Needle coke calcining device using coal bed gas

Abstract

The utility model belongs to the technical field of needle coke production equipment, and particularly relates to a needle coke calcining device using coal bed gas, which comprises an inclined rotary kiln, and a kiln head and a kiln tail are respectively arranged at two ends of the rotary kiln; a coal bed gas burner is arranged on the kiln head, and a feeding structure is arranged at the kiln tail; the feeding structure comprises a feeding barrel, and an inclined pipe inserted into the rotary kiln is arranged on the feeding barrel. A feeding hopper is arranged on the feeding barrel, and a feeding assembly is arranged on the feeding barrel; the feeding assembly comprises a main shaft rotationally connected with the feeding barrel, and a propeller is arranged on the main shaft; a mounting frame is further fixedly connected to the main shaft, and a plurality of scraping plates corresponding to the inner wall of the feeding barrel are uniformly distributed on the mounting frame along the circumference; the needle coke calcining device effectively solves the problems that an existing needle coke calcining device is poor in feeding uniformity and slow in reaction in the temperature raising process.

Description

Technical Field

[0001] The utility model belongs to the technical field of needle coke production equipment, and particularly relates to a needle coke calcining device using coalbed methane. Background Art

[0002] During the needle coke production process, the calcining device is used to calcine the delayed pitch coke at a high temperature of 1500℃, thereby changing the internal structure of the needle coke, making the needle coke more textured, and improving the thermal conductivity and true density. During the high-temperature calcination process in the calcining device, a rotary kiln is required to provide a heat source to achieve high-temperature calcination of the needle coke.

[0003] The existing calcining device has the following technical problems when in use: 1. When adding materials, delayed pitch coke is mostly fed into the calcining device for calcination through a simple feeding bucket combined with an inclined pipe, resulting in poor uniformity in the addition of delayed pitch coke, which affects the calcination of the delayed pitch coke; 2. During calcination, coke oven gas is usually used as fuel, but the calorific value of coke oven gas is low, and the reaction is slow during the temperature increase process in the calcining device, which affects process adjustment and product quality stability. Utility Model Content

[0004] In view of the above situation, in order to overcome the defects of the existing technology, the utility model provides a needle coke calcining device using coalbed methane, which effectively solves the problems of poor feeding uniformity and slow reaction during the temperature increase process of the existing needle coke calcining device.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a needle coke calcining device using coalbed methane, comprising an inclined rotary kiln, with a kiln head and a kiln tail respectively provided at both ends of the rotary kiln; a coalbed methane burner is provided on the kiln head, and a feeding structure is provided on the kiln tail; the feeding structure comprises a feeding barrel, which is provided with an inclined pipe inserted into the rotary kiln; a feeding hopper is provided on the feeding barrel, and a feeding assembly is provided on the feeding barrel; the feeding assembly comprises a main shaft rotatably connected to the feeding barrel, and a propeller is provided on the main shaft; a mounting frame is also fixedly connected to the main shaft, and a plurality of scrapers corresponding to the inner wall of the feeding barrel are evenly distributed on the mounting frame along the circumference.

[0006] Furthermore, the feeding barrel includes a discharge barrel, a guide barrel is fixedly connected to the discharge barrel, and a connecting port connected to the oblique pipe is provided on the guide barrel.

[0007] Furthermore, the discharge barrel is provided with a feeding port corresponding to the feeding hopper, and a guide plate cooperating with the feeding port is provided in the feeding port.

[0008] Furthermore, a motor is fixedly connected to the discharge barrel, and an output end of the motor is fixedly connected to the main shaft.

[0009] Furthermore, one end of the scraper is in contact with the inner wall of the feeding barrel, and the other end of the scraper is smaller than the diameter of the feeding barrel.

[0010] Furthermore, a fixing rod fixedly connected to the scraper is fixedly connected to the main shaft.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] 1. When the utility model is in use, the main shaft drives the propeller to rotate, so that the delayed pitch coke flows continuously and stably to the inclined pipe and enters the rotary kiln through the inclined pipe, so as to improve the uniformity of the feeding of the present application; in addition, the delayed pitch coke near the inner wall of the feeding barrel is driven by the scraper to move toward the propeller, so as to improve the uniformity of the propeller feeding.

[0013] 2. When the utility model is in use, the rotary kiln is heated by the coalbed methane burner, so that the rotary kiln can adjust the temperature quickly and react sensitively, which greatly improves the flexibility of process adjustment and the stability of product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram of the utility model;

[0015] Figure 2 It is a structural diagram of the feeding structure in the utility model;

[0016] Figure 3 This is a schematic structural diagram of the feeding assembly in the present utility model;

[0017] In the figure: 1. Feeding structure, 2. Kiln tail, 3. Rotary kiln, 4. Kiln head, 5. Coalbed methane burner, 6. Feeding hopper, 7. Discharge barrel, 8. Guide tube, 9. Guide plate, 10. Motor, 11. Mounting frame, 12. Scraper, 13. Propeller, 14. Fixed rod, 15. Main shaft. DETAILED DESCRIPTION

[0018] A needle coke calcining device using coalbed methane, such as Figure 1-3 As shown, the rotary kiln 3 is tilted and provided with a kiln head 4 and a kiln tail 2 at both ends thereof. The kiln head 4 is provided with a coalbed methane burner 5, and the kiln tail 2 is provided with a feeding structure 1. The rotary kiln 3 is fed with material through the feeding structure 1 so that delayed pitch coke enters the rotary kiln 3 evenly. In addition, the rotary kiln 3 is heated by the coalbed methane burner 5 so that the rotary kiln 3 can adjust its temperature quickly and react sensitively, thereby greatly improving the flexibility of process adjustment and the stability of product quality.

