A winch fixing device for disassembling and assembling an SCR catalyst module

Abstract

The present invention provides a winch fixing device for disassembling and assembling an SCR catalyst module, which has a simple structure, is easy to install, has good safety and stability, and is suitable for use in the changeable ground environment of a power plant; the winch fixing device is fixed on a column base and connected to a winch seat on which the winch is assembled, the column base and the winch seat are arranged opposite to each other, and comprises a fixing plate, the side walls of the column base are all equipped with the fixing plates, the adjacent fixing plates are fixedly connected, one of the fixing plates located in the installation direction of the winch is fixed with a bracket platform at both ends, the bracket platforms at both ends are equipped with bracket seats, a first adjusting slide is provided on the bracket seat, a connecting plate is connected between the bracket seat and the winch seat, one end of the connecting plate is adjusted and fixed in the first adjusting slide, and the other end of the connecting plate is fixed to the side wall of the winch seat.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical fixing structures, in particular to a winch fixing device for disassembling and assembling an SCR catalyst module. Background Art

[0002] With the promotion of the ultra-low emission transformation policy of coal-fired power plants and the popularization of SCR flue gas denitrification technology, the application of SCR catalysts in power plants has become increasingly common. In recent years, the generation of waste flue gas denitrification catalysts as solid waste has been increasing year by year, and regeneration or scrapping is the main disposal method, which involves the disassembly and assembly of catalyst modules. At present, winches are often used to disassemble and assemble catalyst modules. As a kind of lifting machinery, winches are widely used in power plants with compact equipment layout. However, when the catalyst module weighing 1 to 1.5 tons rises or falls 40 to 60 meters, the winch will have the characteristics of variable force directions at different positions. If it is not fixed well, it is easy to overturn, resulting in a safety hazard of insufficient stability and even injuring the operator. For this reason, the existing fixing devices, such as Chinese patent document CN205916935U, disclose a method of using a special support for a winch. A frame fixing device is provided, a counterweight mounting support is provided at one end of the special bracket, and the counterweight block is fixed by plugging, and a wire rope ground anchor is provided at the other end, and then the special bracket is fixed by the two to fix the winch. Although the winch can be fixed by the counterweight block and the ground anchor, the ground anchor is not suitable for the hardened ground of the power plant, and the ground anchor and the winch are not hard connected. The stability of the lifting process of 40 to 60 meters is still insufficient, and the counterweight block is not practical for modules of about 1 to 1.5 tons; for example, Chinese patent document CN211226125U discloses a winch stabilizing device, which winch is detachably connected to the bracket, the bracket and the frame are fixedly connected, the frame and the upper part of the stabilizing device are detachably connected, the stabilizing device is hollow inside, and the lower part is fixedly connected to the ground, so as to achieve a stable winch, but the stabilizing device is fixedly connected to the ground, which is not suitable for application in the changeable ground environment of the power plant.

[0003] In summary, the currently disclosed technical solutions for solving the problem of the winch fixing device for disassembly and assembly of the SCR catalyst module are not good in terms of stability and safety, and their applicability to the power plant environment is poor, and further improvement is needed. It is necessary to design a winch fixing device that is safe, reliable and easy to install, so as to improve the safety and efficiency of the disassembly and assembly work. Summary of the invention

[0004] In view of the above problems, the present invention provides a winch fixing device for disassembling and assembling an SCR catalyst module, which has a simple structure, is easy to install, has good safety and stability, and can be suitable for application in the variable ground environment of a power plant.

[0005] The technical solution is as follows: a winch fixing device for disassembling and assembling an SCR catalyst module, which is fixed on a column base and connected to a winch seat on which the winch is assembled, the column base and the winch seat being arranged opposite to each other, and characterized in that it includes a fixing plate, the side walls of the column base are all equipped with the fixing plates, adjacent fixing plates are fixedly connected, support platforms are fixed at both ends of one of the fixing plates located in the installation direction of the winch, support stands are installed on the support stands at both ends, a first adjusting slide is provided on the support stand, a connecting plate is connected between the support stand and the winch seat, one end of the connecting plate is adjusted and fixed in the first adjusting slide, and the other end of the connecting plate is fixed to the side wall of the winch seat.

