A multispectral photoelectric sorting experimental device

Abstract

The present application relates to the technical fields of multispectral photoelectric sorting, in particular to a kind of multispectral photoelectric sorting experimental device;Including first and last connected separation chamber, material receiving conveyor belt, circulating material conveying belt, lifting feeding belt, single-stage vibrating screen and sorting system main body;The separation chamber top is communicated with dust collector;The single-stage vibrating screen includes sieve hopper;The sieve hopper top rear is provided with feed end, and front side is provided with discharge end communicated with sorting system main body;The sieve hopper inner bottom wall is inclinedly provided with screen mesh towards discharge end;The sieve hopper bottom is connected with receiving bin;The receiving bin lower end is fixedly connected with receiving pipe;The present application is shovelled up by paw to be intercepted by limiting strip Large specification material is rejected, to ensure that the material passage of the discharge end of single-stage vibrating screen is unobstructed, to avoid large specification material into sorting system main body to cause damage on the one hand, on the other hand, ensure that material conveying in sorting experimental device is smooth.

Description

Technical Field

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

[0002] The multispectral photoelectric sorting experimental device can identify and sort coal gangue, while also enabling the recycling and refinement of mineral resources (manganese, tungsten, copper, iron, gold, lead, zinc, phosphate rock, fluorite, and kaolin) and solid waste renewable resources (such as dismantled photovoltaic panel glass and metal, and new energy vehicle battery electrode metal). It can capture and analyze images covering visible light, dual-band infrared, ultraviolet fluorescence, and dual-energy X-rays, and has rejection and sorting capabilities. It can analyze and online characterize material properties, composition, and morphological distribution, including density grade, ash content range, particle size distribution, and transport and bulk characteristics. It can reveal the identification and sorting mechanisms for various materials, including coal, gangue, ore, and solid waste, and establish the inherent relationship between key sorting parameters and the material properties themselves. It can distinguish materials from the surface to the interior, enabling 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, an elevating and feeding belt, a single-stage vibrating screen, a sorting system body, and a dust removal device. The materials separated from the separation chamber are transported to the circulating material transfer conveyor belt via their respective material receiving conveyor belts, and then to the single-stage vibrating screen via the elevating and feeding belt. After being screened by the single-stage vibrating screen, they enter the sorting system body. The sorting system body cooperates with the separation chamber to sort the materials, 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 debris from the materials. Materials that exceed the screen specifications of the single-stage vibrating screen fall directly into the sorting system body. In order to prevent some large-sized materials from entering the sorting process and causing damage to the belt, a limit assembly is set at the discharge end of the single-stage vibrating screen to block the material. Although the limit assembly 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, resulting in poor material transportation. Summary of the Invention

[0004] In order to make up for the shortcomings of the existing technology, the present invention proposes a multi-spectral photoelectric sorting experimental device. The present invention uses claws to scoop up and remove large-sized materials intercepted by the limit bar, thereby ensuring that the material channel at the discharge end of the single-stage vibrating screen is unobstructed. On the one hand, this prevents large-sized materials from entering the sorting system body and causing damage, and on the other hand, ensures smooth material transportation in the sorting experimental device.

[0005] The technical solution adopted by the present invention to solve its technical problems is: the multi-spectral photoelectric sorting experimental device described in the present invention includes 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 includes a screen bucket; the top of the screen bucket is provided with a feed end at the rear, and a discharge end connected to the sorting system body is provided at the front; the bottom wall of the screen bucket is provided with a screen mesh inclined toward the discharge end; the bottom of the screen bucket is connected to a collecting bin; the collecting bin is connected to a collecting bin. The lower port of the hopper 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 limit bars are evenly erected along the side at the lower position of the screen bucket discharge end; the adjacent limit bars form a discharge gap in the side direction; an arc-shaped claw is provided in the discharge gap; the upper position of the screen bucket discharge end is connected to the rotating shaft along the side rotation; the rotating shaft is driven by a drive motor; the tail of the claw is connected to the rotating shaft; the upper position of the screen bucket discharge end 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 discharge 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; a strip bar is slidably connected in the strip groove; a rotating sleeve is slidably sleeved on the outer wall of the rotating shaft 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 the movable block; a fixed block is provided at the corresponding position of 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 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 bars; the outer wall of the support ring is fixedly connected to the upper end of the limit bar.

