Large reactor inner wall cleaning equipment

Abstract

The present invention relates to the field of reactor cleaning technology, in particular to a large reactor inner wall cleaning device, comprising a lift, a balance beam fixedly mounted on the top of the lift, a telescopic positioning mechanism mounted on the front end of the balance beam, a height positioning mechanism mounted on the front end of the telescopic positioning mechanism, a multi-effect cleaning device in the reactor mounted on the bottom of the height positioning mechanism, and the height positioning mechanism cooperates with the lift to control the working height of the multi-effect cleaning device in the reactor. The large reactor inner wall cleaning device can effectively clean the inner wall of the reactor of a large reactor, can achieve height lifting and lowering as needed, can effectively ensure the cleaning effect during the cleaning process, and at the same time, the operation of the entire device can be controlled by manual remote control during the cleaning process, which is safer during operation and effectively avoids the problem of manual high-altitude maintenance.

Description

Technical Field

[0001] The invention relates to the technical field of reactor cleaning, and in particular to a maintenance device capable of efficiently processing the interior of a large open-cover reactor, in particular to a device for cleaning the inner wall of a large reactor. Background Art

[0002] The reactor is a comprehensive reaction vessel for physical or chemical reactions. It can realize the heating mixing, hydrolysis, neutralization, distillation, evaporation, crystallization, storage, hydrogenation, polymerization, constant temperature reaction, cooling, and low and high speed mixing functions required by the process. It is usually composed of a reactor body, a reactor cover, heat transfer, rotation, stirring and sealing parts.

[0003] For production workshops that require a large single reaction volume, large open-top high-pressure reactors are usually used as the main reaction vessels. They are relatively large in size and generally several meters or higher in height. At present, the maintenance and repair of large reactors is the key difficulty of maintenance work in workshops. Because of their large size and high height, the traditional method of using manual entry to clean and maintain is not applicable, and the speed and efficiency of manual processing cannot meet the specified requirements. At the same time, there are also great safety hazards for workers.

[0004] In the prior art, some automated or semi-automated cleaning structures for cleaning and clearing the above-mentioned reactors have gradually emerged to be used in conjunction with the reactor structure. For example, the patent document with patent application number CN202221802795.4 discloses a cleaning device for a reactor for sealing material production, the main structure of which includes a main body and a cleaning component for cleaning the inner wall of the main body, the cleaning component includes a motor arranged at the top of the main body, a screw arranged on one side of the motor, two rotating rings sleeved on the outside of the screw, a driving ring sleeved on the outside of the rotating ring, a connecting frame arranged on the outside of the driving ring, an elastic frame arranged on one side of the connecting frame, a plurality of fixed plates evenly arranged on one side of the elastic frame, a cleaning brush arranged on one side of the fixed plate, and a spraying component for spraying water on the inner wall of the main body, the screw passes through the rotating ring and is screwed thereto, the rotating ring is rotatably connected to the driving ring, and the cross-section of the rotating ring is H-shaped.

[0005] From the above, it can be seen that the reactor in the prior art mainly adds a cleaning part, which mainly uses a spraying component to spray water on the inside of the reactor to achieve the purpose of cleaning. However, this cleaning method can only clean some easy-to-fall-off materials adhered to the inner wall. However, during the long-term use of large reactors, not only are there attached materials on the inner wall, but also when cleaning materials with high viscosity under high temperature, the inner wall of the reactor will also be firmly adhered to paste and coke. At the same time, for some carbon steel reactors, the inner wall will also have corroded and rusted parts. Therefore, simply relying on simple cleaning cannot effectively solve the cleaning of the inner wall of large reactors, and the cleaning effect is poor.

[0006] Therefore, the present invention studies the problem that it is difficult to clean the inner wall of a large reactor and the cleaning effect is poor. Hereby, a new device is proposed which can achieve multi-effect cleaning and rapid cleaning of the inner wall of a large reactor, so as to better solve the problems existing in the prior art. Summary of the invention

[0007] The present invention solves one of the above technical problems, and the technical solution adopted is: a large reactor inner wall cleaning device, wherein the working end of the large reactor inner wall cleaning device is placed inside the current large reactor body to be cleaned when working, and the reactor cover on the top of the reactor to be cleaned needs to be hoisted and removed before cleaning, and the large reactor inner wall cleaning device includes a lift, a balance beam is fixedly installed on the top of the lift, a telescopic positioning control mechanism is installed at the front end of the balance beam, and a height positioning control mechanism is installed at the front end of the telescopic positioning control mechanism, and a multi-effect cleaning device in the reactor is installed at the bottom of the height positioning control mechanism, and the height positioning control mechanism cooperates with the lift to realize the control of the working height of the multi-effect cleaning device in the reactor, and the multi-effect cleaning device in the reactor is used to extend into the current large reactor body and clean and repair the rust spots and materials adhered to its inner wall when working.

[0008] In any of the above schemes, preferably, a balancing weight unit is fixedly installed at the rear end of the balancing beam, and the balancing weight unit is used to ensure the stability of the entire device and reduce the probability of the device tilting.

[0009] In any of the above schemes, it is preferred that the telescopic positioning control mechanism includes two horizontal telescopic cylinders arranged in parallel and spaced apart, the rear ends of the cylinder barrels of the two horizontal telescopic cylinders are fixedly mounted on the front end of the balance beam, and the front ends of the piston rods of the two horizontal telescopic cylinders are fixedly connected to the height positioning control mechanism.

[0010] In any of the above schemes, it is preferred that the height control mechanism includes a mounting seat, the front ends of the piston rods of the two horizontal telescopic cylinders of the telescopic control mechanism are fixedly connected to the mounting seat, and two multi-stage lifting cylinders are fixedly installed on the front side wall of the mounting seat, and the bottoms of the piston rods of the two multi-stage lifting cylinders are fixedly installed on the top of the multi-effect cleaning device in the kettle.

[0011] In any of the above schemes, it is preferred that the multi-effect cleaning device in the kettle comprises a lifting workbench fixedly mounted at the bottom of the piston rods of the two multi-stage lifting cylinders, a rotary position control motor is fixedly mounted at the bottom of the lifting workbench, a rotating disk is fixedly mounted on the motor shaft of the rotary position control motor, and four radial adjusters are evenly spaced and mounted on the circumferential side walls of the rotating disk;

[0012] The length of each radial regulator in the radial direction of the current large reactor body can be adjusted. A first cleaning and protection mechanism is installed at the outer ends of two relatively arranged radial regulators, and a second cleaning and protection mechanism is installed at the outer ends of the other two relatively arranged radial regulators.

