Coal gangue sorting device based on visual identification

Abstract

The utility model discloses a coal gangue sorting device based on visual identification, and relates to the technical field of coal gangue sorting, the coal gangue sorting device comprises a shell, a plurality of groups of push shafts are rotatably arranged in the shell at equal intervals, a plurality of groups of hexagonal rings are fixed on the outer wall of each group of push shafts at equal intervals, and two groups of L arms extending to the upper part of the shell are fixed on the outer wall of the shell; an L-shaped arm is obliquely assembled at the top end of one set of L-shaped arms, and a collecting hopper is movably arranged at the position, below the multiple sets of pushing shafts, in the shell. Preliminary separation is completed under rolling of the multiple sets of pushing shafts, large coal gangue blocks are discharged out of the outer side and shake off a coal layer attached to the outer wall, data extraction of the coal gangue is achieved through the high-speed camera, the coal gangue can be accurately recognized in the follow-up process, the production quality of formed coal is improved, meanwhile, the collecting hopper below can vibrate, and the coal gangue blocks are separated from the coal layer. The secondary separation step is assisted, small coal gangue blocks are separated out, and therefore the quality of finished coal separation can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to coal gangue sorting technical field, concretely is a coal gangue sorting device based on visual identification. BACKGROUND

[0002] Coal is the most abundant and widely distributed energy in the world. In recent years, China's demand for coal has increased substantially. Coal gangue is a kind of black gray rock with low carbon content associated with coal seam in the process of coal formation, and is a solid waste discharged in the process of coal mining and washing. Therefore, before the utilization of coal, the accurate sorting of coal gangue must be carried out.

[0003] The traditional coal and gangue sorting method includes manual sorting and mechanical sorting. The mechanical sorting has large equipment and complex process, and the manual gangue sorting relies on the experience of workers. Long time work will lead to the decline of workers' attention, affecting the accuracy of sorting. Moreover, because the moisture of newly mined raw coal is large, the surface of coal gangue is often covered with a layer of coal powder, which makes it difficult to distinguish coal gangue and coal, which is not conducive to the visual identification of the coal gangue sorting system, and the difference characteristics of coal and coal gangue cannot be obtained, so that the threshold for distinguishing coal and coal gangue cannot be set, and the classification efficiency of coal and coal gangue is low. Therefore, a coal gangue sorting device based on visual identification is proposed. CONTENT OF THE UTILITY MODEL

[0004] Therefore, the utility model aims to provide a coal gangue sorting device based on visual identification to solve the technical problems in the above background.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a coal gangue sorting device based on visual identification, comprising a shell, a plurality of groups of push shafts are rotationally arranged in the shell, a plurality of groups of hexagonal rings are fixed on the outer wall of each group of push shafts, two groups of L arms extending above the shell are fixed on the outer wall of the shell, the top end of one group of L arms is obliquely assembled with an L arm, a collecting hopper is movably arranged below the plurality of groups of push shafts in the shell, two groups of stress plates are symmetrically fixed in the collecting hopper, and two groups of discharge frames are fixed at the bottom end of the two groups of collecting hoppers.

[0006] A plurality of groups of net frames are obliquely and staggeredly fixed on the left and right inner walls of each group of discharge frames, a filter screen is fixed in the net frame, a plurality of groups of guide strips are arranged on the top end of the net frame and located on the upper surface of the filter screen, and two groups of fans are assembled between the two groups of discharge frames.

[0007] As an optimal technical scheme of the coal gangue sorting device based on visual identification of the utility model, a bottom plate is fixed at the position close to the bottom in the shell, and the fan is assembled at the top end of the bottom plate.

[0008] As a kind of based on visual identification's coal gangue sorting device preferred technical scheme of the utility model, the top of the stressed plate is in convex state, and the top of the stressed plate is inlaid with three groups of second positive magnetic blocks, the outer wall of the driving shaft located directly above the second positive magnetic block is inlaid with first positive magnetic block, the number and position of the first positive magnetic block correspond to the second positive magnetic block.

