Cleaning device for coal dropping pipe of coal feeder

Abstract

The utility model discloses a coal feeder coal drop pipe cleaning device. After coal slime is blended, due to the fact that the water content is large, fire coal falls into a coal falling pipe, the fire coal is often accumulated at a pipe opening of the coal falling pipe, and the coal falling pipe is blocked due to long-time accumulation. The device comprises a coal feeder (1) and a coal drop pipe (2), wherein a cleaning device (14) is fixed between an upper section (12) and a lower section (13) of the coal drop pipe; the cleaning device comprises a box body (4), two U-shaped retaining rings (11) which are symmetrically arranged up and down are fixed in the box body, a bearing (10) is fixed on the inner wall of each U-shaped retaining ring, the inner wall of each bearing is fixed on a scraping ring (7), and at least one scraping plate (6) is fixed on the inner wall of each scraping ring; and a gear ring (8) is fixed on the outer wall of the scraping ring and is meshed with a gear (9) fixed on an output shaft of a speed reducing motor (5). The device is used for cleaning the coal dropping pipe of the coal feeder.

Description

Technical Field

[0001] The utility model relates to a device for cleaning a coal dropping pipe of a coal feeder. Background Art

[0002] Coal resources are in short supply now, so in order to save energy and reduce power generation costs, power plants will mix some coal slime into the raw coal. After mixing with the coal slime, due to the high water content, the coal will often accumulate at the mouth of the coal pipe when it falls into the coal drop pipe. Long-term accumulation will cause the coal drop pipe to be blocked. Utility Model Content

[0003] The utility model aims to provide a device for cleaning a coal dropping pipe of a coal feeder, which solves the problems raised in the above-mentioned background technology.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0005] A coal feeder coal chute cleaning device, comprising a coal feeder and a coal chute, wherein a cleaning device is fixed between an upper section and a lower section of the coal chute;

[0006] The cleaning device comprises a box body, in which two U-shaped buckles arranged symmetrically up and down are fixed, a bearing is fixed on the inner wall of each U-shaped buckle, the inner wall of the bearing is fixed on the scraper ring, and at least one scraper is fixed on the inner wall of the scraper ring;

[0007] A gear ring is fixed on the outer wall of the scraper ring, and the gear ring is meshed with a gear fixed on the output shaft of the reduction motor.

[0008] The coal feeder coal drop pipe cleaning device, the scraper is a 7-type scraper.

[0009] In the coal feeder coal drop pipe cleaning device, the inner wall of the U-shaped buckle has a circle of evenly arranged air holes, and each of the U-shaped buckle is connected to the air inlet pipe respectively.

[0010] The coal feeder coal chute cleaning device, the upper section and the lower section of the coal chute are respectively connected to the box body by bolts. Beneficial Effects

[0011] 1. The utility model can drive the scraper ring to rotate through the drive of the reduction motor, so that the scraper can scrape coal from the pipe opening of the coal drop pipe, so as to dredge the pipe opening of the coal drop pipe.

[0012] 2. The utility model sets two symmetrically arranged U-shaped buckles, which are welded inside the box to form a compressed air cavity. After the compressed air is introduced, it is discharged through the air holes so that the compressed air is blown into the gap between the bearing and the box, thereby preventing coal powder from entering the gap and affecting the operation of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 This is the main view of the coal drop pipe;

[0015] Figure 3 This is a top view of the coal drop pipe;

[0016] Figure 4 for Figure 2 AA section view;

[0017] Figure 5 It is a schematic diagram of the internal structure of the cleaning device;

[0018] Figure 6 for Figure 4 A magnified view of part B;

[0019] In the figure: 1. coal feeder; 2. coal drop pipe; 3. air inlet pipe; 4. box body; 5. reduction motor; 6. scraper; 7. scraper ring; 8. gear ring; 9. gear; 10. bearing; 11. U-shaped buckle; 12. upper section; 13. lower section; 14. cleaning device; 15. air hole. DETAILED DESCRIPTION

[0020] See also Figures 1 to 6 A coal feeder coal chute cleaning device, comprising a coal feeder 1 and a coal chute 2, wherein a cleaning device 14 is fixed between an upper section 12 and a lower section 13 of the coal chute;

[0021] The upper section and the lower section of the coal drop pipe are respectively connected to the box body by bolts;

[0022] The cleaning device comprises a box body 4, in which two U-shaped buckle rings 11 are fixedly arranged symmetrically in the upper and lower parts, the U-shaped buckle ring at the upper end forms a compressed air cavity with the upper wall of the box body, and the U-shaped buckle ring at the lower end forms a compressed air cavity with the lower wall of the box body, the inner wall of the U-shaped buckle ring has a circle of evenly arranged air holes 15, each of the U-shaped buckle rings is communicated with the air inlet pipe 3 respectively, the device needs to be constantly fed with compressed air, and the compressed air will be ejected through the air holes after entering the air cavity through the air inlet pipe, so that the gas will be discharged through the gap between the bearing and the box body, so that coal powder can be prevented from entering through this gap and affecting the operation of the device, and at the same time can play an effective sealing role, a bearing 10 is fixed at the inner wall of each U-shaped buckle ring, the inner wall of the bearing is fixed on the scraper ring 7, and at least one scraper 6 is fixed to the inner wall of the scraper ring, and the scraper is a 7-type scraper, which can effectively scrape the accumulated coal at the pipe mouth of the coal drop pipe;

[0023] A gear ring 8 is fixed to the outer wall of the scraper ring, and the gear ring is meshed with a gear 9 fixed on the output shaft of the reduction motor 5 .

[0024] Working principle: When in use, start the reduction motor, which drives the gear to rotate. The gear meshes with the gear ring, driving the gear ring to rotate, causing the scraper ring to rotate. The scraper will scrape the inner wall of the coal drop pipe and the pipe mouth, effectively scraping off the accumulated coal on it.

Claims

1. A coal feeder coal chute cleaning device, comprising a coal feeder and a coal chute, characterized in that: A cleaning device is fixed between the upper section and the lower section of the coal drop pipe; The cleaning device comprises a box body, in which two U-shaped buckles arranged symmetrically up and down are fixed, a bearing is fixed on the inner wall of each U-shaped buckle, the inner wall of the bearing is fixed on the scraper ring, and at least one scraper is fixed on the inner wall of the scraper ring; A gear ring is fixed on the outer wall of the scraper ring, and the gear ring is meshed with a gear fixed on the output shaft of the reduction motor.

2. The coal feeder coal drop pipe cleaning device according to claim 1 is characterized in that: The scraper is a 7-type scraper.

3. The coal feeder coal drop pipe cleaning device according to claim 2 is characterized in that: The inner wall of the U-shaped buckle ring has a circle of evenly arranged air holes, and each of the U-shaped buckle rings is connected to the air inlet pipe respectively.

4. The coal feeder coal drop pipe cleaning device according to claim 3 is characterized in that: The upper section and the lower section of the coal drop pipe are respectively connected to the box body by bolts.

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