A coal bunker hydraulic cleaning device

Abstract

The present invention relates to the technical field of coal bunker clearing, and specifically discloses a coal bunker hydraulic clearing device, comprising: a hollow drum, which is vertically rotatably installed in the coal bunker, and a closure that can be opened and closed is provided on one side of the hollow drum; a rotary drive unit, which is arranged on the top of the coal bunker and is used to drive the hollow drum to rotate circumferentially; a lifting drive unit, which is liftably arranged in the hollow drum; a top support unit, one end of which is rotatably installed on the lifting drive unit; a hydraulic clearing unit, which is installed on the end of the top support unit away from the lifting drive unit, and the hydraulic clearing unit includes a mounting platform fixed on the top support unit, and a hydraulic flushing component is arranged on the mounting platform; the hydraulic flushing component in the present invention utilizes a deflection shaft to drive the entire deflection disk to swing back and forth, so as to realize the circumferential reciprocating swinging action of the high-pressure nozzle, so that the cleaning liquid sprayed by the high-pressure nozzle can impact the inner wall of the coal bunker at different angles, thereby effectively improving the clearing effect.

Description

Technical Field

[0001] The present invention relates to the technical field of coal bunker clearing, and more specifically, to a coal bunker hydraulic clearing device. Background Art

[0002] A coal bunker is a large container used to store coal in a coal-fired power plant. Most existing coal bunkers are vertical bunkers with a feed port on the top and a conical discharge port at the bottom. Since coal particles have great friction and adhesion, and the upper part of the coal bunker structure is cylindrical and the lower part is conical, as the coal particles flow, the closer they are to the discharge port, the more obvious the extrusion and friction between the coal particles and the inner wall of the conical hopper, and the flow resistance of the coal gradually increases. The coal particles at the top of the coal bunker are subject to less resistance and flow faster, and the additional pressure generated will be further transmitted to the coal below the coal bunker, thereby making the friction resistance of the coal close to the inner wall of the conical hopper greater. After the coal bunker has been used for a certain period of time, the coal is prone to jamming, arching and wall adhesion at the discharge port of the conical section at the lower end of the coal bunker, resulting in blockage of the coal bunker discharge port.

[0003] The existing methods of clearing the coal bunker mainly include manual clearing and air cannon dredging. Manual clearing requires workers to enter the coal bunker and use shovels to remove the scale on the inner wall of the coal bunker. For the lower conical section of the coal bunker, workers cannot stand steadily and the operation risk is relatively high. Although the high-speed compressed gas released instantly by the air cannon can knock away most of the scale, it cannot achieve accurate full coverage clearing, and the impact will generate a lot of coal dust. Summary of the invention

[0004] In order to overcome the above technical problems, the present invention proposes a coal bunker hydraulic cleaning device.

[0005] The purpose of the present invention can be achieved through the following technical solutions:

[0006] A coal bunker hydraulic cleaning device, applied to a coal bunker, comprising:

[0007] A hollow drum is installed in a coal bunker for vertical rotation, and a closure member that can be opened and closed is provided on one side of the hollow drum;

[0008] A rotary drive unit, which is arranged on the top of the coal bunker and is used to drive the hollow drum to rotate circumferentially;

[0009] A lifting drive unit is disposed in the hollow drum in a liftable manner;

[0010] A top support unit, one end of which is rotatably mounted on the lifting drive unit;

[0011] A hydraulic bin cleaning unit is installed at one end of the top support unit away from the lifting drive unit, and the hydraulic bin cleaning unit includes a mounting platform fixed on the top support unit, and a hydraulic flushing component is arranged on the mounting platform;

[0012] The hydraulic flushing part includes a main shaft rotatably mounted on a mounting platform, a driving motor for driving the main shaft is mounted at one end of the mounting platform, a deflection shaft is arranged on the main shaft, the axis of the deflection shaft is cross-distributed with the axis of the main shaft, a deflection disk is arranged at the center of the deflection shaft, and a high-pressure nozzle is detachably mounted on the upper end of the deflection disk through a connecting plate;

[0013] A limiting ball is arranged at the lower end of the deflection plate, and an arc-shaped limiting groove matched with the limiting ball is arranged on the mounting platform.

[0014] As a further solution of the present invention: the closing member includes an annular cavity opened in the inner wall of the hollow drum, a through hole connected to the annular cavity is opened on one side of the hollow drum, an annular sealing plate adapted to the through hole is movably embedded in the annular cavity, an opening and closing motor is installed on the inner wall of the hollow drum, an opening and closing gear is installed at the output end of the opening and closing motor, and an opening and closing gear ring meshing with the opening and closing gear is provided on the annular sealing plate.

[0015] As a further solution of the present invention: the rotary drive unit includes a rotary motor fixedly mounted on the top of the coal bunker, a rotary gear is mounted on the output end of the rotary motor, and a rotary gear disk meshing with the rotary gear is disposed on the upper end of the hollow drum.

