Slag removal device for thermal power plant

By introducing components such as collars, guide rails, and servo motors into thermal power plants, automated scraping of coal slag at the bottom of the furnace has been achieved, solving the problem of low efficiency in manual cleaning in existing technologies and improving cleaning efficiency.

CN223499591UActive Publication Date: 2025-10-31DATANG SHUANGYASHAN THERMAL POWER CO LTD
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Patent Information

Application Number
CN202423071453.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-12
Publication Date
2025-10-31
Estimated Expiration
2034-12-12

AI Technical Summary

Technical Problem

Existing thermal power plants lack effective automated scraping structures for the bottom of the furnace, which means that when there is a lot of slag at the bottom of the furnace, manual removal is required, reducing the efficiency of the removal process.

Method used

A slag removal device for thermal power plants was designed, including a collar, a guide rail, a servo motor, an adjusting push rod, a moving seat, a connecting plate, and a scraper. The servo motor drives the collar and guide rail to rotate, and the inclined structure of the guide rail and the scraper are used to automatically scrape off the slag. Combined with the pushing function of the moving seat and the connecting plate, the slag is pushed into the packing tube.

Benefits of technology

The system enables automated removal of coal slag from the bottom of the furnace, improving removal efficiency, reducing manual intervention, and enhancing overall cleaning efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a slag removal device of a thermal power plant, and relates to the technical field of slag removal of power plants, the slag removal device of the thermal power plant comprises a lantern ring, and the main body of the lantern ring is of an annular structure. A corresponding inclined structure is further arranged on the bottom end face of the guide rail, so that when the lantern ring rotates along with the output shaft of the servo motor, automatic scraping operation can be achieved by making contact with the bottom end face of the interior of the furnace body through the inclined face of the bottom end of the guide rail; an adjusting push rod fixedly connected in a guide rail is arranged, so that a movable seat can be pushed by starting the adjusting push rod; and a connecting plate fixedly connected to the top end face of the movable seat is used for driving a scraping plate fixedly connected to the bottom end face of the connecting plate to move along the inner bottom end face of the furnace body, so that the purpose that the slag is rapidly pushed into the filling pipe to be pushed out is achieved.
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Description

Technical Field

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

[0002] A thermal power plant, or coal-fired power plant for short, is a factory that uses combustible materials (such as coal) as fuel to produce electricity. Its basic production process is as follows: fuel burns to heat water and generate steam, converting the chemical energy of the fuel into heat energy. The steam pressure drives a steam turbine to rotate, converting the heat energy into mechanical energy. Then, the steam turbine drives a generator to rotate, converting the mechanical energy into electrical energy. An existing patent, CN118242654A, describes an automated slag removal method and device for a thermal power plant, including a high-pressure steam self-steam pipe, a slag removal pipe, and four... The branch pipes enter the interiors of the first, second, third, and fourth automatic slag removal discs, respectively, and discharge from multiple nozzles at the bottom of the four discs. This process automatically removes slag adhering to the inner wall of the thermal power furnace using high-temperature, high-pressure steam. Slag falling from the inner wall of the thermal power furnace enters the bottom edge and can be removed by opening the coal filling door. Simultaneously, the inner wall of the thermal power furnace can be cleaned while slag is being removed.

[0003] Regarding the aforementioned technologies, the inventors believe that the following defects exist: although coal can be fed through the gate during use, the lack of an effective automated scraping structure at the bottom of the furnace means that manual removal is required when there is a large amount of slag at the bottom of the furnace, which reduces the removal efficiency. Therefore, we propose a slag removal device for thermal power plants to solve the above-mentioned problems. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this utility model provides a slag removal device for thermal power plants, which solves the problem that the lack of an effective automated scraping structure at the bottom of the furnace means that manual removal is required when there is a large amount of slag at the bottom of the furnace, thus reducing the removal efficiency.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a slag removal device for a thermal power plant, comprising a collar, the main body of which is an annular structure, and a guide rail is fixedly connected to the outer circumferential surface of the collar. The guide rail is arranged horizontally, and a horizontal groove is opened on the top surface of the guide rail. The horizontal groove is a mounting groove, and an adjusting push rod is fixedly connected to the inner side of the mounting groove. The main body of the adjusting push rod is arranged horizontally, and a movable seat is fixedly connected to the output end of the adjusting push rod.

[0006] Preferably, the main body of the movable seat is a rectangular block structure, and a slider is fixedly connected to the outside of the movable seat, the slider being a structure that protrudes from the movable seat.

[0007] Preferably, the two sliders are fixedly connected to the front and rear sides of the movable seat in opposite directions, and a cover is fixedly connected to the outer side of the movable seat. The cover is a flexible structure.

[0008] Preferably, the shield is provided in two places, and the two shields are fixedly connected to the left and right sides of the movable base in opposite directions, and a connecting plate is fixedly connected to the front end of the movable base.

