Vibrating screen with dustproof structure

Abstract

The utility model discloses a vibrating screen with a dustproof structure, which relates to the technical field of vibrating screens and comprises a vibrating screen main body and a support frame, a second shell is fixedly connected to one side of the vibrating screen body, a dust collecting box is fixedly connected to the lower end of the second shell, an air outlet pipe is fixedly connected to the side, away from the pipeline, of the second shell, and a motor fan is fixedly connected to an inner cavity of the air outlet pipe. The side, close to the second guide rod, of the inner cavity of the second shell is rotationally connected with a second threaded rod. The second threaded rod is rotated to drive the scraper to ascend and descend, and then when the scraper moves downwards, dust and the like attached to the dustproof net can be cleaned, so that the dust and the like can be reduced or even prevented from blocking the dustproof net, and the service life of the dustproof net is prolonged. And then the influence device cleans dust on the materials conveyed into the inner cavity of the vibrating screen body, and therefore the situation that a large amount of dust is conveyed into the device along with the materials, and then normal use of the device is influenced can be avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of vibrating screen, specifically relates to a vibrating screen with dustproof structure. BACKGROUND

[0002] The vibrating screen is a kind of equipment widely used in industrial screening field, is suitable for the separation of solid in large quantities of production, the separation of different granularity in the same product, the safety screening of eliminating foreign matter and the homogenization of granule etc., and its basic structure includes dustproof cover, feed inlet, screen, net frame, discharge port, vibrating motor and shock absorbing spring etc., the vibrating screen can make the screen body produce regular vibration by the vibration force generated by motor etc., so that the granular material to be screened forms a thin layer on the screen body and moves in multiple directions, including upwards, downwards and horizontally, in this process, smaller particles can pass through the screen hole or screen, while larger particles are blocked, thereby realizing the screening, grading and separation of granular material.

[0003] In the process of screening material by vibrating screen, dust and other small particles are often produced. These dust not only comes from the material itself, but also may be caused by equipment wear, environmental factors etc. When the material is conveyed into the vibrating screen, dust and other small particles will also enter and may accumulate on the screen or adhere to the motor and other key components. The dust accumulated on the screen can seriously affect the screening efficiency, cause screen hole blockage, so that the material cannot pass through the screen for normal grading treatment, at the same time, the dust adhered to the motor and other components can increase the load of the equipment, cause overheating of the motor, aggravate wear and tear and other problems, and further affect the normal operation and service life of the equipment.

[0004] In order to solve the problem of dust accumulation, some vibrating screens are equipped with dustproof structure, which usually includes dustproof cover, dustproof net and other components, aiming to block dust from entering the equipment interior, and protect the screen and motor and other key components from dust damage, however, the existing dustproof structure still has some deficiencies in actual application, first, the dustproof cover can block most of the dust, but some small dust can still penetrate the gap and enter the equipment interior, second, the dustproof net can filter out part of the dust, but with the passage of time, dust will continue to accumulate and block the filter screen hole, causing the ventilation performance of the dustproof structure to decline, and even completely fail, once the dustproof structure fails, dust will re-enter the equipment interior, causing greater damage to the screen and motor and other components.

[0005] The Chinese patent document CN220160510U discloses a vibrating screen with a dustproof structure, comprising a vibrating screen body, a control panel fixedly connected to the left surface of the vibrating screen body, a protective cover body arranged on the upper surface of the vibrating screen body, and support legs arranged at the bottom end of the vibrating screen body, wherein four groups of the support legs are installed at the lower end of the vibrating screen body at four corners; a side plate is installed on the left end surface of the protective cover body, the inside of the side plate is provided with a fan body, and the right surface of the protective cover body is fixedly connected with a mounting rack; but the following defects still exist in the implementation process:

[0006] The device in the above document can automatically open through the rotation of the torsion shaft of the extrusion baffle when the internal material is accumulated, and the baffle returns to the original position after the material is conveyed, thereby avoiding the problem of easy wear of the baffle and preventing dust pollution of the environment, but the device in the above document cannot process dust and the like falling on the material when conveying the material into the device, thereby reducing the entry of dust and the like into the device and then affecting the normal use of the device. Utility model content

[0007] The utility model aims at providing a vibrating screen with a dustproof structure to solve the problems in the above background art.

