Boron carbide dust collection and recycling device

Abstract

The invention relates to a boron carbide dust collecting and recycling device, wherein the bottom of a sealed dust collecting bin is connected to a waste liquid collecting pool through a waste liquid collecting hole, a water mist dust mixing recovery cover is connected to a water mist dust mixing recovery pipe through a waterproof fan, the bottom of the water mist dust mixing recovery pipe is connected to a bottom aeration dust removal pool installed in a recovery box, the upper part of the bottom aeration dust removal pool is connected to a pure water purifier through a purification pumping pipe equipped with a pumping pump, the output end of the pure water purifier is connected to a pure water storage box, the pure water storage box is connected to a high-pressure atomizing water nozzle installed on the inner wall of the dust collecting bin through a pipeline equipped with a high-pressure pumping pump, the bottom of the waste liquid collecting pool is connected to the top of the bottom aeration dust collecting pool through a pipeline with an electromagnetic valve; the high-pressure atomizing water nozzle is used to realize water atomization in the sealed dust collecting bin during the air extraction and dust removal operation, so as to avoid dust escape and realize efficient recovery.

Description

Technical Field

[0001] The present invention belongs to the technical field of environmental protection and resource recycling, and specifically relates to a dust recovery device used in the processing of boron carbide products, and more particularly to a boron carbide dust collection and recycling device. Background Art

[0002] Boron carbide is an important ceramic material with extremely high hardness and thermal stability, resulting in a wide range of applications. It can be used to manufacture components that operate at high temperatures, such as engine nozzles, turbine blades, and ceramic connecting rods, as well as high-hardness and high-strength cutting tools such as drills, milling cutters, and cutting tools. After boron carbide ceramic products are produced through various methods, they require finishing, drilling, milling, and edge grinding to improve product regularity and ensure precise installation in their intended locations. These processes typically utilize superhard tools such as diamond, generating significant dust.

[0003] Boron carbide dust is irritating and toxic, so protective measures are required when in contact, especially to avoid direct skin contact and dust inhalation. In order to reduce dust during the processing of boron carbide ceramic products, the traditional method is for operators to wear gas masks. This method leads to obstructions during the operation and reduces efficiency. Alternatively, the operation method of spraying water to reduce dust while processing is adopted. However, due to the constant changes in the processing position, a water spraying device is required to cooperate with the tracking operation. It is difficult to achieve accurate tracking and water addition operations on the processing surface, resulting in pollution after dust escape. In addition, in order to achieve full coverage of the working surface, the traditional method of spraying water to reduce dust requires a large amount of water, which seriously wastes water resources.

[0004] Therefore, a boron carbide dust collection and recycling device with a simple structure, easy operation, non-contact processing operation, closed dust reduction, high dust recovery efficiency, energy saving and environmental protection is provided, which can recycle and reuse boron carbide dust, save water resources, realize the use of recycled water, and is safe and efficient. The device has broad market prospects. Summary of the Invention

[0005] In response to the deficiencies in the prior art, the present invention provides a boron carbide dust collection and recycling device that has a simple structure, is easy to operate, can realize non-contact processing operations, and simultaneously achieves closed dust reduction, high dust recovery efficiency, energy saving and environmental protection, can recycle and reuse boron carbide dust, save water resources, realize the use of recycled water, and is safe and efficient, so as to overcome the defects in the prior art.

[0006] The technical solution of the present invention is achieved as follows: a boron carbide dust collection and recycling device comprises a recycling box and a product processing box installed above the recycling box, wherein a sealed dust collecting bin with a sealed opening and closing door is installed in the product processing box, one side of the sealed dust collecting bin is connected to the outside through an air inlet pipe, the other side of the sealed dust collecting bin is connected to a water mist dust mixing recovery cover through a dust collecting hole, the bottom of the sealed dust collecting bin is connected to a waste liquid collection pool through a waste liquid collection hole, the water mist dust mixing recovery cover is connected to a water mist dust mixing recovery pipe through a waterproof fan, the bottom of the water mist dust mixing recovery pipe is connected to a bottom aeration dust removal pool installed in the recycling box, the upper part of the bottom aeration dust removal pool is connected to a pure water purifier through a purification pumping pipe equipped with a water pump, the output end of the pure water purifier is connected to a pure water storage tank, the pure water storage tank is connected to a high-pressure atomizing water nozzle installed on the inner wall of the dust collecting bin through a pipeline equipped with a high-pressure water pump, and the bottom of the waste liquid collection pool is connected to the top of the bottom aeration dust collection pool through a pipeline equipped with a solenoid valve.

