Anti-blocking dredging device for slag falling pipe of boiler
By designing a boiler slag pipe anti-blocking and dredging device including bracket assembly, inclined guide rail, rack sliding mechanism and limiting puller, the problems of easy blockage of boiler slag pipe and manual dredging safety hazards are solved, and efficient and safe dredging effect is achieved.
Patent Information
- Application Number
- CN202510336864.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-21
- Publication Date
- 2025-05-06
AI Technical Summary
In the prior art, boiler slag pipes are prone to blockage due to ash accumulation, and manual dredging methods have high labor costs and safety risks.
A boiler slag pipe anti-blocking and dredging device is designed, including bracket assembly, inclined guide rail, rack sliding mechanism and limit puller. Through the coordination of the driving gear and the transmission gear, the rapid movement and flip of the slag pole are achieved, and the harm of the ash spout to the operator is avoided.
It realizes efficient unblocking of boiler slag pipes, reduces labor costs, improves operational safety, and avoids equipment failures and production stagnation caused by ash blockage.
Smart Images
Figure CN119934526A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of coal conveyor belt cleaning, and in particular to a boiler slag pipe anti-blocking and dredging device. Background Art
[0002] During the operation of the circulating fluidized bed boiler, coal needs to be continuously burned. The ash formed after combustion is discharged from the furnace to the slag pipe and then sent to the slag cooler through the slag pipe. When the ash flows through the slag pipe, it is very easy to accumulate and eventually cause blockage.
[0003] At present, the dredging work for the slag pipe is mostly done by manually using a handheld slag-poking rod. However, this manual dredging method has high labor costs and usually requires two teams, each with about 3-4 people. The two teams take shifts to manually clear the slag pipe. At the same time, during the manual slag-poking process, high-temperature slag of about 800℃-900℃ will be ejected directly from the slag-poking port after the slag is dredged, forming a "fire dragon" about 2 meters long, which buries potential safety hazards for the manual clearing method, and thus causes great harm to the safety of on-site workers. Summary of the invention
[0004] The purpose of the present invention is to provide a boiler slag pipe anti-blocking and dredging device to solve the above-mentioned technical problems.
[0005] The above purpose is achieved through the following technical solutions: A boiler slag pipe anti-blocking and unblocking device comprises a bracket assembly, two inclined guide rails arranged front and back are fixed on the top of the bracket assembly, each of the inclined guide rails is slidably matched with a rack, a driving assembly for driving the rack to slide is installed on the bracket assembly, a slag poking rod is fixed on each of the racks, two slag poking rods are butt-jointed to form a cylindrical slag poking structure, and a limit pull rod for limiting the flipping of the slag poking rod is installed on each of the racks.
[0006] The boiler slag pipe anti-blocking and dredging device described above, the driving assembly includes a driving gear shaft and a transmission gear shaft, the transmission gear shaft and the driving gear shaft are respectively connected to the inclined guide rails on both sides through bearings, the two ends of the transmission gear shaft are respectively fixed with transmission gears, the two ends of the driving gear shaft are respectively fixed with driving gears, the driving gear is meshed with the transmission gear, and the transmission gear is meshed with the rack on the corresponding side.
[0007] The boiler slag pipe anti-blocking and unblocking device, the slag poking rod includes a supporting square rod, a turning rod and a semi-cylindrical rod, the supporting square rod is connected to the turning rod by a connecting shaft, the end of the turning rod is fixed with a semi-cylindrical rod, and the end of the supporting square rod is fixed with a threaded round rod.
[0008] The boiler slag pipe anti-blocking and dredging device, the limit puller includes a rebound rod group and a rotating rod, the rotating rod is rotatably connected to the fixed shaft at the opening of the rack, and one end of the rotating rod is fixed with two limiting rods, and the two limiting rods are respectively placed on the upper and lower sides of the hinge between the flip rod and the supporting square rod; The other end of the rotating rod is fixed to one end of the lower pull rope, the other end of the lower pull rope is fixed to the lower end of the rebound rod group, the upper end of the rebound rod group is fixed to one end of the upper pull rope, and the other end of the upper pull rope is fixed to the operating return rod; The lower cross bar of the operating return rod is rotatably connected to the rack.
[0009] The boiler slag pipe anti-blocking and unblocking device, the rebound rod group includes an outer sleeve fixed to the side of the rack, the outer sleeve is sleeved on the step rod, the step rod is sleeved with a spring, one end of the spring is fixed to the step rod, and the other end is fixed to the inside of the outer sleeve.
[0010] In the boiler slag pipe anti-blocking and dredging device, the gear ratio of the driving gear to the transmission gear is 6:1.
[0011] The boiler slag pipe anti-blocking and dredging device described herein comprises two H-shaped brackets arranged front and back, and a support beam and a cross arm are fixed between the two H-shaped brackets.
