Anti-blocking detection device for coal drop pipe

Abstract

The invention provides an anti-blocking detection device for a coal drop pipe, and relates to the technical field of coal conveying equipment of thermal power generation boilers, the anti-blocking detection device comprises a coal drop pipe, a detection box is arranged on the peripheral side of the coal drop pipe, and an anti-blocking detector is arranged in the detection box. The anti-blocking detector is arranged on the peripheral side of the coal drop pipe, and whether the coal drop pipe is blocked or not is judged by detecting the strength difference of received signals under the action of the microwave transmitting end and the microwave receiving end on the anti-blocking detector. Therefore, the technical problems that in the prior art, the efficiency is low and the cost is high due to the fact that the blocking problem is mainly manually checked and manually processed are effectively solved.

Description

Technical Field

[0001] The invention relates to the technical field of coal conveying equipment for thermal power generation boilers, and in particular to an anti-blocking detection device for a coal drop pipe. Background Art

[0002] In coal plants, ports, coal transfer yards, coal washing plants, and thermal power plants, coal drop pipes are important equipment for coal transportation. However, due to the large amount of coal, high humidity and viscosity of coal, the coal drop pipes are prone to blockage, which seriously affects the normal operation of the coal feeding system.

[0003] In the prior art, the blockage problem is mainly solved manually by manual inspection, which is inefficient and costly. Therefore, in view of the above situation, it is urgent to develop an anti-blockage detection device for a coal drop pipe to overcome the shortcomings in current practical applications. Summary of the invention

[0004] The present invention provides an anti-blocking detection device for a coal drop pipe, which is used to solve the technical problem raised by the above background technology: in the prior art, the blockage problem is mainly handled manually through manual inspection, which is inefficient and costly.

[0005] In order to solve the above technical problems, the present invention discloses an anti-blocking detection device for a coal drop pipe, comprising: a coal drop pipe, a detection box is arranged around the coal drop pipe, and an anti-blocking detector is arranged in the detection box.

[0006] Preferably, the detection box is fixedly mounted on the coal drop pipe, and the anti-blocking detector includes: a microwave transmitting end, which is fixedly mounted on the inner wall of one side of the detection box, and the microwave transmitting end is connected to the coal drop pipe, and the other side of the coal drop pipe is connected to the microwave receiving end, and the microwave receiving end is fixedly mounted on the inner wall of the other side of the detection box.

[0007] Preferably, the microwave transmitting end and the microwave receiving end of the anti-blocking detector are located on the same horizontal line, and the anti-blocking detector is electrically connected to the PLC controller and the host computer.

[0008] Preferably, a coal processing box is also fixedly installed on the upper end of the detection box, and a coal crushing mechanism is arranged in the coal processing box, and the coal crushing mechanism comprises: a driving motor, the fixed end of the driving motor is fixedly installed on one end of the connecting rod, and the other end of the connecting rod is fixedly installed on the inner wall of the coal processing box, and the output end of the driving motor is fixedly installed with one end of the connecting rod two and one end of the connecting rod three, and the other end of the connecting rod two is fixedly connected to one end of the connecting rope, and the other end of the connecting rope passes through the pulley and is fixedly connected to the left end of the slider, one end of the short rod is movably connected to the pulley, and the other end of the short rod is fixedly installed Installed on the inner wall of the coal processing box, the slider is connected to the slide rail by sliding left and right, and the slide rail is fixedly installed on the inner wall of the coal processing box, one end of the return spring is fixedly installed on the short rod one, and the other end of the return spring one is fixedly installed on the left end of the slider, and the right end of the slider is fixedly installed with a rack one, the rack one is meshed with a gear one, and the rotating shaft of the gear one is connected to the electric telescopic rod, the fixed end of the electric telescopic rod is rotatably connected to the inner wall of the coal processing box, the output end of the electric telescopic rod passes through the coal drop pipe and is fixedly connected to a plurality of stirring rods, and the other end of the connecting rod three is connected to the coal drop pipe knocking mechanism.

