Multispectral photoelectric sorting experimental device

Abstract

The invention relates to the technical field of multispectral photoelectric sorting, in particular to a multispectral photoelectric sorting experimental device. Comprising a separation chamber, a material receiving conveying belt, a circulating material transferring conveying belt, a lifting feeding belt, a single-stage vibrating screen and a separation system body which are connected end to end. The top of the separation chamber is communicated with a dust remover; the single-stage vibrating screen comprises a screen hopper; a feeding end is arranged on the rear portion of the top of the screening hopper, and a discharging end communicated with the sorting system body is arranged on the front side of the screening hopper. A screen is obliquely arranged on the inner bottom wall of the screen hopper towards the discharging end. The bottom of the screen hopper is connected with a material receiving bin in a penetrating mode. The lower end opening of the material receiving bin is fixedly connected with a material receiving pipe; large-size materials intercepted by the limiting strips are shoveled up and removed through the pocket claws, so that a material channel at the discharging end of the single-stage vibrating screen is smooth, the large-size materials are prevented from entering a sorting system body to cause damage, and smooth conveying of the materials in the sorting experiment device is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of multi-spectrum photoelectric sorting, in particular to a multi-spectrum photoelectric sorting experimental device. Background Art

[0002] The multi-spectral photoelectric sorting experimental device can realize the identification and sorting of coal gangue, taking into account the recycling and refinement of mineral resources (manganese, tungsten, copper, iron, gold, lead and zinc, phosphate rock, fluorite, kaolin) and solid waste renewable resources (such as disassembled photovoltaic panel glass and metal, new energy vehicle power battery electrode metal). It can realize image acquisition and analysis covering visible light, dual-band infrared, ultraviolet fluorescence, and dual-energy X-ray, and has the function of rejection and sorting. It can analyze and characterize the material properties, component composition and morphological distribution of materials online, including density grade, ash range, particle size distribution, transportation and bulk characteristics and laws. It can reveal the identification and sorting mechanism of different materials of various materials such as coal and gangue, ore, solid waste, etc., and build the intrinsic connection between the key parameters of sorting and the properties of the material itself; it can distinguish materials from the surface to the inside, and complete the recycling and refinement of mineral resources and solid waste renewable resources.

[0003] The multi-spectral photoelectric sorting experimental device includes a separation chamber, a material receiving conveyor belt, a circulating material transfer conveyor belt, a lifting and feeding belt, a single-stage vibrating screen, a sorting system body, and a dust removal device. The materials separated from the separation chamber will be transported to the circulating material transfer conveyor belt through their respective material receiving conveyor belts, and then transported to the single-stage vibrating screen through the lifting and feeding belt. After screening by the single-stage vibrating screen, they enter the sorting system body. The sorting system body cooperates with the separation chamber to realize material sorting, and the dust generated by the sorting is absorbed by the dust removal device; the single-stage vibrating screen in the sorting experimental device can screen and remove the debris in the material. For materials that exceed the screen specifications in the single-stage vibrating screen, they will directly fall into the sorting system body. In order to avoid some large-sized materials entering the sorting and causing damage to the belt, a limit component will be set at the discharge end of the single-stage vibrating screen to limit the material. Although the limit component can block large-sized materials, as the amount of large-sized materials blocked increases, it will also affect the discharge of materials in the single-stage vibrating screen, causing poor material transportation. Summary of the invention

[0004] In order to make up for the shortcomings of the prior art, the present invention proposes a multi-spectral photoelectric sorting experimental device. The present invention scoops up and removes large-sized materials intercepted by the limit bar through claws, thereby ensuring that the material channel at the discharge end of the single-stage vibrating screen is unobstructed, thereby preventing large-sized materials from entering the sorting system body and causing damage, and ensuring smooth material transportation in the sorting experimental device on the other hand.

[0005] The technical solution adopted by the present invention to solve its technical problems is: a multi-spectral photoelectric sorting experimental device described in the present invention comprises a separation chamber connected end to end, a material receiving conveyor belt, a circulating material transfer conveyor belt, a lifting and feeding belt, a single-stage vibrating screen and a sorting system body; the top of the separation chamber is connected to a dust collector; the single-stage vibrating screen comprises a screen bucket; the top of the screen bucket is provided with a feed end at the rear, and the front side is provided with a discharge end connected to the sorting system body; the inner bottom wall of the screen bucket is inclined toward the discharge end and is provided with a screen; the bottom of the screen bucket is connected to a collecting bin through the bottom; the collecting bin The lower port of the silo is fixedly connected to the material receiving pipe; the middle position of the top of the screen bucket is fixedly connected to the vibrator; the lower position of the discharging end of the screen bucket is evenly erected along the lateral direction with limit bars; adjacent limit bars form a discharging gap in the lateral direction; an arc-shaped claw is provided in the discharging gap; the upper position of the discharging end of the screen bucket is connected to the rotating shaft for lateral rotation; the rotating shaft is driven by a driving motor; the tail of the claw is connected to the rotating shaft; the upper position of the discharging end of the screen bucket is fixedly connected to the inclined bucket; the inclined bucket is provided with an avoidance groove corresponding to the claw; the claw can pass through the discharging gap from front to back.