[0007] Furthermore, the sealed dust collecting bin is composed of a top plate, an air inlet plate, an air outlet plate and a bottom support plate. The air inlet duct is fixedly installed between the air inlet plate and the product processing box. One side of the air inlet duct is connected to the sealed dust collecting bin, and the other side of the air inlet duct is connected to the outside world. The dust collecting hole is opened on the air outlet plate, and the air outlet plate is installed tilted from bottom to top toward the air inlet plate position. The waste liquid collection hole is opened on the bottom support plate. A partition is provided between the product processing box and the recycling box. The waste liquid collection tank is fixedly installed between the top of the partition and the bottom wall of the bottom support plate.

[0008] Furthermore, the sealed opening and closing door is sealed by cooperating with the sealed dust collecting bin through an opening and closing shaft installed on the product processing box. An observation window is provided on the sealed opening and closing door. A controller is provided on the product processing box on one side of the sealed dust collecting bin. The controller is connected to the dust monitoring sensor installed in the sealed dust collecting bin, and an opening and closing door is provided on the recycling box.

[0009] Furthermore, the water mist and dust mixing recovery hood is a funnel-shaped square hood structure, the square opening end of the water mist and dust mixing recovery hood is matched with the height and width of the sealed dust collecting bin, and the waterproof fan is installed at the square closing end of the water mist and dust mixing recovery hood, and the waterproof fan is connected to the water mist and dust mixing recovery pipe through the air pressure bin.

[0010] Furthermore, the water mist and dust mixing recovery pipe is a hard plastic pipe, the bottom of which is connected to a telescopic hose installed in the recovery box, and the telescopic hose is connected to the bottom of one side of the bottom aeration dust removal tank.

[0011] Furthermore, a longitudinal filter plate is provided in the bottom aeration dust removal tank, which divides the bottom aeration dust removal tank into an aeration zone and a primary filtration zone. A boron carbide dust recovery pipe and a sewage pipe are respectively provided at the bottom of the aeration zone and the primary filtration zone. The bottom of the pipe with a solenoid valve is connected to the top of the aeration zone, and the purification pumping pipe is connected to the top of the primary filtration zone.

[0012] Furthermore, the output end of the pure water purifier is connected to the pure water storage tank through a connecting hose, a pure water filling port is provided on the top of the pure water storage tank, and a pipeline equipped with a high-pressure water pump is connected to the bottom of the pure water storage tank.

[0013] Optionally, the air inlet pipes are arranged in an array on the air inlet plate, and there are at least two rows of air inlet pipes. The array-shaped air inlet pipes are symmetrically distributed on the upper and lower sides of the center line of the air inlet plate in the height direction. The high-pressure atomizing water nozzle is arranged between the two adjacent rows of air inlet pipes. The water outlet end of the high-pressure atomizing water nozzle is horizontally arranged in a sealed dust collecting bin. The water inlet end of the high-pressure atomizing water nozzle is connected to a water distribution pipe installed on the outside of the air inlet plate, and the water distribution pipe is connected to the high-pressure water pump through a water supply main pipe.

[0014] Optionally, the air inlet pipes are arranged in an array on the air inlet plate, and there are at least two rows of air inlet pipes. The array-shaped air inlet pipes are arranged below the center line of the air inlet plate in the height direction, and the high-pressure atomizing water nozzle is arranged on the top plate. The water outlet end of the high-pressure atomizing water nozzle is vertically arranged in the sealed dust collecting bin, and the water inlet end of the high-pressure atomizing water nozzle is connected to the water distribution pipe installed above the top plate. The water distribution pipe is connected to the water supply main pipe through the water supply horizontal pipe, and the water main pipe is connected to the high-pressure water pump.

[0015] Furthermore, a slide rail is installed on the bottom support plate, and a boron carbide product holder and an adjustable processing component are installed on the slide rail.

