Coal-fired boiler hearth ash deposition cleaning equipment

Abstract

The invention discloses coal-fired boiler hearth accumulated ash cleaning equipment, and relates to the technical field of coal-fired boiler cleaning equipment.The coal-fired boiler hearth accumulated ash cleaning equipment comprises a main support, an auxiliary support and a cleaning mechanism, the auxiliary support is used for supporting the cleaning mechanism, and the cleaning mechanism comprises a wall breaking jacking mechanism, a rotary scraping mechanism and a suction pipeline mechanism; the wall breaking jacking and pressing mechanism comprises two U-shaped jacking and pressing frames which are symmetrically distributed, and the rotary scraping mechanism is arranged on the inner sides of the two U-shaped jacking and pressing frames in a matched mode; the suction pipeline mechanism is connected with one of the U-shaped jacking frames in a matched mode. According to the device, the symmetrically arranged U-shaped jacking frames abut against the inner wall of the boiler, a coking body fixedly bonded to the inner wall of the boiler is cut into cracks, the rotary column driven by the motor drives the scraper to scrape and peel off the coking body, cleaning is achieved, the peeled coking body and dust are sucked away through the suction pipeline mechanism, the labor intensity of workers is reduced, and the working efficiency is improved. The cleaning efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of coal-fired boiler cleaning equipment, and in particular to coal-fired boiler furnace dust cleaning equipment. Background Art

[0002] The furnace of a coal-fired boiler is where coal is burned. The ash produced is also inside the furnace and needs to be handled regularly. In addition, due to the raw materials contained in the coal and the influence of the combustion conditions, coking will occur on the inner wall of the furnace, which will destroy the normal combustion conditions. Therefore, it also needs to be cleaned, especially for large coal-fired boilers in thermal power plants. Generally, they need to be shut down and cooled down, and then workers wearing professional equipment enter the furnace of the boiler for cleaning.

[0003] The existing large-scale coal-fired boiler furnace cleaning in thermal power plants mainly relies on workers wearing professional equipment to enter the interior. Ashes can be directly sucked out through negative pressure equipment. The coke bodies fixed to the inner wall of the furnace are manually cleaned and peeled off by tools such as decoking hammers, decoking shovels, decoking hooks, steel ball mill decoking, and rotary decoking devices, and then sucked away by negative pressure.

[0004] The shortcomings of the existing coal-fired boiler furnace cleaning are that when the existing coal-fired boiler furnace is cleaned, especially for the coal-fired boilers of large thermal power plants, it depends on manual entry into the boiler and then cleaning with tools. Although the ash can be directly sucked away by negative pressure, the coke solidified on the inner wall of the boiler can generally only be hit by tools such as a decoking hammer and a decoking shovel to make it fall off. However, the use of the above-mentioned tools completely relies on manual force, which is labor-intensive and inefficient. In addition, the coke cleaned from the inner wall of the boiler by the decoking hammer and the decoking shovel may still be in relatively large blocks and need to be further broken, otherwise it is difficult to be sucked away by negative pressure, which results in an overall poor cleaning effect. Summary of the invention

[0005] The purpose of the present invention is to provide a coal-fired boiler furnace ash cleaning device to solve the technical problem that the coal-fired boiler furnace cleaning device in the prior art is not convenient for cleaning the coke body generated on the inner wall of the boiler during the ash treatment process, resulting in an overall poor cleaning effect.

[0006] The technical problem to be solved by the present invention can be achieved by the following technical solutions:

[0007] A coal-fired boiler furnace dust cleaning device comprises a main support, a secondary support and a cleaning mechanism, wherein the secondary support is used to support the cleaning mechanism, and the cleaning mechanism comprises:

[0008] A wall-breaking pressing mechanism and a rotary scraping mechanism, wherein the wall-breaking pressing mechanism comprises two symmetrically distributed U-shaped pressing frames, the two U-shaped pressing frames are fixedly connected by a scissor-shaped connecting rod, and the rotary scraping mechanism is cooperatively arranged on the inner sides of the two U-shaped pressing frames;

[0009] A suction pipeline mechanism is installed on the auxiliary bracket, and the suction pipeline mechanism is connected with one of the U-shaped top pressure frames. A linkage crushing mechanism connected with the rotating scraping mechanism is arranged inside the suction pipeline mechanism, and a reciprocating motion mechanism connected with the linkage crushing mechanism is arranged between the auxiliary bracket and the main bracket.

