Cooling device for blanking pipe of needle coke rotary kiln

Abstract

The utility model belongs to the technical field of needle coke processing, and particularly discloses a needle coke rotary kiln discharging pipe cooling device which comprises a discharging pipe body, a cooling sleeve is connected to the middle of the outer wall of the discharging pipe body, a gas conveying assembly is connected to one side of the lower end of the cooling sleeve, the gas conveying assembly can convey gas into the discharging pipe body, and the discharging pipe body is connected with the cooling sleeve. According to the feeding pipe, cold air can be directly conveyed into the feeding pipe, needle coke materials passing through the interior of the feeding pipe are directly cooled, meanwhile, the outer wall of the feeding pipe is cooled, the cooling assembly is connected to the lower portion of one side of the cooling sleeve, and separation assemblies are connected to the upper portion and the lower portion of the inner wall of the feeding pipe body. The discharging pipe is prevented from being in a high-temperature environment for a long time, the service life of the discharging pipe is prolonged, needle coke materials discharged from the interior of the discharging pipe can be separated, and the situation that due to adhesion of the needle coke materials, discharging of the discharging pipe is not smooth or blocked is avoided.

Description

Technical Field

[0001] This utility model belongs to the field of needle coke processing technology, and specifically relates to a cooling device for the feed pipe of a needle coke rotary kiln. Background Technology

[0002] Needle coke is a high-quality variety of carbon materials that is being vigorously developed. It is a porous solid with a silvery-gray appearance and a metallic luster. Its structure has obvious flow texture, with large and few pores that are slightly elliptical. The particles have a large length-to-width ratio and a fibrous or needle-like texture. It feels smooth to the touch. It is a raw material for producing high-end carbon products such as ultra-high power electrodes, special carbon materials, carbon fibers and their composites. Depending on the raw materials used, needle coke can be divided into two types: oil-based needle coke and coal-based needle coke. Needle coke produced from petroleum residue oil is oil-based needle coke; needle coke produced from coal tar pitch and its distillates is coal-based needle coke.

[0003] Currently, needle coke is processed inside the rotary kiln and then enters the cooling equipment through the feed pipe. However, due to the excessively high temperature of the needle coke, the current feed pipe does not have a cooling function. As a result, under high temperature conditions, the needle coke material tends to stick to the inner wall of the feed pipe, causing poor feeding or blockage. At the same time, the needle coke material tends to stick together, resulting in uneven feeding. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a cooling device for the feed pipe of a needle coke rotary kiln.

[0005] To achieve the above objectives, this utility model provides a cooling device for the feed pipe of a needle coke rotary kiln, including a feed pipe body, a cooling sleeve connected to the middle of the outer wall of the feed pipe body, and a gas conveying component connected to one side of the lower end of the cooling sleeve.

[0006] The gas delivery assembly can deliver gas into the inside of the feed pipe body;

[0007] A cooling assembly is connected to the lower part of one side of the cooling sleeve;

[0008] Separation components are connected to both the upper and lower parts of the inner wall of the feed pipe.

[0009] In the above technical solution, the gas conveying assembly further includes an air inlet pipe, the upper end of which extends through into the interior of the cooling sleeve, a fixed pipe is connected to the upper end of the air inlet pipe, and gas conveying pipes are circumferentially connected to the upper ends of the fixed pipes. A jet nozzle is evenly connected to one side of a plurality of gas conveying pipes, and one end of a plurality of jet nozzles extends through into the interior of the feed pipe body.

[0010] In the above technical solution, one end of each of the multiple jet heads is connected to a screen plate, and the feed pipe body is provided with an opening corresponding to each of the multiple jet heads. Each of the multiple jet heads is located inside the multiple openings, and the multiple screen plates are connected to one side of the inner wall of each of the multiple openings.

[0011] In the above technical solution, the cooling component further includes a water tank, a water pump connected to the lower middle part of the inner wall of the water tank, a water outlet pipe connected to one side of the inner wall of the water tank, one end of the water outlet pipe passing through the water tank and the cooling sleeve in sequence and extending into the interior of the cooling sleeve, a water supply pipe connected to the output end of the water pump, one end of the water supply pipe passing through the water tank and the cooling sleeve in sequence and extending into the interior of the cooling sleeve, a support pipe connected to one end of the water supply pipe, connecting pipes evenly circumferentially connected to the lower end of the support pipe, and water mist spray heads evenly connected to one side of multiple connecting pipes.