[0013] In any of the above solutions, preferably, the spacing angles between the four radial adjusters are all 90°.

[0014] In any of the above schemes, preferably, the radial adjuster comprises a radial adjustment cylinder fixedly mounted on the outer side wall of the rotating disk, the piston rod of the radial adjustment cylinder adopts a double-rod structure extending in the same direction, the outer ends of the two piston rods of the radial adjustment cylinder are fixedly connected to a vertical mounting frame, a folding positioner is movably hinged at the bottom of the vertical mounting frame, and the first cleaning protection mechanism or the second cleaning protection mechanism is installed at the corresponding position of the folding positioner;

[0015] The folding and adjusting device is used to drive the first cleaning and protection mechanism or the second cleaning and protection mechanism at the corresponding position to flip inwards and realize its own rotation adjustment.

[0016] In any of the above schemes, it is preferred that the lift adopts a scissors-type lift structure.

[0017] In any of the above schemes, preferably, the first cleaning and protection mechanism is used to achieve effective scraping and spraying protection of rust spots and adhered paste on the inner wall of the reactor body;

[0018] The second cleaning and protection mechanism is used to remove the residual material remaining on the inner wall of the reactor body after the material is scraped by the first cleaning and protection mechanism and to air-dry the inner wall of the reactor body after spraying.

[0019] In any of the above schemes, preferably, the folding and adjusting device includes a horizontal fixing frame fixedly mounted on the bottom side wall of the vertical mounting frame, a U-shaped connecting wheel frame is installed below the outer end of the horizontal fixing frame, the top of the U-shaped connecting wheel frame is movably hinged to the bottom of the horizontal fixing frame through a swing rocker, and a tilting and swinging adjusting cylinder is arranged on the inner side of the swing rocker, the upper end of the tilting and swinging adjusting cylinder is movably hinged to the bottom of the horizontal fixing frame, and the lower end is movably hinged to the lower part of the swing rocker, the first cleaning and protection mechanism or the second cleaning and protection mechanism is installed in the mounting cavity of the U-shaped connecting wheel frame, and after the lower end of the swing rocker is tilted inwardly into position, the first cleaning and protection mechanism or the second cleaning and protection mechanism at the current position can be rotated 180° to realize the flipping adjustment position, and the swing rocker is controlled to reset after the position adjustment is completed.

[0020] In any of the above schemes, it is preferred that the first cleaning and protection mechanism switches between the scraping station and the spraying station when the station is adjusted; and the second cleaning and protection mechanism switches between the residual material removal station and the air drying station when the station is adjusted.

[0021] In any of the above schemes, it is preferred that the first cleaning and protection mechanism includes a first station rotating seat installed in the mounting cavity of the U-shaped connecting wheel frame on the current folding positioner, the first station rotating seat is movable through the axial hole on the mounting cavity through the central axis fixedly connected on both sides of its center, a first flipping motor is fixedly installed on the outer wall of the U-shaped connecting wheel frame at the current position, the motor shaft of the first flipping motor is connected to the central axis at the corresponding position, the first flipping motor drives the fixed axis rotation of the first station rotating seat by rotation, a scraper member is fixedly installed on the front side wall of the first station rotating seat, the scraper member is used to effectively scrape off rust spots or residues on the inner wall of the kettle body, an atomizing spray nozzle is fixedly installed on the rear side wall of the first station rotating seat, the atomizing spray nozzle is connected to the external anti-corrosion paint box through a spray hose, and a spray power pump and a spray control valve are arranged on the spray hose.

[0022] In any of the above schemes, it is preferred that the second cleaning and protection mechanism includes a second station rotating seat installed in the mounting cavity of the U-shaped connecting wheel frame on the current folding position adjuster, the second station rotating seat movably passes through the axial hole on the mounting cavity through the central axis fixedly connected on both sides of its center, a second flipping motor is fixedly installed on the outer wall of the U-shaped connecting wheel frame at the current position, the motor shaft of the second flipping motor is connected to the central axis at the corresponding position, the second flipping motor drives the fixed axis rotation of the second station rotating seat by rotation, a high-pressure pulse air nozzle is fixedly installed on the front side wall of the second station rotating seat, the high-pressure pulse air nozzle is used for high-pressure blowing off the residual active rust spots or residues on the inner wall of the kettle body, the high-pressure pulse air nozzle cooperates with the external high-pressure air source through the air pipe, and an air-drying air nozzle is fixedly installed on the rear side wall of the second station rotating seat, and the air-drying air nozzle is connected to the external hot air dryer through a hot air hose.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. This large reactor inner wall cleaning device can effectively clean the inner wall of the large reactor, can be raised and lowered according to needs, and can effectively ensure the cleaning effect during the cleaning process. At the same time, the operation of the entire device can be controlled by manual remote control during the cleaning process, which is safer during operation and effectively avoids the problem of manual high-altitude maintenance.

[0025] 2. In the present invention, the cooperation of the elevator and the height control mechanism can effectively ensure that the inner wall of the reactor at different heights can be cleaned. At the same time, during the cleaning process of the inner wall, a camera or a drone can be set up to observe the treatment status of the inner wall of the current reactor. The lifting control can realize the cleaning of the entire inner wall.

[0026] 3. When cleaning the inner wall, the present invention can cooperate with the two first cleaning and protection mechanisms and the two second cleaning and protection mechanisms on the multi-effect cleaning device in the kettle to realize multiple process steps such as initial rust and impurity removal of the inner wall, high-pressure air blowing cleaning, secondary scraping and rust and impurity removal, spraying of anti-corrosion coatings, and air drying. The operation is relatively simple and quick when switching between various processes.

[0027] 4. The cooperation of the two first cleaning and protection mechanisms can realize double-effect scraping and improve the scraping effect; when working, the two first cleaning and protection mechanisms can be in the same process or in different processes, thereby ensuring the reasonable control of multiple processes during inner wall treatment; similarly, the cooperation of the two second cleaning and protection mechanisms can realize efficient impurity removal or efficient air drying, thereby effectively cooperating with the two first cleaning and protection mechanisms to realize further treatment of the inner wall after rust removal or spraying. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the prior art description. In all the drawings, similar elements or components are generally identified by similar reference numerals. In the drawings, the elements or components are not necessarily drawn according to the actual scale.

[0029] Figure 1 It is a structural schematic diagram of the present invention.