[0010] As a further solution of the present invention: the rotary scraping mechanism includes a rotating column and a scraper, the rotating column is rotatably connected to the auxiliary bracket, and a plurality of scrapers are provided and fixedly distributed circumferentially on the rotating column.

[0011] As a further solution of the present invention: the wall-breaking top pressure mechanism also includes an auxiliary ejection impact mechanism, which includes an impact rod, a linkage slide frame and a support spring. The two U-shaped top pressure frames are evenly distributed on the side away from the sub-bracket with multiple slide grooves, and an impact rod is slidably inserted in each slide groove, and one end of the impact rod is on the outside of the slide groove, and the other end is connected to the corresponding slide groove through a support spring. Linkage slide frames are slidably arranged on the outside of the two U-shaped top pressure frames, and each of the impact rods is fixedly connected to the corresponding linkage slide frame, and each of the impact rods is fixedly connected to the corresponding linkage slide frame, and the rotating scraping mechanism is coaxially rotated and provided with a linkage mechanism for driving the linkage slide frame to slide.

[0012] As a further solution of the present invention: the linkage mechanism includes a double-headed cam member and a linkage baffle, the double-headed cam member rotates coaxially with the rotary scraping mechanism, the linkage baffle is provided with two pieces, and are respectively arranged on the outer sides of the corresponding U-shaped top pressure frames, a first elastic telescopic rod is connected between the linkage baffle and the corresponding U-shaped top pressure frame, the linkage baffle and the corresponding linkage sliding frame are fixedly connected with mutually matching inclined extrusion blocks, and a transition telescopic top pressure mechanism is provided between the double-headed cam member and the linkage baffle.

[0013] As a further solution of the present invention: the transition telescopic pressing mechanism includes a transition baffle and a second elastic telescopic rod, two transition baffles are provided, and are centrally symmetrically distributed on both sides of the double-headed cam member, the transition baffle is connected to the auxiliary bracket through the second elastic telescopic rod, and the transition baffle also corresponds to the linkage baffle.

[0014] As a further solution of the present invention: the double-headed cam member includes a wheel body and a convex head, the wheel body is coaxially fixedly connected to the rotating scraping mechanism, and two convex heads are provided and symmetrically fixedly distributed on both sides of the wheel body.

[0015] As a further solution of the present invention: the suction pipeline mechanism includes a fixed inclined conduit and a suction hose, the fixed inclined conduit is fixedly connected to one side of the auxiliary bracket, one end of the fixed inclined conduit is docked with one of the U-shaped top pressure frames, and the other end is connected to the suction hose.

[0016] As a further solution of the present invention: the fixed inclined conduit is slidably matched with the corresponding U-shaped top pressure frame, a first guide rod is fixedly connected to the outer wall of the fixed inclined conduit, a first guide sleeve is fixedly connected to the outer wall of the U-shaped top pressure frame corresponding to the fixed inclined conduit, and the first guide rod slides through the first guide sleeve, and a first limit spring is connected between the first guide rod and the first guide sleeve.

[0017] As a further solution of the present invention: the linked crushing mechanism includes a crushing column and a convex tooth, the crushing column is rotatably connected to the inside of the fixed inclined tube, the convex tooth is fixedly arranged on the inner wall of one side of the fixed inclined tube, and the convex tooth cooperates with the crushing column, and a driven wheel coaxially fixedly connected to the crushing column is arranged on the outer side of the fixed inclined tube, the rotating scraping mechanism is coaxially fixedly connected to a driving wheel, and a transmission belt is cooperated between the driving wheel and the driven wheel.

[0018] As a further solution of the present invention: the reciprocating motion mechanism includes a limit plate, an auxiliary cam, a second guide rod and a second guide sleeve, the auxiliary cam is arranged on the outside of the fixed inclined guide tube, and the auxiliary cam is coaxially fixedly connected to the rolling column, the limit plate is cooperated on one side of the auxiliary cam, the limit plate is fixedly connected to the main bracket, the second guide rod is fixedly connected to one side of the sub-bracket, the second guide sleeve is fixedly connected to one side of the main bracket, and the second guide rod slides through the second guide sleeve, and a second limit spring is connected between the second guide rod and the second guide sleeve.

[0019] Beneficial effects of the present invention:

[0020] 1. The present invention uses a symmetrically arranged U-shaped top pressure frame to contact the inner wall of the boiler, cuts cracks in the coke body fixed and bonded to the inner wall of the boiler, and drives a scraper to scrape off the peeled coke body through a rotating column driven by a motor to achieve cleaning, and sucks away the peeled coke body and dust through a suction pipeline mechanism, thereby reducing manual labor intensity and improving cleaning efficiency.