[0009] Preferably, the coal drop pipe knocking mechanism comprises: a long rod, a short rod 2 is fixedly installed on the left end of the long rod, the short rod 2 is movably connected in a slide groove 1 provided in the connecting rod 3, a rack 2 is fixedly installed on the right end of the long rod, the rack 2 is meshingly connected with the gear 2, and the gear 2 is fixedly installed on the rotating shaft 1, one end of the rotating shaft 1 is rotatably connected to the inner wall of the coal block processing box, and the other end of the rotating shaft 1 is fixedly installed with a bevel gear 1, the bevel gear 1 is meshingly connected with the bevel gear 2, the bevel gear 2 is fixedly installed on the rotating shaft 2, both ends of the rotating shaft 2 are rotatably connected to the support rod, the support rod is fixedly installed on the connecting plate, the connecting plate is fixedly connected to one end of the two groups of partitions, the other end of the partition is fixedly installed on the inner wall of the coal block processing box, and a number of knocking components are fixedly installed on the rotating shaft 2.

[0010] Preferably, the striking assembly includes: a rotating rod, which is fixedly mounted on a rotating shaft 2, and one end of the rotating rod is connected to the striking block through a plurality of sliding rods, one end of a reset spring 2 is fixedly mounted on an inner wall of a cavity provided in the rotating rod, and the other end of the reset spring 2 is fixedly mounted on the striking block.

[0011] Preferably, a coal ash dust reduction mechanism is also provided inside the coal block processing box, and the coal ash dust reduction mechanism includes: a pressurizing box, the pressurizing box is fixedly installed on the inner wall of the right end of the coal block processing box, and a liquid storage tank is fixedly installed at the rear end of the pressurizing box, the liquid storage tank is connected to the pressurizing box through a connecting pipe 1, and an electromagnetic valve is fixedly installed in the connecting pipe 1, a contact control switch is fixedly installed on the left end of the liquid storage tank, and the contact control switch is electrically connected to the electromagnetic valve, the trapezoidal block is slidably connected to the inner wall of the pressurizing box front and back, and the ladder block is connected to the inner wall of the pressurizing box front and back. The inclined surface of the trapezoidal block is set to be higher on the left and lower on the right. The left end of the trapezoidal block contacts the rack two. One end of the return spring three is fixedly installed on the trapezoidal block, and the other end of the return spring three is fixedly installed on the inner wall of the pressurizing box. One end of the connecting rod four is fixedly installed on the trapezoidal block, and the other end of the connecting rod four is fixedly installed with a piston. The piston is connected to the inner wall of the pressurizing box by sliding back and forth. One end of the connecting pipe two is connected to the inside of the coal dropping pipe through a number of nozzles, and the other end of the connecting pipe two is connected to the rear end of the pressurizing box, and a reverse flow valve is fixedly installed in the connecting pipe two. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0013] Figure 1 A front view of the structure provided by an embodiment of the present invention;

[0014] Figure 2 The embodiment of the present invention provides Figure 1 Top view of the medium coal block processing box structure;

[0015] Figure 3 The embodiment of the present invention provides Figure 2 Schematic diagram of the enlarged structure of point A.

[0016] Reference numerals:

[0017] 1. Coal drop pipe; 2. Detection box; 3. Microwave transmitting end; 4. Microwave receiving end; 5. Coal block processing box; 6. Driving motor; 7. Connecting rod 1; 8. Connecting rod 2; 9. Connecting rod 3; 10. Connecting rope; 11. Pulley; 12. Sliding block; 13. Short rod 1; 14. Slide rail; 15. Reset spring 1; 16. Rack 1; 17. Gear 1; 18. Electric telescopic rod; 19. Stirring rod; 20. Long rod; 21. Short rod 2; 22. Rack 2; 23. Gear 2; 24. Rotating shaft 1; 25. Cone Gear 1; 26. Bevel gear 2; 27. Rotating shaft 2; 28. Support rod; 29. ​​Connecting plate; 30. Partition; 31. Rotating rod; 32. Beating block; 33. Sliding rod; 34. Reset spring 2; 35. Cavity 1; 36. Slide 1; 37. Pressurizing box; 38. Liquid storage tank; 39. Connecting pipe 1; 40. Solenoid valve; 41. Contact control switch; 42. Trapezoidal block; 43. Reset spring 3; 44. Connecting rod 4; 45. Piston; 46. Connecting pipe 2; 47. Nozzle; 48. Reverse flow valve. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes, and do not specifically refer to the order or sequence, nor are they used to limit the present invention. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions and technical features between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0020] The present invention provides the following embodiments

[0021] Example 1

[0022] The embodiment of the present invention provides a device for detecting and preventing blocking of a coal drop pipe, such as Figure 1As shown, a blocking prevention detection device for a coal drop pipe comprises: a coal drop pipe 1, a detection box 2 is arranged around the coal drop pipe 1, and an blocking prevention detector is arranged in the detection box 2.

