Workshop dust purification device and use method

Abstract

The invention relates to the technical field of workshop dust purification, in particular to a workshop dust purification device and a using method.The workshop dust purification device comprises a box body, the top of the box body communicates with a dust filtering bin, and a first filtering cavity and a second filtering cavity are formed in the dust filtering bin; dust flow channels are formed in the first filtering cavity and the second filtering cavity, the top of the first filtering cavity and the top of the second filtering cavity are communicated with a first flow dividing pipeline and a second flow dividing pipeline respectively, and an electromagnetic three-way valve is communicated between the first flow dividing pipeline and the second flow dividing pipeline; the top of the electromagnetic three-way valve communicates with a dust suction pipeline, the side wall of the dust filtering bin communicates with a first air outlet pipe and a second air outlet pipe, and the middle of the first air outlet pipe and the middle of the second air outlet pipe communicate with an exhaust pipeline. The working chambers can be flexibly switched according to actual working conditions, flue gas and dust can be uniformly separated, and high-precision separation of metal and non-metal dust impurities is realized.

Description

Technical Field

[0001] The present invention relates to the technical field of workshop dust purification, and in particular to a workshop dust purification device and a use method thereof. Background Art

[0002] Dust generally refers to tiny particles consisting of solid particles that can occur naturally or as a result of human activities. They range in size from a few nanometers to hundreds of micrometers. Dust particles vary in density, shape, hardness, and chemical properties, which determine how dust behaves in the environment and its potential health effects.

[0003] In industrial production workshops, such as mechanical processing, metal grinding, chemical industry and other industries, a large amount of dust is generated. These dusts will not only pollute the workshop environment and affect the health of workers, such as long-term inhalation may cause respiratory diseases such as pneumoconiosis, but also may damage production equipment, affecting the normal operation and service life of the equipment, so dust purification devices are needed to deal with dust.

[0004] At present, most of the dust treatment methods on the market are to use fans to suck the dust into the device and filter it through the filter. However, the filter alone cannot separate the flue gas and impurities evenly, and the dust in some workshops may contain metal impurities. If they are not separated and recovered, it will have an adverse effect on the subsequent material recycling and production equipment, and may damage the precision parts of the equipment or affect product quality. Summary of the invention

[0005] The purpose of the present invention is to solve the problem that the devices in the prior art are not convenient for filtering smoke dust impurities uniformly and for separating metal impurities from dust impurities, and to propose a workshop dust purification device and a method of use.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions: A workshop dust purification device and use method thereof, comprising a box body, the top of the box body is connected to a dust filter bin, the dust filter bin is provided with a first filter chamber and a second filter chamber, a partition is installed between the first filter chamber and the second filter chamber, a dust flow channel is provided inside the first filter chamber and the second filter chamber, the tops of the first filter chamber and the second filter chamber are respectively connected with a first shunt pipe and a second shunt pipe, an electromagnetic three-way valve is connected between the first shunt pipe and the second shunt pipe, the top of the electromagnetic three-way valve is connected with a dust suction pipe, a first air outlet pipe and a second air outlet pipe are connected to a side wall of the dust filter bin, the first air outlet pipe is connected to the first filter chamber, the second air outlet pipe is connected to the second filter chamber, an exhaust pipe is connected between the first air outlet pipe and the second air outlet pipe, and a first electromagnetic valve and a second electromagnetic valve are respectively installed on the first air outlet pipe and the second air outlet pipe; Also includes: A filtering mechanism, the filtering mechanism comprising a filtering assembly and a discharge assembly, the filtering mechanism being used to filter gas dust and impurity dust; A discharging mechanism, the discharging mechanism is used to discharge the filtered impurities; A separation mechanism is provided, wherein the separation mechanism is used for separating dust impurities and metal impurities.

[0007] Preferably, the filter assembly comprises a V-shaped filter assembly, and the V-shaped filter assembly comprises an upper filter element and a lower filter element: The upper filter element is composed of two first mounting plates and filter core elements connected therein, and the lower filter element is composed of two second mounting plates and filter core elements connected therein; The filter element is a dust filter roller, and a plurality of the dust filter rollers are linearly distributed; A telescopic plate for sealing is fixed between the first mounting plate and the second mounting plate.

[0008] Preferably, the filter assembly further comprises an opening adjustment portion of a V-shaped filter assembly, and the opening adjustment portion comprises: A rotating rod, the rotating rod is rotatably connected in the dust filter bin, the outer wall of the rotating rod is sleeved with a plurality of sets of screw members, the screw members include a first screw and a second screw, and the first screw and the second screw are symmetrically arranged; A slider assembly, the slider assembly is composed of a first slider and a second slider, which are respectively threadedly sleeved on the outer walls of the first screw rod and the second screw rod; Both ends of the first mounting plate and the second mounting plate are fixed with rotating shafts; the first slider is used for rotating the rotating shaft of the first mounting plate, and the second slider is used for rotating the rotating shaft of the second mounting plate; The rack and pinion assembly is used to drive the rotating shaft to rotate, thereby braking the rotation of the first mounting plate and the second mounting plate respectively.

