided and are evenly distributed in a circular array, and one end of the cleaning rod is adapted to the inner wall of the filter hole.

[0009] Optionally, a plurality of arc-shaped driving plates are provided and are evenly distributed in a ring array.

[0010] Optionally, a first bevel gear is disposed on the outer surface of the adjusting shaft, a second bevel gear is disposed at one end of the rectangular sleeve, and the outer surface of the second bevel gear is drivingly connected to the outer surface of the first bevel gear.

[0011] Optionally, a first spring is provided at one end of the knocking block, and one end of the first spring abuts against the outer surface of the first bevel gear.

[0012] Optionally, a fourth bevel gear is provided at one end of the adjusting rod, a third bevel gear is provided at one end of the rectangular limiting rod, and an outer surface of the third bevel gear is transmission-connected to an outer surface of the fourth bevel gear.

[0013] Optionally, a second spring is provided at one end of the telescopic inner rod, one end of the second spring abuts against the outer surface of the knocking block, and one end of the telescopic inner rod abuts against the outer surface of the knocking block, and the elastic force of the second spring is slightly smaller than the elastic force of the first spring.

[0014] (III) Beneficial effects

[0015] The utility model provides a waste denitration catalyst recovery material screening device, which has the following beneficial effects:

[0016] 1. The waste denitration catalyst recovery material screening device has the effect of automatically crushing larger particles directly during screening through the arrangement of the arc-shaped driving plate, the telescopic outer tube, the first spring, the knocking block, the adjusting rod, the telescopic inner rod and the arc-shaped crushing plate. Through the coordinated arrangement of the arc-shaped driving plate and the adjusting rod, during use, when the screen cylinder rotates, the knocking block can be pushed toward the upper end of the telescopic outer tube, thereby applying pressure to the first spring, and when released, one end of the telescopic inner rod can be knocked, so that larger particles can be knocked and crushed by the arc-shaped crushing plate. During screening, there is no need to pour larger particles into a crusher for crushing, and they can be directly crushed during the screening process, thereby achieving the purpose of effectively improving the screening efficiency.

[0017] 2. The waste denitrification catalyst recovery material screening device has the effect of facilitating the adjustment of the knocking force of the arc-shaped crushing piece through the arrangement of the adjusting shaft, rectangular sleeve, rectangular limit rod, adjusting rod, eccentric block, dial and adjusting handle. Through the coordinated arrangement of the adjusting shaft, first bevel gear, rectangular sleeve, second bevel gear, rectangular limit rod, third bevel gear, adjusting rod and fourth bevel gear, the adjusting rod can be directly driven to rotate by rotating the adjusting handle during use, thereby rotating and adjusting the eccentric block. When the contact surface between the eccentric block and the arc-shaped driving piece moves from the short axis to the long axis, the stroke of the knocking block can be increased, and the compression force of the first spring is increased. Therefore, after the first spring is released, the knocking force of the knocking block on the end of the telescopic inner rod can be effectively increased, thereby achieving the purpose of facilitating the adjustment of the knocking crushing force.

[0018] 3. The waste denitration catalyst recovery material screening device has the effect of facilitating the cleaning of the inside of the filter hole through the arrangement of the rotating shaft and the cleaning rod. Through the coordinated arrangement of the cleaning rod and the filter hole, the end of the cleaning rod is inserted into the inside of the filter hole during use. When the screen cylinder rotates, the rotating shaft is also driven to rotate under the meshing of the filter hole and the cleaning rod, so that the filter holes on the outer surface of the screen cylinder can be fully cleaned, thereby achieving the purpose of facilitating the cleaning of the filter hole and preventing blockage. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0020] Figure 2 For this utility model Figure 1 The structural diagram at A in the middle;

[0021] Figure 3 It is a schematic diagram of the structure of the utility model from the front;

[0022] Figure 4 It is a three-dimensional structural schematic diagram of the screen cylinder of the utility model;

[0023] Figure 5 For this utility model Figure 4 Schematic diagram of the structure at B in the middle;

[0024] Figure 6 This is a schematic diagram of the three-dimensional structure inside the screen cylinder of the utility model;

[0025] Figure 7 It is a schematic structural diagram of the internal side cross-section of the screen cylinder of the utility model;

[0026] Figure 8 For this utility model Figure 7 Schematic diagram of the structure at C in the middle;

[0027] Fig. 9 For this utility model Figure 7 Schematic diagram of the structure of the cross section at point C.

