A calcined petroleum coke cooling device

Abstract

The application discloses a calcined petroleum coke cooling device and belongs to the technical field of petroleum coke cooling devices. The device comprises an inner wall and an outer wall. The inner side of the inner wall is a heat exchange zone. The outer wall is arranged on the outer side of the inner wall. A closed space is arranged between the outer wall and the inner wall. A plurality of jet plates are arranged in the closed space. The jet plates are arranged in a vertical direction. There are gaps between adjacent jet plates. Each jet plate is parallel to the inner wall and the outer wall. A plurality of air injection holes are arranged on each jet plate. The top end and the bottom end of each jet plate are connected to the outer wall and the inner wall through partition pieces. The jet plates are parallel to the outer wall and the inner wall. The closed space is preliminarily divided. After high-pressure cold air enters, the high-pressure cold air can flow from the outer wall side of the jet plate to the inner wall side of the jet plate. The jet plates are provided with jet holes. The flow rate of the high-pressure cold air can be increased. The high-pressure cold air can be impacted on the inner wall for heat exchange. The heat exchange effect is good.

Description

Technical Field

[0001] This invention belongs to the technical field of petroleum coke cooling devices, specifically relating to a cooling device for calcined petroleum coke. Background Technology

[0002] Petroleum coke is a very important industrial product with a wide range of applications. For example, it can be used to produce carbon products such as graphite electrodes and anode arcs, supplying steelmaking, non-ferrous metals, and aluminum smelting; to produce silicon carbide products such as various grinding wheels, abrasive sheets, and sandpaper; to produce commercial calcium carbide for the production of synthetic fibers and acetylene; and it can also be used as fuel. The processing of petroleum coke generally includes a calcination process, where it is calcined at high temperatures in a calcining tank to obtain the calcined petroleum coke product.

[0003] Calcinated petroleum coke requires cooling, and water is typically chosen as the cooling medium. For example, patent application number 201410260283.3 discloses a cooling device for calcined anthracite or petroleum coke, which uses cooling water to cool the calcined petroleum coke through heat exchange tubes. This method uses a large amount of water, and the pipelines have a short lifespan and are prone to aging, leading to leaks that can affect the product. Summary of the Invention

[0004] To address the aforementioned shortcomings, this invention provides a post-calcination petroleum coke cooling device that uses high-pressure gas for cooling, extending the lifespan of the pipeline and eliminating the risk of affecting the product.

[0005] This invention protects a cooling device for calcined petroleum coke, which has a cylindrical structure. The hollow part of the cylindrical structure is a heat exchange zone, through which the calcined petroleum coke to be cooled is cooled.

[0006] The device includes an inner wall and an outer wall. The inner side of the inner wall is the heat exchange zone, and the outer wall is fitted over the outer side of the inner wall. A closed space is provided between the outer wall and the inner wall.

[0007] The enclosed space is provided with several jet plates, which are arranged vertically with gaps between adjacent jet plates. Each jet plate is parallel to the inner wall and the outer wall, and each jet plate is provided with several jet holes. The top and bottom of each jet plate are connected to the outer wall and the inner wall respectively through partitions.

[0008] The device also includes an air intake mechanism and an exhaust mechanism, both of which are connected to the enclosed space. High-pressure cold air can enter from the air intake mechanism, repeatedly impact the outer wall and the inner wall for heat exchange through the jet hole, and then be discharged from the exhaust mechanism.

[0009] Further, the partition member comprises a first partition and a second partition, the top end of each of the jet flow plates is connected to the outer wall through the first partition, and the bottom end of each of the jet flow plates is connected to the inner wall through the second partition.

[0010] Further, the included angle between the first partition and the jet flow plate is 45°-135°, and the included angle between the second partition and the jet flow plate is 90°-135°.