[0009] Preferably, the rack and pinion assembly comprises an upper filter element drive group and a lower filter element drive group; The upper filter element driving group comprises a first gear and a first tooth plate meshing with each other, the first gear is fixedly sleeved on a rotating shaft disposed in the first sliding block, and the first tooth plate is fixed on the side wall of the partition; The lower filter element driving group comprises a second gear and a second gear plate meshing with each other, and the second gear is fixedly sleeved on a rotating shaft disposed in the second sliding block; The upper filter element drive group and the lower filter element drive group are respectively located on both sides of the V-shaped filter assembly.

[0010] Preferably, a driving machine is fixed to the bottom surface of the dust filter bin, a screw is fixed to the output end of the driving machine, the second tooth plate slides vertically linearly on the side wall of the dust filter bin, and the second tooth plate is threadedly sleeved on the outer wall of the screw.

[0011] Preferably, the first slider and the second slider are arranged in a concave shape, and through holes are opened inside the first slider and the second slider.

[0012] Preferably, external threads matching with threads of the first screw rod and the second screw rod are provided in the through holes of the first slider and the second slider.

[0013] Preferably, the discharging mechanism comprises: A hopper, the hopper is connected and installed on the bottom surface of the dust filter bin, two hoppers are provided, and the two hoppers are respectively connected to the first filter chamber and the second filter chamber; A discharge pipe, which is connected to the ends of the two hoppers and is provided in accordance with the number of hoppers; A discharge pipe is connected between the two discharge pipes.

[0014] Preferably, the separation mechanism comprises: A separation cylinder, wherein the separation cylinder is installed in the housing; A spiral flow channel, wherein the spiral flow channel is installed on the inner wall of the separation cylinder; A material guide pipe, which is connected and installed at the top of the spiral flow channel, and is arranged in a slender cylindrical structure, and the diameter of the material guide pipe is adapted to the diameter of the outlet at the top of the spiral flow channel; A metal dust collecting hopper, wherein the metal dust collecting hopper is installed on the side wall of the separation cylinder; An electromagnetic cylinder, wherein the electromagnetic cylinder is rotatably mounted in the separation cylinder, the electromagnetic cylinder and the discharge pipe are in the same vertical direction as the axis, and the electromagnetic cylinder is in contact with the outer wall of the spiral flow channel; A connecting frame, the connecting frame is fixed to the bottom surface of the electromagnetic cylinder, a connecting rod is fixed to the connecting frame, and a stirring blade is fixedly sleeved on the connecting rod; A metal magnetic isolation sheet, wherein the metal magnetic isolation sheet is fixed on the inner wall of the electromagnetic cylinder; A metal magnetic isolation strip is installed on the outer wall of the top end of the electromagnetic cylinder.

[0015] A method for using a workshop dust purification device, using the workshop dust purification device, comprising the following steps: S1: Dust extraction: Dust is sucked in through the air inlet of the dust suction duct, and enters the first filter chamber or the second filter chamber after passing through the electromagnetic three-way valve. The actual application of the dual channels is adjusted according to needs.

[0016] S2: Impurity dust and gas dust filtration: The dust flow channel evenly passes through the dust filter roller to perform preliminary filtration on gas dust and impurity dust, larger dust particles are retained on the surface of the dust filter roller, and gas impurities enter the exhaust duct through the first outlet pipe or the second outlet pipe and are discharged.

[0017] S3: Adjustment of the spacing between dust filter rollers 13: The first screw and the second screw are driven to rotate by the rotating rod, thereby driving the first slider and the second slider threadedly matched therewith to move relative to each other, thereby adjusting the distance between the dust filter rollers on the first mounting plate and the second mounting plate to change the gap between the dust filter rollers and maintain a suitable filtering state.

[0018] S4: Impurities and dust discharge: The rotation of the first screw and the second screw is driven by rotating the rotating rod to drive the first slider and the second slider to move relative to each other. The movement of the first slider drives the first gear to contact the first tooth plate to mesh with it and rotate, thereby driving the first mounting plate and the dust filter roller in the middle to rotate upward. The driving machine drives the screw to rotate and drives the second tooth plate to move vertically, and after meshing with the second gear, drives it to rotate, so that the dust filter roller flips over and the material filtered and collected on the surface of the dust filter roller is separated from the surface of the dust filter roller under the action of gravity and the centrifugal force generated by the flipping of the dust filter roller, and falls into the hopper below, thereby realizing the dumping operation of the dust filter roller.

[0019] S5: Impurity and dust discharge: The impurities filtered by the dust filter roller are collected by the hopper, and under the action of gravity, the impurities are gathered into the discharge pipe through the discharge pipe and fall into the separation cylinder for subsequent separation operations.

[0020] S6: Impurity and dust separation: The material containing impurities discharged through the discharge pipe enters the separation cylinder, and the electromagnetic cylinder is energized to generate a magnetic field and rotate, and the connection frame, the connection rod and the stirring blade are driven to rotate together during the rotation. The rotation of the stirring blade generates shear force and convection force on the material, so that the material is fully mixed and moved in the separation cylinder, and the metal dust impurities are prompted to gradually move upward and be discharged along the spiral flow channel under the combined action of gravity and stirring force, thereby realizing effective separation of metal dust impurities and non-metallic dust impurities.