[0030] Figure 2 It is a schematic diagram of the layout structure of the use status of the present invention.

[0031] Figure 3 for Figure 2 Schematic diagram of the local enlarged structure.

[0032] Figure 4 for Figure 3 Schematic diagram of the cross-sectional structure when viewed from above in the AA direction.

[0033] Figure 5 It is a schematic diagram of the detailed structure of the first cleaning and protection mechanism of the present invention.

[0034] Figure 6 for Figure 5 Schematic diagram of the local enlarged structure.

[0035] Figure 7 for Figure 5 Schematic diagram of the local enlarged structure in the B direction.

[0036] Figure 8 It is a schematic diagram of the lateral installation structure of the first station rotating seat of the present invention.

[0037] Fig. 9 It is a schematic diagram of the lateral installation structure of the second station rotating seat of the present invention.

[0038] In the figure, 1, reactor body; 101, inner wall; 2, elevator; 3, balance beam; 4, multi-effect cleaning device in reactor; 5, balance weight unit; 6, first cleaning protection mechanism; 7, second cleaning protection mechanism; 8, folding positioner; 801, horizontal fixing frame; 802, U-shaped connecting wheel frame; 803, swing rocker; 804, tilting swing positioner; 9, first station rotating seat; 10, horizontal telescopic cylinder; 11, installation seat ; 12. Multi-stage lifting cylinder; 13. Lifting workbench; 14. Rotary position control motor; 15. Rotating disk; 16. Radial regulator; 1601. Radial adjustment cylinder; 1602. Vertical mounting bracket; 17. Center axis; 18. First flipping motor; 19. Scraper piece; 1901. Blade; 20. Atomizing spray nozzle; 22. Second station rotating seat; 23. Second flipping motor; 24. High-pressure pulse air nozzle; 25. Air-drying air nozzle. DETAILED DESCRIPTION

[0039] The following is a detailed description of the embodiments of the technical solution of the present invention in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present invention. Figure 1-9 as shown in .

[0040] Embodiment 1:

[0041] A device for cleaning the inner wall of a large reactor, wherein the working end of the device for cleaning the inner wall of a large reactor is placed inside the kettle body 1 of the current large reactor to be cleaned when the device is working. The kettle cover on the top of the reactor to be cleaned needs to be hoisted and removed before cleaning. The device for cleaning the inner wall of a large reactor comprises a lift 2, a balance beam 3 is installed on the top of the lift 2, a telescopic positioning control mechanism is installed at the front end of the balance beam 3, a height positioning control mechanism is installed at the front end of the telescopic positioning control mechanism, and a multi-effect cleaning device 4 in the kettle is installed at the bottom of the height positioning control mechanism. The height positioning control mechanism cooperates with the lift 2 to control the working height of the multi-effect cleaning device 4 in the kettle. When working, the multi-effect cleaning device 4 in the kettle is used to extend into the interior of the current large reactor body 1 and clean and repair rust spots and materials adhered to its inner wall.

[0042] The entire apparatus can be shifted by the driving wheels at the bottom of the lift 2, thereby ensuring the smoothness and flexibility of the movement of the entire equipment, and one machine can be used to clean multiple reactors.

[0043] Before cleaning the reactor, you first need to use the electric hoist or crane in the workshop to lift and transfer the lid on the top of the large reactor to be cleaned, so that the top of the reactor body is in an open setting.

[0044] After the entire device is controlled to drive the accessories on it to move to the inner wall of the reactor that needs to be cleaned, the elevator 2 is controlled to stop moving, and then the wheels at the bottom of the elevator 2 are locked. The elevator 2 is controlled to drive the components on its top to rise to the set height, and then the telescopic control mechanism at the front end of the balance beam 3 is controlled to drive the height control mechanism at its front end and the multi-effect cleaning device 4 in the reactor to achieve displacement in the upper direction of the reactor close to the reactor. At the same time, an observation camera or drone can be configured above the reactor to observe the working conditions of the equipment. The horizontal adjustment is achieved by controlling the telescopic control mechanism. When it is adjusted to be nearly coaxial with the center of the reactor body cavity, the multi-effect cleaning device 4 in the reactor is controlled to work to achieve the treatment of the inner wall of the reactor body.

[0045] In any of the above schemes, preferably, a balancing weight unit 5 is fixedly installed at the rear end of the balancing beam 3, and the balancing weight unit 5 is used to ensure the stability of the entire device and reduce the probability of the device tilting.

[0046] In any of the above schemes, it is preferred that the telescopic positioning control mechanism includes two horizontal telescopic cylinders 10 arranged in parallel and spaced apart, the rear ends of the cylinder barrels of the two horizontal telescopic cylinders 10 are fixedly mounted on the front end of the balance beam 3, and the front ends of the piston rods of the two horizontal telescopic cylinders 10 are fixedly connected to the height positioning control mechanism. When the telescopic positioning control mechanism is working, it mainly relies on the synchronous telescopic movement of the two horizontal telescopic cylinders 10 to drive the components at the front end to follow the movement, thereby achieving the purpose of driving the corresponding components to achieve precise displacement.

[0047] In any of the above schemes, it is preferred that the height control mechanism includes a mounting stand 11, the front ends of the piston rods of the two horizontal telescopic cylinders 10 of the telescopic control mechanism are fixedly connected to the mounting stand 11, two multi-stage lifting cylinders 12 are fixedly installed on the front side wall of the mounting stand 11, and the bottoms of the piston rods of the two multi-stage lifting cylinders 12 are fixedly installed on the top of the multi-effect cleaning device 4 in the kettle. The height control mechanism is mainly used to control the height of the multi-effect cleaning device 4 in the kettle, and it mainly relies on the telescopic movement of the two multi-stage lifting cylinders 12 to drive it to achieve lifting and lowering control during operation.

[0048] In any of the above schemes, it is preferred that the multi-effect cleaning device 4 in the kettle includes a lifting workbench 13 fixedly installed at the bottom of the piston rods of the two multi-stage lifting cylinders 12, a rotary positioning motor 14 is fixedly installed at the bottom of the lifting workbench 13, a rotating disk 15 is fixedly installed on the motor shaft of the rotary positioning motor 14, and four radial adjusters 16 are evenly spaced and installed on the circumferential side walls of the rotating disk 15; the length of each radial adjuster 16 in the radial direction of the current large-scale reactor kettle body 1 can be adjusted, a first cleaning protection mechanism 6 is installed at the outer ends of the two relatively arranged radial adjusters 16, and a second cleaning protection mechanism 7 is installed at the outer ends of the other two relatively arranged radial adjusters 16. When working, the multi-effect cleaning device 4 in the kettle mainly relies on the rotation of the rotary positioning motor 14 to drive it to realize fixed-axis rotation. When working, the rotary positioning motor 14 will be moved to a position that is coaxial or substantially coaxial with the center line of the inner cavity of the kettle. The rotation of the rotary positioning motor 14 can drive the rotating disk 15 thereon to realize rotational movement and rotational adjustment. In the process of rotational adjustment, the cleaning and protection mechanism installed thereon can be adjusted in place by adjusting each radial adjuster 16.

