Denitration catalyst module hoisting equipment and hoisting method

Abstract

The invention provides denitration catalyst module lifting equipment and a lifting method.In the denitration catalyst module lifting equipment, a lifting appliance frame comprises two oppositely-arranged lifting appliance cross beams and two oppositely-arranged lifting appliance longitudinal beams, any lifting appliance cross beam is connected with the two lifting appliance longitudinal beams, and the lifting appliance cross beams are connected with the two lifting appliance longitudinal beams; a frame vertex angle is defined at the intersection of any one of the lifting appliance cross beams and the lifting appliance longitudinal beams; sub-lifting lugs are installed at the four frame top corners, any sub-lifting lug comprises a first lug plate, a second lug plate and a bottom plate, the first lug plate and the second lug plate are oppositely arranged, the bottom plate is connected between the first lug plate and the second lug plate, the bottom plate is rotatably installed on the side walls of the frame top corners, and a rotary damping mechanism and a lifting appliance center beam are further arranged between the bottom plate and the frame top corners. The lifting appliance center beam is installed between the two lifting appliance cross beams, and a main lifting lug is arranged on the lifting appliance center beam. According to the invention, the denitration catalyst module is smoothly mounted, the shaking amplitude of the denitration catalyst module in the hoisting process is reduced, and the hoisting safety is improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of denitration module hoisting, and relates to a denitration catalyst module hoisting device and a hoisting method. BACKGROUND

[0002] The selective catalytic reduction denitration technology is a technology in which a reducing agent such as ammonia is sprayed into flue gas under the action of a catalyst, so that nitrogen oxides are preferentially reacted with the reducing agent to generate harmless nitrogen and water; the technology has high denitration efficiency and is widely applied in fields such as thermal power and waste incineration which have strict emission requirements. The catalyst is generally installed in a denitration catalyst module when applied, and the denitration catalyst module is generally made of carbon steel or stainless steel. During installation of the catalyst, the denitration catalyst module needs to be hoisted.

[0003] At present, the denitration catalyst module is generally hoisted by using a soft sling or a steel structure lifting appliance. For the soft sling hoisting scheme, the module is prone to shaking and instability when hoisted by the soft sling, which poses a safety hazard. For the steel structure lifting appliance hoisting scheme, if the lifting lugs of the denitration catalyst module are deformed or have size deviation problems (for example, the lifting lugs of the denitration catalyst module that are repeatedly used are often deformed, and the positioning size of the lifting lugs of the denitration catalyst module deviates), the denitration catalyst module cannot be smoothly installed, and the denitration catalyst module also has a large shaking amplitude during hoisting, which also poses a safety risk. SUMMARY

[0004] The application provides a denitration catalyst module hoisting device and a hoisting method to solve the problems in the prior art, achieve smooth installation of the denitration catalyst module, reduce the shaking amplitude of the denitration catalyst module during hoisting, and improve the safety of hoisting.

[0005] The application provides a denitration catalyst module hoisting device, which comprises a lifting appliance frame, the lifting appliance frame comprises two oppositely arranged lifting appliance cross beams and two oppositely arranged lifting appliance longitudinal beams, any lifting appliance cross beam is connected with the two lifting appliance longitudinal beams, and any lifting appliance cross beam and the lifting appliance longitudinal beam define a frame top corner at the intersection; a lifting lug is arranged at each of the four frame top corners, any lifting lug comprises oppositely arranged first and second lug plates and a bottom plate connected between the first and second lug plates, the bottom plate is rotatably mounted on the side wall of the frame top corner, and a rotation damping mechanism is further arranged between the bottom plate and the frame top corner; and a lifting appliance center beam is arranged between the two lifting appliance cross beams, and a main lifting lug is arranged on the lifting appliance center beam.

[0006] Optionally, the denitration catalyst module hoisting device further comprises a rotating shaft, the rotating shaft is provided with a first mounting point and a second mounting point in the axial direction; the first mounting point is fastened and mounted on the bottom plate, the second mounting point is rotatably connected to the top corner of the frame, and the rotating damping mechanism is mounted on the top corner of the frame and in contact with the rotating shaft to increase the rotating resistance of the rotating shaft.

