Electrical laminated wood veneer pass-through cleaning apparatus

Abstract

The application discloses an electrician laminated wood veneer passing type purification equipment, which comprises a bottom plate, a conveyor is fixedly connected to the top end of the bottom plate, a spraying part is arranged on the bottom plate, a recovery part is arranged on the spraying part, a cooking kettle is fixedly connected to the top end of the bottom plate and located at the front end of the conveyor, and a feeding part is arranged in the cooking kettle. In the application, the spraying part is integrated with a liquid storage tank, a heating element and a rotary atomization structure, different functional liquids can be independently controlled and heated, high-temperature atomization spraying can sufficiently soften veneer fibers, expand internal pore channels of wood, efficiently separate and remove extractives and metal impurities, comprehensively cover the surface and deep holes of the veneer, avoid local purification dead angles, create favorable conditions for subsequent adhesive penetration, and stably improve the electrical insulation strength of laminated wood products.

Description

Technical Field

[0001] This invention relates to the technical field of equipment for producing veneer raw materials for electrical laminated wood, specifically a through-type purification device for veneer used in electrical laminated wood. Background Technology

[0002] Electrical laminated wood veneer is a special type of wood insulation board made from high-quality birch, beech, and other woods. The process involves steaming, softening, and rotary cutting to produce thin veneers, which are then dried, impregnated with a special electrical insulating resin, and cured by hot pressing. It possesses excellent insulation, mechanical strength, and temperature resistance, and is widely used in the fabrication of insulating structural components for oil-immersed transformers, instrument transformers, and other electrical equipment. Purification of electrical laminated wood veneer refers to a specialized treatment that removes conductive impurities, acidic substances, and ash from the rotary-cut veneers to meet the stringent requirements of high-voltage electrical equipment for insulation, low partial discharge, and oil compatibility.

[0003] Existing veneer purification processes have certain limitations in terms of treatment solution temperature control and spray coverage. They are difficult to independently control the temperature for different purification processes, have a weak auxiliary effect on softening wood fibers and opening internal pores, and have limited effectiveness in removing deep-seated extracts and trace metal impurities from veneers. They are also prone to uneven treatment in certain areas, which can indirectly affect the penetration and bonding effect of subsequent adhesives and is not conducive to further optimization of the electrical insulation properties of laminated wood. Summary of the Invention

[0004] The purpose of this invention is to address the limitations of existing veneer purification processes in terms of temperature control of the treatment solution and spray coverage, the difficulty in independently controlling the temperature for different purification steps, the weak auxiliary effect on softening wood fibers and expanding internal pores, the limited removal effect on deep extractables and trace metal impurities in veneers, the tendency for uneven local treatment, which indirectly affects the penetration and bonding effect of subsequent adhesives and is not conducive to further optimization of the electrical insulation performance of laminated wood. This invention provides a through-type purification device for veneers used in electrical laminated wood.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a through-type purification device for veneer of electrical laminated wood, comprising: a base plate, a conveyor fixedly connected to the top of the base plate, a spraying component provided on the base plate, a recycling component provided on the spraying component, a cooking kettle fixedly connected to the top of the base plate, and the cooking kettle being located at the front end of the conveyor, and a feeding component being provided inside the cooking kettle; The spraying component includes a liquid storage tank fixedly connected to the top of the base plate, a heating element fixedly connected inside the liquid storage tank, a support rod fixedly connected to the top of the frame of the conveyor, a fixing plate fixedly connected to the top of the support rod, and a spray hood fixedly connected to one end of the fixing plate. A pump is fixedly connected to the side of the liquid storage tank. A liquid extraction pipe is fixedly connected to the input end of the pump and passes through one side of the liquid storage tank. A liquid outlet pipe is fixedly connected to the output end of the pump. An atomizing component two is installed inside the spray hood. The top end of the atomizing component two passes through the top end of the spray hood. One end of the liquid outlet pipe is connected to the atomizing component two. The second atomizing component includes a connecting pipe that is connected to the liquid outlet pipe. One end of the connecting pipe is connected to an installation cylinder. A rotating ring is embedded inside the installation cylinder and is rotatably connected to the installation cylinder. A synchronization pipe is fixedly connected inside the rotating ring. A spray box is fixedly connected to the bottom end of the synchronization pipe. A connecting hole is opened through the top of the spray box. A rotating rod is fixedly connected to the bottom inside the spray box. A rotating blade is fixedly connected to the outer surface of the rotating rod.

[0006] As a further embodiment of the present invention: four sets of support rods are provided, symmetrically distributed on both sides of the conveying roller axis, two sets of fixing plates are provided, and the top ends of the two sets of support rods on the same side are jointly fixedly connected to a fixing plate, and the spray hood is provided between the two sets of fixing plates.