[0021] Compared with the prior art, the present invention has the following advantages: 1. The present invention provides a first filter chamber and a second filter chamber, and controls the airflow distribution by an electromagnetic three-way valve, so that the working chamber can be flexibly switched according to the actual working conditions or maintenance requirements, ensuring continuous filtering operation while facilitating the cleaning or maintenance of the dust filter roller in a single chamber. This effectively reduces equipment downtime, extends the overall service life of the equipment, and reduces operating costs.

[0022] 2. The present invention realizes dynamic adjustment of the dust filter roller spacing by utilizing the cooperation of a rotating rod, a screw and a slider, can adapt to the filtering requirements of dust of different particle sizes, greatly improves the filtering efficiency and applicability, and links the first screw, the second screw, the first slider, the second slider and the related gear structure to realize the coordinated flipping movement of the dust filter roller driven by the first mounting plate and the second mounting plate, so that the impurity dumping operation on the dust filter roller can be completed in a relatively short time without complicated manual intervention or the assistance of large external equipment, so that the impurities can be more comprehensively and thoroughly separated from the dust filter roller, effectively avoiding the continuous influence of residual impurities on the filtering performance of the dust filter roller.

[0023] 3. The present invention generates a magnetic field by energizing the electromagnetic cylinder to absorb metal impurities. At the same time, its rotation drives the stirring blades to rotate, so that the materials are fully mixed and moved in the separation cylinder, and the metal dust impurities move orderly along the spiral flow channel. Then, with the help of the magnetic field shielding effect of the metal magnetic isolation strip, the metal dust loses its magnetic force at a specific position and falls accurately into the metal dust collecting hopper through the material guide pipe, thereby realizing high-precision separation of metal and non-metallic dust impurities, improving the value of material recycling, and reducing pollution to the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A schematic diagram of the overall structure of a workshop dust purification device proposed by the present invention; Figure 2This is a schematic cross-sectional structure diagram of a workshop dust purification device proposed by the present invention; Figure 3 This is a schematic cross-sectional structure diagram of a workshop dust purification device proposed by the present invention; Figure 4 This is a schematic diagram of the structure of the filtering mechanism and the discharging mechanism of a workshop dust purification device proposed by the present invention; Figure 5 This is a schematic diagram of the structure of the filtering mechanism and the discharging mechanism of a workshop dust purification device proposed by the present invention; Figure 6 This is a schematic diagram of the separation mechanism structure of a workshop dust purification device proposed by the present invention; Figure 7 A workshop dust purification device proposed by the present invention Figure 6 Schematic diagram of the structure in the separated state of the middle parts.

[0025] In the figure: 1. Box; 2. Dust filter bin; 201. Dust flow channel; 3. Partition; 4. First filter chamber; 41. First shunt pipe; 42. First air outlet pipe; 43. First solenoid valve; 5. Second filter chamber; 51. Second shunt pipe; 52. Second air outlet pipe; 53. Second solenoid valve; 6. Solenoid three-way valve; 61. Dust suction pipe; 62. Exhaust pipe; 7. Rotating rod; 71. First screw; 72. Second screw; 8. First slider; 81. First gear; 82. First tooth plate; 9. Second slider block; 91, second gear; 92, second gear plate; 93, screw; 94, driving machine; 10, rotating shaft; 11, first mounting plate; 12, second mounting plate; 13, dust filter roller; 14, telescopic plate; 15, hopper; 16, discharge pipe; 17, discharge pipe; 18, separation cylinder; 181, spiral flow channel; 182, guide pipe; 183, metal dust collecting hopper; 19, electromagnetic cylinder; 191, connecting frame; 192, connecting rod; 193, stirring blade; 20, metal magnetic shielding sheet; 21, metal magnetic shielding strip. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0027] Reference Figure 1-Figure 7A workshop dust purification device includes a box body 1, the top of the box body 1 is connected to a dust filter chamber 2, the interior of the dust filter chamber 2 is provided with a first filter chamber 4 and a second filter chamber 5, a partition 3 is installed between the first filter chamber 4 and the second filter chamber 5, and the partition 3 separates the dust filter chamber 2 into two relatively independent spaces, namely the first filter chamber 4 and the second filter chamber 5. This design allows the two chambers to be operated separately under different working conditions or equipment maintenance requirements. For example, when one chamber is filtering, the other chamber can be used to clean or maintain the dust filter roller 13.

[0028] A dust flow channel 201 is provided inside the first filter chamber 4 and the second filter chamber 5, and the dust flow channel 201 ensures that the dust-laden air can pass through the dust filter roller 13 evenly, thereby improving the filtering efficiency. Its shape and size are optimized to reduce the resistance and turbulence of air flow, so that the dust-laden air can stably contact the dust filter roller 13 and be filtered.

[0029] The tops of the first filter chamber 4 and the second filter chamber 5 are respectively connected to the first diversion pipe 41 and the second diversion pipe 51, an electromagnetic three-way valve 6 is connected between the first diversion pipe 41 and the second diversion pipe 51, and the top of the electromagnetic three-way valve 6 is connected to a dust collection pipe 61. The electromagnetic three-way valve 6 guides the airflow to the first filter chamber 4 or the second filter chamber 5 according to a preset program or real-time detection data.

