An on-line coal quality detection system

Abstract

The present application relates to coal quality detection technical field, specifically to a kind of coal quality on-line detection system, including belt conveyor, the belt conveyor is arranged between two support rods one, and the belt conveyor top is equipped with support mechanism, and the support mechanism is equipped with coal quality detection device.The present application is equipped with belt conveyor and coal quality detection device, effectively solve the problem that the coal quality detection of traditional manual sampling, sample preparation and laboratory off-line analysis method is still used in prior art, this method cannot obtain coal quality characteristics in time, to cause the deviation of detection result to be larger, cannot reliably guide production problem.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of coal quality detection, in particular to a coal quality online detection system. BACKGROUND

[0002] Coal quality refers to the physical and chemical properties of coal and its suitability, and its main indicators include ash content, moisture content, sulfur content, calorific value, volatile matter, lump coal limit rate, gangue content, coking property, and cohesiveness, etc. The level of coal quality is related to the use effect and product quality of coal users, and also related to the reputation and economic benefits of coal enterprises, and even affects the development scale and level of the national economy.

[0003] In the prior art, the traditional manual sampling, sample preparation and laboratory offline analysis method is still used for coal quality detection. This method cannot obtain the coal quality characteristics in time, resulting in large deviation of the detection results and being unable to reliably guide production. Therefore, in view of the above status, it is urgent to develop a coal quality online detection system to overcome the deficiencies in the current actual application. SUMMARY

[0004] The present application aims to provide a coal quality online detection system to solve the problem of the prior art that the traditional manual sampling, sample preparation and laboratory offline analysis method is still used for coal quality detection, which cannot obtain the coal quality characteristics in time, resulting in large deviation of the detection results and being unable to reliably guide production.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a coal quality online detection system, comprising a belt conveying device, the belt conveying device is arranged between two support rods, and a support mechanism is arranged above the belt conveying device, and a coal quality detection device is arranged on the support mechanism.

[0006] Preferably, the support mechanism comprises a support plate and a plurality of support rods two, the support plate is fixedly installed with a plurality of support rods two on the bottom end of the periphery, the belt conveying device is located between the support rods two on the left and right sides, and the support rods two are located on the same horizontal plane as the support rods one.

[0007] The coal quality online detection system further comprises a controller, the controller is arranged on the support plate, the controller is electrically connected with the belt conveying device and the coal quality detection device, and the controller is further electrically connected with a display.

[0008] Preferably, the conveying direction of the belt conveying device is the front-back direction, and the coal quality detection device comprises:

[0009] The detection box is fixedly installed at the bottom end of the support plate, and cavities one and two are arranged in the detection box from left to right, and a cavity three is arranged at the bottom end of the cavity one, and the cavity two corresponds to the belt conveying device;

[0010] The top end of the rotating shaft one is rotatably connected to the inner wall of the cavity one, and the bottom end of the rotating shaft one penetrates the cavity three and is fixedly connected with the bevel gear one;

[0011] The bevel gear two is fixedly installed on the rotating shaft one arranged in the cavity one;

[0012] The left side of the threaded rod one penetrates the cavity one and is fixedly connected with the bevel gear three, the right end of the threaded rod one is rotatably connected to the right inner wall of the cavity two, and the bevel gear three is meshingly connected with the bevel gear two;

[0013] The fixed shaft is fixedly installed at the left and right ends of the inner wall of the cavity two;

[0014] The sliding block one is slidably connected to the fixed shaft, and the sliding block one is threadedly connected with the threaded rod one, and the bottom end of the sliding block one is fixedly installed with the coal quality detection equipment;

[0015] The driving mechanism is used for driving the rotating shaft one to rotate.

[0016] Preferably, the driving mechanism comprises:

[0017] The driving motor one is fixedly installed at the top end of the inner wall of the cavity three, and the output shaft of the driving motor one is fixedly installed with a threaded rod two;

[0018] The connecting block is threadedly connected with the threaded rod two, and the right side of the connecting block is slidably connected to the right end of the inner wall of the cavity three;

[0019] The driving motor two is fixedly installed at the fixed end of the connecting block, and the output end of the driving motor two is fixedly installed with a bevel gear four.

