Coal conveyor belt alignment device and coal conveyor in thermal power plant

Abstract

This invention provides a coal conveyor belt alignment device and a coal conveyor for a thermal power plant. The coal conveyor belt alignment device includes a base, a mounting frame, an alignment roller assembly, a dust removal mechanism, and a control box. The conveying idler rollers are rotatably mounted on the frame about its width. Both the base and the mounting frame are mounted on the frame. The alignment roller assembly is rotatably mounted on the base about its height to align the belt. The dust removal mechanism is located at the top of the mounting frame to remove coal dust from the surface of the conveying idler rollers. The control box is located at the center of the top of the mounting frame and is electrically connected to the dust removal mechanism and the alignment roller assembly. Therefore, the coal conveyor belt alignment device according to this invention has the advantage of preventing and correcting belt wear and material leakage caused by belt misalignment.

Description

Technical Field

[0001] This invention relates to the field of coal conveying equipment technology, specifically to a coal conveyor belt correction device and a coal conveyor for thermal power plants. Background Technology

[0002] A thermal power plant, or coal-fired power plant for short, requires the use of large quantities of coal, and belt conveyors are used to transport the coal. A belt conveyor is a continuous conveying device that uses a belt as the material-carrying component.

[0003] During the operation of existing belt conveyors, coal ash accumulates on the surface of the idler rollers after prolonged use, forming a coal ash layer. When the coal ash layer on the idler roller surface has different thicknesses, it will affect the angle of the belt during operation. Furthermore, when the material carried by the belt is unevenly distributed, it is easy to cause belt deviation, resulting in material leakage, belt frame wear, and work stoppage due to material idling, which will affect power generation efficiency. Summary of the Invention

[0004] This invention aims to at least partially solve one of the technical problems in the related art. To this end, embodiments of this invention provide a coal conveyor belt alignment device. This coal conveyor belt alignment device can solve the problems of coal ash accumulation on the surface of the idler rollers and belt misalignment mentioned in the background art.

[0005] An embodiment of the present invention provides a coal conveyor for a thermal power plant.

[0006] The conveyor belt alignment device of this invention includes a base, a mounting frame, an alignment roller assembly, a dust removal mechanism, and a control box. The conveying idler rollers are rotatably mounted on the frame about its width. Both the base and the mounting frame are mounted on the frame. The alignment roller assembly is rotatably mounted on the base about its height to align the conveyor belt, and the alignment roller assembly and the conveying idler rollers are spaced apart in the conveying direction. The dust removal mechanism is located at the top of the mounting frame to remove coal dust from the surface of the conveying idler rollers. The control box is located at the center of the top of the mounting frame, and the control box is electrically connected to the dust removal mechanism and the alignment roller assembly.

[0007] The coal conveyor belt alignment device of this invention uses a cleaning mechanism and an alignment roller assembly to clean the coal ash on the surface of the idler rollers, preventing the belt from shifting due to coal ash accumulation, which in turn causes material leakage and wear of the belt frame. In addition, the alignment roller assembly can correct the already shifted belt, further avoiding material leakage and wear of the belt frame, and helping to improve coal conveying efficiency.

[0008] Therefore, the coal conveyor belt correction device of the present invention has the advantage of preventing and correcting the problems of belt wear and material leakage caused by belt misalignment.

[0009] In some embodiments, the ash removal mechanism includes a first motor, a bevel gear assembly, and a scraper assembly. The first motor is connected to the placement frame, and the output end of the first motor is fixedly connected to the bevel gear assembly. The placement frame is provided with the scraper assembly on both sides of the width direction of the frame. The scraper assembly meshes with the bevel gear assembly to drive the scraper assembly to move relative to the conveying roller. The scraper assembly is fitted to the conveying roller to remove coal ash from the surface of the conveying roller.

[0010] In some embodiments, the bevel gear assembly includes a bevel gear, a driven gear, a drive rod, and at least two fixed gears. The bevel gear is connected to the output end of the first motor. The drive rod is disposed on the placement frame and is arranged along the width direction of the frame. The driven gear and at least two fixed gears are all sleeved on the drive rod. The bevel gear meshes with the driven gear, and the fixed gears mesh with the scraper assembly.

[0011] In some embodiments, the scraper assembly includes a rotating rod, a push rod, and a scraper. The rotating rod is rotatably mounted on the frame and extends along the height direction of the frame. The end of the rotating rod meshes with the fixed gear through tapered mating teeth. The rotating rod is perpendicularly connected to the push rod, and the scraper is connected to the end of the push rod away from the placement rod.

[0012] In some embodiments, the placement rack is provided with a storage slot, a first magnetic sheet is fixedly connected to the inside of the top of the scraper, and a first sensing plate adapted to the first magnetic sheet is provided on one side of the placement rack to respond to the push rod and the scraper and be received into the storage slot when cleaning is not performed. The first magnetic sheet and the first sensing plate are electrically connected to the control box accordingly.