[0009] As a kind of based on visual identification's coal gangue sorting device preferred technical scheme of the utility model, the one end of each group of the driving shaft extends to the outside of the shell and is fixed with driving shaft, and the outer wall of each adjacent three groups of the driving shaft is sleeved with belt, and the end portion of the driving shaft close to the edge is provided with driving motor fixed on the outer wall of the shell.

[0010] As a kind of based on visual identification's coal gangue sorting device preferred technical scheme of the utility model, the one end of the shell is obliquely fixed with baffle, and the contact position of the baffle and the driving shaft is reserved with corresponding notch.

[0011] As a kind of based on visual identification's coal gangue sorting device preferred technical scheme of the utility model, another group of the L arm bottom end is assembled with multiple groups of atomizing nozzles above the driving shaft, and the outer wall of the L arm is provided with water pipe connected with the atomizing nozzle.

[0012] As a kind of based on visual identification's coal gangue sorting device preferred technical scheme of the utility model, the both ends of the discharging frame are provided with sliding block extending into the shell, the inner wall of the shell is provided with stroke groove at the contact position of the sliding block, and the stroke groove is provided with spring fixed with the sliding block.

[0013] As described above, the utility model mainly has the following beneficial effects:

[0014] The utility model completes preliminary sorting by the rolling of multiple groups of driving shafts, makes large coal gangue discharge outside and shake off the coal seam attached to the outer wall, realizes the data extraction of coal gangue by high-speed camera, can provide subsequent accurate identification of coal gangue, improves the quality of raw coal, and at the same time makes the lower material collecting hopper vibrate, assists to complete secondary sorting step, makes small coal gangue be sorted out, so that the quality of coal sorting can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the first perspective structural drawing of the utility model;

[0016] Figure 2 It is the second perspective structural drawing of the utility model;

[0017] Figure 3 It is the structure drawing of the material collecting hopper and the discharging frame of the utility model;

[0018] Figure 4This is a side sectional view of the outer shell and the hopper of this utility model;

[0019] Figure 5 This is a schematic diagram of the structure of the drive shaft of this utility model;

[0020] Figure 6 This is a top view of the wire frame structure of this utility model.

[0021] In the diagram: 100, outer casing; 101, baffle; 102, base plate; 103, travel groove;

[0022] 110. Drive shaft; 111. Hexagonal ring; 112. First positive magnet; 120. L-arm; 121. Atomizing nozzle; 122. Water pipe; 130. High-speed camera; 140. Drive shaft; 150. Drive motor; 160. Collection hopper; 170. Force plate; 171. Second positive magnet; 180. Discharge frame; 181. Slider; 182. Mesh frame; 183. Guide bar; 184. Filter screen; 190. Fan. Detailed Implementation

[0023] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0024] The embodiments of this utility model will be described below based on its overall structure.

[0025] A visual recognition-based coal gangue sorting device, such as Figure 1 and Figure 6 As shown, the device includes a housing 100, within which multiple sets of push shafts 110 are equidistantly rotatable. Each set of push shafts 110 has several sets of hexagonal rings 111 fixed at equal intervals on its outer wall. The outer wall of the housing 100 is fixed with two sets of L-arms 120 extending to the top of the housing 100. The top of one set of L-arms 120 is obliquely fitted with an L-arm 120. Inside the housing 100, below the multiple sets of push shafts 110, a collection hopper 160 is movably arranged. Two sets of force plates 170 are symmetrically fixed inside the collection hopper 160. The bottom ends of the two sets of collection hoppers 160 are fixed with two sets of discharge frames 180.

[0026] Each set of feeding frames 180 has an inclined inner wall and multiple sets of mesh frames 182 fixed in an alternating manner. A filter screen 184 is fixed inside the mesh frame 182. Several sets of guide strips 183 are provided on the top of the mesh frame 182 on the upper surface of the filter screen 184. Two sets of fans 190 are installed between the two sets of feeding frames 180.