[0049] In any of the above solutions, preferably, the interval angles between the four radial adjusters 16 are all 90°.

[0050] In any of the above schemes, it is preferred that the radial adjuster 16 includes a radial adjusting cylinder 1601 fixedly mounted on the outer wall of the rotating disk 15, the piston rod of the radial adjusting cylinder 1601 adopts a double-rod structure extending in the same direction, and the outer ends of the two piston rods of the radial adjusting cylinder 1601 are fixedly connected to a vertical mounting frame 1602, and a folding positioner 8 is movably hinged at the bottom of the vertical mounting frame 1602, and the first cleaning protection mechanism 6 or the second cleaning protection mechanism 7 is installed at the corresponding position of the folding positioner 8; the folding positioner 8 is used to drive the first cleaning protection mechanism 6 or the second cleaning protection mechanism 7 at the corresponding position to flip inward to realize its own rotational adjustment. Each radial adjuster 16 can individually control the telescopic length of the radial adjusting cylinder 1601 thereon. The telescopic movement of the radial adjusting cylinder 1601 can drive the vertical mounting frame 1602 at its end to drive the folding positioner 8 connected thereto, as well as the radial displacement of the first cleaning and protection mechanism 6 or the second cleaning and protection mechanism 7 at the bottom, thereby achieving the purpose of controlling the first cleaning and protection mechanism 6 or the second cleaning and protection mechanism 7 to contact the inner wall of the current reactor.

[0051] In any of the above solutions, it is preferred that the lift 2 adopts a scissors-type lift structure.

[0052] In any of the above schemes, it is preferred that the first cleaning and protection mechanism 6 is used to achieve effective scraping and spray protection of rust spots and adhered paste on the inner wall of the reactor body; the second cleaning and protection mechanism 7 is used to remove the residual material remaining on the inner wall of the reactor body after scraping by the first cleaning and protection mechanism 6 and to air-dry the inner wall of the reactor after spraying.

[0053] In any of the above schemes, preferably, the folding and adjusting device 8 includes a horizontal fixing frame 801 fixedly mounted on the bottom side wall of the vertical mounting frame 1602, and a U-shaped connecting wheel frame 802 is installed below the outer end of the horizontal fixing frame 801, and the top of the U-shaped connecting wheel frame 802 is movably hinged to the bottom of the horizontal fixing frame 801 through a swing rocker 803, and a tilting and swinging adjusting cylinder 804 is arranged on the inner side of the swing rocker 803, and the upper end of the tilting and swinging adjusting cylinder 804 is movably hinged to the bottom of the horizontal fixing frame 801, and the lower end is movably hinged to the lower part of the swing rocker 803, and the first cleaning and protection mechanism 6 or the second cleaning and protection mechanism 7 is installed in the mounting cavity of the U-shaped connecting wheel frame 802, and after the lower end of the swing rocker 803 is tilted inward to the position, the first cleaning and protection mechanism 6 or the second cleaning and protection mechanism 7 at the current position can be rotated 180° to realize the flipping adjustment position, and the swing rocker 803 is controlled to reset after the position adjustment is completed. The main function of the folding positioner 8 is to control the extension and contraction of the tilting and swinging position adjustment cylinder 804 to drive the swinging rocker 803 in the hinged state, the U-shaped connecting wheel frame 802 and the first cleaning and protection mechanism 6 or the second cleaning and protection mechanism 7 installed thereon to achieve inward swing adjustment. At the same time, after the inward adjustment is in place, the first cleaning and protection mechanism 6 or the second cleaning and protection mechanism 7 can be turned over to achieve the adjustment toward the inner wall of the reactor, so that each of the first cleaning and protection mechanisms 6 or the second cleaning and protection mechanisms 7 can achieve the purpose of working on the inner wall of the reactor in a double-station alternating manner. When the swinging rocker 803 is controlled to restore the vertical state, the swinging rocker 803 can be reset and the first cleaning and protection mechanism 6 or the second cleaning and protection mechanism 7 thereon can be reset, and the components facing the inner wall side can be in the working position.

[0054] In any of the above schemes, it is preferred that the first cleaning and protection mechanism 6 switches between the scraping station and the spraying station when the station is adjusted; the second cleaning and protection mechanism 7 switches between the residual material removal station and the air drying station when the station is adjusted. Each of the first cleaning and protection mechanism 6 and the second cleaning and protection mechanism 7 can be switched between the two stations, so that the corresponding working mode can be effectively adjusted according to actual needs.

[0055] Embodiment 2:

[0056] A device for cleaning the inner wall of a large reactor, wherein the working end of the device for cleaning the inner wall of a large reactor is placed inside the kettle body 1 of the current large reactor to be cleaned when the device is working. The kettle cover on the top of the reactor to be cleaned needs to be hoisted and removed before cleaning. The device for cleaning the inner wall of a large reactor comprises a lift 2, a balance beam 3 is installed on the top of the lift 2, a telescopic positioning control mechanism is installed at the front end of the balance beam 3, a height positioning control mechanism is installed at the front end of the telescopic positioning control mechanism, and a kettle multi-effect cleaning device 4 is installed at the bottom of the height positioning control mechanism. The height positioning control mechanism cooperates with the lift 2 to control the working height of the kettle multi-effect cleaning device 4. When working, the kettle multi-effect cleaning device 4 is used to extend into the current large reactor body 1 and clean and repair rust spots and materials adhered to its inner wall 101.

[0057] In any of the above schemes, preferably, a balancing weight unit 5 is fixedly installed at the rear end of the balancing beam 3, and the balancing weight unit 5 is used to ensure the stability of the entire device and reduce the probability of the device tilting.