[0013] In some embodiments, the push rod is an electrically operated telescopic rod.

[0014] In some embodiments, the surface of the scraper is covered with a layer of soft bristles.

[0015] In some embodiments, the coal conveyor belt correction device further includes an arc plate and a monitor. The two ends of the arc plate are respectively connected to the two sides of the width direction of the placement frame. A monitor is fixedly connected to the middle of the top of the arc plate, and the monitor is signal-connected to the control box.

[0016] In some embodiments, the coal conveyor belt correction device further includes a laser sensing component, which includes a bidirectional laser, a cleaning ring, and a flipping mechanism. The bidirectional laser is mounted on the flipping mechanism, which is rotatably mounted on the placement frame to flip the bidirectional laser. The cleaning ring is attached to the end of the bidirectional laser.

[0017] In some embodiments, the flipping mechanism of the coal conveyor belt correction device includes a dual-axis stepper motor, a connecting pipe, and a laser clamping rod. The two output ends of the dual-axis stepper motor extend along the width direction of the frame. Both output ends of the dual-axis stepper motor are fixedly connected to the connecting pipe. The end of the connecting pipe is connected to the laser clamping rod. The bidirectional laser is fixedly sleeved on the laser clamping rod to drive the bidirectional laser to flip by rotating the connecting pipe. The cleaning ring is contactably disposed at the lower end of the bidirectional laser to clean the end of the bidirectional laser. Both ends of one side of the surface of the bidirectional laser are fixedly connected to a second magnetic sheet. One end of one of the second magnetic sheets contacts a second sensing plate. One end of the second sensing plate is fixedly connected to an energized plate. The bottom of one end of the energized plate is fixedly connected to the cleaning ring.

[0018] In some embodiments, the correction roller assembly of the coal conveyor belt correction device includes a rotating mechanism, a support frame, and a correction roller. The upper end face of the correction roller is flush with the upper end face of the conveying idler roller. The rotating mechanism is rotatably mounted on the base, and the rotating shaft of the rotating mechanism extends along the vertical direction of the frame. The bottom of the support frame is connected to the rotating mechanism, and the correction roller is rotatably fitted onto the top of the support frame.

[0019] In some embodiments, the rotating mechanism of the coal conveyor belt correction device is a hydraulic drive component. The hydraulic drive component includes a hydraulic cylinder, a moving plate, and a rotating component. The rotating component is connected to the support frame and is rotatably mounted on the support frame. One end of the moving plate is hinged to the hydraulic cylinder, and the other end of the moving plate is connected to the rotating component so that the rotating component can be driven to rotate when the hydraulic cylinder rotates. The rotating component includes a rotating shaft, a support base, a worm gear, a worm, a second motor, a support rod, and a connecting rod assembly. The moving plate is connected to the rotating shaft, which passes through the support base. The output end of the second motor is connected to the worm. One end of the connecting rod assembly and the support rod is connected to the support base. The other end of the support rod is rotatably engaged with the shaft of the worm gear. The other end of the connecting rod assembly is fixedly connected to the shaft of the worm gear so that the tilt angle of the support base in the length direction of the frame can be adjusted by the rotation of the worm gear.

[0020] The coal conveyor for thermal power plants according to an embodiment of the present invention includes a frame, conveying rollers, and a coal conveyor belt correction device for thermal power plants according to any one of the above, wherein the conveying rollers are rotatably mounted on the frame about the width of the frame. Attached Figure Description

[0021] Figure 1 This is a three-dimensional schematic diagram of the coal conveyor belt correction device according to an embodiment of the present invention.

[0022] Figure 2 yes Figure 1 A diagram at point A.

[0023] Figure 3 This is a three-dimensional second-view schematic diagram of the coal conveyor belt correction device according to an embodiment of the present invention.

[0024] Figure 4 yes Figure 3 A diagram at point B.

[0025] Figure 5 This is a front view schematic diagram of the coal conveyor belt correction device according to an embodiment of the present invention.

[0026] Figure 6 This is a top view schematic diagram of the coal conveyor belt correction device according to an embodiment of the present invention.

[0027] Figure 7 This is a right-side schematic diagram of the coal conveyor belt correction device according to an embodiment of the present invention.

[0028] Figure label:

[0029] 1 shelf; 11 storage slots;

[0030] Base 2;

[0031] Correcting roller assembly 3; rotating mechanism 31; hydraulic cylinder 301; moving plate 302; rotating component 303;

[0032] Rotating shaft 311; support base 312; worm gear 313; worm 314; second motor 315; support rod 316; connecting rod assembly 317;

[0033] Support frame 32; Correcting roller 33;

[0034] Dust removal mechanism 4; first motor 41; bevel gear assembly 42; bevel gear 421; driven gear 422; drive rod 423; fixed gear 424;

[0035] Scraper assembly 43; rotating rod 431; push rod 432; scraper 433;

[0036] 6. Curved plate; 7. Monitor;

[0037] Laser sensing component 8; bidirectional laser 81; dust removal ring 82; flipping mechanism 83; dual-axis stepper motor 831; connecting pipe 832; laser clamping rod 833. Detailed Implementation

[0038] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0039] The following is for reference. Figures 1-7 This invention describes a coal conveyor belt alignment device and a coal conveyor for thermal power plants, according to embodiments of the present invention.