[0007] Optionally, the denitration catalyst module hoisting device further comprises a first elastic member arranged between the bottom plate and the side wall of the spreader beam at the top corner of the frame, the first elastic member is in a compressed state; the vertical direction between the bottom plate and the side wall of the spreader beam is consistent with the compression direction of the elastic member, and the vertical distance between the bottom plate and the side wall of the spreader beam is adjustable.

[0008] Optionally, the side wall of the spreader beam is provided with an adjusting hole in the length direction, a bearing unit movable along the length direction of the adjusting hole is embedded and mounted in the adjusting hole, a bearing is arranged in the bearing unit, and the rotating shaft is fixed in the inner ring of the bearing; the rotating damping mechanism is mounted on the bearing unit.

[0009] Optionally, the rotating damping mechanism comprises: a damping member mounted on the bearing unit, a damping cavity is formed in the damping member; a damping piece is mounted on the side wall of the rotating shaft, the rotating shaft extends into the damping cavity, and the outer edge of the damping piece is in contact with the damping cavity to provide rotating resistance.

[0010] Optionally, a second elastic member that can expand and contract in the radial direction of the rotating shaft is arranged between the damping piece and the side wall of the rotating shaft.

[0011] Optionally, a laser positioner is arranged on each of the four sub-lifting lugs, and the laser of the laser positioner is directed to the denitration catalyst module in the vertical direction.

[0012] Optionally, the two ends of the spreader center beam are connected to the spreader beam through a universal hinge mechanism; the universal hinge mechanism comprises a spherical hinge support mounted on the spreader beam and a spherical head pin mounted on the end of the spreader center beam, and the spherical head pin is rotatably arranged in the spherical hinge support.

[0013] Optionally, the spreader longitudinal beam and the spreader transverse beam are both hollow quadrangular prisms, at least two transverse partitions are sequentially arranged in the length direction of the hollow quadrangular prism, and the transverse partitions are provided with weight-reducing holes.

[0014] The application also provides a hoisting method of the denitration catalyst module, the denitration catalyst module is hoisted by the denitration catalyst module hoisting device, and the method comprises the following steps: assembling a lifting frame, preparing two oppositely arranged lifting beam and two oppositely arranged lifting longitudinal beams, connecting any one of the lifting beam with the two lifting longitudinal beams, and defining a frame top corner at the intersection of any one of the lifting beam and the lifting longitudinal beam; installing a lifting lug, installing a lifting lug at each of the four frame top corners, and arranging any one of the lifting lug to comprise a first lug plate and a second lug plate arranged oppositely, and a bottom plate connected between the first lug plate and the second lug plate, the bottom plate is rotatably installed on the side wall of the lifting frame, so that the lifting lug can be inclined relative to the vertical direction; installing a lifting center beam, installing a lifting center beam between the two lifting beams, and installing a lifting hook of a hoisting device on a main lug of the lifting center beam; installing a denitration catalyst module, installing a lug at four corners of the denitration catalyst module one by one and corresponding to the first lug plate and the second lug plate of the four lifting lugs, in the process, when the lug is inclined to the vertical direction, the inclination angle of the corresponding lifting lug is rotated to be consistent or approximately consistent with the inclination angle of the lug, so that the lug is arranged between the first lug plate and the second lug plate; hoisting the denitration catalyst module, and hoisting the denitration catalyst module by the hoisting device.

[0015] By adopting the technical scheme, the following beneficial effects are achieved: The denitration catalyst module hoisting device and the hoisting method provided by the application are characterized in that the lifting lugs which can be inclined along the vertical direction are installed at the four frame top corners of the quadrilateral lifting frame, so that when the lugs of the denitration catalyst module to be hoisted are inclined relative to the vertical direction, the inclination angle of the corresponding lifting lug is rotated to be consistent or approximately consistent (within a range of 5°) with the inclination angle of the lug, so that the lug is arranged between the first lug plate and the second lug plate, the denitration catalyst module is smoothly installed, the inclination of the lifting lug in the hoisting process is reduced by the rotation damping mechanism, the shaking amplitude of the denitration catalyst module in the hoisting process is reduced, and the safety of hoisting is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] The preferred embodiments of the application will be described in detail below with reference to the accompanying drawings, so as to help understand the purposes and advantages of the application, in which: Figure 1 The top view of the denitration catalyst module hoisting device provided by an optional embodiment of the application.

