Dust removal device for sand blasting machine

Abstract

The invention relates to the technical field of waste gas treatment, and discloses a dust removal device for a sand blasting machine, the dust removal device comprises a workbench, a dust removal mechanism is arranged at the top of the workbench, a separation and collection mechanism is arranged at the output end of a lifting mechanism, and sand dust waste gas enters a dust removal box through an air pump in an air inlet pipe and is adsorbed by activated carbon; when a first cylinder plate, a second cylinder plate and the activated carbon need to be cleaned at regular intervals, a first electromagnet and a second electromagnet are powered off, and then a first electric telescopic rod is driven to retract to be the shortest, so that a baffle plate is completely moved away from the position above a second through hole; therefore, the first cylinder plate, the second cylinder plate and the activated carbon can be moved out of the dust removal box through the second through holes, and the technical problem that the dust removal efficiency is low due to the fact that a filter screen and the activated carbon in an existing dust removal device are inconvenient to clean regularly in long-term use is solved.

Description

Technical Field

[0001] The invention relates to the technical field of waste gas treatment, in particular to a dust removal device for a sandblasting machine. Background Art

[0002] Sandblasting machines will produce a lot of debris and sand dust during the blasting process, forming sand and dust exhaust gas that causes air pollution to the industrial production environment. In the industrial production process, it is often necessary to use dust removal equipment to remove pollutants such as particulate matter, gas and steam in the sand and dust exhaust gas to improve the industrial production environment.

[0003] The existing dust removal device is mainly used to deal with pollution control equipment for solid particulate matter in exhaust gas. Generally, sand and dust exhaust gas is passed into the dust collector through an air pump for dust removal. When the dust collector removes dust, pollutants such as particulate matter, gas and steam in the sand and dust exhaust gas are usually adsorbed on the activated carbon on the filter. However, the filter and activated carbon need to be cleaned regularly during long-term use. If they are not cleaned in time, the particulate matter will clog the filter and activated carbon, resulting in the inability to continue to separate the particulate matter in the exhaust gas. The existing dust removal device requires the filter and activated carbon to be disassembled for cleaning, and the steps are cumbersome and time-consuming, which further reduces the dust removal efficiency. Summary of the invention

[0004] 1. Technical issues to be resolved In view of the shortcomings of the prior art, the present invention provides a dust removal device for a sandblasting machine. The present invention sets a dust removal mechanism on the top of the workbench of the present invention, and the sand and dust exhaust gas enters the dust removal box through the air pump in the air intake pipe. The pressure inside the dust removal box increases, and the sand and dust exhaust gas can not only pass through the filter holes on the cylindrical plate 2 and flow into the space surrounded by the cylindrical plate 1 and the cylindrical plate 2, but also absorb harmful substances in the sand and dust exhaust gas on the surface of the activated carbon through the adsorption effect of the activated carbon, thereby realizing the separation and removal of pollutant particles in the sand and dust exhaust gas, and then through the The sand and dust waste gas purified by the activated carbon is discharged from the dust removal box through the air pump in the air outlet pipe. When it is necessary to regularly clean the cylindrical plate 1, the cylindrical plate 2 and the activated carbon, the electromagnet 1 and the electromagnet 2 are powered off, and then the electric telescopic rod 1 is driven to be shortened to the shortest so that the shielding plate is completely removed from above the through hole 2. In this way, the cylindrical plate 1, the cylindrical plate 2 and the activated carbon can be removed from the dust removal box through the through hole 2, which solves the technical problem that the filter screen and the activated carbon in the existing dust removal device are inconvenient to be cleaned regularly during long-term use, resulting in low dust removal efficiency.

[0005] (II) Technical solution In order to solve the technical problem that the filter screen and activated carbon in the above-mentioned existing dust removal device are inconvenient to be cleaned regularly during long-term use, resulting in low dust removal efficiency, the present invention provides the following technical solution: A dust removal device for a sandblasting machine, comprising a workbench, a dust removal mechanism is arranged on the top of the workbench, a lifting mechanism is fixedly installed on the inner side of the workbench, and a separation and collection mechanism is arranged at the output end of the lifting mechanism; the dust removal mechanism comprises a dust removal box, a separation part, and a feeding part, the outer surface of the dust removal box is fixedly connected to the top of the workbench, a through hole 1 is opened on the top of the dust removal box, a through hole 2 is opened on the bottom of the dust removal box, a box door is movably arranged on one side of the dust removal box, an electric telescopic rod 1 is fixedly installed inside the dust removal box, a connecting block is arranged on the output end of the electric telescopic rod 1, and a shielding plate capable of covering the through hole 2 is arranged on one side of the connecting block, the electric telescopic rod 1 is extended to the longest by driving the shielding plate to completely cover the through hole 2, thereby making the interior of the dust removal box in a completely sealed state; the shielding plate is completely removed from the through hole 2 by driving the electric telescopic rod 1 to the shortest The dust collecting box is moved above the through hole 2; one side of the dust collecting box is connected with an air inlet pipe, and an air pump is arranged in the air inlet pipe to allow sand and dust exhaust gas to enter the dust collecting box; the separation part includes a cylindrical plate 1 and a cylindrical plate 2, both of which are made of pure iron, and filter holes are opened inside the cylindrical plate 1 and the cylindrical plate 2, and the cylindrical plate 1 is located on the inner side of the cylindrical plate 2, and the cylindrical plate 1 and the cylindrical plate 2 are vertically arranged inside the dust collecting box, and activated carbon is arranged between the outer wall of the cylindrical plate 1 and the inner wall of the cylindrical plate 2; the feeding part includes An L-shaped plate 1 and an air outlet pipe, the bottom of the L-shaped plate 1 is fixedly connected to the top of the dust removal box, an electric telescopic rod 2 is fixedly installed on the inner side of the L-shaped plate 1, the output end of the electric telescopic rod 2 is provided with a connecting plate located above the dust removal box, one end of the air outlet pipe passes through a through hole 1 and extends into the dust removal box and is connected with the dust removal box, a section of telescopic hose is provided inside the air outlet pipe and the telescopic hose is located on the upper side of the dust removal box, the outer surface of the air outlet pipe is fixedly connected to the connecting plate, and the bottom of the connecting plate is fixedly connected to cylindrical plates 3 and 4.

[0006] Preferably, electromagnet 1 is embedded and installed on the inner surface of cylindrical plate 3, and electromagnet 2 is embedded and installed on the outer surface of cylindrical plate 4. The bottoms of cylindrical plate 3 and cylindrical plate 4 both extend into the interior of the dust removal box through through hole 1, and the circumferential outer surface of cylindrical plate 4 is slidably connected to the inner wall of through hole 1.

[0007] Preferably, the cylindrical plate three is located at the top between the cylindrical plate one and the cylindrical plate two, the electromagnet one is close to the top of the outer wall of the cylindrical plate one and can absorb the top of the cylindrical plate one when energized, the cylindrical plate four is located at the top between the cylindrical plate one and the cylindrical plate two, the electromagnet two is close to the top of the inner wall of the cylindrical plate two and can absorb the top of the cylindrical plate two when energized.

