Stripping equipment for contaminated concrete surface layer and use method

Abstract

The invention belongs to the technical field of concrete stripping devices, and discloses stripping equipment for a polluted concrete surface layer and a using method. A spraying and microwave generating device is mounted on a bearing device; the lifting device is connected with the bearing device; a spraying control device and a microwave control device are arranged in the operating device, and a feeding hole is formed in the operating device; a plurality of microwave radiation outlets and a plurality of spraying openings are formed in the end, opposite to the operation device, of the spraying and microwave generating device, microwave generating devices are arranged in the microwave radiation outlets, and spraying devices are arranged in the spraying openings; and an isolating layer is arranged between the spraying device and the microwave generating device. The device is simple in structure and convenient to disassemble, assemble and maintain, a plurality of microwave generating devices and spraying devices which are isolated from one another can be arranged, the device adapts to contaminated concrete layers with different thicknesses, and therefore the stripping efficiency and stripping depth of the contaminated concrete layers are improved.

Description

Technical Field

[0001] The invention belongs to the technical field of concrete stripping devices, and in particular relates to a stripping device for a contaminated concrete surface layer and a use method thereof. Background Art

[0002] With the development of the nuclear energy industry, the number of nuclear power units in the world is increasing day by day, and the first generation of nuclear power plants are gradually reaching their design life. How to achieve the decommissioning of nuclear facilities has become a focus of attention for nuclear industrial countries around the world. Due to long-term operation, many concrete structures have residual radioactive nuclides, such as strontium, cesium, cobalt, uranium, etc. Usually, radioactive nuclides are only contained in the surface layer of concrete. When the site is decommissioned, an effective system is needed to remove the contaminated surface and properly dispose of it as nuclear waste. The existing methods for stripping contaminated concrete layers are mainly mechanical demolition, chemical cleaning, and curing and sealing treatment. Although the above methods can strip the contaminated concrete layer, the stripping effect is poor and the stripping process is accompanied by problems such as high energy consumption and environmental pollution.

[0003] The Chinese patent publication number is CN114991518A, and the name is a patent application for a precision control device and method based on microwave heating to assist concrete surface cutting. The device includes a working mechanical arm, a rotating mechanical arm, a lifting device and a control center; the working mechanical arm is connected to the mechanical support device through the rotating mechanical arm, and a microwave heating device and a concrete cutting device and a spraying device are arranged at intervals in the working mechanical arm; the control center is respectively connected to the working mechanical arm, the lifting device, the microwave heating device, the concrete cutting device and the spraying device to perform microwave heating, cutting and spraying on the surface concrete. The microwave generator radiates the temperature of the concrete surface to be treated; the mechanical tool cuts the concrete surface after microwave heating; the rotatable working mechanical arm changes the construction area; the spraying device reduces the dust content in the construction area. The device has a complex structure, and the output microwave and spray can only pass through the mechanical arm, which is limited in number and not easy to replace and repair. Summary of the invention

[0004] In order to overcome the problems existing in the above-mentioned prior art, the purpose of the present invention is to provide a device for stripping the surface layer of contaminated concrete and a method for using the device. The present invention installs the spraying and microwave generating devices on a load-bearing device that can be lifted and lowered, has a simple structure, is easy to disassemble and repair, can set a plurality of mutually isolated microwave generating devices and spraying devices, and is suitable for contaminated concrete layers of different thicknesses, thereby improving the stripping efficiency and stripping depth of the contaminated concrete layer.

[0005] To achieve the above object, the technical solution adopted by the present invention is: In the first aspect, the present invention provides a device for stripping the surface layer of contaminated concrete, comprising a load-bearing device, a lifting device and an operating device; a spraying and microwave generating device is installed on the load-bearing device; the lifting device is connected to the load-bearing device; a spraying control device and a microwave control device are provided in the operating device, and a feed port is provided on the operating device; a plurality of microwave radiation outlets and a plurality of spraying ports are provided at one end of the spraying and microwave generating device facing away from the operating device, a microwave generating device is provided in the microwave radiation outlet, and a spraying device is provided in the spraying port; an isolation layer is provided between the spraying device and the microwave generating device.

[0006] Optionally, a crawler vehicle is provided at the bottom of the load-bearing device, and the load-bearing device, the lifting device and the operating device are all fixed on the crawler vehicle.

