Coal-fired power plant solid waste slurry conveying structure

Abstract

The application discloses a kind of coal-fired power plant solid waste slurry conveying structure, it is related to coal mine solid waste processing technical field, and its technical scheme main point is including the combination pipe section for splicing to form integral conveying slurry pipeline, spiral groove is opened in combination pipe section;Combination pipe section is also provided with spiral ring plate slidingly embedded in spiral groove, and multiple groups of paddle are uniformly arranged in the inner side of spiral ring plate;Wherein the end of spiral ring plate is provided with power component for driving its rotation.This application opens spiral groove in combination pipe section, and sets up the spiral ring plate that is connected in the activity in spiral groove in it, and sets up the paddle that agitates the slurry body for conveying in the inner side of spiral ring plate, so that spiral ring plate can be realized reciprocating walking in combination pipe section by spiral groove in positive and negative rotation, to agitate slurry body through combination pipe section using paddle, to maintain the stability of slurry mixing, to avoid the occurrence of pipe blockage, reduce transportation operation cost.

Description

Technical Field

[0001] This invention relates to the field of coal mine solid waste treatment technology, specifically to a solid waste slurry conveying structure for coal-fired power plants. Background Technology

[0002] Coal-fired power plants continuously generate large amounts of solid byproducts during power generation, among which fly ash is the largest and most consistently generated type of solid waste. On the other hand, in coal mining engineering, underground coal mines in my country commonly employ the caving roof management method. This mining method creates large-scale goaf areas. Under the weight of the overlying strata and the disturbance caused by mining, these goaf areas gradually collapse and undergo compaction deformation, easily leading to surface subsidence and related engineering problems. Therefore, fly ash is typically used to make slurry for timely grouting and filling of mined areas, achieving environmental protection and energy conservation through waste reuse. However, due to the long distance between the working face and the fly ash accumulation area, and the large transport distance, directly transporting dry powder to the working face for slurry preparation can lead to difficulties in dust control due to numerous transfer points. Therefore, it is conventional to prepare slurry on-site at the fly ash accumulation area and establish a pipeline to pump the slurry to the working face. However, during long-distance pumping, the solid powder is prone to sedimentation and segregation within the pipeline, leading to blockages. This necessitates manual pipeline maintenance, increasing transportation costs.

[0003] Therefore, this invention was designed to solve the above-mentioned problems.

[0004] The above content is only used to help understand the technical solution of the present invention and does not represent an admission that the above content is the closest prior art. Summary of the Invention

[0005] The purpose of this invention is to overcome the above-mentioned shortcomings and provide a solid waste slurry conveying structure for coal-fired power plants.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A solid waste slurry conveying structure for a coal-fired power plant includes a combined pipe section for splicing to form an integral slurry conveying pipeline, with a spiral groove opened inside the combined pipe section; a spiral ring plate slidably embedded in the spiral groove is also provided inside the combined pipe section, with multiple sets of stirring plates evenly distributed on the inner side of the spiral ring plate; wherein the end of the spiral ring plate is provided with a power component to drive its rotation.

[0007] Furthermore, the power assembly includes a connecting rod fixed at the end of the spiral ring plate, a first power shaft fixed at the end of the connecting rod away from the spiral ring plate and located at the axis of the spiral ring plate, a first turbine blade evenly distributed and rotatably mounted on the first power shaft, and a reversing unit for adjusting the deflection angle of the first turbine blade.

[0008] Furthermore, the first power shaft is hollow inside, and the end of the first turbine blade is provided with a movable shaft that movably passes through the side wall of the first power shaft. The reversing unit includes a controller disposed inside the first power shaft, an electric telescopic rod mounted on the controller, a synchronous wheel fixed to the end of the electric telescopic rod, and a transmission connecting rod with one end rotatably disposed on the synchronous wheel and the other end hinged to the movable shaft.

[0009] Furthermore, both ends of the first power shaft are provided with tapered splitters.

