A lifting device for a thermal power plant

Abstract

The present application relates to the field of thermal power plant device, especially to a lifting device for thermal power plant, which comprises a fuel furnace, an annular inner cylinder is also fixed in the fuel furnace, a plurality of storage devices are uniformly arranged on the inner cylinder, the storage device comprises a storage bin arranged on the inner cylinder, a rotating shaft is arranged on the inner cylinder at the position of the storage bin, the rotating shaft is driven to rotate by a corresponding pushing motor, a push plate is also fixed on the rotating shaft in the storage bin, adjacent storage bins are communicated through a communication port, a discharge port is arranged on the inner cylinder at one side of the storage bin, a chute is arranged on the inner cylinder at both sides of the discharge port, a baffle is arranged at the position of the discharge port, the baffle is arranged in the chute at the corresponding position at both sides and is in sliding connection with the chute, and the baffle is driven to move by a corresponding winding motor. Through the discharge port arranged around the fuel furnace, the fuel can be loaded to avoid accumulation in one position.

Description

Technical Field

[0001] This invention relates to the field of thermal power plant equipment, and more particularly to a hoisting device for thermal power plants. Background Technology

[0002] Thermal power plant fuel generally refers to the fuel required for electricity production in thermal power plants. The fuels used in thermal power plants are broadly classified into solid fuels, liquid fuels, and gaseous fuels. Solid fuel is mainly coal. Coal consists of carbon, ash, moisture, and volatiles. Coal is a combustible black or brownish-black sedimentary rock, typically found in coalbed mounds or veins. It is mainly composed of elements such as carbon, oxygen, nitrogen, sulfur, and phosphorus, and is primarily used to produce electricity or heat through combustion. It is also an important raw material for the metallurgical and chemical industries.

[0003] Patent application number 202322166224.7 discloses an automatic fuel feeding mechanism for thermal power plants. This mechanism includes a base, a geared rail at the upper end of the base, a frame on the outer side of the geared rail, a first rotating shaft on the inner side of the frame, a first gear on the outer side of the first rotating shaft, and the first gear meshing with the geared rail. A first platform is fixedly mounted on the side of the frame, a worm gear at the upper end of the first platform, a second gear at the upper end of the worm gear, and the second gear meshing with the worm gear. A second rotating shaft is located inside the second gear, a first connecting rod on the outer side of the second rotating shaft, and a second platform at the upper end of the first connecting rod. In operation, the second platform rotates, causing the double-cone feeding cylinder to tilt, pouring fuel into the combustion furnace through the discharge port. However, this type of device, by feeding fuel by tilting, causes fuel to accumulate in one position within the combustion furnace, leading to severe flame center skew, resulting in serious consequences such as localized slagging, overheating and tube rupture of the heating surface, unstable combustion, and decreased thermal efficiency.

[0004] This invention was proposed in response to the shortcomings of existing technologies. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a hoisting device for thermal power plants.

[0006] This invention can be achieved through the following technical solutions: This invention discloses a lifting device for thermal power plants, comprising a fuel furnace, an annular inner cylinder fixed inside the fuel furnace, and multiple storage devices evenly arranged on the inner cylinder. Each storage device includes a storage bin on the inner cylinder, and a rotating shaft is provided on the inner cylinder at each storage bin location. The rotating shaft is driven to rotate by a corresponding pusher motor. A pusher plate is also fixed on the rotating shaft inside the storage bin. Adjacent storage bins are connected through a connecting port. A discharge port is provided on one side of the inner cylinder of each storage bin. A sliding groove is provided on both sides of the inner cylinder at the discharge port. A baffle is provided at each discharge port location. Both sides of the baffle are located in the corresponding sliding groove and are slidably connected to the sliding groove. The baffle is driven to move by a corresponding winding motor. A feed inlet is also provided on the fuel furnace, and a conveyor belt is inclinedly arranged on the fuel furnace. One end of the conveyor belt passes through the feed inlet and extends into one of the storage bins. The conveyor belt is driven to rotate by a corresponding conveyor motor. Fuel is fed into a storage bin within the inner cylinder via a conveyor belt. As the fuel gradually enters the storage bin, a pusher motor drives various push plates to rotate. As the push plates rotate, the fuel accumulates to a certain amount and gradually diffuses into adjacent storage bins through the connecting opening. Once each storage bin has stored a certain amount of fuel, the conveyor belt stops. When fuel needs to be fed into the combustion furnace, a winding motor drives a winding shaft to rotate. The winch rotates with the winding shaft, and the wire rope gradually winds up onto the winch. The baffle rises, and the fuel is discharged through the outlet below the baffle. By feeding fuel through the outlets arranged around the fuel furnace, fuel accumulation in one location can be avoided, effectively preventing serious consequences such as localized slagging, overheating and tube rupture of the heating surface, unstable combustion, and decreased thermal efficiency.