[0030] A suction mechanism is provided in the dust suction pipe 61. By starting the suction mechanism, the air containing dust in the workshop can be sucked in. The suction device is mainly composed of a fan, a driving machine 94, an air inlet, an air outlet, a protective mesh cover, a shock-absorbing base, etc. By starting the fan to rotate, a negative pressure area is formed inside the fan, so that the air containing dust in the workshop is continuously sucked into the fan through the air inlet under the action of the negative pressure suction force generated by the fan, thereby completing the suction operation. Since the suction mechanism belongs to the prior art in this field and is not unique, it will not be described in detail.

[0031] The side wall of the dust filter bin 2 is connected with a first air outlet pipe 42 and a second air outlet pipe 52, the first air outlet pipe 42 is connected with the first filter chamber 4, the second air outlet pipe 52 is connected with the second filter chamber 5, an exhaust duct 62 is connected in the middle of the first air outlet pipe 42 and the second air outlet pipe 52, and the first solenoid valve 43 and the second solenoid valve 53 are respectively installed on the first air outlet pipe 42 and the second air outlet pipe 52.

[0032] A workshop dust purification device also includes a filtering mechanism, a discharging mechanism and a separating mechanism. The filtering mechanism includes a filtering component and a discharging component.

[0033] The filtering mechanism is used to filter gas dust and impurity dust. The filtering assembly includes a rotating rod 7, a first screw 71, a second screw 72, a first slider 8, a second slider 9, a first mounting plate 11, a second mounting plate 12, a dust filter roller 13 and a telescopic plate 14. The rotating rod 7 is rotatably connected in the dust filter bin 2. The first screw 71 is fixedly sleeved on the rotating rod 7, and the second screw 72 is fixedly sleeved on the rotating rod 7. The first screw 71 and the second screw 72 are symmetrically arranged about the axis of the rotating rod 7. The first screw 71 and the second screw 72 are respectively provided with two. The first slider 8 is threadedly connected to the first screw 71, and the second slider 9 is threadedly connected to the second screw 72. The first slider 8 and the second slider 9 are arranged in a concave shape. The first slider 8 and the second slider 9 are provided with through holes inside. The through holes of the first slider 8 and the second slider 9 are provided with external threads that are threadedly matched with the first screw 71 and the second screw 72. The rotating shaft 10 is rotatably connected to the first slider 8 and the second slider 9 respectively. The first mounting plate 11 is fixedly sleeved on the rotating shaft 10 in the first slider 8. Two first mounting plates 11 are symmetrically provided about the axis of the rotating shaft 10. The second mounting plate 12 is fixedly sleeved on the rotating shaft 10 in the second slider 9. Two second mounting plates 12 are symmetrically provided about the axis of the rotating shaft 10. The first mounting plate 11 and the second mounting plate 12 are arranged in a V-shaped shape. The dust filter roller 13 is respectively installed between the two first mounting plates 11 and the two second mounting plates 12. The surface of the dust filter roller 13 is made of a material with good dust affinity and easy to clean, such as a specially treated fiber fabric or microporous rubber. A plurality of dust filter rollers 13 are linearly distributed. The gap between adjacent dust filter rollers 13 can be set to be slightly smaller than the diameter of common dust particles during initial installation. As dust accumulates during use, the gap will gradually decrease, but through the adjustment of the first slider 8 and the second slider 9, it can be maintained within a suitable filtering gap range. The two ends of the telescopic plate 14 are respectively fixed on the first mounting plate 11 and the second mounting plate 12. The telescopic plate 14 is made of a flexible material with good sealing performance, such as rubber or silicone. The telescopic plate 14 can be adaptively telescoped when the first mounting plate 11 and the second mounting plate 12 move. A metal or plastic frame can be provided inside the telescopic plate 14 to enhance its anti-stretching and anti-deformation capabilities, ensure the sealing of the filtering area, and prevent dust-containing air from leaking from both sides of the dust filter roller 13 to affect the filtering effect.

[0034] The discharge assembly includes a first gear 81, a first tooth plate 82, a second gear 91, a driving machine 94, a screw rod 93 and a second tooth plate 92. The first gear 81 is fixedly sleeved on the rotating shaft 10 placed in the first slider 8, the first tooth plate 82 is fixed on the side wall of the partition 3, the first gear 81 and the first tooth plate 82 are meshed with each other, the second gear 91 is fixedly sleeved on the rotating shaft 10 placed in the second slider 9, the driving machine 94 is fixed on the bottom surface of the dust filter bin 2, the screw rod 93 is fixed on the output end of the driving machine 94, the screw rod 93 is rotatably connected to the dust filter bin 2, the second tooth plate 92 is threadedly sleeved on the screw rod 93, the second gear 91 and the second tooth plate 92 are meshed with each other, the side wall of the dust filter bin 2 is provided with a slide groove for facilitating the vertical sliding of the second tooth plate 92, and the first gear 81 and the second gear 91 are staggered.

