A laser intelligent coal quality detection and analysis device

Abstract

The application relates to the technical field of coal quality detection, in particular to a laser intelligent coal quality detection and analysis device, which comprises a support, a screening assembly, a spectrum detection assembly, a pressing plate and a box body are arranged on the support, sliding rails are fixedly connected to the box body, material boxes are slidably arranged on the sliding rails, a plurality of the material boxes are sequentially arranged along the sliding rails, the top and one end of the side wall of each material box are provided with an open mouth, the other end of the material box is formed into an extrusion section, a pull plate is rotatably connected to the material box, a strip-shaped hole is formed in the pull plate, a pull rod is fixedly connected to the material box, the plurality of material boxes are sequentially connected, a push rod is fixedly connected to the material box, one end of the push rod is located in the box body and is fixedly connected with a ball head, a first motor is installed in the box body, a first screw rod is connected with the output shaft of the first motor, the pitch of the spiral groove of the first screw rod gradually decreases near the spectrum detection assembly, the coal sample can be conveniently sent into a spectrum detector for spectrum analysis, and the effect of reducing the manual participation requirement of coal quality detection is achieved.

Description

Technical Field

[0001] This application relates to the field of coal quality testing technology, and in particular to a laser intelligent coal quality testing and analysis device. Background Technology

[0002] Coal is an important energy source and is widely used in industrial fields such as thermal power, construction, and chemical industry. Coal quality testing is a key step before coal is used. Existing technologies for analyzing coal quality include chemical analysis, physical testing, and spectroscopic analysis.

[0003] Current technologies typically employ spectral analysis to detect coal quality. This technique primarily acquires characteristic data from samples through spectral signals, enabling rapid analysis of coal composition, structure, and properties. It offers advantages such as speed, non-destructive testing, multivariate analysis, high sensitivity, and real-time monitoring. However, when testing mined coal, before sending the coal sample into the spectrometer, the broken sample must be manually removed and compressed.

[0004] The existing technical solutions mentioned above have the following drawbacks: they require a high degree of manual intervention for loading and unloading, are cumbersome to operate, and pose certain safety risks. Summary of the Invention

[0005] This application provides a laser-based intelligent coal quality detection and analysis device to facilitate the delivery of coal samples to a spectrometer for spectral analysis and reduce the need for manual intervention in coal quality testing.

[0006] The above-mentioned technical objective of this application is achieved through the following technical solution:

[0007] A laser-based intelligent coal quality detection and analysis device includes a support frame. A screening component is mounted at one end of the support frame, and a spectral detection component is installed on the support frame. A housing is fixedly connected to the support frame, and a slide rail is fixedly connected to the housing. The slide rail is annular, and multiple material boxes are slidably mounted on the slide rail. Each material box has an opening at its top and one side wall. An extrusion section is formed at the other end of each material box. The extrusion section of one of two adjacent material boxes is embedded in the opening of the side wall of the adjacent material box. A pull plate is rotatably connected to each material box, and the pull plate has a groove... The material box has a slotted hole, and a pull rod is fixedly connected to it. The slotted hole of the pull plate of one of the two adjacent material boxes is fitted onto the pull rod of the other material box, so that multiple material boxes are connected in sequence. A push rod is fixedly connected to the material box. One end of the push rod is located inside the box and is fixedly connected to a ball head. A first motor is installed inside the box. The output shaft of the first motor is connected to a first screw. The first screw is rotatably connected to the top of the box. The ball head is embedded in the spiral groove of the first screw. The pitch of the spiral groove of the first screw gradually decreases near the spectral detection component. A pressure plate is fixedly connected to the bracket.