[0010] Furthermore, the top of the diverter is provided with a trigger switch embedded therein for sending a signal to the controller to drive the electric telescopic rod to extend or retract. The inner walls of both ends of the combined pipe section are fixed with a bearing plate located at its axis by a fixing rod. The bearing plate is provided with a trigger pin protruding outward on the side of the combined pipe section relative to the inner side for triggering the trigger switch.

[0011] Furthermore, the spiral ring plate has slopes at both ends that slope towards the ends.

[0012] Furthermore, a second power shaft is mounted on the bearing near the top of the slope on the side wall of the spiral ring plate. Flip plates are evenly distributed in the middle part of the second power shaft, and second turbine blades are evenly distributed at both ends. The first stabilizing ring is fitted on the side of the second turbine blades away from the axis of the second power shaft.

[0013] Furthermore, a second stabilizing ring is provided at the outer end of the first turbine blade, and the end of the first turbine blade away from the first power shaft is rotatably connected to the side wall of the second stabilizing ring.

[0014] Compared with the prior art, the beneficial effects of this solution are as follows: The present invention opens a spiral groove in the combined pipe section and sets a spiral ring plate that is engaged and moves within the spiral groove. A stirring plate for agitating the conveyed slurry is set on the inner side of the spiral ring plate, so that the spiral ring plate can reciprocate within the combined pipe section by rotating forward and backward within the spiral groove. The stirring plate agitates the slurry passing through the combined pipe section to maintain the stability of slurry mixing, thereby avoiding pipe blockage and reducing transportation operation costs. Attached Figure Description

[0015] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings: Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention; Figure 2 This is a schematic diagram of the internal structure of the combined pipe section in an embodiment of the present invention; Figure 3This is a front view schematic diagram of the combination of the spiral ring plate and the power component in an embodiment of the present invention; Figure 4 This is a side view schematic diagram of the combination of the spiral ring plate and the power component in an embodiment of the present invention; Figure 5 This is a schematic diagram of the power component in an embodiment of the present invention; Figure 6 This is a schematic diagram of the internal structure of the first power shaft in an embodiment of the present invention; Figure 7 This is a schematic diagram illustrating the combination relationship between the controller and the synchronous pulley in an embodiment of the present invention; Figure 8 This is a schematic diagram showing the combination relationship between the transmission connecting rod, the movable shaft, and the synchronous pulley in an embodiment of the present invention; Figure 9 This is a schematic diagram of the combination relationship between the splitter head and the first power shaft in an embodiment of the present invention; Figure 10 This is a schematic diagram showing the relative positional relationship between the flap and the slope in an embodiment of the present invention; Figure 11 This is a schematic diagram showing the disassembly of the flap and the spiral ring plate in an embodiment of the present invention; Figure 12 This is a schematic diagram of the trigger pin structure in an embodiment of the present invention.

[0016] In the diagram: 1. Combined pipe section; 11. Spiral groove; 12. Spiral ring plate; 13. Stirring plate; 2. Connecting rod; 21. First power shaft; 22. First turbine blade; 3. Movable shaft; 31. Controller; 32. Electric telescopic rod; 33. Synchronous pulley; 34. Transmission connecting rod; 4. Diverter head; 5. Trigger switch; 51. Fixed rod; 52. Bearing plate; 53. Trigger pin; 6. Slope; 7. Second power shaft; 71. Flip plate; 72. Second turbine blade; 73. First stabilizing ring; 8. Second stabilizing ring. Detailed Implementation

[0017] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] like Figure 1-12The diagram illustrates a solid waste slurry conveying structure for a coal-fired power plant, comprising a combined pipe section 1. The combined pipe section 1 is assembled at both ends via flanges to form an integral conveying pipeline. Each combined pipe section 1 has a spiral groove 11 and a spiral ring plate 12 embedded within the spiral groove 11. Multiple sets of stirring plates 13 are evenly distributed on the inner side of the spiral ring plate 12. A power component is provided at the end of the spiral ring plate 12 to drive its rotation. The power component drives the spiral ring plate 12 to rotate within the spiral groove 11, causing it to reciprocate within the combined pipe section 1. During its rotation, the stirring plates 13 on its inner wall continuously agitate the slurry passing through the combined pipe section 1. Simultaneously, the reciprocating motion of the spiral ring plate 12 within the combined pipe section 1 ensures that the slurry at each point in the combined pipe section 1 is periodically agitated, maintaining a uniform mixture and preventing stratification and segregation that could lead to pipe blockage. This ensures the conveying device can operate for extended periods.