[0040] The coal conveyor belt correction device of this invention includes a base 2, a placement frame 1, a correction roller 33 assembly 3, a dust removal mechanism 4, and a control box.

[0041] The conveyor rollers are positioned along the width of the frame (e.g., Figure 1 The left-right direction shown in the diagram) is rotatably mounted on the frame; both the base 2 and the mounting frame 1 are mounted on the frame; the alignment roller 33 assembly 3 is rotatably mounted around the height direction of the frame (e.g., in the direction of left-right direction). Figure 1 The belt is rotatably mounted on the base 2 (shown in the up-down direction) to correct the belt deviation, and the belt deviation correction roller 33 assembly 3 and the conveying roller are spaced apart in the conveying direction; the ash removal mechanism 4 is mounted on the top of the placement frame 1 to remove coal ash from the surface of the conveying roller, and the control box is mounted in the middle of the top of the placement frame 1. The control box is electrically connected to the ash removal mechanism 4 and the belt deviation correction roller 33 assembly 3.

[0042] The coal conveyor belt alignment device of this invention uses a cleaning mechanism 4 and an alignment roller 33 assembly 3 to clean the coal ash on the surface of the idler roller, preventing the belt from shifting due to coal ash accumulation, which in turn causes material leakage and wear of the belt frame. In addition, the alignment roller 33 assembly 3 can correct the already shifted belt, further avoiding material leakage and wear of the belt frame.

[0043] Therefore, the coal conveyor belt correction device of the present invention has the advantage of preventing and correcting the problems of belt wear and material leakage caused by belt misalignment.

[0044] Specifically, the rotating shaft 311 of the conveying roller extends along the width direction of the placement frame 1.

[0045] like Figure 1 , Figure 3 and Figure 5As shown, the ash removal mechanism 4 includes a first motor 41, a bevel gear assembly 42, and a scraper assembly 43. The first motor 41 is connected to the placement frame 1. The output end of the first motor 41 is fixedly connected to the bevel gear assembly 42. The scraper assembly 43 meshes with the bevel gear assembly 42 to drive the scraper assembly 43 to move relative to the conveying roller. The scraper assembly 43 is fitted with the conveying roller to remove coal ash from the surface of the conveying roller.

[0046] The coal conveyor belt correction device of this invention divides the ash removal mechanism 4 into a first motor 41, a bevel gear assembly 42 and a scraper assembly 43. The output end of the first motor 41 is connected to the bevel gear assembly 42 which is fixedly connected, so that the output force of the first motor 41 can be reversed, thereby facilitating the arrangement of this part of the structure.

[0047] like Figures 1 to 5 As shown, the bevel gear assembly 42 includes a bevel gear 421, a driven gear 422, a drive rod 423, and at least two fixed gears 424. The bevel gear 421 is disposed on the output end of the first motor 41, and the drive rod 423 is disposed on the mounting frame 1. The driven gear 422 and at least two fixed gears 424 are all sleeved on the drive rod 423. The bevel gear 421 meshes with the driven gear 422, and the fixed gears 424 mesh with the scraper assembly 43.

[0048] The conveyor belt alignment device of this invention divides the bevel gear assembly 42 into a bevel gear 421, a driven gear 422, a drive rod 423, and at least two fixed gears 424. The at least two fixed gears 424 can generate multiple output forces, thereby reducing the number of motors required. Therefore, this conveyor belt alignment device has the advantage of simplifying equipment setup.

[0049] Furthermore, the first motor 41 is threadedly connected to the top side of the placement frame 1.

[0050] The drive rod 423 extends along the width direction of the placement frame 1.

[0051] like Figures 1 to 5 As shown, the scraper assembly 43 includes a rotating rod 431, a push rod 432, and a scraper 433. The rotating rod 431 is rotatably mounted on the frame and extends along the height direction of the frame. The end of the rotating rod 431 meshes with a fixed gear 424 through a tapered mating tooth. The rotating rod 431 is perpendicularly connected to the push rod 432, and the scraper 433 is connected to the end of the push rod 432 away from the placement rod.

[0052] The conveyor belt correction device of this invention divides the scraper assembly 43 into a rotating rod 431, a push rod 432, and a scraper 433. The rotating rod 431 is rotatably mounted on the frame and extends along the height direction of the frame. The rotation of the first motor 41 drives the scraper assembly 43 to rotate horizontally through the bevel gear assembly 42, thereby controlling the rotation of the scraper 433 and improving the cleaning range of the scraper 433 on the conveyor rollers.