[0007] Preferably, multiple lifting rings are fixed above the baffle, a winding motor is fixed on the inner cylinder on one side of the baffle, a winding shaft is fixed at the output end of the winding motor, and winches are fixed on the winding shaft at positions corresponding to the lifting rings. A support shaft is also fixed above the inner cylinder, and guide wheels are fixed on the support shaft at positions corresponding to the lifting rings. The winches are connected to the lifting rings at corresponding positions via steel wire ropes, and the steel wire ropes pass around the guide wheels at corresponding positions.

[0008] Preferably, each of the baffles is equipped with a vibrator. After feeding, when it is necessary to seal the discharge port, the vibrator drives the baffle to vibrate, which can push the fuel that has entered the chute to slide down when the baffle moves downward, thus achieving a smooth descent of the baffle.

[0009] Compared with existing technologies, the present invention has the following advantages: By feeding fuel through the discharge port located around the fuel furnace, fuel accumulation in one place can be avoided, effectively preventing serious consequences such as local slagging, overheating and tube rupture of the heating surface, unstable combustion, and decreased thermal efficiency. Attached Figure Description

[0010] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings, wherein: Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the structure of the present invention from another angle; Figure 3 for Figure 2 Sectional view at point AA; Figure 4 for Figure 2 Sectional view at point BB; Figure 5 for Figure 3 Enlarged view at point C; In the diagram: 1. Fuel furnace; 2. Inner cylinder; 3. Feed inlet; 4. Conveyor belt; 5. Conveyor motor; 6. Storage device; 7. Storage bin; 8. Connecting port; 9. Rotating shaft; 10. Push plate; 11. Push motor; 12. Discharge port; 13. Chute; 14. Baffle; 15. Lifting ring; 16. Vibrator; 17. Winding shaft; 18. Winding motor; 19. Winch; 20. Support shaft; 21. Guide wheel; 22. Wire rope; Detailed Implementation

[0011] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings: Example

[0012] like Figures 1 to 5As shown, this embodiment discloses a lifting device for a thermal power plant, comprising a fuel furnace 1, an annular inner cylinder 2 fixed inside the fuel furnace 1, and a plurality of storage devices 6 evenly arranged on the inner cylinder 2. Each storage device 6 includes a storage bin 7 disposed on the inner cylinder 2. A rotating shaft 9 is provided on each storage bin 7 on the inner cylinder 2. The rotating shaft 9 is driven to rotate by a corresponding pusher motor 11. A pusher plate 10 is also fixed on the rotating shaft 9 inside the storage bin 7. Adjacent storage bins 7 are connected through a connecting port 8. Each inner cylinder 2 on one side of a storage bin 7 is provided with... The furnace is equipped with a discharge port 12. Slide grooves 13 are provided on the inner cylinders 2 on both sides of the discharge port 12. Baffles 14 are provided at the discharge port 12. Both sides of the baffles 14 are set in the slide grooves 13 at the corresponding positions and are slidably connected to the slide grooves 13. The baffles 14 are driven to move by the corresponding winding motors 18. The fuel furnace 1 is also equipped with a feed port 3. The fuel furnace 1 is also equipped with an inclined conveyor belt 4. One end of the conveyor belt 4 passes through the feed port 3 and extends into one of the storage bins 7. The conveyor belt 4 is driven to rotate by the corresponding conveyor motor 5. Fuel is discharged into a storage bin 7 in the inner cylinder 2 via conveyor belt 4. After the fuel is gradually discharged into the storage bin 7, each pusher motor 11 drives each pusher plate 10 to rotate. When the pusher plate 10 rotates, the fuel accumulates to a certain amount and gradually diffuses into the adjacent storage bin 7 through the connecting port 8. After each storage bin 7 stores a certain amount of fuel, the conveyor belt 4 stops. When it is necessary to discharge fuel into the combustion furnace, the winding motor 18 drives the winding shaft 17 to rotate. The winch 19 rotates with the winding shaft 17, and the wire rope 22 is gradually wound onto the winch 19. The baffle 14 rises, and the fuel is discharged through the discharge port 12 below the baffle 14. By feeding through the discharge port 12 that is arranged around the fuel furnace 1, the fuel can be prevented from accumulating in one position, which can effectively avoid serious consequences such as local slagging, overheating and tube bursting of the heating surface, unstable combustion, and decreased thermal efficiency.