[0019] In one embodiment, the power assembly includes a connecting rod 2 fixed at the end of the spiral ring plate 12, a first power shaft 21 fixed at the end of the connecting rod 2 away from the spiral ring plate 12 and located at the axis of the spiral ring plate 12, first turbine blades 22 evenly distributed and rotatably mounted on the first power shaft 21, and a reversing unit for adjusting the deflection angle of the first turbine blades 22. The first turbine blades 22 allow the kinetic energy of the slurry to be converted into mechanical energy, thereby driving the first power shaft 21 to rotate. The first power shaft 21 then drives the spiral ring plate 12 to rotate via the connecting rod 2, thus realizing the combined pipe section. Within section 1, the reversing unit ensures that when the spiral ring plate 12 travels to one end of the combined pipe section 1, it can change the tilt direction of the first turbine blade 22, so that when the slurry passes through again, it can be converted into reverse rotational force, thereby causing the spiral ring plate 12 to rotate in the opposite direction to move back. This structure drives the spiral ring plate 12 to rotate through the power of the slurry itself, which not only avoids the setting of an additional power source and simplifies the structure, but also allows the spiral ring plate 12 to start working automatically when the slurry is continuously transported, without the need for additional starting components. Its overall responsiveness is better and its degree of automation is higher.

[0020] In one embodiment, the first power shaft 21 is hollow inside, and the end of the first turbine blade 22 is provided with a movable shaft 3 that movably passes through the side wall of the first power shaft 21. The reversing unit includes a controller 31 disposed inside the first power shaft 21, an electric telescopic rod 32 mounted on the controller 31, a synchronous wheel 33 fixed to the end of the electric telescopic rod 32, and a transmission connecting rod 34 with one end rotatably disposed on the synchronous wheel 33 and the other end hinged to the movable shaft 3. Both ends of the first power shaft 21 are provided with tapered diverter heads 4, thereby reducing the fluid resistance during the movement of the first power shaft 21. The top of the diverter head 4 is provided with a trigger switch 5 embedded therein for transmitting a signal to the controller 31 to drive the electric telescopic rod 32 to extend or retract. The inner walls of both ends of the combined pipe section 1 are fixed with positioning rods 51. At the axis of the bearing plate 52, a trigger pin 53 protruding outward is provided on the side of the bearing plate 52 relative to the inner side of the combined pipe section 1 to trigger the trigger switch 5. When the spiral ring plate 12 moves to one end of the combined pipe section 1, the trigger pin 53 on the corresponding side will push the trigger switch 5 in the diverter head 4, thereby transmitting a signal to the controller 31, which drives the electric telescopic rod 32 to extend and retract, and then the synchronous wheel 33 extends and retracts synchronously to pull or push the transmission link 34, so that the movable shaft 3 drives the first turbine blade 22 to rotate. The extension and retraction amount of the electric telescopic rod 32 is fixed, so that the first turbine blade 22 has only two tilt angle states. When its tilt angle state changes, the spiral ring plate 12 changes the rotation direction under the power of the slurry. The whole process is highly automated and does not require additional structure to participate in the operation.

[0021] In one embodiment, the spiral ring plate 12 has slopes 6 at both ends that slope towards the ends, so that some of the solids accumulated in the spiral groove 11 can be easily scooped out when the spiral ring plate 12 moves. A second power shaft 7 is mounted on the side wall of the spiral ring plate 12 near the top of the slope 6. The middle part of the second power shaft 7 is evenly distributed with flaps 71, and the two ends are evenly distributed with second turbine blades 72. The side of the second turbine blades 72 away from the axis of the second power shaft 7 is fitted with a first stabilizing ring 73. When the slurry is transported, it will also drive the second power shaft 7 to rotate through the second turbine blades 72, thereby driving the flaps 71 to rotate. So when the spiral ring plate 12 produces the accumulated material in the spiral groove 11, the flaps 71 can quickly remove the accumulated material on the slope 6, thereby reducing the moving resistance of the spiral ring plate 12, making the slurry power conversion rate higher and less likely to cause energy loss.