[0021] 2. During the rotation process of the rotating column of the rotary scraping mechanism of the present invention, it drives the coaxially arranged double-headed cam member to rotate synchronously. During the rotation process of the double-headed cam member, the raised end portion continuously acts on the interlocking baffle plate, so that the interlocking baffle plate drives the impact rod elastically distributed in the U-shaped top pressure frame to first store elastic force, and then releases it to impact the coke body on the inner wall of the boiler, thereby assisting in its rupture. At the same time, the rotating column of the rotary scraping mechanism also drives the auxiliary cam set to rotate through the transmission belt, and the auxiliary cam continuously presses the limit plate. Since the limit plate is fixed relative to the main bracket, and the main bracket and the auxiliary bracket can slide elastically, it is convenient to make the U-shaped top pressure frame pressing the coke body to perform a certain degree of reciprocating motion, thereby facilitating the cracking of the attached coke body, thereby facilitating the improvement of the peeling treatment effect.

[0022] 3. During the rotation of the rotating column of the rotary scraping mechanism of the present invention, the rolling column distributed in the fixed inclined conduit of the suction pipeline mechanism is also driven to rotate by the transmission belt, so that the rolling column can roll the peeled coke body to break it up and facilitate negative pressure suction. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 It is a partial structural schematic diagram of the U-shaped top pressure frame and the fixed inclined guide tube in the present invention;

[0026] Figure 3 yes Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0027] Figure 4 It is a top view structural schematic diagram of the U-shaped top pressure frame and the linkage baffle in the present invention;

[0028] Figure 5 It is a rear view structural schematic diagram of the linkage baffle, transition baffle and wheel body in the present invention;

[0029] Figure 6 It is a schematic diagram of the state in which the linkage baffle moves when the rotating wheel body in the present invention squeezes the transition baffle through the convex head;

[0030] Figure 7 It is a rear view structural schematic diagram of the auxiliary bracket and the main bracket in the present invention;

[0031] Figure 8 It is a schematic diagram of the use state of the present invention in which the U-shaped top pressure frame acts on the inner wall of the boiler.

[0032] In the figure: 1. main bracket; 2. auxiliary bracket; 3. second guide rod; 4. second limit spring; 5. second guide sleeve; 6. rotating column; 7. scraper; 8. U-shaped top pressure frame; 9. fixed inclined guide tube; 10. suction hose; 11. impact rod; 12. linkage slide frame; 13. strip slide; 14. support spring; 15. slide groove; 16. rolling column; 17. convex tooth; 18. first guide rod; 19. first limit spring; 20. first guide sleeve; 21. driving wheel; 22. wheel body; 23. convex head; 24. transition baffle; 25. linkage baffle; 26. first elastic telescopic rod; 27. inclined extrusion block; 28. second elastic telescopic rod; 29. ​​transmission belt; 30. auxiliary cam; 31. limit plate. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] In the description of the present invention, it should be noted that the terms "upper", "lower", "one side", "one end", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention; in addition, unless otherwise clearly specified and limited, the terms "installation", "setting", and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] like Figure 1-Figure 8As shown, the coal-fired boiler furnace ash cleaning equipment is aimed at large coal-fired boilers used in thermal power plants, and includes a main bracket 1, a sub-bracket 2 and a cleaning mechanism. The main bracket 1 is convenient for the operator to hold the entire equipment or set up the main bracket 1 on a movable bracket to operate the equipment. The sub-bracket 2 is used to support the cleaning mechanism, and the cleaning mechanism is used to clean the coke body on the inner wall of the boiler. Coke is a common problem of coal-fired boilers. It adheres to the inner wall of the boiler and has a certain thickness. It needs to be cleaned regularly to prevent affecting the combustion condition of the boiler; the cleaning mechanism includes a wall-breaking top-pressing mechanism, a rotary scraping mechanism and a suction pipeline mechanism. The wall-breaking top-pressing mechanism includes two symmetrically distributed U-shaped top-pressing frames 8. The two U-shaped top-pressing frames 8 are fixedly connected by a scissor-shaped connecting rod. The U-shaped top-pressing frame 8 is used to abut against the inner wall of the boiler to cut cracks from the coke body in a local area attached to the inner wall of the boiler. The rotary scraping mechanism is arranged on the inner side of the two U-shaped top-pressing frames 8, and the rotary scraping mechanism is used to scrape off the coke body with the cracks cut out;