[0009] Preferably, the main body of the connecting plate is an L-shaped structure, and a scraper is fixedly connected to the bottom surface of the connecting plate, with the bottom end of the scraper being inclined.

[0010] Preferably, the collar is mounted on the top output shaft of the servo motor, and the servo motor is fixedly connected to the bottom surface of the furnace body.

[0011] Preferably, the furnace body is a combustion furnace, and a base is fixedly connected to the bottom end of the furnace body. A packing pipe is fixedly connected to the front opening of the furnace body, a hatch is fixedly connected to the front end of the packing pipe, and a handle is fixedly connected to the front end of the hatch. The packing pipe and the furnace body together form the packing and discharge structure. Beneficial effects

[0012] This utility model provides a slag removal device for thermal power plants. Compared with the prior art, it has the following advantages:

[0013] The slag removal device for this thermal power plant is equipped with a guide rail fixedly connected to the outer circumference of the collar, and a corresponding inclined structure is provided on the bottom end of the guide rail. Therefore, when the collar rotates following the output shaft of the servo motor, the bottom inclined surface of the guide rail can contact the inner bottom end of the furnace body to achieve automated scraping operation.

[0014] The slag removal device for this thermal power plant is equipped with an adjusting push rod fixedly connected to the guide rail. When in use, the adjusting push rod can be activated to push the moving seat. The connecting plate fixedly connected to the top surface of the moving seat drives the scraper fixedly connected to the bottom surface of the connecting plate to move along the bottom surface of the furnace body, thereby quickly pushing the slag into the interior of the packing tube and then pushing it out. Attached Figure Description

[0015] Figure 1 This is a front view schematic diagram of a portion of the slag removal device of this utility model after cross-section.

[0016] Figure 2 This is a schematic diagram of the combined structure of the slag removal device of this utility model;

[0017] Figure 3 This is a schematic diagram of the combined structure of the collar and guide rail of the slag removal device of this utility model;

[0018] Figure 4 This is a top view of the slag removal device of this utility model;

[0019] Figure 5 This is a front view structural diagram of the slag removal device of this utility model;

[0020] Figure 6 This is a side view of the slag removal device of this utility model.

[0021] In the diagram: 1. Base; 101. Furnace body; 102. Packing tube; 103. Door; 104. Handle; 2. Servo motor; 201. Collar; 202. Guide rail; 203. Mounting groove; 3. Adjusting push rod; 301. Moving seat; 302. Slider; 303. Cover; 304. Connecting plate; 305. Scraper. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1-6 This utility model provides a technical solution: a slag removal device for a thermal power plant, including a collar 201. The main body of the collar 201 is a ring structure, and a guide rail 202 is fixedly connected to the outer circumferential surface of the collar 201. The guide rail 202 is arranged horizontally, and a horizontal groove is opened on the top surface of the guide rail 202. The horizontal groove is a mounting groove 203, and an adjusting push rod 3 is fixedly connected to the inner side of the mounting groove 203. The main body of the adjusting push rod 3 is arranged horizontally, and a movable seat 301 is fixedly connected to the output end of the adjusting push rod 3.

[0024] By fixing a horizontally arranged adjusting push rod 3 to the inside of the guide rail 202, the movable seat 301 can be pushed and moved during use.

[0025] See Figure 1 , Figure 5 The main body of the movable seat 301 is a rectangular block structure, and a slider 302 is fixedly connected to the outside of the movable seat 301. The slider 302 is a structure that protrudes from the movable seat 301.

[0026] By fixing two sliders 302 opposite to each other on the outside of the movable seat 301, the movable seat 301 can be guided when it moves.

[0027] See Figure 2 , Figure 4 Two sliders 302 are fixedly connected to the front and rear sides of the movable base 301 in opposite directions, and a cover 303 is fixedly connected to the outside of the movable base 301. The cover 303 is a flexible structure.

[0028] By fixing two shields 303 opposite to each other on the outside of the movable seat 301, the top opening of the guide rail 202 can be shielded when in use.

[0029] See Figure 1 , Figure 2 There are two shields 303, which are fixedly connected to the left and right sides of the movable base 301 in opposite directions, and the front end of the movable base 301 is fixedly connected to the connecting plate 304.

[0030] By fixing a connecting plate 304 to the front end of the movable base 301, it can be connected to the scraper 305 during use.

[0031] See Figure 3 , Figure 5 The main body of the connecting plate 304 is an L-shaped structure, and a scraper 305 is fixedly connected to the bottom surface of the connecting plate 304. The bottom end of the scraper 305 is an inclined structure.

[0032] By fixing a scraper 305 to the bottom surface of the connecting plate 304, the residue can be pushed out by the movement of the scraper 305 during use.