[0008] By adopting the above technical solution, the first screw pushes the ball head in its spiral groove to slide along the length of the first screw, so as to push the material box above the first screw to move away from the screening component along the slide rail. The pull plate and pull rod can connect multiple material boxes, so as to realize that the material box on the slide rail is driven by the first screw to move along the slide rail, and the crushed coal sample is put into the screening component. The coal sample that meets the requirements falls into the material box below the screening component. When the material box moves to the end of the pressure plate near the spectral detection component, the coal sample in the material box is squeezed into a coal sample for spectral detection, and then moves to the bottom of the spectral detection component for spectral detection. After completing spectral analysis, the coal sample moves along the slide rail above the first motor with the material box. Simultaneously, the pitch of the spiral groove of the first screw gradually increases, facilitating the removal of the tested coal sample, cleaning the material box, and reuse. The gradually decreasing pitch of the first screw causes two adjacent material boxes to press against each other, thus compressing the coal sample for testing. Multiple continuously arranged material boxes move continuously on the slide rail, facilitating continuous spectral analysis of coal samples. This reduces manual operation steps in coal quality testing, improves the safety of coal sample testing, facilitates the delivery of coal samples to the spectrometer for spectral analysis, reduces the need for manual intervention in coal quality testing, and improves coal sample testing efficiency.

[0009] Optionally, the screening assembly includes a screen barrel fixedly connected to the support. The screen barrel has a feed inlet, a vibrator is installed inside the screen barrel, and an upper screen and a lower screen are fixedly connected inside the screen barrel. The screen hole diameter of the upper screen is larger than that of the lower screen. The upper screen is located above the lower screen. Both the upper and lower screens abut against the vibrator. The screen barrel has a discharge outlet, and a discharge plate is fixedly connected to the lower screen. One end of the discharge plate extends out of the discharge outlet.

[0010] By adopting the above technical solution, the crushed coal sample is put into the sieve bucket. The vibrator vibrates and drives the upper and lower sieves to screen the coal sample. The coal sample particles that meet the requirements fall along the lower sieve and the discharge plate into the material box below the discharge plate. This facilitates continuous coal sample spectral analysis, reduces manual operation steps in the coal quality testing process, lowers the human intervention requirements for coal quality testing, and improves the efficiency of coal sample testing.

[0011] Optionally, a second motor is installed inside the housing, and the output shaft of the second motor is connected to a second screw. The second screw is rotatably connected to the bottom of the housing, and the ball head is embedded in the helical groove of the second screw.

[0012] By adopting the above technical solution, the second motor drives the second screw to rotate. When the material box moves to the bottom of the second screw, the ball head at one end of the push rod connected to the material box is embedded in the spiral groove of the second screw. The rotation of the second screw pushes the ball head to drive the push rod and the material box to slide on the slide rail. This allows the material box passing under the second screw to move smoothly along the slide rail. At the same time, it can assist the first screw in pushing the material box to move on the slide rail, thereby improving the safety and stability of the material box when it moves on the slide rail.

[0013] Optionally, one end of the discharge plate is hinged with comb teeth, and a first elastic element is fixedly connected to the hinge point between the comb teeth and the discharge plate, with one end of the first elastic element fixedly connected to the discharge plate.

[0014] By adopting the above technical solution, the vibration generated by the vibrator can drive the comb teeth to vibrate in the material box containing the coal sample, which can stir the coal sample falling into the material box evenly, which is conducive to the subsequent pressing of the coal sample. The first elastic element can push the comb teeth to reset, ensuring the stability of the comb teeth operation.

[0015] Optionally, a collection box is provided at the bottom of the bracket.

[0016] By adopting the above technical solution, when the material box containing the tested coal sample moves to the top of the slide rail near the collection box, the coal sample in the material box falls into the collection box as the material box moves along the slide rail towards the bottom of the box, so as to collect and store the tested coal sample and reduce the waste of coal resources caused by coal quality testing.

[0017] Optionally, an air pipe is installed on the top of the collection box, and an air nozzle is installed on the air pipe.

[0018] By adopting the above technical solution, when the material box passes over the air pipe, the air nozzles installed at an angle on the air pipe spray air onto the inner wall of the material box to blow off the coal sample adhering to the inner wall of the material box. This makes it easier to refill the material box with coal sample for coal quality testing, facilitates cleaning of the material box, reduces the need for manual intervention, and improves the efficiency of coal sample testing.

[0019] Optionally, a rotating frame is fixedly connected to the bracket, and a rotating roller is installed on the rotating frame.