[0036] The suction pipeline mechanism is installed on the sub-bracket 2, and the suction pipeline mechanism cooperates with one of the U-shaped top pressure frames 8. The U-shaped top pressure frame 8 is installed on the sub-bracket 2 through the suction pipeline mechanism. The suction pipeline mechanism is connected to the negative pressure device to facilitate the suction and removal of the coke and dust. A linkage crushing mechanism connected to the rotating scraping mechanism is arranged inside the suction pipeline mechanism to further crush the scraped block coke, thereby facilitating recovery; a reciprocating motion mechanism connected to the linkage crushing mechanism is arranged between the sub-bracket 2 and the main bracket 1. During the movement of the linkage crushing mechanism, the reciprocating motion mechanism enables the sub-bracket 2 to drive the U-shaped top pressure frame 8 to reciprocate relative to the main bracket 1, thereby facilitating the U-shaped top pressure frame 8 to further act on the cut-in coke, expand the cut cracks, and help the coke to fall off.

[0037] In some specific embodiments, in combination Figure 2 and Figure 4 As shown, the rotary scraping mechanism includes a rotating column 6 and a scraper 7. The rotating column 6 is rotatably connected to the auxiliary bracket 2 through a rotating shaft, and in order to facilitate the installation of the rotating column 6, the end of the auxiliary bracket 2 is set to be U-shaped. The rotating column 6 is driven to rotate by a motor, and the motor can be directly fixed on the auxiliary bracket 2. A plurality of scrapers 7 are provided and are circumferentially fixedly distributed on the rotating column 6. The rotating column 6 rotates, driving the scrapers 7 to act on the solid coke body attached to the inner wall of the boiler.

[0038] In some specific embodiments, such as Figure 2As shown, the wall-breaking top pressure mechanism also includes an auxiliary ejection impact mechanism, which includes an impact rod 11, a linkage slide frame 12 and a support spring 14. A plurality of slide grooves 15 are evenly distributed on the side of the two U-shaped top pressure frames 8 away from the secondary bracket 2. An impact rod 11 is slidably inserted in each slide groove 15, and one end of the impact rod 11 is located on the outside of the slide groove 15, and is a cone-shaped body, and the other end is connected to the corresponding slide groove 15 through a compressible support spring 14. A linkage slide frame 12 is slidably provided on the outside of the two U-shaped top pressure frames 8, and each impact rod 11 is fixedly connected to the corresponding linkage slide frame 12. For the convenience of connection, a plurality of strip slides 13 corresponding to the slide grooves 15 can be opened on the outer wall of the U-shaped top pressure frame 8, each impact rod 11 is fixedly connected to a protrusion passing through the strip slide 13, and each impact rod 11 is fixedly connected to the corresponding linkage slide frame 12 through the protrusion, and the rotary scraping mechanism is coaxially provided with a linkage mechanism for driving the linkage slide frame 12 to slide.

[0039] During the rotation of the rotary scraping mechanism, the linkage mechanism is relied on to make the linkage slide frame 12 on the U-shaped top pressure frame 8 on both sides slide in the direction of the compression support spring 14, so that all the impact rods 11 first slide into the corresponding slide groove 15 and compress the corresponding support spring 14. After the linkage mechanism rotates to a certain extent along with the rotary scraping mechanism, the action on the linkage slide frame 12 is released. At this time, all the impact rods 11 rebound and hit the coke body on the boiler wall under the action of the rebound force of the corresponding support spring 14, which is convenient for impacting and breaking it, and helping to produce cracks.

[0040] Among them, combined Figures 4 to 6 As shown, the linkage mechanism includes a double-headed cam member and a linkage baffle 25. The double-headed cam member rotates coaxially with the rotary scraping mechanism. If the rotary scraping mechanism adopts a rotating column 6 and a scraper 7, the double-headed cam member is coaxially fixedly connected to the rotating column 6, and the two rotate synchronously. The linkage baffle 25 is provided with two pieces, and they are respectively arranged on the outer sides of the corresponding U-shaped top pressure frame 8. A first elastic telescopic rod 26 is connected between the linkage baffle 25 and the corresponding U-shaped top pressure frame 8. The first elastic telescopic rod 26 includes a telescopic member and a spring connecting the two ends of the telescopic member. The first elastic telescopic rod 26 is retractable. The linkage baffle 25 and the corresponding linkage slide frame 12 are fixedly connected with mutually matching inclined extrusion blocks 27. For details, see the attached Figure 5 A transition telescopic pressing mechanism is provided between the double-headed cam and the linkage baffle 25. The double-headed cam rotates synchronously with the rotary scraper mechanism, and continuously presses the transition telescopic pressing mechanism, so that the transition telescopic pressing mechanism stretches and presses the linkage baffle 25, so that the linkage baffle 25 is pressed by the mutually cooperating inclined surface pressing block 27, so that the linkage slide frame 12 slides in the direction of the compression support spring 14.