[0020] Preferably, the coal quality detection device further comprises a cleaning mechanism, and the cleaning mechanism comprises:

[0021] The left side of the threaded rod three is rotatably connected to the inner wall of the cavity three, and the right side of the threaded rod three penetrates the cavity three and is threadedly connected with the sleeve;

[0022] The left end of the push plate is fixedly installed on the sleeve;

[0023] The bevel gear five is fixedly installed on the threaded rod three arranged in the cavity three.

[0024] A feeding hopper is horizontally arranged at the right side of the belt conveyor, and the bottom end of the feeding hopper is fixedly connected with the collecting box.

[0025] Preferably, the front end of the coal quality detection device is further provided with a dust removal and cooling device, which comprises:

[0026] A first box body is fixedly installed at the bottom end of the supporting plate, and a water storage cavity is arranged in the first box body, wherein the left part of the bottom end of the water storage cavity is provided from top to bottom with a fourth cavity and a fifth cavity, the right part of the bottom end of the water storage cavity is provided from top to bottom with a sixth cavity and a seventh cavity, and the bottom end of the seventh cavity is open;

[0027] A bidirectional driving motor is fixedly installed on the inner wall of the bottom end of the fourth cavity, an output end at the top end of the bidirectional driving motor is fixedly installed with a gear one, and an output end at the bottom end of the bidirectional driving motor penetrates through the fifth cavity and is fixedly connected with a bevel gear six;

[0028] A third rotating shaft is rotatably connected to the inner wall of the fourth cavity at the upper and lower ends thereof, and a cam and a gear two are fixedly installed on the third rotating shaft from top to bottom, respectively, and the gear two is in meshing connection with the gear one;

[0029] A partition plate is slidably connected between the fourth cavity and the sixth cavity, and a through hole is arranged on the partition plate;

[0030] A connecting plate is slidably connected to the inner wall of the sixth cavity at the upper and lower ends thereof from left to right, and the left side of the top end of the connecting plate is fixedly connected with the partition plate;

[0031] A return spring is fixedly installed on the left end of the connecting plate and on the right side of the sixth cavity;

[0032] A fourth threaded rod is fixedly connected with a bevel gear seven at the left side thereof through the fifth cavity, and the right side of the fourth threaded rod is rotatably connected to the right end inner wall of the seventh cavity, and the bevel gear seven is in meshing connection with the bevel gear six;

[0033] A second sliding block is in threaded connection with the fourth threaded rod, and the top end of the second sliding block is slidably connected to the inner wall of the seventh cavity, and an adjusting mechanism is fixedly installed at the bottom end of the second sliding block.

[0034] Preferably, the adjusting mechanism comprises:

[0035] A concave rod is fixedly connected to the second sliding block at the top end thereof;

[0036] Electric telescopic rod, the electric telescopic rod fixed end is fixedly installed in the recessed rod bottom end groove, and the output end of the electric telescopic rod is fixedly installed on the adjusting plate;

[0037] The adjusting plate bottom end is fixedly installed with atomizing nozzle one, and the adjusting plate left and right ends are symmetrically provided with horizontal sliding holes, the horizontal sliding holes are slidably connected with slide rods, and the slide rods are rotatably connected with L-shaped rods;

[0038] The L-shaped rod bottom end is fixedly installed with atomizing nozzle two, and the L-shaped rod right-angle end is hinged with the recessed rod;

[0039] One end of the connecting pipe one is communicated with the water storage cavity, and the other end of the connecting pipe one is communicated with the atomizing nozzle one;

[0040] Two connecting pipes two, one end of the connecting pipe two is communicated with the water storage cavity, and the other end of the connecting pipe two is respectively communicated with two atomizing nozzles two.