[0035] The discharge mechanism is used to discharge the filtered impurities. The discharge mechanism includes a hopper 15, a discharge pipe 16 and a discharge pipe 17. The hopper 15 is connected and installed on the bottom surface of the dust filter bin 2. There are two hoppers 15. The two hoppers 15 are respectively connected to the first filter chamber 4 and the second filter chamber 5. The shape of the hopper 15 is designed to be a cone with a large top and a small bottom, so that the impurities can naturally slide to the discharge pipe 16 under the action of gravity. The inner wall of the hopper 15 is made of smooth material, such as stainless steel or polytetrafluoroethylene coating, to reduce the adhesion of impurities. The opening size of the hopper 15 is compatible with the bottom opening of the first filter chamber 4 and the second filter chamber 5, ensuring that all impurities filtered by the dust filter roller 13 can fall into the hopper 15 smoothly. The discharge pipe 16 is connected at the ends of the two hoppers 15. The discharge pipe 16 is set corresponding to the number of hoppers 15, and the discharge pipe 17 is connected between the two discharge pipes 16.

[0036] The separation mechanism is used to separate dust impurities and metal impurities. The separation mechanism includes a separation cylinder 18, a spiral flow channel 181, a guide tube 182, a metal dust collecting hopper 183, an electromagnetic cylinder 19, a connecting frame 191, a connecting rod 192, a stirring blade 193, a metal magnetic isolation sheet 20, and a metal magnetic isolation strip 21. The separation cylinder 18 is installed in the box body 1. The internal size and shape of the separation cylinder 18 match the spiral flow channel 181, the electromagnetic cylinder 19 and other components to ensure that the material can flow along a predetermined trajectory in the separation cylinder 18. The installation position of the separation cylinder 18 is precisely adjusted in the box body 1 to ensure that it is smoothly connected to the discharge pipe 17, and that the electromagnetic cylinder 19 does not interfere with other components inside the box body 1 when it rotates. The spiral flow channel 181 is installed on the inner wall of the separation cylinder 18. The special spiral structure of the spiral flow channel 181 utilizes the gravity of the material and the power generated by stirring to guide the metal dust impurities to gradually move upward along its inner wall, and finally discharge them to the designated collection area through the guide pipe 182, thereby realizing the effective separation of metal dust impurities and non-metallic dust impurities.

[0037] The guide pipe 182 is connected and installed at the top of the spiral flow channel 181. The guide pipe 182 is an elongated cylindrical structure with a smooth inner wall and good material passability. The diameter of the guide pipe 182 is matched with the diameter of the outlet at the top of the spiral flow channel 181 to ensure that the material can smoothly transition from the spiral flow channel 181 to the guide pipe 182. In the spiral flow channel 181, the material continues to move upward under the driving force of the rotation of the spiral blades. When reaching the top of the spiral flow channel 181, the material enters the guide pipe 182 in an orderly manner because the guide pipe 182 is tightly connected to the outlet at the top of the spiral flow channel 181 and the diameter is matched. In the guide pipe 182, the material naturally falls under the action of gravity due to its smooth inner wall, and the stable airflow environment inside the guide pipe 182 further assists the material in accelerating its fall. During the falling process, the material always maintains a relatively concentrated flow state without dispersion or blockage, and is accurately guided along the material guide pipe 182 to the metal dust collecting hopper 183, thereby completing the extraction of metal impurities.

[0038] The metal dust collecting hopper 183 is installed on the side wall of the separation cylinder 18, and the electromagnetic cylinder 19 is rotatably installed in the separation cylinder 18.

[0039] It should be noted that the electromagnetic cylinder 19 has two feasible rotation driving modes, namely motor drive and wind wheel drive, which can be flexibly selected according to actual working conditions and needs.

[0040] In the motor drive mode, the motor is firmly installed at the bottom of the separation cylinder 18, and the transmission shaft is precisely installed at its output end. The other end of the transmission shaft passes straight through the separation cylinder 18 and is firmly and precisely fixedly connected to the bottom center of the electromagnetic cylinder 19. When the motor starts to run, its output power is efficiently transmitted to the electromagnetic cylinder 19 through the transmission shaft, driving the electromagnetic cylinder 19 to rotate stably around the axis, thereby achieving the expected rotation effect and meeting the functional requirements of the separation mechanism for the rotation of the electromagnetic cylinder 19 under different operating conditions.

[0041] When the wind wheel drive mode is adopted, a wind wheel is carefully arranged at an appropriate position inside the dust collection duct 61. When dust-laden air flows at a relatively high speed in the dust collection duct 61, the high-speed airflow forcefully impacts the wind wheel blades, causing the wind wheel to start quickly and begin to rotate. The wind wheel shaft 10 establishes a connection link with the electromagnetic cylinder 19 through a set of well-designed transmission devices. Specifically, the wind wheel shaft 10 is first connected to a speed-increasing gearbox. In view of the fact that the original speed of the wind wheel generated by the air flow velocity in the dust collection duct 61 is often relatively low, the speed-increasing gearbox can cleverly increase the speed to a reasonable range that matches the rotation of the electromagnetic cylinder 19. Subsequently, the output shaft of the speed-increasing gearbox is connected to a transmission shaft, which needs to pass through the dust filter bin 2 and related isolation structures in turn, and smoothly extend to the separation cylinder 18 to be reliably fixedly connected to the bottom of the electromagnetic cylinder 19 while ensuring good sealing performance to prevent dust leakage. At the connection part, mature and stable connection methods such as key connection or flange connection can be selected to ensure that power can be accurately and effectively transmitted from the wind wheel to the electromagnetic cylinder 19, so that the electromagnetic cylinder 19 can closely follow the rotation rhythm of the wind wheel and rotate stably, thereby realizing the key rotation action in the separation operation driven by the dust suction airflow energy.