[0020] By adopting the above technical solution, when the material box containing the coal sample passes under the rotating roller, the rotating roller can rotate in contact with the top of the material box, which can flatten the coal sample on the top of the material box, making it easier for the coal sample in the material box to move to the bottom of the pressure plate for pressing, reducing the need for manual intervention in coal quality testing and improving the efficiency of coal sample testing.

[0021] Optionally, one section of the pressure plate is bent into an arc shape.

[0022] By adopting the above technical solution, one section of the pressure plate is bent, which pushes the coal sample at the top of the material box open and flattens the coal sample inside the material box, which is conducive to the subsequent pressing of the coal sample inside the material box.

[0023] Optionally, a light shield is fixed to the bracket.

[0024] By adopting the above technical solution, the light shield can reduce the interference of ambient light on the measurement results of the spectral detection component, improve the accuracy and working stability of the measurement results of the spectral detection component, and extend the service life of the spectral detection component.

[0025] Optionally, a light-shielding plate is fixedly connected inside the light-shielding cover, and at least two light-shielding plates are spaced apart, with brush bristles fixedly connected to the light-shielding plates.

[0026] By adopting the above technical solutions, the light-shielding plate and brush can help reduce the interference of ambient light on the measurement results of the spectral detection component, thereby improving the accuracy and operational stability of the measurement results of the spectral detection component.

[0027] In summary, this application has the following technical effects:

[0028] By setting up a box, slide rail, first screw and material box, the pitch of the first screw gradually decreases, causing two adjacent material boxes to squeeze each other, so as to compress the coal sample for coal sample testing. Multiple continuously set material boxes move continuously on the slide rail, which facilitates continuous coal sample spectral analysis, reduces manual operation steps in the coal quality testing process, improves the safety of coal sample testing, facilitates sending coal samples into the spectrometer for spectral analysis, reduces the manual intervention requirements of coal quality testing, and improves coal sample testing efficiency.

[0029] By setting up a vibrator, comb teeth and a first elastic element, the vibration generated by the vibrator can drive the comb teeth to vibrate in the material box containing the coal sample, which can stir the coal sample falling into the material box evenly, which is conducive to the subsequent pressing of the coal sample. The first elastic element can push the comb teeth to reset, ensuring the stability of the comb teeth operation.

[0030] By installing a light shield, the interference of ambient light on the measurement results of the spectral detection component can be reduced, thereby improving the accuracy and operational stability of the measurement results and extending the service life of the spectral detection component. Attached Figure Description

[0031] Figure 1 This is a structural diagram of the object of this application;

[0032] Figure 2 This is a prominent structural diagram of the box and hopper in this application;

[0033] Figure 3 This is a prominent structural diagram of the screening components in this application.

[0034] Explanation of reference numerals in the attached drawings: 1. Support frame; 11. Pressure plate; 12. First screw; 13. First motor; 14. Second screw; 15. Second motor; 2. Screening assembly; 21. Screen barrel; 22. Vibrator; 23. Upper screen; 24. Lower screen; 25. Discharge plate; 26. Comb teeth; 27. First elastic element; 3. Spectral detection assembly; 31. Light shield; 32. Light shield plate; 33. Brush bristles; 4. Collection box; 41. Air pipe; 42. Air nozzle; 5. Box body; 51. Slide rail; 6. Material box; 61. Extrusion section; 62. Pull plate; 621. Strip hole; 63. Pull rod; 64. Push rod; 65. Ball head; 7. Rotating frame; 71. Rotating roller. Detailed Implementation

[0035] The present application will be further described in detail below with reference to the accompanying drawings.