[0016] The present invention has the following positive effects:

[0017] 1. The present invention adopts an independent sealed dust collecting bin, which can realize closed processing operations. When the processing operation is running, the dust collection operation is carried out in a closed space, and the boron carbide dust will not escape to the outside. The safety factor is high and the dust collection effect is good. The sealed dust collecting bin sealed by the sealed opening and closing door has an air inlet on one side and a dust collecting hole on the other side when in use. When the waterproof fan starts the exhaust operation, the airflow enters the sealed dust collecting bin through the air inlet pipe, and then the dust in the sealed dust collecting bin is collected through the dust collecting hole, realizing one-way circulation of the airflow and good closed dust collection effect. The dust is finally filtered in water through the bottom aeration dust removal pool, and the dust removal effect is good. In addition, the high-pressure atomizing water nozzle is used to realize water atomization in the sealed dust collecting bin during the exhaust and dust removal operation to avoid dust escape and achieve efficient recovery.

[0018] 2. The present invention adopts a water-adding operation method in which atomized water fills the entire sealed dust collecting bin. Different from the traditional vertex watering and spraying dust reduction methods, the high-pressure atomizing water nozzle of the present invention can match the air inlet path to achieve the mixing of water mist and dust in the dust collection process. Part of the water mist and dust mixture is recovered through the water mist and dust mixing recovery cover, and the other part of the water mist and dust mixture that falls by its own weight is finally recovered through the waste liquid collection pool. In the end, water resources can be recycled, saving resources and improving the dust collection efficiency.

[0019] 3. The present invention adopts a high-pressure atomizing water nozzle to realize the water atomization operation of the sealed dust collecting bin. The mixing of dust and atomized water can be achieved without taking a separate vertex spray to reduce dust. The air inlet position is set on one side, and the atomized water and the air inlet path cooperate to realize the water atomization air inlet path in the overall cavity of the sealed dust collecting bin. It can not only implement water atomization to reduce dust in the inner cavity of the operating space, but also have the effect of cooling the atomized water. As the gas flow path runs, the atomized water will implement comprehensive water atomization cooling on the outside of the operating processing surface, and also realize the recovery of the escaped dust after dust reduction. The overall operation recovery rate is high and the dust reduction effect is obvious. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the main structure of the present invention.

[0021] Figure 2 It is a side structural schematic diagram of the present invention.

[0022] Figure 3 This is one of the internal structure diagrams of the present invention.

[0023] Figure 4 For the present invention Figure 3 Schematic diagram of the AA cross-section structure.

[0024] Figure 5 For the present invention Figure 3 Schematic diagram of the BB cross-section structure.

[0025] Figure 6 This is the second schematic diagram of the internal structure of the present invention. DETAILED DESCRIPTION

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0027] In the following description of the invention, it should be noted that the terms "upper," "lower," "left," "right," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the invention. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. The term "connected" simply indicates a connection between devices and does not have any special meaning.

[0028] Specific embodiments refer to Figure 1 、 2 , 3, 4, 5, and 6, a boron carbide dust collection and recycling device includes a recycling box 1 and a product processing box 2 installed above the recycling box 1, a sealed dust collection bin 42 with a sealed opening and closing door 4 is installed in the product processing box 2, one side of the sealed dust collection bin 42 is connected to the outside world through the air inlet pipe 5, and the other side of the sealed dust collection bin 42 is connected to the water mist and dust mixed recovery cover 23 through the dust collection hole 22, the bottom of the sealed dust collection bin 42 is connected to the waste liquid collection pool 19 through the waste liquid collection hole 18, and the water mist and dust mixed recovery cover 23 is connected to the water mist and dust mixed recovery cover 23 through the waterproof fan 24. The pipe 26 is connected, the bottom of the water mist and dust mixing recovery pipe 26 is connected to the bottom aeration dust removal tank 29 installed in the recovery box 1, and the upper part of the bottom aeration dust removal tank 29 is connected to the pure water purifier 35 through the purification pumping pipe 33 equipped with a water pump 34. The output end of the pure water purifier 35 is connected to the pure water storage tank 38. The pure water storage tank 38 is connected to the high-pressure atomizing water nozzle 16 installed on the inner wall of the dust collecting bin 42 through a pipeline equipped with a high-pressure water pump 39. The bottom of the waste liquid collection tank 19 is connected to the top of the bottom aeration dust collecting tank 29 through a pipeline with a solenoid valve 27. The sealed dust collecting bin 42 is composed of a top plate 12, an air inlet plate 13, an air outlet plate 21 and a bottom support plate 17. The air inlet pipe 5 is fixedly installed between the air inlet plate 13 and the product processing box 2. One side of the air inlet pipe 5 is connected to the sealed dust collecting bin 42, and the other side of the air inlet pipe 5 is connected to the outside world. The dust collecting hole 22 is opened on the air outlet plate 21, and the air outlet plate 21 is installed tilted from bottom to top toward the air inlet plate 13. The waste liquid collection hole 18 is opened on the bottom support plate 17. A partition 20 is provided between the product processing box 2 and the recycling box 1. The waste liquid collection tank 19 is fixedly installed between the top of the partition 20 and the bottom wall of the bottom support plate 17.