[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 passing through along the side; the wedge bar passes through multiple wedge-shaped grooves at the lower end of the limit bar; the wedge bar is slidably connected to the multiple wedge 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:

[0016] 1. The present invention uses claws to scoop up and remove large-sized materials intercepted by the limit bars, thereby ensuring that the material channel at the discharge end of the single-stage vibrating screen is unobstructed. On the one hand, this prevents large-sized materials from entering the sorting system body and causing damage, and on the other hand, ensures smooth material transportation in the sorting experimental device.

[0017] 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 shovel up the large-sized materials. The large-sized materials intercepted by the rear side of multiple limit bars are shoveled up from both sides toward the middle in turn. After the large-sized materials are scooped up by multiple claws, the materials will converge along the inner mouth of the claws toward the middle position 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.

[0018] 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 materials larger than the discharge gap specifications. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Figure 1 It is a perspective view of the present invention;

[0021] Figure 2 It is a three-dimensional diagram of a single-stage vibrating screen in the present invention;

[0022] Figure 3 It is a three-dimensional diagram of the components inside the discharge end of the screen bucket of the present invention;

[0023] Figure 4 yes Figure 3 Enlarged view of point A in the middle;

[0024] Figure 5 It is a three-dimensional diagram of the rotating sleeve and the rotating shaft in the present invention;

[0025] Figure 6 It is a three-dimensional diagram of the oblique bucket of the present invention;

[0026] Figure 7 yes Figure 6 A three-dimensional image from another angle;

[0027] Figure 8 It is a schematic diagram of the sorting parts within the main body of the sorting system of the present invention.

[0028] 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 receiving bin 44, material receiving 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

[0029] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0030] like Figures 1 to 8 As shown, the present invention includes the following embodiments:

[0031] Example 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 loading 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 includes 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 Tube 45; the middle position of the top of the screen bucket 4 is fixedly connected to the vibrator 46; the lower position of the discharge end 42 of the screen bucket 4 is evenly erected along the side with a limit bar 5; the adjacent limit bars 5 form a discharge gap 51 in the side direction; the discharge gap 51 is provided with an arc-shaped claw 6; the upper position of the discharge end 42 of the screen bucket 4 is connected to the rotating shaft 7 along the side rotation; the rotating shaft 7 is driven by a drive 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.

[0032] During operation, the material separated from the separation chamber 1 is discharged from the bottom and falls into the respective receiving conveyor belts 11. Under the transportation of the receiving conveyor belt 11, the material will be transported from the head to the tail and fall on the upper surface of the circulating material 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 conveyor belt 12, so as to prevent the material from rolling. The material is transported from the head to the tail of the circulating material conveyor belt 12 and falls on the lower position of the lifting feeding belt 13. The edge height of the circulating material conveyor belt 12 can be greater than the middle position, so as to further avoid the rolling of the material and facilitate the stable transportation of the material; the lifting feeding belt 13 will lift the material from the bottom position to a certain height and pour it along the feed 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 feeding belt 13 can automatically carry out material 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 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 feeding belt 13 to intercept excess material during the feeding process, so that the lifting feeding belt 13 can load material within its own capacity range, avoiding the dangerous situation of leakage and falling caused by excessive feeding; the receiving hopper at the upper end of the lifting 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 material after screening will move forward to the discharge end 42, and a limit bar 5 is set 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, namely the 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. The material larger than the discharge gap 51 will be intercepted by the vertical limit bar 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 the avoidance groove 81 on the inclined bucket 8 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 bar 5, ensuring the smooth flow of the discharge gap 51; the materials falling into the sorting system body 3 are sorted, and the sorting system body 3 is equipped with visible light, infrared, and ultraviolet image acquisition controllers; 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 image acquisition covers the entire belt width, 1.2m, and collects dual-energy X-ray transmission images. Industrial air conditioning Synchronously turn on heat dissipation; four sets of visible light cameras perform four-channel image acquisition, covering 1.2m. To acquire visible light images, the ultraviolet light source 34 and the halogen lamp 37 need to be turned off; to acquire ultraviolet images, the ultraviolet light source 34 is turned on, and the visible light source and the halogen lamp 37 are turned off. Four sets of visible light cameras are still used, and four channels are acquired to cover 1.2m; to acquire infrared images, the visible light source (i.e., LED light source 32) and the ultraviolet light source 34 need to be turned off, and the halogen lamp 37 light source is turned on. At the same time, the air-cooled radiator of the halogen lamp 37 works; the circulating material transfer conveyor belt 12 and the multiple material receiving conveyor belts 11 are turned on synchronously, the lifting and loading belt 13 is turned on separately, and the horizontal conveyor belt in the sorting system body 3 is turned on separately;The material flowing out from the discharge end 42 of the single-stage vibrating screen 2 is spread out flat and evenly dispersed into the sorting system body 3 for sorting. After the material moves from the sorting system body 3 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 is provided in the separation chamber 1 to prevent the material from rebounding after separation, 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 receiving conveyor belt 11 after separation, and a cycle experiment is carried out in this way; the sorting experimental device is integrated, integrating visible light, dual-band infrared, ultraviolet fluorescence, dual-energy X-ray multi-spectral image acquisition functions in one; it is also circulatory, 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 achieve identification and separation, and multi-source image acquisition and information fusion can be performed to accurately identify and separate materials;