[0036] This application discloses a laser-based intelligent coal quality detection and analysis device, referring to... Figure 1 The detection and analysis device includes a bracket 1, which has a rectangular top. A screening component 2 is installed at one end of the top of the bracket 1 along its length. A spectral detection component 3 is installed on the bracket 1. Two light shields 31 are fixed to the bracket 1 by bolts. The two light shields 31 are spaced apart and are respectively arranged on both sides of the spectral detection component 3 along the length of the bracket 1. The end of the light shield 31 near the spectral detection component 3 abuts against the side wall of the spectral detection component 3. A collection box 4 is installed at the bottom of the bracket 1 away from the screening component 2. The top of the collection box 4 has an opening. A gas pipe 41 is installed at a section of the top of the collection box 4 near the bracket 1. Two gas pipes 41 are spaced apart. Both gas pipes 41 are connected to a high-pressure gas source. Gas nozzles 42 are installed on the gas pipes 41. Multiple gas nozzles 42 are spaced apart along the length of the gas pipes 41. The output end of the gas nozzles 42 is inclined towards the bracket 1.

[0037] Reference Figure 1 A box 5 is bolted to the support 1, and a slide rail 51 is bolted to the box 5. The slide rail 51 is circular, and two slide rails 51 are spaced apart. Both slide rails 51 are fitted onto the outer wall of the box 5 along the length of the box 5. A material box 6 is slidably connected to both slide rails 51. Multiple material boxes 6 are arranged sequentially along the slide rails 51. The top of the material box 6 and the side wall at the end opposite to the moving direction of the slide rail 51 are open. The end of the material box 6 facing the moving direction of the slide rail 51 is processed to form an extrusion section 61. The extrusion section 61 of one of the two adjacent material boxes 6 is embedded into the opening of the side wall of the other material box 6, so that the two adjacent material boxes 6 are connected, thereby connecting multiple material boxes 6 sequentially.

[0038] Reference Figure 1 and Figure 2Pull plates 62 are rotatably connected to both side walls of the material box 6 near the extrusion section 61. In this embodiment, the pull plate 62 is a strip plate. A strip hole 621 is opened on the plate surface of the pull plate 62 away from the extrusion section 61. Pull rods 63 are welded to both side walls of the open section of the material box 6 near the side wall. Two adjacent material boxes 6 are connected by pull plates 62 and pull rods 63. The strip holes 621 of the two pull plates 62 of one material box 6 are respectively fitted onto the two pull rods 63 on both sides of the other material box 6. The pull rods 63 are slidably connected to the inner wall of the strip hole 621.

[0039] Reference Figure 2 A pressure plate 11 is welded to a section of the support 1 near the screen barrel 21. The pressure plate 11 is located above the material box 6 and its surface is attached to and slides on the top of the material box 6. The section of the pressure plate 11 near the screen barrel 21 is bent into an arc shape away from the support 1. A rotating frame 7 is fixed to a section of the support 1 near the screen barrel 21. A rotating roller 71 is installed on the rotating frame 7. The rotating roller 71 is located above the material box 6 and its peripheral wall is attached to the top of the material box 6 and rolls. The side wall of the pressure plate 11 near the rotating frame 7 is welded to the rotating frame 7. A light shield 32 is fixed to the top of the light shield 31 facing the support 1 by bolts. Brush bristles 33 are glued to the side of the light shield 32 facing the support 1. Three light shields 32 are arranged at intervals. The top surface of the pressure plate 11 abuts against one end of the brush bristles 33 of the light shield 32 closest to it. The end of the brush bristles 33 connected to the light shield 32 away from the pressure plate 11 abuts against the top of the material box 6.

[0040] Reference Figure 2 A push rod 64 is welded to the bottom of the material box 6. Two push rods 64 are spaced apart. The two push rods 64 are respectively inserted into two slide rails 51. The end of the push rod 64 away from the material box 6 passes through the slide rail 51 and the box body 5 and is located inside the box body 5 and is welded with a ball head 65. A first screw 12 is rotatably installed inside the box body 5. Two first screws 12 are spaced apart. Both first screws 12 are rotatably connected to the top of the box body 5 and are located below the two slide rails 51 respectively. A first motor 13 is installed at the end of the box body 5 away from the screening component 2. Two first motors 13 are spaced apart. The output shafts of the two first motors 13 are respectively connected to the ends of the two first screws 12 away from the screening component 2 via couplings. The ball head 65 connected to the feed box 6 of the screw 12 is embedded and slides in the spiral groove of the first screw 12 that is close to it. When the first screw 12 rotates, it can push the ball head 65 and the push rod 64 to move the feed box 6. The pitch of the spiral groove of the first screw 12 gradually decreases from the section located below the pressure plate 11 until it is close to the spectral detection component 3. The pitch of the spiral groove of the first screw 12 decreases to the point that the extrusion section 61 of one feed box 6 can be embedded in another feed box 6 that is close to its extrusion section 61. The pitch of the spiral groove of the first screw 12 located below the spectral detection component 3 and close to the first motor 13 gradually increases until it is the same as the pitch of the spiral groove of the first screw 12 away from the first motor 13.