[0012] In the boiler slag pipe anti-blocking and unblocking device, the inclination angle of the inclined guide rail is consistent with the inclination angle of the slag poking port, and the center line of the cylindrical slag poking structure of the slag poking rod coincides with the center line of the slag poking port.
[0013] The boiler slag pipe anti-blocking and unblocking device is described, wherein the supporting square rod of the slag-poking rod passes through the square hole on the rack and then a nut is threadedly connected on the threaded round rod.
[0014] In the boiler slag pipe anti-blocking and dredging device, a limiting rod is fixed on the side of the rack, and the end of the limiting rod abuts against the rotating rod. Beneficial Effects
[0015] 1. The present invention drives the rack to slide through a driving component, so that the slag poking rod can poke the ash accumulated in the slag falling pipe from the slag poking port. The gear ratio of the driving gear and the transmission gear is 6:1. In this way, when the driving gear is manually cranked, the rack can be quickly moved through a large transmission ratio, so that the slag poking rod can quickly poke the ash, and then a reciprocating operation is performed to clear the ash.
[0016] 2. The present invention is equipped with a limit pull rod for limiting the flipping of the slag poking rod. After the slag poking rod is withdrawn after dredging, the return rod is manually pulled to rotate the rotating rod through the limit pull rod, so that the limiting rod is separated from the hinge between the flipping rod and the supporting square rod. In this way, the flipping rod of the slag poking rod will flip under its own weight, so that it will give up the position of the slag poking port, thereby preventing the sprayed ash from being affected by the slag poking rod.
[0017] 3. The operator-operated driving gear of the present invention is located in the opposite direction of the slag-poking port, which is opposite to the direction of ash and slag ejection, thereby preventing the operator from being affected and ensuring the safety of the operation. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 A perspective view of the present invention; Figure 2 It is a schematic diagram of the internal structure of the present invention; Figure 3 It is a right side view of the present invention; Figure 4 It is a left side view of the present invention; Figure 5 It is a front view of the present invention; Figure 6 for Figure 3 AA section view; Figure 7 for Figure 1 A magnified view of part B; Figure 8 for Figure 1 Enlarged view of part C; Fig. 9 for Figure 1 A magnified view of the D portion; Fig.10 for Figure 2 A magnified view of part E; Fig.11 for Figure 2 Magnified view of part F; Fig.12 for Figure 4 Enlarged view of the G section; Among them: 1. furnace; 2. slag dropping pipe; 3. inclined guide rail; 5. slag poking rod; 6. rack; 7. limit pull rod; 8. slag cooler; 9. bracket assembly; 10. driving gear; 11. hand crank; 12. transmission gear; 13. clearance notch; 14. transmission gear shaft; 15. driving gear shaft; 16. chute; 17. limit rod; 18. slag poking port; 19. square hole; 51. semi-cylindrical rod; 52. flip rod; 5 3. Connecting shaft; 54. Supporting square rod; 55. Threaded round rod; 71. Operating return rod; 72. Lower pull rope; 73. Rebound rod assembly; 74. Rotating rod; 75. Restricting rod; 76. Opening; 77. Fixed shaft; 78. Upper pull rope; 79. Compression spring; 80. Stop block; 81. Support block; 731. Spring; 732. Step rod; 733. Outer sleeve; 91. H-shaped bracket; 92. Support beam; 93. Cross arm. DETAILED DESCRIPTION
[0019] Reference Figure 1-Figure 12 , a boiler slag pipe anti-blocking and dredging device, which comprises a bracket assembly 9, two inclined guide rails 3 arranged front and back are fixed on the top of the bracket assembly, each of the inclined guide rails is slidably matched with a rack 6, a T-shaped slide groove 16 is provided at the bottom of the inclined guide rail, a T-shaped slider is fixed on the top surface of the rack, the T-shaped slider is inserted into the T-shaped slide groove and slidably matched, a driving assembly for driving the rack to slide is installed on the bracket assembly, a slag poking rod 5 is fixed on each of the racks, two of the slag poking rods are connected to form a cylindrical slag poking structure, and a limit pull rod 7 for flipping and limiting the slag poking rod is installed on each of the racks; The inclination angle of the inclined guide rail is consistent with the inclination angle of the slag poking opening 18, and the center line of the cylindrical slag poking structure of the slag poking rod coincides with the center line of the slag poking opening; The part of the slag falling pipe that is prone to blockage is the junction of the inclined section and the vertical section of the slag falling pipe, that is, the position of the slag poking port. When poking slag, the slag poking rod is aimed at the slag poking port of the slag falling pipe, and the driving assembly is manually driven by the personnel to drive the rack to slide. During the sliding of the rack, the slag poking rod will poke into the slag falling pipe through the slag poking port. Through the reciprocating drive, the slag poking rod will reciprocate to form a form of repeated slag poking; The driving assembly includes a driving gear shaft 15 and a transmission gear shaft 14, the transmission gear shaft and the driving gear shaft are respectively connected to the inclined guide rails on both sides through bearings, the two ends of the transmission gear shaft are respectively fixed with a transmission gear 12, the two ends of the driving gear shaft are respectively fixed with a driving gear 10, the driving gear is meshed with the transmission gear, the transmission gear is meshed with the rack on the corresponding side, and a hand crank 11 is fixed on the driving gear; The gear ratio of the driving gear to the transmission gear is 6:1, and the gear ratio of the driving gear to the transmission gear is 6:1. In this way, when the driving gear is rotated by hand-cranking the hand crank, the transmission gear can be rotated quickly through the large transmission ratio. The transmission gear is meshed with the rack, so that the rack moves