[0007] Optionally, the lifting device includes a skeleton having a crossbeam, both ends of the crossbeam are connected to pillars, a fixing plate is connected between two pillars, a lifting motor is installed on the fixing plate, and the output shaft of the lifting motor is connected to the load-bearing device through a connecting cable.

[0008] Optionally, a first pulley, a second pulley and a fixing device are provided on the cross beam of the skeleton; a fixing rod is provided on the load-bearing device, and a third pulley and a fourth pulley are provided at both ends of the top of the fixing rod respectively; one end of the connecting rope is connected to the lifting motor, and the other end is connected to the first pulley, the third pulley, the second pulley, the fourth pulley and the fixing device in sequence.

[0009] Optionally, the load-bearing device includes a platform, a vertical rectangular frame is connected to the top of the platform, and the fixing rod is fixed on the rectangular frame.

[0010] Optionally, the second pulley is arranged between the first pulley and the fixing device, the third pulley is located vertically between the first pulley and the second pulley, and the fourth pulley is located between the second pulley and the fixing device.

[0011] Optionally, the microwave generating device includes a magnetron, a high-voltage transformer and a waveguide, the magnetron is arranged at the top of the waveguide, the high-voltage transformer is arranged at the top of the waveguide, and the end of the waveguide is inserted into the microwave radiation outlet.

[0012] Optionally, a liquid channel is opened in the center of the spraying device along its long axis direction, and one end of the liquid channel has a liquid ejection hole.

[0013] Optionally, the operating device has an air pump, one end of which is connected to the spraying device; and the spraying control device is communicatively connected to the air pump.

[0014] In a second aspect, the present invention provides a method for using the device for stripping a contaminated concrete surface, comprising the following steps: Use a lifting device to raise the spraying and microwave generating device to a target height through a load-bearing device; Add the absorbing coating through the feed port; The spraying device is controlled by the spraying control device to spray, and the spraying device is turned off after the spraying of the target wall is completed; The microwave generator is controlled by the microwave control device to perform microwave heating, and the microwave generator is turned off after the contaminated concrete layer is stripped off.

[0015] Compared with the prior art, the present invention has the following beneficial effects: Compared with the existing contaminated concrete layer stripping method, the present invention can control the height of the contaminated concrete layer to be stripped at any time by lifting the height of the lifting device, and the spraying and microwave generating device is not directly connected to the lifting device, which is convenient for maintenance. The spraying and microwave generating device of the present invention can be provided with a plurality of mutually isolated microwave generating devices and spraying devices, and microwave radiation can be isolated by the isolation layer, and microwave radiation power can be controlled by the microwave operating device, so as to adapt to contaminated concrete layers of different thicknesses; the microwave absorbing coating can be sprayed by the spraying device, so as to improve the stripping efficiency and stripping depth of the contaminated concrete layer.

[0016] Furthermore, the present invention has a crawler vehicle, which can be easily moved on the complex road surface of the construction site.

[0017] Furthermore, the present invention realizes pulling of the load-bearing device through a plurality of pulleys, thereby ensuring its smooth operation during the lifting process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are for explanation purposes only and are not intended to limit the scope of the present invention in any way. In addition, the shapes and proportional dimensions of the components in the drawings are only for illustration purposes to help understand the present invention, and are not intended to specifically limit the shapes and proportional dimensions of the components of the present invention. In the drawings: Figure 1 It is an overall three-dimensional diagram of the stripping device for the surface layer of contaminated concrete in an embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of a microwave generating device in an embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of a spraying device in an embodiment of the present invention; Figure 4 The spray coating and microwave generating device in the embodiment of the present invention; Figure 5 It is a rear view of the whole device for stripping the surface layer of contaminated concrete in an embodiment of the present invention; Figure 6A schematic diagram of the structure of a lifting device in an embodiment of the present invention; Figure 7 A flow chart of a device for stripping a contaminated concrete surface according to an embodiment of the present invention; In the figure: 1. crawler; 2. load-bearing device; 3. lifting device; 4. operating device; 5. spraying and microwave generating device; 6. microwave generating device; 7. spraying device; 8. isolation layer; 9. microwave radiation outlet; 10. spraying port; 11. spraying control device; 12. feeding port; 13. microwave control device; 14. connecting rope; 15. frame; 16. lifting motor; 17. pulley; 18. magnetron; 19. high-voltage transformer; 20. Waveguide tube; 21. Communication interface; 22. Water pipe interface; 23. Liquid channel; 24. Thread; 25. Liquid ejection hole; 26. Storage chamber; 27. Air pump; 28. Discharge port; 29. ​​Inlet; 151. Fixed plate; 171. First pulley; 172. Second pulley; 173. Third pulley; 174. Fourth pulley; 175. Fixing device; 201. Fixed rod; 221. Water inlet; 222. Water outlet. DETAILED DESCRIPTION