[0008] Preferably, the separation and collection mechanism includes an installation box, a power assembly, a vibration assembly, and a round rod. The bottom of the installation box is fixedly connected to the output end of the lifting mechanism. A through hole three is opened on the top of the installation box. The circumferential outer surface of the round rod is provided with steel wire bristles. The steel wire bristles are made of steel wires of different specifications and high toughness. They have a certain hardness and toughness and are suitable for removing activated carbon particles, particulate matter in sand and dust exhaust gas, gas, steam and other pollutants from the uneven surface of cylindrical plate one and cylindrical plate two. The power assembly includes a motor and a rotating rod one. The motor is fixedly mounted on the inner bottom surface of the installation box. Two rotating rods are symmetrically arranged. The rotating rod one passes through the installation box and the bottom of the rotating rod one is rotatably mounted on the inner bottom surface of the installation box.

[0009] Preferably, the top of the rotating rod one is fixedly connected with a horizontal plate, both ends of the horizontal plate are fixedly connected with vertical plates, a ball is rotatably installed on the side of the vertical plate away from the horizontal plate, and the ball can rotate on its own, and the output end of the motor is fixedly connected with the rotating rod two, the rotating rod two is vertically arranged, and the rotating rod two passes through the through hole three.

[0010] Preferably, two transmission parts located in the installation box are arranged on the outer sides of the rotating rod 1 and the rotating rod 2, and the transmission parts include pulley 1 and pulley 2, the pulley 1 is fixedly connected to the circumferential outer surface of the rotating rod 2, the pulley 2 is fixedly connected to the circumferential outer surface of the rotating rod 1, and the outer sides of the pulleys 1 and 2 are movably connected with belts.

[0011] Preferably, the power assembly also includes a fixed tube, the bottom of which is fixedly connected to the top of the installation box, the fixed tube is located directly above the through hole three, a movable tube is slidably installed on the inner wall of the fixed tube, the top of the movable tube extends out of the fixed tube, and the top of the movable tube is rotatably connected to a collecting box, the collecting box is a round tube structure with an open top, a closed bottom, and a hollow interior, and the bottom of the round rod is fixedly connected to the inner bottom surface of the collecting box.

[0012] Preferably, the inner wall of the fixed tube is fixedly connected to an L-shaped rod, the top of the L-shaped rod is rotatably connected to a rotating rod three, the circumferential outer surface of the rotating rod two is fixedly connected to a bevel gear one, the circumferential outer surface of the rotating rod three is fixedly connected to a bevel gear two and a gear, the bottom of the collecting box is fixedly connected to a vertical rod, one side of the vertical rod is fixedly connected to a rack, the bevel gear one is meshingly connected to the bevel gear two, and the gear is meshingly connected to the rack.

[0013] Preferably, an arc-shaped door body is movably installed on the circumferential inner surface of the collecting box, a sliding groove is provided on the inner wall of the fixed tube, a slider is provided on the outer surface of the movable tube, and the slider is slidably installed in the sliding groove, a triangular rod is fixedly connected to the bottom of the collecting box, a triangular groove is provided on the top of the rotating rod 2, the triangular rod is slidably connected in the triangular groove and the outer wall of the triangular rod is always close to the inner wall of the triangular groove.

[0014] Preferably, two vibration components are symmetrically arranged, and the vibration components include an L-shaped plate 2, the bottom of the L-shaped plate 2 is fixedly connected to the outer surface of the installation box, one side of the L-shaped plate 2 is fixedly connected to four cross bars, the end of the cross bar away from the L-shaped plate 2 is provided with a spring, the inner side of the spring is provided with a telescopic rod, the end of the spring away from the cross bar is provided with a connecting plate, an arc guide plate is fixedly connected between the two connecting plates, a rubber ball is provided in the middle of the arc concave surface of the arc guide plate, the rubber ball is made of elastic rubber material, the rubber ball can be inserted into the filter hole, and the rubber ball can squeeze out pollutants such as activated carbon particles and particulate matter in sand and dust exhaust gas from the inner wall of the filter hole, the arc concave surfaces of the two arc guide plates are arranged close to each other, and the bottoms of the two arc guide plates are located on the inner side of the collection box.

[0015] (III) Beneficial effects Compared with the prior art, the present invention provides a dust removal device for a sandblasting machine, which has the following beneficial effects: 1. The present invention arranges a dust removal mechanism on the top of the workbench, and the sand and dust exhaust gas enters the dust removal box through the air pump in the air inlet pipe, and the internal pressure of the dust removal box increases. The sand and dust exhaust gas can not only pass through the filter hole on the cylindrical plate 2 and flow into the space surrounded by the cylindrical plate 1 and the cylindrical plate 2, but also adsorb the harmful substances in the sand and dust exhaust gas on the surface of the activated carbon through the adsorption effect of the activated carbon, thereby realizing the separation and removal of pollutant particles in the sand and dust exhaust gas, and then the sand and dust exhaust gas purified by the activated carbon is discharged from the dust removal box through the air pump in the air outlet pipe. When it is necessary to regularly clean the cylindrical plate 1, the cylindrical plate 2 and the activated carbon, the electromagnet 1 and the electromagnet 2 are powered off, and then the electric telescopic rod 1 is driven to be shortened to the shortest to completely remove the shielding plate from above the through hole 2, so that the cylindrical plate 1, the cylindrical plate 2 and the activated carbon can be removed from the dust removal box through the through hole 2, thereby solving the technical problem that the filter screen and the activated carbon in the existing dust removal device are inconvenient to be disassembled for regular cleaning during long-term use, resulting in low dust removal efficiency.

[0016] 2. The present invention is provided with a lifting mechanism fixedly installed on the inner side of the workbench, and a separation and collection mechanism is arranged at the output end of the lifting mechanism. When all the activated carbon between the cylindrical plate 1 and the cylindrical plate 2 falls into the collection box, the electromagnet 1 and the electromagnet 2 are controlled to be powered off, and the motor is driven to reciprocate and reverse at the same time, and the motor drives the rotating rod 2 to reciprocate and reverse, and the rotating rod 2 reciprocates and reverses when it reciprocates and reverses, and the triangular rod reciprocates and reverses when it reciprocates and reverses, and the collection box is driven to reciprocate and reverse when the collection box reciprocates and reverses, and the round rod is driven to reciprocate and reverse when it reciprocates and reverses, and the wire brush is driven to reciprocate and reverse when the round rod is reciprocated and reversed. When cylindrical plate one and cylindrical plate two fall between the arc concave surfaces of the two arc guide plates through through hole two, the round rod is always located between the outer wall of cylindrical plate one and the inner wall of cylindrical plate two, so that during the falling process of cylindrical plate one and cylindrical plate two, the wire brush rotates and brushes the surfaces of cylindrical plate one and cylindrical plate two, effectively removing pollutants such as activated carbon particles and particulate matter in sand and dust exhaust gas on the surfaces of cylindrical plate one and cylindrical plate two, thereby saving the need for subsequent manual removal of pollutants such as activated carbon particles and particulate matter in sand and dust exhaust gas on the surfaces of cylindrical plate one and cylindrical plate two, thereby increasing the practicality of the device.