[0007] As a further embodiment of the present invention: the connecting pipe and the mounting cylinder are vertically distributed, the rotating ring is flush with the inner wall of the mounting cylinder, the cross-section of the rotating ring is convex, the spray box is Y-shaped, and a cavity is provided inside the spray box. The connecting hole is connected to the cavity and the inside of the mounting cylinder. A spray hole is provided through the bottom end of the spray box, and multiple sets of spray holes are provided, evenly distributed at the bottom end of the spray box.

[0008] As a further embodiment of the present invention: the rotating blade is helical, and three sets of rotating blades are provided, evenly distributed on the outer surface of the rotating rod, and the top of the rotating blade is located below the connection port of the connecting pipe and the mounting cylinder.

[0009] As a further embodiment of the present invention: an atomizing component one is provided inside the liquid storage tank. One end of the atomizing component one penetrates through the liquid storage tank and is connected to the outer circular surface of the liquid outlet pipe. The atomizing component two has the same structure and size as the atomizing component one and is distributed in a mirror image. The mounting cylinder in the atomizing component two penetrates through the top of the spray hood and is fixedly connected to the spray hood. The connecting pipe in the atomizing component one penetrates through the side end of the liquid storage tank and is fixedly connected to the liquid storage tank.

[0010] As a further embodiment of the present invention: the recovery component includes a flow guide sleeve fixedly sleeved on the side of the liquid storage tank. The flow guide sleeve is an inverted cone shape, larger at the top and smaller at the bottom. The internal area of ​​the top of the flow guide sleeve is larger than that of the liquid storage tank and the spray hood.

[0011] As a further embodiment of the present invention: a condensing plate is fixedly connected to the inner side of the flow guide sleeve, the condensing plate penetrates the flow guide sleeve and extends to the outer side of the flow guide sleeve, multiple sets of condensing plates are provided, symmetrically distributed on the side end of the flow guide sleeve, and a clearance groove is provided through the side end of the condensing plate. The clearance groove is located at the high point inside the flow guide sleeve, and the bottom end of the clearance groove is flush with the inner side of the flow guide sleeve.

[0012] As a further embodiment of the present invention: a fan is fixedly connected inside the flow guide sleeve in the area where the clearance groove is located. Multiple sets of fans are provided and evenly distributed inside the flow guide sleeve. A return groove is opened through the side end of the liquid storage tank. The bottom end of the return groove is flush with the inside of the flow guide sleeve.

[0013] As a further embodiment of the present invention: a heating element is also fixedly connected inside the cooking pot, and an ultrasonic vibration plate is fixedly connected to the inner wall of the cooking pot. Two sets of ultrasonic vibration plates are provided and symmetrically distributed on both sides inside the cooking pot.

[0014] As a further embodiment of the present invention: the feeding component includes a mounting plate fixedly connected to the inner wall of the cooking vessel. Two sets of mounting plates are symmetrically distributed on both sides of the inside of the cooking vessel. Feeding rollers are arranged between the two sets of mounting plates. Each feeding roller passes through one of the two sets of mounting plates and is rotatably connected to them. Eight sets of feeding rollers are arranged, with four sets at the top and four at the bottom arranged in an isosceles trapezoidal shape, and the four sets at the top and bottom are mirror images of each other. The four sets of feeding rollers at the bottom pass through the cooking vessel and are rotatably connected to it. A transmission belt is fitted around the outside of each set of four feeding rollers. The transmission belt is frictionally connected to each of the four sets of isosceles trapezoidal feeding rollers. Multiple sets of transmission belts are provided. A motor is fixedly connected to the outside of one set of mounting plates. The output end of the motor is fixedly connected to one of the four sets of feeding rollers located above. A set of motors is also fixedly connected to the outside of the cooking vessel. The output end of the motor fixed to the outside of the cooking vessel is fixedly connected to one of the four sets of feeding rollers located below. Guide roller 1 and guide roller 2 are arranged between the two sets of mounting plates. Guide roller 1 and guide roller 2 pass through the two sets of mounting plates and are rotatably connected to the two sets of mounting plates. Guide roller 1 and guide roller 2 are arranged in front and behind the eight sets of feeding rollers. Guide roller 1 and guide roller 2 abut against the transmission belts on the outside of the four sets of feeding rollers arranged in an isosceles trapezoidal shape located below. The feeding gap of the four sets of feeding rollers arranged in an isosceles trapezoidal shape above and below is higher than that of the conveyor.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. In this invention, the integrated liquid storage tank, heating element and rotating atomization structure of the spray component can independently control the temperature and heat different functional liquids. The high-temperature atomization spray can fully soften the veneer fibers, expand the internal pore channels of the wood, efficiently extract and remove extracts and metal impurities, and fully cover the veneer surface and deep pores, avoiding local purification dead corners, creating favorable conditions for subsequent adhesive penetration, and steadily improving the insulation strength of the laminated wood product. 2. In this invention, the spray area is enclosed by a large-diameter inverted conical guide sleeve through the recycling component. Combined with directional airflow from a fan and liquefaction treatment by a condenser plate, the overflowing atomized waste liquid can be efficiently collected. After being guided and collected, it is returned to the return tank for reuse, which greatly reduces the consumption of medicine and water resources, blocks the diffusion of impurities and mist, and prevents secondary adhesion and contamination of the single board by metal ions. It is suitable for long-term continuous industrial production. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the transmission mechanism in this invention; Figure 3 This is a schematic diagram of the structure of the spray component in this invention; Figure 4 This is a schematic diagram of the atomizing component in this invention; Figure 5 In this invention Figure 4 A schematic diagram of the structure at point A; Figure 6 This is a schematic diagram of the spray box structure in this invention; Figure 7 This is a schematic diagram of the structure of the recyclable component in this invention; Figure 8 This is a cross-sectional view of the recyclable component in this invention; Figure 9 In this invention Figure 8 A schematic diagram of the structure at point B; Figure 10 This is a schematic diagram of the internal structure of the cooking pot in this invention.