[0058] In any of the above schemes, it is preferred that the telescopic positioning control mechanism includes two horizontal telescopic cylinders 10 arranged in parallel and spaced apart, the rear ends of the cylinder barrels of the two horizontal telescopic cylinders 10 are fixedly mounted on the front end of the balance beam 3, and the front ends of the piston rods of the two horizontal telescopic cylinders 10 are fixedly connected to the height positioning control mechanism.

[0059] When working, the telescopic positioning control mechanism mainly relies on the synchronous telescopic movement of the two horizontal telescopic cylinders 10 to drive the components at the front end to follow the movement, thereby achieving the purpose of driving the corresponding components to achieve precise displacement.

[0060] In any of the above schemes, it is preferred that the height control mechanism includes a mounting seat 11, the front ends of the piston rods of the two horizontal telescopic cylinders 10 of the telescopic control mechanism are fixedly connected to the mounting seat 11, and two multi-stage lifting cylinders 12 are fixedly installed on the front side wall of the mounting seat 11, and the bottoms of the piston rods of the two multi-stage lifting cylinders 12 are fixedly installed on the top of the multi-effect cleaning device 4 in the kettle.

[0061] The height control mechanism is mainly used to control the height of the multi-effect cleaning device 4 in the kettle. When working, it mainly relies on the extension and retraction of two multi-stage lifting cylinders 12 to drive it to achieve lifting and lowering control.

[0062] In any of the above schemes, it is preferred that the multi-effect cleaning device 4 in the kettle includes a lifting workbench 13 fixedly mounted at the bottom of the piston rods of the two multi-stage lifting cylinders 12, a rotary position control motor 14 is fixedly mounted at the bottom of the lifting workbench 13, a rotating disk 15 is fixedly mounted on the motor shaft of the rotary position control motor 14, and four radial regulators 16 are evenly spaced and mounted on the circumferential side walls of the rotating disk 15;

[0063] The length of each radial regulator 16 in the radial direction of the current large reactor body 1 can be adjusted. A first cleaning and protection mechanism 6 is installed at the outer ends of two relatively arranged radial regulators 16, and a second cleaning and protection mechanism 7 is installed at the outer ends of the other two relatively arranged radial regulators 16.

[0064] When working, the multi-effect cleaning device 4 in the kettle mainly relies on the rotation of the rotary positioning motor 14 to drive it to realize fixed-axis rotation. When working, the rotary positioning motor 14 will be moved to a position that is coaxial or substantially coaxial with the center line of the inner cavity of the kettle. The rotation of the rotary positioning motor 14 can drive the rotating disk 15 thereon to realize rotational movement and rotational adjustment. In the process of rotational adjustment, the cleaning and protection mechanism installed thereon can be adjusted in place by adjusting each radial adjuster 16.

[0065] In any of the above solutions, preferably, the interval angles between the four radial adjusters 16 are all 90°.

[0066] In any of the above schemes, preferably, the radial adjuster 16 comprises a radial adjustment cylinder 1601 fixedly mounted on the outer side wall of the rotating disk 15, the piston rod of the radial adjustment cylinder 1601 adopts a double-rod structure extending in the same direction, the outer ends of the two piston rods of the radial adjustment cylinder 1601 are fixedly connected with a vertical mounting frame 1602, a folding positioner 8 is movably hinged at the bottom of the vertical mounting frame 1602, and the first cleaning protection mechanism 6 or the second cleaning protection mechanism 7 is installed at the corresponding position of the folding positioner 8;

[0067] The folding and adjusting device 8 is used to drive the first cleaning and protection mechanism 6 or the second cleaning and protection mechanism 7 at the corresponding position to flip inwards to realize its own rotation adjustment.

[0068] Each radial adjuster 16 can individually control the telescopic length of the radial adjusting cylinder 1601 thereon. The telescopic movement of the radial adjusting cylinder 1601 can drive the vertical mounting frame 1602 at its end to drive the folding positioner 8 connected thereto, as well as the radial displacement of the first cleaning and protection mechanism 6 or the second cleaning and protection mechanism 7 at the bottom, thereby achieving the purpose of controlling the first cleaning and protection mechanism 6 or the second cleaning and protection mechanism 7 to contact the inner wall of the current reactor.

[0069] In any of the above solutions, it is preferred that the lift 2 adopts a scissors-type lift structure.

[0070] In any of the above solutions, preferably, the first cleaning and protection mechanism 6 is used to effectively scrape and spray the rust spots and adhered paste on the inner wall 101 of the reactor body;

[0071] The second cleaning and protection mechanism 7 is used to remove the residual material remaining on the inner wall 101 of the reactor body after the material is scraped by the first cleaning and protection mechanism 6 and to air-dry the inner wall of the reactor body after spraying.

[0072] In any of the above schemes, preferably, the folding and adjusting device 8 includes a horizontal fixing frame 801 fixedly mounted on the bottom side wall of the vertical mounting frame 1602, and a U-shaped connecting wheel frame 802 is installed below the outer end of the horizontal fixing frame 801, and the top of the U-shaped connecting wheel frame 802 is movably hinged to the bottom of the horizontal fixing frame 801 through a swing rocker 803, and a tilting and swinging adjusting cylinder 804 is arranged on the inner side of the swing rocker 803, and the upper end of the tilting and swinging adjusting cylinder 804 is movably hinged to the bottom of the horizontal fixing frame 801, and the lower end is movably hinged to the lower part of the swing rocker 803, and the first cleaning and protection mechanism 6 or the second cleaning and protection mechanism 7 is installed in the mounting cavity of the U-shaped connecting wheel frame 802, and after the lower end of the swing rocker 803 is tilted inward to the position, the first cleaning and protection mechanism 6 or the second cleaning and protection mechanism 7 at the current position can be rotated 180° to realize the flipping adjustment position, and the swing rocker 803 is controlled to reset after the position adjustment is completed.

[0073] The main function of the folding positioner 8 is to control the extension and contraction of the tilting and swinging position adjustment cylinder 804 to drive the swinging rocker 803 in the hinged state, the U-shaped connecting wheel frame 802 and the first cleaning and protection mechanism 6 or the second cleaning and protection mechanism 7 installed thereon to achieve inward swing adjustment. At the same time, after the inward adjustment is in place, the first cleaning and protection mechanism 6 or the second cleaning and protection mechanism 7 can be turned over to achieve the adjustment toward the inner wall of the reactor, so that each of the first cleaning and protection mechanisms 6 or the second cleaning and protection mechanisms 7 can achieve the purpose of working on the inner wall of the reactor in a double-station alternating manner. When the swinging rocker 803 is controlled to restore the vertical state, the swinging rocker 803 can be reset and the first cleaning and protection mechanism 6 or the second cleaning and protection mechanism 7 thereon can be reset, and the components facing the inner wall side can be in the working position.