[0023] The beneficial effect of the above technical solution is that the present invention sets an anti-blocking detector on the side of the coal drop pipe 1, and through the microwave transmitting end 3 and the microwave receiving end 4 on the anti-blocking detector, it can be judged whether the coal drop pipe is blocked by detecting the difference in the strength of the received signal. This effectively improves the technical problem proposed by the background technology: in the prior art, the blockage problem is mainly handled manually by manual inspection, which is inefficient and costly.

[0024] Example 2

[0025] On the basis of Example 1, Figure 1 As shown, the detection box 2 is fixedly installed on the coal drop pipe 1, and the anti-blocking detector includes: a microwave transmitting end 3, which is fixedly installed on the inner wall of one side of the detection box 2, and the microwave transmitting end 3 is connected with the coal drop pipe 1, and the other side of the coal drop pipe 1 is connected with the microwave receiving end 4, and the microwave receiving end 4 is fixedly installed on the inner wall of the other side of the detection box 2.

[0026] Optionally, the microwave transmitting end 3 and the microwave receiving end 4 of the anti-blocking detector are located on the same horizontal line, and the anti-blocking detector is electrically connected to the PLC controller and the host computer.

[0027] The working principle and beneficial effects of the above technical scheme are as follows: the anti-blocking detector uses microwaves as a detection method, the microwave transmitting end 3 sends microwave signals, and the microwave receiving end 4 receives microwave signals. By detecting the difference in the strength of the received signal, it is determined whether the coal drop pipe 1 is blocked. When blockage occurs in the coal drop pipe 1, the anti-blocking detector of the coal drop pipe 1 can promptly send an electrical signal to the PLC controller, and then send a signal to the host computer through the PLC controller. The monitoring personnel can take measures in time according to the signal to prevent the material from blocking the coal drop pipe and causing a serious accident (working principle: using the microwave Doppler principle, when the medium passes through (approaching, passing, and moving away from) the microwave source, the frequency of the transmitted wave changes to reflect the change in the concentration of the medium in the pipeline. The concentration of the detected medium is directly proportional to the amplitude difference (the amplitude difference between the transmitted wave and the reflected wave). The larger the amplitude difference, the higher the medium concentration). The present invention can effectively avoid the risk of a large amount of coal blockage in the coal drop pipe 1 by setting an anti-blocking detector, so that the equipment can be stopped in time, reducing the difficulty of clearing the blocked coal, which is very convenient and practical.

[0028] Example 3

[0029] On the basis of Example 1-2, Figure 2-3As shown, a blocking prevention detection device for a coal drop pipe, a coal block processing box 5 is also fixedly installed on the upper end of the detection box 2, a coal block processing box 5 is arranged in the coal block processing box 5, and the coal block crushing mechanism comprises: a driving motor 6, the fixed end of the driving motor 6 is fixedly installed on one end of a connecting rod 7, and the other end of the connecting rod 7 is fixedly installed on the inner wall of the coal block processing box 5, and the output end of the driving motor is fixedly installed with one end of a connecting rod 2 8 and a connecting rod 3 9, and the other end of the connecting rod 2 8 is fixedly connected to one end of a connecting rope 10, and the other end of the connecting rope 10 passes through a pulley 11 and is fixedly connected to the left end of a slider 12, one end of a short rod 13 is movably connected to the pulley 11, and the other end of the short rod 13 is fixed It is installed on the inner wall of the coal block processing box 5, the slider 12 is slidably connected to the slide rail 14, and the slide rail 14 is fixedly installed on the inner wall of the coal block processing box 5, one end of the return spring 15 is fixedly installed on the short rod 13, and the other end of the return spring 15 is fixedly installed on the left end of the slider 12, and a rack 16 is fixedly installed on the right end of the slider 12, the rack 16 is meshed with the gear 17, and the rotating shaft of the gear 17 is connected to the electric telescopic rod 18, the fixed end of the electric telescopic rod 18 is rotatably connected to the inner wall of the coal block processing box 5, the output end of the electric telescopic rod 18 passes through the coal drop pipe 1 and is fixedly connected to a plurality of stirring rods 19, and the other end of the connecting rod three 9 is connected to the coal drop pipe knocking mechanism.