[0042] Since the rotation mode of the electromagnetic tube 19 has been relatively maturely applied and implemented in various ways in the relevant technical field, and is not the core innovation point of the present invention, its specific details and various conventional implementation methods will not be elaborated here.

[0043] The electromagnetic cylinder 19 and the discharge pipe 17 are in the same vertical direction as the axis, the connecting frame 191 is fixed on the bottom surface of the electromagnetic cylinder 19, the connecting rod 192 is fixed on the connecting frame 191, and the stirring blade 193 is fixedly sleeved on the connecting rod 192. The stirring blade 193 can generate sufficient shear force and convection force when rotating, so that the material can be fully mixed and moved in the separation cylinder 18, thereby improving the separation effect of metal impurities and non-metallic dust impurities.

[0044] The metal magnetic shielding sheet 20 is fixed on the inner wall of the electromagnetic tube 19, and the metal magnetic shielding strip 21 is installed on the outer wall at the top of the electromagnetic tube 19. The metal magnetic shielding sheet 20 and the metal magnetic shielding strip 21 are made of high magnetic permeability materials. When the electromagnetic tube 19 is energized to generate a magnetic field, the metal magnetic shielding sheet 20 can change the distribution pattern of the magnetic field in a local area, so that the dust containing metal impurities will not be adsorbed thereto, thereby avoiding affecting the subsequent separation. It should be added that: for the convenience of feeding, the bottom of the metal magnetic shielding strip 21 is flush with the top of the separation tube 18, and the shape of the top inner wall of the separation tube 18 is tilted downward from the inside to the outside. When the metal powder reaches the top of the separation tube 18, it flows downward along the top of the separation tube 18.

[0045] The present invention can be explained by the following operation mode: During operation, the dust-containing air in the workshop is sucked in through the dust suction pipe 61, and the electromagnetic three-way valve 6 can control the airflow to enter the first filter chamber 4 or the second filter chamber 5. The dust-containing air entering the filter chamber first passes through the dust filter roller 13, and the dust filter roller 13 can perform preliminary filtration on larger particles of dust and impurities. During the filtering process, the rotating rod 7 is manually rotated to drive the first screw 71 and the second screw 72 to rotate, and the first slider 8 and the second slider 9 threadedly engaged therewith are immediately threadedly engaged therewith, thereby realizing the relative movement of the first slider 8 and the second slider 9, and then adjusting the distance between the first mounting plate 11 and the second mounting plate 12 to adjust the distance between the dust filter rollers 13 to meet the dust filtering requirements of different particle sizes. At the same time, the telescopic plate 14 can be telescopic with the movement of the first mounting plate 11 and the second mounting plate 12 to ensure the closedness of the filtering area.

[0046] When the impurities remaining on the dust filter roller 13 need to be dumped after the filtration is completed, the rotating rod 7 drives the first screw rod 71 and the second screw rod 72 to rotate to drive the first slider 8 and the second slider 9 to move relative to each other. As the first slider 8 and the second slider 9 move, the first gear 81 on the end side of the first slider 8 moves linearly. During the movement, the first gear 81 contacts the first tooth plate 82 and is forced to mesh with it and rotate, thereby driving the first mounting plate 11 and the dust filter roller 13 in the middle thereof to rotate upward, and at the same time, the driving machine 94 is started to drive the screw rod 93 to rotate, and the rotational motion of the screw rod 93 is converted into the second gear plate 82. The plate 92 slides vertically in the slide groove on the side wall of the dust filter bin 2, and the vertical movement of the second tooth plate 92 drives the second gear 91 meshing with it to rotate. The second gear 91 drives the rotating shaft 10 and the second mounting plate 12 on which it is located to rotate, and the dust filter roller 13 installed thereon also flips over accordingly. The materials originally filtered and collected on the surface of the dust filter roller 13 are separated from the surface of the dust filter roller 13 under the action of gravity and the centrifugal force generated by the flipping of the dust filter roller 13, and fall into the hopper 15 below, thereby realizing the dumping operation of the dust filter roller 13, so as to clean the materials on the dust filter roller 13 and prepare for the subsequent continuous filtering work.

