High-safety needle coke production device

Abstract

The utility model relates to a high-safety needle coke production device which comprises a tower body, the top of the tower body is fixedly connected with a coke cutting opening, a defoaming agent injection pipe, an exhaust pipe and a pressure relief pipe, the pressure relief pipe is fixedly connected with a pressure relief outlet, a pipeline is fixedly connected between the pressure relief outlet and the exhaust pipe, and the bottom of the tower body is provided with a coke outlet. According to the high-safety needle coke production device, the pressure relief pipe is used for relieving pressure when the pressure in the tower body is increased, oil gas subjected to pressure relief is discharged into the exhaust pipe through the pipeline, and the exhaust capacity is increased for pressure relief when the pressure of the tower body is increased, so that the pressure safety of the coke tower is guaranteed; meanwhile, coke powder particles are prevented from entering the next procedure along with oil gas due to pressure increase.

Description

TECHNICAL FIELD

[0001] The utility model relates to a needle coke production device, especially a high safety needle coke production device. BACKGROUND

[0002] The needle coke is a high-quality variety in carbon materials, which is a porous solid with silver-gray and metallic luster, is a raw material for producing high-end carbon products such as super-high power electrodes, special carbon materials, carbon fibers and composite materials, and can be divided into oil-based needle coke and coal-based needle coke according to different raw materials.

[0003] In the domestic needle coke production device, the coking tower is in the process of manufacturing needle coke, with the continuous entry of raw materials, the amount of coke increases, the height of coke layer increases, and the foam layer also rises, the foam oil in the foam layer is carried by the oil gas, the foam oil carries the coke powder to the inside of the oil gas pipeline to produce cracking and condensation reaction, coking, and after a long time, too much coke can cause the inner diameter of the connecting pipe wall to be reduced, affecting the passage of oil gas, when the coking at the root of the oil gas pipe is serious, it can cause the pressure at the top of the coking tower to rise, the reaction depth in the tower to deepen, and more gas to be produced, so that the pressure at the top of the coking tower is further increased, and the oil speed is accelerated, forming a vicious cycle. SUMMARY

[0004] The utility model discloses a high safety needle coke production device, which is used to solve the problem that when the coking at the root of the oil gas pipe is serious, the pressure at the top of the coking tower rises, the reaction depth in the tower deepens, and more gas is produced, so that the pressure at the top of the coking tower is further increased, forming a vicious cycle.

[0005] In order to solve the above problems, the utility model provides a high safety needle coke production device, which comprises a tower body, a coke cutting port, a defoaming agent injection pipe, an exhaust pipe and a pressure relief pipe are fixedly connected to the top of the tower body, a pressure relief outlet is fixedly connected to the pressure relief pipe, a pipeline is fixedly connected between the pressure relief outlet and the exhaust pipe, and a coke outlet is arranged at the bottom of the tower body.

[0006] The high safety needle coke production device provided by the utility model also has the following technical features:

[0007] Further, the top of the pressure relief pipe is provided with a closed pipe cover, an upper fixed plate and a lower fixed plate are fixedly connected to the upper and lower sides of the pressure relief outlet respectively, a overflow hole is arranged at the center of the lower fixed plate, and an elastic opening and closing cover is arranged between the overflow hole and the upper fixed plate.

[0008] Further, the cover is connected with a slide rod, the upper fixed plate is provided with a sliding hole for the slide rod to slide, the slide rod is fixedly connected with a fixed pressing plate above the upper fixed plate, a spring is sleeved on the slide rod and abuts against the fixed pressing plate.

[0009] Further, the slide rod extends from the pipe cover, the other end of the spring is connected with a movable pressing plate, the movable pressing plate is slidably connected with the slide rod, the pipe cover is threadedly connected with an adjusting screw pipe, the adjusting screw pipe is sleeved on the slide rod, and the bottom end of the adjusting screw pipe abuts against the movable pressing plate.

[0010] Further, the bottom of the pressure relief pipe is provided with a ring cutter connected with the cover.

[0011] Further, the bottom of the cover is fixedly connected with a core rod, the core rod extends from the overflow hole to the bottom of the pressure relief pipe, the bottom of the core rod is fixedly connected with a connecting rod, and the other end of the connecting rod is fixedly connected with the ring cutter.