[0016] As a further solution of the present invention: the lifting drive unit includes a lifting slide rail vertically fixed in the hollow drum and a lifting screw rod vertically rotatably installed in the hollow drum, a lifting platform is slidably arranged on the lifting slide rail, and the lifting platform is threadedly connected to the lifting screw rod; a lifting motor for driving the lifting screw rod is installed at the bottom of the hollow drum, and the top support unit is rotatably installed on the lifting platform.

[0017] As a further solution of the present invention: the supporting unit comprises a flip plate and a telescopic plate, one end of the flip plate is rotatably mounted on a lifting platform, and a flip motor for driving the flip plate is fixedly mounted on the lifting platform;

[0018] The telescopic plate is slidably embedded in the flip plate, the flip plate slides into a guide rod in the telescopic plate, a movably sleeved support spring is provided on the guide rod, and the mounting platform is mounted on one end of the telescopic plate away from the flip plate.

[0019] As a further solution of the present invention: a roller which is rotatably mounted on one end of the telescopic plate away from the flip plate and is adapted to roll with the inner wall of the coal bin; when the telescopic plate is in a horizontal state, the axis of the roller is in a vertical state.

[0020] As a further solution of the present invention: a scraper is also provided on the mounting platform, and the scraper includes a sleeve plate fixed on the mounting platform, a reciprocating slide rod is horizontally slidably sleeved on the sleeve plate, a vertical plate is provided in the middle of the reciprocating slide rod, a through groove is vertically opened in the vertical plate, an eccentric rod is connected to one end of the main shaft facing the reciprocating slide rod, a lever matching the through groove is provided on the end of the eccentric rod away from the main shaft, a slide is fixed to the lower end of the vertical plate, and a scraper is installed on the slide.

[0021] As a further solution of the present invention: a plurality of telescopic rods are slidably arranged on the slide, a mounting plate is fixed to one end of the telescopic rod away from the slide, the scraper is mounted on the mounting plate, a compression spring is provided on a movable sleeve on the telescopic rod, and a limiting block is provided on one end of the telescopic rod away from the mounting plate.

[0022] As a further solution of the present invention: it also includes a hydraulic transmission unit, the hydraulic transmission unit includes a hollow sleeve fixed on the top of the coal bunker and a connector fixed on the telescopic plate, the hollow sleeve is rotatably connected to the hollow rotating cylinder, a sealing ring is installed at the rotatable connection between the hollow sleeve and the hollow rotating cylinder, and a liquid inlet pipe is connected to one side of the hollow sleeve; the hollow rotating cylinder is divided into a chamber by a partition, and the side wall of the chamber is provided with a plurality of through holes connected to the inside of the hollow sleeve;

[0023] The two ends of the connector are respectively connected with a first corrugated hose and a second corrugated hose, the end of the second corrugated hose away from the connector is connected to the high-pressure nozzle, and the end of the first corrugated hose away from the connector passes through the interior of the hollow drum and is connected to the chamber.

[0024] As a further solution of the present invention: it also includes an arch breaking unit, the arch breaking unit includes a fixed disk and a turning disk, the fixed disk is fixedly installed at the lower end of the hollow drum, a flexible column is connected between the fixed disk and the turning disk, a tapered rod is provided on the lower end surface of the turning disk, and a spiral sheet is provided on the tapered rod;

[0025] A turning ball is fixed to one side of the turning plate through a connecting rod, and a limiting ring matched with the turning ball is arranged on the inner wall of the coal bin, and the height of the limiting ring is higher than that of the turning plate.

[0026] Beneficial effects of the present invention:

[0027] The hydraulic flushing member of the present invention utilizes the deflection shaft to drive the entire deflection plate to swing back and forth, so as to realize the circumferential reciprocating swinging motion of the high-pressure nozzle, so that the cleaning liquid sprayed by the high-pressure nozzle can impact the inner wall of the coal bunker at different angles, effectively improving the flushing effect;

[0028] While the main shaft rotates and drives the high-pressure nozzle to swing back and forth to spray the cleaning liquid, it can drive the vertical plate and the reciprocating slide rod to move back and forth, and then drive the scraper on the slide to move back and forth, so as to achieve reciprocating scraping of the scale on the inner wall of the coal bunker, and can clean the inner wall of the coal bunker in a circumferential direction to avoid residual cleaning dead corners;

[0029] The top support unit can ensure that the hydraulic cleaning unit always maintains a constant distance from the inner wall of the coal bunker. At the same time, it can be adaptively adjusted according to the contour changes of the conical section at the lower end of the coal bunker, so that the lower conical section of the coal bunker can be cleaned in a targeted manner, effectively removing the stubborn scale adhering to the surface of the conical section and improving the cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The present invention will be further described below in conjunction with the accompanying drawings.

