Circulating fluidized bed electric slag remover

Abstract

This utility model relates to an electric slag remover for circulating fluidized beds. It includes a trolley placed near the slag discharge pipe, with wheels at the bottom and a vertically mounted support inside. A lever is hinged to the upper end of the support, with a reciprocating telescopic mechanism at the left end and a slag-removing rod at the right end, extending into the slag discharge pipe. The device automatically converts the motor's rotational motion into a linear reciprocating slag-removing motion of the slag-removing rod via a motor-driven reciprocating telescopic mechanism, completely replacing the heavy and dangerous manual slag removal. The lever principle amplifies the output force of the reciprocating telescopic mechanism, allowing the slag-removing rod to obtain greater impact force and achieve better slag removal.

Description

Technical Field

[0001] This utility model belongs to the field of circulating fluidized bed technology, specifically relating to an electric slag remover for circulating fluidized beds. Background Technology

[0002] During operation, the high-temperature slag inside the slag discharge pipe (commonly known as the "cold slag pipe" or "slag drop pipe") of a circulating fluidized bed boiler is prone to adhesion, cooling, and solidification. The main reason for slag blockage in the circulating fluidized bed slag discharge pipe is that large pieces of material enter the pipe, affecting the smooth flow of slag. Poor slag discharge can seriously affect the normal and stable operation of the boiler, and may even lead to forced shutdown for maintenance, resulting in huge economic losses.

[0003] Currently, resolving slag discharge pipe blockages primarily relies on traditional manual slag removal methods. Personnel use steel bars to clear the blockage, which generates a large amount of sparks and ash, easily causing burns. Furthermore, manual slag removal is entirely manpower-intensive, making it difficult to guarantee the force, frequency, and continuity of the slag removal. When the blockage is severe, multiple people often need to work in shifts, which is time-consuming, labor-intensive, and cannot quickly clear the blockage, potentially delaying production. Summary of the Invention

[0004] The purpose of this invention is to provide an electric slag remover for circulating fluidized beds to solve the problems mentioned in the background art.

[0005] The purpose of this utility model is achieved as follows: a circulating fluidized bed electric slag remover includes a trolley placed near the slag discharge pipe, wheels at the bottom of the trolley, a vertically mounted support inside the trolley, a lever hinged to the upper end of the support, a reciprocating telescopic mechanism at the left end of the lever, and a slag-removing rod at the right end of the lever, the slag-removing rod extending into the slag discharge pipe.

[0006] Brake pads are provided on the outer side of the wheels. The brake pads facilitate the positioning of the wheels and the trolley.

[0007] The reciprocating telescopic mechanism includes a vertical plate, a motor is fixedly mounted on the rear side of the vertical plate, a limit block is fixedly mounted on the upper front side of the vertical plate, an inner rod is movably mounted inside the limit block, a swing arm is mounted on the output end of the motor, a drive rod is hinged to the outer side of the swing arm, and a universal joint is mounted between the drive rod and the inner rod.

[0008] A connecting rod is hinged between the inner rod and the lever. The inner rod drives the lever to move through the connecting rod.

[0009] The swing arm has an adjustment groove inside, and the drive rod is connected to the adjustment groove through a first positioning bolt.

[0010] The lever is hinged to a sleeve on its right end, and a second positioning bolt is screwed onto the outside of the sleeve. The slag-pumping rod is placed inside the sleeve and can be fixed by the second positioning bolt.

[0011] The bracket and the reciprocating telescopic mechanism are both placed on top of the tray. The tray is equipped with rollers on its lower side and a sleeve is fixedly installed at the bottom of the tray. A screw is rotatably installed inside the trolley and is screwed into the sleeve. A turntable is installed on the outside of the trolley and is fixedly connected to the screw by a straight rod.

[0012] The trolley has a translation groove on the side near the slag discharge pipe. A baffle plate is snapped into the translation groove, and a central groove is provided inside the baffle plate. The central groove is for facilitating the movement of the lever.

[0013] The translation groove has positioning holes on both the upper and lower sides, and the baffle plate has a third positioning bolt at the bottom.

[0014] The beneficial effects of this utility model are: The device is integrated into a small cart with wheels at the bottom, allowing it to be easily moved to the slag discharge pipe where work needs to be done. Operators only need to start the equipment, without having to exert a great deal of physical strength, thus achieving "machinery replacing manpower" and fundamentally reducing labor intensity.