quickly, so that the slag poking rod can quickly poke the ash slag, and then the reciprocating operation is performed to realize the dredging of the ash slag. The slag-poking rod comprises a supporting square rod 54, a turning rod 52 and a semi-cylindrical rod 51. The supporting square rod is connected to the turning rod via a connecting shaft 53. A semi-cylindrical rod is fixed to the end of the turning rod. A threaded round rod 55 is fixed to the end of the supporting square rod. After the supporting square rod of the slag-poking rod passes through the square hole 19 on the rack, a nut is threadedly connected on the threaded round rod to fix the slag-poking rod. At the same time, the square hole and the supporting square rod are matched to prevent the slag-poking rod from rotating, thereby ensuring the angular stability of the slag-poking rod. The limit pull rod device includes a rebound rod group 73 and a rotating rod 74, the rotating rod is rotatably connected to the fixed shaft 77 at the opening of the rack, and two limiting rods 75 are fixed to one end of the rotating rod, and the two limiting rods are respectively placed on the upper and lower sides of the hinge between the flip rod and the supporting square rod; The other end of the rotating rod is fixed to one end of the lower pull rope 72, the other end of the lower pull rope is fixed to the lower end of the rebound rod group, the upper end of the rebound rod group is fixed to one end of the upper pull rope 78, and the other end of the upper pull rope is fixed to the operating return rod 71; The lower cross bar of the operating return rod is rotatably connected to the rack.
[0020] The rebound rod assembly includes an outer sleeve 733 fixed to the side of the rack, the outer sleeve is sleeved on the step rod 732, and a spring 731 is sleeved on the step rod. One end of the spring is fixed to the step rod, and the other end is fixed to the inside of the outer sleeve.
[0021] After dredging, the slag-poking port will quickly spray out ash and slag. At this time, after the slag-poking rod is withdrawn, the return rod is manually operated to rotate it. The upper pull rope, the rebound rod group and the lower pull rope are pulled to rotate the rotating rod. After the rotation, the limiting rod will be separated from the hinge between the flip rod and the supporting square rod. In this way, the flip rod of the slag-poking rod will flip under its own weight, so that it will give up the position of the slag-poking port to prevent the sprayed ash and slag from being affected by the slag-poking rod; The support assembly includes two H-shaped supports 91 arranged front and back, and a support beam 92 and a cross arm 93 are fixed between the two H-shaped supports.
[0022] A limit rod 17 is fixed on the side of the rack, and the end of the limit rod abuts against the rotating rod. By setting the limit rod, the rotating rod is prevented from rotating excessively after rebounding. At the same time, a compression spring 79 is connected between the rack and the rotating rod. After the rotating rod is pulled to rotate, the compression spring is compressed. After the device is used and the ash is cleaned, the slag-poking rod can be rotated by hand to make it parallel to the supporting square rod. Then, the rotating rod rotates under the elastic force of the compression spring itself, so that its limiting rods are respectively against the upper and lower sides of the hinge between the flip rod and the supporting square rod; Working principle: When in use, through personnel operation, the personnel operate the driving gear in the opposite direction of the slag poking port, which is opposite to the direction of ash and slag spraying, which can prevent the operator from being affected and ensure the safety of operation. When the hand crank makes the driving gear rotate, the large transmission ratio is used to realize the rapid rotation of the transmission gear, and the transmission gear is meshed with the rack, so that the rapid movement of the rack makes the slag poking rod quickly poke the slag on the slag, and then the hand crank is manually cranked to make the driving gear rotate in the opposite direction. Driven by the transmission gear, the rack moves in the opposite direction, so that the slag poking rod withdraws from the slag poking port, and then the driving gear is rotated forward, and the slag poking rod is repeatedly used to poke the slag back and forth on the slag. At the same time, through the large transmission ratio of the driving gear and the transmission gear, when the driving gear is shaken quickly, the transmission gear can rotate quickly, so that the slag poking rod can quickly poke the slag and achieve the purpose of slag poking; After dredging, the slag-poking rod is withdrawn, and the return rod is manually operated to rotate it, and the rotating rod is rotated by pulling the upper pull rope, the rebound rod group and the lower pull rope. After rotation, the limiting rod will be separated from the hinge between the flip rod and the supporting square rod. In this way, the flip rod of the slag-poking rod will flip over under its own weight, so that it will give up the position of the slag-poking mouth to prevent the sprayed ash from being affected by the slag-poking rod. A support block 81 is fixed to the lower cross bar of the operating return rod, and a stopper 80 is fixed on the rack. When the operating return rod is not operated, the support block is in contact with the stopper. At this time, the spring in the rebound rod group is in a slightly compressed state, and the compression spring is in a slightly compressed state. Under the action of the compression spring, the rotating rod will keep its position, and under the action of the spring in the rebound rod group, the operating return rod will keep its initial state, and the support block is in contact with the stopper. At this time, the stability of the operating return rod position is guaranteed. When the slag-poking rod needs to be flipped, it is operated by hand. At the same time, the spring rebounds under its own elastic force, which will drive the step rod to move, thereby pulling the operating return rod to rotate in the opposite direction, until it rotates to the contact block with the stop block and stops.
