A boiler slag discharge device for thermal power plants

Abstract

This utility model provides a slag discharge device for a thermal power plant boiler. The slag discharge device includes: a slag discharge port on one side of the boiler body; a rectangular opening on one side of the boiler body; a collection box fixedly installed on the boiler body; a slag discharge mechanism installed on the collection box for pushing out the slag; a disturbance mechanism on the slag discharge mechanism for agitating the slag; and a water spraying and cooling mechanism on the slag discharge mechanism for spraying water to cool the slag. The slag discharge device for a thermal power plant boiler provided by this utility model has the advantages of agitating and cooling the slag, high slag discharge efficiency, and convenient operation.

Description

Technical Field

[0001] This utility model relates to the field of boiler slag discharge technology in thermal power plants, and in particular to a boiler slag discharge device for thermal power plants. Background Technology

[0002] The boiler slag discharge device in a thermal power plant is a key piece of equipment for maintaining the safe operation of the boiler and improving energy utilization efficiency. Its core function is to discharge the slag produced by combustion in a timely manner to prevent equipment blockage and to achieve the cooling, transportation and heat recovery of the slag.

[0003] However, existing boiler slag discharge devices in thermal power plants often lack the functions of disturbing the slag and spraying water for cooling, which is quite inconvenient. For example, Chinese invention patent publication number CN120799473A discloses a boiler slag cleaning device, which is set below the slag discharge pipe. The slag discharge pipe is a rectangular pipe, including a separation box connected to the slag discharge pipe. The separation box has a separation chamber and a first discharge chamber from top to bottom. The separation chamber has a second slag discharge port for discharging granular slag and a third slag discharge port for discharging block slag on both sides. The first discharge chamber is connected to a pneumatic pipe for discharging fine slag. A steel belt conveyor is installed below the second slag discharge port and the third slag discharge port. The device uses valve components and separation components to separate the slag into fine slag, granular slag, and block slag. However, it lacks the functions of disturbing the slag and spraying water for cooling.

[0004] Therefore, it is necessary to provide a boiler slag discharge device for thermal power plants to solve the above-mentioned technical problems. Utility Model Content

[0005] To address the technical problem that existing boiler slag discharge devices in thermal power plants often lack the functions of disturbing the slag and spraying water for cooling, this utility model provides a boiler slag discharge device for thermal power plants.

[0006] The boiler slag discharge device for thermal power plants provided by this utility model includes: a slag discharge port opened on one side of the boiler body; a rectangular opening opened on the other side of the boiler body; a storage box fixedly installed on the boiler body with one end open to cover the rectangular opening; a slag discharge mechanism installed on the storage box for extending into the boiler body through the rectangular opening to push the slag out of the slag discharge port; a disturbance mechanism provided on the slag discharge mechanism for agitating the slag; and a water spraying and cooling mechanism provided on the slag discharge mechanism for spraying water to cool the slag.

[0007] Preferably, the slag discharge mechanism includes: a hydraulic cylinder fixedly installed on the storage box; and a slag pusher cover fixedly installed on the output rod of the hydraulic cylinder and adapted to the rectangular opening, wherein the slag pusher cover includes a vertical portion fixedly connected to the output rod of the hydraulic cylinder and a horizontal portion extending horizontally at the top of the vertical portion.

[0008] Preferably, the disturbance mechanism includes: a sliding rod vertically slidably connected to the horizontal portion; a limiting block fixed to the top of the sliding rod and located above the horizontal portion; a U-shaped plate fixedly installed at the bottom end of the sliding rod, the closed end of the U-shaped plate being fixedly connected to the bottom end of the sliding rod; a spring sleeved on the sliding rod and located between the closed end of the U-shaped plate and the horizontal portion; a rotating shaft rotatably installed between the two free ends of the U-shaped plate; and a rolling roller fixedly sleeved on the rotating shaft.

[0009] Preferably, the water spray cooling mechanism includes: a U-shaped tube horizontally fixedly installed at the bottom of the horizontal section, surrounding the vertical plate; a nozzle disposed on the U-shaped tube; a booster pump fixedly installed on the top of the storage box; a flexible hose disposed at the water outlet of the booster pump and connected to the U-shaped tube; a water inlet pipe disposed at the water inlet of the booster pump; and a solenoid valve disposed on the water inlet pipe.

[0010] Preferably, a hydraulic controller is fixedly installed on the storage box, and a hydraulic oil pipe is installed on the hydraulic controller and connected to the hydraulic cylinder.

[0011] Preferably, a groove is provided at the top of the storage box near the boiler body, and a baffle that slidably fits against the rectangular opening is installed on the groove.

[0012] Preferably, the baffle is provided with a toothed groove, a servo motor is fixedly installed on the storage box, and a gear is fixedly sleeved on the output shaft of the servo motor, the gear meshing with the toothed groove.