[0015] The reciprocating telescopic mechanism driven by a motor automatically converts the rotational motion of the motor into the linear reciprocating tamping motion of the slag-pumping rod, completely replacing the heavy and dangerous manual slag-pumping. The lever principle is used to amplify the output force of the reciprocating telescopic mechanism, so that the slag-pumping rod can obtain a greater impact force and the slag-clearing effect is better.

[0016] Universal joints effectively compensate for minor deviations that may occur during installation and movement, ensuring smooth power transmission and reducing the risk of component wear and jamming. The use of hinges between components provides the entire system with a degree of freedom of movement, resulting in smoother operation.

[0017] By rotating the turntable to drive the screw, the entire tray can be moved, allowing for precise adjustment of the position of the slag-pumping rod. This ensures the rod is accurately aligned with the slag discharge pipe at different locations, making it highly versatile.

[0018] The adjustable baffle is an important safety design feature. It forms a physical barrier at the interface between the slag-pushing rod and the slag-discharging pipe, effectively preventing high-temperature slag from suddenly splashing out during the unblocking process, thus protecting the safety of operators and the trolley. Attached Figure Description

[0019] Figure 1 This is a structural diagram of the trolley of the electric slag remover for the circulating fluidized bed of this utility model.

[0020] Figure 2This is a structural diagram of the reciprocating telescopic mechanism of the circulating fluidized bed electric slag remover of this utility model.

[0021] Figure 3 This is a structural diagram of the rod sleeve of the electric slag remover for circulating fluidized bed according to this utility model.

[0022] Figure 4 This is a diagram of the tray structure of the circulating fluidized bed electric slag remover of this utility model.

[0023] Figure 5 This is a side view of the baffle plate of the circulating fluidized bed electric slag remover of this utility model.

[0024] In the diagram: 1. Trolley; 2. Slag discharge pipe; 3. Wheel; 4. Bracket; 5. Lever; 6. Reciprocating telescopic mechanism; 7. Slag-pumping rod; 8. Vertical plate; 9. Motor; 10. Limiting block; 11. Inner rod; 12. Swing arm; 13. Drive rod; 14. Universal joint; 15. Connecting rod; 16. Adjustment groove; 17. First positioning bolt; 18. Rod sleeve; 19. Second positioning bolt; 20. Pallet; 21. Roller; 22. Screw; 23. Sleeve; 24. Straight rod; 25. Turntable; 26. Baffle plate; 27. Middle groove; 28. Translation groove; 29. ​​Positioning hole; 30. Third positioning bolt. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings.

[0026] Example 1 like Figure 1-3 As shown, the circulating fluidized bed electric slag remover includes a trolley 1, which is placed near the slag discharge pipe 2. The trolley 1 is equipped with wheels 3 at its bottom. A support 4 is vertically installed inside the trolley 1. A lever 5 is hinged to the upper end of the support 4. A reciprocating telescopic mechanism 6 is installed at the left end of the lever 5. A slag removal rod 7 is installed at the right end of the lever 5. The slag removal rod 7 extends into the slag discharge pipe 2.

[0027] Furthermore, brake pads are provided on the outer side of the wheel 3. The brake pads ensure that the equipment is fixed in position during operation, preventing it from moving under repeated impacts, and ensuring the stability and safety of operation.

[0028] Furthermore, the reciprocating telescopic mechanism 6 includes a vertical plate 8, a motor 9 is fixedly installed on the rear side of the vertical plate 8, a limit block 10 is fixedly installed on the upper front side of the vertical plate 8, an inner rod 11 is movably installed inside the limit block 10, a swing arm 12 is installed at the output end of the motor 9, a drive rod 13 is hinged to the outside of the swing arm 12, and a universal joint 14 is installed between the drive rod 13 and the inner rod 11.

[0029] Preferably, motor 9 can be a Y-series three-phase asynchronous motor.

[0030] Furthermore, a connecting rod 15 is hinged between the inner rod 11 and the lever 5.

[0031] Furthermore, the swing arm 12 is provided with an adjustment groove 16, and the drive rod 13 is connected to the adjustment groove 16 via a first positioning bolt 17. The adjustment groove 16 and the first positioning bolt 17 can change the equivalent length of the drive rod 13, thereby flexibly adjusting the stroke and impact force of the slag-clearing rod 7 to adapt to blockages of different severity.

