Rotary kiln tail discharging slope structure

Abstract

The utility model discloses a discharging slope structure at the tail of a rotary kiln. The discharging slope structure comprises an outer material taking device and an inner material taking device, the external material taking device comprises a butt joint pipe and a detection pipe, one end of the butt joint pipe is connected with one end of the detection pipe, the central axis of the butt joint pipe coincides with the central axis of the detection pipe, the inner diameter of the detection pipe is larger than that of the butt joint pipe, and a first material taking opening is formed in the side face of the butt joint pipe; the inner material taking device comprises an inner pipe, a second material taking opening is formed in the side face of the inner pipe, and an outer connecting ring is arranged on the outer edge of one end opening of the inner pipe. The inner pipe is arranged in the butt joint pipe, the inner pipe and the butt joint pipe are concentrically arranged, the first material taking opening and the second material taking opening are correspondingly arranged, the inner material taking device comprises a gear cover, a circular boss is arranged on one end face of the gear cover, material components and material gas components can be conveniently sampled and inspected, and the material taking device is convenient to use. And the feeding ratio of the material is adjusted according to the material gas component detection result.

Description

Technical Field

[0001] This utility model relates to the field of dust removal technology for coal mills, specifically to a rotary kiln tail discharge ramp structure. Background Technology

[0002] Rotary kilns are important pieces of equipment widely used in industries such as metallurgy, chemicals, and building materials. In traditional industrial production, the demand for high-temperature material processing is constantly increasing. Early processing methods were inefficient, energy-intensive, and unable to guarantee consistent product quality. With technological advancements, rotary kilns emerged. Through the slow rotation of the kiln, materials are heated evenly at high temperatures, achieving efficient calcination, roasting, and other processes.

[0003] When calcining inside a rotary kiln, it is difficult to detect the composition of the material. The only way to determine whether the material composition ratio is up to standard is based on the finished product. This method is inefficient and costly. Utility Model Content

[0004] Based on the above-mentioned problems in the existing technology, the purpose of this utility model embodiment is to provide a rotary kiln tail discharge slope structure, which facilitates the sampling and inspection of the gas composition of the material, and adjusts the material feed ratio according to the detection results of the gas composition of the material.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a rotary kiln tail material feeding ramp structure, including an external material receiving device and an internal material receiving device;

[0006] The external material handling device includes a connecting pipe and a detection pipe. One end of the connecting pipe is connected to one end of the detection pipe, and the central axes of the connecting pipe and the detection pipe coincide. The inner diameter of the detection pipe is larger than the inner diameter of the connecting pipe. A material handling port is provided on the side of the connecting pipe.

[0007] The internal material handling device includes an inner tube, and a second material handling port is provided on the side of the inner tube. An outer ring is provided on the outer edge of one of the ports of the inner tube.

[0008] The inner tube is located inside the connecting tube, and the inner tube and the connecting tube are concentrically arranged, and the first material inlet and the second material inlet are correspondingly arranged.

[0009] Furthermore, the internal material handling device includes a gear cover, on one end face of which is a circular boss. A through hole is provided at the circular part of the circular boss, which connects the circular boss and the gear cover. A sealing ring is embedded on the outer side of the circular boss.

[0010] The gear cover is placed over the port of the detection tube away from the connecting tube, and the outer wall of the circular boss is in contact with the inner wall of the detection tube.

[0011] Furthermore, a connecting rod is provided on the circular boss, and the end of the connecting rod away from the circular boss is fixedly connected to the outer ring.

[0012] Furthermore, the outer side of the detection tube is provided with two detection interfaces, and the outer side of the detection tube is provided with a thickened part.

[0013] Furthermore, it includes a pushing device, which includes a first pushing plate, a second pushing plate, a pushing rod, and a driving rod;

[0014] The first pusher plate and the second pusher plate are symmetrically arranged. The two ends of the pusher rod are fixedly connected to the first pusher plate and the second pusher plate respectively. One end of the drive rod is fixed to the end face of the second pusher plate away from the pusher rod.

[0015] Both the first pusher plate and the second pusher plate are slidably disposed inside the inner tube, and the pusher rod passes through the perforation.

[0016] A second sealing ring is embedded in the inner side of the circular boss, and the inner wall of the perforation is in contact with the drive rod.

[0017] Furthermore, the pushing device includes a cylinder;

[0018] The end of the drive rod away from the pusher plate 2 is inserted into the cylinder, and a piston is provided at this end. The outer side of the cylinder is provided with a thickened part 2.