[0017] In the diagram: 1. Base plate; 2. Conveyor; 3. Sprayer component; 31. Storage tank; 32. Support rod; 33. Fixing plate; 34. Spray hood; 35. Liquid extraction pipe; 36. Pump; 37. Liquid outlet pipe; 38. Atomizing component one; 39. Atomizing component two; 391. Connecting pipe; 392. Mounting cylinder; 393. Rotating ring; 394. Synchronization pipe; 395. Spray box; 396. Connecting hole; 397. Rotating rod; 398. Rotating blade; 310. Heating element; 4. Recovery component; 41. Guide sleeve; 42. Condensing plate; 43. Clearance groove; 44. Fan; 45. Return groove; 5. Cooking kettle; 51. Ultrasonic vibrating plate; 6. Feeding component; 61. Mounting plate; 62. Feeding roller; 63. Transmission belt; 64. Motor; 65. Guide roller one; 66. Guide roller two. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this invention, it should be noted that unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," and "set up" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. The following describes embodiments of the invention based on its overall structure.

[0020] Reference Figures 1 to 2In this embodiment of the invention, a through-type purification device for veneer used in electrical laminated wood includes: a base plate 1, with a conveyor 2 fixedly connected to the top of the base plate 1. The conveyor 2 is a roller conveyor, mainly composed of a frame, conveying rollers, a drive assembly, and guide and limiting components. It relies on a drive mechanism to drive the rollers to rotate synchronously, using the frictional force of the roller rotation to carry and convey materials, achieving stable and continuous conveying of workpieces. Spraying elements 3 are provided on the base plate 1, and recovery elements 4 are provided on the spraying elements 3. Three sets of spraying elements 3 and recovery elements 4 are provided, evenly distributed along the conveying direction of the conveyor 2. The three sets of spraying elements 3 spray clean water, ion exchange resin, and deionized water respectively onto the wood boards conveyed on the conveyor 2, respectively performing secondary steaming treatment, metal ion removal, and cleaning treatment on the wood boards. A cooking vessel 5 is fixedly connected to the end of the conveyor 2, and the cooking vessel 5 is located at the front end of the conveyor 2. A feeding device 6 is installed inside the cooking vessel 5. The wood boards are first pre-cooked in the cooking vessel 5 to remove impurities such as organic acids, oil extracts, and some soluble metal ions from the wood, thereby initially opening the internal pore channels of the wood and reducing the content of polar groups in the wood fibers. After pre-cooking, the wood boards are conveyed to the conveyor 2 through the feeding device 6 in the cooking vessel 5. After moving through the conveyor 2, they enter the area where the spray device 3 is located. Three sets of spray devices 3 spray clean water, ion exchange resin, and deionized water respectively, to perform supplementary cooking treatment, deep removal of metal ions, and final cleaning treatment on the wood boards in sequence, so as to further improve the purification effect and ensure the electrical insulation performance of the subsequent laminated wood products.