[0032] Furthermore, a sleeve 18 is hinged to the right end of the lever 5, and a second positioning bolt 19 is screwed onto the outside of the sleeve 18. The extension length of the slag-discharging rod 7 can be easily adjusted via the sleeve 18 and the second positioning bolt 19 at the end of the lever 5, or different lengths of slag-discharging rods 7 can be replaced to meet different slag discharge depth requirements.

[0033] In use, the trolley 1 is positioned close to the slag discharge pipe 2 of the circulating fluidized bed, ensuring that the slag removal rod 7 is aligned with the slag discharge pipe opening for easy slag removal operation. The brake pads on the outer side of the wheels 3 are then depressed to bring the trolley 1 to a stable stop in its current position.

[0034] The motor 9, fixedly mounted on the rear side of the vertical plate 8, is activated. The output of the motor 9 drives the swing arm 12 to perform a circular motion. The drive rod 13, hinged to the outer side of the swing arm 12, swings with the movement of the swing arm 12. Since a universal joint 14 is provided between the drive rod 13 and the inner rod 11, and the inner rod 11 is movably mounted inside the limiting block 10, the swing of the drive rod 13 will cause the inner rod 11 to perform a reciprocating linear motion within the limiting block 10. A connecting rod 15 is hinged between the inner rod 11 and the lever 5. The reciprocating linear motion of the inner rod 11 is transmitted to the lever 5 through the connecting rod 15, causing the lever 5 to swing up and down around its hinge point with the upper end of the bracket 4. A slag-pumping rod 7 is provided at the right end of the lever 5, and the slag-pumping rod 7 extends into the slag discharge pipe 2. As the lever 5 swings up and down, the slag-pumping rod 7 moves up and down reciprocatingly within the slag discharge pipe 2, puddling the slag in the slag discharge pipe 2 and facilitating the smooth discharge of the slag.

[0035] Example 2 like Figure 1-5 As shown, the circulating fluidized bed electric slag remover includes a trolley 1, which is placed near the slag discharge pipe 2. The trolley 1 is equipped with wheels 3 at its bottom. A support 4 is vertically installed inside the trolley 1. A lever 5 is hinged to the upper end of the support 4. A reciprocating telescopic mechanism 6 is installed at the left end of the lever 5. A slag removal rod 7 is installed at the right end of the lever 5. The slag removal rod 7 extends into the slag discharge pipe 2.

[0036] Furthermore, brake pads are provided on the outer side of the wheel 3. The brake pads ensure that the equipment is fixed in position during operation, preventing it from moving under repeated impacts, and ensuring the stability and safety of operation.

[0037] Furthermore, the reciprocating telescopic mechanism 6 includes a vertical plate 8, a motor 9 is fixedly installed on the rear side of the vertical plate 8, a limit block 10 is fixedly installed on the upper front side of the vertical plate 8, an inner rod 11 is movably installed inside the limit block 10, a swing arm 12 is installed at the output end of the motor 9, a drive rod 13 is hinged to the outside of the swing arm 12, and a universal joint 14 is installed between the drive rod 13 and the inner rod 11.

[0038] Preferably, motor 9 can be a Y-series three-phase asynchronous motor.

[0039] Furthermore, a connecting rod 15 is hinged between the inner rod 11 and the lever 5.

[0040] Furthermore, the swing arm 12 is provided with an adjustment groove 16, and the drive rod 13 is connected to the adjustment groove 16 via a first positioning bolt 17. The adjustment groove 16 and the first positioning bolt 17 can change the equivalent length of the drive rod 13, thereby flexibly adjusting the stroke and impact force of the slag-clearing rod 7 to adapt to blockages of different severity.

[0041] Furthermore, a sleeve 18 is hinged to the right end of the lever 5, and a second positioning bolt 19 is screwed onto the outside of the sleeve 18. The extension length of the slag-discharging rod 7 can be easily adjusted via the sleeve 18 and the second positioning bolt 19 at the end of the lever 5, or different lengths of slag-discharging rods 7 can be replaced to meet different slag discharge depth requirements.