[0017] 3. The present invention provides a power component, and a rubber ball is provided in the middle of the arc concave surface of the arc guide plate. When all the activated carbon between the cylindrical plate 1 and the cylindrical plate 2 falls into the collecting box, the electromagnet 1 and the electromagnet 2 are controlled to be de-energized, and the motor is driven to reciprocate forward and reverse at the same time. During the falling process of the cylindrical plate 1 and the cylindrical plate 2, the motor drives the rotating rod 2 to reciprocate forward and reverse, so that the wire brush bristles reciprocate forward and reverse and move up and down at the same time, so that the wire brush bristles rotate and brush the surfaces of the cylindrical plate 1 and the cylindrical plate 2 and brush up and down at the same time, so that the rubber ball can be reciprocated and inserted into the filter holes on the cylindrical plate 2 242, and the pollutants such as the activated carbon particles and the particulate matter in the sand and dust exhaust gas are squeezed out from the inner wall of the filter hole, so as to further effectively remove the pollutants such as the activated carbon particles and the particulate matter in the sand and dust exhaust gas on the surface of the cylindrical plate 1 and the cylindrical plate 2, thereby further increasing the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of a dust removal device for a sandblasting machine of the present invention; Figure 2 A schematic diagram of a three-dimensional structure of the dust removal mechanism of the present invention from one perspective; Figure 3 for Figure 2 A partial enlarged view of the middle part; Figure 4 It is a three-dimensional structural schematic diagram of the dust removal mechanism of the present invention from another viewing angle; Figure 5 for Figure 4 A partial enlarged view of point B in the middle; Figure 6It is a schematic diagram of the three-dimensional structure of the dust removal box of the present invention; Figure 7 It is a schematic diagram of the three-dimensional structure of the separation part of the present invention; Figure 8 It is a schematic diagram of a three-dimensional structure in which a cylindrical plate 3, a cylindrical plate 4, an electromagnet 1 and an electromagnet 2 cooperate with each other in the present invention; Fig. 9 It is a top view of the matching of the cylindrical plate 1, the cylindrical plate 2, the air outlet pipe, the cylindrical plate 3, the cylindrical plate 4 and the cylindrical plate 5 of the present invention; Fig.10 It is a schematic diagram of a three-dimensional structure in which the electric telescopic rod 1, the connecting block and the shielding plate of the present invention are connected; Fig.11 A schematic diagram of the three-dimensional structure of the separation and collection mechanism of the present invention from one perspective; Fig.12 It is a three-dimensional structural schematic diagram of the separation and collection mechanism of the present invention from another viewing angle; Fig.13 It is a schematic diagram of a three-dimensional structure in which the installation box, the power assembly, the round rod and the steel wire bristles of the present invention are connected; Fig.14 for Fig.13 A partial enlarged view of point C in the middle; Fig.15 A schematic diagram of a three-dimensional structure of a power assembly of the present invention from one perspective; Fig.16 for Fig.15 A partial enlarged view of point D in the middle; Fig.17 It is a three-dimensional structural schematic diagram of the power assembly of the present invention from another viewing angle; Fig.18 for Fig.17 A partial enlarged view of point E in the middle; Fig.19 for Fig.17 A partial enlarged view of point F in the middle; Fig. 20 It is a schematic diagram of the three-dimensional structure of the vibration component of the present invention; Fig.21 for Fig. 20 A partial enlarged view of point G in the middle.

[0019] Fig. 22 It is a schematic diagram of a three-dimensional structure in which the second rotating rod is connected to the triangular rod of the present invention; Fig.23 It is a schematic diagram of the three-dimensional structure of the rotating rod 2 of the present invention; In the figure: 1-workbench, 2-dust removal mechanism, 3-lifting mechanism, 4-separation and collection mechanism, 5-installation box, 6-power assembly, 7-vibration assembly, 8-round rod, 9-wire brush, 21-dust removal box, 22-through hole 1, 23-through hole 2, 24-separation part, 25-feeding part, 26-box door, 27-electric telescopic rod 1, 28-connecting block, 29-shielding plate, 210-intake pipe, 241-cylindrical plate 1, 242-cylindrical plate 2, 243-filter hole, 251-L-shaped plate 1, 252-electric telescopic rod 2, 253-connecting plate, 254-exhaust pipe, 255-telescopic hose, 256-cylindrical plate 3, 257-cylindrical plate 4, 258-electromagnet 1, 259-electromagnet 2 , 51-through hole three, 61-motor, 62-rotating rod one, 63-horizontal plate, 64-vertical plate, 65-ball, 66-rotating rod two, 67-transmission parts, 68-fixed tube, 69-movable tube, 610-collection box, 611-L-shaped rod, 612-rotating rod three, 613-bevel gear one, 614-bevel gear two, 615-gear, 616-vertical rod, 617-rack, 618-arc door body, 619-slide, 620-slider, 621-triangular rod, 622-triangular groove, 671-pulley one, 672-pulley two, 673-belt, 71-L-shaped plate two, 72-horizontal rod, 73-spring, 74-telescopic rod, 75-connecting plate, 76-arc guide plate, 77-rubber ball. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] Embodiment 1 See also Figure 1-Figure 21 A dust removal device for a sandblasting machine includes a workbench 1, and a dust removal mechanism 2 is arranged on the top of the workbench 1. The dust removal mechanism 2 includes a dust removal box 21, a through hole 1 22, a through hole 23, a separation part 24, a feeding part 25, a box door 26, an electric telescopic rod 1 27, a connecting block 28, a shielding plate 29, and an air intake pipe 210. The outer surface of the dust removal box 21 is fixedly connected to the top of the workbench 1, and a through hole 1 22 is provided on the top of the dust removal box 21, and a through hole 23 is provided on the bottom of the dust removal box 21. One side of the dust removal box 21 is connected to an air intake pipe 210, and an air pump is arranged in the air intake pipe 210 to allow sand and dust exhaust gas to enter the dust removal box 21.

[0022] A door 26 is movably provided on one side of the dust removal box 21. The interior of the dust removal box 21 can be operated by opening the door 26, and the interior of the dust removal box 21 is completely sealed by closing the door 26. An electric telescopic rod 27 is fixedly installed inside the dust removal box 21. A connecting block 28 is provided at the output end of the electric telescopic rod 27. A shielding plate 29 capable of covering the through hole 23 is provided on one side of the connecting block 28. The shielding plate 29 is completely covered by the through hole 23 by driving the electric telescopic rod 27 to extend to the longest length, thereby making the interior of the dust removal box 21 completely sealed. The shielding plate 29 is completely removed from above the through hole 23 by driving the electric telescopic rod 27 to shrink to the shortest length. The electric telescopic rod 27 is a prior art, and this solution will not be elaborated on.