[0019] Furthermore, the feeding structure 1 includes a feeding barrel, which is provided with an inclined tube inserted into the rotary kiln 3; the feeding barrel is provided with a feeding hopper 6, and the feeding barrel is provided with a feeding assembly; the feeding assembly includes a motor 10 fixed to the feeding barrel, the output end of the motor 10 is fixedly connected to a main shaft 15, and the main shaft 15 is provided with a propeller 13; the main shaft 15 is also fixedly connected to a mounting frame 11, and the mounting frame 11 is evenly distributed along the circumference with multiple scrapers 12 corresponding to the inner wall of the feeding barrel; one end of the scraper 12 is in contact with the inner wall of the feeding barrel, and the other end of the scraper 12 is smaller than the diameter of the feeding barrel.

[0020] When the feeding structure 1 is in use, the delayed asphalt coke is fed into the feeding hopper 6, and the delayed asphalt coke enters the feeding barrel through the feeding hopper 6; the motor 10 is started, and the motor 10 drives the propeller 13 to rotate through the main shaft 15, and the propeller 13 drives the delayed asphalt coke to flow toward the oblique pipe; the delayed asphalt coke is made to flow evenly toward the oblique pipe through the propeller 13, so that the delayed asphalt coke enters the rotary kiln 3 evenly; when the main shaft 15 rotates, it drives the scraper 12 to clean the inner wall of the feeding barrel to prevent the delayed asphalt coke from sticking to the inner wall of the feeding barrel; in addition, the scraper 12 can also drive the delayed asphalt coke close to the inner wall of the feeding barrel to move toward the propeller 13 to improve the uniformity of the feeding of the propeller 13.

[0021] Furthermore, the feeding barrel includes a discharge barrel 7 , a guide barrel 8 is fixedly connected to the discharge barrel 7 , and a communication port communicating with the oblique pipe is provided on the guide barrel 8 ; the delayed pitch coke is guided through the guide barrel 8 .

[0022] Furthermore, the discharge barrel 7 is provided with a feeding port corresponding to the feeding hopper 6 , and a guide plate 9 cooperating with the feeding port is provided in the feeding port; the delayed pitch coke at the feeding hopper 6 is guided into the discharge barrel 7 by the guide plate 9 .

[0023] Furthermore, a fixing rod 14 fixed to the scraper 12 is fixed to the main shaft 15 to improve the stability of the scraper 12 .

Claims

1. A needle coke calcining device using coalbed methane, characterized by: The rotary kiln (3) comprises an inclined rotary kiln (3), wherein a kiln head (4) and a kiln tail (2) are respectively provided at both ends of the rotary kiln (3); a coalbed methane burner (5) is provided on the kiln head (4), and a feeding structure (1) is provided on the kiln tail (2); the feeding structure (1) comprises a feeding barrel, wherein the feeding barrel is provided with an inclined pipe inserted into the rotary kiln (3); the feeding barrel is provided with a feeding hopper (6), and the feeding barrel is provided with a feeding assembly; the feeding assembly comprises a main shaft (15) rotatably connected to the feeding barrel, wherein the main shaft (15) is provided with a propeller (13); the main shaft (15) is further fixed with a mounting frame (11), and the mounting frame (11) is evenly distributed along the circumference with a plurality of scrapers (12) corresponding to the inner wall of the feeding barrel.

2. The needle coke calcining device using coalbed methane according to claim 1, characterized in that: The feeding barrel comprises a lower material barrel (7), a flow guide barrel (8) is fixedly connected to the lower material barrel (7), and a communication port communicating with the oblique pipe is provided on the flow guide barrel (8).

3. The needle coke calcining device using coalbed methane according to claim 2, characterized in that: The discharge barrel (7) is provided with a feeding port corresponding to the feeding hopper (6), and a guide plate (9) is provided in the feeding port to match the feeding port.

4. The needle coke calcining device using coalbed methane according to claim 2, characterized in that: A motor (10) is fixedly connected to the discharge barrel (7), and an output end of the motor (10) is fixedly connected to the main shaft (15).

5. The needle coke calcining device using coalbed methane according to claim 1, characterized in that: One end of the scraper (12) is in contact with the inner wall of the feeding barrel, and the other end of the scraper (12) is smaller than the diameter of the feeding barrel.

6. The needle coke calcining device using coalbed methane according to claim 1, characterized in that: A fixing rod (14) fixedly connected to the scraper (12) is fixedly connected to the main shaft (15).

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