[0041] Reference Figure 2 A second screw 14 is rotatably installed inside the housing 5. Two second screws 14 are spaced apart and are rotatably connected to the bottom of the housing 5, and are respectively located above two slide rails 51. A second motor 15 is installed at the end of the housing 5 away from the screening component 2. Two second motors 15 are spaced apart. The output shafts of the two second motors 15 are respectively connected to the ends of the two second screws 14 away from the screening component 2 through couplings. The ball head 65 connected to the material box 6 near the second screw 14 is embedded and slides in the spiral groove of the second screw 14.

[0042] Reference Figure 3 The screening assembly 2 includes a screen barrel 21, which is bolted to the support 1. The screen barrel 21 is located at one end of the support 1 and above the housing 5. A feed inlet is provided at the top of the screen barrel 21. A vibrator 22 is installed inside the screen barrel 21, and the vibrator 22 is arranged along the length of the screen barrel 21. An upper screen 23 and a lower screen 24 are bolted to the screen barrel 21. The diameter of the screen holes of the upper screen 23 is larger than that of the lower screen 24. One side of the upper screen 23 abuts against the top of the vibrator 22, and one side of the lower screen 24 abuts against the bottom of the vibrator 22. The sides of the upper screen 23 and the lower screen 24 away from the vibrator 22 abut against the inner wall of the screen barrel 21. The bottom of the screen barrel 21 faces the support. A discharge port is provided on one side of the midpoint in the length direction. The discharge port is located between the upper screen 23 and the lower screen 24. A discharge plate 25 is welded to a section of the lower screen 24 near the discharge port. The end of the discharge plate 25 away from the lower screen 24 extends through the discharge port and out of the screen barrel 21. The surfaces of the discharge plate 25 and the lower screen 24 are flush. The surfaces of the upper screen 23 and the lower screen 24 are parallel. A comb tooth 26 is hinged to the side of the discharge plate 25 away from the screen barrel 21. The end of the comb tooth 26 away from the discharge plate 25 abuts against the bottom of the material box 6. A first elastic element 27 is welded at the hinge point between the comb tooth 26 and the discharge plate 25. In this embodiment, the first elastic element 27 is a torsion spring. The end of the first elastic element 27 away from the comb tooth 26 is welded to the discharge plate 25.

[0043] When using this detection and analysis device, the first motor 13, vibrator 22 and spectral detection component 3 are started. The first motor 13 drives the first screw 12 to rotate. The first screw 12 pushes the ball head 65 in its spiral groove to slide along the length of the first screw 12, so as to push the material box 6 above the first screw 12 to move away from the screening component 2 along the slide rail 51. The pull plate 62 and the pull rod 63 can connect multiple material boxes 6 so as to realize that the first screw 12 drives the material box 6 on the slide rail 51 to move along the slide rail 51. The crushed coal sample is put into the sieve bucket 21. The vibrator 22 vibrates and drives the upper screen 23 and the lower screen 24 to screen the coal sample. The coal sample particles that meet the requirements fall along the lower screen 24 and the discharge plate 25 into the material box 6 below the discharge plate 25. One end of the comb tooth 26 is pushed against the material box 6 below the discharge plate 25 by the elastic force of the first elastic element 27. The vibration generated by the vibrator 22 can drive the comb tooth 26 to vibrate in the material box 6 containing the coal sample, which can stir the coal sample falling into the material box 6 evenly, which is conducive to the subsequent pressing of the coal sample. When the extrusion section 61 of the material box 6 passes under the comb tooth 26, it pushes the comb tooth 26 to rotate upward. After the extrusion section 61 of the material box 6 passes under the comb tooth 26, the first elastic element 27 can push the comb tooth 26 to reset, ensuring the stability of the comb tooth 26.

