Raw coal bunker weighing monitoring device

Abstract

The invention discloses a raw coal bunker weighing monitoring device which comprises a supporting table, an aisle guardrail is fixedly installed on the top of the supporting table, a weighing monitoring mechanism is arranged on the top of the supporting table, a buffering feeding mechanism is arranged on the top of the supporting table, and a safety display mechanism is arranged on the top of the supporting table. The weighing monitoring mechanism comprises a first cross beam and a gathering junction box. Through the design of a half-bridge type quartz patch sensor, the half-bridge type quartz patch sensor is directly fastened on a supporting structure formed by a first cross beam, a second cross beam and a supporting oblique beam, linear change of the internal weight of the coal bunker is obtained by measuring deformation of the supporting structure, and therefore data of the material level of the coal bunker is accurately obtained. And the material level data can be transmitted to the half-bridge quartz patch sensor to be displayed for a user to observe, and meanwhile, the data can be uploaded, so that the user can conveniently monitor the material level data, the operation safety of the device is improved, and energy consumption management in a factory is facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of raw coal bunkers, and in particular to a raw coal bunker weighing monitoring device. Background Art

[0002] Raw coal refers to the product produced by coal mines without washing, screening and processing, but only after manual picking of gangue and debris. It includes natural coke and inferior coal, but does not include low calorific value coal such as stone coal, peat, oil shale, etc. Raw coal can be divided into three categories according to its origin: humic coal, saprophytic coal and humic saprophytic coal. According to its carbonization degree, it can be divided into peat, lignite, bituminous coal and anthracite. Raw coal bunker refers to the storage bunker for granular materials such as raw coal and coal slime in thermal power plants. It is mainly used to store and supply the fuel required by thermal power plants. Raw coal bunkers are usually designed as rectangular or center flow types for storing and transporting coal. Its working principle is to transport coal to the boiler of thermal power plants by gravity or mechanical devices.

[0003] The raw coal bunker is not designed with a separate weight measurement device. The coal quantity in each bunker is blind without a measurement device. The coal quantity in the raw coal bunker is manually checked by operators on the top of the bunker, which is prone to falling risks. The unit operation is relatively extensive, and the operators have a large workload and safety risks. The coal quantity is now mostly calculated by belt scales. The coal quantity information cannot be transmitted remotely, and the total coal consumption can only be calculated manually by reading the meter on site every day. To this end, we propose a raw coal bunker weighing monitoring device. Summary of the invention

[0004] The purpose of the present invention is to provide a raw coal bunker weighing monitoring device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a raw coal bunker weighing monitoring device, comprising a support platform, a aisle guardrail is fixedly installed on the top of the support platform, a weighing monitoring mechanism is arranged on the top of the support platform, a buffer feeding mechanism is arranged on the top of the support platform, and a safety display mechanism is arranged on the top of the support platform.

[0006] The weighing monitoring mechanism includes a No. 1 crossbeam and a summary junction box. The No. 1 crossbeam is fixedly installed on the top of the support platform. A No. 2 crossbeam is welded between the two adjacent sides of the No. 1 crossbeams. A supporting oblique beam is welded at the corner of the inner cavity formed by the No. 1 crossbeam and the No. 2 crossbeam. A half-bridge quartz patch sensor is fixedly installed on the top of the No. 2 crossbeam and the supporting oblique beam. A support block is fixedly installed on the top of the half-bridge quartz patch sensor located at the top of the No. 2 crossbeam. A coal bin is fixedly installed on the inner wall of the support block. The top of the half-bridge quartz patch sensor located at the top of the supporting oblique beam is fixedly connected to the bottom of the coal bin. A branch junction box is fixedly installed on the inner side of the No. 1 crossbeam, and the summary junction box is fixedly installed on the top of the support platform.

[0007] Preferably, the buffer feeding mechanism includes a support frame, the support frame is fixedly installed on the top of the support platform, a support ring is fixedly installed on the end of the support frame, an elastic member is fixedly installed on the top of the support ring, a sleeve ring is fixedly installed on the top of the elastic member, a limiting rod is slidably connected to the inner wall of the sleeve ring, and the limiting rod is fixedly installed on the top of the support ring.