[0042] Furthermore, the bracket 4 and the reciprocating telescopic mechanism 6 are both placed above the tray 20. The tray 20 is provided with a roller 21 on its lower side and a sleeve 23 is fixedly provided at the bottom of the tray 20. A screw 22 is rotatably provided inside the trolley 1 and is screwed into the sleeve 23. A turntable 25 is provided on the outside of the trolley 1 and is fixedly connected to the screw 22 through a straight rod 24.

[0043] Furthermore, a translation groove 28 is provided on the side of the trolley 1 near the slag discharge pipe 2, and a baffle plate 26 is snapped into the translation groove 28, and a middle groove 27 is provided inside the baffle plate 26.

[0044] Furthermore, positioning holes 29 are provided on both the upper and lower sides of the translation groove 28, and a third positioning bolt 30 is provided at the bottom of the baffle plate 26. The third positioning bolt 30 cooperates with the positioning holes 29 to fix the position of the baffle plate 26.

[0045] In another embodiment, the positions of the support 4 and the reciprocating telescopic mechanism 6 are adjusted according to the location of the slag discharge pipe 2 and the actual operational requirements. The turntable 25 on the outside of the trolley 1 is rotated, and the turntable 25 drives the internal screw 22 of the trolley 1 to rotate via the straight rod 24. Since the screw 22 is screwed into the sleeve 23 fixed at the bottom of the tray 20, the rotation of the screw 22 causes the sleeve 23 to move the tray 20 and the support 4 and reciprocating telescopic mechanism 6 above it until the slag removal rod 7 reaches the appropriate working position.

[0046] To further protect the trolley 1 and the personnel, a shield 26 is installed on the outside of the trolley 1. Loosen the third positioning bolt 30, move the shield 26 upwards to a suitable position within the translation groove 28, and then use the third positioning bolt 30 again to fix the shield 26 through the appropriate positioning hole 29. The position of the central groove 27 inside the shield 26 will not interfere with the movement of the lever 5, ensuring that the lever 5 can swing up and down normally for slag removal. When the device is not in use, the tray 20 and the shield 26 can be moved to the middle position to reduce the footprint of the trolley 1, facilitating movement and storage.

Claims

1. A circulating fluidized bed electric rammer, which comprises a small trolley, said small trolley is placed close to a slag discharge pipe, characterized in that: The trolley is equipped with wheels at the bottom and a vertically mounted bracket inside. A lever is hinged to the upper end of the bracket, a reciprocating telescopic mechanism is mounted on the left end of the lever, and a slag-pumping rod is mounted on the right end of the lever, which extends into the slag discharge pipe.

2. The circulating fluid bed electric ram stoker according to claim 1, characterized in that: Brake pads are provided on the outer side of the wheel.

3. The circulating fluid bed electric ram stoker according to claim 2, characterized in that: The reciprocating telescopic mechanism includes a vertical plate, a motor is fixedly mounted on the rear side of the vertical plate, a limit block is fixedly mounted on the upper front side of the vertical plate, an inner rod is movably mounted inside the limit block, a swing arm is mounted on the output end of the motor, a drive rod is hinged to the outer side of the swing arm, and a universal joint is mounted between the drive rod and the inner rod.

4. The circulating fluidized bed electric slag remover according to claim 3, characterized in that: A connecting rod is hinged between the inner rod and the lever.

5. The circulating fluidized bed electric slag remover according to claim 4, characterized in that: The swing arm has an adjustment groove inside, and the drive rod is connected to the adjustment groove through a first positioning bolt.

6. The circulating fluidized bed electric slag remover according to claim 5, characterized in that: The lever is hinged to a sleeve on its right end, and a second positioning bolt is screwed onto the outside of the sleeve.

7. The circulating fluidized bed electric slag remover according to claim 1, characterized in that: The bracket and the reciprocating telescopic mechanism are both placed on top of the tray. The tray is equipped with rollers on its lower side and a sleeve is fixedly installed at the bottom of the tray. A screw is rotatably installed inside the trolley and is screwed into the sleeve. A turntable is installed on the outside of the trolley and is fixedly connected to the screw by a straight rod.

8. The circulating fluidized bed electric slag remover according to claim 7, characterized in that: The trolley is provided with a translation groove on the side near the slag discharge pipe. A baffle plate is snapped into the translation groove, and a middle groove is provided inside the baffle plate.

9. The circulating fluidized bed electric slag remover according to claim 8, characterized in that: The translation groove has positioning holes on both the upper and lower sides, and the baffle plate has a third positioning bolt at the bottom.

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