[0021] Reference Figures 3 to 6The spray unit 3 includes a storage tank 31 fixedly connected to the top of the base plate 1. The storage tanks 31 in the three sets of spray units 3 respectively store clean water, prepared ion exchange working solution, and deionized water. A heating element 310 is fixedly connected inside the storage tank 31, with the energized end of the heating element 310 penetrating through the storage tank 31 and extending to the outside of the storage tank 31. A support rod 32 is fixedly connected to the top of the frame of the conveyor 2. A fixing plate 33 is fixedly connected to the top of the support rod 32. Four sets of support rods 32 are symmetrically distributed on both sides of the conveyor roller axis. Two sets of fixing plates 33 are provided. The tops of the two sets of support rods 32 on the same side are jointly fixedly connected to one set of fixing plates 33. A spray hood 34 is fixedly connected to one end of the fixing plate 33, and the spray hood 34 is positioned between the two sets of fixing plates 33. A pump 36 is fixedly connected to the side of the liquid tank 31. A suction pipe 35 is fixedly connected to the input end of the pump 36, and the suction pipe 35 passes through one side of the liquid tank 31. An outlet pipe 37 is fixedly connected to the output end of the pump 36. An atomizing component 38 is installed inside the liquid tank 31. One end of the atomizing component 38 passes through the liquid tank 31 and is connected to the outer surface of the outlet pipe 37. An atomizing component 39 is installed inside the spray hood 34. The top end of the atomizing component 39 passes through the top end of the spray hood 34. One end of the outlet pipe 37 is connected to the atomizing component 39. The atomizing component 39 includes a connecting pipe 391 that is connected to the outlet pipe 37. One end of the connecting pipe 391 is connected to an installation cylinder 392. The connecting pipe 391 and the installation cylinder 392 are vertically distributed. A rotating part is embedded inside the installation cylinder 392. A rotating ring 393 is rotatably connected to a mounting cylinder 392 and flush with the inner wall of the mounting cylinder 392. The rotating ring 393 has a convex cross-section. A synchronization pipe 394 is fixedly connected to the inner side of the rotating ring 393. A spray box 395 is fixedly connected to the bottom end of the synchronization pipe 394. The spray box 395 is Y-shaped and has a cavity inside. A connecting hole 396 is opened through the top of the spray box 395, which communicates with the cavity and the inside of the mounting cylinder 392. Spray holes are opened through the bottom of the spray box 395, and multiple sets of spray holes are evenly distributed at the bottom of the spray box 395. A rotating rod 397 is fixedly connected to the bottom of the inside of the spray box 395. A rotating blade 398 is fixedly connected to the outer surface of the rotating rod 397. The 8 is spiral-shaped, with three sets of rotating blades 398 evenly distributed on the outer surface of the rotating rod 397. The top of the rotating blades 398 is located below the connection port of the connecting pipe 391 and the mounting cylinder 392. The atomizing component 2 39 and the atomizing component 1 38 have the same structure and size, and are mirror images of each other. The mounting cylinder 392 in the atomizing component 2 39 passes through the top of the spray hood 34 and is fixedly connected to the spray hood 34. The connecting pipe 391 in the atomizing component 1 38 passes through the side of the liquid storage tank 31 and is fixedly connected to the liquid storage tank 31. The spray component 3, which stores clean water, performs a secondary steaming treatment on the wood board, which can further soften the wood fibers, expand the pore gaps, and promote the full release of organic acids, oil extracts, and trace metal ions remaining in the deep pores of the wood after pre-steaming.Simultaneously, it replenishes the heat from the steaming process and maintains a uniform humid and hot state in the boards, avoiding uneven treatment caused by fluctuations in pre-steaming temperature or time. This ensures that the internal penetration channels of the wood are fully opened and kept clean and open, creating a uniform and stable medium environment for subsequent deep treatment with ion exchangers and deionized water. This significantly improves the efficiency of metal ion removal and the final cleaning effect, enhancing the electrical insulation properties and structural consistency of the laminated wood products.

[0022] The above solution, equipped with a liquid storage tank 31, heating element 310, pump 36, atomizing component 1 38 and atomizing component 2 39, allows for independent storage and heating of liquids with different functions. The liquid is stably transported by the liquid extraction pipe 35 and the liquid outlet pipe 37. The rotating blade 398 is driven by the liquid flow to achieve multi-angle atomization spraying, simultaneously completing the veneer cooking, metal ion removal and cleaning processes. The liquid coverage is comprehensive and uniform, effectively opening up the internal channels of the wood and improving the overall purification quality of electrical veneer.

[0023] Reference Figures 7 to 9 The recovery component 4 includes a guide sleeve 41 fixedly fitted onto the side of the liquid storage tank 31. The guide sleeve 41 is an inverted cone shape, wider at the top and narrower at the bottom. The internal area of ​​the top of the guide sleeve 41 is larger than that of the liquid storage tank 31 and the spray hood 34. A condenser plate 42 is fixedly connected to the inner side of the guide sleeve 41. The condenser plate 42 penetrates the guide sleeve 41 and extends to the outer side of the guide sleeve 41. Multiple sets of condenser plates 42 are provided, symmetrically distributed on the side of the guide sleeve 41. A clearance groove 43 is provided through the side of the condenser plate 42. The clearance groove 43 is located at the higher point inside the guide sleeve 41, and the bottom of the clearance groove 43 is flush with the inner side of the guide sleeve 41. A fan 44 is fixedly connected inside the guide sleeve 41 in the area where the clearance groove 43 is located. Multiple sets of fans 44 are provided, evenly distributed inside the guide sleeve 41. On the side, a return channel 45 is provided through the end of the liquid storage tank 31. The bottom of the return channel 45 is flush with the inner side of the guide sleeve 41. When the atomized liquid generated by the spraying component 3 sprays onto the wooden board of the conveyor 2, it will diffuse outward. Since the inner area of ​​the top of the guide sleeve 41 is larger than that of the liquid storage tank 31 and the spray hood 34, the diffused atomized liquid will be guided by the wind force generated by the fan 44 before it leaves the area where the guide sleeve 41 is located. It will move to the inner side of the guide sleeve 41 until the atomized liquid comes into contact with the surface of the condenser plate 42, causing the atomized liquid to condense into liquid droplets. Since the guide sleeve 41 is an inverted cone shape, the condenser plate 42 is also tilted, causing the liquid droplets on the condenser plate 42 to flow towards the liquid storage tank 31 and finally enter the liquid storage tank 31 through the return channel 45.