[0008] Preferably, reinforcement blocks are fixedly mounted on the top and bottom of the sleeve ring, a buffer feed barrel is fixedly mounted on the inner wall of the sleeve ring, and the inner wall of the reinforcement block is fixedly connected to the outer wall of the buffer feed barrel.

[0009] Preferably, a protrusion block is fixedly installed on the inner wall of the buffer feed barrel, an air spring is fixedly installed on the top of the protrusion block, a connecting block is fixedly installed on the top of the air spring, a connecting rod is fixedly installed on the bottom of the connecting block, a protrusion cover is fixedly connected to the bottom of the connecting rod, and an annular guide plate located below the protrusion cover is fixedly installed on the inner wall of the buffer feed barrel.

[0010] Preferably, a base plate is fixedly mounted on the inner wall of the bottom of the buffer feed barrel, a feeding net is fixedly mounted on the inner wall of the base plate, a rotating block is rotatably connected to the center of the top of the base plate, a breaking rod is welded on the outer wall of the rotating block, a driving motor is fixedly mounted at the center of the bottom of the base plate, the output shaft of the driving motor is fixedly connected to the bottom of the rotating block, and a protective cover is fixedly mounted on the bottom of the base plate.

[0011] Preferably, thorns are welded on the outer wall of the breaking rod, and reinforcement strips are welded on the outer wall of the thorns.

[0012] Preferably, the safety display mechanism includes an internal threaded column, which is fixedly mounted on the top of the support platform, a threaded rod is threadedly connected to the inner wall of the internal threaded column, a lifting platform is fixedly mounted on the top of the threaded rod, and a rotating platform is rotatably connected to the top of the lifting platform.

[0013] Preferably, a protection frame is fixedly mounted on the top of the rotating table, a weighing display instrument is fixedly mounted on the inner wall of the protection frame, and an expansion cover is fixedly connected to the right side of the protection frame.

[0014] Preferably, a three-way pipe is fixedly connected to the right side of the extension cover, an ion blower is fixedly connected to the top of the three-way pipe, a static elimination frame is fixedly connected to the right side of the three-way pipe, and a metal sheet is fixedly installed on the inner wall of the static elimination frame.

[0015] Preferably, a wire is fixedly connected to the outer wall of the metal sheet, and one end of the wire away from the metal sheet is fixedly connected to the outer wall of beam No. 1, and one side of the metal sheet away from the wire is fixedly connected to a metal column located in the inner cavity of the static elimination frame, and a metal branch rod is fixedly connected to the outer surface of the metal column.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The present invention adopts the design of a half-bridge quartz patch sensor, which is directly fastened on the supporting structure formed by the No. 1 crossbeam, the No. 2 crossbeam and the supporting oblique beam. By measuring the deformation of the supporting structure, the linear change of the weight inside the coal bunker is obtained, so as to accurately obtain the data of the coal bunker material level, and the material level data can be transmitted to the half-bridge quartz patch sensor for display for user observation. At the same time, the data can be uploaded to facilitate users to monitor the material level data, improve the operating safety of the device, and facilitate energy consumption management inside the factory. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 It is a structural schematic diagram of the coal bunker of the present invention;

[0020] Figure 3 This is a schematic diagram of the distribution position structure of the half-bridge quartz patch sensor of the present invention;

[0021] Figure 4 It is a schematic diagram of the structure of the support ring and the sleeve ring of the present invention;

[0022] Figure 5 It is a schematic diagram of the cutaway structure of the buffer feed barrel of the present invention;

[0023] Figure 6 This is a schematic diagram of the bottom structure of the buffer feed barrel of the present invention;

[0024] Figure 7 It is a schematic diagram of a partially cut-off structure of a breaking rod of the present invention;

[0025] Figure 8 It is a structural schematic diagram of the safety display mechanism of the present invention;

[0026] Fig. 9 It is a schematic diagram of the side structure of the expansion cover of the present invention;

[0027] Fig.10 It is a schematic diagram of the cross-section structure of the static elimination frame of the present invention.