[0027] The top of the stress plate 170 is convex, and three groups of second positive magnetic blocks 171 are embedded and fixed in the top of the stress plate 170. The outer wall of the push shaft 110 located directly above the second positive magnetic block 171 is embedded and fixed with a first positive magnetic block 112. The number and position of the first positive magnetic block 112 correspond to the second positive magnetic block 171. The bottom end of the stress plate 170 is fixed with a plurality of support columns and a collecting hopper 160.

[0028] Both ends of the discharging frame 180 are provided with sliding blocks 181 extending into the shell 100. The inner wall of the shell 100 is provided with a stroke groove 103 at the contact position of the sliding block 181. The stroke groove 103 is provided with a spring fixed with the sliding block 181.

[0029] The mixed raw materials of coal and coal gangue can be placed into the shell 100 from top to bottom. A plurality of push shafts 110 rotate synchronously, so that the coal powder and the coal gangue smaller than the gap between the two push shafts 110 fall to the lower side. The hexagonal ring 111 on the outer wall of the push shaft 110 will generate an impact force on the residual large coal gangue and coal block and will be pushed to one side, so that the coal powder attached to the outer wall of the coal gangue falls and then enters between the two adjacent push shafts 110. The hexagonal ring 111 will knock the coal block and crush it, and the coal block will fall from the gap between the two push shafts 110 to the lower side. Since the hardness of the coal gangue is high, the hexagonal ring 111 will be pushed to the lower side of the shell 100 and then transported to the outside of the shell 100 by the transmission belt. At this time, the high-speed camera 130 extracts the image features, threshold values and other data of the coal gangue on the push shaft 110. After the terminal transmits and processes these information through the software, the required image information is synthesized, and the accurate identification of the coal gangue is realized in sequence.

[0030] The fallen coal powder and small coal gangue will be assisted by the collecting hopper 160 (the convex stress plate 170 at the top will not allow the coal and small coal gangue to stay), and because the channel size formed by the side plate of the stress plate 170 and the collecting hopper 160 is small, the coal powder and the coal gangue will slide along the inclined inner wall of the collecting hopper 160 and enter the two discharging frames 180, and then fall on the inclined surface of the filter screen 184. The coal powder will fall through the filter screen 184. At this time, the fan 190 generates a blowing force to one side on the fallen coal powder, so that the coal powder falls on the conveying belt for collecting coal powder, and the sorting step of coal drying is completed.

[0031] The coal gangue remaining on the inclined surface of the filter screen 184 will be blocked by the guide strip 183, so that its walking path from the filter screen 184 and the screen frame 182 is longer, preventing a large amount of coal gangue and coal powder from falling synchronously, so that the fan 190 can better blow the coal powder to the conveying belt. When the coal gangue falls (the coal gangue belongs to solid), it will directly fall on the conveying belt for conveying coal gangue.

[0032] When the plurality of push shafts 110 rotate, the first positive magnetic block 112 on the outer wall of the push shaft 110 directly above the stress plate 170 will alternately be in the closest position with the second positive magnetic block 171, and repulsion will occur between the two, causing the stress plate 170 and the collection hopper 160 to move downward. At this time, the sliders 181 at both ends of the discharging frame 180 will move downward in the stroke groove 103 to compress the spring. With the rotation of the push shaft 110, the collection hopper 160 and the discharging frame 180 will vibrate up and down, thereby preventing the stress plate 170 and the collection hopper 160 from being blocked on both sides, and accelerating the speed of the coal powder passing through the filter screen 184, and timely discharging small pieces of coal gangue, ensuring the separation efficiency and high quality of the coal gangue.

[0033] Please refer to Figure 3 and Figure 4 The bottom plate 102 is fixed in the shell 100 near the bottom position, and the fan 190 is assembled at the top end of the bottom plate 102.

[0034] The purpose is to start and stabilize the support of the fan 190, and at the same time, two sets of transmission belts can be placed on one side of the bottom plate 102 for collecting coal blown to one side.