[0029] The recycling box 1 performs bottom loading operations on electrical equipment and components such as the bottom aeration dust removal tank 29, the pure water purifier 35 and the pure water storage box 38. The recycling processing and water recycling devices are set in the recycling box 1, and are isolated from the upper product processing box 2 by the partition 20. The product processing box 2 is an external protection component of the sealed dust collection bin 41, and is also used to support and install components such as the high-pressure atomizing water nozzle 16, the controller 6, the air inlet pipe 5, the waterproof fan 24 and the water supply main pipe 14.

[0030] The sealed dust collecting bin 42 adopts a sealed structure, which is composed of a top plate 12, an air inlet plate 13, an air outlet plate 21 and a bottom support plate 17. One side of the top plate 12, the air inlet plate 13, the air outlet plate 21 and the bottom support plate 17 are connected to the rear side wall of the product processing box 2 to form a front opening structure. The sealed opening and closing door 4 is supported by the opening and closing shaft 9 installed on the product processing box 2. The outer diameter of the sealed opening and closing door 4 is matched with the inner diameter of the opening of the sealed dust collecting bin 42 to realize the sealing operation of the sealed dust collecting bin 42 after closing the sealed opening and closing door 4.

[0031] When the air inlet pipe 5 is in operation, its air inlet operation surface can be horizontally aligned with the opening position of the dust collecting hole 22 or the air inlet path from bottom to top. This structural design can realize efficient recovery of dust in the sealed dust collecting bin 42. The adoption of a single air inlet path is conducive to efficient recovery of dust. At the same time, the atomized water of the high-pressure atomizing water nozzle 16 is sprayed out, and the atomized water operation is performed at the starting end of the air inlet path. The atomized water can fully cover the entire cavity of the sealed dust collecting bin 42 along the air inlet path, realizing the suction and dust removal while cooperating with the atomization and dust reduction operation. Part of the atomized water will carry the dust along the suction path and the external air entering through the air inlet pipe 5, and will be recovered through the dust collecting hole 22 to the water mist and dust mixed recovery hood 2 3, and with the continuous suction action of the waterproof fan 24, the water mist and dust mixture is recovered to the bottom aeration dust removal tank 29 through the water mist and dust mixture recovery pipe 26. In the bottom aeration dust removal tank 29, the gas and dust are separated, and the gas is finally discharged through the top of the bottom aeration dust removal tank 29. The recovered boron carbide dust remains in the water of the bottom aeration dust removal tank 29. The water filtered by the pure water purifier 35 can be recycled and pumped by the high-pressure water pump 39 to provide a water source for the operation of the high-pressure atomizing water nozzle 16, thus forming a dust reduction operation with circulating water utilization. Another part of the atomized water mixed with the dust will be adhered to the processing equipment installed in the sealed dust collection bin 42 or the inner wall of the sealed dust collection bin 42 or the outer wall of the boron carbide product. This part of the atomized water will be precipitated with the continuous operation of the high-pressure atomizing water nozzle 16, taking away the heat generated by the equipment processing and part of the dust during precipitation, and finally flow into the waste liquid collection tank 19 at the bottom through the waste liquid collection hole 18.