[0022] In one embodiment, a second stabilizing ring 8 is provided at the outer end of the first turbine blade 22. The end of the first turbine blade 22 away from the first power shaft 21 is rotatably connected to the side wall of the second stabilizing ring 8, thereby ensuring stronger integrity among the first turbine blades 22, making it easier to convert slurry power, and increasing structural durability.

[0023] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within the present invention.

Claims

1. A solid waste slurry conveying structure for a coal-fired power plant, characterized in that: Includes a combined pipe section (1) for splicing to form an integral slurry conveying pipeline, and a spiral groove (11) is provided inside the combined pipe section (1). The combined pipe section (1) is also provided with a spiral ring plate (12) that is slidably embedded in the spiral groove (11), and multiple sets of stirring plates (13) are evenly distributed on the inner side of the spiral ring plate (12). The end of the spiral ring plate (12) is provided with a power component that drives its rotation.

2. The solid waste slurry conveying structure for coal-fired power plants according to claim 1, characterized in that: The power assembly includes a connecting rod (2) fixed at the end of the spiral ring plate (12), a first power shaft (21) fixed at the end of the connecting rod (2) away from the spiral ring plate (12) and located at the axis of the spiral ring plate (12), a first turbine blade (22) evenly distributed and rotatably arranged on the first power shaft (21), and a reversing unit for adjusting the deflection angle of the first turbine blade (22).

3. The solid waste slurry conveying structure for coal-fired power plants according to claim 2, characterized in that: The first power shaft (21) is hollow inside, and the end of the first turbine blade (22) is provided with a movable shaft (3) that movably passes through the side wall of the first power shaft (21). The reversing unit includes a controller (31) disposed in the first power shaft (21), an electric telescopic rod (32) mounted on the controller (31), a synchronous wheel (33) fixed at the end of the electric telescopic rod (32), and a transmission link (34) with one end rotatably disposed on the synchronous wheel (33) and the other end hinged to the movable shaft (3).

4. The solid waste slurry conveying structure for coal-fired power plants according to claim 2 or 3, characterized in that: Both ends of the first power shaft (21) are provided with tapered splitter heads (4).

5. The solid waste slurry conveying structure for coal-fired power plants according to claim 4, characterized in that: The top of the diverter (4) is provided with a trigger switch (5) embedded therein for sending a signal to the controller (31) to drive the electric telescopic rod (32) to extend and retract. The inner walls of both ends of the combined pipe section (1) are fixed with a bearing plate (52) located at its axis by a fixing rod (51). The bearing plate (52) is provided with a trigger pin (53) protruding outward on the side of the inner side of the combined pipe section (1) for triggering the trigger switch (5).

6. The solid waste slurry conveying structure for coal-fired power plants according to claim 1, characterized in that: The spiral ring plate (12) has slopes (6) that slope towards the ends at both ends.

7. The solid waste slurry conveying structure for coal-fired power plants according to claim 6, characterized in that: The spiral ring plate (12) has a bearing mounted on the side wall near the top of the slope (6) with a second power shaft (7). The middle part of the second power shaft (7) is evenly distributed with flaps (71), and the two ends are evenly distributed with second turbine blades (72). The second turbine blades (72) are fitted with a first stabilizing ring (73) on the side away from the axis of the second power shaft (7).

8. The solid waste slurry conveying structure for coal-fired power plants according to claim 4, characterized in that: The outer end of the first turbine blade (22) is provided with a second stabilizing ring (8), and the end of the first turbine blade (22) away from the first power shaft (21) is rotatably connected to the side wall of the second stabilizing ring (8).

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