[0006] Preferably, in the moving direction of the claws, the claws close to the end of the rotating shaft are multiple body lengths ahead of the claws close to the middle of the rotating shaft; after the multiple claws scoop up the material in the discharge gap, the material converges toward the middle of the rotating shaft.

[0007] Preferably, the outer wall of the rotating shaft is provided with a strip groove along the axial direction; the strip groove is slidably connected with a strip bar; the outer wall of the rotating shaft is slidably sleeved with a rotating sleeve along the axial direction; the axial length of the rotating sleeve is less than the axial length of the rotating shaft; the inner wall of the rotating sleeve is fixedly connected to the strip bar; the tail of the claw is fixedly connected to the outer wall of the rotating sleeve; one end of the rotating sleeve abuts against the inner wall of the screen bucket through a first spring; the first spring is sleeved on the outer wall of the rotating shaft; the other end of the rotating sleeve is fixedly connected to a movable block; fixed blocks are provided at positions corresponding to the inner wall of the screen bucket and the movable block; the contact position between the fixed block and the movable block is arc-shaped; after the movable block passes through the fixed block, the rotating sleeve can move along the axial direction of the rotating shaft.

[0008] Preferably, the tail of the scooping claw is fixedly connected to the outer wall of the rotating sleeve at a position circumferentially away from the strip; after the scooping claw scoops up the material, the strip groove opens downward.

[0009] Preferably, the fixed block is located on the rear side of the rotating shaft; and the movable block is located close to the tail of the claw in the circumferential direction of the rotating sleeve.

[0010] Preferably, the limiting bar is arc-shaped; the lower end of the limiting bar is arranged rearward compared to the upper end; the material from the back to the front can be padded by the lower end of the limiting bar.

[0011] Preferably, the outer wall of the rotating sleeve is sleeved with a support ring; the number of the support rings is consistent with the number of the limit strips; the outer wall of the support ring is fixedly connected to the upper end of the limit strip.

[0012] Preferably, the outer wall of the rotating sleeve is provided with an annular groove; the number of the annular grooves is consistent with the number of support rings; the support ring is rotatably connected in the annular groove; the front position of the inner bottom wall of the screen bucket is fixedly connected to a wedge-shaped bar; the lower end of the limit bar is provided with a wedge-shaped groove extending laterally; the wedge bar passes through multiple wedge-shaped grooves at the lower end of the limit bar; the wedge bar is slidably connected to multiple wedge-shaped grooves.

[0013] Preferably, a blocking bar is movably inserted into the avoidance groove; a spring piece is fixedly connected to the lower surface of the inclined bucket at a position away from the screen bucket; and one end of the blocking bar away from the screen bucket is fixedly connected to the spring piece.

[0014] Preferably, the upper surface of the blocking bar located in the avoidance groove is flush with the inner bottom wall of the inclined bucket.

[0015] The beneficial effects of the present invention are as follows: 1. The present invention scoops up and removes the large-sized materials intercepted by the limit bar by the claws, thereby ensuring that the material channel at the discharge end of the single-stage vibrating screen is unobstructed, thereby preventing large-sized materials from entering the sorting system body and causing damage, and ensuring smooth material transportation in the sorting experimental device.

[0016] 2. In the present invention, since the claws are movable in the direction of movement, the claws near the end of the rotating shaft are several body positions ahead of the claws near the middle of the rotating shaft. Therefore, the claws near the end of the rotating shaft enter the discharge gap first and scoop up the large-sized materials. The large-sized materials intercepted by the rear sides of multiple limit bars are scooped up from both sides toward the middle in sequence. After the large-sized materials are scooped up by multiple claws, the materials will gather along the inner openings of the claws toward the middle of the rotating shaft, thereby preventing the materials from slipping from the position near the end of the rotating shaft, thereby improving the stability of the large-sized materials being removed.

[0017] 3. The present invention uses the first spring to cooperate with the movable block to cross the fixed block, so that the claws can scoop up the material and then shake it laterally, so that the small-sized materials at the inner mouth of the claws can fall back to the bottom of the screen bucket, ensuring that the claws can accurately take away the materials larger than the discharge gap specifications. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention is further described below in conjunction with the accompanying drawings and implementation modes.