[0074] In any of the above schemes, it is preferred that the first cleaning and protection mechanism 6 switches between the scraping station and the spraying station when the station is adjusted; the second cleaning and protection mechanism 7 switches between the residual material removal station and the air drying station when the station is adjusted.

[0075] Each of the first cleaning and protection mechanisms 6 and the second cleaning and protection mechanisms 7 can be switched between the two workstations, thereby being able to effectively adjust the corresponding working mode according to actual needs.

[0076] In any of the above schemes, it is preferred that the first cleaning and protection mechanism 6 includes a first station rotating seat 9 installed in the installation cavity of the U-shaped connecting wheel frame 802 on the current folding positioner 8, and the first station rotating seat 9 is movable through the axis hole on the installation cavity through the central axis 17 fixedly connected on both sides of its center, and a first flipping motor 18 is fixedly installed on the outer wall of the U-shaped connecting wheel frame 802 at the current position, and the motor shaft of the first flipping motor 18 is connected to the central axis 17 at the corresponding position, and the first flipping motor 18 drives the first flipping motor 18 to rotate The first station rotating seat 9 rotates along a fixed axis, and a scraper member 19 is fixedly installed on the front side wall of the first station rotating seat 9. The scraper member 19 is used to effectively scrape off rust spots or residues on the inner wall 101 of the kettle body. An atomizing spray nozzle 20 is fixedly installed on the rear side wall of the first station rotating seat 9. The atomizing spray nozzle 20 is connected to an external anti-corrosion paint box through a spray hose, and a spray power pump and a spray control valve are arranged on the spray hose. The above-mentioned accessories such as the spray hose, spray power pump and spray control valve belong to conventional settings and will not be repeated.

[0077] When the corresponding radial adjuster 16 drives the vertical mounting frame 1602 at its lower end and the folding positioner 8 to follow and move radially, it can drive the first station rotating seat 9 on the U-shaped connecting wheel frame 802 at the end of the folding positioner 8 to follow and move. In a normal state, the scraper member 19 is pressed against the inner wall of the reactor at a certain angle. At this time, under the action of the rotary position control motor 14, the fixed axis of the multi-effect cleaning device 4 in the entire reactor is driven to rotate, so that the scraper member 19 can remove the rust, rust and bonded impurity materials on the inner wall, thereby achieving the purpose of rapid scraping. By controlling the rotation speed of the rotary position control motor 14, the frequency of the scraper member 19 scraping the rust, rust and bonded impurity materials on the inner wall of the reactor can be achieved.

[0078] When working, the first cleaning and protection mechanism 6 on the two radial adjusters 16 with a relative interval of 180 degrees can realize that when it contacts the inner wall of the reactor, the two scraper members 19 are in contact with the inner wall at the same time, or only one of them can be in a working state, and the other is driven by the corresponding radial adjuster 16 to retract inward and not contact the inner wall of the reactor.

[0079] The scraper member 19 can scrape the inner wall when it rotates forward and backward following the fixed axis rotation. The scraper member 19 is designed to have blades 1901 on both sides to achieve bidirectional scraping. Considering the line problem, the rotary positioning motor 14 arranged here adopts a forward and reverse rotation method when driving the four radial adjusters 16 and the working parts thereon to rotate, so as to avoid the problem of pipeline winding caused by excessive rotation in one direction, thereby achieving effective periodic reversing spraying to ensure the normal operation of each component.

[0080] In addition, the folding positioner 8 on one of the corresponding radial adjusters 16 can be controlled as needed to drive the entire first cleaning and protection mechanism 6 to tilt inward. After tilting, the first flip motor 18 can be controlled to rotate 180 degrees to drive the atomizing spray nozzle 20 and the scraper member 19 to switch positions 180°. The design reserves movement space so that the hoses will not cause interference and entanglement during the rotation process. After the position conversion of the scraper member 19 and the atomizing spray nozzle 20 is completed, the tilting and swinging positioner cylinder 804 is controlled to reset, which can drive the entire first cleaning and protection mechanism 6 to reset. At this time, the scraper member 19 that was originally in direct contact with the inner wall of the reactor becomes in a position opposite to the inner wall, and the atomizing spray nozzle 20 that was originally opposite to the inner wall of the reactor is in a position facing the inner wall of the reactor for spraying anti-corrosion coating, thus completing the position conversion.

[0081] In any of the above schemes, it is preferred that the second cleaning and protection mechanism 7 includes a second station rotating seat 22 installed in the installation cavity of the U-shaped connecting wheel frame 802 on the current folding positioner 8, the second station rotating seat 22 is movable through the axial hole on the installation cavity through the central axis 17 fixedly connected on both sides of its center, and a second flipping motor 23 is fixedly installed on the outer wall of the U-shaped connecting wheel frame 802 at the current position, the motor shaft of the second flipping motor 23 is connected to the central axis 17 at the corresponding position, and the second flipping motor 23 drives the fixed axis rotation of the second station rotating seat 22 by rotation, and a high-pressure pulse air nozzle 24 is fixedly installed on the front side wall of the second station rotating seat 22, and the high-pressure pulse air nozzle 24 is used for high-pressure blowing off the residual active rust spots or residues on the inner wall of the kettle body, and the high-pressure pulse air nozzle 24 cooperates with the external high-pressure air source through the air pipe, and an air-drying air nozzle 25 is fixedly installed on the rear side wall of the second station rotating seat 22, and the air-drying air nozzle 25 is connected to the external hot air dryer through a hot air hose.

[0082] When the corresponding radial adjuster 16 drives the vertical mounting frame 1602 at its lower end and the folding positioner 8 to follow and move radially, it can drive the second station rotating seat 22 on the U-shaped connecting wheel frame 802 at the end of the folding positioner 8 to follow and move. In the normal state, the high-pressure pulse air nozzle 24 is in a state facing the inner wall of the reactor, and it can cooperate with the scraper member 19 to further remove the rust or impurities remaining on the inner wall of the reactor cleaned by the scraper member 19 by high-pressure airflow; at this time, under the action of the rotary positioning motor 14, the entire multi-effect cleaning device 4 in the reactor is driven to rotate on a fixed axis, so that the scraper member 19 can remove the rust, rust and bonded impurity materials on the inner wall, and then rely on the high-pressure pulse air nozzle 24 to rotate in a circle under the action of rotation and spray the inner wall of the reactor with high-pressure airflow to achieve dust removal and removal of residual impurities, thereby achieving the purpose of improving the rust removal and scraping effects.