[0012] In the above technical solution, the separation component further includes a connecting ring, with slide rods evenly connected to the upper end of the connecting ring. A buffer ring is sleeved on the outer wall of each slide rod, and a guide ring is connected to the upper end of the buffer ring. The guide ring slides on the outer wall of each slide rod. A retaining ring is connected to the lower end of the buffer ring, and one side of the outer wall of the retaining ring is slidably connected to one side of the inner wall of the connecting ring. A buffer spring is connected to the upper end of the connecting ring corresponding to each slide rod, and the buffer springs are sleeved on the outer wall of each slide rod. The upper ends of the buffer springs are connected to the lower end of the guide ring. Support rods are circumferentially connected to the inner wall of each guide ring, and a support block is connected to one end of each support rod.

[0013] In the above technical solution, further, the upper middle part of the support block is evenly connected to the upper ends of multiple support rods with insert rods, and the insert rods are arranged in an inverted V-shaped structure.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] By incorporating a cooling jacket, air inlet pipe, fixed pipe, air delivery pipe, jet nozzle, water tank, water pump, water outlet pipe, water delivery pipe, support pipe, connecting pipe, and water mist spray nozzle, cold air can be directly delivered to the inside of the feeding pipe to cool the needle coke material passing through it. This reduces the temperature of the needle coke and prevents it from sticking together. Simultaneously, it cools the outer wall of the feeding pipe, improving the cooling effect on the needle coke inside and preventing the feeding pipe from being exposed to high temperatures for extended periods, thus extending its service life.

[0016] By using a connecting ring, sliding rod, buffer ring, guide ring, retaining ring, buffer spring, support rod, support block and insert rod, the needle coke material discharged inside the feed pipe can be separated, avoiding the adhesion of needle coke material, which could lead to poor or blocked feed pipe, and ensuring smooth material flow. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure proposed in this utility model;

[0018] Figure 2 This is a cross-sectional view of the present invention;

[0019] Figure 3 The present utility model proposes Figure 2 A magnified structural diagram of A;

[0020] Figure 4 This is a schematic diagram of the installation structure of the support tube proposed in this utility model;

[0021] Figure 5 This is a schematic diagram of the installation structure of the jet head proposed in this utility model;

[0022] Figure 6 This is a schematic diagram of the installation structure of the insertion rod proposed in this utility model.

[0023] In the diagram: 1. Feed pipe body; 2. Cooling sleeve; 3. Air inlet pipe; 4. Fixed pipe; 5. Air delivery pipe; 6. Jet nozzle; 7. Water tank; 8. Water pump; 9. Water outlet pipe; 10. Water delivery pipe; 11. Support pipe; 12. Connecting pipe; 13. Water mist spray head; 14. Connecting ring; 15. Slide rod; 16. Buffer ring; 17. Guide ring; 18. Retaining ring; 19. Buffer spring; 20. Support rod; 21. Support block; 22. Insert rod; 23. Screen plate. Detailed Implementation

[0024] To better understand the above-mentioned objectives, features and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] like Figures 1-6 The device shown is a cooling device for the feed pipe of a needle coke rotary kiln. It includes a feed pipe body 1, a cooling sleeve 2 connected to the middle of the outer wall of the feed pipe body 1, a gas conveying component connected to one side of the lower end of the cooling sleeve 2, the gas conveying component can convey gas to the inside of the feed pipe body 1, a cooling component connected to the lower part of one side of the cooling sleeve 2, and a separation component connected to both the upper and lower parts of the inner wall of the feed pipe body 1.

[0026] The upper end of the feed pipe body 1 is connected to the feed port of the rotary kiln. The needle-shaped coke material inside the rotary kiln is transported to the cooling equipment through the feed pipe body 1. The temperature of the needle-shaped coke material discharged from the rotary kiln is too high. The air conveying component can evenly deliver cold air to the inside of the feed pipe body 1 to cool the needle-shaped coke material inside the feed pipe body 1. At the same time, because the temperature of the needle-shaped coke material is too high, the temperature of the outer wall of the feed pipe body 1 is also too high. The cooling component sprays water mist onto the outer wall of the feed pipe body 1 to cool the outer wall of the feed pipe body 1 and prevent the feed pipe body 1 from being deformed or damaged due to thermal stress due to long-term high temperature. When the needle-shaped coke material falls inside the feed pipe body 1, the separation component can separate the needle-shaped coke material to prevent the needle-shaped coke material from sticking together.