[0041] Preferably, the dust removal and cooling device further comprises:

[0042] A dust concentration sensor and a temperature sensor are fixedly installed on the left and right end inner walls of the cavity seven respectively.

[0043] The technical scheme of the present application will be further described in detail below with the help of drawings and embodiments. DRAWINGS

[0044] Figure 1 It is a front view structural schematic diagram of the coal quality detection device of the present application;

[0045] Figure 2 It is a front view structural schematic diagram of the coal quality detection device of the present application; Figure 1

[0046] Figure 3 It is a front view structural schematic diagram of the coal quality detection device of the present application; Figure 1

[0047] Figure 4 It is a front view structural schematic diagram of the coal quality detection device of the present application; Figure 3

[0048] ​​​In the figure: 1, belt conveyor; 2, support rod one; 3, support plate; 4, support rod two; 5, detection box; 6, cavity one; 7, cavity two; 8, cavity three; 9, pivot one; 10, bevel gear one; 11, bevel gear two; 12, threaded rod one; 13, bevel gear three; 14, fixed shaft; 15, sliding block one; 16, drive motor one; 17, threaded rod two; 18, connecting block; 19, drive motor two; 20, bevel gear four; 21, threaded rod three; 22, sleeve; 23, push plate; 24, bevel gear five; 25, feed hopper; 26, collection box; 27, coal quality detection equipment; 28, box one; 29, water storage cavity; 30, cavity four; 31, cavity five; 32, cavity six; 33, cavity seven; 34, bidirectional drive motor; 35, gear one; 36, bevel gear six; 37, pivot three; 38, cam; 39, gear two; 40, partition plate; 41, through hole; 42, connecting plate; 43, return spring; 44, threaded rod four; 45, bevel gear seven; 46, sliding block two; 47, concave rod; 48, electric telescopic rod; 49, adjusting plate; 50, atomizing nozzle one; 51, L-shaped rod; 52, atomizing nozzle two; 53, connecting pipe one; 54, connecting pipe two; 55, dust concentration sensor; 56, temperature sensor; 57, horizontal sliding hole; 58, sliding rod. DETAILED DESCRIPTION

[0049] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. In addition, the terms "first", "second", "third", "upper", "lower", "left", "right" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance. Meanwhile, in the description of the present application, unless otherwise explicitly specified and limited, the terms "connected" and "connected" should be understood in a broad sense, for example, can be fixedly connected, can be detachably connected, or integrally connected; can be mechanically connected, or electrically connected; can be directly connected, or indirectly connected through an intermediate medium. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application. In addition, the technical solutions and technical features of each embodiment can be combined with each other, but it must be based on the fact that a person skilled in the art can realize it. When the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the scope of protection required by the present application.

[0050] Embodiment 1:

[0051] The structure of the coal quality online detection system provided by the present application is as follows: Figures 1-2As shown, including belt conveyor 1, the belt conveyor 1 is arranged between two support rods 1, and the belt conveyor 1 is provided with a support mechanism, and the support mechanism is provided with a coal quality detection device.

[0052] Optionally, the support mechanism comprises: a support plate 3 and a plurality of support rods 4, the support plate 3 is fixedly installed with a plurality of support rods 4 on the bottom end of the circumferential side, the belt conveyor 1 is located between the left and right support rods 4, and the support rods 4 and the support rods 2 are located on the same horizontal plane;

[0053] The coal quality online detection system further comprises a controller arranged on the support plate 3, the controller is electrically connected with the belt conveyor 1 and the coal quality detection device, and the controller is further electrically connected with a display.