[0028] In the figure: 1. Screening device housing; 2. Support legs; 3. Feed inlet; 4. Discharge inlet; 5. Drive motor; 6. Center rod; 7. Bearing; 8. Screen cylinder; 9. Screen feed inlet; 10. Filter hole; 11. Rotating shaft; 12. Cleaning rod; 13. Support frame; 14. Arc-shaped drive sheet; 15. Adjustment shaft; 16. First bevel gear; 17. Telescopic outer tube; 18. Rectangular sleeve; 19. Second bevel gear; 20. Rectangular limit rod; 21. First spring; 22. Knocking block; 23. Third bevel gear; 24. Adjustment rod; 25. Fourth bevel gear; 26. Eccentric block; 27. Telescopic inner rod; 28. Arc-shaped crushing sheet; 29. ​​Dial; 30. Adjustment handle; 31. Second spring. DETAILED DESCRIPTION

[0029] 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.

[0030] Example 1

[0031] The utility model provides a technical solution: a waste denitration catalyst recovery material screening device, comprising a screening device shell 1, a lower surface of the screening device shell 1 is provided with a support leg 2, a right side of the upper surface of the screening device shell 1 is provided with a feed inlet 3, a lower surface of the screening device shell 1 is provided with a feed outlet 4, a left side of the screening device shell 1 is provided with a drive motor 5, an inner side wall of the screening device shell 1 is fixedly connected with a center rod 6, an outer surface of the center rod 6 is rotatably connected with a screen cylinder 8 through a bearing 7, a screen feed inlet 9 is provided on the right side of the screen cylinder 8, an inner side wall of the screen cylinder 8 is provided with an arc-shaped drive sheet 14 through a support frame 13, and an arc-shaped drive sheet 15 is provided on the inner side wall of the screen cylinder 8. There are several drive plates 14 that are evenly distributed in a circular array. The inner wall of the telescopic outer tube 17 is slidably connected with a knocking block 22, and the inner wall of the knocking block 22 is rotatably connected with an adjusting rod 24. An eccentric block 26 is provided at one end of the adjusting rod 24, and a telescopic inner rod 27 is provided at one end of the telescopic outer tube 17. A second spring 31 is provided at one end of the telescopic inner rod 27, and one end of the second spring 31 abuts against the outer surface of the knocking block 22. One end of the telescopic inner rod 27 abuts against the outer surface of the knocking block 22. The elastic force of the second spring 31 is slightly smaller than the elastic force of the first spring 21, and an arc-shaped crushing piece 28 is provided at one end of the telescopic inner rod 27.

[0032] In order to improve the screening efficiency, Figures 1 to 9 As shown, the present application adopts the following structure, through the arrangement of the arc-shaped driving piece 14, the telescopic outer tube 17, the first spring 21, the knocking block 22, the adjusting rod 24, the telescopic inner rod 27 and the arc-shaped crushing piece 28, the waste denitration catalyst recovery material screening device has the effect of automatically crushing larger particles directly during screening, through the coordinated arrangement of the arc-shaped driving piece 14 and the adjusting rod 24, during use, when the screen drum 8 rotates, the outer surface of the eccentric block 26 can contact the outer surface of the arc-shaped driving piece 14 at a position far from the rotation center, and then When the rotation continues, the contact point gradually moves toward the rotation center. At this time, the adjusting rod 24 and the eccentric block 26 push the knocking block 22 toward the upper end of the telescopic outer tube 17, thereby applying pressure to the first spring 21. When the eccentric block 26 is out of contact with the arc-shaped driving piece 14, the knocking block 22 is instantly released, so that one end of the telescopic inner rod 27 can be knocked, and larger particles can be knocked and crushed by the arc-shaped crushing piece 28. When screening, there is no need to pour larger particles into the crusher for crushing. The screening process can be directly crushed, thereby achieving the purpose of effectively improving the screening efficiency.