Claims
1. A boiler slag pipe anti-blocking and dredging device, characterized by: It consists of a bracket assembly, on the top of which are fixed two inclined guide rails arranged front and back, each of which is slidably matched with a rack, a driving assembly for driving the rack to slide is installed on the bracket assembly, each of which is fixed with a slag-poking rod, and the two slag-poking rods are connected to form a cylindrical slag-poking structure, and each of which is installed with a limit pull rod for limiting the flipping of the slag-poking rod.
2. The boiler slag pipe anti-blocking and dredging device according to claim 1 is characterized by: The driving assembly includes a driving gear shaft and a transmission gear shaft. The transmission gear shaft and the driving gear shaft are respectively connected to the inclined guide rails on both sides through bearings. Transmission gears are respectively fixed at both ends of the transmission gear shaft. Driving gears are respectively fixed at both ends of the driving gear shaft. The driving gear is meshed with the transmission gear, and the transmission gear is meshed with the rack on the corresponding side.
3. A boiler slag pipe anti-blocking and dredging device according to claim 2, characterized in that: The slag-poking rod comprises a supporting square rod, a turning rod and a semi-cylindrical rod. The supporting square rod is connected to the turning rod via a connecting shaft. The end of the turning rod is fixed with a semi-cylindrical rod, and the end of the supporting square rod is fixed with a threaded round rod.
4. A boiler slag pipe anti-blocking and dredging device according to claim 3, characterized in that: The limit pull rod device includes a rebound rod group and a rotating rod, the rotating rod is rotatably connected to the fixed shaft at the opening of the rack, and two limiting rods are fixed to one end of the rotating rod, and the two limiting rods are respectively placed on the upper and lower sides of the hinge between the flip rod and the supporting square rod; The other end of the rotating rod is fixed to one end of the lower pull rope, the other end of the lower pull rope is fixed to the lower end of the rebound rod group, the upper end of the rebound rod group is fixed to one end of the upper pull rope, and the other end of the upper pull rope is fixed to the operating return rod; The lower cross bar of the operating return rod is rotatably connected to the rack.
5. The boiler slag pipe anti-blocking and dredging device according to claim 4 is characterized in that: The rebound rod assembly includes an outer sleeve fixed to the side of the rack, the outer sleeve is sleeved on the step rod, a spring is sleeved on the step rod, one end of the spring is fixed to the step rod, and the other end is fixed to the inside of the outer sleeve.
6. A boiler slag pipe anti-blocking and dredging device according to claim 5, characterized in that: The gear ratio between the driving gear and the transmission gear is 6:
1.
7. The boiler slag pipe anti-blocking and dredging device according to claim 6 is characterized by: The support assembly comprises two H-shaped supports arranged front and back, and a support beam and a cross arm are fixed between the two H-shaped supports.
8. The boiler slag pipe anti-blocking and dredging device according to claim 7 is characterized by: The inclination angle of the inclined guide rail is consistent with the inclination angle of the slag poking opening, and the center line of the cylindrical slag poking structure of the slag poking rod coincides with the center line of the slag poking opening.
9. The boiler slag pipe anti-blocking and dredging device according to claim 8 is characterized by: The supporting square rod of the slag-poking rod passes through the square hole on the rack, and then a nut is threadedly connected on the threaded round rod.
10. A boiler slag pipe anti-blocking and dredging device according to claim 9, characterized in that: A limiting rod is fixed on the side surface of the rack, and the end of the limiting rod abuts against the rotating rod.