[0013] Compared with related technologies, the boiler slag discharge device for thermal power plants provided by this utility model has the following beneficial effects: This utility model provides a boiler slag discharge device for thermal power plants. Slag can be discharged through a discharge port, and a rectangular opening allows for the avoidance of a slag-pushing cover. A collection box houses the slag discharge mechanism, a disturbance mechanism agitates the slag, and a water spray cooling mechanism cools the slag. A hydraulic cylinder drives the slag-pushing cover to move laterally, pushing the slag out of the boiler body. A compaction roller agitates and assists in conveying the slag, preventing agglomeration. Water is introduced into a booster pump through a water inlet pipe. Water is pressurized by a booster pump and injected into a U-shaped pipe through a hose. Multiple nozzles on the U-shaped pipe spray the water onto the slag, thereby cooling the slag. The water inlet pipe can be opened and closed by a solenoid valve. The hydraulic cylinder can be controlled by a hydraulic controller and hydraulic oil pipe. A baffle can be installed through a slide groove to block the rectangular opening and prevent slag from entering the collection box. A servo motor drives a gear to rotate. The meshing of the gear on the tooth groove moves the baffle up and down, thereby controlling the opening and closing of the baffle. Attached Figure Description

[0014] Figure 1 A schematic diagram of a preferred embodiment of the boiler slag discharge device for thermal power plants provided by this utility model; Figure 2 for Figure 1 An enlarged schematic diagram of part A shown in the image; Figure 3 for Figure 1 The enlarged schematic diagram of part B shown in the figure.

[0015] Numbered in the diagram: 1. Boiler body; 2. Ash discharge port; 3. Rectangular opening; 4. Storage box; 5. Hydraulic cylinder; 6. Ash pusher cover; 7. Sliding rod; 8. Rotating shaft; 9. Roller; 10. U-shaped tube; 11. Nozzle; 12. Booster pump; 13. Hose; 14. Water inlet pipe; 15. Solenoid valve; 16. Hydraulic controller; 17. Hydraulic oil pipe; 18. Slide groove; 19. Baffle; 20. Gear groove; 21. Servo motor; 22. Gear. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Please refer to the following: Figure 1-3 The boiler slag discharge device for a thermal power plant includes: a slag discharge port 2 opened on one side of the boiler body 1; a rectangular opening 3 opened on the other side of the boiler body 1; a collection box 4 fixedly installed on the boiler body 1 with one end open to cover the rectangular opening; a slag discharge mechanism installed on the collection box 4 for extending into the boiler body through the rectangular opening to push the slag out of the slag discharge port; a disturbance mechanism installed on the slag discharge mechanism for agitating the slag; and a water spraying and cooling mechanism installed on the slag discharge mechanism for spraying water to cool the slag. The slag can be discharged through the slag discharge port 2, the slag discharge mechanism can be installed in the collection box 4, the slag discharge mechanism can enter the boiler body through the rectangular opening 3, the slag can be agitated by the disturbance mechanism, and the slag can be cooled by spraying water by the water spraying and cooling mechanism.

[0018] The slag discharge mechanism includes: a hydraulic cylinder 5 fixedly installed on the storage box 4; and a slag pusher 6 fixedly installed on the output rod of the hydraulic cylinder 5 and adapted to the rectangular opening. The slag pusher 6 includes a vertical part fixedly connected to the output rod of the hydraulic cylinder and a horizontal part extending horizontally at the top of the vertical part. The slag pusher 6 is driven to move laterally by the hydraulic cylinder 5, and the slag pusher 6 can push the slag in the boiler body 1 out of the slag discharge port through the laterally moving slag pusher 6.

[0019] The disturbance mechanism includes: a sliding rod 7 vertically slidably connected to the horizontal part; a limiting block 701 fixed to the top of the sliding rod and located above the horizontal part; a U-shaped plate 703 fixedly installed at the bottom end of the sliding rod 7, the closed end of the U-shaped plate being fixedly connected to the bottom end of the sliding rod; a spring 702 sleeved on the sliding rod 7 and located between the closed end of the U-shaped plate and the horizontal part; a rotating shaft 8 rotatably installed between the two free ends of the U-shaped plate 703; and a rolling roller 9 fixedly sleeved on the rotating shaft 8. The sliding rod 7 allows the rolling roller 9 to move up and down, the spring 702 applies downward pressure to the rolling roller 9, and the hydraulic cylinder 5 drives the rolling roller 9 to move laterally, causing the rolling roller 9 to roll on the slag. Under the action of the sliding rod and the spring, the rolling roller will move up and down, thereby disturbing the slag, assisting in conveying, and preventing agglomeration.

[0020] The water spray cooling mechanism includes: a U-shaped tube 10 horizontally fixedly installed at the bottom of the horizontal section, surrounding the vertical plate; nozzles 11 installed on the U-shaped tube 10; a booster pump 12 fixedly installed on the top of the storage box 4; a flexible hose 13 installed at the water outlet of the booster pump 12 and connected to the U-shaped tube 10; a water inlet pipe 14 installed at the water inlet of the booster pump 12; and a solenoid valve 15 installed on the water inlet pipe 14. Water is introduced into the booster pump 12 through the water inlet pipe 14, the booster pump 12 pressurizes the water flow and injects it into the U-shaped tube 10 through the flexible hose 13, and the water is sprayed onto the slag through multiple nozzles 11 on the U-shaped tube 10 to cool the slag. The solenoid valve 15 can control the opening and closing of the water inlet pipe 14.