[0031] Figure 1 It is a three-dimensional schematic diagram of the coal bunker;

[0032] Figure 2 This is a cross-sectional view of the coal bunker;

[0033] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0034] Figure 4 for Figure 2 Enlarged view of point B in the middle;

[0035] Figure 5 It is a structural schematic diagram of the present invention;

[0036] Figure 6 It is a structural schematic diagram of another perspective of the present invention;

[0037] Figure 7 for Figure 6 Enlarged view of point C in the middle;

[0038] Figure 8 It is a structural schematic diagram of the lifting drive unit and the top support unit in the present invention;

[0039] Fig. 9 It is a structural schematic diagram of the hydraulic clearing unit in the present invention;

[0040] Fig.10 It is a structural schematic diagram of the hydraulic clearing unit in the present invention from another perspective;

[0041] Fig.11 It is a structural schematic diagram of the hydraulic transmission unit in the present invention.

[0042] In the figure:

[0043] 100. Coal bunker;

[0044] 200, hollow drum; 210, closure member; 211, annular cavity; 212, annular sealing plate; 213, opening and closing motor; 214, opening and closing gear; 215, opening and closing gear ring;

[0045] 300, a rotation drive unit; 310, a rotation motor; 320, a rotation gear; 330, a rotation gear disc;

[0046] 400, lifting drive unit; 410, lifting slide rail; 420, lifting platform; 430, lifting screw rod;

[0047] 500, supporting unit; 510, flip plate; 520, flip motor; 530, telescopic plate; 540, guide rod; 550, supporting spring; 560, roller;

[0048] 600, hydraulic clearing unit; 610, mounting table; 620, main shaft; 630, driving motor; 640, deflection shaft; 641, deflection plate; 642, arc-shaped limit groove; 643, limit ball; 644, connecting plate; 650, sleeve plate; 651, reciprocating slide rod; 652, vertical plate; 653, through groove; 654, eccentric rod; 655, lever; 656, slide table; 657, telescopic rod; 658, mounting plate; 659, compression spring; 660, scraper; 670, high-pressure nozzle;

[0049] 700, hydraulic transmission unit; 710, hollow sleeve; 720, liquid inlet pipe; 730, connector; 740, first corrugated hose; 750, second corrugated hose; 760, partition; 770, chamber; 780, through hole; 790, sealing ring;

[0050] 800, arch-breaking unit; 810, fixed disk; 820, flip disk; 830, flexible column; 840, tapered rod; 850, spiral sheet; 860, connecting rod; 870, flip ball; 880, limit ring. DETAILED DESCRIPTION

[0051] The subject matter described herein will now be discussed with reference to example embodiments. It should be understood that the discussion of these embodiments is only to enable those skilled in the art to better understand and implement the subject matter described herein, and the functions and arrangements of the elements discussed may be changed without departing from the scope of protection of the contents of this specification. Each example may omit, replace or add various processes or components as needed. In addition, the features described relative to some examples may also be combined in other examples.

[0052] See also Figure 1 , Figure 2 and Figure 5The present invention discloses a coal bunker hydraulic cleaning device, which is applied to a coal bunker 100, and comprises a hollow drum 200, a rotation drive unit 300, a lifting drive unit 400, a supporting unit 500 and a hydraulic cleaning unit 600; the hollow drum 200 is vertically rotatably installed in the coal bunker 100, and a closing member 210 that can be opened and closed is provided on one side of the hollow drum 200; the rotation drive unit 300 is arranged at the top of the coal bunker 100, and is used to drive the hollow drum 200 to rotate circumferentially; the lifting drive unit 400 is lifted and lowered in the hollow drum 200; one end of the supporting unit 500 is rotatably installed on the lifting drive unit 400; the hydraulic cleaning unit 600 is installed at one end of the supporting unit 500 away from the lifting drive unit 400, and the hydraulic cleaning unit 600 comprises a mounting platform 610 fixed on the supporting unit 500, and a hydraulic flushing member and a scraping member are provided on the mounting platform 610;

[0053] The closing piece 210 is opened, and the supporting unit 500 flips from the inside of the hollow drum 200 to a horizontal state and is supported on the inner wall of the coal bin 100. The rotary drive unit 300 drives the hollow drum 200 to rotate circumferentially, driving the hydraulic cleaning unit 600 to perform synchronous circumferential cleaning. The scale on the inner wall of the coal bin 100 is flushed by the hydraulic flushing part, and the scraping part scrapes off the residual scale. The lifting drive unit 400 drives the hydraulic cleaning unit 600 to move downward layer by layer to clean the inner wall of the coal bin 100 layer by layer.