[0053] Furthermore, the push rod 432 is an electrically telescopic rod, which can then push the scraper 433 to move. The rotating rod 431 rotates to drive the electric push rod to rotate. One end of the electric push rod is fixedly connected to the scraper 433. The electric push rod can fix the position of the scraper 433. The rotation of the electric push rod can drive the scraper 433 to rotate. When the electric push rod rotates to a suitable position, it can be extended or shortened to push the scraper 433 to the position where the conveyor roller needs cleaning. The scraper 433 and the soft brush can clean the surface of the conveyor roller. Therefore, the coal conveyor belt correction device of this embodiment further improves the cleaning range of the scraper 433 on the conveyor roller.

[0054] Furthermore, the surface of scraper 433 is covered with a layer of soft bristles. This improves the cleaning effect on the conveyor rollers.

[0055] Specifically, the first motor 41 is threadedly connected to one side of the top of the placement frame 1. The placement frame 1 can fix the position of the first motor 41 to ensure that the position of the first motor 41 does not change. A bevel gear 421 is fixedly connected to the output end of the first motor 41. The first motor 41 can fix the position of the bevel gear 421. The output end of the first motor 41 can drive the bevel gear 421 to rotate. A driven gear 422 meshes between the teeth of the bevel gear 421. The rotation of the bevel gear 421 can mesh with the driven gear 422 to rotate. A drive rod 423 is fixedly sleeved in the middle of the driven gear 422. The drive rod 423 can fix the position of the driven gear 422. The rotation of the driven gear 422 can drive the drive rod 423 to rotate. Fixed gears 424 are fixedly connected to both sides of the drive rod 423. The drive rod 423 can rotate the fixed gears 424 on both sides. Position 4 is fixed. Rotating the drive rod 423 can drive the fixed gears 424 on both sides to rotate. The teeth of the fixed gears 424 mesh with a rotating gear rod. The rotation of the fixed gears 424 can mesh with the mating teeth at one end of the rotating rod 431 to rotate. One end of the rotating rod 431 is fixedly connected to an electric push rod to fix the position of the electric push rod. The rotation of the rotating rod 431 can drive the electric push rod to rotate. One end of the electric push rod is fixedly connected to a scraper 433. The surface of the scraper 433 is covered with a layer of soft brush. The electric push rod can fix the position of the scraper 433. The rotation of the electric push rod can drive the scraper 433 to rotate. When the electric push rod rotates to the appropriate position, the electric push rod is activated again. The electric push rod changes the position of the scraper 433 and pushes the scraper 433 to the position where the roller needs to be cleaned. The scraper 433 and the soft brush can clean the surface of the roller.

[0056] like Figures 1 to 5 As shown, the placement rack 1 is provided with a storage slot 11, and a first magnetic sheet is fixedly connected to the inside of the top of the scraper 433. A first sensing plate adapted to the first magnetic sheet is provided on one side of the placement rack 1 so that the push rod 432 and the scraper 433 can be accommodated in the storage slot 11 when cleaning is not in operation.

[0057] In the conveyor belt correction device of this invention, a first magnetic sheet is fixedly connected to the inside of the top of the scraper 433. The scraper 433 can fix the position of the first magnetic sheet. When the scraper 433 moves or rotates, it drives the first magnetic sheet to move or rotate. The first motor 41 and the electric push rod drive the scraper 433 to reset. A first sensing plate adapted to the first magnetic sheet is provided on one side of the placement frame 1. The placement frame 1 can fix the position of the first sensing plate. After the first sensing plate contacts the first magnetic sheet, the power supply of the first motor 41 is connected. When the first magnetic sheet does not contact the first sensing plate, the power supply of the first motor 41 is disconnected.

[0058] like Figure 1 and Figure 5As shown, the coal conveyor belt correction device of this embodiment of the invention also includes an arc plate 6 and a monitor 7. The two ends of the arc plate 6 are respectively connected to the two sides of the width direction of the placement frame 1. A monitor is fixedly connected to the middle of the top of the arc plate 6, and the monitor is connected to the control box signal accordingly.

[0059] The conveyor belt alignment device of this invention, through the arrangement of an arc-shaped plate 6 and a monitor 7, wherein the monitor 7 is mounted on the arc-shaped plate 6, has relatively small deformation compared to a straight plate structure, thus avoiding the problem of large monitoring errors caused by the displacement of the monitor 7 due to the deformation of the arc-shaped plate 6. Therefore, the conveyor belt alignment device of this invention has the advantage of improving monitoring accuracy.