[0008] To solve the above technical problems, the utility model adopts the technical scheme of:

[0009] A vibrating screen with a dustproof structure, comprising a vibrating screen body and a support frame; the lower end of the vibrating screen body is fixedly connected to the upper end of the support frame, a first screen plate is fixedly connected to the middle part of the inner cavity of the vibrating screen body, a second screen plate is fixedly connected to the upper part of the inner cavity of the vibrating screen body, a buffer bin is fixedly connected to one side of the upper end of the vibrating screen body, the inner cavity of the buffer bin is communicated with the inner cavity of the vibrating screen body, a feeding hopper is fixedly connected to the upper end of the buffer bin, a pipeline is fixedly connected to one side of the buffer bin, an outer shell two is fixedly connected to one side of the vibrating screen body, a dust collection box is fixedly connected to the lower end of the outer shell two, an air outlet pipe is fixedly connected to the side of the outer shell two away from the pipeline, a motor fan is fixedly connected to the inner cavity of the air outlet pipe, a guide rod two is fixedly connected to the side of the inner cavity of the outer shell two close to the air outlet pipe, a threaded rod two is rotatably connected to the side of the inner cavity of the outer shell two close to the guide rod two, a scraper is slidably connected to the outer surface of the guide rod two, the threaded rod two is threadedly connected to the scraper, and a plurality of vibrating pumps are fixedly connected to one side of the lower part of the support frame.

[0010] The technical scheme is characterized in that when dust on the material conveyed into the device needs to be treated, the motor fan is operated to draw the gas in the inner cavity of the second shell and the inner cavity of the pipeline, and then low pressure is formed in the inner cavity of the second shell and the inner cavity of the pipeline, so that the gas in the inner cavity of the slow conveying bin flows towards the inner cavity of the pipeline, and when the material placed in the inner cavity of the feeding hopper is conveyed into the inner cavity of the vibrating screen main body through the slow conveying bin, the stirring vanes in the inner cavity of the slow conveying bin can stir the material outlet position of the feeding hopper, preventing the material from being blocked at the material outlet position of the feeding hopper, and the stirring vanes in the inner cavity of the slow conveying bin can uniformly convey the material into the inner cavity of the vibrating screen main body, so that when the material is conveyed, the dust on the material flows into the inner cavity of the pipeline together with the gas, and then the gas in the inner cavity of the pipeline is conveyed into the inner cavity of the second shell, and due to the force of the motor fan, the dust conveyed into the inner cavity of the second shell is attached to the dustproof net near the first side of the second shell, and long-term accumulation can cause the dust to block the holes of the dustproof net.

[0011] Due to the threaded connection between the second threaded rod and the scraper, the second threaded rod can drive the scraper to move up and down by rotating the second threaded rod, and the dust attached to the dustproof net can be cleaned when the scraper moves down, thereby reducing or even avoiding the dust from blocking the holes of the dustproof net and affecting the device to clean the dust on the material conveyed into the inner cavity of the vibrating screen main body, thereby avoiding a large amount of dust being conveyed into the device together with the material and affecting the normal use of the device.

[0012] Further improvement of the technical scheme of the utility model is that two slide rods are fixedly connected to one side of the inner cavity of the vibrating screen main body, two first threaded rods are rotatably connected to the side of the inner cavity of the vibrating screen main body away from the slide rods, a plurality of lifting assemblies are symmetrically and slidably connected to the inner cavity of the vibrating screen main body, the outer surfaces of the slide rods on the same side are slidably connected to the adjacent lifting assemblies, the outer surfaces of the first threaded rods on the same side are threadedly connected to the adjacent lifting assemblies, and the opposite surfaces of two lifting assemblies at the same horizontal height are fixedly connected to a blockage cleaning assembly, and the blockage cleaning assembly is slidably connected to a plurality of partitions.

[0013] The technical scheme is characterized in that when dust on the material conveyed into the device needs to be treated, the motor fan is operated to draw the gas in the inner cavity of the second shell and the inner cavity of the pipeline, and then low pressure is formed in the inner cavity of the second shell and the inner cavity of the pipeline, so that the gas in the inner cavity of the slow conveying bin flows towards the inner cavity of the pipeline, and when the material placed in the inner cavity of the feeding hopper is conveyed into the inner cavity of the vibrating screen main body through the slow conveying bin, the stirring vanes in the inner cavity of the slow conveying bin can stir the material outlet position of the feeding hopper, preventing the material from being blocked at the material outlet position of the feeding hopper, and the stirring vanes in the inner cavity of the slow conveying bin can uniformly convey the material into the inner cavity of the vibrating screen main body, so that when the material is conveyed, the dust on the material flows into the inner cavity of the pipeline together with the gas, and then the gas in the inner cavity of the pipeline is conveyed into the inner cavity of the second shell, and due to the force of the motor fan, the dust conveyed into the inner cavity of the second shell is attached to the dustproof net near the first side of the second shell, and long-term accumulation can cause the dust to block the holes of the dustproof net.