[0032] The sealed opening and closing door 4 is sealed with the sealed dust collection bin 42 via an opening and closing rotating shaft 9 installed on the product processing box 2. An observation window 7 is provided on the sealed opening and closing door 4. A controller 6 is provided on the product processing box 2 on one side of the sealed dust collection bin 42. The controller 6 is connected to the dust monitoring sensor 41 installed in the sealed dust collection bin 42. The opening and closing door 3 is installed on the recovery box 1. The processing status of the boron carbide products in the sealed dust collection bin 42 can be observed at any time through the observation window 7, and corresponding operations can be performed through the controller 6. The controller 6 is electrically connected to the waterproof fan 24, the dust monitoring sensor 41, the water pump 34, the pure water purifier 35, the solenoid valve 27, and the high-pressure water pump 39. The waterproof fan 24 performs the suction operation during dust collection, and can drive the air in the sealed dust collection bin 42 to be sucked into the water mist and dust mixing recovery hood 23, and continuously transported to the bottom aeration dust removal tank 29. During the suction operation, the dust monitoring sensor 41 detects dust inside the sealed dust collection bin 42, and the controller adjusts the suction power of the waterproof fan 24 at any time to control the suction force. The water pump 34 draws water from the upper part of the bottom aeration and dust removal tank 29 to prevent the inhalation of settled particles at the bottom. The pure water purifier 35 purifies the water in the bottom aeration and dust removal tank 29 for reuse during the circulating water operation. The solenoid valve 27 is not closed during the dust reduction operation to prevent interference with the gas suction path in the sealed dust collection bin 42 caused by the inhalation of gas from the pipe where the solenoid valve 27 is installed.

[0033] The water mist and dust mixing recovery hood 23 is a funnel-shaped square hood structure. The square opening of the water mist and dust mixing recovery hood 23 matches the height and width of the sealed dust collection bin 42. A waterproof fan 24 is installed at the square closed end of the water mist and dust mixing recovery hood 23. The waterproof fan 24 is connected to the water mist and dust mixing recovery pipe 26 through the air pressure bin 25. The water mist and dust mixing recovery pipe 26 is a rigid plastic pipe. The bottom of the water mist and dust mixing recovery pipe 26 is connected to a telescopic hose 28 installed in the recovery box 1. The telescopic hose 28 is connected to the bottom of one side of the bottom aeration dust removal tank 29. The water mist and dust collection hood 23 cooperates with the air outlet plate 21 to achieve dust extraction and reduction. During use, atomized water adheres to the air outlet plate 21 and the inner wall of the water mist and dust collection hood 23. The air outlet plate 21 is tilted upward from the bottom toward the air inlet plate 13. This not only achieves efficient air extraction and dust recovery, but also facilitates the overflow of adhered water through the dust collection holes 22 at the bottom. This overflowed liquid mixed with dust is eventually recovered into the waste liquid collection tank 19 under its own weight, along with the liquid adhering to the air outlet plate 21. Most of the water mist mixed with dust is sucked back into the water mist and dust collection pipe 26 for recovery. The design of the telescopic hose 28 facilitates the movement of the bottom aeration dust removal tank 29.

[0034] When this product is in operation, a leak-proof solenoid valve is installed at the connection between the telescopic hose 28 and the bottom aeration and dust removal tank 29. The leak-proof solenoid valve opens when the suction and dust reduction operation begins and closes promptly after the suction and dust reduction operation is completed to prevent water from flowing back into the bottom aeration and dust removal tank 29. The leak-proof solenoid valve can also be replaced by a one-way valve.

[0035] The bottom aeration and dust removal tank 29 is equipped with a longitudinal filter plate 31, which divides the bottom aeration and dust removal tank 29 into an aeration zone and a primary filtration zone. A boron carbide dust recovery pipe 30 and a drain pipe 32 are respectively installed at the bottom of the aeration and primary filtration zones. The bottom of the pipe with the solenoid valve 27 is connected to the top of the aeration zone, and a purified water pump 33 is connected to the top of the primary filtration zone. The longitudinal filter plate 31 provides primary filtration. Separate boron carbide dust recovery pipes 30 and drain pipes 32 are installed in both the aeration and primary filtration zones to recover and reuse particulate matter. Wastewater discharged from the waste liquid collection tank 19 at the bottom of the pipe with the solenoid valve 27 is ultimately discharged into the aeration zone. This wastewater is filtered through the longitudinal filter plate 31, achieving a primary separation of water and boron carbide dust. A purified water pump 33, equipped with a pump 34, is connected to the top of the primary filtration zone after primary filtration, completing the water purification process.

[0036] The output end of the pure water purifier 35 is connected to a pure water storage tank 38 via a connecting hose 36. A pure water filling port 37 is provided at the top of the pure water storage tank 38, and a pipeline equipped with a high-pressure water pump 39 is connected to the bottom of the pure water storage tank 38. The provision of the connecting hose 36 allows for space to be reserved when the equipment is moved between devices. The purified water pump pipe 33 also adopts a hose design. When the water in the product circulation water circuit needs to be discharged after long-term use or evaporation is reduced, it can be replenished through the pure water filling port 37.