[0060] like Figure 1 , Figure 2 and Figure 6 As shown, the conveyor belt correction device of this embodiment of the invention also includes a laser sensing component 8. The laser sensing component 8 includes a bidirectional laser 81, a cleaning ring 82, and a flipping mechanism 83. The bidirectional laser 81 is mounted on the flipping mechanism 83. One end of the bidirectional laser 81 can monitor the position of the belt. The flipping mechanism 83 is rotatably mounted on the placement frame 1 to flip the bidirectional laser 81. The cleaning ring 82 is attached to the end of the bidirectional laser 81. One end of the bidirectional laser 81 can monitor the position of the belt.

[0061] The conveyor belt alignment device of this invention, through the laser sensing component 8, is divided into a bidirectional laser transducer 81, a dust removal ring 82, and a flipping mechanism 83. The flipping mechanism 83 is rotatably mounted on the mounting frame 1 to flip the bidirectional laser transducer 81. During the flipping process, the probe on the bidirectional laser transducer 81 is cleaned, ensuring that the unused end of the bidirectional laser transducer 81 is not contaminated with coal dust, thus ensuring the accuracy of the bidirectional laser transducer 81. Therefore, the conveyor belt alignment device of this invention has the advantage of improving the accuracy of laser sensing.

[0062] like Figure 1 , Figure 2 and Figure 6As shown, the flipping mechanism 83 includes a dual-axis stepper motor 831, a connecting tube 832, and a laser clamping rod 833. The two output ends of the dual-axis stepper motor 831 extend along the width direction of the frame. Both output ends of the dual-axis stepper motor 831 are fixedly connected to the connecting tube 832. The end of the connecting tube 832 is connected to the laser clamping rod 833. The bidirectional laser device 81 is fixedly sleeved on the laser clamping rod 833 so that the bidirectional laser device 81 can be flipped by rotating the connecting tube 832. The cleaning ring 82 is disposed in contact with the lower end of the bidirectional laser device 81 to clean the end of the bidirectional laser device 81. The two ends of one side of the surface of the bidirectional laser device 81 are fixedly connected to a second magnetic sheet. One end of one of the second magnetic sheets contacts a second sensing plate. One end of the second sensing plate is fixedly connected to an energized plate. The bottom of one end of the energized plate is fixedly connected to the cleaning ring 82.

[0063] The conveyor belt alignment device of this invention comprises a flipping mechanism 83 consisting of a dual-axis stepper motor 831, a connecting pipe 832, and a laser clamping rod 833. A bidirectional laser instrument 81 is fixedly mounted on the laser clamping rod 833, and the bidirectional laser instrument 81 is flipped by rotating the connecting pipe 832. A dust-cleaning ring 82 is disposed at the lower end of the bidirectional laser instrument 81 to clean its end, preventing dust accumulation and ensuring good laser detection. Therefore, the conveyor belt alignment device of this invention further improves the accuracy of laser sensing.

[0064] Specifically, the connecting pipe 832 extends along the width of the frame.

[0065] One end of the second magnetic sheet is in contact with the second sensing plate, and one end of the second sensing plate is fixedly connected to a power board. The power board can fix the position of the second sensing plate. When the second magnetic sheet is in contact with the second sensing plate, the power board can supply power to one end of the bidirectional laser device 81 through the second sensing plate and the second magnetic sheet. One end of the bidirectional laser device 81 can monitor the position of the belt.

[0066] like Figure 1 , Figure 3 and Figure 5 As shown, the alignment roller 33 assembly 3 includes a rotating mechanism 31, a support frame 32, and an alignment roller 33. The upper end face of the alignment roller 33 is flush with the upper end face of the conveying roller. The rotating mechanism 31 is rotatably mounted on the base 2. The rotating shaft 311 of the rotating mechanism 31 extends along the vertical direction of the frame. The bottom of the support frame 32 is connected to the rotating mechanism 31, and the top of the support frame 32 is connected to the alignment roller 33.

[0067] The conveyor belt alignment device of this invention comprises an alignment roller 33 assembly 3 divided into a rotating mechanism 31, a support frame 32, and an alignment roller 33. The rotating mechanism 31 is rotatably mounted on the base 2, and the rotating shaft 311 of the rotating mechanism 31 extends along the vertical direction of the frame, thereby adjusting the offset of the two sides of the conveyor belt in the width direction. Therefore, this conveyor belt alignment device has the advantage of simple structure.