[0019] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0020] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] In the description of the embodiments of the present invention, it should be noted that if the terms "upper", "lower", "horizontal", "inner", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the product of the invention is usually placed when used. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0022] When an element is referred to as being "disposed on" another element, it may be directly on the other element or there may also be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may also be a central element. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only embodiments. If the term "horizontal" appears, it does not mean that the component is required to be absolutely horizontal, but it can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", which does not mean that the structure must be completely horizontal, but it can be slightly tilted.

[0023] It should be noted that similar reference numerals and letters represent similar items in the following figures, so once an item is defined in one figure, it does not need to be further defined and explained in the subsequent figures. In the description of the present invention, it is understood that the terms "include" and "comprise" indicate the presence of the described features, wholes, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or their collections.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art of the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. As used in the specification of the present invention and the appended claims, the singular forms of "a", "an" and "the" are intended to include plural forms unless the context clearly indicates otherwise.

[0025] The present invention is described in detail below with reference to the accompanying drawings.

[0026] like Figure 1 As shown, a device for stripping the surface layer of contaminated concrete of the present invention comprises a load-bearing device 2, a lifting device 3 and an operating device 4; a spraying and microwave generating device 5 is installed on the load-bearing device 2; the lifting device 3 is connected to the load-bearing device 2; a spraying control device 11 and a microwave control device 13 are provided in the operating device 4, and a feed port 12 is provided on the operating device 4; a plurality of microwave radiation outlets 9 and a plurality of spraying ports 10 are provided at one end of the spraying and microwave generating device 5 facing away from the operating device 4, a microwave generating device 6 is provided in the microwave radiation outlet 9, and a spraying device 7 is provided in the spraying port 10; an isolation layer 8 is provided between the spraying device 7 and the microwave generating device 6.

[0027] The device for stripping the surface layer of contaminated concrete of the present invention comprises the following steps when in use: Use the lifting device 3 to raise the spraying and microwave generating device 5 to the target height through the load-bearing device 2; Add the absorbing coating through the feed port 12; The spraying device 7 is controlled by the spraying control device 11 to spray, and the spraying device 7 is turned off after the spraying of the target wall is completed; The microwave generator 6 is controlled by the microwave control device 13 to perform microwave heating, and the microwave generator 6 is turned off after the contaminated concrete layer is stripped off.

[0028] The present invention installs the spraying and microwave generating device 5 on a load-bearing device 2 that can be raised and lowered, has a simple structure, is easy to disassemble and repair, and can be provided with a plurality of mutually isolated microwave generating devices 6 and spraying devices 7 to adapt to contaminated concrete layers of different thicknesses, thereby improving the stripping efficiency and stripping depth of the contaminated concrete layer.

[0029] Example 1 In this example, a device for stripping a contaminated concrete surface is provided, which includes a tracked vehicle 1 , a load-bearing device 2 , a lifting device 3 and an operating device 4 .

[0030] The load-bearing device 2 , the lifting device 3 and the operating device 4 are all fixed on the crawler vehicle 1 .

[0031] The crawler vehicle 1 is used to carry the entire equipment, so that the equipment can travel normally in various complex terrains.

[0032] Specifically, the crawler vehicle 1 has a rectangular plate, and a crawler driving device is installed at the bottom of the rectangular plate.

[0033] Specifically, the crawler drive device is an electric drive device, which has an electric motor, the output shaft of the electric motor is connected to a driving wheel, the driving wheel is connected to a speed reduction mechanism, and the speed reduction mechanism is connected to the crawler. The electric motor serves as a power source to provide power for the crawler.

[0034] Specifically, the long axis direction of the crawler is consistent with the spraying direction.

[0035] The operating device 4 and the load-bearing device 2 are respectively fixed on both sides of the rectangular plate of the crawler vehicle 1 , wherein the lifting device 3 is fixed on the rectangular plate of the crawler vehicle 1 at a position between the operating device 4 and the load-bearing device 2 .