[0054] Specifically, when it is necessary to clean the inside of the coal bunker 100, the remaining coal in the coal bunker 100 is discharged, the closing member 210 is opened, and the top support unit 500 is rotated out of the hollow drum 200 to a horizontal state, and the top support unit 500 contacts the inner wall of the coal bunker 100, so that the hydraulic cleaning unit 600 always maintains a constant distance from the inner wall of the coal bunker 100, thereby ensuring the subsequent cleaning effect; the hydraulic flushing member is turned on to flush the inner wall of the coal bunker 100, and the scraping member is used to scrape off the residual stubborn scale adhering to the inner wall of the coal bunker 100; the hollow drum 200 is driven to rotate at a uniform speed in the circumferential direction by the rotary drive unit 300, thereby driving the hydraulic cleaning unit 600 at the end of the top support unit 500 to rotate synchronously in the circumferential direction, thereby realizing the circumferential cleaning of the inner wall of the coal bunker 100; the lifting drive unit 400 is used to drive the top support unit 500 to move in the vertical direction, thereby realizing the height adjustment of the hydraulic cleaning unit 600, so as to clean the coal bunker 100 layer by layer;

[0055] It should be noted that the supporting unit 500 can move downward for a certain distance after each cleaning cycle of the hydraulic cleaning unit 600, so that the hydraulic cleaning unit 600 can clean the coal bin 100 layer by layer; it can also descend at a uniform speed while the hydraulic cleaning unit 600 rotates circumferentially, so that the hydraulic cleaning unit 600 can perform spiral cleaning of the coal bin 100; there is no restriction on the specific cleaning path, as long as it can completely cover the inner wall of the coal bin 100.

[0056] It is worth noting that the present invention can perform circumferential full coverage cleaning on the inner wall of the coal bin 100 to avoid residual cleaning dead corners. The arranged top support unit 500 can ensure that the hydraulic cleaning unit 600 always maintains a constant distance from the inner wall of the coal bin 100, and can also be adaptively adjusted according to the contour change of the conical section at the lower end of the coal bin 100, so that the lower end conical section of the coal bin 100 can be targetedly cleaned, and the stubborn scale adhering to the surface of the conical section can be effectively removed, thereby improving the cleaning effect.

[0057] In one embodiment, see Figure 6 and Figure 7 , considering that the cleaning device is arranged as a whole in the coal bunker 100, when the coal bunker 100 does not need to be cleaned, it is necessary to seal the components in the hollow drum 200 to prevent coal from entering the hollow drum 200. To this end, the closure 210 includes an annular cavity 211 opened in the inner wall of the hollow drum 200, a through-hole communicating with the annular cavity 211 is opened on one side of the hollow drum 200, and an annular sealing plate 212 adapted to the through-hole is movably embedded in the annular cavity 211, an opening and closing motor 213 is installed on the inner wall of the hollow drum 200, an opening and closing gear 214 is installed at the output end of the opening and closing motor 213, and an opening and closing gear ring 215 meshing with the opening and closing gear 214 is arranged on the annular sealing plate 212;

[0058] Specifically, in the initial state, the supporting unit 500 and the hydraulic clearing unit 600 are integrally rotated and folded into the hollow drum 200, and the annular sealing plate 212 closes the through opening, thereby preventing external coal from entering the hollow drum 200;

[0059] When the coal bin 100 needs to be cleared, after the accumulated coal in the coal bin 100 is discharged, the opening and closing motor 213 drives the opening and closing gear 214 to rotate, and the meshing transmission of the opening and closing gear 214 and the opening and closing gear ring 215 drives the annular sealing plate 212 to rotate circumferentially along the annular cavity 211, so that the annular sealing plate 212 is retracted into the annular cavity 211, and the through-hole is opened, so that the supporting unit 500 and the hydraulic clearing unit 600 in the hollow drum 200 can be flipped out from the through-hole.

[0060] It should be noted that in order to ensure that the top support unit 500 and the hydraulic bin clearing unit 600 can be folded or moved out smoothly, the opening width of the through-port should be greater than the overall width of the top support unit 500 and the hydraulic bin clearing unit 600, and the vertical opening length of the through-port should be greater than the maximum extension length of the top support unit 500 and the hydraulic bin clearing unit 600; in addition, in order to make the height adjustment range of the top support unit 500 and the hydraulic bin clearing unit 600 completely cover the corresponding area of ​​the coal bin 100 (mainly the lower end conical section area), the vertical distribution range of the through-port should be greater than the corresponding area of ​​the coal bin 100.

[0061] For further information, see Figure 2 and Figure 3 The rotary drive unit 300 includes a rotary motor 310 fixedly mounted on the top of the coal bunker 100, a rotary gear 320 is mounted on the output end of the rotary motor 310, and a rotary gear disc 330 meshing with the rotary gear 320 is disposed on the upper end of the hollow drum 200;

[0062] The rotating gear 320 is driven to rotate by the rotating motor 310 , and the meshing transmission between the rotating gear 320 and the rotating toothed disc 330 can drive the hollow drum 200 to rotate circumferentially, so as to realize the circumferential cleaning process of the inner wall of the coal bunker 100 by the hydraulic cleaning unit 600 .