[0014] The further improvement of the utility model technical scheme lies in: the lifting assembly comprises a sliding block, a guide rod I is symmetrically and fixedly connected to one side of the sliding block, two guide rods I are symmetrically and fixedly connected to the other side of the sliding block, and a connecting block is slidably connected to the outer surfaces of the two guide rods I.

[0015] By means of the fixed connection of the telescopic rod of the electric push rod and the upper end of the connecting block, the connecting block can be lifted by the electric push rod, and since the connecting block is fixedly connected to the partition plate, the partition plate can be lifted together with the connecting block when the connecting block is lifted, and then the partition plate can drive the plurality of unblocking assemblies to be lifted, so that the plurality of unblocking assemblies can be prevented from being too low in the inner cavity of the vibrating screen body, and then the displacement of the material in the inner cavity of the vibrating screen body is affected.

[0016] The further improvement of the utility model technical scheme lies in: the unblocking assembly comprises a shell I, an impact block is slidably connected to the inner cavity of the shell I, an electromagnet is fixedly connected to the inner cavity of the shell I, a spring is wound on one side of the outer surface of the electromagnet close to the impact block, an iron block is fixedly connected to one side of the impact block close to the spring, the side of the spring close to the impact block is fixedly connected to the iron block, the impact block is slidably connected to the electromagnet, and the iron block is slidably connected to the electromagnet.

[0017] By electrifying the electromagnet, the magnetic force can be generated, the iron block can be magnetically attracted, the impact block can be driven to slide in the inner cavity of the shell I, the spring can be subjected to the acting force, the spring can be driven to contract, the spring can be driven to expand under the elastic force of the spring itself after the electromagnet is de-energized, the iron block and the impact block can be driven to move downward, the impact block can be driven to exert the acting force on the mesh holes of the mesh plate I or the mesh plate II, the mesh holes of the mesh plate I or the mesh plate II can be prevented from being blocked by the material, and then the screening of the device is affected.

[0018] The further improvement of the utility model technical scheme lies in: the mesh hole diameter of the mesh plate II is greater than the mesh hole diameter of the mesh plate I.

[0019] With the technical scheme, the second mesh diameter of the mesh plate is larger than the first mesh diameter of the mesh plate, so that the different mesh diameters can realize the classification and screening of the material, the larger particles are first intercepted by the second mesh plate, and the smaller particles pass through the mesh to the next layer and are further screened by the first mesh plate, so that the screening efficiency can be improved, the material can be separated into different particle sizes more quickly, and the large mesh screen can reduce the blocking of the material on the screen, because the larger particles are more likely to pass through the screen, so that the blocking and wear of the screen are avoided, which helps to prolong the service life of the screen and reduce the downtime caused by blocking.

[0020] The further improvement of the technical scheme of the utility model lies in that the impact block is made of rubber material.

[0021] With the technical scheme, the impact block is made of rubber material, so that when the impact block collides with the mesh hole of the first mesh plate or the second mesh plate, the damage of the impact block to the material blocked in the mesh hole can be reduced, and the material can be prevented from being damaged, and when an accident occurs, the impact block does not contact the mesh hole of the first mesh plate or the second mesh plate, and when the impact block contacts the first mesh plate or the second mesh plate, the damage of the impact block to the first mesh plate or the second mesh plate can be reduced.

[0022] The further improvement of the technical scheme of the utility model lies in that the dust collecting box is provided with an observation window on one side.

[0023] With the technical scheme, the observation window is arranged on one side of the dust collecting box, so that the dust collecting condition in the inner cavity of the second shell can be observed by the dust collecting box, when the dust in the inner cavity of the dust collecting box is collected to a certain amount, the dust in the inner cavity of the dust collecting box needs to be cleaned to avoid too much dust in the inner cavity of the dust collecting box, which affects the normal use of the second shell.