[0028] In the figure: 1. Support platform; 11. Aisle guardrail; 2. Weighing monitoring mechanism; 21. No. 1 crossbeam; 211. No. 2 crossbeam; 212. Supporting diagonal beam; 22. Coal bunker; 23. Support block; 24. Summary junction box; 25. Branch junction box; 26. Half-bridge quartz patch sensor; 3. Buffer feeding mechanism; 31. Support frame; 32. Support ring; 33. Elastic part; 34. Limit rod; 35. Socket ring; 36. Reinforcement block; 37. Buffer feeding barrel; 38. Annular guide plate; 381. Protruding block; 382. Air spring; 383. Connecting block; 384. Connecting Connecting rod; 385, raised cover; 39, bottom plate; 391, feeding net; 392, rotating block; 393, breaking rod; 3931, stab; 3932, reinforcement strip; 394, driving motor; 395, protective cover; 4, safety display mechanism; 41, internal thread column; 42, threaded rod; 43, lifting platform; 44, rotating platform; 45, protective frame; 46, weighing display instrument; 47, extension cover; 48, three-way pipe; 481, ion fan; 49, static elimination frame; 491, metal sheet; 492, wire; 493, metal column; 494, metal branch rod. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only 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.

[0030] See also Figure 1-Figure 10The present invention provides a technical solution: a raw coal bunker weighing monitoring device, comprising a support platform 1, a corridor guardrail 11 is fixedly installed on the top of the support platform 1, a weighing monitoring mechanism 2 is arranged on the top of the support platform 1, a buffer feeding mechanism 3 is arranged on the top of the support platform 1, a safety display mechanism 4 is arranged on the top of the support platform 1, the weighing monitoring mechanism 2 comprises a No. 1 crossbeam 21 and a summary junction box 24, the No. 1 crossbeam 21 is fixedly installed on the top of the support platform 1, a No. 2 crossbeam 211 is welded between the adjacent sides of the two No. 1 crossbeams 21, the No. 1 crossbeam 21 and the No. 2 crossbeam 2 A supporting inclined beam 212 is welded at the corner of the inner cavity formed by 11, and a half-bridge quartz patch sensor 26 is fixedly installed on the top of the second cross beam 211 and the supporting inclined beam 212. A supporting block 23 is fixedly installed on the top of the half-bridge quartz patch sensor 26 located at the top of the second cross beam 211, and a coal bunker 22 is fixedly installed on the inner wall of the supporting block 23. The top of the half-bridge quartz patch sensor 26 located at the top of the supporting inclined beam 212 is fixedly connected to the bottom of the coal bunker 22, and a branch junction box 25 is fixedly installed on the inner side of the first cross beam 21, and a summary junction box 24 is fixedly installed. It is fixedly installed on the top of the support platform 1. The design of the aisle guardrail 11 improves the safety of workers walking on the top of the support platform 1. The cooperation of the first crossbeam 21, the second crossbeam 211 and the supporting inclined beam 212 forms a support structure for the coal bunker 22. The half-bridge quartz patch sensor 26 obtains the linear change of the internal weight of the coal bunker 22 by measuring the deformation of the supporting structure, thereby accurately obtaining the data of the material level of the coal bunker 22, and the material level data can be transmitted to the half-bridge quartz patch sensor 26 for display for user observation. The half-bridge quartz patch sensor 26 Through the electrical signal connection between the branch junction box 25 and the summary junction box 24, the summary junction box 24 can amplify the weak signal output by the half-bridge quartz patch sensor 26 into a digital signal, and output at least one 4-20mA signal to the DCS system in a hard-wired manner. At the same time, it has an RS232 or MODBUS communication signal expansion port. The half-bridge quartz patch sensor 26 is installed at one quarter of the top of the supporting inclined beam 212, and the half-bridge quartz patch sensor 26 is installed at the midpoint of the opposite sides of the second cross beam 211 and the supporting inclined beam 212.