[0063] For further information, see Figure 5 and Figure 8 The lifting drive unit 400 includes a lifting rail 410 vertically fixed in the hollow drum 200 and a lifting screw 430 vertically rotatably installed in the hollow drum 200. A lifting platform 420 is slidably arranged on the lifting rail 410, and the lifting platform 420 is threadedly connected with the lifting screw 430. A lifting motor (not shown in the figure) for driving the lifting screw 430 is installed at the bottom of the hollow drum 200, and the supporting unit 500 is rotatably installed on the lifting platform 420.

[0064] Specifically, after the closing piece 210 opens the through-opening, the top support unit 500 is flipped out from the hollow drum 200 until the top support unit 500 is in a horizontal position, and the lifting motor drives the lifting screw 430 to rotate, thereby driving the lifting platform 420 to slide vertically along the lifting slide rail 410, and then driving the top support unit 500 and the hydraulic cleaning unit 600 to adjust the height, so as to clean the coal bin 100 layer by layer.

[0065] See also Figure 8 The supporting unit 500 includes a flip plate 510 and a telescopic plate 530. One end of the flip plate 510 is rotatably mounted on the lifting platform 420. A flip motor 520 for driving the flip plate 510 is fixedly mounted on the lifting platform 420. The telescopic plate 530 is slidably embedded in the flip plate 510. A guide rod 540 in the flip plate 510 is slidably inserted into the telescopic plate 530. A supporting spring 550 is movably sleeved on the guide rod 540. The mounting platform 610 is mounted on one end of the telescopic plate 530 away from the flip plate 510.

[0066] Specifically, when the through-opening is opened, the lifting platform 420 is adjusted to the corresponding height, and the flip plate 510 is driven to rotate by the flip motor 520, so that the flip plate 510 can be turned inside out from the hollow drum 200 until the flip plate 510 and the telescopic plate 530 are flipped to a horizontal state. At this time, the telescopic plate 530 extends toward the end away from the flip plate 510 under the elastic force of the supporting spring 550 until the extended end of the telescopic plate 530 contacts the inner wall of the coal bin 100. During the lifting and lowering movement of the supporting unit 500 and the hydraulic cleaning unit 600 driven by the lifting drive unit 400, no matter how the radius of the cleaning position of the coal bin 100 changes, the distance between the hydraulic cleaning unit 600 and the inner wall of the coal bin 100 can be guaranteed to be constant, especially for the cleaning treatment of the conical section area at the lower end of the coal bin 100, thereby ensuring a stable cleaning effect.

[0067] In addition, considering that the extension plate 530 will generate friction with the coal bunker 100 during the circumferential rotation of the supporting unit 500 relative to the coal bunker 100, it is easy to cause wear of the extension plate 530 and the coal bunker 100, and at the same time increase the resistance of the supporting unit 500 during the circumferential rotation; for this reason, please refer to Figure 8 The end of the telescopic plate 530 away from the flip plate 510 is rotatably mounted with a roller 560 that is adapted to roll with the inner wall of the coal bin 100; when the telescopic plate 530 is in a horizontal state, the axis of the roller 560 is in a vertical state; in this way, when the telescopic plate 530 rotates circumferentially relative to the coal bin 100, the roller 560 can synchronously roll circumferentially along the inner wall of the coal bin 100, thereby avoiding direct friction between the telescopic plate 530 and the coal bin 100, effectively reducing the wear of the telescopic plate 530 and the coal bin 100, and at the same time greatly reducing the resistance of the telescopic plate 530 when rotating.

[0068] In yet another embodiment, see Fig. 9 and Fig.10 The hydraulic flushing part includes a main shaft 620 rotatably mounted on a mounting platform 610, a driving motor 630 for driving the main shaft 620 is mounted at one end of the mounting platform 610, a deflection shaft 640 is arranged on the main shaft 620, the axis of the deflection shaft 640 is cross-distributed with the axis of the main shaft 620, a deflection disk 641 is arranged at the center of the deflection shaft 640, and a high-pressure nozzle 670 is detachably mounted on the upper end of the deflection disk 641 through a connecting plate 644; a limiting ball 643 is arranged at the lower end of the deflection disk 641, and an arc-shaped limiting groove 642 adapted to the limiting ball 643 is arranged on the mounting platform 610;

[0069] Specifically, the main shaft 620 is driven to rotate by the driving motor 630. Since the center of the deflection shaft 640 intersects with the axis of the main shaft 620, the deflection shaft 640 takes its center as the base point, and the two ends of the deflection shaft 640 respectively rotate circumferentially around the axis of the main shaft 620, thereby driving the entire deflection disk 641 to swing back and forth, and the limiting ball 643 at its lower end moves back and forth in the arc-shaped limiting groove 642 to realize the circumferential reciprocating swinging action of the high-pressure nozzle 670, so that the cleaning liquid sprayed by the high-pressure nozzle 670 can impact the inner wall of the coal bin 100 at different angles, effectively improving the flushing effect, especially for some stubborn scaling, which needs to be repeatedly flushed at different angles to make it detached from the inner wall of the coal bin 100.