[0024] Due to the adoption of the above technical scheme, the utility model has the following technical progress compared with the prior art:

[0025] The utility model provides a kind of vibration screen with dustproof structure, by let motor fan run, gas in shell two inner cavity and pipeline inner cavity can be separated by motor fan, then low pressure is formed in shell two inner cavity and pipeline inner cavity, so that gas in slow-feeding bin inner cavity will flow towards pipeline inner cavity, when material placed in feed hopper inner cavity is transported to vibration screen main body inner cavity by slow-feeding bin, it will be stirred by stirring fan blade in slow-feeding bin inner cavity, prevent material from being blocked at feed hopper discharge port position, simultaneously, material can be uniformly transported to vibration screen main body inner cavity by stirring fan blade in slow-feeding bin inner cavity, so that dust on material will flow into pipeline inner cavity with gas during transportation, then gas in pipeline inner cavity is transported to shell two inner cavity, due to the influence of force of motor fan, dust transported to shell two inner cavity will adhere to dust screen on shell two one side, long-term accumulation will cause dust to block dust screen hole;

[0026] Due to the threaded rod two and scraper threaded connection, so as to be able to rotate threaded rod two, drive scraper to lift, then can clean dust on dust screen when scraper moves downward, so as to reduce or even avoid dust to block the net on dust screen, then affect the device to clean dust on material transported to vibration screen main body inner cavity, so as to avoid a large amount of dust to be transported to the device with material, then affect the normal use of device, so as to prolong the service life of dust screen, and can reduce dust and other impurities to block the mesh hole on mesh plate two and mesh plate one, then affect the screening efficiency and quality of device.

[0027] 2, the utility model provides a kind of vibration screen with dustproof structure, by energizing electromagnet, magnetic force can be generated, then magnetically attract iron block, so as to drive impact block to slide in shell one inner cavity, then can exert force on spring, drive spring to contract, when electromagnet is de-energized, spring will be stretched under the action of spring's own elasticity, then can push iron block and impact block to move downward, so as to push impact block to exert force on mesh hole on mesh plate one or mesh plate two, so as to avoid material to block mesh hole on mesh plate one or mesh plate two, then affect the screening of device, so as to improve the service life and screening efficiency of device. BRIEF DESCRIPTION OF DRAWINGS

[0028] The utility model will be further described in connection with the drawings.

[0029] Figure 1 It is the overall structure diagram of the utility model Figure 1 ;

[0030] Figure 2 It is the overall structure diagram of the utility modelFigure 2

[0031] Figure 3 The overall structure of the present utility model is shown Figure 3

[0032] Figure 4 The partial structure of the present utility model is shown Figure 1

[0033] Figure 5 The partial structure of the present utility model is shown Figure 2

[0034] Figure 6 The lifting assembly of the present utility model is shown Figure 1

[0035] Figure 7 The dustproof assembly of the present utility model is shown Figure 1

[0036] Figure 8 The feeding hopper of the present utility model is shown

[0037] Figure 9 The dustproof assembly of the present utility model is shown Figure 2

[0038] Figure 10 The lifting assembly of the present utility model is shown Figure 2

[0039] Figure 11 The clogging clearing assembly of the present utility model is shown

[0040] Figure 12 The net plate one of the present utility model is shown.

[0041] In the figure: 1, the vibrating screen main body; 11, the sliding rod; 12, the threaded rod one; 13, the lifting assembly; 131, the sliding block; 132, the connecting block; 133, the guide rod one; 134, the electric push rod; 14, the clogging clearing assembly; 141, the shell one; 142, the electromagnet; 143, the spring; 144, the iron block; 145, the impact block; 15, the partition plate; 2, the support frame; 3, the net plate one; 4, the net plate two; 5, the feeding hopper; 6, the slow feeding bin; 7, the pipeline; 8, the shell two; 81, the dust collecting box; 82, the air outlet pipe; 83, the guide rod two; 84, the threaded rod two; 85, the scraper; 86, the motor fan; 9, the vibrating pump. DETAILED DESCRIPTION

[0042] The present utility model will be further described in detail in combination with the embodiments:

[0043] Embodiment 1

[0044] As​​​​​​​​Figure 1 Figure 4 As shown in the utility model provides a kind of dustproof structure's vibrating screen, including vibrating screen main body 1 and support frame 2;Vibrating screen main body 1 lower end is fixedly connected with the upper end of support frame 2, vibrating screen main body 1 inner chamber middle part is fixedly connected with screen plate one 3, vibrating screen main body 1 inner chamber upper part is fixedly connected with screen plate two 4, vibrating screen main body 1 upper end one side is fixedly connected with slow sending bin 6, and the inner chamber of slow sending bin 6 is communicated with the inner chamber of vibrating screen main body 1, slow sending bin 6 upper end is fixedly connected with feed hopper 5, slow sending bin 6 one side is fixedly connected with pipeline 7, vibrating screen main body 1 one side is fixedly connected with shell two 8, shell two 8 lower end is fixedly connected with dust collection box 81, shell two 8 side away from pipeline 7 is fixedly connected with air outlet pipe 82, air outlet pipe 82 inner chamber is fixedly connected with motor fan 86, shell two 8 inner chamber side close to air outlet pipe 82 is fixedly connected with guide rod two 83, shell two 8 inner chamber side close to guide rod two 83 is rotatably connected with threaded rod two 84, the outer surface of guide rod two 83 is slidably connected with scraper 85, threaded rod two 84 is threadedly connected with scraper 85, support frame 2 lower part one side is fixedly connected with several vibrating pumps 9.

[0045] In the embodiment, by the cooperation of screen plate one 3 and screen plate two 4, the material conveyed into the inner chamber of vibrating screen main body 1 can be screened, by the cooperation of feed hopper 5 and slow sending bin 6, the material can be conveniently conveyed into the inner chamber of vibrating screen main body 1, by running motor fan 86, the gas in the inner chamber of shell two 8 and the inner chamber of pipeline 7 can be extracted by motor fan 86, then low pressure is formed in the inner chamber of shell two 8 and the inner chamber of pipeline 7, so that the gas in the inner chamber of slow sending bin 6 flows towards the inner chamber of pipeline 7, when the material placed in the inner chamber of feed hopper 5 is conveyed into the inner chamber of vibrating screen main body 1 through slow sending bin 6, the material outlet position of feed hopper 5 can be stirred by the stirring fan blades in the inner chamber of slow sending bin 6, to prevent the material from being blocked at the material outlet position of feed hopper 5, meanwhile, the material can be uniformly conveyed into the inner chamber of vibrating screen main body 1 by the stirring fan blades in the inner chamber of slow sending bin 6, so that when conveying, the dust on the material flows into the inner chamber of pipeline 7 together with the gas, then the material is conveyed into the inner chamber of shell two 8 together with the gas in the inner chamber of pipeline 7, due to the influence of the force of motor fan 86, the dust conveyed into the inner chamber of shell two 8 adheres to the dustproof net close to shell two 8 on one side of air outlet pipe 82, and long-term accumulation can cause the dust to block the dustproof net holes;

[0046] ​Due to the threaded connection of the second threaded rod 84 and the scraper 85, the scraper 85 can be lifted by rotating the second threaded rod 84, and then the dust and the like attached to the dust screen can be cleaned when the scraper 85 moves downward, so that the dust and the like can reduce or even avoid the mesh of the dust screen from being blocked, and then affect the cleaning of the dust on the material conveyed into the inner cavity of the vibrating screen main body 1 by the vibrating pump 9. The vibration can be generated, and then the material conveyed into the inner cavity of the vibrating screen main body 1 is screened.

[0047] Embodiment 2

[0048] As shown in Figure 7 , Figure 8 and Figure 9 , on the basis of embodiment 1, the utility model provides a technical scheme: preferably, the dust collecting box 81 side is equipped with an observation window.

[0049] In this embodiment, when the material needs to be screened, first, the material to be screened is conveyed into the inner cavity of the feeding hopper 5, and then the material conveyed into the inner cavity of the feeding hopper 5 falls into the inner cavity of the buffer bin 6, and then the material falls on the stirring fan blade in the inner cavity of the buffer bin 6, so that the stirring fan blade can be driven to rotate, and a large amount of material can be prevented from accumulating at the discharge port position of the feeding hopper 5, thereby causing blockage and affecting the conveying of the material. At the same time, by running the motor fan 86, the gas in the inner cavity of the second shell 8 and the inner cavity of the pipeline 7 can be extracted by the motor fan 86, and then a low pressure is formed in the inner cavity of the second shell 8 and the inner cavity of the pipeline 7, so that the gas in the inner cavity of the buffer bin 6 flows towards the inner cavity of the pipeline 7, and then the dust and the like on the material in the inner cavity of the buffer bin 6 can flow into the inner cavity of the pipeline 7 together with the gas, and then be conveyed into the inner cavity of the second shell 8 together with the gas in the inner cavity of the pipeline 7. Due to the influence of the force of the motor fan 86, the dust and the like conveyed into the inner cavity of the second shell 8 can be attached to the dust screen on the side of the air outlet pipe 82 close to the second shell 8. Long-term accumulation can cause the dust to block the mesh of the dust screen. Due to the threaded connection of the second threaded rod 84 and the scraper 85, the scraper 85 can be lifted by rotating the second threaded rod 84, and then the dust and the like attached to the dust screen can be cleaned when the scraper 85 moves downward, so that the dust and the like can reduce or even avoid the mesh of the dust screen from being blocked, and then affect the cleaning of the dust on the material conveyed into the inner cavity of the vibrating screen main body 1 by the vibrating pump 9. The vibration can be generated, and then the material conveyed into the inner cavity of the vibrating screen main body 1 is screened.