[0036] Furthermore, the operating device 4 and the load-bearing device 2 are respectively fixed on two sides of the rectangular plate along the long axis direction of the crawler track.

[0037] Optionally, the load-bearing device 2 is made of Q235 steel with a thickness of 10 mm.

[0038] Specifically, the load-bearing device 2 includes a platform, and a vertical rectangular frame is connected to the top of the platform.

[0039] Optionally, the platform area of ​​the load-bearing device 2 is 2m 2 Up to 5m 2 The rectangular frame has a window in the center, which can reduce the weight of the load-bearing device 2.

[0040] The rectangular frame of the load-bearing device 2 has two vertical rods, the two vertical rods are connected by a horizontal rod, and a fixing rod 201 is fixed between the two vertical rods.

[0041] A spraying and microwave generating device 5 is installed on the platform of the load-bearing device 2. Specifically, the spraying and microwave generating device 5 is placed on the load-bearing device 2.

[0042] The spraying and microwave generating device 5 is used to first spray the microwave absorbing coating and then radiate the microwave, so as to achieve the purpose of stripping the contaminated concrete layer.

[0043] The spraying and microwave generating device 5 comprises a shell. A microwave generating device 6 and a spraying device 7 are arranged inside the shell. A plurality of microwave radiation outlets 9 and a spraying port 10 are provided on one side of the shell of the spraying and microwave generating device 5.

[0044] The microwave radiation outlet 9 is used to guide the microwave radiation direction, and the spray port 10 is used to spray the microwave absorbing coating onto the surface of the contaminated concrete layer.

[0045] An isolation layer 8 is provided between the microwave generating device 6 and the spraying device 7 in the spraying and microwave generating device 5. The isolation layer 8 is provided inside the shell of the spraying and microwave generating device 5.

[0046] Optionally, the isolation layer 8 is perpendicular to the wall surface of the spraying and microwave generating device 5 on which the microwave radiation outlet 9 and the spraying port 10 are opened.

[0047] The microwave generating device 6 and the spraying device 7 can be isolated from each other by the isolation layer 8 .

[0048] Optionally, the isolation layer 8 is made of a metal-based composite material, a carbon-based composite material, or a polymer-based composite material.

[0049] Furthermore, the material of the isolation layer 8 is ordinary steel, which can effectively shield microwave radiation and have a heat insulation effect.

[0050] Optionally, the microwave radiation outlet 9 and the spray port 10 are both arranged vertically on the wall surface of the spray and microwave generating device 5 .

[0051] Furthermore, the microwave radiation outlet 9 and the spraying port 10 are arranged vertically at equal distances.

[0052] Furthermore, the microwave radiation outlets 9 are arranged vertically in two rows as a group, and a row of spray ports 10 is arranged on both sides of each group of microwave radiation outlets 9 .

[0053] Specifically, in this embodiment, the microwave radiation outlets 9 have two groups, each group has two columns arranged at equal intervals vertically, and each column has four microwave radiation outlets 9. The spraying ports 10 have three columns, and both sides of the two groups of microwave radiation outlets 9 have a column of spraying ports 10. An isolation layer 8 is provided between the two sides of each group of microwave radiation outlets 9 and the spraying ports 10.

[0054] like Figure 4 As shown, one end of the microwave generating device 6 is connected to the microwave radiation outlet 9 , and the other end is located inside the shell of the spray and microwave generating device 5 .

[0055] One end of the spray device 7 is connected to the spray port 10 , and the other end is located inside the shell of the spray and microwave generating device 5 .

[0056] The lifting device 3 is used to control the lifting and lowering of the microwave generating device 6 and the spraying device 7, and adjust the height of the microwave generating device 6 and the spraying device 7, so as to achieve the purpose of stripping the contaminated concrete layer at a high place.

[0057] The microwave generating device 6 is used to generate microwaves and propagate them in a desired direction. The spraying device 7 is used to spray microwave absorbing paint onto the target wall surface. The isolation layer 8 has microwave shielding capability.

[0058] like Figure 5 As shown, the operating device 4 is used to fill the microwave absorbing paint, control the spraying pressure and control the microwave power.

[0059] The operating device 4 comprises a housing in which a spray control device 11 , a microwave control device 13 , a material storage chamber 26 and an air pump 27 are arranged.