[0019] Figure 1 is a stereogram of the present invention; Figure 2 is a stereogram of a single-stage vibrating screen in the present invention; Figure 3 It is a three-dimensional diagram of the components in the discharge end of the screen bucket of the present invention; Figure 4 yes Figure 3 The enlarged view of point A in the middle; Figure 5 It is a three-dimensional diagram of the rotating sleeve and the rotating shaft in the present invention; Figure 6 It is a three-dimensional diagram of the oblique bucket in the present invention; Figure 7 yes Figure 6 A three-dimensional image from another angle; Figure 8 It is a schematic diagram of the sorting parts in the main body of the sorting system in the present invention.

[0020] In the figure: separation chamber 1, material receiving conveyor belt 11, circulating material transfer conveyor belt 12, lifting and feeding belt 13, dust collector 14, single-stage vibrating screen 2, sorting system body 3, four-channel visible light camera 31, LED light source 32, infrared camera 33, ultraviolet light source 34, X-ray source 35, dual-energy X-ray detector 36, halogen lamp 37, 150 groups of solenoid valves corresponding to 150 nozzles 38, screen bucket 4, feed end 41, discharge end 42, screen 43, material collection bin 44, material collection pipe 45, vibrator 46, wedge bar 47, limit bar 5, discharge gap 51, wedge groove 52, pocket claw 6, rotating shaft 7, drive motor 71, strip groove 72, strip bar 73, inclined bucket 8, avoidance groove 81, blocking bar 82, spring 83, rotating sleeve 9, first spring 91, movable block 92, fixed block 93, annular groove 94, support ring 95. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0022] like Figures 1 to 8 As shown, the present invention includes the following embodiments: Embodiment 1: A multi-spectral photoelectric sorting experimental device, comprising a separation chamber 1, a material receiving conveyor belt 11, a circulating material transfer conveyor belt 12, a lifting and feeding belt 13, a single-stage vibrating screen 2 and a sorting system body 3 connected end to end; the top of the separation chamber 1 is connected to a dust collector 14; the single-stage vibrating screen 2 comprises a screen bucket 4 supported by a bracket; the top of the screen bucket 4 is provided with a feed end 41 at the rear, and a discharge end 42 connected to the sorting system body 3 is provided at the front; the inner bottom wall of the screen bucket 4 is inclined toward the discharge end 42 and is provided with a screen 43; the bottom of the screen bucket 4 is connected to a receiving bin 44; the lower end of the receiving bin 44 is fixedly connected to the receiving bin 44 Tube 45; the vibrator 46 is fixedly connected to the middle position of the top of the screen bucket 4; the limit bars 5 are evenly erected along the lateral direction at the lower position of the discharge end 42 of the screen bucket 4; the adjacent limit bars 5 form a discharge gap 51 in the lateral direction; an arc-shaped claw 6 is provided in the discharge gap 51; the upper position of the discharge end 42 of the screen bucket 4 is connected to the rotating shaft 7 for lateral rotation; the rotating shaft 7 is driven by a driving motor 71; the tail of the claw 6 is connected to the rotating shaft 7; the upper position of the discharge end 42 of the screen bucket 4 is fixedly connected to the inclined bucket 8; the inclined bucket 8 is provided with an avoidance groove 81 corresponding to the claw 6; the claw 6 can pass through the discharge gap 51 from front to back.