[0050] Embodiment 3

[0051] As shown in Figure 12 , on the basis of embodiment 2, the utility model provides a technical scheme: preferably, the mesh diameter of the second mesh plate 4 is greater than the mesh diameter of the first mesh plate 3.

[0052] In the embodiment, the material after the dust removal treatment falls on the second screen plate 4, and then under the vibration of the vibration pump 9, the material on the second screen plate 4 is moved, and then some small particles fall on the first screen plate 3 from the mesh of the second screen plate 4, and the material falling on the first screen plate 3 is moved to the discharge port together with the material on the second screen plate 4, and then the screened material is discharged through the discharge port.

[0053] Embodiment 4

[0054] As Figure 5 、 Figure 6 、 Figure 10 、 Figure 11 As shown in the embodiment 3, the utility model provides a technical scheme: preferably, the vibration screen main body 1 inner chamber one side is fixedly connected with two slide rods 11, and the vibration screen main body 1 inner chamber is rotatably connected with two threaded rods one 12 on the side away from the slide rod 11, and the vibration screen main body 1 inner chamber is symmetrically slidably connected with several lifting assemblies 13, the outer surface of the slide rod 11 of the same side is slidably connected with the adjacent lifting assembly 13, the outer surface of the threaded rod one 12 of the same side is threadedly connected with the adjacent lifting assembly 13, and the opposite surfaces of the two lifting assemblies 13 of the same horizontal height are fixedly connected with a blockage cleaning assembly 14, the blockage cleaning assembly 14 is slidably connected with several partitions 15, the lifting assembly 13 includes a sliding block 131, the sliding block 131 is symmetrically fixedly connected with a guide rod one 133 on one side, the outer surfaces of the two guide rods one 133 are slidably connected with a connecting block 132, the sliding block 131 is fixedly connected with an electric push rod 134 on one side of the upper portion, and the telescopic rod of the electric push rod 134 extends through the upper portion of the sliding block 131 to the lower portion vibration pump 9, the telescopic rod of the electric push rod 134 is fixedly connected with the connecting block 132, and the opposite surfaces of the two connecting blocks 132 of the same horizontal height are fixedly connected with the partition 15 together.

[0055] The blockage cleaning assembly 14 includes an outer shell one 141, the outer shell one 141 inner chamber is slidably connected with an impact block 145, the outer shell one 141 inner chamber is fixedly connected with an electromagnet 142, the outer surface of the electromagnet 142 is wound with a spring 143 on one side close to the impact block 145, the impact block 145 is fixedly connected with an iron block 144 on one side close to the spring 143, the spring 143 is fixedly connected with the iron block 144 on one side close to the impact block 145, the impact block 145 is slidably connected with the electromagnet 142, the iron block 144 is slidably connected with the electromagnet 142, and the impact block 145 is made of rubber material.

[0056] In the embodiment, when the screening of the material is completed, the controller can be used to control the operation of the plurality of unblocking assemblies 14, the controller can be used to control the energization and de-energization of the electromagnet 142 gap, and the energization of the electromagnet 142 can generate a magnetic force to magnetically attract the iron block 144, thereby driving the impact block 145 to slide in the inner cavity of the shell one 141, and then the spring 143 can be subjected to a force to drive the spring 143 to contract. When the electromagnet 142 is de-energized, the spring 143 will be driven to expand under the elastic force of the spring 143, and then the iron block 144 and the impact block 145 will be pushed to move downward, thereby pushing the impact block 145 to exert a force on the mesh holes of the mesh plate one 3 or the mesh plate two 4, so as to avoid the material from blocking the mesh holes of the mesh plate one 3 or the mesh plate two 4, and then affect the screening of the material by the device. At the same time, the controller can be used to control the operation of the motor, and then the motor can be used to drive the pulley to rotate. Since the pulley is fixedly connected with the threaded rod one 12, and then the cooperation between the pulley and the belt can drive another pulley to rotate when one pulley is driven to rotate by the motor, and then the two pulleys can drive the two threaded rods one 12 to rotate. When the threaded rod one 12 rotates, the sliding block 131 will slide in the inner cavity of the vibration sieve main body 1, and then the connection block 132 will move together when the sliding block 131 slides, and the partition plate 15 will move together when the connection block 132 moves, thereby driving the plurality of unblocking assemblies 14 to move together in the inner cavity of the vibration sieve main body 1 through the partition plate 15, and then the plurality of unblocking assemblies 14 can clean the plurality of mesh holes on the mesh plate one 3 and the plurality of mesh holes on the mesh plate two 4, respectively, thereby improving the screening efficiency and quality of the device in the later period.