[0019] Compared with the prior art, the beneficial effects achieved by this utility model are:

[0020] 1. Install the connecting pipe at the material discharge point of the rotary kiln tail. The connecting pipe extends into the interior of the rotary kiln. Drive the gear cover to rotate through the external torque so that the second material outlet corresponds to the first material outlet. The gas in the material enters the inner tube through the first and second material outlets. Then rotate the gear cover to make the second material outlet and the first material outlet misaligned, and the first material outlet closed, thus completing the gas sampling of the material.

[0021] 2. The piston movement inside the cylinder is controlled by an air pump. When the piston moves to the top of the cylinder, it drives the pusher plate 2, pusher rod and pusher plate 1 to move through the drive rod. Pusher plate 1 and pusher plate 2 drag the gas falling into the inner tube to the inside of the detection tube. The gas in the material is discharged through the detection interface. It can be understood that when the gas analyzer is connected to the detection interface, it is used to analyze the proportion of gas components in the material. The material composition ratio can be judged based on the gas composition detection results, thereby adjusting the material feed composition ratio.

[0022] 3. Control the piston to drive the pusher plate 2, pusher rod and pusher plate 1 to move in opposite directions, so as to push the material fragments that fall into the inner tube to the outside of the inner tube and ensure the cleanliness of the inside of the inner tube. Attached Figure Description

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] In the picture:

[0025] Figure 1 This is a three-dimensional schematic diagram of the material feeding ramp structure in this utility model;

[0026] Figure 2 This is an exploded view of the material feeding ramp structure in this utility model;

[0027] Figure 3 yes Figure 1 A three-dimensional schematic diagram of the external material handling device in the middle;

[0028] Figure 4 yes Figure 1 A three-dimensional schematic diagram of the internal material handling device;

[0029] Figure 5 yes Figure 1 A three-dimensional schematic diagram of the feeding device in the middle;

[0030] Figure 6 This is a cross-sectional view of the material feeding ramp structure in this utility model;

[0031] In the picture:

[0032] 1. External material handling device;

[0033] 11. Connecting tube; 12. Testing tube;

[0034] 110. Material inlet 1;

[0035] 121. Detection interface; 122. Thickened part one;

[0036] 2. Internal material handling device;

[0037] 21. Inner tube; 22. Gear cover;

[0038] 210. Material inlet two; 211. External connecting ring;

[0039] 220. Perforation; 221. Circular boss; 222. Sealing ring one; 223. Connecting rod; 224. Sealing ring two;

[0040] 3. Material feeding device;

[0041] 31. Pusher plate one; 32. Pusher plate two; 33. Pusher rod; 34. Drive rod; 35. Cylinder;

[0042] 341. Piston;

[0043] 351. Thickened Part Two. Detailed Implementation

[0044] The present invention will now be described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0045] Please see Figure 1-6 The present invention provides a technical solution: a rotary kiln tail discharge ramp structure, including an external material handling device 1, an internal material handling device 2, and a material pushing device 3.

[0046] The external material handling device 1 includes a connecting pipe 11 and a detection pipe 12.

[0047] One end of the connecting pipe 11 is connected to one end of the detection pipe 12, and the central axes of the connecting pipe 11 and the detection pipe 12 coincide. The inner diameter of the detection pipe 12 is larger than the inner diameter of the connecting pipe 11. A material inlet 110 is provided on the side of the connecting pipe 11. Two detection interfaces 121 are provided on the outer side of the detection pipe 12. A thickened part 122 is provided on the outer side of the detection pipe 12.

[0048] The internal material handling device 2 includes an inner tube 21 and a gear cover 22.

[0049] The inner tube 21 has a material inlet 210 on its side. One of the ports of the inner tube 21 has an outer ring 211 on its outer edge. The inner tube 21 is located inside the connecting tube 11 and the inner tube 21 and the connecting tube 11 are concentrically arranged. The material inlet 110 and the material inlet 210 are arranged correspondingly.

[0050] A circular boss 221 is provided on one end face of the gear cover 22. A through hole 220 is provided at the circular part of the circular boss 221, which connects the circular boss 221 and the gear cover 22. A sealing ring 222 is embedded on the outer side of the circular boss 221. The gear cover 22 seals the port of the detection tube 12 away from the connecting tube 11, and the outer side wall of the circular boss 221 fits against the inner side wall of the detection tube 12. A connecting rod 223 is provided on the circular boss 221. The end of the connecting rod 223 away from the circular boss 221 is fixedly connected to the outer ring 211.

[0051] The feeding device 3 includes a feeding disc 31, a feeding disc 32, a feeding rod 33, a drive rod 34, and a cylinder 35.