[0017] Figure 2 The side view of the denitration catalyst module hoisting device provided by an optional embodiment of the application.

[0018] Figure 3 This is a front view of the denitrification catalyst module lifting device provided in an optional embodiment of this application when lifting the denitrification module.

[0019] Figure 4 This is a front view of a split lug provided in an optional embodiment of this application.

[0020] Figure 5 A longitudinal sectional view of the split lugs provided for another optional embodiment of this application.

[0021] Figure 6 This is a flowchart of a lifting method for a denitrification catalyst module provided in an optional embodiment of this application.

[0022] Explanation of reference numerals in the attached figures: 1- Lifting frame, 10- Lifting beam, 11- Lifting longitudinal beam, 12- Frame top corner, 2- Lifting lug, 20- First lug plate, 21- Second lug plate, 22- Bottom plate, 23- Lifting hole, 24- Rotary shaft, 3- Lifting center beam, 30- Main lifting lug, 300-, 4- Denitrification catalyst module, 40- Lifting lug, 5- Pin shaft, 6- Limiting rope. Detailed Implementation

[0023] The technical solution of the present invention will be further described in detail below with reference to embodiments and accompanying drawings. The directional terms such as up, down, left, right, front, back, front, back, top, and bottom mentioned or possibly used in this specification are defined relative to the structures shown in the accompanying drawings. The terms "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively. These are relative concepts and may therefore vary depending on their location and usage. Therefore, these or other directional terms should not be interpreted as restrictive terms.

[0024] The denitrification catalyst lifting equipment provided in this application includes: a lifting frame 1, lifting lugs 2, and a lifting center beam 3.

[0025] like Figure 1 As shown, the lifting frame 1 includes two oppositely arranged lifting beams 10 and two oppositely arranged lifting longitudinal beams 11. Each of the lifting beams 10 is connected to the two lifting longitudinal beams 11. Each of the lifting beams 10 and the lifting longitudinal beams 11 defines a frame apex angle 12 at the intersection.

[0026] The lifting beam 10 and the lifting longitudinal beam 11 in the lifting frame 1 define the main structure of the lifting frame 1, and define four frame apex corners 12 at the intersection. The four frame apex corners 12 correspond to the lifting lugs 40 on the four apex corners of the denitrification catalyst module 4, so that the four lifting lugs 40 of the denitrification catalyst module 4 can be installed through the four sub-lifting lugs 2.

[0027] The frame top corner 12 includes the part at the intersection of the spreader cross beam 10 and the spreader longitudinal beam 11 and the part adjacent to the intersection.

[0028] The four frame top corners 12 are each provided with a sub-lifting lug 2, any of the sub-lifting lug 2 includes oppositely arranged first lug plate 20 and second lug plate 21, and bottom plate 22 connected between the first lug plate 20 and the second lug plate 21, the bottom plate 22 is rotatably mounted on the side wall of the frame top corner 12, and a rotation damping mechanism is further arranged between the bottom plate 22 and the frame top corner 12.

[0029] Figure 1 The sub-lifting lug 2 shown in the middle is mounted at the end of the spreader cross beam 10 of the frame top corner 12, which is an optional embodiment, and the sub-lifting lug 2 can also be mounted on the spreader longitudinal beam 11.

[0030] In an optional embodiment of the sub-lifting lug 2, lifting holes 23 are formed on the first lug plate 20 and the second lug plate 21, as shown in Figure 2 、 Figure 4 and Figure 5 The lifting holes 23 and the hanging holes on the lifting lug 40 of the denitration catalyst module 4 are aligned and installed by passing through the pin shaft 5 after the lifting lug 40 of the denitration catalyst module 4 is inserted between the first lug plate 20 and the second lug plate 21.