[0057] The working principle of the vibration sieve with the dustproof structure will be described in detail below.

[0058] As Figure 1 - Figure 12When the material needs to be screened, first, the material to be screened is conveyed into the inner cavity of the feed hopper 5, and then the material in the inner cavity of the feed hopper 5 falls into the inner cavity of the slow conveying bin 6, and then the material falls on the stirring fan blades in the inner cavity of the slow conveying bin 6, so as to drive the stirring fan blades to rotate, prevent a large amount of material from accumulating at the discharge port position of the feed hopper 5, and cause blockage, thereby affecting the conveying of the material. At the same time, by allowing the motor fan 86 to operate, the motor fan 86 can be used to draw gas in the inner cavity of the shell two 8 and the inner cavity of the pipeline 7, and then a low pressure is formed in the inner cavity of the shell two 8 and the inner cavity of the pipeline 7, so that the gas in the inner cavity of the slow conveying bin 6 flows towards the inner cavity of the pipeline 7, and then the dust and the like on the material in the inner cavity of the slow conveying bin 6 can flow into the inner cavity of the pipeline 7 together with the gas, and then be conveyed into the inner cavity of the shell two 8 together with the gas in the inner cavity of the pipeline 7. Due to the influence of the force of the motor fan 86, the dust and the like conveyed into the inner cavity of the shell two 8 will adhere to the dust screen on the side of the air outlet pipe 82 close to the shell two 8. Long-term accumulation will cause the dust to block the dust screen holes. Since the threaded rod two 84 is threadedly connected with the scraper 85, the threaded rod two 84 can be rotated to drive the scraper 85 to ascend and descend. When the scraper 85 moves downward, the dust and the like adhering to the dust screen can be cleaned, thereby reducing or even avoiding the dust and the like from blocking the dust screen.

[0059] Then the material after dust removal falls on the second screen plate 4, and under the vibration of the vibration pump 9, the material on the second screen plate 4 moves, and some small particles of material fall from the mesh holes of the second screen plate 4 onto the first screen plate 3. The material falling on the first screen plate 3 will move towards the discharge port position as the material on the second screen plate 4, and then the screened material is discharged through the discharge port.

[0060] When the screening of the material is completed, the controller can control the operation of the plurality of unblocking assemblies 14, the controller can control the energization and de-energization of the electromagnet 142 gap, the energization of the electromagnet 142 can generate a magnetic force, then the iron block 144 is magnetically attracted, so that the impact block 145 can slide in the inner cavity of the shell one 141, then the spring 143 can be applied force, drive the spring 143 to contract, when the electromagnet 142 is de-energized, the spring 143 will be stretched under the action of its own elastic force, then the iron block 144 and the impact block 145 can be pushed downward, so that the impact block 145 can push the mesh holes on the mesh plate one 3 or the mesh plate two 4 to apply force, so as to avoid the material from blocking the mesh holes on the mesh plate one 3 or the mesh plate two 4, then affect the screening of the material behind the device, at the same time, the controller can control the motor to run, then the motor drives the pulley to rotate, since the pulley is fixedly connected with the threaded rod one 12, then through the cooperation of the pulley and the belt, when the motor drives one pulley to rotate, the other pulley can be driven to rotate, then the two pulleys can drive the two threaded rods one 12 to rotate, when the threaded rod one 12 rotates, the sliding block 131 can slide in the inner cavity of the vibrating screen main body 1, then when the sliding block 131 slides, the connecting block 132 can move together, when the connecting block 132 moves, the partition plate 15 can move together, so that the partition plate 15 can drive the plurality of unblocking assemblies 14 to move together in the inner cavity of the vibrating screen main body 1, then the plurality of unblocking assemblies 14 can clean the plurality of mesh holes on the mesh plate one 3 and the plurality of mesh holes on the mesh plate two 4 respectively, so as to improve the screening efficiency and quality of the device in the later period.