[0041] The transition telescopic pressing mechanism includes a transition baffle 24 and a second elastic telescopic rod 28. Two transition baffles 24 are provided and are symmetrically distributed on both sides of the double-headed cam member. The sides of the two transition baffles 24 close to the double-headed cam member are aligned with the axial position of the double-headed cam member. The transition baffle 24 is connected to the auxiliary bracket 2 through the second elastic telescopic rod 28. The second elastic telescopic rod 28 is stretchable. The second elastic telescopic rod 28 has the same structure as the first elastic telescopic rod 26. The transition baffle 24 also corresponds to the linkage baffle 25.

[0042] When the double-headed cam rotates synchronously with the rotary scraper mechanism, Figure 6 From the perspective of counterclockwise rotation, when the two ends of the double-headed cam member respectively abut against the corresponding transition baffles 24, the transition baffles 24 move due to the extrusion effect and move along the extension direction of the second elastic telescopic rod 28, so that the transition baffles 24 on both sides squeeze the corresponding linkage baffles 25. Since the two sides of the transition baffles 24 close to the double-headed cam member are aligned with the axial position of the double-headed cam member, after the double-headed cam member rotates to more than a certain position, the two ends of the double-headed cam member are separated from the corresponding transition baffles 24 respectively, so that the extrusion force on the linkage baffle 25 is instantly released, so that it is convenient for the impact rod 11 to instantly rely on the rebound force of the support spring 14 to eject and impact.

[0043] In some specific embodiments, the double-headed cam member includes a wheel body 22 and a convex head 23 . The wheel body 22 is coaxially fixedly connected to the rotary scraping mechanism. Two convex heads 23 are provided and symmetrically fixedly distributed on both sides of the wheel body 22 .

[0044] In some other specific implementation schemes, the suction pipeline mechanism includes a fixed inclined conduit 9 and a suction hose 10. The fixed inclined conduit 9 is fixedly connected to one side of the auxiliary bracket 2. One end of the fixed inclined conduit 9 is docked with one of the U-shaped top pressure frames 8, and the other end is connected to the suction hose 10. The suction hose 10 is externally connected to a negative pressure power source. Here, the side wall of the suction hose 10 has a certain deformation resistance, and a metal braided body is provided in its wall layer to prevent the negative pressure from directly concave and closing. When the inner wall of the boiler is processed, the fixed inclined conduit 9 and the docked U-shaped top pressure frame 8 are always kept on the lower side, as shown in the specific example. Figure 8 As shown, it is easy to ensure that the coke bodies that have fallen down fall into the fixed inclined conduit 9 and are then sucked away and collected by the suction hose 10, and the suction hose 10 can also suck up the dust that is raised.

[0045] In addition, in order to facilitate the cutting out of the coke body on the inner wall of the boiler by the U-shaped top pressure frame 8, and then the peeling treatment by the rotary scraping mechanism, such as Figure 2As shown, the fixed inclined guide tube 9 is slidably matched with the corresponding U-shaped top pressure frame 8, and the end of the fixed inclined guide tube 9 close to the U-shaped top pressure frame 8 is a U-shaped body, and cooperates to wrap the U-shaped top pressure frame 8, and a first guide rod 18 is fixedly connected to the outer wall of the fixed inclined guide tube 9, and a first guide sleeve 20 is fixedly connected to the outer wall of the U-shaped top pressure frame 8 corresponding to the fixed inclined guide tube 9, and the first guide rod 18 slides through the first guide sleeve 20, and a compressible first limit spring 19 is connected between the first guide rod 18 and the first guide sleeve 20, and in order to facilitate the rotating scraping mechanism to slide relative to the U-shaped top pressure frame 8, a certain distance is maintained between the two U-shaped top pressure frames 8, so that the correspondingly arranged double-headed cam members can pass through the spacing position, and relative movement can also occur at the same time, and the two U-shaped top pressure frames 8 are fixedly connected at a position away from the auxiliary bracket 2 by a scissor-type connecting rod.