[0035] Please refer to Figure 1 One end of each push shaft 110 extends to the outside of the shell 100 and is fixed with a driving shaft 140, and a belt is sleeved on the outer wall of each adjacent three driving shafts 140. The end portion of the driving shaft 140 near the edge is installed with a driving motor 150 fixed on the outer wall of the shell 100.

[0036] The outer wall diameter of the driving shaft 140 located in the middle of a set of belts is greater than the size of the two sides, so that the three driving shafts 140 in a set of belts can be synchronously driven, and under the driving of the driving motor 150, a plurality of push shafts 110 can be synchronously and uniformly rotated.

[0037] Please refer to Figure 1 and Figure 2 One end of the shell 100 is obliquely fixed with a baffle 101, and the baffle 101 is provided with a corresponding notch at the position in contact with the push shaft 110.

[0038] The coal and coal gangue put in are blocked so that they can pass through the sorting step of the push shaft 110.

[0039] Please refer to Figure 1 and Figure 2 Another set of L-shaped arms 120 are assembled with a plurality of atomizing nozzles 121 at the bottom end above the push shaft 110, and the outer wall of the L-shaped arm 120 is provided with a water pipe 122 connected with the atomizing nozzle 121.

[0040] The dust generated during the separation of coal gangue is treated to ensure that the surrounding environment will not harm the health of the workers.

[0041] In use, the mixed raw materials of coal and coal gangue can be placed into the outer shell 100 from top to bottom, and multiple groups of the pushing shafts 110 are synchronously rotated to make the coal powder and the coal gangue smaller than the gap between the two groups of the pushing shafts 110 fall to the lower side, and the hexagonal ring 111 on the outer wall of the pushing shaft 110 will generate an impact force on the residual large coal gangue and coal blocks and push them to one side, so that the coal powder attached to the outer wall of the coal gangue falls and then enters between the two groups of the pushing shafts 110, and the hexagonal ring 111 will knock the coal blocks to be crushed and fall from the gap between the two groups of the pushing shafts 110 to the lower side. Since the coal gangue has high hardness, it will be pushed by the hexagonal ring 111 to be discharged to the outside of the outer shell 100, and then be transported away by the transmission belt for conveying the coal gangue. At this time, the high-speed camera 130 extracts the image features, threshold values and other data of the coal gangue on the pushing shaft 110, and the terminal transmits these information after being processed by the software, and then synthesizes the required image information, so as to realize the accurate identification of the coal gangue in turn.

[0042] The fallen coal powder and small coal gangue will slide along the inclined inner wall of the collecting hopper 160 under the assistance of the collecting hopper 160 (the convex stress plate 170 at the top will not make the coal and small coal gangue stay), and since the channel size formed by the side plate of the stress plate 170 and the collecting hopper 160 is small, the coal powder and the coal gangue will slide along the inclined inner wall of the collecting hopper 160 into the two groups of the discharging frame 180, and then fall on the inclined surface of the filter screen 184. The coal powder will fall through the filter screen 184, and at this time, the fan 190 generates a blowing force to one side on the fallen coal powder, so that the coal powder falls on the conveying belt for collecting the coal powder, and then the sorting step of the coal drying is completed.

[0043] The coal gangue staying on the inclined surface of the filter screen 184 will have a long walking path on the filter screen 184 and the screen frame 182 under the blockage of the guide strip 183, so as to prevent a large amount of coal gangue from falling synchronously with the coal powder, so that the fan 190 can better blow the coal powder to the conveying belt. When the coal gangue falls (the coal gangue belongs to solid), it will directly fall on the conveying belt for conveying the coal gangue.