[0037] Example 1: Figure 1-5 As shown, when this product is in operation, the air inlet pipes 5 are arranged in an array on the air inlet plate 13, and there are at least two rows of air inlet pipes 5. The array-shaped air inlet pipes 5 are symmetrically distributed on the upper and lower sides of the center line of the air inlet plate 13 in the height direction, and the high-pressure atomizing water nozzle 16 is arranged between the two adjacent rows of air inlet pipes 5. The water outlet end of the high-pressure atomizing water nozzle 16 is horizontally arranged in the sealed dust collecting bin 42, and the water inlet end of the high-pressure atomizing water nozzle 16 is connected to the water distribution pipe 15 installed on the outside of the air inlet plate 13, and the water distribution pipe 15 is connected to the high-pressure water pump 39 through the water supply main pipe 14.

[0038] During the operation of this embodiment, the air inlet path and the dust collecting hole 22 are in the same plane, and the high-pressure atomized water nozzle 16 and the air inlet pipe 5 are both set in a horizontal state. When the external air enters the sealed dust collecting bin 42, the atomized water is sprayed, and the atomized water will flow horizontally toward the dust collecting hole 22 along with the air inlet path. A slide rail 11 is installed on the bottom support plate 17, and a boron carbide product clamp 10 and an adjustable processing component 8 are installed on the slide rail 11. During the processing operation, the dust generated by the operating parts of the adjustable processing component 8 and the boron carbide product processing position will be recovered into the dust collecting hole 22 along the air inlet path. During the water mist mixed dust recovery process, part of the mixture is sucked into the bottom aeration dust removal tank 29 to separate water, air and impurity particles. Another part of the mixture is recovered to the bottom aeration dust removal tank 29 through the waste liquid collection hole 18 and the waste liquid collection tank 19 to separate water and impurity particles. The separation process utilizes a longitudinal filter plate 31 installed between the aeration zone and the primary filtration zone. A one-way valve or solenoid valve is installed at the connection between the bottom aeration and dust removal tank 29 and the flexible hose 28 for coordinated control. The majority of recovered boron carbide particles are isolated within the aeration zone and later recovered by opening the boron carbide dust recovery pipe 30. The supernatant from the upper portion of the primary filtration zone is connected to a pure water purifier 35 via a purified water pipe 33 equipped with a pump 34. After purification, the wastewater is stored in a pure water storage tank 38 and recycled via a high-pressure pump 39.

[0039] The array of air inlet pipes 5 is symmetrically distributed above and below the midline of the air inlet plate 13. High-pressure atomized water nozzles 16 are positioned between two adjacent rows of air inlet pipes 5. Atomized water and air intake are horizontally fed into the sealed dust collection bin 42 on the same working surface. The air outlet plate 21 is tilted upward from bottom to top toward the air inlet plate 13, enabling efficient dust recovery within the sealed dust collection bin 42. This also facilitates waste liquid recovery from the stagnant products after the atomized water and dust mix and contacts the inner wall of the sealed dust collection bin 42, the outer wall of the equipment, and the outer wall of the boron carbide product. The overall gas flow path is horizontal in the initial section, and then tilted upward at the rear end to be drawn into the water mist and dust mixing recovery hood 23.

[0040] Example 2 Figure 6 As shown in combination with 1-5, the air inlet pipes 5 are arranged in an array on the air inlet plate 13, and there are at least two rows of air inlet pipes 5. The array-shaped air inlet pipes 5 are arranged below the center line of the air inlet plate 13 in the height direction, and the high-pressure atomizing water nozzle 16 is arranged on the top plate 12. The water outlet end of the high-pressure atomizing water nozzle 16 is vertically arranged in the sealed dust collecting bin 42, and the water inlet end of the high-pressure atomizing water nozzle 16 is connected to the water distribution pipe 15 installed above the top plate 12. The water distribution pipe 15 is connected to the water supply main pipe 14 through the water supply cross pipe 40, and the water main pipe 14 is connected to the high-pressure water pump 39.