[0054] Optionally, the conveying direction of the belt conveyor 1 is the front-back direction, and the coal quality detection device comprises:

[0055] A detection box 5 is fixedly installed at the bottom end of the support plate 3, and a cavity one 6 and a cavity two 7 are arranged in the detection box 5 from left to right, and a cavity three 8 is arranged at the bottom end of the cavity one 6, and the bottom end of the cavity two 7 corresponds to the belt conveyor 1;

[0056] A rotating shaft one 9 is rotatably connected to the inner wall of the cavity one 6 at the top end, and the bottom end of the rotating shaft one 9 penetrates the cavity three 8 and is fixedly connected with a bevel gear one 10;

[0057] A bevel gear two 11 is fixedly installed on the rotating shaft one 9 arranged in the cavity one 6;

[0058] A threaded rod one 12 is fixedly connected with a bevel gear three 13 at the left side penetrating the cavity one 6, and the right end of the threaded rod one 12 is rotatably connected to the right inner wall of the cavity two 7, and the bevel gear three 13 is meshingly connected with the bevel gear two 11;

[0059] A fixed shaft 14 is fixedly installed on the inner wall of the cavity two 7 at both ends;

[0060] A sliding block one 15 is slidably connected to the fixed shaft 14, and the sliding block one 15 is threadedly connected with the threaded rod one 12, and the bottom end of the sliding block one 15 is fixedly installed with a coal quality detection device 27 (the coal quality detection device 27 is an existing coal quality detection device / device, which can refer to the coal quality detection device in CN 204028099U coal quality detection device);

[0061] A driving mechanism is arranged to drive the rotating shaft 9 to rotate.

[0062] Optionally, the driving mechanism comprises:

[0063] A driving motor 16 is fixedly installed on the inner wall of the top end of the cavity 3, and the output shaft of the driving motor 16 is fixedly installed with a threaded rod 2;

[0064] A connecting block 18 is threadedly connected with the threaded rod 2, and the upper and lower sides of the right side of the connecting block 18 are slidingly connected with the inner wall of the right end of the cavity 3;

[0065] A driving motor 2 is fixedly installed at the fixed end of the connecting block 18, and the output end of the driving motor 2 is fixedly installed with a bevel gear 4.

[0066] Optionally, the coal quality detection device further comprises a cleaning mechanism, and the cleaning mechanism comprises:

[0067] A threaded rod 3 is rotationally connected with the inner wall of the cavity 3 at the left side, and the right side of the threaded rod 3 is threadedly connected with a sleeve 22 through the cavity 3;

[0068] A push plate 23 is fixedly installed on the sleeve 22 at the left end;

[0069] A bevel gear 5 is fixedly installed on the threaded rod 3 arranged in the cavity 3;

[0070] A feeding hopper 25 is horizontally arranged at the right side of the belt conveyor 1, and the bottom end of the feeding hopper 25 is fixedly connected with a collecting box 26.

[0071] The working principle of the technical scheme is as follows: when the coal quality needs to be detected, first, the belt conveying device 1 is started, the belt conveying device 1 drives the coal to move backward, then the driving motor one 16 is started, the driving motor one 16 rotates to drive the connecting block 18 to move upward until the bevel gear four 20 meshes with the bevel gear one 10, then the driving motor two 19 is started, the driving motor two 19 rotates to drive the bevel gear four 20 to rotate, the bevel gear four 20 rotates to drive the bevel gear one 10 meshed therewith to rotate, further driving the bevel gear two 11 fixedly installed on the rotating shaft one 9 to rotate, the bevel gear two 11 rotates to drive the bevel gear three 13 meshed therewith to move, by changing the rotating direction of the driving motor two 19, the left and right movement of the sliding block one 15 is realized, the sliding block one 15 moves left and right to drive the coal quality detection equipment 27 to move left and right, so that the coal on the belt conveying device 1 is detected in all directions.

[0072] When the coal quality detection equipment 27 detects that the coal quality does not meet the requirements, the controller controls the belt conveying device 1 to stop rotating, and controls the driving motor one 16 to reverse, so that the connecting block 18 moves downward, the connecting block 18 moves downward until the bevel gear four 20 meshes with the bevel gear five 24, then the driving motor two 19 is started, the driving motor two 19 drives the bevel gear four 20 and the bevel gear five 24 to rotate, the bevel gear five 24 drives the threaded rod three 21 to rotate, so that the sleeve 22 moves to the right, and the coal that does not meet the requirements is pushed to the feeding hopper 25 to the right, so as to be stored in the collecting box 26.