[0068] like Figure 1 , Figure 3 , Figure 5 and Figure 7 As shown, the rotating mechanism 31 is a hydraulic drive component, which includes a hydraulic cylinder 301, a moving plate 302, and a rotating component 303. The rotating component 303 is connected to the support frame 32 and is rotatably mounted on the support frame 32. One end of the moving plate 302 is hinged to the hydraulic cylinder 301, and the other end of the moving plate 302 is connected to the rotating component 303 so that the rotating component 303 can be driven to rotate when the hydraulic cylinder 301 rotates. The rotating component 303 includes a rotating shaft 311, a support base 312, a worm gear 313, a worm 314, and a... The second motor 315, support rod 316, and connecting rod assembly 317 are connected. The moving plate 302 is connected to the rotating shaft 311, which passes through the support base 312. The output end of the second motor 315 is connected to the worm gear 314. One end of the connecting rod assembly 317 and the support rod 316 is connected to the support base 312. The other end of the support rod 316 is rotatably engaged with the shaft of the worm wheel 313. The other end of the connecting rod assembly 317 is fixedly connected to the shaft of the worm wheel 313 so that the tilt angle of the support base 312 in the length direction of the frame can be adjusted by the rotation of the worm wheel 313.

[0069] The coal conveyor belt alignment device of this invention comprises a hydraulic drive component consisting of a hydraulic cylinder 301, a moving plate 302, and a rotating component 303. The hydraulic cylinder 301 drives the moving plate 302 to rotate, which in turn drives the rotating component 303 to rotate, thereby solving the problem of belt misalignment during conveying. Therefore, this coal conveyor belt alignment device can correct belt wear and material leakage caused by belt misalignment.

[0070] The conveyor belt alignment device of this invention comprises a rotating component 303 including a rotating shaft 311, a support base 312, a worm gear 313, a worm 314, a second motor 315, a support rod 316, and a connecting rod assembly 317. A moving plate 302 is connected to the rotating shaft 311, which passes through the support base 312. The output end of the second motor 315 is connected to the worm 314. One end of the connecting rod assembly 317 and the support rod 316 are connected to the support base 312. The other end of the support rod 316 is rotatably engaged with the shaft of the worm gear 313. The other end of the connecting rod assembly 317 is fixedly connected to the shaft of the worm gear 313 so that the tilt angle of the support base 312 along the length of the frame can be adjusted by the rotation of the worm gear 313. This, in turn, changes the height of the alignment roller 33, avoiding drifting problems caused by the uphill slope of part of the conveyor belt and inconsistent angles in different sections.

[0071] Specifically, such as Figure 1 , Figure 3 and Figure 7As shown, a rotating rod 431 is rotatably connected to the center of the top of the base 2 via a bearing. The base 2 can restrict the position of the rotating rod 431, limiting its rotation to the center of the top of the base 2. A rotating ring is fixedly sleeved on the lower part of the surface of the rotating rod 431, and the position of the rotating ring can be fixed. The rotation of the rotating ring can drive the rotating rod 431 to rotate. A movable plate 302 is rotatably connected to one side of the rotating ring. The movement of the movable plate 302 can drive the rotating ring to rotate. A connecting ring can connect the rotating rod 431 to the movable plate 302. A hydraulic system is fixedly connected to one side of the movable plate 302. Hydraulic cylinder 301 can fix the position of moving plate 302. The output end of hydraulic cylinder 301 can drive moving plate 302 to move. When the belt blocks the upward end of bidirectional laser instrument 81 and bidirectional laser instrument 81 rotates, bidirectional laser instrument 81 transmits a signal to control box. Control box controls oil pump to supply oil to hydraulic cylinder 301, hydraulic cylinder 301 works, pushing moving plate 302 to move. Moving plate 302 pushes and pulls rotating ring. Rotation of rotating ring can drive rotating rod 431 to rotate. Rotating rod 431 drives straightening roller 33 to rotate. The rotation of straightening roller 33 can straighten belt. After the straightening roller 33 rotates, it pushes the belt to the appropriate position to enable normal operation of equipment. Moving rods are fixedly connected to both sides of the bottom of straightening roller 33. An extension plate is bolted to the bottom of one end of the hydraulic cylinder 301. The extension plate can fix the position of the hydraulic cylinder 301. Activation of the hydraulic cylinder 301 can change the position of the straightening roller 33. One end of the extension plate is fixedly connected to one side of the base 2, and the base 2 can fix the position of the extension plate. A rotating component 303 is positioned in the middle of the bottom of the base 2. The base 2 can fix the position of the rotating component 303. Rotation of the rotating component 303 can drive the base 2 to rotate. A fixing component is sleeved on the bottom of the rotating component 303, allowing the rotating component 303 to rotate on the top of the fixing component. A circular plate is fixedly connected to the bottom of the fixing component, fixing its position and providing support for some components of the device. Support rings are fixedly connected to both sides of the circular plate surface. The circular plate can fix the position of the support rings to ensure that the position of the support rings will not change. A connecting rod is sleeved inside the support ring. The support ring can restrict the position of the connecting rod, restricting the connecting rod to rotate only inside the support ring. The support ring can support the connecting rod. A worm gear is fixedly sleeved in the middle of the connecting rod. The rotation of the worm gear can drive the connecting rod to rotate inside the support ring. A worm 314 is meshed between the teeth of the worm gear. The rotation of the worm 314 can mesh with the worm gear to rotate. A second motor 315 is fixedly connected to one end of the worm 314. The second motor 315 can fix the position of the worm 314. When the second motor 315 is started, the output end of the second motor 315 can drive the worm 314 to rotate.