[0033] See Figure 1 , Figure 5 The collar 201 is installed on the top output shaft of the servo motor 2, and the servo motor 2 is fixedly connected to the bottom end face of the furnace body 101.

[0034] By installing a collar 201 on the top output shaft of the servo motor 2, it can drive the guide rail 202 to rotate during use.

[0035] See Figure 4 , Figure 6 The furnace body 101 is a combustion furnace, and a base 1 is fixedly connected to the bottom end of the furnace body 101. A packing pipe 102 is fixedly connected to the front opening of the furnace body 101. A hatch 103 is fixedly connected to the front end of the packing pipe 102. A handle 104 is fixedly connected to the front end of the hatch 103. The packing pipe 102 and the furnace body 101 together form the packing and discharge structure.

[0036] By fixing a packing tube 102 to the front end face of the furnace body 101, packing can be applied into the interior of the furnace body 101 during use.

[0037] During operation, when the furnace body 101 is used in a thermal power plant, it is placed on the ground via the base 1 fixedly connected to its bottom end. Simultaneously, the inside of the furnace body 101 is filled with material through the packing tube 102 located at the front end of the furnace body 101. After the material is filled, the door 103 is pushed towards the packing tube 102 by holding the handle 104 fixedly connected to the front end of the hatch 103, or by manually inserting a hand tool into the handle 104, to quickly close the packing tube 102. The furnace body 101 in the figure only shows the bottom structure and does not represent the entire furnace.

[0038] Furthermore, when it is necessary to clean the inside of the furnace body 101 during use, the servo motor 2 installed on the bottom surface of the furnace body 101 can be started to drive the collar 201 and the guide rail 202 to rotate. The rotation of the guide rail 202 and the inclined structure of the bottom surface of the guide rail 202 can scrape the slag on the bottom surface of the furnace body 101 to the side close to the packing tube 102. At this time, the adjusting push rod 3 installed in the guide rail 202 can be started to push the moving seat 301 towards the side of the packing tube 102. The moving seat 301, through the connecting plate 304 fixedly connected to its outer side, drives the scraper 305 to move along the bottom surface of the furnace body 101 to push the residue into the inside of the packing tube 102 for easy removal.

[0039] In summary, this device, by having a servo motor 2 fixedly connected to the bottom surface of the furnace body 101, can drive the guide rail 202 to rotate for impurity removal.

[0040] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

Claims

1. A slag removal device for a thermal power plant, comprising a collar (201), characterized in that: The main body of the collar (201) is a ring structure, and a guide rail (202) is fixedly connected to the outer circumference of the collar (201). The guide rail (202) is arranged horizontally, and a horizontal groove is opened on the top surface of the guide rail (202). The horizontal groove is a mounting groove (203), and an adjusting push rod (3) is fixedly connected to the inner side of the mounting groove (203). The main body of the adjusting push rod (3) is arranged horizontally, and a movable seat (301) is fixedly connected to the output end of the adjusting push rod (3).

2. The slag removal device for a thermal power plant according to claim 1, characterized in that: The main body of the movable seat (301) is a rectangular block structure, and a slider (302) is fixedly connected to the outside of the movable seat (301). The slider (302) is a structure that protrudes from the movable seat (301).

3. The slag removal device for a thermal power plant according to claim 2, characterized in that: The two sliders (302) are fixedly connected to the front and rear sides of the movable seat (301) in opposite directions, and a cover (303) is fixedly connected to the outside of the movable seat (301). The cover (303) is a flexible structure.

4. The slag removal device for a thermal power plant according to claim 3, characterized in that: The shield (303) is provided in two places. The two shields (303) are fixedly connected to the left and right sides of the movable seat (301) in opposite directions, and the front end of the movable seat (301) is fixedly connected to the connecting plate (304).

5. A slag removal device for a thermal power plant according to claim 4, characterized in that: The main body of the connecting plate (304) is an L-shaped structure, and a scraper (305) is fixedly connected to the bottom surface of the connecting plate (304). The bottom end of the scraper (305) is an inclined structure.

6. The slag removal device for a thermal power plant according to claim 1, characterized in that: The collar (201) is installed on the top output shaft of the servo motor (2), and the servo motor (2) is fixedly connected to the bottom surface of the furnace body (101).

7. A slag removal device for a thermal power plant according to claim 6, characterized in that: The furnace body (101) is a combustion furnace, and a base (1) is fixedly connected to the bottom end of the furnace body (101). A packing pipe (102) is fixedly connected to the front opening of the furnace body (101). A hatch (103) is fixedly connected to the front end of the packing pipe (102). A handle (104) is fixedly connected to the front end of the hatch (103). The packing pipe (102) and the furnace body (101) together form the packing and discharge structure.

Citation Information

Patent Citations

  • Automatic slag removal method and device for thermal power plant

    CN118242654A