[0024] By adopting the above solution, the flow guide sleeve 41, condenser plate 42, fan 44 and return tank 45 are set up to cooperate with each other, so that the scattered atomized waste liquid can be collected and condensed for recycling, realizing the recycling of the treated liquid, reducing the unnecessary loss of medicine and material waste, avoiding secondary pollution caused by leakage of atomized impurities, optimizing the equipment operating environment, reducing the operating cost of continuous production, and enhancing the energy-saving and environmental protection performance of the equipment.

[0025] Reference Figure 10 The cooking vessel 5 is also fixedly connected to a heating element 310. An ultrasonic vibrating plate 51 is fixedly connected to the inner wall of the cooking vessel 5. Two sets of ultrasonic vibrating plates 51 are symmetrically distributed on both sides inside the cooking vessel 5. The ultrasonic vibrating plate 51 is a cleaning device composed of a shell, a transducer, and a generator. Its principle is that the generator outputs a high-frequency electrical signal, and the transducer converts it into high-frequency mechanical vibration through the piezoelectric effect, generating a cavitation effect in the liquid. The bubbles collapse to generate shock waves, purifying the wood board. The feeding component 6 includes a fixed connection... Mounting plates 61 are attached to the inner wall of the cooking vessel 5. Two sets of mounting plates 61 are symmetrically distributed on both sides of the interior of the cooking vessel 5. Feeding rollers 62 are positioned between the two sets of mounting plates 61. Each feeding roller 62 passes through one of the two sets of mounting plates 61 and is rotatably connected to them. There are eight sets of feeding rollers 62, four sets at the top and four sets at the bottom, arranged in an isosceles trapezoidal shape. The four sets of feeding rollers at the bottom are mirror images of each other. The four sets of feeding rollers at the bottom pass through the cooking vessel 5 and are rotatably connected to it. Each set of four feeding rollers is fitted with a sleeve on its outer side. A transmission belt 63 is provided, which is frictionally connected to four sets of feeding rollers 62 arranged in an isosceles trapezoidal shape. Multiple sets of transmission belts 63 are provided. A motor 64 is fixedly connected to the outside of a mounting plate 61. The output end of the motor 64 is fixedly connected to one set of feeding rollers 62 in the upper group. Similarly, a motor 64 is fixedly connected to the outside of the cooking vessel 5. The output end of the motor 64 fixedly connected to the outside of the cooking vessel 5 is fixedly connected to one set of feeding rollers 62 in the lower group. Guide roller 1 65 and guide roller 2 66 are provided between the mounting plates 61. Guide roller 1 65 and guide roller 2 66 pass through the two mounting plates 61 respectively and are rotatably connected to the two mounting plates 61. Guide roller 1 65 and guide roller 2 66 are located in front of and behind the eight sets of feeding rollers 62. Guide roller 1 65 and guide roller 2 66 respectively abut against the transmission belt 63 on the outside of the four sets of feeding rollers 62 arranged in an isosceles trapezoidal shape located below. The feeding gap of the four sets of feeding rollers 62 arranged in an isosceles trapezoidal shape above and below is higher than that of the conveyor 2.

[0026] The above-mentioned scheme, by setting heating elements 310 and two sets of symmetrically distributed ultrasonic vibrating plates 51 inside the cooking vessel 5, can achieve efficient pre-cooking treatment of wood boards. The heating elements 310 can maintain a constant temperature for the liquid inside the cooking vessel 5, creating a stable high-temperature and humid environment, which ensures the precipitation of impurities and the softening of wood fibers. The high-frequency mechanical vibration generated by the two sets of symmetrically distributed ultrasonic vibrating plates 51 creates a cavitation effect. The shock waves generated by the collapse of bubbles can quickly peel off impurities attached to the surface of the wood boards, while impacting the internal pores of the wood, promoting the rapid precipitation of organic acids, oil extracts, and some soluble metal ions. Combined with the high-temperature cooking effect, this significantly improves the pre-cooking efficiency. The material effectively removes impurities, initially opening the internal pores of the wood and reducing the content of polar groups in the wood fibers. This lays a solid foundation for the subsequent conveying by the conveyor 2 and the deep purification by the spraying component 3. The feeding component 6 can feed the flexible board into the space between the upper and lower transmission belts 63 on the outer side of the four sets of isosceles trapezoidal feeding rollers 62. That is, the flexible board is fed into the space between two sets of isosceles trapezoids that are symmetrically distributed, bent into a U-shape and immersed in the cooking kettle 5. As the transmission belt 63 rotates, it pushes the board that has been cooked in the cooking kettle 5 to move onto the conveyor 2, achieving a seamless connection between pre-cooking and subsequent purification processes, improving the overall automation level of the equipment, and adapting to the needs of continuous production.