[0073] The beneficial effects of the above technical scheme are: by arranging the belt conveying device 1, the coal conveying is facilitated; by arranging the driving mechanism, the left and right movement of the coal quality detection equipment 27 is facilitated, so that the coal is detected in all directions, and the online detection of the coal quality is realized; by arranging the cleaning mechanism, the coal that does not meet the standard is cleaned by the movement of the sleeve 22 and the push plate 23. The present application solves the problem that the existing technology still uses the traditional manual sampling, sample preparation and laboratory offline analysis method for coal quality detection, which cannot obtain the coal quality characteristics in time, so that the detection result deviation is large, and the production cannot be reliably guided;

[0074] By arranging the driving motor one 16 and the connecting block 18, the up and down positions of the bevel gear four 20 are controlled, so that the left and right movement of the coal quality detection equipment 27 and the operation of the cleaning mechanism are realized respectively; by arranging the feeding hopper 25 and the collecting box 26, the coal that does not meet the standard is collected and treated.

[0075] Example 2:

[0076] On the basis of embodiment 1, as shown in Figures 3-4 The coal quality detection device front end is also provided with a dust removal and cooling device, and the dust removal and cooling device comprises:

[0077] A box body 28 is fixedly installed at the bottom end of the support plate 3, and a water storage cavity 29 is arranged in the box body 28. A cavity four 30 and a cavity five 31 are arranged from top to bottom at the left part of the bottom end of the water storage cavity 29. A cavity six 32 and a cavity seven 33 are arranged from top to bottom at the right part of the bottom end of the water storage cavity 29, and the bottom end of the cavity seven 33 is open.

[0078] A bidirectional driving motor 34 is fixedly installed on the inner wall at the bottom end of the cavity four 30. A gear one 35 is fixedly installed at the top end of the bidirectional driving motor 34. The output end at the bottom end of the bidirectional driving motor 34 penetrates the cavity five 31 and is fixedly connected with a bevel gear six 36.

[0079] A rotating shaft three 37 is rotatably connected to the inner wall of the cavity four 30 at the upper and lower ends thereof. A cam 38 and a gear two 39 are fixedly installed on the rotating shaft three 37 from top to bottom. The gear two 39 is in meshing connection with the gear one 35.

[0080] A partition plate 40 is slidably connected between the cavity four 30 and the cavity six 32. A through hole 41 is arranged on the partition plate 40.

[0081] A connecting plate 42 is slidably connected to the inner wall of the cavity six 32 at the upper and lower ends thereof. The left side of the top end of the connecting plate 42 is fixedly connected with the partition plate 40.

[0082] A reset spring 43 is fixedly installed on the left end of the connecting plate 42. The right side of the reset spring 43 is fixedly installed on the inner wall of the cavity six 32.

[0083] A threaded rod four 44 is fixedly connected with a bevel gear seven 45 at the left side thereof, and penetrates the cavity five 31. The right side of the threaded rod four 44 is rotatably connected to the right end inner wall of the cavity seven 33. The bevel gear seven 45 is in meshing connection with the bevel gear six 36.

[0084] A sliding block two 46 is in threaded connection with the threaded rod four 44. The top end of the sliding block two 46 is slidably connected to the inner wall of the cavity seven 33. An adjusting mechanism is fixedly installed at the bottom end of the sliding block two 46.

[0085] Optionally, the adjusting mechanism comprises:

[0086] A concave rod 47 is fixedly connected with the sliding block two 46 at the top end thereof.