[0033] 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. Therefore, 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 materials in the sorting system body 3 with large differences in specifications will cause light source obstruction, affecting the sorting experiment effect.

[0034] 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 large-sized materials from entering the sorting system body 3 and causing damage, and ensuring smooth material transportation in the sorting experimental device.

[0035] Example 2: In the moving direction of the scooping claws 6, the scooping claws 6 close to the end of the rotating shaft 7 are multiple body lengths ahead of the scooping claws 6 close to the middle of the rotating shaft 7; after the multiple scooping claws 6 scoop up the material in the discharge gap 51, the material converges toward the middle of the rotating shaft 7.

[0036] During operation, the rotation of the shaft 7 drives the multiple claws 6 to rotate around the shaft 7, and the materials exceeding the distance of the discharge gap 51 are intercepted by the multiple limit bars 5. As the claws 6 pass through the discharge gap 51 from front to back, the claws 6 can shovel up the large-sized materials intercepted on the rear side of the limit bars 5. Since the claws 6 are movable in the direction of movement, the claws 6 near the end of the shaft 7 are ahead of the claws 6 near the middle of the shaft 7 by multiple body lengths. Therefore, the claws 6 near the end of the shaft 7 enter the discharge gap 51 first and shovel up the large-sized materials. The large-sized materials intercepted by the rear side of multiple limit bars 5 are shoveled up in sequence from both sides toward the middle. After the large-sized materials are scooped up by multiple claws 6, the materials will converge along the inner opening of the claws 6 toward the middle position of the rotating shaft 7, thereby preventing the materials from sliding from the position near 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 opening 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.

[0037] Example 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 to the 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 is in contact with 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 the movable block 92; the inner wall of the screen bucket 4 and the movable block 92 are provided with a fixed block 93 at the corresponding position; 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.

[0038] 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 circumferentially away from the strip 73; after the scooping claw 6 scoops up the material, the strip groove 72 opens downward.

[0039] In this embodiment, the fixed block 93 is located on the rear side of the rotating shaft 7; the movable block 92 is located close to the tail of the claw 6 in the circumferential direction of the rotating sleeve 9.

[0040] During operation, the housing of the driving motor 71 is fixedly connected to the outer wall of the screen 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. The rotating rotating shaft 7 will drive the rotating sleeve 9 on the outer wall to rotate, and the rotating sleeve 9 will rotate 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 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 shovel up the large-sized materials on the rear side of the multiple limit bars 5. The inner mouth of the pocket claws 6 faces upward, and the rotating sleeve 9 will drive the movable block 92 to contact the fixed block 93. The contact position with the fixed block 93 is arc-shaped, so the two can squeeze each other. Under the squeezing 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 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 73 to slide in the opposite direction along the strip groove 72. When the rotating sleeve 9 produces a back and forth movement 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 gap between the adjacent claws 6; in the process of the claw 6 scooping up the material, the opening of the strip groove 72 is downward, further preventing the material from falling into the strip groove 72. Even if it falls into the strip groove 72, it will flow out with gravity. The fixed block 93 is only set 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 flips 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 produce axial movement in the process of driving the bag claw 6 to pass through the avoidance groove 81, so that the bag 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 cooperates with the first spring 91 to move the movable block 92 over the fixed block 93, so that the bag claw 6 can scoop up the material and then shake it laterally, so that the small-sized material at the inner mouth of the bag claw 6 can fall back to the bottom of the screen bucket 4, ensuring that the bag claw 6 can accurately take away the material larger than the discharge gap 51.