[0027] The working principle of this invention is as follows: When the equipment is working, the electrical laminated wood veneer to be purified is first fed into the cooking kettle 5 through the feeding component 6. The feeding component 6 feeds the flexible board between the upper and lower transmission belts 63 distributed on the outer side of the four sets of feeding rollers 62 arranged in an isosceles trapezoidal shape. That is, the flexible board is fed between two sets of symmetrically distributed isosceles trapezoids, bent into a U-shape and immersed in the cooking kettle 5. The heating element 310 and ultrasonic vibrating plate 51 inside the cooking kettle 5 are activated. The heating element 310 heats the liquid in the cooking kettle 5 at a constant temperature, creating a high-temperature and humid environment. The generator of the ultrasonic vibrating plate 51 outputs a high-frequency electrical signal, which is converted into high-frequency mechanical vibration by the transducer through the piezoelectric effect, generating a cavitation effect in the liquid. The shock wave generated by the collapse of bubbles... The combined effect of high temperature rapidly removes impurities from the surface of the wood panels, while simultaneously promoting the release of organic acids, oil extracts, and some soluble metal ions from within the panels. This initially opens the internal pores of the wood and reduces the content of polar groups in the wood fibers, completing the pre-cooking pretreatment of the wood panels. After pre-cooking, the rotating conveyor belt 63 moves the panels cooked in the cooking kettle 5 onto the conveyor 2. The conveyor 2 uses its internal drive components to drive the conveyor rollers to rotate at a constant speed, utilizing the friction of the roller surface to move the wood panels horizontally in a uniform linear motion, achieving uninterrupted continuous feeding and ensuring the orderly connection of the entire purification process. Three sets of spray elements 3 are arranged sequentially along the single-pane conveying direction, corresponding to the three core processes of cooking pretreatment, metal ion removal, and deep cleaning, respectively. In the core process, the three sets of storage tanks 31 are pre-filled with clean water, ion exchange working solution diluted with water according to the specified ratio, and qualified deionized water, respectively. After the equipment is started, the heating elements 310 inside the storage tanks 31 are simultaneously powered on to heat the liquid stored in the tanks at a constant temperature, thereby improving the activity and permeability of the liquid. The high-temperature and humid environment replaces the traditional steam cooking process. In the liquid transportation process, the pumps 36 of each set operate synchronously, drawing the heated liquid inside the storage tanks 31 through the liquid extraction pipe 35, and then transporting it to the atomizing components 38 and 39 through the liquid outlet pipes 37, respectively. After the liquid enters the mounting cylinder 392, it impacts the spiral rotating blades 398. Under the action of the liquid flow impact force, the rotating blades 398 drive the rotating rod 397 and the synchronizing pipe. Rotating synchronously with the rotating ring 393, the Y-shaped spray box 395 rotates accordingly. The heated liquid enters the cavity of the spray box 395 through the connecting hole 396, and is finally sprayed evenly from multiple sets of spray holes at the bottom in an atomized form. The first set of spray elements 3 sprays high-temperature water to perform wet heat steaming on the moving veneer, softening the wood fiber structure, expanding the gaps in the wood pores, and opening the internal micro-permeability channels, promoting the full release of naturally contained organic acids, oil extracts, and deep metal ions from the veneer. The second set of spray elements 3 sprays high-temperature ion exchange working liquid. Through ion replacement and adsorption reactions, combined with the high-pressure atomization flushing effect, it thoroughly removes calcium, magnesium, iron, and other metal ions precipitated on the surface and inside the pores of the veneer, reducing the residue of conductive impurities from the source.The third set of spray elements 3 sprays high-temperature deionized water to thoroughly rinse away residual chemical impurities and displacement precipitates on the surface of the veneer, completing the final purification and cleaning. All equipment contact parts are made of rust-resistant materials to avoid contact between easily rusting metal components and the veneer, preventing secondary contamination from metal ions. Throughout the spray purification process, each set of spray elements 3 is equipped with a recovery element 4 on its outer side. An inverted conical guide sleeve 41 forms a closed, converging space that completely surrounds the spray area, preventing the atomized liquid from scattering irregularly. A fan 44 continuously operates to generate directional airflow, forcing the outward-spreading atomized droplets... Guided to the inside of the guide sleeve 41, the dispersed atomized mist quickly liquefies and condenses into liquid water droplets upon contact with the low-temperature condensing plate 42. The inclined condensing plate 42, relying on gravity, allows the condensed water droplets to flow smoothly downwards along the plate surface, eventually converging at the bottom of the guide sleeve 41. From there, they flow back to the corresponding storage tank 31 via the return channel 45, achieving the recycling and reuse of the chemical solution and water resources. The veneer, after complete spray purification, is continuously conveyed out by the conveyor 2 to enter subsequent drying, impregnation, and lamination processes. All mechanisms of the entire equipment work in synergy, requiring no intermittent manual intervention. The entire process is automated and continuous, stably completing the integrated purification treatment of electrical laminated wood veneer, including steaming activation, deionization, and cleaning. This effectively reduces the number of closed air chambers in the finished laminated wood, preventing later contamination of transformer oil, and comprehensively improving the electrical insulation performance and structural stability of the board, meeting the stringent standards of high-grade transformers. Through the integrated liquid storage tank 31, heating element 310, and rotating atomization structure of the spray component 3, different functional liquids can be independently heated and temperature-controlled. High-temperature atomized spraying can fully soften the veneer fibers, expand the internal pore channels of the wood, and efficiently extract and remove extractables. Metal impurities are thoroughly coated on the surface of the veneer and deep within the pores, avoiding blind spots in localized purification and creating favorable conditions for subsequent adhesive penetration. This stabilizes and enhances the insulation strength of the laminated wood product. The large-diameter inverted conical guide sleeve 41, used in the recycling component 4 to enclose the spray area, combined with directional airflow from the fan 44 and liquefaction treatment by the condenser plate 42, efficiently collects overflowing atomized waste liquid. After being guided and collected, it is returned to the return tank 45 for reuse, significantly reducing the consumption of chemicals and water resources. This also prevents the diffusion of impurity mist and secondary adhesion of metal ions to the veneer, making it suitable for long-term continuous industrial production.