[0070] See also Fig. 9 and Fig.10 The scraper comprises a sleeve plate 650 fixed on the mounting platform 610, a reciprocating slide rod 651 is horizontally slidably sleeved on the sleeve plate 650, a vertical plate 652 is arranged in the middle of the reciprocating slide rod 651, a through slot 653 is vertically opened in the vertical plate 652, an eccentric rod 654 is connected to the end of the main shaft 620 facing the reciprocating slide rod 651, and a lever 655 adapted to the through slot 653 is arranged at the end of the eccentric rod 654 away from the main shaft 620; a slide table 656 is fixed at the lower end of the vertical plate 652, and a scraper blade 660 is installed on the slide table 656;

[0071] Specifically, while the main shaft 620 rotates and drives the high-pressure nozzle 670 to swing back and forth to spray the cleaning liquid, the main shaft 620 drives the lever 655 at the end of the eccentric rod 654 to rotate circumferentially around the main shaft 620, and the lever 655 moves in the through groove 653, thereby driving the vertical plate 652 and the reciprocating slide rod 651 to reciprocate left and right, and then driving the scraper 660 on the slide 656 to reciprocate, so as to achieve reciprocating removal of scale on the inner wall of the coal bin 100.

[0072] Furthermore, considering that the thickness of the scale attached to different positions of the inner wall of the coal bunker 100 is different, and some stubborn scale is difficult to remove at one time, when the scraper 660 moves to one side and fails to completely remove the scale, the scraper 660 is easily interfered by the residual scale during the return process, which may cause the scraper 660 to deform and twist. For this reason, please refer to Fig.10 , a plurality of telescopic rods 657 are slidably provided on the slide 656, a mounting plate 658 is fixed to one end of the telescopic rod 657 away from the slide 656, the scraper 660 is mounted on the mounting plate 658, a compression spring 659 is movably sleeved on the telescopic rod 657, and a limit block (not shown in the figure) is provided at one end of the telescopic rod 657 away from the mounting plate 658;

[0073] Under the elastic force of the compression spring 659, the scraper blade 660 can always fit tightly against the inner wall of the coal bin 100, thereby ensuring that the scraper blade 660 can smoothly scrape off the scale. When there is still residual scale after the scraper blade 660 has a scraping action once, during the process of returning to the reset state, the compression spring 659 has a certain expansion and contraction space, so that the scraper blade 660 can pass over the surface of the residual scale, and the telescopic rod 657 also undergoes adaptive contraction until the scraper blade 660 is reset. The compression spring 659 presses the scraper blade 660 against the inner wall of the coal bin 100 again, which can ensure the stability of the scraping effect and effectively avoid damage to the scraper blade 660.

[0074] Regarding the supply of cleaning fluid to the hydraulic flushing parts, considering that the hydraulic flushing parts are directly connected to the high-pressure nozzle 670 only through a conventional infusion tube during the rotation of the hollow drum 200, the infusion tube will gradually twist and knot, which will not only affect the stable delivery of the cleaning fluid, but also easily cause the infusion tube to break. For this reason, please refer to Figure 5 , Figure 8 and Fig.11 , and also includes a hydraulic transmission unit 700, the hydraulic transmission unit 700 includes a hollow sleeve 710 fixed to the top of the coal bunker 100 and a connector 730 fixed on the telescopic plate 530, the hollow sleeve 710 is rotatably connected to the hollow drum 200, a sealing ring 790 is installed at the rotatable connection between the hollow sleeve 710 and the hollow drum 200, and a liquid inlet pipe 720 is connected to one side of the hollow sleeve 710; the hollow drum 200 is divided into a chamber 770 by a partition 760, and a plurality of through holes 780 communicating with the inside of the hollow sleeve 710 are opened on the side wall of the chamber 770; the two ends of the connector 730 are respectively connected with a first corrugated hose 740 and a second corrugated hose 750, the end of the second corrugated hose 750 away from the connector 730 is connected to the high-pressure nozzle 670, and the end of the first corrugated hose 740 away from the connector 730 passes through the inside of the hollow drum 200 and communicates with the chamber 770;

[0075] Specifically, the cleaning liquid is pumped into the hollow sleeve 710 through the liquid inlet pipe 720 by an external hydraulic device, and the cleaning liquid passes through the through hole 780, the chamber 770, the first corrugated hose 740, the connecting head 730 and the second corrugated hose 750 in sequence, and finally reaches the high-pressure nozzle 670 for spraying out; during the circumferential rotation of the hollow drum 200, the through hole 780 can always connect the hollow sleeve 710 and the chamber 770, thereby ensuring the continuous and stable delivery of the cleaning liquid, and will not cause the first corrugated hose 740 and the second corrugated hose 750 to be kinked.