[0023] During operation, the materials separated from the separation chamber 1 are discharged from the bottom and fall into their respective receiving conveyor belts 11. Under the transportation of the receiving conveyor belt 11, the materials will be transported from the head to the tail and fall on the upper surface of the circulating material transfer conveyor belt 12. The lower tail of the receiving conveyor belt 11 is surrounded by a rubber belt. Of course, the direction of the surrounding is the other three directions except the tail of the circulating material transfer conveyor belt 12, so as to prevent the materials from rolling down. The materials are transported from the head to the tail of the circulating material transfer conveyor belt 12 and fall on the lower position of the lifting feeding belt 13. The edge height of the circulating material transfer conveyor belt 12 can be greater than the middle position, so as to further avoid the rolling of the materials and facilitate the stable transportation of the materials; the lifting feeding belt 13 will lift the materials from the bottom position to a certain height and pour them along the feeding end 41 of the single-stage vibrating screen 2, and the upper part of the lifting feeding belt 13 A monitoring component is set at the end to monitor the material screening situation in the single-stage vibrating screen 2. After the material in the single-stage vibrating screen 2 is screened and removed, the lifting and feeding belt 13 can automatically carry out feeding and replenishment. At the same time, when the material in the single-stage vibrating screen 2 is not screened in time, the feeding speed of the lifting and feeding belt 13 is slowed down to prevent the material in the single-stage vibrating screen 2 from being processed in time. In addition, an interception component can be set on the surface of the lifting and feeding belt 13 to intercept excess material during the feeding process, so that the lifting and feeding belt 13 can load material within its own accommodation range to avoid excessive feeding causing leakage and falling and other dangerous situations; the receiving hopper at the upper end of the lifting and feeding belt 13, the receiving hopper at the tail of the material receiving conveyor belt 11 and the receiving hopper at the tail of the circulating material conveyor belt 12 are all embedded with rubber belts to buffer the material to prevent breakage and reduce noise;The material entering from the feed end 41 of the screen bucket 4 of the single-stage vibrating screen 2 will roll along the inclined screen 43 at the bottom of the screen bucket 4, and some material debris will pass through the screen 43 and fall into the receiving bin 44, and finally be discharged along the receiving pipe 45. The screened material will move forward to the discharge end 42, and a limit bar 5 is arranged at the lower position on the inner side of the discharge end 42. A plurality of vertical limit bars 5 have a gap in the lateral direction, i.e., a discharge gap 51. The material smaller than the discharge gap 51 will directly pass through the discharge gap 51 and flow into the sorting system body 3 along the discharge end 42, and the material larger than the discharge gap 51 will be intercepted by the vertical limit bars 5, so as to prevent large-sized materials from entering the sorting system body 3 and causing damage. , the driving motor 71 will work regularly, and the working driving motor 71 will drive the rotating shaft 7 to rotate inside the rotating hole. During the rotation of the rotating shaft 7, the pocket claws 6 connected to the outer wall will be driven to move around the rotating shaft 7. The pocket claws 6 will pass through the avoidance groove 81 on the inclined bucket 8 from top to bottom, and pass through the discharge gap 51 from front to back. The spacing between adjacent pocket claws 6 in the lateral direction is the same as the spacing between adjacent limit bars 5 in the lateral direction. The pocket claws 6 are arc-shaped and can dig up the materials intercepted by the limit bars 5. After the large-sized materials are dug up by the limit bars 5, some small-sized materials will fall off from the gaps between adjacent pocket claws 6. The large-sized materials will fall on the inclined bucket 8 after the pocket claws 6 are turned over, and finally flow out along the inclined bucket 8. The pocket claws 6 pass through from top to bottom again. It moves around the rotating shaft 7 through the avoidance groove 81, and repeatedly realizes the timely removal of large-sized materials blocked by the limit strip 5 to ensure the smooth discharge gap 51; the materials falling into the sorting system body 3 are sorted, and the sorting system body 3 is equipped with a visible light, infrared, and ultraviolet image acquisition controller; it is also equipped with an X-ray source 35 transformer, a four-channel visible light camera 31, a strip LED light source 32, an infrared camera 33, a halogen lamp 37 light source, and an embedded strip ultraviolet light source 34, an X-ray source 35, and a dual-energy X-ray detector 36 located below the X-ray source 35; the dual-energy X-ray transmission acquisition image covers the entire belt width, 1.2m, and collects dual-energy X-ray transmission images Industrial air conditioning Synchronously turn on heat dissipation; four groups of visible light cameras collect images in four channels, covering 1.2m. To collect visible light images, the ultraviolet light source 34 and the halogen lamp 37 need to be turned off; to collect ultraviolet images, turn on the ultraviolet light source 34, turn off the visible light source and the halogen lamp 37, and use four groups of visible light cameras to collect images in four channels, covering 1.2m; to collect infrared images, it is necessary to turn off the visible light source (i.e., LED light source 32) and ultraviolet light source 34, turn on the halogen lamp 37 light source, and the air-cooled radiator of the halogen lamp 37 works at the same time; the circulating material transfer conveyor belt 12 and the multiple material receiving conveyor belts 11 are turned on synchronously, the lifting and feeding belt 13 is turned on separately, and the horizontal conveyor belt in the main body 3 of the sorting system is turned on separately;The material flowing out from the discharge end 42 of the single-stage vibrating screen 2 is laid out flat and evenly dispersed into the main body 3 of the sorting system for sorting. After the material moves from the main body 3 of the sorting system to the separation chamber 1, it is separated by the separation chamber 1. A monitoring end is provided in the separation chamber 1, and an iron link material is provided in the separation chamber 1 to prevent the material from rebounding after separation and causing separation disorder; 150 groups of solenoid valves in the separation chamber 1 correspond to 150 nozzles 38; the dust generated in the separation chamber 1 is removed by the dust collector 14, and the material falls into the corresponding material receiving conveyor belt 11 after separation, so as to carry out a cycle experiment; the sorting experimental device is integrated, integrating visible light, dual-band infrared, ultraviolet fluorescence, dual-energy X-ray multi-spectral image acquisition functions; it is also circulatable, equipped with a receiving belt, a transfer belt, and a lifting belt, and the material forms a cycle, which is convenient for image acquisition and statistical analysis; finally, multi-source information fusion can be realized to realize identification and separation, and multi-source image acquisition and information fusion can be performed, so as to accurately identify and separate materials; The single-stage vibrating screen 2 can only screen out some debris smaller than the screen 43, but cannot further screen out materials larger than the screen 43. The setting of the claw 6 can remove some materials of other specifications, so that the claw 6 actually has a secondary screening function, that is, it can remove some large-sized materials, so that the materials flowing out of the single-stage vibrating screen 2 can be sorted under the condition of small differences in specifications. The large differences in the specifications of the materials in the sorting system body 3 will cause the light source to be blocked, affecting the effect of the sorting experiment; The present invention scoops up and removes the large-sized materials intercepted by the limit bar 5 through the claws 6, thereby ensuring that the material channel 42 of the discharge end 42 of the single-stage vibrating screen 2 is unobstructed, thereby preventing the large-sized materials from entering the sorting system body 3 and causing damage, and ensuring smooth material transportation in the sorting experimental device.