[0083] By controlling the rotation speed of the rotary position control motor 14, the frequency and effect of the high-pressure pulse air nozzle 24 in cleaning the residual and floating rust spots, rust and bonded impurity materials on the inner wall of the reactor can be achieved.

[0084] When working, the second cleaning and protection mechanism 7 on the two radial regulators 16 with a relative interval of 180 degrees can realize that when they are in contact with the inner wall of the reactor, the two high-pressure pulse air nozzles 24 are in high-pressure removal of impurities on the inner wall of the reactor at the same time, or only one of them can be in a working state, and the other is driven by the corresponding radial regulator 16 to retract inward and is in an idle state without contacting the inner wall of the reactor.

[0085] In addition, the folding positioner 8 on one of the corresponding radial regulators 16 can be controlled as needed to drive the entire second cleaning and protection mechanism 7 to tilt inward. After tilting, the second flip motor 23 can be controlled to rotate 180 degrees to drive the high-pressure pulse air nozzle 24 and the air-drying air nozzle 25 to switch their working positions by 180°. The design reserves movement space so that the hoses will not cause interference and entanglement during the rotation process. After the working position conversion of the high-pressure pulse air nozzle 24 and the air-drying air nozzle 25 is completed, the tilting and swinging positioner cylinder 804 of the folding positioner 8 at the corresponding position is controlled to be reset, which can drive the entire second cleaning and protection mechanism 7 to reset. At this time, the high-pressure pulse air nozzle 24, which was originally directly opposite to the inner wall of the reactor, becomes a position opposite to the inner wall, and the air-drying air nozzle 25, which was originally opposite to the inner wall of the reactor, is in a position facing the inner wall of the reactor and can realize air drying of the inner wall after spraying anti-corrosion paint, thereby completing the working position conversion.

[0086] During the entire inner wall treatment process, the order of the working steps is as follows: the scraper member 19 works to scrape off the rust spots on the inner wall, the high-pressure pulse air nozzle 24 performs high-pressure cleaning on the rust spots that have not been completely scraped off and the residual particulate impurities on the inner wall of the reactor. After the cleaning is completed, the atomizing spray nozzle 20 sprays the anti-corrosion paint on the cleaned inner wall surface of the reactor. After the anti-corrosion paint is sprayed, the sprayed paint is gently blown dry using the air drying air nozzle 25.

[0087] During the entire processing process, the fixed-axis rotation control is realized by the rotary positioning motor 14. At the same time, it is also necessary to cooperate with an external camera or drone to monitor the current processing status of the inner wall, and at the same time control the elevator 2 and the height control mechanism to achieve appropriate height displacement to ensure comprehensive processing of the inner wall of the entire reactor.

[0088] Specific working principle:

[0089] The entire apparatus can be shifted by the driving wheels at the bottom of the lift 2, thereby ensuring the smoothness and flexibility of the movement of the entire equipment, and one machine can be used to clean multiple reactors.

[0090] Before cleaning the reactor, you first need to use the electric hoist or crane in the workshop to lift and transfer the lid on the top of the large reactor to be cleaned, so that the top of the reactor body is in an open setting.

[0091] After the whole device is controlled to drive the accessories on it to move to the inner wall of the reactor that needs to be cleaned, the elevator 2 is controlled to stop moving, and then the wheels at the bottom of the elevator 2 are locked. The elevator 2 is controlled to drive the components on its top to rise to the set height, and then the telescopic control mechanism at the front end of the balance beam 3 is controlled to drive the height control mechanism at its front end and the multi-effect cleaning device 4 in the reactor to shift in the direction above the reactor close to the reactor. At the same time, an observation camera or a drone can be configured above the reactor to observe the working condition of the equipment.

[0092] The horizontal adjustment is achieved by controlling the telescopic position control mechanism. When it is adjusted to be nearly coaxial with the center of the inner cavity of the kettle, the multi-effect cleaning device 4 in the kettle is controlled to work to achieve the treatment of the inner wall of the kettle.

[0093] When the various components of this device are displaced, the telescopic positioning control mechanism mainly relies on the synchronous extension and retraction of the two horizontal telescopic cylinders 10 to drive the components at the front end to follow the movement, so as to achieve the purpose of driving the corresponding components to achieve precise displacement. The height control mechanism is mainly used to control the height of the multi-effect cleaning device 4 in the kettle. When working, it mainly relies on the extension and retraction of two multi-stage lifting cylinders 12 to drive it to achieve lifting and positioning control. When working, the multi-effect cleaning device 4 in the kettle mainly relies on the rotation of the rotary positioning control motor 14 to drive it to achieve fixed-axis rotation. When working, the rotary positioning control motor 14 will be moved to a position that is coaxial or substantially coaxial with the center line of the inner cavity of the kettle. The rotation of the rotary positioning control motor 14 can drive the rotating disk 15 thereon to achieve rotational movement and rotational adjustment. In the process of rotational adjustment, the cleaning and protection mechanism installed thereon can be adjusted in place by adjusting each radial regulator 16.

[0094] By controlling the extension and contraction of the tilting and swinging adjustment cylinder 804, the swinging rocker 803 in the articulated state, the U-shaped connecting wheel frame 802 and the first cleaning and protection mechanism 6 or the second cleaning and protection mechanism 7 installed thereon can be driven to realize inward swing adjustment. At the same time, after the inward adjustment is in place, the first cleaning and protection mechanism 6 or the second cleaning and protection mechanism 7 can be turned over by itself to realize the adjustment toward the inner wall position of the reactor, so that each of the first cleaning and protection mechanism 6 or the second cleaning and protection mechanism 7 can realize the purpose of working on the inner wall of the reactor in a double-station alternating manner. When the swinging rocker 803 is controlled to restore the vertical state, the resetting of the swinging rocker 803 and the resetting of the first cleaning and protection mechanism 6 or the second cleaning and protection mechanism 7 thereon can be realized, and the components facing the inner wall side are in the working position. Each first cleaning and protection mechanism 6 and the second cleaning and protection mechanism 7 can be converted between the two stations, so that the corresponding working mode can be effectively adjusted according to actual needs.