[0023] The separation part 24 includes a cylindrical plate 1 241, a cylindrical plate 242, and a filter hole 243. The cylindrical plate 1 241 and the cylindrical plate 2 242 are both made of pure iron. The filter hole 243 is opened inside the cylindrical plate 1 241 and the cylindrical plate 2 242, and the cylindrical plate 1 241 is located inside the cylindrical plate 2 242. The cylindrical plate 1 241 and the cylindrical plate 2 242 are both vertically arranged inside the dust removal box 21. A large amount of activated carbon is arranged between the outer wall of the cylindrical plate 1 241 and the inner wall of the cylindrical plate 2 242, and the activated carbon particles cannot pass through the filter hole 243.

[0024] The feeding part 25 includes an L-shaped plate 1 251, an electric telescopic rod 252, a connecting plate 253, an air outlet pipe 254, a telescopic hose 255, a cylindrical plate 3 256, a cylindrical plate 4 257, an electromagnet 1 258, and an electromagnet 2 259. The bottom of the L-shaped plate 1 251 is fixedly connected to the top of the dust removal box 21, and the electric telescopic rod 252 is fixedly installed on the inner side of the L-shaped plate 1 251. The output end of the electric telescopic rod 252 is provided with a connecting plate 253 located above the dust removal box 21. The connecting plate 253 moves up and down above the dust removal box 21 by driving the electric telescopic rod 252 to extend or shorten. The electric telescopic rod 252 is a prior art, and this solution will not be described in detail.

[0025] One end of the air outlet pipe 254 passes through the through hole 22 and extends into the dust removal box 21 to be connected with the dust removal box 21. The part of the air outlet pipe 254 located in the dust removal box 21 is located at the upper part of the inner side of the cylindrical plate 241. An air pump is arranged in the air outlet pipe 254 to discharge the purified sand and dust exhaust gas in the cylindrical plate 241 from the dust removal box 21.

[0026] A section of telescopic hose 255 is arranged inside the air outlet pipe 254, and the telescopic hose 255 is located on the upper side of the dust removal box 21. The outer surface of the air outlet pipe 254 is fixedly connected to the connecting plate 253. When the connecting plate 253 moves upward, the telescopic hose 255 shortens; when the connecting plate 253 moves downward, the telescopic hose 255 lengthens. The bottom of the connecting plate 253 is fixedly connected with a cylindrical plate 3 256 and a cylindrical plate 4 257. The cylindrical plate 3 256 is located on the inner side of the cylindrical plate 4 257. The cylindrical plates 3 256 and 4 257 move up and down together with the connecting plate 253. The tops of the cylindrical plates 3 256 and 4 257 are movably provided with a cover plate for sealing the dust removal box 21.

[0027] The inner surface of the cylindrical plate 3 256 is embedded with an electromagnet 1 258, which is an arc-shaped structure and can absorb pure iron when powered on. The outer surface of the cylindrical plate 4 257 is embedded with an electromagnet 259, which is an arc-shaped structure and can absorb pure iron when powered on. The bottoms of the cylindrical plate 3 256 and the cylindrical plate 4 257 both extend through the through hole 1 22 to the inside of the dust removal box 21, and the outer circumferential surface of the cylindrical plate 4 257 is slidably connected to the inner wall of the through hole 1 22.

[0028] Cylindrical plate three 256 is located at the top between cylindrical plate one 241 and cylindrical plate two 242, electromagnet one 258 is close to the top of the outer wall of cylindrical plate one 241 and can absorb the top of cylindrical plate one 241 when electromagnet one 258 is energized, cylindrical plate four 257 is located at the top between cylindrical plate one 241 and cylindrical plate two 242, electromagnet two 259 is close to the top of the inner wall of cylindrical plate two 242 and can absorb the top of cylindrical plate two 242 when electromagnet two 259 is energized.

[0029] The existing dust removal device is mainly used to deal with pollution control equipment of solid particulate matter in exhaust gas. Generally, sand and dust exhaust gas is passed into the dust collector for dust removal through an air pump. When the dust collector removes dust, pollutants such as particulate matter, gas and steam in the sand and dust exhaust gas are usually adsorbed on the activated carbon on the filter net. However, the filter net and activated carbon need to be cleaned regularly during long-term use. The filter net and activated carbon of the existing dust removal device are not convenient to clean, resulting in low dust removal efficiency.

[0030] The working principle and use process of the embodiment of the present invention are as follows: Step 1: First, pour a large amount of activated carbon between the cylindrical plate 3 256 and the cylindrical plate 4 257, and the activated carbon falls into the cylindrical plate 1 241 and the cylindrical plate 2 242 by gravity until the activated carbon completely fills the cylindrical plate 1 241 and the cylindrical plate 2 242, and then cover the top of the cylindrical plate 3 256 and the cylindrical plate 4 257 with a cover plate to make the dust removal box 21 in a sealed state (at this time, the electromagnet 1 258 and the electromagnet 2 259 are both energized); Step 2: Then the sand and dust exhaust gas enters the dust removal box 21 through the air pump in the air inlet pipe 210, and the internal pressure of the dust removal box 21 increases. The sand and dust exhaust gas can not only pass through the filter hole 243 on the cylindrical plate 242 and flow into the space surrounded by the cylindrical plate 1 241 and the cylindrical plate 2 242, but also adsorb the harmful substances in the sand and dust exhaust gas on the surface of the activated carbon through the adsorption effect of the activated carbon, thereby realizing the separation and removal of pollutant particles in the sand and dust exhaust gas (activated carbon has a large specific surface area and good adsorption performance, and can effectively remove organic matter, sulfide and nitride and other pollutants in the exhaust gas), and then the sand and dust exhaust gas purified by the activated carbon is discharged from the dust removal box 21 through the air pump in the air outlet pipe 254; Step three: When it is necessary to regularly clean the cylindrical plate 1 241, the cylindrical plate 242 and the activated carbon, cut off the power to the electromagnet 1 258 and the electromagnet 2 259, and then drive the electric telescopic rod 1 27 to the shortest position so that the shielding plate 29 is completely removed from above the through hole 23, so that the cylindrical plate 1 241, the cylindrical plate 242 and the activated carbon can be removed from the dust removal box 21 through the through hole 23.