[0044] When the material box 6 passes under the pressure plate 11, the plate surface of the pressure plate 11 adheres to the top of the material box 6, which can seal the material box 6. One section of the plate surface of the pressure plate 11 bends, pushing the coal sample on the top of the material box 6 open and flattening the coal sample inside the material box 6, which is conducive to the subsequent pressing of the coal sample inside the material box 6.

[0045] When the material box 6 moves below the pressure plate 11, the pitch of the spiral groove of the first screw 12 below the material box 6 gradually decreases. The distance between the material box 6 and its adjacent material box 6 gradually decreases under the push of the ball head 65 and the push rod 64, so that the extrusion section 61 of the material box 6 is embedded in another material box 6 near the extrusion section 61. When the material box 6 moves to the end of the pressure plate 11 near the spectral detection component 3, the coal sample in the material box 6 is extruded into a coal sample for spectral detection, and then moves to the bottom of the spectral detection component 3 for spectral detection.

[0046] The coal sample that has completed spectral detection moves along the slide rail 51 above the first motor 13 with the material box 6. At the same time, the pitch of the spiral groove of the first screw 12 gradually increases, which makes it easier to take out the coal sample after detection, and to clean the material box 6 for the next use.

[0047] The pitch of the first screw 12 gradually decreases, causing two adjacent material boxes 6 to squeeze against each other, so as to compress the coal sample for coal sample testing. Multiple continuously arranged material boxes 6 move continuously on the slide rail 51, which facilitates continuous coal sample spectral analysis, reduces manual operation steps in the coal quality testing process, improves the safety of coal sample testing, facilitates the delivery of coal samples to the spectrometer for spectral analysis, reduces the need for manual intervention in coal quality testing, and improves coal sample testing efficiency.

[0048] Driven by the second motor 15, the second screw 14 rotates. When the hopper 6 moves below the second screw 14, the ball head 65 at one end of the push rod 64 connected to the hopper 6 is embedded in the spiral groove of the second screw 14. The rotation of the second screw 14 pushes the ball head 65 to drive the push rod 64 and the hopper 6 to slide on the slide rail 51. This allows the hopper 6, which passes below the second screw 14, to move smoothly along the slide rail 51. At the same time, it can assist the first screw 12 in pushing the hopper 6 to move on the slide rail 51, thereby improving the safety and stability of the hopper 6 when it moves on the slide rail 51.

[0049] The light shield 31 can reduce the interference of ambient light on the measurement results of the spectral detection component 3, improve the accuracy and operational stability of the measurement results, and extend the service life of the spectral detection component 3. The light shield 32 and the brush bristles 33 can assist the light shield 31 in reducing the interference of ambient light on the measurement results of the spectral detection component 3, and improve the accuracy and operational stability of the measurement results.

[0050] When the hopper 6 containing the tested coal sample moves to the side of the slide rail 51 near the collection box 4, the coal sample inside the hopper 6 falls into the collection box 4 as it moves along the slide rail 51 towards the bottom of the box 5. This process collects and stores the tested coal sample, reducing coal resource waste caused by coal quality testing. When the hopper 6 passes over the air pipe 41, the inclined air nozzles 42 on the air pipe 41 spray air onto the inner wall of the hopper 6 to blow off any coal sample adhering to the inner wall. This facilitates refilling the hopper 6 with coal samples for coal quality testing, makes cleaning the hopper 6 easier, reduces manual intervention requirements, and improves coal sample testing efficiency.

[0051] When the hopper 6 containing the coal sample passes under the rotating roller 71, the rotating roller 71 can rotate in contact with the top of the hopper 6, which can flatten the coal sample on the top of the hopper 6, making it easier for the coal sample in the hopper 6 to move to the pressure plate 11 for pressing, reducing the need for manual intervention in coal quality testing and improving the efficiency of coal sample testing.