[0033] Example 2

[0034] The utility model provides a technical solution: the inner side wall of the center rod 6 is rotatably connected with an adjusting shaft 15, the outer surface of the adjusting shaft 15 is provided with a first bevel gear 16, one end of a rectangular sleeve 18 is provided with a second bevel gear 19, the outer surface of the second bevel gear 19 is transmission-connected with the outer surface of the first bevel gear 16, the outer surface of the center rod 6 is provided with a telescopic outer tube 17, the inner side wall of the telescopic outer tube 17 is rotatably connected with a rectangular sleeve 18, the inner side wall of the rectangular sleeve 18 is plugged with a rectangular limiting rod 20, the inner side wall of the telescopic outer tube 17 is slidably connected with a knocking block 22, and the knocking A first spring 21 is provided at one end of the block 22, and one end of the first spring 21 abuts against the outer surface of the first bevel gear 16. An adjusting rod 24 is rotatably connected to the inner side wall of the knocking block 22, and a fourth bevel gear 25 is provided at one end of the adjusting rod 24. A third bevel gear 23 is provided at one end of the rectangular limiting rod 20, and the outer surface of the third bevel gear 23 is transmission-connected with the outer surface of the fourth bevel gear 25. An eccentric block 26 is provided at one end of the adjusting rod 24, a dial 29 is provided on the outer surface of the screening device housing 1, and an adjusting handle 30 is provided at one end of the adjusting shaft 15.

[0035] In order to facilitate the adjustment of the impact force, as shown in the attached Figures 1 to 9 As shown, the present application adopts the following structure, through the arrangement of the adjusting shaft 15, the rectangular sleeve 18, the rectangular limiting rod 20, the adjusting rod 24, the eccentric block 26, the dial 29 and the adjusting handle 30, the waste denitration catalyst recovery material screening device has the effect of facilitating the adjustment of the knocking force of the arc-shaped crushing piece 28, through the matching arrangement of the adjusting shaft 15, the first bevel gear 16, the rectangular sleeve 18, the second bevel gear 19, the rectangular limiting rod 20, the third bevel gear 23, the adjusting rod 24 and the fourth bevel gear 25, during use, the adjusting rod 24 can be directly driven to rotate by rotating the adjusting handle 30, that is, the bracket rotates the adjusting shaft 15 through the adjusting handle 30, The rectangular sleeve 18 is driven to rotate through the transmission effect of the first bevel gear 16 and the second bevel gear 19, and the rectangular limiting rod 20 is driven to rotate. When the rectangular limiting rod 20 rotates, the adjustment rod 24 is driven to rotate through the transmission effect of the third bevel gear 23 and the fourth bevel gear 25, so as to adjust the rotation of the eccentric block 26. When the contact surface between the eccentric block 26 and the arc-shaped driving piece 14 moves from the short axis to the long axis, the stroke of the knocking block 22 can be increased, and the compression force of the first spring 21 is increased. Therefore, after the first spring 21 is released, the knocking force of the knocking block 22 on the end of the telescopic inner rod 27 can be effectively increased, thereby achieving the purpose of facilitating the adjustment of the knocking and crushing force.

[0036] Example 3

[0037] The utility model provides a technical solution: the outer surface of the screen cylinder 8 is provided with filter holes 10, the inner side wall of the screening device housing 1 is rotatably connected with a rotating shaft 11, the outer surface of the rotating shaft 11 is provided with a cleaning rod 12, a plurality of filter holes 10 are provided and are evenly distributed in a circular array, a plurality of cleaning rods 12 are provided and are evenly distributed in a circular array, and one end of the cleaning rod 12 is adapted to the inner side wall of the filter hole 10.