[0072] Specifically, one end of the worm 314 is rotatably connected to the middle of the inner wall of the fixing member via a bearing, and the fixing member can be set to restrict the worm 314 to rotate only in the middle of the inner wall of the fixing member. The bottom of the second motor 315 is fixedly connected to a support plate by bolts. The support plate can fix the position of the second motor 315 to ensure that the position of the second motor 315 will not change. One side of the support plate is fixedly connected to the bottom of one side of the circular plate surface, and the circular plate can fix the position of the support plate.

[0073] The following is a further introduction to the specific working method, as detailed in the description below: When the specific coal conveyor belt alignment device in a thermal power plant is in operation / use: If it is necessary to change the device position, the second motor 315 is started. The second motor 315 drives the worm gear 314 to rotate. The worm gear 314 meshes with the worm wheel and rotates. The rotation of the worm wheel drives the connecting rod assembly 317 to rotate. The connecting rod assembly 317 drives the base 2 and the rotating part 303 to rotate on the fixed part, thereby changing the angle of the alignment roller 33. The monitor monitors the surface of the idler roller. When the monitor detects coal ash on the surface of the idler roller, it starts the first motor 41 through the control box. The output end of the first motor 41 drives the bevel gear 421 to rotate. Wheel 421 meshes with driven gear 422, driving drive rod 423 to rotate. The rotation of drive rod 423 drives fixed gears 424 on both sides to rotate. Fixed gears 424 mesh with rotating gears to rotate. Rotating gears drive electric push rod and scraper 433 to move. When electric push rod reaches its maximum position, it starts, pushing scraper 433 to the position where dust needs to be cleaned to clean the surface of the roller. After cleaning, electric push rod resets and pulls scraper 433. The output end of first motor 41 rotates in the opposite direction, driving electric push rod and scraper 433 to reset into the collection groove 11. When the first magnetic piece at one end of scraper 433 contacts the first induction plate, it energizes rotating mechanism 31. After the rotating mechanism 31 is powered on, the upper part of the bidirectional laser instrument 81 monitors the position of the belt. When one side of the bidirectional laser instrument 81 is blocked by the belt, the dual-axis stepper motor 831 is started through the control box. The two output ends of the dual-axis stepper motor 831 drive the laser clamping rod 833 and the bidirectional laser instrument 81 to rotate. At the same time, the control box controls the oil pump to supply oil to the hydraulic cylinder 301. The hydraulic cylinder 301 works, pushing the moving plate 302 to move. The moving plate 302 pushes the rotating ring to rotate. The rotating ring drives the rotating rod 431 and the straightening roller 33 to rotate. The rotation of the straightening roller 33 can straighten the belt. When the bidirectional laser instrument 81 rotates, it drives the second magnetic plate to rotate. When the second magnetic plate is no longer... After contacting the second sensing plate, the bidirectional laser 81 loses power and ceases operation. When the output of the dual-axis stepper motor 831 drives the bidirectional laser 81 to rotate 180°, the dual-axis stepper motor 831 stops moving. The lower part of the bidirectional laser 81 rotates to the upper part, causing the lower second magnetic plate to rotate to the upper part and contact the second sensing plate. Power is then supplied to the other side of the bidirectional laser 81 to continue monitoring the belt. While the bidirectional laser 81 is rotating, the cleaning ring 82 cleans the side of the bidirectional laser 81 that is no longer in use. After the belt returns to the correct track and no longer obstructs the bidirectional laser 81, the hydraulic cylinder 301 pulls the rotating ring, rotating rod 431, and correction roller 33 to reset. All of the above electronic equipment is powered by an internal battery (not shown) or an external wire (not shown).

[0074] The coal conveyor for thermal power plants according to any one of the above embodiments includes a frame, conveying rollers, a belt, and a coal conveyor belt correction device for thermal power plants. The conveying rollers are rotatably mounted on the frame in the width direction of the frame, and the belt is sleeved on the conveying rollers.