[0028] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A through-type purification device for electrical laminated wood veneer, comprising: The base plate (1) is characterized in that a conveyor (2) is fixedly connected to the top of the base plate (1), a spraying component (3) is provided on the base plate (1), a recycling component (4) is provided on the spraying component (3), a cooking pot (5) is fixedly connected to the top of the base plate (1), and the cooking pot (5) is located at the front end of the conveyor (2), and a feeding component (6) is provided inside the cooking pot (5). The spray component (3) includes a liquid storage tank (31) fixedly connected to the top of the base plate (1), a heating element (310) fixedly connected inside the liquid storage tank (31), a support rod (32) fixedly connected to the top of the frame of the conveyor (2), a fixing plate (33) fixedly connected to the top of the support rod (32), and a spray hood (34) fixedly connected to one end of the fixing plate (33). A pump (36) is fixedly connected to the side of the liquid storage tank (31). A liquid extraction pipe (35) is fixedly connected to the input end of the pump (36), and the liquid extraction pipe (35) passes through one side of the liquid storage tank (31). A liquid outlet pipe (37) is fixedly connected to the output end of the pump (36). An atomizing component two (39) is provided inside the spray hood (34). The top end of the atomizing component two (39) passes through the top end of the spray hood (34). One end of the liquid outlet pipe (37) is connected to the atomizing component two (39). The atomizing component 2 (39) includes a connecting pipe (391) that is connected to the liquid outlet pipe (37). One end of the connecting pipe (391) is connected to an installation cylinder (392). A rotating ring (393) is embedded in the inner side of the installation cylinder (392), and the rotating ring (393) is rotatably connected to the installation cylinder (392). A synchronization pipe (394) is fixedly connected to the inner side of the rotating ring (393). A spray box (395) is fixedly connected to the bottom end of the synchronization pipe (394). A connecting hole (396) is opened through the top of the spray box (395). A rotating rod (397) is fixedly connected to the bottom inside the spray box (395). A rotating blade (398) is fixedly connected to the outer surface of the rotating rod (397).

2. The through-type purification equipment for electrical laminated wood veneer as described in claim 1, characterized in that, The support rods (32) are provided in four sets, symmetrically distributed on both sides of the conveyor roller axis. The fixing plates (33) are provided in two sets. The tops of the two sets of support rods (32) on the same side are fixedly connected to a fixing plate (33). The spray hood (34) is provided between the two sets of fixing plates (33).

3. The veneer pass-through purification device for electrical laminated wood according to claim 2, characterized in that, The connecting pipe (391) and the mounting cylinder (392) are vertically distributed. The rotating ring (393) is flush with the inner wall of the mounting cylinder (392). The rotating ring (393) has a convex cross-section. The spray box (395) is Y-shaped and has a cavity inside. The connecting hole (396) is connected to the cavity and the inside of the mounting cylinder (392). The bottom end of the spray box (395) has a through spray hole, and multiple sets of spray holes are evenly distributed at the bottom end of the spray box (395).