[0087] An electric telescopic rod 48 is fixedly installed in the bottom end groove of the concave rod 47, and the output end of the electric telescopic rod 48 is fixedly installed on the adjusting plate 49;

[0088] The adjusting plate 49 is fixedly installed with an atomizing nozzle one 50 at the bottom end, and the adjusting plate 49 is symmetrically provided with horizontal sliding holes 57 at the left and right ends, the horizontal sliding holes 57 are slidably connected with sliding rods 58, and the sliding rods 58 are rotatably connected with L-shaped rods 51 (the atomizing nozzle is a nozzle product that can spray liquid in the form of atomization and uniformly suspend in the air by pressure);

[0089] The L-shaped rod 51 is fixedly installed with an atomizing nozzle two 52 at the bottom end, and the right angle end of the L-shaped rod 51 is hingedly connected with the concave rod 47;

[0090] A connecting pipe one 53 is in communication with the water storage cavity 29 at one end, and in communication with the atomizing nozzle one 50 at the other end;

[0091] Two connecting pipes two 54 are in communication with the water storage cavity 29 at one end, and in communication with two atomizing nozzles two 52 at the other end, respectively.

[0092] Optionally, the dust removal and cooling device further comprises:

[0093] A dust concentration sensor 55 and a temperature sensor 56 are fixedly installed on the inner walls of the left and right ends of the cavity seven 33, respectively (the dust concentration sensor 55 can refer to the dust concentration sensor body in the CN 216560177 U mine dust concentration sensor with automatic cleaning function).

[0094] The working principle of the above technical scheme is that when the dust concentration sensor 55 senses that the concentration of coal powder in the air around the belt conveying device 1 is too large, the bidirectional drive motor 34 is started by control, the bidirectional drive motor 34 rotates to drive the gear one 35 and the gear two 39 engaged with the gear one 35 to rotate, and further drives the coaxially fixed cam 38 to rotate, the cam 38 rotates to drive the partition plate 40 to move to the right, so that the through hole 41 is in communication with the water storage cavity 29, then the water in the water storage cavity 29 is sprayed from the atomizing nozzle one 50 and the atomizing nozzle two 52 through the connecting pipe one 53 and the connecting pipe two 54, and the coal dust in the air around the belt conveying device 1 is lowered to the ground by using water mist, and then the dust removal is completed by deposition and cleaning of the ground, so as to reduce the amount of coal dust flying;

[0095] The bidirectional driving motor 34 rotates the bevel gear six 36 and the bevel gear seven 45 engaged with the bevel gear six 36, the bevel gear seven 45 rotates to drive the sliding block two 46 to slide on the threaded rod four 44, by changing the forward and reverse rotation of the bidirectional driving motor 34, the left and right movement of the sliding block two 46 is realized, the electric telescopic rod 48 is started, the electric telescopic rod 48 moves downward, the adjusting plate 49 moves downward, the adjusting plate 49 moves downward, the top right end of the L-shaped rod 51 hinged on the concave rod 47 moves downward, at the same time, the sliding rod 58 moves in the horizontal sliding hole 57, so that the bottom end of the L-shaped rod 51 changes direction, thereby dusting the coal powder in the air around the belt conveyor 1;

[0096] When the temperature sensor 56 senses that the temperature inside the coal seam is too large, the above operation is repeated, thereby cooling the surrounding air, thereby increasing the humidity of the air around the coal on the belt conveyor 1, reducing the temperature around the belt conveyor 1, thereby preventing the coal from self-igniting.

[0097] The beneficial effects of the above technical solution are: by setting the water storage cavity 29, it is beneficial to realize the storage of water; by setting the cam 38 and the return spring 43, it is beneficial to realize the left and right movement of the partition plate 40, thereby controlling the flow of liquid in the water storage cavity 29, thereby reducing the use of water, realizing the environmental protection concept of saving water; by setting the bidirectional driving motor 34, it is beneficial to realize bidirectional control, and reduces the frequency of motor vibration, thereby preventing the motor vibration frequency from being too large, causing damage or loosening of other parts in the dust removal and cooling device; by forward and reverse rotation of the bidirectional driving motor 34, it is beneficial to realize the left and right movement of the adjusting mechanism, realizing all-round dust removal and cooling of the coal powder on the belt conveyor 1; by setting the electric telescopic rod 48, the electric telescopic rod 48 is stretched and contracted, thereby controlling the angle adjustment of the atomizing nozzle one 50 and the atomizing nozzle two 52 hinged on the concave rod 47; by setting the dust concentration sensor 55, it is beneficial to detect the concentration of coal powder in the surrounding air, thereby controlling the operation of the device; in order to prevent self-ignition during coal transportation, by setting the temperature sensor 56, it is beneficial to detect the temperature of the coal itself during transportation, thereby controlling the operation of the device, cooling the coal, which is very convenient and practical.