[0075] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0076] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0077] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0078] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0079] In this invention, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0080] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A coal conveyor belt alignment device, characterized in that, include: A base and a mounting frame, both of which can be mounted on a frame; A belt-correcting roller assembly is rotatably mounted on the base about the height of the frame to correct the belt deviation, and the belt-correcting roller assembly can be spaced apart from the conveying roller in the conveying direction. The system includes a dust removal mechanism and a control box. The dust removal mechanism is located at the top of the placement frame to remove coal dust from the surface of the conveying idler roller. The control box is located at the middle of the top of the placement frame and is electrically connected to the dust removal mechanism and the correction roller assembly. The dust removal mechanism includes a first motor, a bevel gear assembly, and a scraper assembly. The first motor is connected to the placement frame, and its output end is fixedly connected to the bevel gear assembly. The scraper assembly is provided on both sides of the placement frame in the width direction. The scraper assembly meshes with the bevel gear assembly to drive the scraper assembly to move relative to the conveying idler roller. The scraper assembly is fitted against the conveying idler roller to remove coal dust from its surface. An arc-shaped plate and a monitor are provided. The two ends of the arc-shaped plate are respectively connected to the two sides of the width direction of the placement rack. The monitor is fixedly connected to the middle of the top of the arc-shaped plate. The monitor is connected to the control box in a corresponding signal manner. A laser sensing assembly includes a bidirectional laser, a cleaning ring, and a flipping mechanism. The bidirectional laser is mounted on the flipping mechanism, which is rotatably mounted on the placement frame to flip the bidirectional laser. The cleaning ring is attached to the end of the bidirectional laser. The flipping mechanism includes a dual-axis stepper motor, a connecting tube, and a laser clamping rod. The two output ends of the dual-axis stepper motor extend along the width direction of the frame. Both output ends of the dual-axis stepper motor are fixedly connected to the connecting tube. The end of the connecting tube is connected to the laser clamping rod. The bidirectional laser is fixedly sleeved on the laser clamping rod so that the bidirectional laser can be flipped by rotating the connecting tube. The cleaning ring is disposed in contact with the lower end of the bidirectional laser to clean the end of the bidirectional laser. Both ends of one side of the surface of the bidirectional laser are fixedly connected to a second magnetic sheet. One end of one of the second magnetic sheets contacts a second sensing plate. One end of the second sensing plate is fixedly connected to an energized plate. The bottom of one end of the energized plate is fixedly connected to the cleaning ring.

2. The coal conveyor belt alignment device according to claim 1, characterized in that, The bevel gear assembly includes a bevel gear, a driven gear, a drive rod, and at least two fixed gears. The bevel gear is connected to the output end of the first motor. The drive rod is mounted on the placement frame and is arranged along the width direction of the frame. The driven gear and at least two fixed gears are all fitted onto the drive rod. The bevel gear meshes with the driven gear, and the fixed gears mesh with the scraper assembly.

3. The coal conveyor belt alignment device according to claim 2, characterized in that, The scraper assembly includes a rotating rod, a push rod, and a scraper. The rotating rod is rotatably mounted on the frame and extends along the height of the frame. The end of the rotating rod meshes with the fixed gear through a tapered mating tooth. The rotating rod is perpendicularly connected to the push rod, and the scraper is connected to the end of the push rod away from the placement frame.

4. The coal conveyor belt alignment device according to claim 3, characterized in that, The placement rack is provided with a storage slot. A first magnetic sheet is fixedly connected to the inside of the top of the scraper. A first sensing plate adapted to the first magnetic sheet is provided on one side of the placement rack to accommodate the push rod and the scraper into the storage slot when cleaning is not in operation. The first magnetic sheet and the first sensing plate are electrically connected to the control box. And / or, the push rod is an electrically operated telescopic rod; And / or, the surface of the scraper is covered with a layer of soft bristles.

5. The coal conveyor belt alignment device according to claim 1, characterized in that, The correction roller assembly includes a rotating mechanism, a support frame, and a correction roller. The upper end face of the correction roller is flush with the upper end face of the conveying roller. The rotating mechanism is rotatably mounted on the base. The rotating shaft of the rotating mechanism extends along the vertical direction of the frame. The bottom of the support frame is connected to the rotating mechanism. The correction roller is rotatably fitted onto the top of the support frame.

6. The coal conveyor belt alignment device according to claim 5, characterized in that, The rotating mechanism is a hydraulic drive component, which includes a hydraulic cylinder, a movable plate, and a rotating component. The rotating component is rotatably mounted on the support frame, and one end of the movable plate is hinged to the hydraulic cylinder, while the other end of the movable plate is connected to the rotating component so that the rotating component can be driven to rotate when the hydraulic cylinder rotates. The rotating component includes a rotating shaft, a support base, a worm gear, a worm, a second motor, a support rod, and a connecting rod assembly. The moving plate is connected to the rotating shaft, which passes through the support base. The output end of the second motor is connected to the worm. One end of the connecting rod assembly and the support rod is connected to the support base. The other end of the support rod is rotatably engaged with the rotating shaft of the worm gear. The other end of the connecting rod assembly is fixedly connected to the rotating shaft of the worm gear so as to adjust the tilt angle of the support base along the length direction of the frame by rotating the worm gear.

7. A coal conveyor for a thermal power plant, characterized in that: The device includes a frame, conveyor rollers, a belt, and a coal conveyor belt correction device according to any one of claims 1-6, wherein the conveyor rollers are rotatably mounted on the frame about the width of the frame, and the belt is fitted onto the conveyor rollers.

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