[0047] The filtered impurities are collected by the hopper 15 and gathered to the discharge pipe 17 through the discharge pipe 16. The air containing the remaining fine dust enters the exhaust pipe 62 through the first outlet pipe 42 or the second outlet pipe 52 and is discharged. When the material containing impurities enters the separation cylinder 18 from the discharge pipe 17, the electromagnetic cylinder 19 is powered on and rotates to generate a magnetic field. The stirring blades 193 in the separation cylinder 18 start to rotate under the drive of the rotation of the electromagnetic cylinder 19. The rotation of the stirring blades 193 stirs the material entering the separation cylinder 18, prompting the material to be fully mixed and moved in the separation cylinder 18, so that the metal dust impurities can flow more smoothly along the spiral flow channel 181, and then guide the metal dust impurities to gradually move upward along its inner wall. When the metal dust is transported to the area of ​​the metal magnetic isolation strip 21 on the electromagnetic cylinder 19 along the spiral flow channel 181, the magnetic force disappears. After losing the magnetic force, the metal dust impurities are discharged into the metal dust collecting hopper 183 through the guide pipe 182, realizing the effective separation of metal dust impurities and non-metallic dust impurities.

[0048] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A workshop dust purification device, comprising a box (1), characterized in that: The top of the box body (1) is connected to a dust filter bin (2), a first filter chamber (4) and a second filter chamber (5) are provided inside the dust filter bin (2), a partition plate (3) is installed between the first filter chamber (4) and the second filter chamber (5), a dust flow channel (201) is provided inside the first filter chamber (4) and the second filter chamber (5), the tops of the first filter chamber (4) and the second filter chamber (5) are respectively connected to a first shunt pipe (41) and a second shunt pipe (51), the first shunt pipe (41) and the second shunt pipe (51) are connected to each other There is an electromagnetic three-way valve (6), the top of the electromagnetic three-way valve (6) is connected to a dust suction pipe (61), the side wall of the dust filter bin (2) is connected to a first air outlet pipe (42) and a second air outlet pipe (52), the first air outlet pipe (42) is connected to the first filter chamber (4), the second air outlet pipe (52) is connected to the second filter chamber (5), an exhaust pipe (62) is connected between the first air outlet pipe (42) and the second air outlet pipe (52), and a first electromagnetic valve (43) and a second electromagnetic valve (53) are respectively installed on the first air outlet pipe (42) and the second air outlet pipe (52); Also includes: A filtering mechanism, the filtering mechanism comprising a filtering assembly and a discharge assembly, the filtering mechanism being used to filter gas dust and impurity dust; A discharging mechanism, the discharging mechanism is used to discharge the filtered impurities; A separation mechanism is provided, wherein the separation mechanism is used for separating dust impurities and metal impurities.

2. A workshop dust purification device according to claim 1, characterized in that: The filter assembly comprises a V-shaped filter assembly, and the V-shaped filter assembly comprises an upper filter element and a lower filter element: The upper filter element is composed of two first mounting plates (11) and filter core elements connected thereto, and the lower filter element is composed of two second mounting plates (12) and filter core elements connected thereto; The filter element is a dust filter roller (13), and a plurality of the dust filter rollers (13) are linearly distributed; A telescopic plate (14) for sealing is fixed between the first mounting plate (11) and the second mounting plate (12).

3. A workshop dust purification device according to claim 2, characterized in that: The filter assembly further comprises an opening adjustment portion of the V-shaped filter assembly, wherein the opening adjustment portion comprises: A rotating rod (7), the rotating rod (7) being rotatably connected in the dust filter bin (2), the outer wall of the rotating rod (7) being sleeved with a plurality of sets of screw members, the screw members comprising a first screw (71) and a second screw (72), and the first screw (71) and the second screw (72) being symmetrically arranged; A slider assembly, the slider assembly comprising a first slider (8) and a second slider (9), which are respectively threadedly sleeved on the outer walls of the first screw rod (71) and the second screw rod (72); A rotating shaft (10) is fixed at both ends of the first mounting plate (11) and the second mounting plate (12); the first sliding block (8) is used for rotating the rotating shaft (10) of the first mounting plate (11), and the second sliding block (9) is used for rotating the rotating shaft (10) of the second mounting plate (12); A gear rack assembly, the gear rack assembly is used to drive the rotating shaft (10) to rotate, thereby respectively braking the rotation of the first mounting plate (11) and the second mounting plate (12).

4. A workshop dust purification device according to claim 3, characterized in that: The rack and pinion assembly includes an upper filter element drive group and a lower filter element drive group; The upper filter element drive group comprises a first gear (81) and a first tooth plate (82) meshing with each other, the first gear (81) being fixedly sleeved on a rotating shaft (10) disposed in the first sliding block (8), and the first tooth plate (82) being fixed on a side wall of the partition plate (3); The lower filter element drive assembly comprises a second gear (91) and a second gear plate (92) meshing with each other, the second gear (91) being fixedly sleeved on a rotating shaft (10) disposed in the second sliding block (9); The upper filter element drive group and the lower filter element drive group are respectively located on both sides of the V-shaped filter assembly.

5. A workshop dust purification device according to claim 4, characterized in that: A driving machine (94) is fixed to the bottom surface of the dust filter bin (2), a screw rod (93) is fixed to the output end of the driving machine (94), the second tooth plate (92) slides vertically linearly on the side wall of the dust filter bin (2), and the second tooth plate (92) is threadedly sleeved on the outer wall of the screw rod (93).

6. A workshop dust purification device according to claim 5, characterized in that: The first sliding block (8) and the second sliding block (9) are arranged in a concave shape, and through holes are provided inside the first sliding block (8) and the second sliding block (9).