[0030] Optionally, the coal drop pipe knocking mechanism includes: a long rod 20, a short rod 21 is fixedly installed on the left end of the long rod 20, and the short rod 21 is movably connected in a slide groove 36 provided in the connecting rod 3 9, and a rack 22 is fixedly installed on the right end of the long rod 20, and the rack 22 is meshed and connected with the gear 23, and the gear 23 is fixedly installed on the rotating shaft 1 24, and one end of the rotating shaft 1 24 is rotatably connected to the inner wall of the coal block processing box 5, and the rotating shaft 1 24 is also rotatably connected to the inner wall of the coal block processing box 5. A bevel gear 25 is fixedly installed at one end, and the bevel gear 25 is meshed with a bevel gear 26. The bevel gear 26 is fixedly installed on a rotating shaft 27. Both ends of the rotating shaft 27 are rotatably connected to a support rod 28. The support rod 28 is fixedly installed on a connecting plate 29. The connecting plate 29 is fixedly connected to one end of two groups of partitions 30. The other end of the partition 30 is fixedly installed on the inner wall of the coal block processing box 5, and a plurality of knocking components are fixedly installed on the rotating shaft 27.

[0031] Optionally, the striking assembly includes: a rotating rod 31, the rotating rod 31 is fixedly mounted on the rotating shaft 27, and one end of the rotating rod 31 is connected to the striking block 32 through a plurality of sliding rods 33, one end of the reset spring 2 34 is fixedly mounted on the inner wall of the cavity 1 35 provided on the rotating rod 31, and the other end of the reset spring 2 34 is fixedly mounted on the striking block 32.

[0032] Optionally, a coal ash dust reduction mechanism is also provided inside the coal block processing box 5, and the coal ash dust reduction mechanism includes: a pressurizing box 37, the pressurizing box 37 is fixedly installed on the inner wall of the right end of the coal block processing box 5, and a liquid storage tank 38 is fixedly installed at the rear end of the pressurizing box 37, the liquid storage tank 38 is connected to the pressurizing box 37 through a connecting pipe 39, and an electromagnetic valve 40 is fixedly installed in the connecting pipe 39, a contact control switch 41 is fixedly installed on the left end of the liquid storage tank 38, and the contact control switch 41 is electrically connected to the electromagnetic valve 40, a trapezoidal block 42 is slidably connected to the inner wall of the pressurizing box 37 front and back, and the trapezoidal block 42 The inclined surface is set higher on the left and lower on the right. The left end of the trapezoidal block 42 contacts the rack 22. One end of the return spring 3 43 is fixedly mounted on the trapezoidal block 42, and the other end of the return spring 3 43 is fixedly mounted on the inner wall of the pressurizing box 37. One end of the connecting rod 4 44 is fixedly mounted on the trapezoidal block 42, and the other end of the connecting rod 4 44 is fixedly mounted with a piston 45. The piston 45 is connected to the inner wall of the pressurizing box 37 by sliding back and forth. One end of the connecting pipe 2 46 is connected to the inside of the coal dropping pipe 1 through a plurality of nozzles 47, and the other end of the connecting pipe 2 46 is connected to the rear end of the pressurizing box 37, and a reverse flow valve 48 is fixedly mounted in the connecting pipe 2 46.

[0033] The working principle of the above technical solution is as follows: when the anti-blocking detector detects that the inside of the coal drop pipe 1 is blocked, the driving motor 6 is first started (the driving motor 6 is a forward and reverse motor). When the driving motor 6 rotates clockwise, it drives the connecting rod 2 8 fixedly connected to its output shaft to rotate. The connecting rod 2 8 rotates and drives the connecting rope 10 fixedly connected to it. Under the action of the reset spring 15, the slider 12 moves to the right. The movement of the slider 12 drives the rack 16 fixed to it to move to the right. The movement of the rack 16 drives the gear 17 to rotate. The rotation of the gear 17 drives the electric telescopic rod 18 and the stirring rod 19 fixedly connected to it to rotate, thereby crushing the coal blocks in the coal drop pipe 1. At the same time, the extension amount of the electric telescopic rod 18 can be adjusted, and the coal blocks at different positions can be effectively crushed.

[0034] At the same time, when the driving motor 6 rotates, it will drive the connecting rod 3 9 to rotate accordingly. The rotation of the connecting rod 3 9 drives the short rod 21 to move in the slide groove 1 36, and then drives the long rod 20 to move to the left, thereby driving the long rod 20 and the rack 2 22 to move accordingly. The movement of the rack 22 drives the gear 23 to rotate. The rotation of the gear 23 drives the rotating shaft 1 24 fixedly connected thereto to rotate accordingly. The rotation of the rotating shaft 1 24 drives the bevel gear 1 25 and the bevel gear 2 26 meshing with the bevel gear 1 25 to rotate accordingly. The rotation of the bevel gear 26 drives the rotating shaft 27 to rotate. The rotation of the rotating shaft 27 drives the rotating rod 31 to rotate. The rotating rod 31 rotates and drives the knocking block 32 to knock on the outer wall of the coal drop pipe 1, thereby effectively knocking the coal blocks attached to the inner wall of the coal drop pipe 1 to make them fall.