[0041] During the operation of this embodiment, the air inlet path and the dust collecting path of the dust collecting hole 22 are in an inclined state, and the high-pressure atomizing water nozzle 16 and the air inlet pipe 5 are arranged in a vertically intersecting state. The air inlet pipe 5 is arranged horizontally, and the high-pressure atomizing water nozzle 16 is arranged vertically. During operation, atomized water is sprayed from top to bottom toward the sealed dust collecting bin 42. At the same time, external gas enters the sealed dust collecting bin 42 from the outer box through the air inlet pipe 5. Under the continuous action of the waterproof fan 24, the incoming gas is mixed with the atomized water sprayed by the high-pressure atomizing water nozzle 16 and moves toward the dust collecting hole position. The path is inclined upward during movement.

[0042] A slide rail 11 is mounted on the bottom support plate 17, and a boron carbide product holder 10 and an adjustable processing unit 8 are mounted on the slide rail 11. During the processing operation, dust generated by the operating components of the adjustable processing unit 8 and the boron carbide product processing position is recovered into the dust collection hole 22 along the air inlet path that slopes from the right bottom to the left upper part. During the water mist mixed dust recovery process, part of the mixture is sucked into the bottom aeration dust removal tank 29 for separation of water, air, and impurity particles. Another part of the mixture is recovered through the waste liquid collection hole 18 and the waste liquid collection tank 19 to the bottom aeration dust removal tank 29 for separation of water and impurity particles. The separation operation is carried out by installing a longitudinal filter plate 31 between the aeration zone and the primary filtration zone. A one-way valve or solenoid valve is installed at the connection point between the bottom aeration dust removal tank 29 and the telescopic hose 28 for coordinated control. Most of the recovered boron carbide particles are isolated in the aeration zone and later recovered by opening the boron carbide dust recovery pipe 30. The supernatant above the primary filtration area is connected to the pure water purifier 35 through a purification pumping pipe 33 equipped with a pumping pump 34. After sewage purification, it is stored in a pure water storage tank 38 and recycled through a high-pressure pump 39.

[0043] The array-shaped air inlet pipe 5 is set below the height centerline of the air inlet plate 13. The high-pressure atomized water nozzle 16 is set on the top plate 12. The atomized water and the incoming air are vertically intersected at different working surfaces and input into the sealed dust collection bin 42. The air outlet plate 21 is installed tilted from bottom to top toward the air inlet plate 13, which can achieve efficient dust recovery in the sealed dust collection bin 42. At the same time, it can also implement corresponding acceptance at the air inlet position, which is also conducive to providing a convenient structure for waste liquid recovery of the stagnant products after the atomized water and dust mix and contact with the inner wall of the sealed dust collection bin 42, the outer wall of the equipment, and the outer wall of the boron carbide product. The overall gas flow path is from the lower right to the upper left of the sealed dust collection bin 42.