[0046] And because the rotary scraping mechanism and the U-shaped top pressure frame 8 are set in a relative sliding state, the double-headed cam member can indirectly act on the linkage baffle 25 in the process of ensuring the sliding adjustment position of the rotary scraping mechanism relative to the U-shaped top pressure frame 8. It is necessary to set the linkage baffle 25 to have a certain length to ensure that when the double-headed cam member moves to different positions with the rotary scraping mechanism, the transition baffle 24 can act on the linkage baffle 25.

[0047] It should be noted that the initial position of the rotary scraping mechanism is on one side inside the two U-shaped top pressure frames 8, away from the other side. When performing cleaning operations, the side of the U-shaped top pressure frame 8 away from the rotary scraping mechanism can be first made to contact the inner wall of the boiler, and then the main bracket 1 and the auxiliary bracket 2 are pushed to drive the rotary scraping mechanism to move close to the inner wall of the boiler by sliding with the first guide rod 18 and the first guide sleeve 20, so as to facilitate the peeling process.

[0048] In some specific embodiments, in combination Figure 2 and Figure 7 As shown, the linked crushing mechanism includes a crushing column 16 and a convex tooth 17. The crushing column 16 is rotatably connected to the inside of the fixed inclined conduit 9 through a rotating shaft. The convex tooth 17 is fixedly arranged on an inner wall of one side of the fixed inclined conduit 9, and the convex tooth 17 cooperates with the crushing column 16. A driven wheel coaxially fixedly connected to the crushing column 16 is arranged on the outer side of the fixed inclined conduit 9. The rotating scraping mechanism is coaxially fixedly connected to a driving wheel 21. When the rotating scraping mechanism adopts a rotating column 6 and a scraper 7, the driving wheel 21 is specifically coaxially fixedly connected to the rotating column 6 of the rotating scraping mechanism. A transmission belt 29 is cooperated between the driving wheel 21 and the driven wheel. When the rotating scraping mechanism rotates, it drives the crushing column 16 to rotate through the driving wheel 21, the transmission belt 29 and the driven wheel, and the crushing column 16 cooperates with the convex tooth 17, so as to facilitate the crushing of the block coke body entering the fixed inclined conduit 9 and facilitate negative pressure suction.

[0049] In some specific embodiments, the reciprocating motion mechanism includes a limit plate 31, an auxiliary cam 30, a second guide rod 3 and a second guide sleeve 5. The auxiliary cam 30 is arranged on the outer side of the fixed inclined guide tube 9, and the auxiliary cam 30 is coaxially fixedly connected to the rolling column 16. The limit plate 31 is cooperated on one side of the auxiliary cam 30, and the limit plate 31 is fixedly connected to the main bracket 1 through a bracket. The distance between the limit plate 31 and the axial position of the auxiliary cam 30 is smaller than the length of the auxiliary cam 30 itself. The second guide rod 3 is fixedly connected to one side of the sub-bracket 2, the second guide sleeve 5 is fixedly connected to one side of the main bracket 1, and the second guide rod 3 slides through the second guide sleeve 5, and a compressible second limit spring 4 is connected between the second guide rod 3 and the second guide sleeve 5.

[0050] When the rotary scraping mechanism rotates, it drives the rolling column 16 to rotate synchronously. The rolling column 16 also drives the auxiliary cam 30 to rotate. The auxiliary cam 30 continuously squeezes and pushes the limit plate 31 during the rotation. Since the limit plate 31 is fixed relative to the main bracket 1, and the axial position of the auxiliary cam 30 is fixed relative to the sub-bracket 2, the auxiliary cam 30 will be subjected to a reaction force when squeezing the limit plate 31, causing the sub-bracket 2 to slide to one side relative to the second guide sleeve 5 by relying on the second guide rod 3, and compressing the second limit spring 4. When the auxiliary cam 30 disengages from the limit plate 31, the sub-bracket 2 moves back by relying on the rebound force of the second limit spring 4, so that continuous reciprocating motion can be achieved, thereby facilitating the synchronous movement of the U-shaped top pressure frame 8 that cuts into the coke body, expanding the cracks in the coke body, and facilitating cleaning and peeling.