[0052] This specific embodiment is merely an explanation of this application and is not intended to limit it. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of the claims of this application.

Claims

1. A laser-based intelligent coal quality detection and analysis device, characterized in that: The detection and analysis device includes a support (1), a screening component (2) is provided at one end of the support (1), a spectral detection component (3) is installed on the support (1), a box (5) is fixedly connected to the support (1), a slide rail (51) is fixedly connected to the box (5), the slide rail (51) is annular, a material box (6) is slidably arranged on the slide rail (51), multiple material boxes (6) are arranged sequentially along the slide rail (51), the top and one side wall of the material box (6) are open, the other end of the material box (6) is processed to form an extrusion section (61), the extrusion section (61) of one of the two adjacent material boxes (6) is embedded in the open part of the side wall of the adjacent material box (6), a pull plate (62) is rotatably connected to the material box (6), the pull plate (62) has a strip hole (621), the material box (6) A pull rod (63) is fixedly connected. The strip hole (621) of the pull plate (62) of one of the two adjacent material boxes (6) is fitted onto the pull rod (63) of the other material box (6), so that multiple material boxes (6) are connected in sequence. A push rod (64) is fixedly connected to the material box (6). One end of the push rod (64) is located inside the box body (5) and a ball head (65) is fixedly connected. A first motor (13) is installed inside the box body (5). The output shaft of the first motor (13) is connected to a first screw (12). The first screw (12) is rotatably connected to the top of the box body (5). The ball head (65) is embedded in the spiral groove of the first screw (12). The pitch of the spiral groove of the first screw (12) near the spectral detection component (3) gradually decreases. A pressure plate (11) is fixedly connected to the bracket (1). The screening component (2) includes a screen barrel (21), which is fixedly connected to the support (1). The screen barrel (21) has a feed inlet. A vibrator (22) is installed inside the screen barrel (21). An upper screen (23) and a lower screen (24) are fixedly connected inside the screen barrel (21). The screen hole diameter of the upper screen (23) is larger than that of the lower screen (24). The upper screen (23) is located above the lower screen (24). Both the upper screen (23) and the lower screen (24) abut against the vibrator (22). The screen barrel (21) has a discharge port. A discharge plate (25) is fixedly connected to the lower screen (24). One end of the discharge plate (25) extends out of the discharge port. A second motor (15) is installed inside the housing (5). The output shaft of the second motor (15) is connected to a second screw (14). The second screw (14) is rotatably connected to the bottom of the housing (5). The ball head (65) is embedded in the spiral groove of the second screw (14).

2. The laser intelligent coal quality detection and analysis device according to claim 1, characterized in that: One end of the discharge plate (25) is hinged with a comb tooth (26), and a first elastic element (27) is fixedly connected at the hinge point between the comb tooth (26) and the discharge plate (25). One end of the first elastic element (27) is fixedly connected to the discharge plate (25).

3. The laser intelligent coal quality detection and analysis device according to claim 1, characterized in that: A collection box (4) is provided at the bottom of the support (1).

4. The laser intelligent coal quality detection and analysis device according to claim 3, characterized in that: An air pipe (41) is installed on the top of the collection box (4), and an air nozzle (42) is installed on the air pipe (41).

5. The laser intelligent coal quality detection and analysis device according to claim 1, characterized in that: A rotating frame (7) is fixedly connected to the bracket (1), and a rotating roller (71) is installed on the rotating frame (7).

6. The laser intelligent coal quality detection and analysis device according to claim 5, characterized in that: One section of the pressure plate (11) is curved into an arc shape.

7. The laser intelligent coal quality detection and analysis device according to claim 6, characterized in that: A light shield (31) is fixedly attached to the bracket (1).

8. The laser intelligent coal quality detection and analysis device according to claim 7, characterized in that: A light-shielding plate (32) is fixedly connected inside the light-shielding cover (31). At least two light-shielding plates (32) are spaced apart, and brush bristles (33) are fixedly connected to the light-shielding plate (32).

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