[0031] As shown in Figure 2 and Figure 3 The spreader center beam 3 is installed between the two spreader cross beams 10, and the main lifting lug 30 is arranged on the spreader center beam 3, and the hanging hole 300 can be arranged on the main lifting lug 30 of the spreader center beam 3, as shown in Figure 1 and Figure 2 The hanging hole 300 is connected with the hook of the lifting device, and the denitration catalyst module 4 is moved by the spreader frame 1 under the lifting action of the lifting device.

[0032] The denitration catalyst lifting equipment provided by the present application is characterized in that the sub-lifting lug 2 which can be inclined in the vertical direction is installed at the four frame top corners 12 of the quadrilateral spreader frame 1, so that when the lifting lug 40 of the denitration catalyst module 4 to be lifted is inclined relative to the vertical direction, the inclination angle of the corresponding sub-lifting lug 2 is rotated to be consistent or approximately consistent (within a difference of 5°) with the inclination angle of the lifting lug 40, so that the lifting lug 40 is passed into the first lug plate 20 and the second lug plate 21, and the denitration catalyst module 4 is smoothly installed, and the inclination amount of the sub-lifting lug 2 in the lifting process is reduced by the rotation damping mechanism, the shaking amplitude of the denitration catalyst module 4 in the lifting process is reduced, and the safety of lifting is improved.

[0033] In an alternative embodiment, the denitration catalyst lifting device further comprises a rotating shaft 24, which is provided with a first mounting point and a second mounting point in the axial direction; the first mounting point is fastened to the bottom plate 22, and the second mounting point is rotatably connected to the frame top corner 12; the rotating damping mechanism is mounted on the frame top corner 12 and in contact with the rotating shaft 24 to increase the rotating resistance of the rotating shaft 24. By rotating the second mounting point relative to the frame top corner 12, the inclination of the sub-lifting lug 2 along the vertical direction is adjusted, and the rotating damping mechanism reduces the swinging range of the sub-lifting lug 2 during lifting by increasing the rotating resistance of the second mounting point.

[0034] In the embodiment, the first mounting point of the rotating shaft 24 is provided with external threads, and a threaded hole is formed in the bottom plate 22 corresponding to the first mounting point; the first mounting point of the rotating shaft 24 is screwed to the bottom plate 22, and the second mounting point is rotatably connected to the mounting hole formed in the frame top corner 12; the rotating damping mechanism can be an outer shell fixed to the frame top corner 12 and a damping member such as rubber located in the outer shell; the rotating shaft 24 is in contact with the damping member and is subjected to the resistance generated by the damping member during rotation.

[0035] In an alternative embodiment, the denitration catalyst lifting device further comprises a first elastic member arranged between the bottom plate 22 and the side wall of the lifting beam 10 located at the frame top corner 12, and the first elastic member is in a compressed state; the vertical direction between the bottom plate 22 and the side wall of the lifting beam 10 coincides with the compression direction of the first elastic member, and the vertical distance between the bottom plate 22 and the side wall of the lifting beam 10 is adjustable. Figure 1 When the deformation of the lifting lug 40 of the denitration catalyst module 4 is large, and the lifting lug 40 cannot be installed into the sub-lifting lug 2 by only rotating the sub-lifting lug 2 to be inclined relative to the vertical direction, the position of the sub-lifting lug 2 can be adjusted along the longitudinal direction to adapt the lifting position of the sub-lifting lug 2 to the large deformation of the lifting lug 40 along the longitudinal direction. Figure 1 Figure 1 The first elastic member can play a role of stable support for the sub-lifting lug 2 during the adjustment of the position of the sub-lifting lug 2 by means of the lifting beam frame 1, thereby improving the stability of the sub-lifting lug 2.

[0036] The first elastic member can be a spring or an elastic component such as rubber.