[0035] When the rack 16 moves to the right, it will contact the contact control switch 41, so that the contact control switch 41 is activated, thereby controlling the electromagnetic valve 40 to open, so that the water in the liquid storage tank 38 is transported to the pressurizing tank 37 through the connecting pipe 1 39. When the rack 16 moves to the left, it does not contact the contact control switch 41, thereby controlling the electromagnetic valve 40 to close, and the rack 22 moves to the right, driving the trapezoidal block 42 to move to the rear end. The movement of the trapezoidal block 42 drives the connecting rod 44 and the piston 45 fixedly connected to the connecting rod 44 to move backward, thereby the water in the pressurizing tank 37 is transported to the coal drop pipe 1 through the connecting pipe 2 46 and a plurality of nozzles 47 under the pressure, thereby reducing the coal ash in the coal drop pipe 1.

[0036] The beneficial effects of the above technical solution are as follows: by setting the driving motor 6, it is conducive to realizing the effective operation of the connecting rod 2 8 and the connecting rod 3 9, and further realizing the operation of the coal block crushing mechanism and the coal drop pipe knocking mechanism; by setting the rack 16 and the gear 17, it is conducive to realizing the crushing of the coal blocks in the coal drop pipe 1; by setting the electric telescopic rod 18, it is conducive to realizing the adjustment of the front and rear positions of the stirring rod 19 in the coal drop pipe 1, thereby realizing the crushing of the coal blocks at different positions in the coal drop pipe 1; by setting the coal drop pipe knocking mechanism, it is conducive to realizing the crushing of the coal blocks attached to the inner wall of the coal drop pipe 1 The coal blocks can be effectively knocked and cleaned; by setting the reset spring 15 and the reset spring 3 43, it is beneficial to realize the reset processing of the slider 12 and the trapezoidal block 42; by setting the piston 45, it is beneficial to spray the water in the pressurized box 37 onto the coal blocks through the connecting pipe 2 46 and the nozzle 47 through the pressurized effect, so as to prevent the generation of excessive coal dust gas particles during the crushing process; by setting the reverse flow valve 48, it is beneficial to prevent the liquid from flowing back; by setting the electromagnetic valve 40 and the contact control switch 41, it is beneficial to realize the control of the water in the liquid storage tank 38, which is very convenient and practical.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A device for detecting and preventing blocking of a coal drop pipe, characterized in that: include: A coal drop pipe (1), wherein a detection box (2) is arranged on the periphery of the coal drop pipe (1), and an anti-blocking detector is arranged in the detection box (2).

2. The anti-blocking detection device for a coal drop pipe according to claim 1, characterized in that The detection box (2) is fixedly mounted on the coal drop pipe (1), and the anti-blocking detector comprises: a microwave transmitting end (3), the microwave transmitting end (3) is fixedly mounted on the inner wall of one side of the detection box (2), and the microwave transmitting end (3) is connected to the coal drop pipe (1), and the other side of the coal drop pipe (1) is connected to the microwave receiving end (4), and the microwave receiving end (4) is fixedly mounted on the inner wall of the other side of the detection box (2).

3. The anti-blocking detection device for a coal drop pipe according to claim 2, characterized in that The microwave transmitting end (3) and the microwave receiving end (4) of the anti-blocking detector are located on the same horizontal line, and the anti-blocking detector is electrically connected to the PLC controller and the host computer.