[0031] In summary, by setting the dust removal mechanism 2 on the top of the workbench 1, the sand and dust exhaust gas enters the dust removal box 21 through the air pump in the air inlet pipe 210, and the pressure inside the dust removal box 21 increases. The sand and dust exhaust gas can not only pass through the filter hole 243 on the cylindrical plate 242 and flow into the space surrounded by the cylindrical plate 1 241 and the cylindrical plate 242, but also through the adsorption of activated carbon, the harmful substances in the sand and dust exhaust gas are adsorbed on the surface of the activated carbon, thereby realizing the separation and removal of pollutant particles in the sand and dust exhaust gas. The sand and dust waste gas purified by the activated carbon is discharged from the dust removal box 21 through the air pump in the air outlet pipe 254. When it is necessary to regularly clean the cylindrical plate 1 241, the cylindrical plate 242 and the activated carbon, the electromagnet 1 258 and the electromagnet 2 259 are powered off, and then the electric telescopic rod 1 27 is driven to be shortened to the shortest to completely remove the shielding plate 29 from above the through hole 23, so that the cylindrical plate 1 241, the cylindrical plate 242 and the activated carbon can be removed from the dust removal box 21 through the through hole 23. The technical problem that the filter screen and the activated carbon in the existing dust removal device are inconvenient to be cleaned regularly during long-term use, resulting in low dust removal efficiency, is solved.

[0032] Embodiment 2 See also Figure 1-Figure 23 , compared with the first embodiment, the present embodiment is different from the first embodiment in that: A lifting mechanism 3 is fixedly installed on the inner side of the workbench 1, and a separation and collection mechanism 4 is arranged at the output end of the lifting mechanism 3. The lifting mechanism 3 can be an electric telescopic rod or a hydraulic telescopic rod, and the separation and collection mechanism 4 can be driven to move up and down by driving the lifting mechanism 3. The lifting mechanism 3 is a prior art, and this solution will not be described in detail.

[0033] The separation and collection mechanism 4 includes an installation box 5, a power assembly 6, a vibration assembly 7, a round rod 8, and a wire brush 9. A through hole 3 51 is provided on the top of the installation box 5, and the bottom of the installation box 5 is fixedly connected to the output end of the lifting mechanism 3, and the installation box 5 can be driven to move up and down by driving the lifting mechanism 3.

[0034] The round rod 8 is arranged vertically, and the outer circumferential surface of the round rod 8 is provided with wire bristles 9. The wire bristles 9 are made of steel wires of different specifications and high toughness, and have a certain hardness and toughness. They are suitable for removing pollutants such as activated carbon particles, particulate matter in sand and dust exhaust gas, gas and steam from the uneven surface of the cylindrical plate 1 241 and the cylindrical plate 2 242.

[0035] The power assembly 6 includes a motor 61, a fixed tube 68, a movable tube 69, a collection box 610, an arc-shaped door body 618, a triangular rod 621, and a triangular groove 622. The motor 61 is fixedly mounted on the inner bottom surface of the mounting box 5. The output end of the motor 61 is fixedly connected with a second rotating rod 66, which is vertically arranged, passes through the third through hole 51, and is located on the inner side of the fixed tube 68.

[0036] The fixed pipe 68 is vertically arranged, and the bottom of the fixed pipe 68 is fixedly connected to the top of the installation box 5, and the fixed pipe 68 is located directly above the through hole 3 51. The inner wall of the fixed pipe 68 is slidably mounted with a movable pipe 69, and the top of the movable pipe 69 extends out of the fixed pipe 68.

[0037] The top of the movable tube 69 is rotatably connected to the collecting box 610. The movable tube 69 moves up and down with the collecting box 610. The collecting box 610 can rotate by itself. The collecting box 610 is a round tube structure with an open top, a closed bottom, and a hollow interior. The bottom of the round rod 8 is fixedly connected to the inner bottom surface of the collecting box 610. When the cylindrical plate 1 241 and the cylindrical plate 242 fall, the round rod 8 is always located between the outer wall of the cylindrical plate 1 241 and the inner wall of the cylindrical plate 2 242.

[0038] An arc-shaped door body 618 is movably installed on the inner surface of the circumference of the collection box 610. The arc-shaped door body 618 can be installed on the peripheral side of the collection box 610 by bolts. By opening the arc-shaped door body 618, pollutants such as activated carbon particles, particulate matter in sand and dust exhaust gas in the collection box 610 can be centrally removed.

[0039] The bottom of the collection box 610 is fixedly connected with a triangular rod 621, and the top of the second rotating rod 66 is provided with a triangular groove 622, and the triangular rod 621 is slidably connected in the triangular groove 622, and the outer wall of the triangular rod 621 is always in close contact with the inner wall of the triangular groove 622, and the peripheral side surface of the triangular rod 621 can be in close contact with the inner wall of the triangular groove 622 to form a whole, so that when the second rotating rod 66 rotates, the triangular rod 621 is driven to rotate together. The triangular groove 622 is deep enough, and the triangular rod 621 is long enough, so that the triangular rod 621 will not slide out of the triangular groove 622 completely.

[0040] Two vibration assemblies 7 are symmetrically arranged, and the vibration assemblies 7 include an L-shaped plate 71, a cross bar 72, a spring 73, a telescopic rod 74, a connecting plate 75, and an arc guide plate 76. The L-shaped plate 71 is arranged vertically. The bottom of the L-shaped plate 71 is fixedly connected to the outer surface of the installation box 5, and one side of the L-shaped plate 71 is fixedly connected to four cross bars 72, which are symmetrically arranged and horizontally arranged.

[0041] A spring 73 is disposed at one end of the cross bar 72 away from the L-shaped plate 71. The spring 73 is disposed horizontally, one end of the spring 73 is connected to the cross bar 72, and the other end of the spring 73 is connected to the connecting plate 75. A telescopic rod 74 is disposed inside the spring 73. The telescopic rod 74 is disposed horizontally, one end of the telescopic rod 74 is fixedly connected to the cross bar 72, and the other end of the spring 73 is fixedly connected to the connecting plate 75.

[0042] The connecting plate 75 is vertically arranged, and two connecting plates 75 are arranged. An arc guide plate 76 is fixedly connected between the two connecting plates 75, and the arc guide plate 76 is vertically arranged. The arc concave surfaces of the two arc guide plates 76 are arranged close to each other, and the bottoms of the two arc guide plates 76 are located on the inner side of the collection box 610. When the cylindrical plate 1 241 and the cylindrical plate 2 242 fall through the through hole 23, the cylindrical plate 1 241 and the cylindrical plate 2 242 are always located between the arc concave surfaces of the two arc guide plates 76, and the two arc guide plates 76 limit the falling of the cylindrical plate 1 241 and the cylindrical plate 2 242. When the installation box 5 is driven to rise to the highest point by driving the lifting mechanism 3, it is convenient for the cylindrical plate 1 241 and the cylindrical plate 2 242 to fall between the arc concave surfaces of the two arc guide plates 76 when they fall through the through hole 23. When the installation box 5 is driven to descend to the lowest position by driving the lifting mechanism 3, it is convenient to take it out from between the arc concave surfaces of the two arc guide plates 76 of the cylindrical plate 1 241 and the cylindrical plate 242.

[0043] The rest of the structure is the same as that of the first embodiment.