[0006] Preferably, the fixing plate is L-shaped, and there are four fixing plates, which are respectively attached to the side wall surfaces of the column base in a clockwise direction, and adjacent fixing plates are fixedly connected;

[0007] Preferably, the fixing plate comprises a long side and a short side, the long side is provided with a second adjustment slide, the short side is provided with a screw hole, and the long side of the fixing plate on one side and the short side of the fixing plate on the adjacent side are adjusted and fixedly connected by the second adjustment slide, the screw hole and the bolt;

[0008] Preferably, the length of the long side portion is greater than the length of the column base, and the width of the fixing plate is not less than 100 mm;

[0009] Preferably, the first adjustment slides are provided with two, and are arranged one above the other on the support stand;

[0010] Preferably, the connecting plate is divided into a first connecting plate and a second connecting plate, one end of the first connecting plate and the second connecting plate are respectively adjusted and fixed in two first adjusting slideways arranged above and below, and the other ends of the first connecting plate and the second connecting plate are respectively connected to the side wall surface of the winch seat on the corresponding side;

[0011] Preferably, the length of the first connecting plate is greater than the length of the second connecting plate;

[0012] Preferably, the other ends of the first connecting plate and the second connecting plate are respectively installed on the hoisting machine seat in a downward tilted direction toward the hoisting machine seat, so that a triangular structure is formed between the bracket stand and the first connecting plate and the second connecting plate;

[0013] Preferably, the inclination of the first connecting plate and the second connecting plate is no greater than 45°;

[0014] Preferably, the installation height of the support stand is higher than the installation height of the winch seat.

[0015] The beneficial effects of the present invention are that it has a simple structure, and a fixing plate is installed on the column base so that the entire fixing device reaches a stable state, can withstand forces in various directions, and constitutes a stable foundation. Subsequently, the first adjusting slide and the connecting plate are adjusted and fixed between the winch seat and the bracket seat to form an overall fixing device, which can further withstand forces in various directions, and the force is stable, so as to achieve the purpose of safe disassembly and assembly, and can perform adaptive position adjustment according to actual conditions, has high reliability, and is easy to operate, and can be applicable to the changeable ground environment of the power plant, thereby being beneficial to improving the disassembly and assembly efficiency of the SCR catalyst module, and having good economic use value. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the top view of the structure of the present invention;

[0017] Figure 2 is a side view of the fixing plate of the present invention;

[0018] Figure 3 It is a structural schematic diagram of the support stand in the present invention;

[0019] Figure 4 It is a schematic diagram of the assembly connection between the bracket stand and the winch seat. DETAILED DESCRIPTION

[0020] like Figure 1 to Figure 4 As shown, the present invention provides a winch fixing device for disassembling and assembling an SCR catalyst module, which is fixed on a column base 1 and connected to a winch seat 2 on which a winch (not shown in the figure) is assembled. The column base 1 and the winch seat 2 are arranged opposite to each other, and include a fixing plate 3. The side walls of the column base 1 are all equipped with fixing plates 3, and adjacent fixing plates 3 are fixedly connected. Support platforms 4 are fixed at both ends of one of the fixing plates 3 located in the installation direction of the winch, and support stands 5 are installed on the support platforms 4 at both ends. The support stands 5 are provided with a first adjusting slide 6, and a connecting plate is connected between the support stand 5 and the winch seat 2, one end of the connecting plate is adjusted and fixed in the first adjusting slide 6, and the other end of the connecting plate is fixed to the side wall of the winch seat 2.

[0021] The fixing plate 3 is L-shaped, and there are 4 fixing plates 3, which are respectively attached to the side wall surfaces of the column base 1 in a clockwise direction. The adjacent fixing plates 3 are fixedly connected. After the 4 L-shaped fixing plates 3 are tightened, the winch fixing device can first reach a stable state, and can withstand forces in all directions to form a stable foundation; the fixing plate 3 includes a long side 7 and a short side 8, and the long side 7 is provided with a second adjustment slide 9, and the short side 8 is provided with a screw hole (not shown in the figure). The long side 7 of the fixing plate 3 on one side is adjusted and fixedly connected with the short side 8 of the fixing plate 3 on the adjacent side through the second adjustment slide 9, screw holes, and bolts 12; the length of the long side 7 is greater than the length of the column base 1, and the width of the fixing plate 3 is not less than 100mm.

[0022] There are two first adjustment slides 6, which are arranged up and down on the bracket seat 5; the connecting plate is divided into a first connecting plate 10 and a second connecting plate 11, and one end of the first connecting plate 10 and the second connecting plate 11 are respectively adjusted and fixed in the two first adjustment slides 6 arranged up and down, and the other ends of the first connecting plate 10 and the second connecting plate 11 are respectively connected to the side wall surface of the winch seat 2 on the corresponding side.

[0023] The length of the first connecting plate 10 is greater than that of the second connecting plate 11; the other ends of the first connecting plate 10 and the second connecting plate 11 are respectively installed on the winch seat 2 at a downward tilt toward the winch seat 2, the inclination of the first connecting plate 10 is 10°, and the inclination of the second connecting plate 11 is 35°, and wherein, the connection position of one end of the second connecting plate 11 in the first adjusting slide 6 below is as low as possible, so that a triangular structure is formed between the bracket stand 5 and the first connecting plate 10 and the second connecting plate 11, thereby improving the structural stability effect; the installation height of the bracket stand 5 is higher than the installation height of the winch seat 2, thereby further improving the stability.