[0051] In order to facilitate the understanding of the embodiments of this solution by those skilled in the art, the working principle of this solution is briefly described in combination with specific application scenarios:

[0052] First, the main bracket 1 is used to drive the U-shaped top pressure frame 8 to contact the inner wall of the boiler, and a circle of cracks is cut out of the coke body in the local area attached to the inner wall of the boiler, and the motor driving the rotating column 6 is started. During the rotation of the rotating column 6, it drives the double-headed cam member to rotate synchronously, and when the two ends of the double-headed cam member respectively contact the corresponding transition baffle 24, the transition baffle 24 moves due to the extrusion effect and moves along the extension direction of the second elastic telescopic rod 28, so that the transition baffles 24 on both sides squeeze the corresponding linkage baffle 25. Since the two sides of the transition baffles 24 close to the double-headed cam member are aligned with the axial position of the double-headed cam member, after the double-headed cam member rotates to more than a certain position, the two ends of the double-headed cam member are separated from the corresponding transition baffle 24 respectively, so that the extrusion force on the linkage baffle 25 is instantly released, so that it is convenient for the impact rod 11 to instantly rely on the rebound force of the supporting spring 14 to eject and impact, so as to hit the coke body on the boiler wall, break it by impact, and assist in generating cracks.

[0053] At the same time, when the rotary scraping mechanism rotates, it drives the rolling column 16 to rotate synchronously, and the rolling column 16 also drives the auxiliary cam 30 to rotate. The auxiliary cam 30 continuously squeezes and pushes the limit plate 31 during the rotation process. Since the limit plate 31 is fixed relative to the main bracket 1, and the axial position of the auxiliary cam 30 is fixed relative to the auxiliary bracket 2, the auxiliary cam 30 will be subjected to a reaction force when squeezing the limit plate 31, thereby causing the auxiliary bracket 2 to slide to one side relative to the second guide sleeve 5 by relying on the second guide rod 3, and compressing the second limit spring 4. When the auxiliary cam 30 is separated from the limit plate 31, the auxiliary bracket 2 moves back by relying on the rebound force of the second limit spring 4, so that continuous reciprocating motion can be achieved, thereby facilitating the synchronous movement of the U-shaped top pressure frame 8 cut into the coke body, expanding the cracks in the coke body, and facilitating the crushing of the coke body.

[0054] Then push the main support 1 so that it drives the rotating column 6 to move relative to the U-shaped top pressure frame 8 through the auxiliary support 2, and finally the scraper 7 distributed on the rotating column 6 rotates to scrape the broken coke body for peeling treatment, and when the coke body on the inner wall of the boiler is treated, the fixed inclined conduit 9 and the docked U-shaped top pressure frame 8 are always kept at the lower side, so as to ensure that the cleaned coke body falls into the fixed inclined conduit 9, and then is sucked away and collected by the suction hose 10, and the suction hose 10 can also suck up the raised dust, and when the rotary scraping mechanism rotates, it drives the rolling column 16 to rotate through the driving wheel 21, the transmission belt 29 and the driven wheel, and the rolling column 16 cooperates with the convex teeth 17, so as to facilitate the crushing of the block coke body entering the fixed inclined conduit 9 and facilitate negative pressure suction.

[0055] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A coal-fired boiler furnace dust cleaning device, comprising a main support (1), a secondary support (2) and a cleaning mechanism, wherein the secondary support (2) is used to support the cleaning mechanism, and is characterized in that: The cleaning mechanism comprises: A wall-breaking pressing mechanism and a rotary scraping mechanism, wherein the wall-breaking pressing mechanism comprises two symmetrically distributed U-shaped pressing frames (8), the two U-shaped pressing frames (8) are fixedly connected via a scissor-shaped connecting rod, and the rotary scraping mechanism is cooperatively arranged inside the two U-shaped pressing frames (8); A suction pipeline mechanism is installed on the auxiliary support (2), and the suction pipeline mechanism is connected to one of the U-shaped top pressure frames (8). A linkage crushing mechanism connected to the rotary scraping mechanism is arranged inside the suction pipeline mechanism, and a reciprocating motion mechanism connected to the linkage crushing mechanism is arranged between the auxiliary support (2) and the main support (1).

2. The coal-fired boiler furnace ash cleaning equipment according to claim 1 is characterized in that: The rotary scraping mechanism comprises a rotating column (6) and a scraper (7); the rotating column (6) is rotatably connected to the auxiliary bracket (2); a plurality of scrapers (7) are provided and are circumferentially fixedly distributed on the rotating column (6).

3. The coal-fired boiler furnace ash cleaning equipment according to claim 1, characterized in that: The wall-breaking top-pressing mechanism also includes an auxiliary ejection impact mechanism, which includes an impact rod (11), a linkage slide frame (12) and a support spring (14). A plurality of slide grooves (15) are evenly distributed on the side of the two U-shaped top-pressing frames (8) away from the auxiliary bracket (2). An impact rod (11) is slidably inserted in each of the slide grooves (15), and one end of the impact rod (11) is located outside the slide groove (15), and the other end is connected to the corresponding slide groove (15) through a support spring (14). Linkage slide frames (12) are slidably arranged on the outside of the two U-shaped top-pressing frames (8), and each of the impact rods (11) is fixedly connected to the corresponding linkage slide frame (12). Each of the impact rods (11) is fixedly connected to the corresponding linkage slide frame (12). The rotary scraping mechanism is coaxially rotated and provided with a linkage mechanism for driving the linkage slide frame (12) to slide.