[0044] The working principle and use process of the embodiment of the present invention are as follows: Step 1: When it is necessary to regularly clean the cylindrical plate 1 241, the cylindrical plate 242, and the activated carbon, first drive the electric telescopic rod 1 27 to be shortened to the shortest position so that the shielding plate 29 is completely removed from above the through hole 23 (at this time, the electromagnet 1 258 and the electromagnet 2 259 are powered), and the activated carbon will fall into the collection box 610 through the concave arc surfaces of the two arc guide plates 76; Step 2: When all the activated carbon between the cylindrical plate 1 241 and the cylindrical plate 242 falls into the collection box 610, the electromagnet 1 258 and the electromagnet 2 259 are powered off, and the motor 61 is started at the same time. The motor 61 drives the rotating rod 2 66 to rotate, and the rotating rod 2 66 drives the triangular rod 621 to rotate when the rotating rod 621 rotates, and the collecting box 610 is driven to rotate when the collecting box 610 rotates. The round rod 8 is driven to rotate when the round rod 8 rotates, and the wire brush 9 is driven to rotate. Since the cylindrical plate 1 241 and the cylindrical plate 242 fall into the arc of the two arc guide plates 76 through the through hole 23, When the cylindrical plates 1 241 and 242 are between the concave surfaces, the round rod 8 is always located between the outer wall of the cylindrical plate 1 241 and the inner wall of the cylindrical plate 2 242, so that when the cylindrical plates 1 241 and 242 are falling, the wire brush 9 rotates and brushes the surfaces of the cylindrical plates 1 241 and 242, thereby effectively removing pollutants such as activated carbon particles, particulate matter in sand and dust exhaust gas, etc. on the surfaces of the cylindrical plates 1 241 and 242, thereby saving the need for subsequent manual removal of pollutants such as activated carbon particles, particulate matter in sand and dust exhaust gas, etc. on the surfaces of the cylindrical plates 1 241 and 242, thereby increasing the practicability of the device.

[0045] In summary, by fixing a lifting mechanism 3 on the inner side of the workbench 1, a separation and collection mechanism 4 is provided at the output end of the lifting mechanism 3. When all the activated carbon between the cylindrical plate 1 241 and the cylindrical plate 2 242 falls into the collection box 610, the electromagnet 1 258 and the electromagnet 2 259 are controlled to be powered off, and the motor 61 is driven to reciprocate and reverse at the same time. The motor 61 drives the rotating rod 2 66 to reciprocate and reverse. When the rotating rod 2 66 reciprocates and reverses, it drives the triangular rod 621 to reciprocate and reverse. When the triangular rod 621 reciprocates and reverses, it drives the collection box 610 to reciprocate and reverse. When the collection box 610 reciprocates and reverses, it drives the round rod 8 to reciprocate and reverse. When the round rod 8 reciprocates and reverses, it drives the wire brush 9 to reciprocate and reverse. When the cylindrical plate 1 241 and the cylindrical plate 242 fall between the arc concave surfaces of the two arc guide plates 76 through the through hole 23, the round rod 8 is always located between the outer wall of the cylindrical plate 1 241 and the inner wall of the cylindrical plate 242, so that the wire brush 9 rotates and brushes the surface of the cylindrical plate 1 241 and the cylindrical plate 242 during the falling process, effectively removing pollutants such as activated carbon particles and particulate matter in sand and dust exhaust gas on the surface of the cylindrical plate 1 241 and the cylindrical plate 242, thereby saving the need for subsequent manual removal of pollutants such as activated carbon particles and particulate matter in sand and dust exhaust gas on the surface of the cylindrical plate 1 241 and the cylindrical plate 242, thereby increasing the practicality of the device.

[0046] Embodiment 3 See also Figure 1-Figure 23 , compared with the second embodiment, the present embodiment is different from the second embodiment in that: The power assembly 6 also includes a rotating rod 1 62, a horizontal plate 63, a vertical plate 64, a sphere 65, a rotating rod 2 66, a transmission member 67, an L-shaped rod 611, a rotating rod 3 612, a bevel gear 1 613, a bevel gear 2 614, a gear 615, a vertical rod 616, a rack 617, a slide groove 619, and a slider 620.

[0047] The rotating rod 1 62 is vertically arranged, and two rotating rods 1 62 are symmetrically arranged, and the two rotating rods 1 62 are respectively located on both sides of the motor 61. The rotating rod 1 62 passes through the installation box 5, and the bottom of the rotating rod 1 62 is rotatably installed on the inner bottom surface of the installation box 5. The top of the rotating rod 1 62 is fixedly connected with a horizontal plate 63, and the horizontal plate 63 is horizontally arranged. Both ends of the horizontal plate 63 are fixedly connected with vertical plates 64, and a ball 65 is rotatably installed on the side of the vertical plate 64 away from the horizontal plate 63, and the ball 65 can rotate.

[0048] Two transmission members 67 are arranged outside the rotating rod 1 62 and the rotating rod 2 66, and both transmission members 67 are located in the installation box 5. The transmission member 67 includes a pulley 1 671, a pulley 2 672, and a belt 673. The pulley 1 671 is fixedly connected to the outer circumferential surface of the rotating rod 2 66, and the pulley 2 672 is fixedly connected to the outer circumferential surface of the rotating rod 1 62. The outer sides of the pulley 1 671 and the pulley 2 672 are movably connected with the belt 673. The pulley 1 671 and the pulley 2 672 are synchronously rotated by the transmission action of the belt 673, so that the rotating rod 2 66 can drive the rotating rod 1 62 to rotate.

[0049] The inner wall of the fixed tube 68 is fixedly connected to an L-shaped rod 611, and the L-shaped rod 611 is vertically arranged. The top of the L-shaped rod 611 is rotatably connected to a rotating rod three 612, and the rotating rod three 612 is horizontally arranged. The circumferential outer surface of the rotating rod two 66 is fixedly connected to a bevel gear one 613, and the bevel gear one 613 rotates with the rotating rod two 66. The circumferential outer surface of the rotating rod three 612 is fixedly connected to a bevel gear two 614 and a gear 615, and the bevel gear two 614, the gear 615, and the rotating rod three 612 rotate together. The bottom of the collection box 610 is fixedly connected to a vertical rod 616, and one side of the vertical rod 616 is fixedly connected to a rack 617, and the rack 617 is vertically arranged. The bevel gear one 613 is meshedly connected with the bevel gear two 614, and the gear 615 is meshedly connected with the rack 617.

[0050] A slide groove 619 is provided on the inner wall of the fixed tube 68 , and a slider 620 is provided on the outer surface of the movable tube 69 . The slider 620 is slidably installed in the slide groove 619 , and the slider 620 cannot slide out of the slide groove 619 , thereby preventing the movable tube 69 from sliding out of the fixed tube 68 .