[0024] In the present invention, the winch is fixed by the first connecting plate 10, the second connecting plate 11, the bracket seat 5 and the fixing plate 3, and the winch is subjected to forces in all directions to form an integral fixing device; specifically, before work, within the scope of the working space, a suitable column base 1 is selected, and four L-shaped fixing plates 3 are fixed, and a fixing plate 3 with a bracket platform 4 is facing the installation direction of the winch. After tightening the bracket seat 5, the first connecting plate 10 and the second connecting plate 11 are respectively connected to the upper and lower first adjustment slideways 6 of the bracket seat 5, and the first loosening is performed. Connect, do not tighten, and then use bolts and nuts to connect the first connecting plate 10 and the second connecting plate 11 to the winch seat 2 respectively, and according to the actual situation, adjust the position of the first adjusting slide 6 and then tighten; then when the winch is working, the assembled fixing device transmits the force of the winch seat 2 to the column base 1, and the force is stable, which can better achieve the purpose of safe disassembly and assembly; and during on-site construction, due to the limitations of on-site conditions, welding technology can also be used to replace the bolt-nut connection, but the overall frame does not change, and the fixing effect can also be achieved.

[0025] In addition, the structure of the present invention is applied to the disassembly and assembly of SCR catalyst modules, that is, it is used for the disassembly and assembly of SCR catalyst modules of a 300MW coal-fired power generation unit, and the modules are inserted after the winch is connected to the winch seat 2. The catalyst modules weigh 1258kg each, and the lifting height is 42 to 44 meters. Therefore, in the disassembly and assembly process for 8 consecutive days, a total of 280 catalyst modules are disassembled and assembled. During the whole process, the winch is well fixed and does not move. After the disassembly and assembly is completed, the fixing device is removed without causing any impact or damage to the site. In summary, the winch fixing device for disassembly and assembly of the SCR catalyst module of the present invention has good safety and reliability, is easy to fix and install in the complex and compact environment of the power plant, and is conducive to improving the efficiency of module disassembly and assembly.

[0026] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0027] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A winch fixing device for disassembling and assembling an SCR catalyst module, which is fixed on a column base and connected to a winch seat for assembling a winch, wherein the column base and the winch seat are arranged opposite to each other, and is characterized in that: It includes a fixing plate, the side walls of the column base are all equipped with the fixing plates, the adjacent fixing plates are fixedly connected, one of the fixing plates located in the installation direction of the winch is fixed with a bracket platform at both ends, the bracket platforms at both ends are equipped with a bracket stand, the bracket stand is provided with a first adjustment slide, a connecting plate is connected between the bracket stand and the winch seat, one end of the connecting plate is adjusted and fixed in the first adjustment slide, and the other end of the connecting plate is fixed to the side wall of the winch seat; the fixing plate is L-shaped, the fixing plate is provided with 4 pieces, and they are respectively attached to the side walls of the column base in a clockwise direction, and the adjacent fixing plates are fixedly connected. The fixing plate comprises a long side and a short side, the long side is provided with a second adjusting slide, the short side is provided with a screw hole, the long side of the fixing plate on one side and the short side of the fixing plate on the adjacent side are adjusted and fixedly connected by the cooperation of the second adjusting slide, the screw hole and the bolt; there are two first adjusting slides, which are arranged up and down on the bracket stand; the connecting plate is divided into a first connecting plate and a second connecting plate, one end of the first connecting plate and the second connecting plate are respectively adjusted and fixed in the two first adjusting slides arranged up and down, and the other ends of the first connecting plate and the second connecting plate are respectively connected to the side wall surfaces of the winch seat on the corresponding sides.

2. A winch fixing device for disassembling and assembling an SCR catalyst module according to claim 1, characterized in that: The length of the long side portion is greater than the length of the column base, and the width of the fixing plate is not less than 100 mm.

3. The winch fixing device for disassembling and assembling an SCR catalyst module according to claim 1, characterized in that: The length of the first connecting plate is greater than the length of the second connecting plate.

4. The winch fixing device for disassembling and assembling an SCR catalyst module according to claim 1, characterized in that: The other ends of the first connecting plate and the second connecting plate are respectively installed on the hoisting machine seat in a downward tilted direction toward the hoisting machine seat, so that a triangular structure is formed between the bracket stand and the first connecting plate and the second connecting plate.

5. A winch fixing device for disassembling and assembling an SCR catalyst module according to claim 4, characterized in that: The inclination of the first connecting plate and the second connecting plate is no greater than 45°.

6. The winch fixing device for disassembling and assembling an SCR catalyst module according to claim 1, characterized in that: The installation height of the support stand is higher than the installation height of the winch seat.

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