[0031] In the preferred technical solution of the present embodiment, the buffer feeding mechanism 3 includes a support frame 31, the support frame 31 is fixedly mounted on the top of the support platform 1, a support ring 32 is fixedly mounted on the end of the support frame 31, an elastic member 33 is fixedly mounted on the top of the support ring 32, a sleeve ring 35 is fixedly mounted on the top of the elastic member 33, a limit rod 34 is slidably connected to the inner wall of the sleeve ring 35, the limit rod 34 is fixedly mounted on the top of the support ring 32, a reinforcement block 36 is fixedly mounted on the top and bottom of the sleeve ring 35, a buffer feeding barrel 37 is fixedly mounted on the inner wall of the sleeve ring 35, the inner wall of the reinforcement block 36 is fixedly connected to the outer wall of the buffer feeding barrel 37, and the raw coal input into the coal bunker 22 will first First, it enters the inner cavity of the buffer feed barrel 37, and the raw coal falls and generates an impact force, which will be applied to the buffer feed barrel 37 as a whole. At this time, the sleeve ring 35 can slide vertically on the outer wall of the limit rod 34, and at the same time, the elastic member 33 is compressed. The elastic deformation generated by the elastic member 33 buffers the impact force, thereby preventing the impact force from directly acting on the coal bin 22, which may easily cause the half-bridge quartz patch sensor 26 to be overloaded and affect the service life of the half-bridge quartz patch sensor 26. Through the design of the reinforcement block 36, the stability of the connection between the sleeve ring 35 and the buffer feed barrel 37 is improved, and through the shape setting of the support frame 31, the support ring 32 as a whole can be stably supported by the support platform 1.

[0032] In the preferred technical solution of this embodiment, a raised block 381 is fixedly installed on the inner wall of the buffer feed barrel 37, an air spring 382 is fixedly installed on the top of the raised block 381, a connecting block 383 is fixedly installed on the top of the air spring 382, ​​a connecting rod 384 is fixedly installed on the bottom of the connecting block 383, a raised cover 385 is fixedly connected to the bottom of the connecting rod 384, an annular guide plate 38 located below the raised cover 385 is fixedly installed on the inner wall of the buffer feed barrel 37, and an air spring 382 is fixedly installed on the top of the air spring 382. A bottom plate 39, a feeding net 391 is fixedly installed on the inner wall of the bottom plate 39, a rotating block 392 is rotatably connected at the center of the top of the bottom plate 39, a breaking rod 393 is welded on the outer wall of the rotating block 392, a driving motor 394 is fixedly installed at the center of the bottom of the bottom plate 39, the output shaft of the driving motor 394 is fixedly connected to the bottom of the rotating block 392, a protective cover 395 is fixedly installed at the bottom of the bottom plate 39, a spur 3931 is welded on the outer wall of the breaking rod 393, and a reinforcing strip 3932 is welded on the outer wall of the spur 3931, Most of the raw coal entering the buffer feed barrel 37 will first contact the top of the raised cover 385, and the raised cover 385 will compress the air spring 382 through the connecting rod 384 and the connecting block 383, and the air spring 382 will produce elastic deformation to partially absorb the impact force and improve the buffering effect. Then, through the design of the annular guide plate 38, the raw coal entering the buffer feed barrel 37 can be fully guided to the crushing rod 393, and the driving motor 394 can be controlled to work, which can drive the rotating block 392 to rotate and promote the crushing The crushing rod 393 rotates to crush large pieces of raw coal, avoiding the problem that the lumps of raw coal easily cause blockage inside the coal bin 22. The design of the feeding net 391 can block large pieces of raw coal on the top of the bottom plate 39, which is convenient for the full crushing of large pieces of raw coal. The design of the protective cover 395 can protect the driving motor 394. The design of the spur 3931 can improve the crushing effect of the crushing rod 393 on the raw coal. The design of the reinforcement strip 3932 can improve the stability of the spur 3931.

[0033] In the preferred technical solution of the present embodiment, the safety display mechanism 4 includes an internal threaded column 41, which is fixedly mounted on the top of the support platform 1. A threaded rod 42 is threadedly connected to the inner wall of the internal threaded column 41. A lifting platform 43 is fixedly mounted on the top of the threaded rod 42. A rotating platform 44 is rotatably connected to the top of the lifting platform 43. A protective frame 45 is fixedly mounted on the top of the rotating platform 44. A weighing display instrument 46 is fixedly mounted on the inner wall of the protective frame 45. An expansion cover 47 is fixedly connected to the right side of the protective frame 45. Through the design of the weighing display instrument 46, the weight information of the coal bunker 22 can be displayed. The weighing display instrument 46 has a built-in filter that can identify and filter the impact of equipment vibration and provide accurate and reliable weight readings. Rotating the lifting platform 43 can cause the threaded rod 42 to rotate inside the internal threaded column 41, thereby adjusting the height of the weighing display instrument 46, so that users of different heights can read the weight information. Through the design of the rotating connection between the lifting platform 43 and the rotating platform 44, the angle of the rotating platform 44 can be manually locked while the lifting platform 43 rotates.