4. The coal-fired boiler furnace dust cleaning equipment according to claim 3 is characterized in that: The linkage mechanism comprises a double-headed cam member and a linkage baffle (25). The double-headed cam member rotates coaxially with the rotary scraping mechanism. The linkage baffle (25) is provided with two pieces, which are respectively arranged on the outer sides of the corresponding U-shaped top pressure frame (8). A first elastic telescopic rod (26) is connected between the linkage baffle (25) and the corresponding U-shaped top pressure frame (8). The linkage baffle (25) and the corresponding linkage sliding frame (12) are fixedly connected with mutually matching inclined surface extrusion blocks (27). A transition telescopic top pressure mechanism is provided between the double-headed cam member and the linkage baffle (25).

5. The coal-fired boiler furnace dust cleaning device according to claim 4, characterized in that: The transition telescopic pressing mechanism comprises a transition baffle (24) and a second elastic telescopic rod (28). Two transition baffles (24) are provided and are centrally symmetrically distributed on both sides of the double-headed cam member. The transition baffle (24) is connected to the auxiliary bracket (2) via the second elastic telescopic rod (28). The transition baffle (24) is also correspondingly matched with the linkage baffle (25).

6. The coal-fired boiler furnace dust cleaning device according to claim 4, characterized in that: The double-headed cam member comprises a wheel body (22) and a convex head (23); the wheel body (22) is coaxially fixedly connected to the rotary scraping mechanism; two convex heads (23) are provided and symmetrically fixedly distributed on both sides of the wheel body (22).

7. The coal-fired boiler furnace dust cleaning equipment according to claim 1, characterized in that: The suction pipeline mechanism comprises a fixed oblique conduit (9) and a suction hose (10); the fixed oblique conduit (9) is fixedly connected to one side of the auxiliary bracket (2); one end of the fixed oblique conduit (9) is docked with one of the U-shaped top pressure frames (8) and the other end is connected to the suction hose (10).

8. The coal-fired boiler furnace dust cleaning device according to claim 7, characterized in that: The fixed inclined conduit (9) is slidably matched with the corresponding U-shaped top pressure frame (8); a first guide rod (18) is fixedly connected to the outer wall of the fixed inclined conduit (9); a first guide sleeve (20) is fixedly connected to the outer wall of the U-shaped top pressure frame (8) corresponding to the fixed inclined conduit (9); the first guide rod (18) slides through the first guide sleeve (20); and a first limit spring (19) is connected between the first guide rod (18) and the first guide sleeve (20).

9. The coal-fired boiler furnace dust cleaning device according to claim 7, characterized in that: The linked crushing mechanism comprises a crushing column (16) and a convex tooth (17); the crushing column (16) is rotatably connected to the inside of a fixed inclined conduit (9); the convex tooth (17) is fixedly arranged on an inner wall of one side of the fixed inclined conduit (9), and the convex tooth (17) cooperates with the crushing column (16); a driven wheel coaxially fixedly connected to the crushing column (16) is arranged on the outer side of the fixed inclined conduit (9); the rotating scraping mechanism is coaxially fixedly connected to a driving wheel (21); a transmission belt (29) is cooperatively connected between the driving wheel (21) and the driven wheel.

10. The coal-fired boiler furnace dust cleaning device according to claim 7, characterized in that: The reciprocating mechanism comprises a limit plate (31), an auxiliary cam (30), a second guide rod (3) and a second guide sleeve (5); the auxiliary cam (30) is arranged on the outside of the fixed inclined guide tube (9), and the auxiliary cam (30) is coaxially fixedly connected to the rolling column (16); the limit plate (31) is cooperated to be located on one side of the auxiliary cam (30); the limit plate (31) is fixedly connected to the main bracket (1); the second guide rod (3) is fixedly connected to one side of the auxiliary bracket (2); the second guide sleeve (5) is fixedly connected to one side of the main bracket (1); the second guide rod (3) slides through the second guide sleeve (5); a second limit spring (4) is connected between the second guide rod (3) and the second guide sleeve (5).

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