[0037] In an alternative embodiment, the side wall of the lifting beam 10 is provided with a longitudinal direction along the length of the lifting beam 10. Figure 1 ​The adjusting hole is embedded with a bearing unit which can move along the length direction of the adjusting hole, the bearing unit is provided with a bearing, and the rotating shaft 24 is fixed in the inner ring of the bearing; the rotating damping mechanism is installed on the bearing unit. The embodiment of the present application can realize the position adjustment of the split lifting lug 2 along the length direction of the sling beam 10, so that the lifting position of the split lifting lug 2 is adapted to the Figure 1 The split lifting lug 2 is adapted to the lifting lug 40 with large transverse deformation.

[0038] In an optional embodiment, a rack can be installed on the upper and lower sidewalls of the adjusting hole, a gear wheel is installed on the bearing unit and engaged with the rack, the gear wheel is driven by a motor installed on the bearing unit, and the position adjustment of the bearing unit on the adjusting hole is realized by the rotating movement of the gear wheel along the rack.

[0039] In an optional embodiment, the rotating damping mechanism comprises a damping piece installed on the bearing unit, the damping piece is provided with a damping cavity, a damping piece is installed on the sidewall of the rotating shaft 24, the rotating shaft 24 extends into the damping cavity, and the outer edge of the damping piece is in contact with the damping cavity to provide a rotating resistance. The damping piece and the damping cavity cooperate to provide a stable rotating resistance for the rotating shaft 24. The damping piece can be a polytetrafluoroethylene damping piece, which has a self-lubricating property and can maintain good performance after multiple rotations.

[0040] In an optional embodiment, a second elastic piece which can expand and contract along the radial direction of the rotating shaft 24 is arranged between the damping piece and the sidewall of the rotating shaft 24. The second elastic piece keeps the damping piece and the damping cavity in an elastic compensation state, so that the damping piece and the damping cavity can always maintain good contact and maintain stable damping effect.

[0041] The second spring in the embodiment of the present application can be a structure with elasticity such as rubber and silicone, one end of which is sleeved on the rotating shaft 24, and the other end is integrally formed with the damping piece; the second elastic piece can also be a wave spring installed between the rotating shaft 24 and the damping piece.

[0042] In an optional embodiment, a laser positioner is arranged on each of the four split lifting lugs 2, and the laser of the laser positioner is directed to the denitration catalyst module 4 along the vertical direction. During the initial installation, the four laser positioners respectively emit vertical laser to the denitration catalyst module 4, so that the workers can quickly identify the position difference between the split lifting lug 2 and the lifting lug 40, which is convenient for subsequent adjustment and improves the lifting efficiency.

[0043] In an alternative embodiment, the two ends of the spreader center beam 3 are connected to the spreader cross beam 10 through a universal hinge mechanism; the universal hinge mechanism comprises a spherical hinge support installed on the spreader cross beam 10 and a spherical pin installed at the end of the spreader center beam 3, which is rotatably arranged in the spherical cavity of the spherical hinge support. The universal hinge mechanism allows the spreader center beam 3 to adaptively adjust the angle during lifting, avoiding excessive local stress caused by the deformation of the denitration catalyst module 4.

[0044] In an alternative embodiment, the spreader longitudinal beam 11 and the spreader cross beam 10 are both hollow quadrangular prisms, and at least two transverse partitions are sequentially arranged along the length direction of the hollow quadrangular prism, and the transverse partitions are provided with weight-reducing holes. Under the same weight, the structural strength of the hollow quadrangular prism is obviously superior to that of the I-beam, the transverse partitions can effectively increase the bending resistance of the spreader longitudinal beam 11 and the spreader cross beam 10, and the weight-reducing holes are beneficial to further save materials and reduce the weight of the spreader longitudinal beam 11 and the spreader cross beam 10.

[0045] Further, a limiting rope 6 can be detachably connected between the split lifting lug 20 and the spreader cross beam 10. During lifting, when the split lifting lug 20 rotates beyond a certain angle (such as more than 30°), the limiting rope 6 is tensioned to limit the split lifting lug 20, preventing instability caused by excessive rotation angle of the split lifting lug 20.