[0038] In order to facilitate cleaning of the filter hole 10 and prevent clogging, as shown in the attached Figures 1 to 9 As shown, the present application adopts the following structure. Through the arrangement of the rotating shaft 11 and the cleaning rod 12, the waste denitrification catalyst recovery material screening device has the effect of facilitating the cleaning of the inside of the filter hole 10. Through the coordinated arrangement of the cleaning rod 12 and the filter hole 10, the end of the cleaning rod 12 is inserted into the inside of the filter hole 10 during use. When the screen cylinder 8 rotates, the rotating shaft 11 is also driven to rotate under the meshing of the filter hole 10 and the cleaning rod 12, so that the filter holes 10 on the outer surface of the screen cylinder 8 can be comprehensively cleaned, thereby achieving the purpose of facilitating the cleaning of the filter holes 10 and preventing blockage.

[0039] 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. A waste denitration catalyst recovery material screening device, comprising a screening device housing, characterized in that: The lower surface of the screening device shell is provided with supporting legs, the right side of the upper surface of the screening device shell is provided with a feeding port, the lower surface of the screening device shell is provided with a feeding port, the left side of the screening device shell is provided with a driving motor, the inner side wall of the screening device shell is fixedly connected with a center rod, the outer surface of the center rod is rotatably connected with a screen cylinder through a bearing, the right side of the screen cylinder is provided with a screen feeding port, the outer surface of the screen cylinder is provided with filtering holes, the inner side wall of the screening device shell is rotatably connected with a rotating shaft, the outer surface of the rotating shaft is provided with a cleaning rod, the inner side wall of the screen cylinder is connected with a supporting frame An arc-shaped driving piece is provided, the inner side wall of the center rod is rotatably connected with an adjusting shaft, a telescopic outer tube is provided on the outer surface of the center rod, the inner side wall of the telescopic outer tube is rotatably connected with a rectangular sleeve, the inner side wall of the rectangular sleeve is inserted with a rectangular limiting rod, the inner side wall of the telescopic outer tube is slidably connected with a knocking block, the inner side wall of the knocking block is rotatably connected with an adjusting rod, an eccentric block is provided at one end of the adjusting rod, a telescopic inner rod is provided at one end of the telescopic outer tube, an arc-shaped crushing piece is provided at one end of the telescopic inner rod, a dial is provided on the outer surface of the outer shell of the screening device, and an adjusting handle is provided at one end of the adjusting shaft.

2. A waste denitration catalyst recovery material screening device according to claim 1, characterized in that: A plurality of filter holes are arranged and evenly distributed in a circular array, a plurality of cleaning rods are arranged and evenly distributed in a circular array, and one end of the cleaning rod is adapted to the inner wall of the filter hole.

3. A waste denitration catalyst recovery material screening device according to claim 1, characterized in that: A plurality of arc-shaped driving plates are arranged and evenly distributed in a ring array.

4. A waste denitration catalyst recovery material screening device according to claim 1, characterized in that: The outer surface of the adjusting shaft is provided with a first bevel gear, one end of the rectangular sleeve is provided with a second bevel gear, and the outer surface of the second bevel gear is transmission-connected with the outer surface of the first bevel gear.

5. The waste denitration catalyst recovery material screening device according to claim 1, characterized in that: A first spring is arranged at one end of the knocking block, and one end of the first spring abuts against the outer surface of the first bevel gear.

6. The waste denitration catalyst recovery material screening device according to claim 1, characterized in that: A fourth bevel gear is arranged at one end of the adjusting rod, a third bevel gear is arranged at one end of the rectangular limiting rod, and an outer surface of the third bevel gear is transmission-connected with an outer surface of the fourth bevel gear.

7. The waste denitration catalyst recovery material screening device according to claim 1, characterized in that: A second spring is arranged at one end of the telescopic inner rod, one end of the second spring abuts against the outer surface of the knocking block, and the elastic force of the second spring is slightly smaller than the elastic force of the first spring.

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