[0024] Embodiment 2: In the moving direction of the catching claws 6, the catching claws 6 close to the end of the rotating shaft 7 are multiple body lengths ahead of the catching claws 6 close to the middle of the rotating shaft 7; after the multiple catching claws 6 scoop up the material in the discharge gap 51, the material converges toward the middle of the rotating shaft 7.

[0025] During operation, the rotation of the rotating shaft 7 will drive multiple claws 6 to rotate around the rotating shaft 7, and materials exceeding the spacing of the discharge gap 51 will be intercepted by multiple limit bars 5. As the claws 6 pass through the discharge gap 51 from front to back, the claws 6 can scoop up the large-sized materials intercepted on the rear side of the limit bars 5. Since the claws 6 are ahead of the claws 6 near the end of the rotating shaft 7 by multiple body lengths in the moving direction compared with the claws 6 near the middle of the rotating shaft 7, the claws 6 near the end of the rotating shaft 7 enter the discharge gap 51 first and scoop up the large-sized materials. The large-sized materials intercepted by the rear sides of the multiple limit bars 5 are shoveled up from both sides toward the middle in sequence. After the large-sized materials are scooped up by the multiple claws 6, the materials will gather along the inner openings of the claws 6 toward the middle position of the rotating shaft 7, thereby preventing the materials from sliding from the position close to the end of the rotating shaft 7, thereby improving the stability of the large-sized materials being removed; as the claws 6 flip, the large-sized materials will slide from the inner openings of the claws 6 into the inclined bucket 8, and the large-sized materials will slide along the inclined bucket 8, and the claws 6 located above the rotating shaft 7 will flip from back to front and pass through the avoidance groove 81.

[0026] Embodiment 3: The outer wall of the rotating shaft 7 is provided with a strip groove 72 along the axial direction; the strip groove 72 is slidably connected with a strip bar 73; the outer wall of the rotating shaft 7 is slidably sleeved with a rotating sleeve 9 along the axial direction; the axial length of the rotating sleeve 9 is less than the axial length of the rotating shaft 7; the inner wall of the rotating sleeve 9 is fixedly connected to the strip bar 73; the tail of the claw 6 is fixedly connected to the outer wall of the rotating sleeve 9; one end of the rotating sleeve 9 abuts against the inner wall of the screen bucket 4 through a first spring 91; the first spring 91 is sleeved on the outer wall of the rotating shaft 7; the other end of the rotating sleeve 9 is fixedly connected to a movable block 92; a fixed block 93 is provided at a position corresponding to the inner wall of the screen bucket 4 and the movable block 92; the contact position between the fixed block 93 and the movable block 92 is arc-shaped; after the movable block 92 passes through the fixed block 93, the rotating sleeve 9 can move axially along the rotating shaft 7.

[0027] In this embodiment, the tail end of the scooping claw 6 is fixedly connected to the outer wall of the rotating sleeve 9 at a position away from the strip 73 in the circumferential direction; after the scooping claw 6 scoops up the material, the strip groove 72 opens downward.

[0028] In this embodiment, the fixed block 93 is located at the rear side of the rotating shaft 7 ; the movable block 92 is located near the tail of the claw 6 in the circumferential direction of the rotating sleeve 9 .