[0076] In another embodiment, considering that the discharge of residual coal in the coal bunker 100 and the discharge of scale during the cleaning process may cause the coal or scale to form an arch at the discharge port at the lower end of the coal bunker 100 to block the bunker, for this purpose, please refer to Figure 2 and Figure 4 , further comprising an arch breaking unit 800, the arch breaking unit 800 comprising a fixed disk 810 and a flip disk 820, the fixed disk 810 being fixedly mounted at the lower end of the hollow drum 200, a flexible column 830 being connected between the fixed disk 810 and the flip disk 820, a tapered rod 840 being provided at the lower end surface of the flip disk 820, a spiral sheet 850 being provided on the tapered rod 840, a flip ball 870 being fixed to one side of the flip disk 820 via a connecting rod 860, a limiting ring 880 matching the flip ball 870 being provided on the inner wall of the coal bunker 100, and the height of the limiting ring 880 being higher than the flip disk 820;

[0077] Specifically, the flip ball 870 is placed on the upper end surface of the limiting ring 880. Since the height of the limiting ring 880 is higher than that of the flip disk 820, under the action of the connecting rod 860, the flip disk 820 is tilted downward on the side away from the connecting rod 860, and the flexible column 830 also undergoes adaptive bending, so that the entire spiral sheet 850 is in an inclined state; when the fixed plate 810 rotates circumferentially following the hollow drum 200, the flip ball 870 also moves circumferentially along the upper end surface of the limiting ring 880, so that the spiral sheet 850 can deflect in different directions of the coal bin while rotating circumferentially, thereby being able to guide and clear the coal or scale at the discharge port of the coal bin 100, destroy the arched state of the coal or scale, and allow the coal or scale to be discharged smoothly, thereby improving the discharge efficiency.

[0078] It should be noted that the flexible column 830 can be adaptively bent according to the deflection angle of the flip plate 820, and its material is not limited, and it can be a soft material such as rubber.

[0079] The specific implementation methods of this embodiment are described above, but this embodiment is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Ordinary technicians in this field can also make many forms inspired by this embodiment, all of which are within the protection of this embodiment.

Claims

1. A coal bunker hydraulic cleaning device, applied to a coal bunker (100), characterized in that: include: A hollow rotating drum (200) is installed in a vertically rotatable manner in the coal bunker (100); A rotary drive unit (300) disposed on the top of the coal bunker (100); A lifting drive unit (400) which is liftably disposed in the hollow drum (200); A supporting unit (500), one end of which is rotatably mounted on the lifting drive unit (400); A hydraulic bin cleaning unit (600) is mounted on one end of the top support unit (500) away from the lifting drive unit (400), the hydraulic bin cleaning unit (600) comprising a mounting platform (610) fixed on the top support unit (500), the mounting platform (610) being provided with a hydraulic flushing component; the hydraulic flushing component comprising a main shaft (620) rotatably mounted on the mounting platform (610), a driving motor (630) for driving the main shaft (620) being mounted on one end of the mounting platform (610), the main shaft (620) being provided with a driving motor (630) for driving the main shaft (620), and the main shaft (620) being provided with a driving motor (630) for driving the main shaft (620). A deflection shaft (640) is arranged on the shaft (620), the axis of the deflection shaft (640) and the axis of the main shaft (620) being arranged crosswise, a deflection disc (641) is arranged at the center of the deflection shaft (640), a high-pressure nozzle (670) is detachably mounted on the upper end of the deflection disc (641) via a connecting plate (644); a limiting ball (643) is arranged at the lower end of the deflection disc (641), and an arc-shaped limiting groove (642) adapted to the limiting ball (643) is arranged on the mounting platform (610); The mounting platform (610) is also provided with a scraper, the scraper comprising a sleeve (650) fixed on the mounting platform (610), a reciprocating slide rod (651) being horizontally slidably sleeved on the sleeve (650), a vertical plate (652) being provided in the middle of the reciprocating slide rod (651), a slide platform (656) being fixed at the lower end of the vertical plate (652), and a scraper blade (660) being installed on the slide platform (656); A through slot (653) is vertically provided in the vertical plate (652); an eccentric rod (654) is connected to one end of the main shaft (620) facing the reciprocating slide rod (651); and a lever (655) adapted to the through slot (653) is provided at one end of the eccentric rod (654) away from the main shaft (620); A plurality of telescopic rods (657) are slidably provided on the slide (656), a mounting plate (658) is fixed to one end of the telescopic rod (657) away from the slide (656), the scraper (660) is mounted on the mounting plate (658), a compression spring (659) is provided on a movable sleeve on the telescopic rod (657), and a limit block is provided on one end of the telescopic rod (657) away from the mounting plate (658); The invention also comprises an arch-breaking unit (800), the arch-breaking unit (800) comprising a fixed disk (810) and a flip disk (820), the fixed disk (810) being fixedly mounted on the lower end of the hollow drum (200), a flexible column (830) being connected between the fixed disk (810) and the flip disk (820), a conical rod (840) being provided on the lower end surface of the flip disk (820), and a spiral sheet (850) being provided on the conical rod (840); a flip ball (870) being fixed on one side of the flip disk (820) via a connecting rod (860), a limiting ring (880) being adapted to the flip ball (870) being provided on the inner wall of the coal bin (100), and the limiting ring (880) being higher than the flip disk (820).