[0060] A feed inlet 12 is provided on a side of the housing of the operating device 4 that faces away from the spray coating and microwave generating device 5 .

[0061] The feed port 12 is used to add the absorbing coating. The absorbing coating uses a polymer solution or an emulsion as a base material and has an absorbent. Further, the polymer solution uses a resin solution or a rubber solution. The absorbent is a coating type absorbing material, using ferrite or iron and its alloy powder.

[0062] The feed port 12 is communicated with the storage chamber 26 .

[0063] The air pump 27 has an inlet 29 and an outlet 28 . The inlet 29 is connected to the storage chamber 26 via a pipeline, and the outlet 28 is connected to the liquid channel 23 of the spraying device 7 via a pipeline.

[0064] The microwave control device 13 is communicatively connected with the microwave generating device 6 .

[0065] The spray control device 11 is used to control the spray pressure and the spray switch.

[0066] The microwave control device 13 is used to control the microwave power and the switch of microwave radiation.

[0067] The spray control device 11 is in communication connection with the air pump 27 .

[0068] The microwave control device 13 changes the output power of the magnetron 18 by controlling the voltage input, thereby controlling the power of the microwave generating device 6 .

[0069] The spray control device 11 controls the flow rate of the spray device 7 by controlling the pressure of the air pump 27 .

[0070] The spray control device 11 and the microwave control device 13 are both communicatively connected to a PLC control system, and the PLC control system has a touch screen controller.

[0071] The PLC control system can play a role of comprehensive control and coordination in the spray control device 11 and the microwave control device 13, can receive signals from various sensors, analyze and process these signals, and then control the spray control device 11 and the microwave control device 13 according to preset program logic.

[0072] The touch screen can provide an intuitive and convenient operating interface, and parameters including the pressure and flow rate of the spraying device and the microwave radiation power of the microwave generating device can be set and adjusted by touching the screen.

[0073] At the same time, the touch screen controller can display real-time status information including pressure value, flow value, and equipment operating temperature of the spray device 7 and the microwave generator 6. This visual operation and monitoring method enables the operator to more easily grasp the working conditions of the spray device and discover and handle problems in a timely manner.

[0074] Optionally, the spray control device 11 and the microwave control device 13 are respectively located on both sides of the wall of the housing of the operating device 4 that faces away from the spray and microwave generating device 5. The feed port 12 is located below the spray control device 11 and the microwave control device 13.

[0075] Figure 2 It is a schematic diagram of the structure of the microwave generating device 6 in the example of the present invention.

[0076] The microwave generating device 6 is used to generate microwaves, and the microwave generating device 6 includes a magnetron 18 , a high-voltage transformer 19 and a waveguide 20 .

[0077] The magnetron 18 is disposed on the top of the waveguide tube 20 , and the high-voltage transformer 19 is disposed on the top of the waveguide tube 20 .

[0078] A communication interface 21 is provided on the side of the high-voltage transformer 19 ; a water pipe interface 22 is provided on the side of the magnetron 18 , wherein the water pipe interface 22 and the communication interface 21 are oriented in the same direction.

[0079] The water inlet 221 is connected to an external water source through a pipeline, and the water outlet 222 is connected to the outside through a pipeline.

[0080] Optionally, the power of the magnetron 18 is 1.5 kW.

[0081] The high-voltage transformer 19 is used to convert the input standard voltage into a high voltage that can be used to generate microwaves.

[0082] The waveguide 20 is used to guide the microwaves to be emitted from the microwave radiation outlet 9 .

[0083] Optionally, the top surface area of ​​the waveguide 20 is larger than the bottom surface area of ​​the magnetron 18 , and the top surface area of ​​the magnetron 18 is larger than the bottom surface area of ​​the high-voltage transformer 19 .

[0084] Figure 3 It is a schematic diagram of the structure of the spraying device 7 of the example of the present invention.

[0085] Both ends of the spray device 7 are conical, a thread 24 is provided in the middle of the spray device 7, a liquid channel 23 is provided in the center of the spray device 7 along its long axis, and a liquid outlet hole 25 is provided at one end of the liquid channel 23.

[0086] The liquid ejection hole 25 is a tapered hole.

[0087] Optionally, the spraying device 7 is made of stainless steel.

[0088] Optionally, the hole wall of the spray port 10 has a thread, and the thread 24 is used to connect with the spray port 10 to fix the spray device 7.