[0034] In the preferred technical solution of the present embodiment, a three-way pipe 48 is fixedly connected to the right side of the expansion cover 47, an ion blower 481 is fixedly connected to the top of the three-way pipe 48, and a static elimination frame 49 is fixedly connected to the right side of the three-way pipe 48. A metal sheet 491 is fixedly installed on the inner wall of the static elimination frame 49, and a wire 492 is fixedly connected to the outer wall of the metal sheet 491. The end of the wire 492 away from the metal sheet 491 is fixedly connected to the outer wall of the first beam 21, and the side of the metal sheet 491 away from the wire 492 is fixedly connected to a metal column 493 located in the inner cavity of the static elimination frame 49, and a metal branch rod 494 is fixedly connected to the outer surface of the metal column 493 to control the operation of the ion blower 481, so as to transport ionized air into the inner cavity of the three-way pipe 48. Some of the ionized air will pass through the expansion cover 47. The inner cavity of the exhibition cover 47 is in full contact with the outer surface of the weighing display instrument 46, which can eliminate the static electricity on the weighing display instrument 46 and perform heat dissipation protection treatment on the weighing display instrument 46. The other part of the ionized air will pass through the inner cavity of the static elimination frame 49, and the static electricity on the half-bridge quartz patch sensor 26 will be transferred to the No. 1 beam 21. Through the design of the wire 492, the static electricity on the No. 1 beam 21 can be transferred to the metal column 493 through the metal sheet 491. The ionized air will eliminate the static electricity on the metal column 493, thereby realizing the anti-static protection function of the half-bridge quartz patch sensor 26 and ensuring the smooth operation of the half-bridge quartz patch sensor 26. The design of the metal branch rod 494 can improve the contact effect between the air and the outer surface of the metal column 493.

[0035] Working principle: When in use, the raw coal is put into the inner cavity of the buffer feed barrel 37, and the sleeve ring 35 can slide on the outer wall of the limit rod 34 to compress the elastic part 33, so as to realize the function of buffering the impact force added by the raw coal, and the raw coal then falls into the bottom of the inner cavity of the buffer feed barrel 37, and the driving motor 394 is controlled to work, which can drive the breaking rod 393 to rotate and break the large pieces of raw coal. The raw coal will then pass through the discharge net 391 under the action of gravity and fall into the inner cavity of the coal bin 22 for storage. Through the cooperation of the No. 1 crossbeam 21, the No. 2 crossbeam 211 and the supporting inclined beam 212, a support structure for the coal bin 22 is formed. The semi-bridge quartz patch sensor 26 obtains the linear change of the internal weight of the coal bin 22 by measuring the deformation of the supporting structure, thereby accurately obtaining the data of the material level of the coal bin 22, and the material level data can be transmitted to the semi-bridge quartz patch sensor 26 for display.

[0036] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A raw coal bunker weighing monitoring device, comprising a support platform (1), characterized in that: A corridor guardrail (11) is fixedly installed on the top of the support platform (1), a weighing monitoring mechanism (2) is arranged on the top of the support platform (1), a buffer feeding mechanism (3) is arranged on the top of the support platform (1), and a safety display mechanism (4) is arranged on the top of the support platform (1); The weighing monitoring mechanism (2) comprises a first crossbeam (21) and a gathering junction box (24), wherein the first crossbeam (21) is fixedly mounted on the top of the support platform (1), a second crossbeam (211) is welded between two adjacent sides of the first crossbeams (21), a supporting oblique beam (212) is welded at the corner of the inner cavity formed by the first crossbeam (21) and the second crossbeam (211), and a half-bridge quartz patch sensor (26) is fixedly mounted on the top of the second crossbeam (211) and the supporting oblique beam (212). The top of the half-bridge quartz patch sensor (26) located at the top of the second crossbeam (211) is fixedly installed with a support block (23), and the inner wall of the support block (23) is fixedly installed with a coal bin (22). The top of the half-bridge quartz patch sensor (26) located at the top of the supporting inclined beam (212) is fixedly connected to the bottom of the coal bin (22). The inner side of the first crossbeam (21) is fixedly installed with a branch junction box (25), and the aggregation junction box (24) is fixedly installed on the top of the support platform (1).