[0044] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A boron carbide dust collection and recycling device, comprising a recovery box (1) and a product processing box (2) installed above the recovery box (1), characterized in that: The product processing box (2) is provided with a sealed dust collecting bin (42) having a sealed opening and closing door (4). One side of the sealed dust collecting bin (42) is connected to the outside through an air inlet pipe (5). The other side of the sealed dust collecting bin (42) is connected to a water mist dust mixing recovery hood (23) through a dust collecting hole (22). The bottom of the sealed dust collecting bin (42) is connected to a waste liquid collection tank (19) through a waste liquid collection hole (18). The water mist dust mixing recovery hood (23) is connected to a water mist dust mixing recovery pipe (26) through a waterproof fan (24). The bottom of the water mist dust mixing recovery pipe (26) is connected to a bottom aeration dust removal device installed in the recovery box (1). The waste liquid collection tank (19) is connected to the bottom aeration dust removal tank (29), the upper part of the bottom aeration dust removal tank (29) is connected to the pure water purifier (35) through a purification pumping pipe (33) equipped with a pumping pump (34), the output end of the pure water purifier (35) is connected to the pure water storage tank (38), the pure water storage tank (38) is connected to the high-pressure atomizing water nozzle (16) installed on the inner wall of the dust collection bin (42) through a pipeline equipped with a high-pressure pumping pump (39), the bottom of the waste liquid collection tank (19) is connected to the top of the bottom aeration dust removal tank (29) through a pipeline with a solenoid valve (27); the sealed dust collection bin (42) is composed of a top plate (12), an air inlet plate (13), The invention relates to a vacuum cleaner comprising an air outlet plate (21) and a bottom support plate (17); an air inlet pipe (5) is fixedly installed between the air inlet plate (13) and the product processing box (2); one side of the air inlet pipe (5) is connected to a sealed dust collecting bin (42); the other side of the air inlet pipe (5) is connected to the outside; a dust collecting hole (22) is provided on the air outlet plate (21); the air outlet plate (21) is installed tilted from bottom to top toward the position of the air inlet plate (13); a waste liquid collection hole (18) is provided on the bottom support plate (17); a partition plate (20) is provided between the product processing box (2) and the recycling box (1); and a waste liquid collection tank (19) is fixedly installed between the top of the partition plate (20) and the bottom support plate (17). The air inlet pipes (5) are arranged in an array on the air inlet plate (13), the air inlet pipes (5) are in at least two rows, the air inlet pipes (5) in the array are symmetrically distributed on the upper and lower sides of the midline of the air inlet plate (13) in the height direction, the high-pressure atomizing water nozzle (16) is arranged between the two upper and lower adjacent rows of air inlet pipes (5), the water outlet end of the high-pressure atomizing water nozzle (16) is horizontally arranged in the sealed dust collecting bin (42), the water inlet end of the high-pressure atomizing water nozzle (16) is connected to the water distribution pipe (15) installed on the outside of the air inlet plate (13), and the water distribution pipe (15) is connected to the high-pressure water pump (39) through the water supply main pipe (14);Or an array-shaped air inlet pipe (5) is arranged below the midline of the air inlet plate (13) in the height direction, a high-pressure atomized water nozzle (16) is arranged on the top plate (12), a water outlet end of the high-pressure atomized water nozzle (16) is vertically arranged in a sealed dust collecting bin (42), a water inlet end of the high-pressure atomized water nozzle (16) is connected to a water distribution pipe (15) installed above the top plate (12), the water distribution pipe (15) is connected to a water supply main pipe (14) through a water supply transverse pipe (40), and the water main pipe (14) is connected to a high-pressure water pump (39); a slide rail (11) is installed on the bottom support plate (17), and a boron carbide product holder (10) and an adjustable processing component (8) are installed on the slide rail (11). ; 2. The boron carbide dust collection and recycling device according to claim 1 is characterized in that: The sealed opening and closing door (4) is sealed with the sealed dust collecting bin (42) through an opening and closing rotating shaft (9) installed on the product processing box (2); an observation window (7) is provided on the sealed opening and closing door (4); a controller (6) is provided on the product processing box (2) on one side of the sealed dust collecting bin (42); the controller (6) is connected to a dust monitoring sensor (41) installed in the sealed dust collecting bin (42); and an opening and closing door (3) is provided on the recovery box (1).

3. The boron carbide dust collection and recycling device according to claim 1 is characterized in that: The water mist and dust mixing recovery hood (23) is a funnel-shaped square hood structure. The square opening end of the water mist and dust mixing recovery hood (23) matches the height and width of the sealed dust collecting bin (42). The waterproof fan (24) is installed at the square closing end of the water mist and dust mixing recovery hood (23). The waterproof fan (24) is connected to the water mist and dust mixing recovery pipe (26) through the air pressure bin (25).

4. The boron carbide dust collection and recycling device according to claim 1 is characterized in that: The water mist and dust mixing recovery pipe (26) is a hard plastic pipe. The bottom of the water mist and dust mixing recovery pipe (26) is connected to a telescopic hose (28) installed in the recovery box (1). The telescopic hose (28) is connected to the bottom of one side of the bottom aeration dust removal tank (29).

5. The boron carbide dust collection and recycling device according to claim 1 is characterized in that: A longitudinal filter plate (31) is arranged in the bottom aeration dust removal tank (29), and the longitudinal filter plate (31) divides the bottom aeration dust removal tank (29) into an aeration zone and a primary filtration zone. A boron carbide dust recovery pipe (30) and a sewage pipe (32) are respectively arranged at the bottom of the aeration zone and the primary filtration zone. The bottom of the pipe with a solenoid valve (27) is connected to the top of the aeration zone, and the purification pumping pipe (33) is connected to the top of the primary filtration zone.

6. The boron carbide dust collection and recycling device according to claim 1, characterized in that: The output end of the pure water purifier (35) is connected to the pure water storage tank (38) via a connecting hose (36), a pure water filling port (37) is provided at the top of the pure water storage tank (38), and a pipeline equipped with a high-pressure water pump (39) is connected to the bottom of the pure water storage tank (38).

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