[0044] While multiple groups of the pushing shafts 110 are rotating, the first positive magnetic block 112 on the outer wall of the pushing shaft 110 directly above the stress plate 170 will alternately be in the closest position with the second positive magnetic block 171, and repulsion will be generated between the two, so as to make the stress plate 170 and the collecting hopper 160 move downward. At this time, the sliding blocks 181 at both ends of the discharging frame 180 will move downward in the stroke groove 103 to compress the springs. With the rotation of the pushing shaft 110, the collecting hopper 160 and the discharging frame 180 will vibrate up and down, so as to prevent the stress plate 170 and the collecting hopper 160 on both sides from being blocked, and at the same time, the speed of the coal powder passing through the filter screen 184 can be accelerated, and the small coal gangue can be timely discharged, so as to ensure that the sorting efficiency and quality of the coal gangue are high.

[0045] Although the embodiments of the utility model have been shown and described, the specific embodiments are only the explanation of the utility model, and are not the limitation of the utility model, and the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable way, and the person skilled in the art can make the modification, replacement and change of the embodiments without the creative contribution after reading the specification without departing from the principles and the purpose of the utility model, but as long as in the claim range of the utility model, it is protected by the patent law.

Claims

1. A coal gangue sorting device based on visual recognition, comprising a shell (100), characterized in that: A plurality of groups of push shafts (110) are rotationally arranged equidistantly in the shell (100), the outer wall of each group of the push shafts (110) is fixed with a plurality of groups of hexagonal rings (111) equidistantly, the outer wall of the shell (100) is fixed with two groups of L-shaped arms (120) extending above the shell (100), the top end of one group of the L-shaped arms (120) is obliquely assembled with an L-shaped arm (120), a collecting hopper (160) is movably arranged below the plurality of groups of push shafts (110) in the shell (100), two groups of stress plates (170) are fixed symmetrically in the collecting hopper (160), and two groups of discharging frames (180) are fixed to the bottom ends of the two groups of collecting hoppers (160). A plurality of groups of net frames (182) are obliquely and staggeredly fixed to the left and right inner walls of each group of the discharging frames (180), a filter screen (184) is fixed in the net frame (182), a plurality of guide strips (183) are arranged on the top end of the net frame (182) and located on the upper surface of the filter screen (184), and two groups of fans (190) are assembled between the two groups of discharging frames (180).

2. The coal gangue sorting device based on visual recognition according to claim 1, characterized in that: A bottom plate (102) is fixed to the position close to the bottom in the shell (100), and the fan (190) is assembled to the top end of the bottom plate (102).

3. The coal gangue sorting device based on visual recognition according to claim 1, characterized in that: The top of the stress plate (170) is in a convex state, and three groups of second positive magnetic blocks (171) are embeddedly fixed in the top of the stress plate (170), a first positive magnetic block (112) is embeddedly fixed to the outer wall of the push shaft (110) located directly above the second positive magnetic block (171), and the number and position of the first positive magnetic block (112) correspond to those of the second positive magnetic block (171).

4. The coal gangue sorting device based on visual recognition according to claim 1, characterized in that: One end of each group of the push shafts (110) extends to the outside of the shell (100) and is fixed with a driving shaft (140), the outer wall of each group of adjacent three groups of the driving shafts (140) is sleeved with a belt, and the end portion of the driving shaft (140) close to the edge is mounted with a driving motor (150) fixed to the outer wall of the shell (100).

5. The coal gangue sorting device based on visual recognition according to claim 1, characterized in that: One end of the shell (100) is obliquely fixed with a baffle (101), and a corresponding gap is reserved at the position where the baffle (101) contacts the push shaft (110).

6. The coal gangue sorting device based on visual recognition according to claim 1, characterized in that: A plurality of groups of atomizing nozzles (121) are assembled to the bottom end of the other group of the L-shaped arms (120) and located above the push shaft (110), and the outer wall of the L-shaped arm (120) is provided with a water pipe (122) connected with the atomizing nozzle (121).

7. The coal gangue sorting device based on visual recognition according to claim 1, characterized in that: The two ends of the discharging frame (180) are provided with sliding blocks (181) extending into the shell (100), the inner wall of the shell (100) is provided with a stroke groove (103) at the position contacting the sliding block (181), and the stroke groove (103) is provided with a spring fixed with the sliding block (181).

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