[0029] During operation, the housing of the driving motor 71 is fixedly connected to the outer wall of the sieve bucket 4, and the output shaft of the driving motor 71 is connected to the end of the rotating shaft 7. The rotating shaft 7 rotates under the drive of the driving motor 71, and the rotating shaft 7 drives the rotating sleeve 9 on the outer wall to rotate. The rotating sleeve 9 rotates with the rotation of the rotating shaft 7. During the rotation of the rotating sleeve 9, the pocket claws 6 on the outer wall will be driven to move around the rotating shaft 7. The pocket claws 6 will pass through the discharge gap 51 from front to back. As the rotating shaft 7 continues to rotate, the pocket claws 6 will scoop up the large-sized materials on the rear side of the plurality of limit bars 5, and the inner mouth of the pocket claws 6 will face upwards. The rotating sleeve 9 will drive the movable block 92 to contact with the fixed block 93. The contact position with the fixed block 93 is arc-shaped, so the two can form an extrusion with each other. Under the extrusion of the fixed block 93, the movable block 92 is pressed to drive the rotating sleeve 9 to move axially along the rotating shaft 7. The rotating sleeve 9 will drive the strip bar 73 to slide in the strip groove 72. The rotating sleeve 9 will also squeeze the first spring 91. As the movable block 92 passes over the fixed block 93, the first spring 91 will transmit the elastic force to the rotating sleeve 9, so that the rotating sleeve 9 drives the strip bar 73 to slide in the opposite direction along the strip groove 72. When the rotating sleeve 9 produces a back and forth activity in the axial direction of the rotating shaft 7, the entire rotating sleeve 9 drives the pocket claw 6 to produce a lateral vibration, thereby The material at the inner opening of the claw 6 is screened, so that some small-sized materials can smoothly flow back to the bottom of the screen bucket 4 along the gaps between the adjacent claws 6; in the process of the claw 6 scooping up the material, the opening of the strip groove 72 faces downward, further preventing the material from falling into the strip groove 72. Even if the material falls into the strip groove 72, it will flow out with gravity. The fixed block 93 is only arranged at the rear side of the rotating shaft 7, so that the claw 6 can shake sideways immediately after scooping up the material, so as to screen it in time and make the small-particle material return to the bottom of the screen bucket 4; as the claw 6 turns upward, the large-sized material at the inner opening of the claw 6 will slide into the inclined bucket 8, the movable block 92 will also pass over the fixed block 93 and rest against the inner wall of the screen bucket 4, so that the rotating sleeve 9 will not generate axial movement in the process of driving the pocket claw 6 to pass through the avoidance groove 81, so that the pocket claw 6 can smoothly pass through the avoidance groove 81; this embodiment will also be affected by the vibration of the vibrator 46; this embodiment uses the first spring 91 to cooperate with the movable block 92 to pass over the fixed block 93, so that the pocket claw 6 can scoop up the material and then shake it laterally, so that the small-sized material at the inner mouth of the pocket claw 6 can fall back to the bottom of the screen bucket 4, ensuring that the pocket claw 6 can accurately take away the material larger than the discharge gap 51.

[0030] Embodiment 4: the limiting strip 5 is arc-shaped; the lower end of the limiting strip 5 is arranged rearward compared to the upper end; the material from the back to the front can be padded by the lower end of the limiting strip 5.

[0031] In this embodiment, the outer wall of the rotating sleeve 9 is sleeved with a support ring 95 ; the number of the support rings 95 is consistent with the number of the limiting strips 5 ; the outer wall of the support ring 95 is fixedly connected to the upper end of the limiting strip 5 .

[0032] In this embodiment, the outer wall of the rotating sleeve 9 is provided with an annular groove 94; the number of the annular grooves 94 is consistent with the number of the support rings 95; the support ring 95 is rotatably connected in the annular groove 94; the front position of the inner bottom wall of the screen bucket 4 is fixedly connected to the wedge-shaped bar 47; the lower end of the limit bar 5 is provided with a wedge-shaped groove 52 along the lateral direction; the wedge bar 47 passes through multiple wedge-shaped grooves 52 at the lower end of the limit bar 5; the wedge bar 47 is slidably connected to multiple wedge grooves 52.