[0013] Among them, multiple lifting rings 15 are fixed above the baffle 14, a winding motor 18 is fixed on the inner cylinder 2 on one side of the baffle 14, a winding shaft 17 is fixed at the output end of the winding motor 18, and a winch 19 is fixed on the winding shaft 17 at the corresponding position of the lifting rings 15. A support shaft 20 is also fixed above the inner cylinder 2, and a guide wheel 21 is fixed on the support shaft 20 at the corresponding position of the lifting rings 15. The winch 19 is connected to the lifting rings 15 at the corresponding position through a steel wire rope 22, and the steel wire rope 22 passes around the guide wheel 21 at the corresponding position. Example

[0014] This embodiment discloses a lifting device for thermal power plants. Based on the structure and principle of Embodiment 1, this embodiment has a vibrator 16 fixed on the baffle 14. After feeding, when it is necessary to seal the discharge port 12, the vibrator 16 drives the baffle 14 to vibrate, which can push the fuel entering the chute 13 to slide down when the baffle 14 moves downward, so as to achieve a smooth descent of the baffle 14.

[0015] The above are merely preferred embodiments of the present invention. It should be noted that, for those skilled in the art, various changes, modifications, substitutions and variations can be made to these embodiments without departing from the technical principles of the present invention. These changes, modifications, substitutions and variations should also be considered within the scope of protection of the present invention.

Claims

1. A hoisting device for thermal power plants, characterized in that, The device includes a fuel furnace, inside which is a fixed annular inner cylinder. Multiple storage devices are evenly arranged on the inner cylinder, each storage device comprising a storage bin on the inner cylinder. A rotating shaft is installed on the inner cylinder at each storage bin location, driven by a corresponding pusher motor. A pusher plate is also fixed on the rotating shaft within each storage bin. Adjacent storage bins are connected via a connecting port. A discharge port is provided on one side of the inner cylinder of each storage bin. Sliding grooves are provided on both sides of the discharge port on the inner cylinder. A baffle is provided at each discharge port location, with both sides of the baffle positioned within corresponding sliding grooves and slidably connected to them. The baffles are driven to move by corresponding winding motors. The fuel furnace also has a feed inlet and an inclined conveyor belt. One end of the conveyor belt passes through the feed inlet and extends into one of the storage bins. The conveyor belt is driven to rotate by a corresponding conveyor motor.

2. The hoisting device for thermal power plants according to claim 1, characterized in that: Multiple lifting rings are fixed above the baffle. A winding motor is fixed on the inner cylinder on one side of the baffle. A winding shaft is fixed at the output end of the winding motor. A winch is fixed on the winding shaft at a position corresponding to the lifting ring. A support shaft is also fixed above the inner cylinder. A guide wheel is fixed on the support shaft at a position corresponding to the lifting ring. The winch is connected to the lifting ring at the corresponding position through a steel wire rope. The steel wire rope passes around the guide wheel at the corresponding position.

3. The hoisting device for thermal power plants according to claim 1, characterized in that: Vibrators are fixed to each of the baffles.

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