[0041] Example 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.

[0042] In this embodiment, a support ring 95 is sleeved on the outer wall of the rotating sleeve 9; 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.

[0043] 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 rings 95 are 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 side; 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.

[0044] During operation, the material entering from the feed end 41 of the screen bucket 4 will roll along the screen 43 of 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. 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 claws 6. As the drive motor 71 rotates, the rotating shaft 7 drives the rotating sleeve 9 to rotate, and the rotating sleeve 9 drives the 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 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 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 drops the claw 6 to 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. The rotating sleeve 9 will drive the annular groove 94 to move along the rotating shaft 7 during the axial movement. 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 bar 5 to fluctuate back and forth laterally. The limit bar 5 is close to the lower The ends slide with the wedge-shaped grooves 52 and the wedge-shaped bars 47, so that the multiple limit bars 5 can move synchronously with the lateral movement of the rotating sleeve 9. In this way, during the lateral back-and-forth fluctuation of the multiple limit sleeves, the material on the rear side of the discharge gap 51 is loosened, so that the small-sized material can smoothly pass through the discharge gap 51 under the loosening. In this embodiment, the intercepted material is padded by the lower end of the arc-shaped limit bar 5 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 material, and then the large-sized material 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.

[0045] 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 oblique 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 .

[0046] 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 .

[0047] During operation, the claw 6 will pass through the avoidance groove 81 during the process of turning from top to bottom. Since there is a blocking bar 82 in the avoidance groove 81, the claw 6 will use its head to squeeze the blocking bar 82. The blocking bar 82 will overcome the elastic force of the spring piece 83 when squeezed and turn downward, and the blocking bar 82 will move out of the avoidance groove 81. As the claw 6 passes over the blocking bar 82, the spring piece 83 will use its elastic force to drive the blocking bar 82 back into the avoidance groove 81, and the blocking bar 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, pours the large-sized materials 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 move directly along the flat inner bottom wall of the inclined bucket 8, avoiding the materials from being stuck in the avoidance groove 81.

[0048] 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.

[0049] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended 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); and is characterized in that: The single-stage vibrating screen (2) includes a screen bucket (4); a feed end (41) is provided at the rear of the top of the screen bucket (4), and a discharge end (42) connected to the sorting system body (3) is provided at the front; a screen (43) is provided on the inner bottom wall of the screen bucket (4) inclined 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); the middle position of the top of the screen bucket (4) is fixedly connected to a vibrator (46); and a limit bar (5) is 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 direction; 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; 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 to the strip bar (73); the outer wall of the rotating shaft (7) is provided with a rotating sleeve (9) slidably 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); 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 limit strips (5); the outer wall of the support ring (95) is fixedly connected to the upper end of the limit strip (5); 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 rings (95) are rotatably connected in the annular grooves (94).

2. The 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: One end of the rotating sleeve (9) abuts against the inner wall of the sieve bucket (4) via 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 sieve 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).

4. The 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 near 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; and 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: A wedge-shaped bar (47) is fixedly connected to the front position of the inner bottom wall of the screen bucket (4); a wedge-shaped groove (52) is provided along the side of the lower end of the limit bar (5); the wedge-shaped bar (47) passes through the multiple wedge-shaped grooves (52) at the lower end of the limit bar (5); and the wedge-shaped bar (47) is slidably connected to the multiple wedge-shaped grooves (52).

8. 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 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).

9. The multi-spectral photoelectric sorting experimental device according to claim 8, characterized in that: 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).

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