2. A coal bunker hydraulic cleaning device according to claim 1, characterized in that: A closure member (210) that can be opened and closed is provided on one side of the hollow rotating cylinder (200), and the closure member (210) includes an annular cavity (211) formed in the inner wall of the hollow rotating cylinder (200). A through hole communicating with the annular cavity (211) is formed on one side of the hollow rotating cylinder (200), and an annular sealing plate (212) adapted to the through hole is movably embedded in the annular cavity (211). An opening and closing motor (213) is installed on the inner wall of the hollow rotating cylinder (200), and an opening and closing gear (214) is installed at the output end of the opening and closing motor (213). An opening and closing gear ring (215) meshing with the opening and closing gear (214) is provided on the annular sealing plate (212).

3. A coal bunker hydraulic cleaning device according to claim 2, characterized in that: The rotary drive unit (300) comprises a rotary motor (310) fixedly mounted on the top of the coal bunker (100), a rotary gear (320) being mounted on the output end of the rotary motor (310), and a rotary gear disk (330) meshing with the rotary gear (320) being disposed on the upper end of the hollow rotary drum (200).

4. A coal bunker hydraulic cleaning device according to claim 1, characterized in that: The lifting drive unit (400) comprises a lifting slide rail (410) vertically fixed in the hollow rotating cylinder (200) and a lifting screw rod (430) vertically rotatably installed in the hollow rotating cylinder (200); a lifting platform (420) is slidably arranged on the lifting slide rail (410); the lifting platform (420) is threadedly connected to the lifting screw rod (430); a lifting motor for driving the lifting screw rod (430) is installed at the bottom of the hollow rotating cylinder (200); and the supporting unit (500) is rotatably installed on the lifting platform (420).

5. A coal bunker hydraulic cleaning device according to claim 4, characterized in that: The supporting unit (500) comprises a flip plate (510) and a telescopic plate (530); one end of the flip plate (510) is rotatably mounted on a lifting platform (420); a flip motor (520) for driving the flip plate (510) is fixedly mounted on the lifting platform (420); The telescopic plate (530) is slidably embedded in the flip plate (510), and a guide rod (540) in the telescopic plate (530) is slidably inserted into the flip plate (510). A supporting spring (550) is movably sleeved on the guide rod (540), and the mounting platform (610) is mounted on one end of the telescopic plate (530) away from the flip plate (510).

6. A coal bunker hydraulic cleaning device according to claim 5, characterized in that: A roller (560) that is rotatably mounted on one end of the telescopic plate (530) away from the flip plate (510) and that is adapted to roll with the inner wall of the coal bin (100); when the telescopic plate (530) is in a horizontal state, the axis of the roller (560) is in a vertical state.

7. A coal bunker hydraulic cleaning device according to claim 1, characterized in that: It also includes a hydraulic transmission unit (700), the hydraulic transmission unit (700) including a hollow sleeve (710) fixed to the top of the coal bunker (100) and a connector (730) fixed to the telescopic plate (530), the hollow sleeve (710) being rotatably connected to the hollow rotating cylinder (200), a sealing ring (790) being installed at the rotatable connection between the hollow sleeve (710) and the hollow rotating cylinder (200), and a liquid inlet pipe (720) being connected to one side of the hollow sleeve (710); the hollow rotating cylinder (200) is divided into a chamber (770) by a partition (760), and a plurality of through holes (780) communicating with the interior of the hollow sleeve (710) are provided on a side wall of the chamber (770); The two ends of the connecting head (730) are respectively connected to a first corrugated hose (740) and a second corrugated hose (750); the end of the second corrugated hose (750) away from the connecting head (730) is connected to the high-pressure nozzle (670); the end of the first corrugated hose (740) away from the connecting head (730) passes through the interior of the hollow drum (200) and is connected to the chamber (770).

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