[0012] The high-safety needle coke production device has the following beneficial effects: the high-safety needle coke production device disclosed in the application utilizes the pressure relief pipe to relieve pressure when the pressure in the tower body increases, and the relieved oil gas is discharged into the exhaust pipe through the pipeline, so that the exhaust capacity is increased to relieve pressure when the pressure in the tower body increases, the pressure safety of the coking tower is ensured, and the coke powder particles are prevented from entering the next process with the oil gas due to the increase of pressure. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a high-safety needle coke production device axial measurement schematic view of the utility model embodiment;

[0014] Figure 2 It is a high-safety needle coke production device right view section schematic view of the utility model embodiment;

[0015] Figure 3 It is a high-safety needle coke production device of the utility model embodiment Figure 2 It is a high-safety needle coke production device A node enlarged view;

[0016] Figure 4 It is a high-safety needle coke production device of the utility model embodiment Figure 2 It is a high-safety needle coke production device B node enlarged view.

[0017] (1-tower body, 2-coke cutting port, 3-defoaming agent injection pipe, 4-exhaust pipe, 5-pressure relief pipe, 6-pressure relief outlet, 7-pipeline, 8-coke outlet, 9-pipe cover, 10-upper fixed plate, 11-lower fixed plate, 12-overflow hole, 13-cover, 14-slide rod, 15-fixed pressing plate, 16-spring, 17-movable pressing plate, 18-adjusting screw pipe, 19-ring cutter, 20-core rod, 21-connecting rod) DETAILED DESCRIPTION

[0018] Hereinafter, the utility model will be described in detail with reference to the drawings and in conjunction with the embodiments. It should be noted that the embodiments in the utility model and the features in the embodiments can be combined with each other without conflict.

[0019] As Figures 1 to 4 shown in the embodiment of the high-safety needle coke production device of the utility model, the high-safety needle coke production device comprises a tower body 1, the top of the tower body 1 is fixedly connected with a coke cutting port 2, a defoaming agent injection pipe 3, an exhaust pipe 4 and a pressure relief pipe 5, the pressure relief pipe 5 is fixedly connected with a pressure relief outlet 6, the pressure relief outlet 6 and the exhaust pipe 4 are fixedly connected with a pipeline 7, and the bottom of the tower body 1 is provided with a coke outlet 8.

[0020] Specifically, in the process of manufacturing needle coke, as the raw materials continuously enter, the amount of coke increases, the height of the coke layer increases, and the foam layer also rises, the foam oil in the foam layer is carried by the oil gas, the foam oil carries the coke powder into the exhaust pipe 4 to produce cracking and condensation reactions, and coking is performed, too much coke is easy to cause the inner diameter of the pipe wall at the connection between the exhaust pipe 4 and the tower body 1 to be reduced, which affects the passage of the oil gas, when the coking at the root of the exhaust pipe 4 is serious, the pressure at the top of the coking tower is increased, the pressure is relieved through the pressure relief pipe 5 after the pressure is increased, the oil gas passes through the pressure relief outlet 6 of the pressure relief pipe 5 and enters the exhaust pipe 4 through the pipeline 7, the exhaust capacity is increased to reduce the pressure through the pressure relief pipe 5 when the pressure in the tower body 1 is increased, the safety of the pressure is ensured, and too much coke powder is prevented from entering the exhaust pipe 4.

[0021] In an embodiment of the present application, preferably, the top of the pressure relief pipe 5 is provided with a closed pipe cover 9, the pressure relief pipe 5 is fixedly connected with an upper fixed plate 10 and a lower fixed plate 11 on the upper and lower sides of the pressure relief outlet 6 respectively, the center of the lower fixed plate 11 is provided with an overflow hole 12, the overflow hole 12 and the upper fixed plate 10 are provided with an elastic opening and closing cover 13, which is used for lifting the cover 13 to release the oil gas into the pressure relief outlet 6 when the pressure in the tower body 1 is increased, and the cover 13 closes the overflow hole 12 to block the oil gas from passing through the overflow hole 12 when the pressure in the tower body 1 is reduced.

[0022] In an embodiment of the present application, preferably, the cover 13 is connected with a sliding rod 14, the upper fixed plate 10 is provided with a sliding hole (not marked in the figure) for the sliding rod 14 to slide, the sliding rod 14 is fixedly connected with a fixed pressing plate 15 above the upper fixed plate 10, a spring 16 is sleeved on the sliding rod 14, the spring 16 abuts against the fixed pressing plate 15, which is used for pushing the cover 13 to close the overflow hole 12 when the pressure is reduced, and the cover 13 can only be lifted when the pressure in the tower body 1 overcomes the elastic force of the spring 16.

[0023] In one embodiment of the present application, preferably, the slide rod 14 extends from the pipe cover 13, the other end of the spring 16 is connected with the movable pressing plate 17 which is in sliding connection with the slide rod 14, the adjusting screw tube 18 is threadedly connected on the pipe cover 9, the adjusting screw tube 18 is sleeved on the slide rod 14, the bottom end of the adjusting screw tube 18 abuts against the movable pressing plate 17, and the adjusting screw tube 18 is used for compressing the spring 16 to adjust the elastic force of the spring 16, the pressure for opening the cover 13 is adjusted by adjusting the elastic force of the spring 16, and thus the constant pressure or the maximum pressure in the tower body 1 is adjusted.