[0089] The liquid ejection hole 25 is an ejection outlet of the wave absorbing material.

[0090] Optionally, the waveguide 20 is a right quadrangular prism. The microwave radiation outlet 9 is a rectangular hole.

[0091] The end of the waveguide 20 is inserted into the microwave radiation outlet 9 .

[0092] Optionally, the size of the microwave radiation outlet 9 is the same as the cross-section of the waveguide 20 .

[0093] like Figure 6 As shown, the lifting device 3 includes a frame 15 , on which a lifting motor 16 , a pulley 17 and a connecting rope 14 are installed.

[0094] Specifically, the connecting cable 14 is a steel cable.

[0095] The frame 15 is used to bear the weight of the load-bearing device and the spraying and microwave generating device. Optionally, the frame 15 has a square cross section.

[0096] The frame 15 has a crossbeam, and both ends of the crossbeam are connected to the top of the crawler vehicle 1 through pillars.

[0097] Optionally, the skeleton 15 is made of Q235 steel. Optionally, the cross-sectional side length of the skeleton 15 is 50 mm to 100 mm.

[0098] The lifting motor 16 is used to control the raising and lowering of the load-bearing device and the spraying and microwave generating device 5 .

[0099] Optionally, the lifting motor 16 adopts a YZ series or YZR series motor, and the power of the lifting motor 16 is 5kW.

[0100] A first pulley 171 , a second pulley 172 and a fixing device 175 are provided on the cross beam of the frame 15 .

[0101] A fixing plate 151 is connected between two pillars of the frame 15 , and the lifting motor 16 is mounted on the fixing plate 151 .

[0102] The roller axis of the first pulley 171 is perpendicular to the roller axis of the second pulley 172 .

[0103] The roller of the first pulley 171 is parallel to the output shaft of the lifting motor 16 .

[0104] The third pulley 173 and the fourth pulley 174 are respectively provided at the two ends of the top of the fixing rod 201 of the load-bearing device 2 .

[0105] Specifically, the second pulley 172 is disposed between the first pulley 171 and the fixing device 175. The third pulley 173 is located between the first pulley 171 and the second pulley 172 in the vertical direction, and the fourth pulley 174 is located between the second pulley 172 and the fixing device 175.

[0106] One end of the connecting rope 14 is connected to the output shaft of the lifting motor 16 , and is sequentially connected to the first pulley 171 , the third pulley 173 , the second pulley 172 , the fourth pulley 174 and the fixing device 175 .

[0107] Specifically, the fixing device 175 is a hook. The end of the connecting rope 14 is detachably connected to the fixing device 175 through a pressing sleeve ring. Specifically, the pressing sleeve ring is an aluminum alloy pressing sleeve ring.

[0108] Optionally, the pulley 17 is a fixed pulley with grooves.

[0109] Optionally, the pulley 17 is made of steel.

[0110] Optionally, the pulley 17 has a thickness of 50 mm to 150 mm, a diameter of 100 mm to 200 mm, and a groove width of 15 mm to 25 mm.

[0111] Optionally, the connecting rope 14 is made of carbon steel with a diameter of 8 mm to 15 mm.

[0112] Example 2 like Figure 7 As shown, a device for stripping a contaminated concrete surface, when used, comprises the following steps: Turn on the power; The crawler vehicle 1 is controlled to approach the concrete wall where the contaminated concrete layer is located; Use the lifting device 3 to raise the spraying and microwave generating device 5 to the target height through the load-bearing device 2; Add the absorbing coating through the feed port 12; The spraying device 7 is controlled by the spraying control device 11 to spray, and the spraying device 7 is turned off after the spraying of the target wall is completed; The microwave radiation power is set by the microwave control device 13 to control the microwave generator 6 to perform microwave heating, and the microwave generator 6 is turned off after the contaminated concrete layer is stripped off.

[0113] After the contaminated concrete layer is stripped, the spraying and microwave generating device 5 is lowered to the lowest position and the power is turned off.

[0114] Through the above steps, a method of spraying a microwave absorbing coating to assist microwave stripping of a contaminated concrete layer is realized, which improves the stripping efficiency of microwave stripping of a contaminated concrete layer and reduces manual operations. There are many ways to strip a contaminated concrete layer, and an optional implementation method is provided in this embodiment.