4. The anti-blocking detection device for a coal drop pipe according to claim 1, characterized in that: A coal block processing box (5) is also fixedly mounted on the upper end of the detection box (2), and a coal block crushing mechanism is arranged in the coal block processing box (5), and the coal block crushing mechanism comprises: a driving motor (6), the fixed end of the driving motor (6) is fixedly mounted on one end of a connecting rod (7), and the other end of the connecting rod (7) is fixedly mounted on the inner wall of the coal block processing box (5), and the output end of the driving motor is fixedly mounted on one end of a connecting rod (8) and a connecting rod (9), and the other end of the connecting rod (8) is fixedly connected to one end of a connecting rope (10), and the other end of the connecting rope (10) passes through a pulley (11) and is fixedly connected to the left end of a slider (12), and one end of a short rod (13) is movably connected to the pulley (11), and the other end of the short rod (13) is fixedly mounted in the coal block processing box (5). The slide block (12) is connected to the slide rail (14) by sliding left and right, and the slide rail (14) is fixedly mounted on the inner wall of the coal block processing box (5), one end of a return spring (15) is fixedly mounted on a short rod (13), and the other end of the return spring (15) is fixedly mounted on the left end of the slide block (12), and a rack (16) is fixedly mounted on the right end of the slide block (12), the rack (16) is meshed with a gear (17), and the rotating shaft of the gear (17) is connected to an electric telescopic rod (18), the fixed end of the electric telescopic rod (18) is rotatably connected to the inner wall of the coal block processing box (5), the output end of the electric telescopic rod (18) passes through the coal drop pipe (1) and is fixedly connected to a plurality of stirring rods (19), and the other end of the connecting rod (9) is connected to a coal drop pipe knocking mechanism.

5. The anti-blocking detection device for a coal drop pipe according to claim 4, characterized in that: The coal drop pipe knocking mechanism comprises: a long rod (20), a short rod (21) is fixedly mounted on the left end of the long rod (20), the short rod (21) is movably connected in a slide groove (36) provided in a connecting rod (9), a rack (22) is fixedly mounted on the right end of the long rod (20), the rack (22) is meshingly connected with a gear (23), and the gear (23) is fixedly mounted on a rotating shaft (24), one end of the rotating shaft (24) is rotatably connected to the inner wall of the coal block processing box (5), and the other end of the rotating shaft (24) is rotatably connected to the inner wall of the coal block processing box (5). A bevel gear (25) is fixedly mounted on one end of the rotating shaft (27), the bevel gear (25) is meshed with a bevel gear (26), the bevel gear (26) is fixedly mounted on a rotating shaft (27), both ends of the rotating shaft (27) are rotatably connected to a support rod (28), the support rod (28) is fixedly mounted on a connecting plate (29), the connecting plate (29) is fixedly connected to one end of two groups of partitions (30), the other end of the partitions (30) is fixedly mounted on the inner wall of the coal block processing box (5), and a plurality of knocking components are fixedly mounted on the rotating shaft (27).

6. The anti-blocking detection device for a coal drop pipe according to claim 5, characterized in that: The knocking assembly comprises: a rotating rod (31), the rotating rod (31) is fixedly mounted on the second rotating shaft (27), and one end of the rotating rod (31) is plugged with the knocking block (32) through a plurality of sliding rods (33), one end of the second reset spring (34) is fixedly mounted on the inner wall of the first cavity (35) provided on the rotating rod (31), and the other end of the second reset spring (34) is fixedly mounted on the knocking block (32).

7. The anti-blocking detection device for a coal drop pipe according to claim 4, characterized in that: A coal ash dust reduction mechanism is also provided inside the coal block processing box (5), and the coal ash dust reduction mechanism comprises: a pressurizing box (37), the pressurizing box (37) is fixedly mounted on the inner wall of the right end of the coal block processing box (5), and a liquid storage box (38) is fixedly mounted at the rear end of the pressurizing box (37), the liquid storage box (38) is connected to the pressurizing box (37) through a connecting pipe (39), and an electromagnetic valve (40) is fixedly mounted inside the connecting pipe (39), a contact control switch (41) is fixedly mounted on the left end of the liquid storage box (38), and the contact control switch (41) is electrically connected to the electromagnetic valve (40), and a trapezoidal block (42) is slidably connected to the inner wall of the pressurizing box (37) in a forward and backward manner, and the inclined surface of the trapezoidal block (42) The left side is higher than the right side. The left end of the trapezoidal block (42) contacts the second rack (22). One end of the return spring (43) is fixedly mounted on the trapezoidal block (42). The other end of the return spring (43) is fixedly mounted on the inner wall of the pressurizing box (37). One end of the connecting rod (44) is fixedly mounted on the trapezoidal block (42). The other end of the connecting rod (44) is fixedly mounted on the inner wall of the pressurizing box (37). The piston (45) is slidably connected to the inner wall of the pressurizing box (37) in a forward and backward manner. One end of the connecting pipe (46) is connected to the inside of the coal dropping pipe (1) through a plurality of nozzles (47). The other end of the connecting pipe (46) is connected to the rear end of the pressurizing box (37). A reverse flow valve (48) is fixedly mounted in the connecting pipe (46).

Images