[0024] In one embodiment of the present application, preferably, the bottom of the pressure relief pipe 5 is provided with the annular cutter 19 which is linked with the cover 13, the annular cutter 19 is in contact with the inner wall of the pressure relief pipe 5, and the annular cutter 19 is used for moving up and down with the cover 13 to avoid coking at the connection of the pressure relief pipe 5 to affect the pressure relief effect when the oil gas is relieved.

[0025] In one embodiment of the present application, preferably, the bottom of the cover 13 is fixedly connected with the core rod 20 which extends from the overflow hole 12 to the bottom of the pressure relief pipe 5, the bottom of the core rod 20 is fixedly connected with the connecting rod 21, the other end of the connecting rod 21 is fixedly connected with the annular cutter 19, and the connecting rod 21 is used for connecting the cover 13 and the annular cutter 19 to link the cover 13 and the annular cutter 19.

[0026] In summary, in the high-safety needle coke production device in the above embodiments of the present application, specifically, when the coke amount in the tower body 1 increases, the coking at the connection of the exhaust pipe 4 and the tower body 1 is serious to cause the pressure in the tower body 1 to increase, the cover 13 is opened by the pressure when the pressure in the tower body 1 increases to overcome the elastic force of the spring 16, the oil gas bypasses the connection of the exhaust pipe 4 and the tower body 1 through the pipeline 7 to enter the exhaust pipe 4 through the overflow hole 12 and the pressure relief outlet 6, the annular cutter 19 moves up with the cover 13 when the cover 13 moves up, the pressure in the tower body 1 is reduced after the pressure relief through the pressure relief pipe 5, the overflow hole 12 is closed by the cover 13 under the elastic force of the spring 16, and the condensed coke powder at the connection of the pressure relief pipe 5 and the tower body 1 is scraped off by the annular cutter 19 when the annular cutter 19 descends with the cover 13; the oil gas in the tower body 1 is overflowed from the pressure relief pipe 5 to reduce the pressure in the tower body 1 by the pressure driving component in the pressure relief pipe 5, the pressure safety of the tower body 1 is ensured, and the vicious cycle in the environment of the increased pressure is avoided.

[0027] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, rather than limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: the technical solutions recorded in the foregoing embodiments can still be modified, or some technical features can be replaced equivalently; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A high-safety needle coke production apparatus, characterized in that, The application relates to a coke cutting tower, which comprises a tower body, a coke cutting opening, a defoaming agent injection pipe, an exhaust pipe and a pressure relief pipe fixedly connected to the top of the tower body, a pressure relief outlet fixedly connected to the pressure relief pipe, a pipeline fixedly connected between the pressure relief outlet and the exhaust pipe, and a coke outlet arranged at the bottom of the tower body.

2. The high-safety needle coke production apparatus according to claim 1, characterized by: The top of the pressure relief pipe is provided with a closed pipe cover, and the pressure relief pipe is fixedly connected with an upper fixed plate and a lower fixed plate on the upper and lower sides of the pressure relief outlet respectively, the center of the lower fixed plate is provided with an overflow hole, and an elastic opening and closing cover is arranged between the overflow hole and the upper fixed plate.

3. The high-safety needle coke production apparatus according to claim 2, characterized by: A sliding rod is connected to the cover, the upper fixed plate is provided with a sliding hole for the sliding rod, the sliding rod is fixedly connected with a fixed pressing plate above the upper fixed plate, a spring is sleeved on the sliding rod, and the spring abuts against the fixed pressing plate.

4. The high-safety needle coke production apparatus according to claim 3, characterized by: The sliding rod extends from the pipe cover, the other end of the spring is connected with a movable pressing plate, the movable pressing plate is slidably connected with the sliding rod, an adjusting screw pipe is threadedly connected to the pipe cover, the adjusting screw pipe is sleeved on the sliding rod, and the bottom end of the adjusting screw pipe abuts against the movable pressing plate.

5. The high-safety needle coke production apparatus according to claim 2, characterized by: The bottom of the pressure relief pipe is provided with a ring cutter linked with the cover, and the ring cutter is in contact with the inner wall of the pressure relief pipe.

6. The high-safety needle coke production apparatus according to claim 5, characterized by: The bottom of the cover is fixedly connected with a core rod, the core rod extends from the overflow hole to the bottom of the pressure relief pipe, the bottom of the core rod is fixedly connected with a connecting rod, and the other end of the connecting rod is fixedly connected with the ring cutter.

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