[0033] During operation, the material entering from the feed end 41 of the screen bucket 4 will roll along the screen 43 on the inner bottom wall of the screen bucket 4, and the material will roll from back to front along the inclined screen 43, and the material will contact with multiple limit bars 5, and the material smaller than the discharge gap 51 can pass through the discharge gap 51 and move forward to flow out, and the material larger than the discharge gap 51 will be intercepted by multiple limit bars 5. Since the lower end of the limit bar 5 is slidably connected to the wedge bar 47 through the wedge groove 52, and the upper end is rotatably connected to the rotating sleeve 9 through the support ring 95, the limit bar 5 is more solid and stable under the support of the support ring 95 and the wedge bar 47. The lower end is further back than the upper end, so under the action of the lower end of the limit bar 5, the large-sized material is padded by the lower end of the limit bar 5 during the forward movement, thereby forming a gap between the large-sized material and the inner bottom wall of the screen bucket 4, preparing for the subsequent scooping by the pocket claws 6. As the driving motor 71 rotates, the rotating shaft 7 drives the rotating sleeve 9 to rotate, and the rotating sleeve 9 drives the pocket claws 6 on the outer wall to pass through the discharge gap 51 from front to back during the rotation. Since there is a gap between the large-sized material and the inner bottom wall of the screen bucket 4, the pocket claws 6 can scoop up the large-sized material quickly and smoothly at the lower end, and the material turns from bottom to top with the pocket claws 6, and the rotating shaft 7 drives the rotating sleeve 9 to rotate. The sleeve 9 will drive the movable block 92 to pass over the fixed block 93, so that the rotating sleeve 9 and the claw 6 will fluctuate back and forth laterally. In order to increase the fluctuation frequency of the rotating sleeve 9, some V-shaped protrusions can be set at the contact positions of the movable block 92 and the fixed block 93, which can produce extrusion on each other without affecting the movable block 92 passing over the fixed block 93. During the axial movement of the rotating sleeve 9 along the rotating shaft 7, the annular groove 94 will be driven to move along the rotating sleeve 9, and the rotating sleeve 9 will drive the support ring 95 connected to the annular groove 94 to fluctuate back and forth axially. The support ring 95 will drive the connected limit strip 5 to fluctuate back and forth laterally, and the limit strip 5 will be close to the lower The ends slide with the wedge-shaped grooves 52 and the wedge-shaped strips 47, so the multiple limit strips 5 can move synchronously with the lateral movement of the rotating sleeve 9. In this way, during the lateral back-and-forth fluctuations of the multiple limit sleeves, the materials on the rear side of the discharge gap 51 are loosened, so that the small-sized materials can smoothly pass through the discharge gap 51 under the loosening; in this embodiment, the arc-shaped limit strip 5 is used to pad the intercepted materials by the lower end to form a gap with the inner bottom wall of the screen bucket 4, so that the claws 6 can smoothly scoop up the large-sized materials, and then the large-sized materials can be smoothly removed from the inside of the screen bucket 4, thereby protecting the experimental device while ensuring the stable transportation of other materials.

[0034] Embodiment 5: a blocking bar 82 is movably inserted into the avoidance groove 81 ; a spring piece 83 is fixedly connected to the lower surface of the inclined bucket 8 away from the screen bucket 4 ; and one end of the blocking bar 82 away from the screen bucket 4 is fixedly connected to the spring piece 83 .

[0035] In this embodiment, the upper surface of the blocking bar 82 located in the avoidance groove 81 is flush with the inner bottom wall of the inclined bucket 8 .

[0036] During operation, the claw 6 will pass through the avoidance groove 81 during the process of turning over from top to bottom. Since a blocking strip 82 is provided in the avoidance groove 81, the claw 6 will use its head to squeeze the blocking strip 82. The blocking strip 82 will overcome the elastic force of the spring sheet 83 when squeezed and turn downward. The blocking strip 82 will move out of the avoidance groove 81. After the claw 6 passes over the blocking strip 82, the spring sheet 83 will use its elastic force to drive the blocking strip 82 back into the avoidance groove 81. The blocking strip 82 will block the avoidance groove 81. 2 is flush with the inner bottom wall of the inclined bucket 8. As the claw 6 continues to move around the rotating shaft 7, the claw 6 scoops up the large-sized materials again, and as the claw 6 turns upward, the large-sized materials are poured into the inner side of the inclined bucket 8. Since the avoidance groove 81 at the inner bottom of the inclined bucket 8 is blocked by the blocking bar 82, and the upper surface of the blocking bar 82 is flush with the inner bottom wall of the inclined bucket 8, the large-sized materials will be directly moved along the flat inner bottom wall of the inclined bucket 8, avoiding the materials from being stuck in the avoidance groove 81.

[0037] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate directions or positional relationships based on the attached Figure 2 The orientation or positional relationship shown is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, it cannot be understood as limiting the scope of protection of the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0038] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A multi-spectral photoelectric sorting experimental device, comprising a separation chamber (1) connected end to end, a material receiving conveyor belt (11), a circulating material transfer conveyor belt (12), a lifting and feeding belt (13), a single-stage vibrating screen (2) and a sorting system body (3); the top of the separation chamber (1) is connected to a dust collector (14); characterized in that: The single-stage vibrating screen (2) comprises a screen bucket (4); a feed end (41) is arranged at the rear of the top of the screen bucket (4), and a discharge end (42) connected to the sorting system body (3) is arranged at the front; a screen (43) is arranged on the inner bottom wall of the screen bucket (4) in an inclined manner toward the discharge end (42); the bottom of the screen bucket (4) is connected to a receiving bin (44); the lower end of the receiving bin (44) is fixedly connected to a receiving pipe (45); a vibrator (46) is fixedly connected to the middle section of the top of the screen bucket (4); and limit bars (55) are evenly erected along the side at the lower position of the discharge end (42) of the screen bucket (4). ); adjacent limiting bars (5) form a discharge gap (51) in the lateral direction; an arc-shaped claw (6) is provided in the discharge gap (51); the upper position of the discharge end (42) of the sieve bucket (4) is connected to the rotating shaft (7) along the lateral rotation; the rotating shaft (7) is driven by a driving motor (71); the tail of the claw (6) is connected to the rotating shaft (7); the upper position of the discharge end (42) of the sieve bucket (4) is fixedly connected to the inclined bucket (8); the inclined bucket (8) is provided with an avoidance groove (81) corresponding to the claw (6); the claw (6) can pass through the discharge gap (51) from front to back.