2. A raw coal bunker weighing monitoring device according to claim 1, characterized in that: The buffer feeding mechanism (3) comprises a support frame (31), the support frame (31) is fixedly mounted on the top of the support platform (1), a support ring (32) is fixedly mounted on the end of the support frame (31), an elastic member (33) is fixedly mounted on the top of the support ring (32), a sleeve ring (35) is fixedly mounted on the top of the elastic member (33), a limit rod (34) is slidably connected to the inner wall of the sleeve ring (35), and the limit rod (34) is fixedly mounted on the top of the support ring (32).

3. A raw coal bunker weighing monitoring device according to claim 2, characterized in that: The top and bottom of the sleeve ring (35) are fixedly mounted with reinforcement blocks (36), the inner wall of the sleeve ring (35) is fixedly mounted with a buffer feed barrel (37), and the inner wall of the reinforcement block (36) is fixedly connected to the outer wall of the buffer feed barrel (37).

4. A raw coal bunker weighing monitoring device according to claim 3, characterized in that: A protrusion block (381) is fixedly installed on the inner wall of the buffer feed barrel (37), an air spring (382) is fixedly installed on the top of the protrusion block (381), a connecting block (383) is fixedly installed on the top of the air spring (382), a connecting rod (384) is fixedly installed on the bottom of the connecting block (383), a protrusion cover (385) is fixedly connected to the bottom of the connecting rod (384), and an annular guide plate (38) located below the protrusion cover (385) is fixedly installed on the inner wall of the buffer feed barrel (37).

5. A raw coal bunker weighing monitoring device according to claim 3, characterized in that: A bottom plate (39) is fixedly mounted on the inner wall of the bottom of the buffer feed barrel (37), a feeding net (391) is fixedly mounted on the inner wall of the bottom plate (39), a rotating block (392) is rotatably connected at the center of the top of the bottom plate (39), a breaking rod (393) is welded on the outer wall of the rotating block (392), a driving motor (394) is fixedly mounted at the center of the bottom of the bottom plate (39), an output shaft of the driving motor (394) is fixedly connected to the bottom of the rotating block (392), and a protective cover (395) is fixedly mounted at the bottom of the bottom plate (39).

6. A raw coal bunker weighing monitoring device according to claim 5, characterized in that: A thorn (3931) is welded on the outer wall of the breaking rod (393), and a reinforcement strip (3932) is welded on the outer wall of the thorn (3931).

7. A raw coal bunker weighing monitoring device according to claim 1, characterized in that: The safety display mechanism (4) comprises an internal thread column (41), wherein the internal thread column (41) is fixedly mounted on the top of the support platform (1), a threaded rod (42) is threadedly connected to the inner wall of the internal thread column (41), a lifting platform (43) is fixedly mounted on the top of the threaded rod (42), and a rotating platform (44) is rotatably connected to the top of the lifting platform (43).

8. A raw coal bunker weighing monitoring device according to claim 7, characterized in that: A protection frame (45) is fixedly mounted on the top of the rotating platform (44), a weighing display instrument (46) is fixedly mounted on the inner wall of the protection frame (45), and an expansion cover (47) is fixedly connected to the right side of the protection frame (45).

9. A raw coal bunker weighing monitoring device according to claim 8, characterized in that: The right side of the expansion cover (47) is fixedly connected to a three-way pipe (48), the top of the three-way pipe (48) is fixedly connected to an ion blower (481), the right side of the three-way pipe (48) is fixedly connected to a static elimination frame (49), and a metal sheet (491) is fixedly installed on the inner wall of the static elimination frame (49).

10. A raw coal bunker weighing monitoring device according to claim 9, characterized in that: A wire (492) is fixedly connected to the outer wall of the metal sheet (491); one end of the wire (492) away from the metal sheet (491) is fixedly connected to the outer wall of the first beam (21); one side of the metal sheet (491) away from the wire (492) is fixedly connected to a metal column (493) located in the inner cavity of the static elimination frame (49); and a metal branch rod (494) is fixedly connected to the outer surface of the metal column (493).

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