[0095] During the entire inner wall treatment process, the order of the working steps is as follows: the scraper member 19 works to scrape off the rust spots on the inner wall, the high-pressure pulse air nozzle 24 performs high-pressure cleaning on the rust spots that have not been completely scraped off and the residual particulate impurities on the inner wall of the reactor. After the cleaning is completed, the atomizing spray nozzle 20 sprays the anti-corrosion paint on the cleaned inner wall surface of the reactor. After the anti-corrosion paint is sprayed, the sprayed paint is gently blown dry using the air drying air nozzle 25.

[0096] The large reactor inner wall cleaning device can effectively clean the inner wall of the reactor of a large reactor, can realize height lifting as needed, can effectively ensure the cleaning effect during the cleaning process, and can be controlled by manual remote control during the cleaning process, which is safer during the operation and effectively avoids the problem of manual high-altitude operation maintenance. In the present invention, the cooperation of the elevator 2 and the height control mechanism can effectively ensure that the inner wall of the reactor at different heights can be cleaned, and the processing of the inner wall of the current reactor can be observed by setting a camera or a drone during the cleaning process of the inner wall, and the cleaning of the entire part of the inner wall can be realized through lifting control. When cleaning the inner wall, the present invention can cooperate with the two first cleaning protection mechanisms 6 and the two second cleaning protection mechanisms 7 on the multi-effect cleaning device 4 in the kettle to realize the first rust removal and impurity removal of the inner wall, high-pressure air blowing cleaning, secondary scraping and rust removal, spraying of anti-corrosion coatings, air drying and other process steps, and the operation is relatively simple and fast when each process is converted. The cooperation of the two first cleaning and protection mechanisms 6 can realize double-effect scraping and improve the scraping effect; when working, the two first cleaning and protection mechanisms 6 can be in the same process or in different processes, thereby ensuring the reasonable control of multiple processes during the inner wall treatment; similarly, the cooperation of the two second cleaning and protection mechanisms 7 can realize efficient impurity removal or efficient air drying, thereby effectively cooperating with the two first cleaning and protection mechanisms 6 to realize further treatment of the inner wall after rust removal or spraying.

[0097] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some or all of the technical features therein can be replaced by equivalents. 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 present invention, and they should all be included in the scope of the claims and description of the present invention. For those skilled in the art, any replacement, improvement or change made to the implementation mode of the present invention falls within the protection scope of the present invention.

[0098] The matters not described in detail in the present invention are all known technologies to those skilled in the art.

Claims

1. A large reactor inner wall cleaning device, characterized by: When the large reactor inner wall cleaning device is working, its working end is placed inside the large reactor body to be cleaned. Before cleaning, the reactor to be cleaned needs to be hoisted and removed from the top of the reactor. The large reactor inner wall cleaning device includes a lift, a balance beam is fixedly installed on the top of the lift, a telescopic position control mechanism is installed at the front end of the balance beam, a height control mechanism is installed at the front end of the telescopic position control mechanism, and a multi-effect cleaning device in the reactor is installed at the bottom of the height control mechanism. The height control mechanism cooperates with the lift to control the working height of the multi-effect cleaning device in the reactor. When working, the multi-effect cleaning device in the reactor is used to extend into the current large reactor body and clean and repair the rust spots and materials adhered to its inner wall; The multi-effect cleaning device in the reactor comprises a rotary position control motor, a rotating disk is fixedly mounted on the motor shaft of the rotary position control motor, and four radial adjusters are evenly mounted on the circumferential side wall of the rotating disk; the length of each radial adjuster in the radial direction of the current large reactor body can be adjusted, and a first cleaning protection mechanism is mounted on the outer ends of two radial adjusters arranged opposite to each other; The radial adjuster includes a radial adjusting cylinder fixedly mounted on the outer side wall of the rotating disk, the piston rod of the radial adjusting cylinder adopts a double-rod structure extending in the same direction, a vertical mounting frame is fixedly connected to the outer ends of the two piston rods of the radial adjusting cylinder, a folding positioner is movably hinged at the bottom of the vertical mounting frame, and the first cleaning and protection mechanism is installed at the corresponding position of the folding positioner.

2. The large reactor inner wall cleaning device according to claim 1, characterized in that: A balancing weight unit is fixedly installed at the rear end of the balancing beam, and the balancing weight unit is used to ensure the stability of the entire device and reduce the probability of the device tilting.

3. The large reactor inner wall cleaning device according to claim 2, characterized in that: The telescopic positioning control mechanism includes two horizontal telescopic cylinders arranged in parallel and at intervals. The rear ends of the cylinder barrels of the two horizontal telescopic cylinders are fixedly installed on the front end of the balance beam, and the front ends of the piston rods of the two horizontal telescopic cylinders are fixedly connected to the height positioning control mechanism.

4. The large reactor inner wall cleaning device according to claim 3, characterized in that: The height control mechanism includes a mounting seat, the front ends of the piston rods of the two horizontal telescopic cylinders of the telescopic control mechanism are fixedly connected to the mounting seat, and two multi-stage lifting cylinders are fixedly installed on the front side wall of the mounting seat, and the bottoms of the piston rods of the two multi-stage lifting cylinders are fixedly installed on the top of the multi-effect cleaning device in the kettle.

5. The large reactor inner wall cleaning device according to claim 4, characterized in that: The rotary position control motor is fixed to the bottom of the lifting workbench, and the lifting workbench is fixedly mounted on the bottom of the piston rods of the two multi-stage lifting cylinders; The second cleaning and protection mechanisms are installed at the outer ends of the other two radial adjusters which are arranged opposite to each other.

6. The large reactor inner wall cleaning device according to claim 5, characterized in that: The interval angles between the four radial adjusters are all 90°.

7. The large reactor inner wall cleaning device according to claim 6, characterized in that: A second cleaning and protection mechanism is installed at a corresponding position of the folding positioner.

8. The large reactor inner wall cleaning device according to claim 7, characterized in that: The folding and adjusting device is used to drive the first cleaning and protection mechanism or the second cleaning and protection mechanism at the corresponding position to flip inwards and realize its own rotation adjustment.

9. The large reactor inner wall cleaning device according to claim 8, characterized in that: The lift adopts a scissor lift structure.

10. The large reactor inner wall cleaning device according to claim 9, characterized in that: The first cleaning and protection mechanism is used to effectively scrape and spray rust spots and adhered paste on the inner wall of the reactor body; The second cleaning and protection mechanism is used to remove the residual material remaining on the inner wall of the reactor body after the material has been scraped by the first cleaning and protection mechanism and to air-dry the inner wall of the reactor body after spraying.

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