A type of anti-clogging feed pipe

Abstract

Anti-clogging feed pipe. Clogging of inclined pipes in thermal power plants is caused by the presence of large amounts of sticky coal, coal slime, and pulverized coal in the coal, resulting in insufficient smoothness of the inner wall of the pipe during transportation, leading to blockage. This invention comprises: a circular hole on the outer wall of the feed pipe; a positioning tube welded to the outside of the circular hole; a connecting rod installed inside the positioning tube; a cutting tool welded to one end of the connecting rod; a dovetail groove welded to the other end of the connecting rod; a slider installed inside the dovetail groove; the slider hinged to one end of a rocker arm; and the other end of the rocker arm connected to the output shaft of a motor. This invention is used to prevent clogging of the feed pipe.

Description

Technical Field

[0001] This utility model relates to an anti-clogging feed pipe. Background Technology

[0002] In thermal power plants, large quantities of coal need to be continuously transported into the boiler furnace through pipelines. These coal transport pipelines have many shortcomings, being prone to blockages that severely impact production efficiency and plant output. Experimental observations revealed that the blockages are caused by the presence of large amounts of sticky coal, coal slurry, and pulverized coal in the coal. Ordinary inclined coal chutes are easily clogged. Furthermore, blockages require manual clearing, which is both unsafe and increases labor and production management costs. Failure to address pipeline blockages promptly can lead to serious safety accidents. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides an anti-clogging feed pipe, which solves the problems mentioned in the background section.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] An anti-clogging feeding pipe comprises a feeding pipe with a circular hole on its outer wall, a positioning tube welded to the outside of the circular hole, a connecting rod installed inside the positioning tube, a cutting tool welded to one end of the connecting rod, a dovetail groove welded to the other end of the connecting rod, a slider installed inside the dovetail groove, the slider being hinged to one end of a rocker arm, and the other end of the rocker arm being connected to the output shaft of a motor.

[0006] The aforementioned anti-clogging feed tube has the cutting tool fitting against the inner wall of the feed tube.

[0007] The aforementioned anti-clogging feed pipe has a track groove at the bottom of the dovetail groove. One end of the connecting shaft passes through the round hole of the slider and the track groove of the dovetail groove, and is limited by a shaft elastic retaining ring and a positioning ring. The other end of the connecting shaft passes through the round hole at one end of the rocker arm, and is limited by a shaft elastic retaining ring and a positioning ring. A key is installed between the other end of the rocker arm and the output shaft of the motor. A positioning nut is installed at the outer end of the rocker arm.

[0008] In the aforementioned anti-clogging feed tube, the upper and right end faces of the cutting tool are inclined surfaces. Beneficial effects

[0009] 1. This utility model uses a servo motor for remote operation, avoiding personal dangers during operation and the risk of operators ingesting scattered coal ash, thus reducing the probability of serious illnesses.

[0010] 2. This utility model adopts a servo motor driven structure, which can handle coal blockage problems more quickly, save a lot of time in handling problems, and reduce factory losses.

[0011] 3. This utility model uses a triangular cutter, which can effectively separate the material adhering to the inner wall of the feed pipe from the feed pipe, thus smoothly clearing the blocked feed pipe. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a top view of the present invention;

[0014] Figure 3 for Figure 2 Enlarged view of point A;

[0015] Figure 4 for Figure 2 Enlarged view of point B;

[0016] Figure 5 This is a front view of the cutting tool of this utility model;

[0017] Figure 6 This is a left view of the cutting tool of this utility model;

[0018] Figure 7 This is a top view of the cutting tool of this utility model;

[0019] Figure 8 This is a schematic diagram of the dovetail groove structure of this utility model;

[0020] In the diagram: 1. Motor; 2. Output shaft; 3. Rocker arm; 4. Connecting rod; 5. Key; 6. Positioning nut; 7. Positioning tube; 8. Cutting tool; 9. Feed tube; 10. Connecting shaft; 11. Dovetail groove; 12. Shaft elastic retaining ring; 13. Positioning ring; 14. Slider; 15. Track groove. Detailed Implementation

[0021] Reference Figure 1-6 A clog-resistant feeding pipe comprises a feeding pipe 9, the outer wall of which has a circular hole, a positioning tube 7 welded to the outside of the circular hole, a connecting rod 4 installed inside the positioning tube, a cutting tool 8 welded to one end of the connecting rod, a dovetail groove 11 welded to the other end of the connecting rod, a slider 14 installed inside the dovetail groove 11, the slider being hinged to one end of a rocker arm 3, and the other end of the rocker arm 3 being connected to the output shaft 2 of a motor 1.

[0022] The cutting tool is in contact with the inner wall of the feed tube.

[0023] The bottom of the dovetail groove is provided with a track groove 15. One end of the connecting shaft 10 passes through the round hole of the slider and the track groove of the dovetail groove, and is limited by the shaft elastic retaining ring 12 and the positioning ring 13. The other end of the connecting shaft passes through the round hole at one end of the rocker arm, and is limited by the shaft elastic retaining ring 12 and the positioning ring 13. A key 5 is installed between the other end of the rocker arm and the output shaft of the motor. A positioning nut 6 is installed at the outer end of the rocker arm.

[0024] The upper and right ends of the cutting tool are inclined surfaces, which allows the cutting tool to fit tightly against the inner wall of the feed tube.

[0025] Working principle: When there is a blockage in the feed pipe, the motor is started, the motor output shaft rotates, driving the rocker arm to rotate. The rocker arm drives the slider to move up and down in the dovetail groove. At the same time, the connecting rod drives the cutter to move back and forth in the feed pipe, separating the coal stuck to the pipe wall from the pipe wall and clearing the blockage.

Claims

1. A choke free draw-off tube consisting of a draw-off tube, characterized in that: The outer wall of the blanking pipe is provided with a round hole, a positioning pipe is welded outside the round hole, a connecting rod is arranged in the positioning pipe, a cutter is welded at one end of the connecting rod, a dovetail groove is welded at the other end of the connecting rod, a sliding block is arranged in the dovetail groove, one end of a rocker is hinged to the sliding block, and the other end of the rocker is connected with the output shaft of a motor.

2. The anti-jamming downcomer of claim 1, wherein: The cutter is attached to the inner wall of the blanking pipe.

3. The anti-jamming spout of claim 1, wherein: The bottom of the dovetail groove is provided with a track groove, one end of a connecting shaft passes through the round hole of the sliding block and the track groove of the dovetail groove, and is limited by an elastic retaining ring and a positioning ring, the other end of the connecting shaft passes through the round hole of one end of the rocker, and is limited by an elastic retaining ring and a positioning ring, a key is arranged between the other end of the rocker and the output shaft of the motor, and the outer end of the rocker is provided with a positioning nut.

4. The anti-jamming spout of claim 1, wherein: The upper end surface and the right end surface of the cutter are inclined surfaces.

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