[0098] It will be apparent to those skilled in the art that the application is not limited to the details of the above-exemplified embodiments and that the present application can be implemented in other particular forms without departing from the spirit or essential characteristics of the present application. The embodiments should therefore be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the above description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. No reference signs in the claims should be considered as limiting the scope of the claims with respect to the figures of the patent document.

Claims

1. An on-line coal quality detection system, characterized in that, Including belt conveyor (1), belt conveyor (1) is arranged between two support rods (2), and the support mechanism is arranged above the belt conveyor (1), and the support mechanism is provided with coal quality detection device; The support mechanism comprises a support plate (3) and a plurality of support rods (4), the support plate (3) is fixedly installed with a plurality of support rods (4) on the bottom end of the circumferential side, the belt conveyor (1) is located between the left and right support rods (4), and the support rods (4) are located on the same horizontal plane as the support rods (1); the coal quality online detection system further comprises a controller, the controller is arranged on the support plate (3), the controller is electrically connected with the belt conveyor (1) and the coal quality detection device, and the controller is further electrically connected with a display; The front end of the coal quality detection device is further provided with a dust removal and cooling device, and the dust removal and cooling device comprises: The box body one (28) is fixedly installed on the bottom end of the support plate (3), and the water storage cavity (29) is arranged in the box body one (28); the cavity four (30) and the cavity five (31) are arranged from top to bottom on the left part of the bottom end of the water storage cavity (29); the cavity six (32) and the cavity seven (33) are arranged from top to bottom on the right part of the bottom end of the water storage cavity (29); the bottom end of the cavity seven (33) is open; The bidirectional drive motor (34) is fixedly installed on the inner wall of the bottom end of the cavity four (30), the output end of the top end of the bidirectional drive motor (34) is fixedly installed with a gear one (35), and the output end of the bottom end of the bidirectional drive motor (34) penetrates the cavity five (31) and is fixedly connected with a bevel gear six (36); The rotating shaft three (37) is rotatably connected to the inner wall of the cavity four (30) at the upper and lower ends, and the rotating shaft three (37) is fixedly installed with a cam (38) and a gear two (39) from top to bottom; the gear two (39) is meshed with the gear one (35); The partition plate (40) is slidably connected between the cavity four (30) and the cavity six (32), and the partition plate (40) is provided with a through hole (41); The connecting plate (42) is slidably connected to the inner wall of the cavity six (32) at the upper and lower ends, and the left side of the top end of the connecting plate (42) is fixedly connected with the partition plate (40); The reset spring (43) is fixedly installed on the left end of the connecting plate (42), and the right side of the reset spring (43) is fixedly installed on the inner wall of the cavity six (32); The threaded rod four (44) is fixedly connected with a bevel gear seven (45) through the cavity five (31) on the left side, and the threaded rod four (44) is rotatably connected to the right end inner wall of the cavity seven (33) on the right side; the bevel gear seven (45) is meshed with the bevel gear six (36). The slider two (46) is in threaded connection with the threaded rod four (44), and the top end of the slider two (46) is in sliding connection with the inner wall of the cavity seven (33), and the bottom end of the slider two (46) is fixedly installed with an adjusting mechanism; The adjusting mechanism comprises a concave rod (47), and the top end of the concave rod (47) is fixedly connected with the slider two (46); An electric telescopic rod (48) is fixedly installed at the fixed end of the concave rod (47), and the output end of the electric telescopic rod (48) is fixedly installed on an adjusting plate (49); The bottom end of the adjusting plate (49) is fixedly installed with an atomizing nozzle one (50), and the left and right ends of the adjusting plate (49) are symmetrically provided with horizontal sliding holes (57), and the horizontal sliding holes (57) are slidably connected with sliding rods (58), and the sliding rods (58) are rotatably connected with L-shaped rods (51); The bottom end of the L-shaped rod (51) is fixedly installed with an atomizing nozzle two (52), and the right angle end of the L-shaped rod (51) is hingedly connected with the concave rod (47); A connecting pipe one (53) is in communication with the water storage cavity (29) at one end, and the other end of the connecting pipe one (53) is in communication with the atomizing nozzle one (50); Two connecting pipes two (54) are in communication with the water storage cavity (29) at one end, and the other ends of the connecting pipes two (54) are respectively in communication with two atomizing nozzles two (52).