[0021] A hydraulic controller 16 is fixedly installed on the storage box 4. A hydraulic oil pipe 17 is installed on the hydraulic controller 16 and connected to the hydraulic cylinder 5. The hydraulic cylinder 5 can be controlled through the hydraulic controller 16 and the hydraulic oil pipe 17. One end of the hydraulic cylinder can extend out of the storage box to facilitate the connection of the hydraulic oil pipe.

[0022] The top of the collection box 4, near the boiler body, has a sliding groove 18. A baffle 19, which slidably fits against the rectangular opening, is mounted on the sliding groove 18. The baffle 19 can be installed through the sliding groove 18 to cover the rectangular opening 3 during normal boiler operation, thus preventing slag from entering the collection box 4. When slag discharge is required, the baffle is opened to expose the rectangular opening, allowing the slag pusher to enter the boiler body through the rectangular opening.

[0023] The baffle 19 has a toothed groove 20. A servo motor 21 is fixedly installed on the storage box 4. A gear 22 is fixedly sleeved on the output shaft of the servo motor 21. The gear 22 meshes with the toothed groove 20. The servo motor 21 drives the gear 22 to rotate. The meshing and rotation of the gear 22 on the toothed groove 20 can drive the baffle 19 to move up and down, thereby controlling the lifting and opening of the baffle 19.

[0024] The working principle of the boiler slag discharge device for thermal power plants provided by this utility model is as follows: During slag discharge, the servo motor 21 drives the gear 22 to rotate. The gear 22 meshes and rotates on the tooth groove 20, which drives the baffle 19 to move upward, so that the baffle 19 avoids the rectangular opening 3. The hydraulic cylinder 5 drives the slag pusher 6 to move laterally. The slag pusher 6 can push out the slag in the boiler body 1 by moving laterally. During the process of pushing the slag, the rolling roller 9 can disturb the slag. Water is introduced into the booster pump 12 through the water inlet pipe 14. The booster pump 12 pressurizes the water flow and injects it into the U-shaped pipe 10 through the hose 13. The water is sprayed onto the slag through multiple nozzles 11 on the U-shaped pipe 10, thereby spraying water to cool the slag.

[0025] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A boiler slag discharge device for a thermal power plant, characterized in that, include: Boiler body; A slag discharge port is provided on one side of the boiler body; a rectangular opening is provided on the other side of the boiler body; A storage box fixedly installed on the boiler body with one end open to cover a rectangular opening; a slag discharge mechanism installed on the storage box for extending into the boiler body through the rectangular opening to push slag out of the slag discharge port; a disturbance mechanism provided on the slag discharge mechanism for agitating the slag; and a water spraying and cooling mechanism provided on the slag discharge mechanism for spraying water to cool the slag.

2. The boiler slag discharge device for thermal power plants according to claim 1, characterized in that, The slag discharge mechanism includes: a hydraulic cylinder fixedly installed on the storage box; and a slag pusher cover fixedly installed on the output rod of the hydraulic cylinder and adapted to the rectangular opening, wherein the slag pusher cover includes a vertical part fixedly connected to the output rod of the hydraulic cylinder and a horizontal part extending horizontally at the top of the vertical part.

3. The boiler slag discharge device for thermal power plants according to claim 2, characterized in that, The disturbance mechanism includes: a sliding rod vertically slidably connected to the horizontal part; a limiting block fixed to the top of the sliding rod and located above the horizontal part; a U-shaped plate fixedly installed at the bottom end of the sliding rod, the closed end of the U-shaped plate being fixedly connected to the bottom end of the sliding rod; a spring sleeved on the sliding rod and located between the closed end of the U-shaped plate and the horizontal part; a rotating shaft rotatably installed between the two free ends of the U-shaped plate; and a rolling roller fixedly sleeved on the rotating shaft.

4. The boiler slag discharge device for thermal power plants according to claim 3, characterized in that, The water spray cooling mechanism includes: a U-shaped tube fixedly installed horizontally at the bottom of the horizontal section, surrounding the vertical plate; a nozzle installed on the U-shaped tube; a booster pump fixedly installed on the top of the storage box; a flexible hose installed at the outlet end of the booster pump and connected to the U-shaped tube; an inlet pipe installed at the inlet end of the booster pump; and a solenoid valve installed on the inlet pipe.

5. The boiler slag discharge device for thermal power plants according to claim 4, characterized in that, A hydraulic controller is fixedly installed on the storage box, and a hydraulic oil pipe is installed on the hydraulic controller and connected to the hydraulic cylinder.

6. The boiler slag discharge device for thermal power plants according to claim 1, characterized in that, The top of the storage box is provided with a sliding groove at one end near the boiler body, and a baffle that is slidably installed on the sliding groove to fit against the rectangular opening.

7. The boiler slag discharge device for thermal power plants according to claim 6, characterized in that, The baffle has a toothed groove, and a servo motor is fixedly installed on the storage box. A gear is fixedly sleeved on the output shaft of the servo motor, and the gear meshes with the toothed groove.

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