2. A multi-spectral photoelectric sorting experimental device according to claim 1, characterized in that: In the moving direction of the catching claws (6), the catching claws (6) close to the end of the rotating shaft (7) are several body lengths ahead of the catching claws (6) close to the middle of the rotating shaft (7); after the multiple catching claws (6) scoop up the material in the discharge gap (51), the material converges toward the middle of the rotating shaft (7).

3. The multi-spectral photoelectric sorting experimental device according to claim 1, characterized in that: The outer wall of the rotating shaft (7) is provided with a strip groove (72) along the axial direction; a strip bar (73) is slidably connected in the strip groove (72); a rotating sleeve (9) is slidably sleeved on the outer wall of the rotating shaft (7) along the axial direction; the axial length of the rotating sleeve (9) is less than the axial length of the rotating shaft (7); the inner wall of the rotating sleeve (9) is fixedly connected to the strip bar (73); the tail of the claw (6) is fixedly connected to the outer wall of the rotating sleeve (9); one end of the rotating sleeve (9) is connected to the inner wall of the sieve bucket (4). The rotating sleeve (9) is abutted against a first spring (91); the first spring (91) is sleeved on the outer wall of the rotating shaft (7); the other end of the rotating sleeve (9) is fixedly connected to a movable block (92); a fixed block (93) is arranged at a position corresponding to the inner wall of the sieve bucket (4) and the movable block (92); the contact position between the fixed block (93) and the movable block (92) is in an arc shape; after the movable block (92) passes through the fixed block (93), the rotating sleeve (9) can move axially along the rotating shaft (7).

4. A multi-spectral photoelectric sorting experimental device according to claim 3, characterized in that: The tail of the scooping claw (6) is fixedly connected to a position of the outer wall of the rotating sleeve (9) circumferentially away from the strip (73); after the scooping claw (6) scoops up the material, the strip groove (72) opens downward.

5. The multi-spectral photoelectric sorting experimental device according to claim 3, characterized in that: The fixed block (93) is located on the rear side of the rotating shaft (7); and the movable block (92) is located close to the tail of the claw (6) in the circumferential direction of the rotating sleeve (9).

6. The multi-spectral photoelectric sorting experimental device according to claim 3, characterized in that: The limiting strip (5) is arc-shaped; the lower end of the limiting strip (5) is arranged rearward compared to the upper end; the material from the back to the front can be padded by the lower end of the limiting strip (5).

7. The multi-spectral photoelectric sorting experimental device according to claim 6, characterized in that: The outer wall of the rotating sleeve (9) is sleeved with a support ring (95); the number of the support rings (95) is the same as the number of the limiting strips (5); and the outer wall of the support ring (95) is fixedly connected to the upper end of the limiting strip (5).

8. The multi-spectral photoelectric sorting experimental device according to claim 7, characterized in that: The outer wall of the rotating sleeve (9) is provided with an annular groove (94); the number of the annular grooves (94) is the same as the number of the supporting rings (95); the supporting ring (95) is rotatably connected in the annular groove (94); the front position of the inner bottom wall of the sieve bucket (4) is fixedly connected to a wedge-shaped bar (47); the lower end of the limiting bar (5) is provided with a wedge-shaped groove (52) penetrating along the lateral direction; the wedge-shaped bar (47) passes through a plurality of wedge-shaped grooves (52) at the lower end of the limiting bar (5); and the wedge-shaped bar (47) is slidably connected to the plurality of wedge-shaped grooves (52).

9. The multi-spectral photoelectric sorting experimental device according to claim 1, characterized in that: A blocking bar (82) is movably inserted into the avoidance groove (81); a spring sheet (83) is fixedly connected to a position of the lower surface of the inclined bucket (8) away from the screen bucket (4); and one end of the blocking bar (82) away from the screen bucket (4) is fixedly connected to the spring sheet (83).

10. The multi-spectral photoelectric sorting experimental device according to claim 9, characterized in that: The upper surface of the blocking strip (82) located in the avoidance groove (81) is flush with the inner bottom wall of the inclined bucket (8).

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