2. The coal quality on-line detection system according to claim 1, characterized in that, The conveying direction of the belt conveying device (1) is the front-back direction, and the coal quality detection device comprises: A detection box (5) is fixedly installed at the bottom end of the supporting plate (3), and a cavity one (6) and a cavity two (7) are respectively arranged in the detection box (5) from left to right, and a cavity three (8) is arranged at the bottom end of the cavity one (6), and the cavity two (7) corresponds to the belt conveying device (1); A rotating shaft one (9) is rotatably connected to the inner wall of the cavity one (6) at the top end, and the bottom end of the rotating shaft one (9) penetrates the cavity three (8) and is fixedly connected with a bevel gear one (10); A bevel gear two (11) is fixedly installed on the rotating shaft one (9) arranged in the cavity one (6); A threaded rod one (12) is fixedly connected with a bevel gear three (13) penetrating the cavity one (6) at the left side, and the right end of the threaded rod one (12) is rotatably connected to the right inner wall of the cavity two (7), and the bevel gear three (13) is in meshing connection with the bevel gear two (11); Fixed shafts (14) are fixedly installed on the inner walls of the cavity two (7) at the left and right ends; A slider one (15) is slidably connected to the fixed shaft (14), and the slider one (15) is in threaded connection with the threaded rod one (12), and the bottom end of the slider one (15) is fixedly installed with a coal quality detection device (27); A driving mechanism is used for driving the rotating shaft one (9) to rotate.

3. The coal quality on-line detection system according to claim 2, characterized in that, The driving mechanism comprises: A drive motor one (16) is fixedly installed on the inner wall of the top end of the cavity three (8), and the output shaft of the drive motor one (16) is fixedly installed with a threaded rod two (17); A connecting block (18) is in threaded connection with the threaded rod two (17), and the upper and lower sides of the right side of the connecting block (18) are in sliding connection with the inner wall of the right end of the cavity three (8); A drive motor two (19) is fixedly installed at the fixed end in the connecting block (18), and the output end of the drive motor two (19) is fixedly installed with a bevel gear four (20).

4. The coal quality on-line detection system according to claim 3, characterized in that, The coal quality detection device further comprises a cleaning mechanism, and the cleaning mechanism comprises: A threaded rod three (21) is rotatably connected to the inner wall of the cavity three (8) on the left side, and the right side of the threaded rod three (21) penetrates the cavity three (8) and is in threaded connection with a sleeve (22); A push plate (23) is fixedly installed on the left end of the sleeve (22); A bevel gear five (24) is fixedly installed on the threaded rod three (21) arranged in the cavity three (8); An inlet hopper (25) is horizontally arranged on the right side of the belt conveyor (1), and the bottom end of the inlet hopper (25) is fixedly connected with a collection box (26).

5. The coal quality on-line detection system according to claim 1, characterized in that, The dust removal and cooling device further comprises: A dust concentration sensor (55) and a temperature sensor (56) are respectively fixedly installed on the inner walls of the left and right ends of the cavity seven (33).

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