[0051] The vibration component 7 also includes an arc guide plate 76, and a rubber ball 77 is arranged in the middle of the arc concave surface of the arc guide plate 76. The rubber ball 77 is made of elastic rubber material. The rubber ball 77 can be inserted into the filter hole 243. At the same time, the rubber ball 77 can squeeze out pollutants such as activated carbon particles and particulate matter in sand and dust exhaust gas from the inner wall of the filter hole 243.

[0052] The rest of the structure is the same as that of the second embodiment.

[0053] The working principle and use process of the embodiment of the present invention are as follows: When all the activated carbon between the cylindrical plate 1 241 and the cylindrical plate 2 242 falls into the collection box 610, the control electromagnet 1 258 and the electromagnet 2 259 are powered off, and the motor 61 is driven to rotate forward and reverse at the same time, and the motor 61 drives the rotating rod 2 66 to rotate forward and reverse, and the rotating rod 2 66 drives the triangular rod 621 to rotate forward and reverse, and the triangular rod 621 drives the collection box 610 to rotate forward and reverse, and the collection box 610 drives the round rod 8 to rotate forward and reverse. When the round rod 8 reciprocates in forward and reverse rotation, it drives the wire brush 9 to reciprocate in forward and reverse rotation. When the cylindrical plate 1 241 and the cylindrical plate 242 fall between the arc concave surfaces of the two arc guide plates 76 through the through hole 23, the round rod 8 is always located between the outer wall of the cylindrical plate 1 241 and the inner wall of the cylindrical plate 242, so that the steel brush 9 rotates and brushes the surface of the cylindrical plate 1 241 and the cylindrical plate 242 during the falling process; When the rotating rod 2 66 reciprocates forward and reverse, it will drive the pulley 1 671 to reciprocate forward and reverse. When the pulley 1 671 reciprocates forward and reverse, it drives the pulley 2 672 to reciprocate forward and reverse through the belt 673. When the pulley 2 672 reciprocates forward and reverse, it drives the rotating rod 1 62 to reciprocate forward and reverse. When the rotating rod 1 62 reciprocates forward and reverse, it drives the cross plate 63 to reciprocate forward and reverse. When the cross plate 63 reciprocates forward and reverse, it drives the two balls 65 to repeatedly squeeze the arc convex surface of the arc guide plate 76, and then repeatedly compress the spring 73. Due to the tension of the spring 73, the two arc guide plates 76 reciprocate and move away from each other, so that when the cylindrical plate 1 241 and the cylindrical plate 242 fall, the rubber ball 77 can be reciprocated and inserted into the filter hole 243, and the pollutants such as activated carbon particles and particles in the sand and dust exhaust gas are squeezed out from the inner wall of the filter hole 243. When the rotating rod 2 66 reciprocates forward and reverse, it will drive the bevel gear 1 613 to reciprocate forward and reverse, when the bevel gear 1 613 reciprocates forward and reverse, it will drive the bevel gear 2 614 to reciprocate forward and reverse, when the bevel gear 2 614 reciprocates forward and reverse, it will drive the rotating rod 3 612 to reciprocate forward and reverse, when the rotating rod 3 612 reciprocates forward and reverse, it will drive the gear 615 to reciprocate forward and reverse, when the gear 615 reciprocates forward and reverse, it will drive the rack 617 to move up and down, when the rack 617 reciprocates up and down, it will drive the vertical rod 616 to move up and down, when the vertical rod 616 reciprocates up and down, it will drive the collection box 610 to move up and down, when the collection box 610 reciprocates up and down, it will drive the round rod 8 to move up and down, when the round rod 8 reciprocates up and down, it will drive the wire bristles 9 to move up and down, so that the wire bristles 9 reciprocate forward and reverse at the same time The cylindrical plates 1 241 and 242 move back and forth up and down. When the cylindrical plates 1 241 and 242 fall into the arc concave surfaces of the two arc guide plates 76 through the through hole 23, the round rod 8 is always located between the outer wall of the cylindrical plate 1 241 and the inner wall of the cylindrical plate 242. As a result, the steel brush bristles 9 rotate and brush the surfaces of the cylindrical plates 1 241 and 242 up and down while the cylindrical plates 1 241 and 242 are falling. This further effectively removes pollutants such as activated carbon particles and particulate matter in sand and dust exhaust gas on the surfaces of the cylindrical plates 1 241 and 242, thereby eliminating the need for manual removal of pollutants such as activated carbon particles and particulate matter in sand and dust exhaust gas on the surfaces of the cylindrical plates 1 241 and 242, thereby further increasing the practicality of the device.

[0054] In summary, by setting the power assembly 6, a rubber ball 77 is set in the middle of the arc concave surface of the arc guide plate 76. When all the activated carbon between the cylindrical plate 1 241 and the cylindrical plate 242 falls into the collection box 610, the electromagnet 1 258 and the electromagnet 2 259 are controlled to be powered off, and the motor 61 is driven to reciprocate forward and reverse. During the falling process of the cylindrical plate 1 241 and the cylindrical plate 242, the motor 61 drives the rotating rod 2 66 to reciprocate forward and reverse, thereby causing the wire brush 9 to reciprocate forward and reverse while moving up and down. The rubber ball 77 is reciprocatedly inserted into the filter hole 243 on the cylindrical plate 242, and the pollutants such as the activated carbon particles and the particles in the sand and dust exhaust gas are squeezed out from the inner wall of the filter hole 243, thereby further effectively removing the pollutants such as the activated carbon particles and the particles in the sand and dust exhaust gas on the surface of the cylindrical plate 1 241 and the cylindrical plate 242, thereby further increasing the practicality of the device.

[0055] Although 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 the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A dust removal device for a sandblasting machine, comprising a workbench (1), characterized in that: A dust removal mechanism (2) is arranged on the top of the workbench (1), a lifting mechanism (3) is fixedly installed on the inner side of the workbench (1), and a separation and collection mechanism (4) is arranged at the output end of the lifting mechanism (3); The dust removal mechanism (2) comprises a dust removal box (21), a separation portion (24), and a feeding portion (25); the outer surface of the dust removal box (21) is fixedly connected to the top of the workbench (1); a through hole 1 (22) is provided at the top of the dust removal box (21); a through hole 2 (23) is provided at the bottom of the dust removal box (21); a box door (26) is movably provided on one side of the dust removal box (21); an electric telescopic rod 1 (27) is fixedly installed inside the dust removal box (21); a connecting block (28) is provided at the output end of the electric telescopic rod 1 (27); a shielding plate (29) capable of covering the through hole 2 (23) is provided on one side of the connecting block (28); and an air intake pipe (210) is connected to one side of the dust removal box (21); The separation portion (24) comprises a cylindrical plate 1 (241) and a cylindrical plate 2 (242), the cylindrical plate 1 (241) and the cylindrical plate 2 (242) are both made of pure iron, the cylindrical plate 1 (241) and the cylindrical plate 2 (242) are both provided with filter holes (243), the cylindrical plate 1 (241) is located on the inner side of the cylindrical plate 2 (242), the cylindrical plate 1 (241) and the cylindrical plate 2 (242) are both vertically arranged inside the dust removal box (21), and activated carbon is arranged between the outer wall of the cylindrical plate 1 (241) and the inner wall of the cylindrical plate 2 (242); The feeding portion (25) comprises an L-shaped plate 1 (251) and an air outlet pipe (254); the bottom of the L-shaped plate 1 (251) is fixedly connected to the top of the dust removal box (21); an electric telescopic rod 2 (252) is fixedly installed on the inner side of the L-shaped plate 1 (251); an output end of the electric telescopic rod 2 (252) is provided with a connecting plate (253) located above the dust removal box (21); one end of the air outlet pipe (254) passes through the through hole 1 (22) and extends into the dust removal box (21) to communicate with the dust removal box (21); a section of telescopic hose (255) is provided inside the air outlet pipe (254) and the telescopic hose (255) is located on the upper side of the dust removal box (21); the outer surface of the air outlet pipe (254) is fixedly connected to the connecting plate (253); and the bottom of the connecting plate (253) is fixedly connected to a cylindrical plate 3 (256) and a cylindrical plate 4 (257).