[0027] The gas delivery assembly includes an air inlet pipe 3, the upper end of which extends through into the interior of the cooling sleeve 2. A fixed pipe 4 is connected to the upper end of the air inlet pipe 3. Each fixed pipe 4 is circumferentially connected to an air delivery pipe 5. A jet nozzle 6 is evenly connected to one side of each of the multiple air delivery pipes 5. One end of each of the multiple jet nozzles 6 extends through into the interior of the feed pipe body 1. One end of each of the multiple jet nozzles 6 is connected to a screen plate 23. An opening is provided in the feed pipe body 1 corresponding to each of the multiple jet nozzles 6. Each of the multiple jet nozzles 6 is located inside the multiple openings. Each of the multiple screen plates 23 is connected to one side of the inner wall of the multiple openings.

[0028] Cold air enters the fixed pipe 4 through the air inlet pipe 3, and is delivered to the inside of the feed pipe body 1 through multiple air delivery pipes 5 and multiple jet nozzles 6. This can cool the needle-shaped coke material conveyed inside the feed pipe body 1, and prevent the needle-shaped coke material fragments from entering the jet nozzle 6 through the screen plate 23.

[0029] The cooling assembly includes a water tank 7, a water pump 8 connected to the lower middle part of the inner wall of the water tank 7, a water outlet pipe 9 connected to one side of the inner wall of the water tank 7, one end of the water outlet pipe 9 passing through the water tank 7 and the cooling sleeve 2 and extending into the cooling sleeve 2, the output end of the water pump 8 connected to a water supply pipe 10, one end of the water supply pipe 10 passing through the water tank 7 and the cooling sleeve 2 and extending into the cooling sleeve 2, one end of the water supply pipe 10 connected to a support pipe 11, the lower end of the support pipe 11 being evenly circumferentially connected to connecting pipes 12, and multiple connecting pipes 12 being evenly connected to one side of a water mist spray head 13;

[0030] A water inlet pipe is connected to one side of the upper end of the water tank 7. Water enters the water tank 7 through the water inlet pipe. The water pump 8 works, and the water inside the water tank 7 is transported to multiple connecting pipes 12 through the water delivery pipe 10 and the support pipe 11. The water inside the multiple connecting pipes 12 is sprayed onto the outer wall of the feed pipe body 1 through the water mist spray head 13, which can cool the outer wall of the feed pipe body 1, so as to cool the needle coke inside the feed pipe body 1. The water falls into the cooling sleeve 2. An electric control valve is connected to the middle of the outer wall of the water outlet pipe 9. When the electric control valve at the water outlet pipe 9 is opened, the water inside the cooling sleeve 2 is transported to the water tank 7 through the water outlet pipe 9.

[0031] The separation assembly includes a connecting ring 14, with slide rods 15 evenly connected to the upper end of the connecting ring 14. Buffer rings 16 are sleeved on the outer walls of the slide rods 15. Guide rings 17 are connected to the upper end of the buffer rings 16 and slide on the outer walls of the slide rods 15. A retaining ring 18 is connected to the lower end of the buffer rings 16. One side of the outer wall of the retaining ring 18 is slidably connected to one side of the inner wall of the connecting ring 14. Buffer springs 19 are connected to the upper end of the connecting ring 14 at each of the slide rods 15. The buffer springs 19 are sleeved on the outer walls of the slide rods 15. The upper ends of the buffer springs 19 are connected to the lower ends of the guide rings 17. Support rods 20 are circumferentially connected to the inner walls of the guide rings 17. Support blocks 21 are connected to one end of each support rod 20. Insert rods 22 are evenly connected to the upper middle part of the support blocks 21 and the upper ends of the support rods 20. The insert rods 22 are arranged in an inverted V-shape.

[0032] When the needle-shaped coke material inside the rotary kiln falls into the feed pipe body 1, it falls onto the multiple insert rods 22. The insert rods 22 separate the needle-shaped coke material that is stuck together. The guide ring 17 guides the material. At the same time, when the needle-shaped coke material falls onto the multiple support rods 20, the buffer spring 19 buffers the buffer ring 16, which causes the multiple support rods 20 and the multiple insert rods 22 to be buffered. This not only better separates the stuck needle-shaped coke material, but also prevents the needle-shaped coke material from remaining on the support rods 20. The separated needle-shaped coke material also has a better cooling effect. The insert rods 22 and the support rods 20 are made of heat-resistant steel bars.