4. A pass-through purification device for electrical laminated wood veneer as described in claim 3, characterized in that, The rotating blade (398) is spiral-shaped. There are three sets of rotating blades (398) evenly distributed on the outer surface of the rotating rod (397), and the top of the rotating blade (398) is located below the connection port of the connecting pipe (391) and the mounting cylinder (392).

5. A pass-through purification device for electrical laminated wood veneer as described in claim 4, characterized in that, The liquid storage tank (31) is provided with an atomizing component one (38). One end of the atomizing component one (38) penetrates through the liquid storage tank (31) and is connected to the outer circular surface of the liquid outlet pipe (37). The atomizing component two (39) and the atomizing component one (38) have the same structure and size and are distributed in a mirror image. The mounting cylinder (392) in the atomizing component two (39) penetrates through the top of the spray hood (34) and is fixedly connected to the spray hood (34). The connecting pipe (391) in the atomizing component one (38) penetrates through the side end of the liquid storage tank (31) and is fixedly connected to the liquid storage tank (31).

6. A through-type purification device for electrical laminated wood veneer as described in claim 5, characterized in that, The recovery component (4) includes a flow guide sleeve (41) fixedly sleeved on the side of the liquid storage tank (31). The flow guide sleeve (41) is an inverted cone shape with a larger top and a smaller bottom. The internal area of ​​the top of the flow guide sleeve (41) is larger than that of the liquid storage tank (31) and the spray hood (34).

7. A through-type purification device for electrical laminated wood veneer as described in claim 6, characterized in that, A condenser plate (42) is fixedly connected to the inner side of the flow guide sleeve (41). The condenser plate (42) penetrates the flow guide sleeve (41) and extends to the outer side of the flow guide sleeve (41). Multiple sets of condenser plates (42) are provided and symmetrically distributed on the side end of the flow guide sleeve (41). A clearance groove (43) is provided through the side end of the condenser plate (42). The clearance groove (43) is located at the high point inside the flow guide sleeve (41), and the bottom end of the clearance groove (43) is flush with the inner side of the flow guide sleeve (41).

8. A through-type purification device for electrical laminated wood veneer as described in claim 7, characterized in that, A fan (44) is fixedly connected inside the flow guide sleeve (41) in the area where the clearance groove (43) is located. Multiple sets of fans (44) are provided and evenly distributed inside the flow guide sleeve (41). A return groove (45) is opened through the side end of the liquid storage tank (31). The bottom end of the return groove (45) is flush with the inside of the flow guide sleeve (41).

9. A pass-through purification device for electrical laminated wood veneer as described in claim 8, characterized in that, The cooking pot (5) is also fixedly connected with a heating element (310), and the inner wall of the cooking pot (5) is fixedly connected with an ultrasonic vibration plate (51). There are two sets of ultrasonic vibration plates (51), which are symmetrically distributed on both sides inside the cooking pot (5).

10. A through-type purification device for electrical laminated wood veneer as described in claim 9, characterized in that, The feeding component (6) includes a mounting plate (61) fixedly connected to the inner wall of the cooking vessel (5). Two sets of mounting plates (61) are provided, symmetrically distributed on both sides of the inside of the cooking vessel (5). A feeding roller (62) is provided between the two sets of mounting plates (61). The two sides of the feeding roller (62) pass through the two sets of mounting plates (61) respectively and are rotatably connected to the mounting plates (61). Eight sets of feeding rollers (62) are provided, with four sets at the top and four sets at the bottom arranged in an isosceles trapezoidal shape. The feeding rollers (62) are mirror-distributed. The four sets of feeding rollers (62) located at the bottom penetrate the cooking vessel (5) and are rotatably connected to the cooking vessel (5). A transmission belt (63) is sleeved on the outside of each set of four feeding rollers (62). The transmission belt (63) is respectively connected to the four sets of feeding rollers (62) distributed in an isosceles trapezoidal shape through friction transmission. There are multiple sets of transmission belts (63). A motor (64) is fixedly connected to the outside of a mounting plate (61). The output end of the motor (64) is connected to the outside of the mounting plate (61). One of the four sets of feeding rollers (62) at the top is fixedly connected. A set of motors (64) is also fixedly connected to the outside of the cooking vessel (5). The output end of the motor (64) fixed to the outside of the cooking vessel (5) is fixedly connected to one of the four sets of feeding rollers (62) at the bottom. A guide roller one (65) and a guide roller two (66) are provided between the two sets of mounting plates (61). The guide roller one (65) and the guide roller two (66) 66) Passing through two sets of mounting plates (61) respectively, and rotatably connected to the two sets of mounting plates (61), and guide roller one (65) and guide roller two (66) are set in front and behind the eight sets of feeding rollers (62). Guide roller one (65) and guide roller two (66) respectively abut against the transmission belt (63) on the outside of the four sets of feeding rollers (62) arranged in an isosceles trapezoidal shape below. The feeding gap of the four sets of feeding rollers (62) arranged in an isosceles trapezoidal shape above and below is higher than that of the conveyor (2).

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