2. A dust removal device for a sandblasting machine according to claim 1, characterized in that: The inner surface of the cylindrical plate three (256) is embedded with an electromagnet one (258), and the outer surface of the cylindrical plate four (257) is embedded with an electromagnet two (259). The bottoms of the cylindrical plate three (256) and the cylindrical plate four (257) extend through the through hole one (22) to the interior of the dust removal box (21), and the circumferential outer surface of the cylindrical plate four (257) is slidably connected to the inner wall of the through hole one (22).

3. A dust removal device for a sandblasting machine according to claim 2, characterized in that: The cylindrical plate three (256) is located at the top between the cylindrical plate one (241) and the cylindrical plate two (242); the electromagnet one (258) is closely attached to the top of the outer wall of the cylindrical plate one (241) and can absorb the top of the cylindrical plate one (241) when the electromagnet one (258) is energized; the cylindrical plate four (257) is located at the top between the cylindrical plate one (241) and the cylindrical plate two (242); the electromagnet two (259) is closely attached to the top of the inner wall of the cylindrical plate two (242) and can absorb the top of the cylindrical plate two (242) when the electromagnet two (259) is energized.

4. A dust removal device for a sandblasting machine according to claim 3, characterized in that: The separation and collection mechanism (4) comprises an installation box (5), a power assembly (6), a vibration assembly (7), and a round rod (8); the bottom of the installation box (5) is fixedly connected to the output end of the lifting mechanism (3); a through hole three (51) is provided on the top of the installation box (5); a steel brush (9) is provided on the circumferential outer surface of the round rod (8); the power assembly (6) comprises a motor (61) and a rotating rod one (62); the motor (61) is fixedly mounted on the inner bottom surface of the installation box (5); two rotating rods one (62) are symmetrically arranged; the rotating rod one (62) passes through the installation box (5) and the bottom of the rotating rod one (62) is rotatably mounted on the inner bottom surface of the installation box (5).

5. A dust removal device for a sandblasting machine according to claim 4, characterized in that: The top of the rotating rod 1 (62) is fixedly connected to a horizontal plate (63), both ends of the horizontal plate (63) are fixedly connected to vertical plates (64), a ball (65) is rotatably mounted on a side of the vertical plate (64) away from the horizontal plate (63), and the output end of the motor (61) is fixedly connected to the rotating rod 2 (66), and the rotating rod 2 (66) passes through the through hole 3 (51).

6. A dust removal device for a sandblasting machine according to claim 5, characterized in that: Two transmission members (67) located in the installation box (5) are arranged on the outer sides of the rotating rod 1 (62) and the rotating rod 2 (66). The transmission member (67) includes a belt pulley 1 (671) and a belt pulley 2 (672). The belt pulley 1 (671) is fixedly connected to the circumferential outer surface of the rotating rod 2 (66), and the belt pulley 2 (672) is fixedly connected to the circumferential outer surface of the rotating rod 1 (62). The outer sides of the belt pulley 1 (671) and the belt pulley 2 (672) are movably connected with a belt (673).

7. A dust removal device for a sandblasting machine according to claim 6, characterized in that: The power assembly (6) further comprises a fixed tube (68), the bottom of which is fixedly connected to the top of the installation box (5), the fixed tube (68) being located directly above the third through hole (51), a movable tube (69) being slidably mounted on the inner wall of the fixed tube (68), the top of which protrudes out of the fixed tube (68), the top of which is rotatably connected to a collection box (610), the collection box (610) being a round tube structure with an open top, a closed bottom and a hollow interior, the bottom of the round rod (8) being fixedly connected to the inner bottom surface of the collection box (610), 8. A dust removal device for a sandblasting machine according to claim 7, characterized in that: The inner wall of the fixed tube (68) is fixedly connected to an L-shaped rod (611), the top of the L-shaped rod (611) is rotatably connected to a rotating rod three (612), the circumferential outer surface of the rotating rod two (66) is fixedly connected to a bevel gear one (613), the circumferential outer surface of the rotating rod three (612) is fixedly connected to a bevel gear two (614) and a gear (615), the bottom of the collection box (610) is fixedly connected to a vertical rod (616), one side of the vertical rod (616) is fixedly connected to a rack (617), the bevel gear one (613) is meshingly connected to the bevel gear two (614), and the gear (615) is meshingly connected to the rack (617).

9. A dust removal device for a sandblasting machine according to claim 8, characterized in that: An arc-shaped door body (618) is movably mounted on the circumferential inner surface of the collecting box (610); a sliding groove (619) is provided on the inner wall of the fixed tube (68); a sliding block (620) is provided on the outer surface of the movable tube (69); the sliding block (620) is slidably mounted in the sliding groove (619); a triangular rod (621) is fixedly connected to the bottom of the collecting box (610); a triangular groove (622) is provided on the top of the second rotating rod (66); the triangular rod (621) is slidably connected in the triangular groove (622) and the outer wall of the triangular rod (621) is always in close contact with the inner wall of the triangular groove (622).

10. A dust removal device for a sandblasting machine according to claim 9, characterized in that: Two vibration assemblies (7) are symmetrically arranged, and the vibration assemblies (7) include an L-shaped plate (71). The bottom of the L-shaped plate (71) is fixedly connected to the outer surface of the installation box (5). One side of the L-shaped plate (71) is fixedly connected to four cross bars (72). A spring (73) is arranged at one end of the cross bar (72) away from the L-shaped plate (71). A telescopic rod (74) is arranged on the inner side of the spring (73). A connecting plate (75) is arranged at one end of the spring (73) away from the cross bar (72). An arc guide plate (76) is fixedly connected between the two connecting plates (75). A rubber ball (77) is arranged in the middle of the arc concave surface of the arc guide plate (76). The arc concave surfaces of the two arc guide plates (76) are arranged close to each other, and the bottoms of the two arc guide plates (76) are located on the inner side of the collection box (610).

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