[0046] The application also provides a lifting method of a denitration catalyst module, which lifts the denitration module by using the denitration catalyst lifting device according to any one of the above embodiments, and comprises the following steps.

[0047] S1: Assemble the spreader frame 1, prepare two oppositely arranged spreader cross beams 10 and two oppositely arranged spreader longitudinal beams 11, so that any one of the spreader cross beams 10 is connected to the two spreader longitudinal beams 11, and any one of the spreader cross beams 10 and the spreader longitudinal beams 11 defines a frame top corner 12 at the intersection.

[0048] S2: Install the split lifting lug 2 at the four frame top corners 12, and arrange any one of the split lifting lug 2 to comprise a first ear plate 20 and a second ear plate 21 arranged oppositely, and a bottom plate 22 connected between the first ear plate 20 and the second ear plate 21, wherein the bottom plate 22 is rotatably installed on the side wall of the spreader frame 1, so that the split lifting lug 2 can be inclined relative to the vertical direction.

[0049] S3: Install the spreader center beam 3 between the two spreader cross beams 10, and install the lifting hook of the lifting device on the main lifting lug 30 of the spreader center beam 3.

[0050] S4: install the denitration catalyst module, install the lifting lug 40 at the four top corners of the denitration catalyst module one by one in the first ear plate 20 and the second ear plate 21 of the four sub-lifting lug 2 respectively, in the process, when the lifting lug 40 is inclined to the vertical direction, the inclination angle of the corresponding sub-lifting lug 2 is rotated to be consistent or approximately consistent with the inclination angle of the lifting lug 40, so that the lifting lug 40 is arranged between the first ear plate 20 and the second ear plate 21.

[0051] S5: hoist the denitration catalyst module, hoist the denitration catalyst module by the lifting device.

[0052] The lifting method of the denitration catalyst module provided in the application is characterized in that the sub-lifting lug 2 that can be inclined in the vertical direction is arranged at the four frame top corners 12 of the quadrilateral lifting frame 1, so that when the lifting lug 40 of the denitration catalyst module 4 to be hoisted is inclined relative to the vertical direction, the inclination angle of the corresponding sub-lifting lug 2 is rotated to be consistent or approximately consistent (within a difference of 5°) with the inclination angle of the lifting lug 40, so that the lifting lug 40 is arranged between the first ear plate 20 and the second ear plate 21, the denitration catalyst module 4 is smoothly installed, the inclination amount of the sub-lifting lug 2 in the hoisting process is reduced by the rotation damping mechanism, the shaking amplitude of the denitration catalyst module 4 in the hoisting process is reduced, and the safety of hoisting is improved.

[0053] Finally, it should be noted that: the above examples are only used to illustrate the technical solutions of the application, and not to limit them; although the application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing examples, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the application.

Claims

1. A lifting device for denitrification catalyst modules, characterized in that, The lifting device comprises: a lifting frame comprising two oppositely arranged lifting beam and two oppositely arranged lifting longitudinal beams, any of the lifting beam is connected with two lifting longitudinal beams, any of the lifting beam and the lifting longitudinal beam defines a frame top corner at the intersection; a lifting lug is installed at four frame top corners, any of the lifting lug comprises oppositely arranged first lug plate and second lug plate, and bottom plate connected between the first lug plate and the second lug plate, the bottom plate is rotatably installed on the side wall of the frame top corner, and the rotating damping mechanism is further arranged between the bottom plate and the frame top corner; a lifting center beam is installed between two lifting beams, and a main lifting lug is arranged on the lifting center beam.

2. The de-NOx catalyst module hoisting apparatus according to claim 1, wherein The denitration catalyst module lifting device further comprises a rotating shaft, the rotating shaft is provided with a first mounting point and a second mounting point in the axial direction; the first mounting point is tightly installed on the bottom plate, the second mounting point is rotatably connected to the frame top corner, and the rotating damping mechanism is installed on the frame top corner and in contact with the rotating shaft to increase the rotating resistance of the rotating shaft.