[0052] Pusher disc 1 31 and pusher disc 2 32 are symmetrically arranged. The two ends of pusher rod 33 are fixedly connected to pusher disc 1 31 and pusher disc 2 32 respectively. One end of drive rod 34 is fixed to the end face of pusher disc 2 32 away from pusher rod 33. Pusher disc 1 31 and pusher disc 2 32 are slidably disposed inside inner tube 21. Pusher rod 33 passes through through hole 220. Sealing ring 224 is embedded in the inner side of circular boss 221. The inner wall of through hole 220 is in contact with drive rod 34. The end of drive rod 34 away from pusher disc 2 32 passes into cylinder 35 and is provided with piston 341. Thickened part 2 351 is provided on the outer side of cylinder 35.

[0053] The connecting pipe 11 is installed at the material discharge point of the rotary kiln tail. The connecting pipe 11 extends into the interior of the rotary kiln. The gear cover 22 is rotated by external torque, so that the second material intake port 210 and the first material intake port 110 correspond. The gas in the material enters the inner tube 21 through the first material intake port 110 and the second material intake port 210. Then, the gear cover 22 is rotated, so that the second material intake port 210 and the first material intake port 110 are misaligned, and the first material intake port 110 is closed, thus completing the material gas sampling.

[0054] In some embodiments, cylinder 35 is connected to an air pump (not shown), and the air pump controls the movement of piston 341 inside cylinder 35. When piston 341 moves to the top of cylinder 35, it drives pusher plate 2 32, pusher rod 33 and pusher plate 1 31 to move through drive rod 34. Pusher plate 1 31 and pusher plate 2 32 drag the gas falling into inner tube 21 to the inside of detection tube 12. The gas in the material is discharged through detection interface 121. It can be understood that when the detection interface 121 is connected to a gas analyzer to analyze the proportion of gas components in the material, the material composition ratio can be determined based on the detection results of gas components in the material, thereby adjusting the feeding composition ratio of the material.

[0055] In addition, the control piston 341 drives the pusher plate 2 32, the pusher rod 33 and the pusher plate 1 31 to move in the opposite direction through the drive rod 34, so as to push the material fragments that fall into the inner tube 21 to the outside of the inner tube 21, ensuring that the inside of the inner tube 21 is clean.

[0056] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the scope of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A rotary kiln tail end discharge ramp structure, characterized in that: The external material taking device and the internal material taking device are provided. The external material taking device comprises a docking pipe and a detection pipe, one end of the docking pipe is connected with one end of the detection pipe, the central axes of the docking pipe and the detection pipe coincide, the inner diameter of the detection pipe is larger than the inner diameter of the docking pipe, and a material taking port one is arranged on the side surface of the docking pipe. The internal material taking device comprises an internal pipe, a material taking port two is arranged on the side surface of the internal pipe, and an external connecting ring is arranged on the outer edge of one port of the internal pipe. The internal pipe is arranged inside the docking pipe, the internal pipe and the docking pipe are arranged concentrically, and the material taking port one and the material taking port two are arranged correspondingly.

2. A rotary kiln tail dusting ramp structure according to claim 1, characterized in that: The gear cover is provided with a circular boss on one end surface, a through hole is arranged on the circular boss, the through hole penetrates the circular boss and the gear cover, and a sealing ring one is embedded on the outer side of the circular boss. The gear cover is arranged on the port of the detection pipe away from the docking pipe, and the outer side wall of the circular boss is attached to the inner side wall of the detection pipe.

3. A rotary kiln tail dusting ramp structure according to claim 2, characterized in that: A connecting rod is arranged on the circular boss, one end of the connecting rod away from the circular boss is fixedly connected with the external connecting ring.

4. The kiln tail discharge ramp structure according to claim 1, wherein: Two detection interfaces are arranged on the outer side of the detection pipe, and a thickened part one is arranged on the outer side of the detection pipe.

5. A rotary kiln tail dusting ramp structure according to claim 2, characterized in that: The pushing device comprises a pushing disc one, a pushing disc two, a pushing rod and a driving rod. The pushing disc one and the pushing disc two are arranged symmetrically, the two ends of the pushing rod are fixedly connected with the pushing disc one and the pushing disc two respectively, and one end of the driving rod is fixedly connected with the end surface of the pushing disc two away from the pushing rod. The pushing disc one and the pushing disc two are arranged inside the internal pipe, the pushing rod passes through the through hole. A sealing ring two is embedded on the inner side of the circular boss, and the inner wall of the through hole is attached to the driving rod.

6. A rotary kiln tail dusting ramp structure according to claim 5, characterised in that: The pushing device comprises a cylinder. One end of the driving rod away from the pushing disc two penetrates into the inside of the cylinder, and the end portion is provided with a piston, and the outer side of the cylinder is provided with a thickened part two.

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