7. A workshop dust purification device according to claim 6, characterized in that: External threads that match the threads of the first screw rod (71) and the second screw rod (72) are provided in the through holes of the first slide block (8) and the second slide block (9).

8. A workshop dust purification device according to claim 1, characterized in that: The discharging mechanism comprises: A hopper (15), the hopper (15) being connected and mounted on the bottom surface of the dust filter bin (2), two hoppers (15) being provided, and the two hoppers (15) being respectively connected to the first filter chamber (4) and the second filter chamber (5); A discharge pipe (16), the discharge pipe (16) being connected to the ends of the two hoppers (15), and the number of the discharge pipes (16) corresponding to the number of hoppers (15); A discharge pipe (17), wherein the discharge pipe (17) is connected between the two discharge pipes (16).

9. A workshop dust purification device according to claim 8, characterized in that: Separation agencies include: A separation cylinder (18), wherein the separation cylinder (18) is installed in the housing (1); A spiral flow channel (181), wherein the spiral flow channel (181) is installed on the inner wall of the separation cylinder (18); A material guide pipe (182), the material guide pipe (182) being connected and installed at the top end of the spiral flow channel (181), the material guide pipe (182) being arranged in a slender cylindrical structure, and the diameter of the material guide pipe (182) being adapted to the diameter of the outlet at the top end of the spiral flow channel (181); A metal dust collecting hopper (183), wherein the metal dust collecting hopper (183) is installed on a side wall of the separation cylinder (18); an electromagnetic cylinder (19), the electromagnetic cylinder (19) being rotatably mounted in the separation cylinder (18), the electromagnetic cylinder (19) and the discharge pipe (17) being in the same vertical direction as the axis, and the electromagnetic cylinder (19) being in contact with the outer wall of the spiral flow channel (181); A connecting frame (191), the connecting frame (191) being fixed to the bottom surface of the electromagnetic cylinder (19), a connecting rod (192) being fixed to the connecting frame (191), and a stirring blade (193) being fixedly sleeved on the connecting rod (192); A metal magnetic isolation sheet (20), wherein the metal magnetic isolation sheet (20) is fixed on the inner wall of the electromagnetic cylinder (19); A metal magnetic isolation strip (21), wherein the metal magnetic isolation strip (21) is mounted on the outer wall of the top end of the electromagnetic cylinder (19).

10. A method for using a workshop dust purification device, using a workshop dust purification device according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1: Dust extraction: Dust is sucked in through the air inlet of the dust suction pipe (61), and enters the first filter chamber (4) or the second filter chamber (5) after passing through the electromagnetic three-way valve (6); S2: Impurity dust and gas dust filtration: The dust flow channel (21) uniformly passes through the dust filter roller (13), and the gas dust and impurity dust are initially filtered, and larger dust particles are trapped on the surface of the dust filter roller (13), and the gas impurities enter the exhaust pipe (62) through the first outlet pipe (42) or the second outlet pipe (52) and are discharged; S3: Adjustment of the spacing between dust filter rollers 13: The first screw rod (71) and the second screw rod (72) are driven to rotate by the rotating rod (7), thereby driving the first slider (8) and the second slider (9) threadedly matched therewith to move relative to each other, thereby adjusting the distance between the dust filter rollers (13) on the first mounting plate (11) and the second mounting plate (12), so as to change the gap between the dust filter rollers (13); S4: Impurities and dust discharge: The rotating rod (7) is rotated to drive the first screw rod (71) and the second screw rod (72) to rotate, thereby driving the first slider (8) and the second slider (9) to move relative to each other. The movement of the first slider (8) drives the first gear (81) to contact the first tooth plate (82) to mesh with it and rotate, thereby driving the first mounting plate (11) and the dust filter roller (13) in the middle to rotate upward. The driving machine (94) drives the screw rod (93) to rotate and drives the second tooth plate (92) to move vertically. After meshing with the second gear (91), it drives it to rotate, causing the dust filter roller (13) to flip over. Then, the material filtered and collected on the surface of the dust filter roller (13) is separated from the surface of the dust filter roller (13) under the action of gravity and the centrifugal force generated by the flipping of the dust filter roller (13), and falls into the hopper (15) below, thereby realizing the dumping operation of the dust filter roller (13); S5: Impurity and dust discharge: The impurities filtered by the dust filter roller (13) are collected by the hopper (15); under the action of gravity, the impurities are gathered into the discharge pipe (17) through the discharge pipe (16) and fall into the separation cylinder (18) for subsequent separation operations; S6: Impurity and dust separation: The material containing impurities discharged through the discharge pipe (17) enters the separation cylinder (18), and the electromagnetic cylinder (19) is energized to generate a magnetic field and rotate, which drives the connecting frame (191), the connecting rod (192) and the stirring blade (193) to rotate together. The rotation of the stirring blade (193) generates shear force and convection force on the material, so that the material is fully mixed and moved in the separation cylinder (18), and the metal dust impurities are gradually moved upward and discharged along the spiral flow channel (181) under the combined action of gravity and stirring force, thereby achieving effective separation of metal dust impurities and non-metal dust impurities.

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