3. The de-NOx catalyst module hoisting apparatus according to claim 2, characterized by The denitration catalyst module lifting device further comprises a first elastic member arranged between the bottom plate and the side wall of the lifting beam at the frame top corner, and the first elastic member is in a compressed state. The vertical direction between the bottom plate and the side wall of the lifting beam is consistent with the compression direction of the elastic member, and the vertical distance between the bottom plate and the side wall of the lifting beam is adjustable.

4. The de-NOx catalyst module hoisting apparatus according to claim 3, characterized by The side wall of the lifting beam is provided with an adjusting hole in the length direction, a bearing unit movable along the length direction of the adjusting hole is embedded and installed in the adjusting hole, a bearing is arranged in the bearing unit, and the rotating shaft is fixed in the inner ring of the bearing. The rotating damping mechanism is installed on the bearing unit.

5. The de-NOx catalyst module hoisting apparatus according to claim 4, characterized by The rotating damping mechanism comprises: a damping member installed on the bearing unit, and a damping cavity is formed in the damping member; a damping sheet is installed on the side wall of the rotating shaft, the rotating shaft extends into the damping cavity, and the outer edge of the damping sheet is in contact with the damping cavity to provide rotating resistance.

6. The de-NOx catalyst module hoisting apparatus according to claim 5, wherein A second elastic member is arranged between the damping sheet and the side wall of the rotating shaft and is stretchable in the radial direction of the rotating shaft.

7. The de-NOx catalyst module hoisting apparatus according to claim 4, wherein A laser positioner is arranged on each of the four lifting lugs, and the laser of the laser positioner is directed to the denitration catalyst module in the vertical direction.

8. The de-NOx catalyst module hoisting apparatus according to claim 5, wherein The two ends of the lifting center beam are connected with the lifting beam through a universal hinge mechanism. The universal hinge mechanism comprises a spherical hinge support installed on the lifting beam and a spherical head pin installed on the end of the lifting center beam, and the spherical head pin is rotatably arranged in the spherical hinge support.

9. The de-NOx catalyst module hoisting apparatus according to any one of claims 1 to 8, characterized by, The lifting longitudinal beam and the lifting beam are both hollow quadrangular prism structures, and at least two transverse partitions are sequentially arranged in the length direction of the hollow quadrangular prism, and the transverse partitions are provided with weight reduction holes.

10. A method of hoisting a denitration catalyst module, characterized by, The denitration catalyst module lifting device according to any one of claims 1-9 is used to lift the denitration module, comprising the following steps: Assembling a lifting tool frame, preparing two oppositely arranged lifting tool crossbeams and two oppositely arranged lifting tool longitudinal beams, so that any of the lifting tool crossbeams is connected with the two lifting tool longitudinal beams, and any of the lifting tool crossbeams and the lifting tool longitudinal beams define a frame top corner at the intersection; Installing a lifting tool sub-eye, installing a lifting tool sub-eye at each of the four frame top corners, and arranging any of the lifting tool sub-eyes to include oppositely arranged first and second ear plates and a bottom plate connected between the first and second ear plates, and the bottom plate is rotatably installed on the side wall of the lifting tool frame, so that the lifting tool sub-eye can be inclined relative to the vertical direction; Installing a lifting tool center beam, installing a lifting tool center beam between the two lifting tool crossbeams, and installing a lifting hook of a lifting device on a main eye of the lifting tool center beam; Installing a denitration catalyst module, installing a lifting tool sub-eye at each of the four top corners of the denitration catalyst module, and one-to-one corresponding the lifting tool sub-eye to the first and second ear plates of the lifting tool sub-eye, and in the process, when the lifting tool sub-eye is inclined to the vertical direction, the inclination angle of the corresponding lifting tool sub-eye is rotated to be consistent or approximately consistent with the inclination angle of the lifting tool sub-eye, so that the lifting tool sub-eye is inserted into the first and second ear plates; Lifting the denitration catalyst module, lifting the denitration catalyst module by the lifting device.

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