[0115] Unless otherwise specified, the device elements involved in the above embodiments are all conventional device elements, and the structural settings, working modes or control modes involved are all conventional settings, working modes or control modes in the art unless otherwise specified.

[0116] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Other modifications or equivalent substitutions made to the technical solution of the present invention by ordinary technicians in the field should be included in the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solution of the present invention.

Claims

1. A device for stripping the surface of contaminated concrete, characterized in that: The invention comprises a load-bearing device (2), a lifting device (3) and an operating device (4); a spraying and microwave generating device (5) is installed on the load-bearing device (2); the lifting device (3) is connected to the load-bearing device (2); a spraying control device (11) and a microwave control device (13) are provided in the operating device (4); a feed port (12) is provided on the operating device (4); a plurality of microwave radiation outlets (9) and a plurality of spraying ports (10) are provided at one end of the spraying and microwave generating device (5) facing away from the operating device (4); a microwave generating device (6) is provided in the microwave radiation outlet (9), and a spraying device (7) is provided in the spraying port (10); and an isolation layer (8) is provided between the spraying device (7) and the microwave generating device (6).

2. The device for stripping the surface of contaminated concrete according to claim 1, characterized in that: A crawler vehicle (1) is arranged at the bottom of the load-bearing device (2), and the load-bearing device (2), the lifting device (3) and the operating device (4) are all fixed on the crawler vehicle (1).

3. The device for stripping the surface of contaminated concrete according to claim 1, characterized in that: The lifting device (3) comprises a frame (15), the frame (15) having a crossbeam, pillars being connected at both ends of the crossbeam, a fixing plate (151) being connected between the two pillars, a lifting motor (16) being mounted on the fixing plate (151), and an output shaft of the lifting motor (16) being connected to the load-bearing device (2) via a connecting cable (14).

4. The device for stripping the surface of contaminated concrete according to claim 3, characterized in that: A first pulley (171), a second pulley (172) and a fixing device (175) are arranged on the crossbeam of the skeleton (15); a fixing rod (201) is arranged on the load-bearing device (2); a third pulley (173) and a fourth pulley (174) are arranged at two ends of the top of the fixing rod (201); one end of the connecting rope (14) is connected to the lifting motor (16), and the other end is connected to the first pulley (171), the third pulley (173), the second pulley (172), the fourth pulley (174) and the fixing device (175) in sequence.

5. The device for stripping the surface of contaminated concrete according to claim 4, characterized in that: The load-bearing device (2) comprises a platform, the top of which is connected to a vertical rectangular frame, and the fixing rod (201) is fixed to the rectangular frame.

6. The device for stripping the surface of contaminated concrete according to claim 4, characterized in that: The second pulley (172) is arranged between the first pulley (171) and the fixing device (175), the third pulley (173) is located vertically between the first pulley (171) and the second pulley (172), and the fourth pulley (174) is located between the second pulley (172) and the fixing device (175).

7. The device for stripping the surface of contaminated concrete according to claim 1, characterized in that: The microwave generating device (6) comprises a magnetron (18), a high-voltage transformer (19) and a waveguide (20); the magnetron (18) is arranged at the top of the waveguide (20); the high-voltage transformer (19) is arranged at the top of the waveguide (20); and the end of the waveguide (20) is inserted into a microwave radiation outlet (9).

8. The device for stripping the surface of contaminated concrete according to claim 1, characterized in that: A liquid channel (23) is provided in the center of the spraying device (7) along its long axis direction, and one end of the liquid channel (23) has a liquid spraying hole (25).

9. The device for stripping the surface of contaminated concrete according to claim 1, characterized in that: The operating device (4) has an air pump (27), one end of which is connected to the spraying device (7); and the spraying control device (11) is communicatively connected to the air pump (27).

10. A method for using a device for stripping a contaminated concrete surface according to any one of claims 1 to 9, characterized in that: The following steps are involved: Using a lifting device (3) to raise the spraying and microwave generating device (5) to a target height via a load-bearing device (2); Adding the microwave absorbing coating through the feed port (12); Controlling the spraying device (7) to spray by means of the spraying control device (11), and closing the spraying device (7) after spraying of the target wall is completed; The microwave generating device (6) is controlled by the microwave control device (13) to perform microwave heating, and the microwave generating device (6) is turned off after the contaminated concrete layer is stripped.

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