[0061] The above has made a detailed description of the present application, but some modifications or improvements can be made on the basis of the present application, which is obvious to those skilled in the art. Therefore, the modifications or improvements without departing from the spirit of the present application are within the scope of the present application.

Claims

1. A vibrating screen having a dust-proof structure, comprising a vibrating screen main body (1) and a support frame (2); characterized in that The lower end of the vibrating screen body (1) is fixedly connected with the upper end of the support frame (2), the middle part of the inner cavity of the vibrating screen body (1) is fixedly connected with the screen plate one (3), the upper part of the inner cavity of the vibrating screen body (1) is fixedly connected with the screen plate two (4), one side of the upper end of the vibrating screen body (1) is fixedly connected with the buffer bin (6), and the inner cavity of the buffer bin (6) is communicated with the inner cavity of the vibrating screen body (1), the upper end of the buffer bin (6) is fixedly connected with the feeding hopper (5), one side of the buffer bin (6) is fixedly connected with the pipeline (7), one side of the vibrating screen body (1) is fixedly connected with the shell two (8), the lower end of the shell two (8) is fixedly connected with the dust collecting box (81), the side, away from the pipeline (7), of the shell two (8) is fixedly connected with the air outlet pipe (82), the inner cavity of the air outlet pipe (82) is fixedly connected with the motor fan (86), the inner cavity of the shell two (8), close to the air outlet pipe (82), is fixedly connected with the guide rod two (83), the inner cavity of the shell two (8), close to the guide rod two (83), is rotatably connected with the threaded rod two (84), the outer surface of the guide rod two (83) is slidably connected with the scraper (85), the threaded rod two (84) is threadedly connected with the scraper (85), and the lower part of the support frame (2) is fixedly connected with a plurality of vibrating pumps (9).

2. The vibrating screen with dustproof structure according to claim 1, characterized in that: The inner cavity of the vibrating screen body (1) is fixedly connected with two slide rods (11) on one side, the inner cavity of the vibrating screen body (1) is rotatably connected with two threaded rods one (12) on the side, away from the slide rods (11), a plurality of lifting assemblies (13) are symmetrically and slidably connected in the inner cavity of the vibrating screen body (1), the outer surfaces of the slide rods (11) on the same side are slidably connected with adjacent lifting assemblies (13), the outer surfaces of the threaded rods one (12) on the same side are threadedly connected with adjacent lifting assemblies (13), and the opposite surfaces of two lifting assemblies (13) at the same horizontal height are fixedly connected with a blockage cleaning assembly (14), and the blockage cleaning assembly (14) is slidably connected with a plurality of partition plates (15).

3. The vibrating screen with dustproof structure according to claim 2, characterized in that: The lifting assembly (13) comprises a sliding block (131), guide rods one (133) are fixedly connected on one side of the sliding block (131) in a symmetrical manner, the outer surfaces of the two guide rods one (133) are commonly slidably connected with a connecting block (132), an electric push rod (134) is fixedly connected on one side of the upper part of the sliding block (131), the telescopic rod of the electric push rod (134) extends through the upper part of the sliding block (131) to the lower vibrating pump (9), the telescopic rod of the electric push rod (134) is fixedly connected with the connecting block (132), and the opposite surfaces of the two connecting blocks (132) at the same horizontal height are fixedly connected with the partition plate (15).

4. The vibrating screen with dustproof structure according to claim 2, characterized in that: The said clearing assembly (14) comprises a shell one (141), the inner chamber of the shell one (141) is slidably connected with an impact block (145), the inner chamber of the shell one (141) is fixedly connected with an electromagnet (142), the outer surface of the electromagnet (142) is wound with a spring (143) near one side of the impact block (145), one side of the impact block (145) near the spring (143) is fixedly connected with an iron block (144), one side of the spring (143) near the impact block (145) is fixedly connected with the iron block (144), the impact block (145) is slidably connected with the electromagnet (142), and the iron block (144) is slidably connected with the electromagnet (142).

5. The vibrating screen with dustproof structure according to claim 1, characterized in that: The mesh diameter of the second mesh plate (4) is larger than that of the first mesh plate (3).

6. The vibrating screen with dustproof structure according to claim 4, characterized in that: The impact block (145) is made of rubber material.

7. The vibrating screen with dustproof structure according to claim 1, characterized in that: An observation window is formed in one side of the dust collecting box (81).

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