[0033] Working principle: When using the device, the needle-shaped coke material processed by the rotary kiln is conveyed to the cooling equipment through the feed pipe body 1. When the needle-shaped coke material falls, it hits multiple insert rods 22, which can separate the needle-shaped coke material that is stuck together. At the same time, the buffer spring 19 buffers the buffer ring 16, which causes multiple support rods 20 and multiple insert rods 22 to be buffered, which not only better separates the stuck needle-shaped coke material, but also allows the separated needle-shaped coke material to fall downwards. Cold air enters the air inlet pipe 3 and the fixed pipe 4. Inside multiple gas pipes 5, cold air is cooled by multiple jet nozzles 6 on the needle coke material conveyed inside the feed pipe body 1. At the same time, the water pump 8 works, and water is conveyed through the water pipe 10, support pipe 11, and multiple connecting pipes 12 to the interior of multiple water mist spray nozzles 13. The water is evenly sprayed onto the outer wall of the feed pipe body 1 through the multiple water mist spray nozzles 13 to cool the outer wall of the feed pipe body 1. This can achieve the cooling treatment of the needle coke discharged inside the feed pipe body 1 and also extend the service life of the feed pipe body 1.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A cooling device for the feed pipe of a needle coke rotary kiln, comprising a feed pipe body (1), characterized in that, A cooling sleeve (2) is connected to the middle of the outer wall of the feed pipe body (1), and an air conveying assembly is connected to one side of the lower end of the cooling sleeve (2). The gas delivery assembly can deliver gas into the interior of the feed pipe body (1); A cooling assembly is connected to the lower part of one side of the cooling sleeve (2); Separation components are connected to both the upper and lower parts of the inner wall of the feed pipe body (1).

2. The cooling device for the feed pipe of a needle coke rotary kiln according to claim 1, characterized in that, The gas delivery assembly includes an air inlet pipe (3), the upper end of which extends through into the interior of the cooling sleeve (2). The upper end of the air inlet pipe (3) is connected to a fixed pipe (4), and the upper end of the fixed pipe (4) is circumferentially connected to a gas delivery pipe (5). A jet nozzle (6) is evenly connected to one side of one of the multiple gas delivery pipes (5), and one end of each of the multiple jet nozzles (6) extends through into the interior of the feed pipe body (1).

3. The cooling device for the feed pipe of a needle coke rotary kiln according to claim 2, characterized in that, One end of each of the multiple jet nozzles (6) is connected to a sieve plate (23). The feed pipe body (1) has an opening at each of the multiple jet nozzles (6). The multiple jet nozzles (6) are located inside the multiple openings. The multiple sieve plates (23) are connected to one side of the inner wall of the multiple openings.

4. The cooling device for the feed pipe of a needle coke rotary kiln according to claim 1, characterized in that, The cooling assembly includes a water tank (7), a water pump (8) is connected to the middle of the lower end of the inner wall of the water tank (7), a water outlet pipe (9) is connected to one side of the inner wall of the water tank (7), one end of the water outlet pipe (9) passes through the water tank (7) and the cooling sleeve (2) in sequence and extends into the interior of the cooling sleeve (2), the output end of the water pump (8) is connected to a water supply pipe (10), one end of the water supply pipe (10) passes through the water tank (7) and the cooling sleeve (2) in sequence and extends into the interior of the cooling sleeve (2), one end of the water supply pipe (10) is connected to a support pipe (11), the lower end of the support pipe (11) is evenly connected to a connecting pipe (12), and a water mist spray head (13) is evenly connected to one side of a plurality of connecting pipes (12).

5. A cooling device for the feed pipe of a needle coke rotary kiln according to claim 1, characterized in that, The separation assembly includes a connecting ring (14), with slide rods (15) evenly connected to the upper end of the connecting ring (14). Buffer rings (16) are sleeved on the outer walls of the slide rods (15). A guide ring (17) is connected to the upper end of the buffer ring (16). The guide ring (17) slides on the outer walls of the slide rods (15). A retaining ring (18) is connected to the lower end of the buffer ring (16). One side of the outer wall of the retaining ring (18) is slidably connected to one side of the inner wall of the connecting ring (14). Buffer springs (19) are connected to the upper end of the connecting ring (14) at the locations of the slide rods (15). The buffer springs (19) are sleeved on the outer walls of the slide rods (15). The upper ends of the buffer springs (19) are connected to the lower ends of the guide rings (17). Support rods (20) are circumferentially connected to the inner walls of the guide rings (17). One end of each support rod (20) is connected to a support block (21).

6. A cooling device for the feed pipe of a needle coke rotary kiln according to claim 5, characterized in that, The upper middle part of the support block (21) is evenly connected to the upper ends of multiple support rods (20) with insert rods (22), and the insert rods (22) are arranged in an inverted V-shape.

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