[0011] Further, the air inlet mechanism is close to the bottom end of the outer wall, the air inlet mechanism comprises a lower opening and an air inlet pipe sleeve, the air inlet pipe sleeve is sleeved outside the outer wall, the lower opening is arranged on the outer wall covered by the air inlet pipe sleeve, and an air inlet is arranged on the air inlet pipe sleeve.

[0012] Further, the air outlet mechanism is close to the top end of the outer wall, the air outlet mechanism comprises an upper opening and an air outlet pipe sleeve, the air outlet pipe sleeve is sleeved outside the outer wall, the upper opening is arranged on the outer wall covered by the air outlet pipe sleeve, and an air outlet is arranged on the air outlet pipe sleeve.

[0013] Further, the top end of the cylindrical structure is an inlet, and the bottom end of the cylindrical structure is an outlet, and the area of the inlet is greater than the area of the outlet.

[0014] Beneficial effects:

[0015] The jet flow plate parallel to the outer wall and the inner wall is arranged, the sealed space is preliminarily partitioned, the high-pressure cold gas enters the jet flow plate from the outer wall side to the inner wall side, the jet flow plate is provided with a jet flow hole, the flow rate of the high-pressure cold gas is increased, heat exchange is performed on the inner wall, and the heat exchange effect is good. The partition member is arranged, the high-pressure cold gas is blocked from moving in the vertical direction, and can only repeatedly impact between the outer wall and the inner wall, moves in the vertical direction in a zigzag manner, in the process of high-speed movement, heat exchange is performed between the gas and the inner wall and the outer wall, the inner wall is cooled, the heat exchange area is indirectly cooled, and the purpose of cooling the calcined petroleum coke is achieved. The gas cooling mode is arranged, the requirement for the pipeline can be reduced, the service life of the jet flow plate is long, the jet flow plate is not prone to aging, and there is no risk of water leakage affecting the product. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0017] Among them:

[0018] Figure 1 This is a 1 / 4 sectional view of a post-calcined petroleum coke cooling device in one embodiment of the present invention;

[0019] Figure 2 for Figure 1 A magnified structural diagram of part A in the middle;

[0020] Figure 3 for Figure 1 A magnified structural diagram of part B in the middle section;

[0021] Figure 4 A top view of a post-calcined petroleum coke cooling device in another embodiment of the present invention;

[0022] Figure 5 for Figure 4 The left view.

[0023] In the diagram, 1 is the exhaust pipe sleeve; 11 is the exhaust port; 2 is the outer wall; 21 is the lower opening; 22 is the upper opening; 3 is the intake pipe sleeve; 31 is the intake port; 4 is the second partition; 5 is the inner wall; 6 is the jet plate; 61 is the jet hole; 7 is the first partition; and 8 is the heat exchange zone. Detailed Implementation

[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0025] refer to Figures 1-4 This invention protects a cooling device for calcined petroleum coke, which has a cylindrical structure, or a hollow cylindrical or square tube shape without a top or bottom. The hollow part of the cylindrical structure is the heat exchange zone 8. The calcined petroleum coke to be cooled enters from the top of the cylindrical structure, is cooled in the heat exchange zone 8, and then is discharged from the bottom of the cylindrical structure.

[0026] The cooling device for calcined petroleum coke includes an inner wall 5 and an outer wall 2. The inner side of the inner wall 5 is a heat exchange zone 8, and the outer wall 2 is fitted on the outer side of the inner wall 5. A closed space is provided between the outer wall 2 and the inner wall 5.

[0027] Several jet plates 6 are provided in the enclosed space. The jet plates 6 are arranged vertically with gaps between adjacent jet plates 6. Each jet plate 6 is parallel to the inner wall 5 and the outer wall 2. Each jet plate 6 is provided with several jet holes 61. The top and bottom of each jet plate 6 are connected to the outer wall 2 and the inner wall 5 respectively through partitions.

[0028] The calcined petroleum coke cooling device further comprises an air inlet mechanism and an air outlet mechanism, both of which are communicated with the closed space, and the high-pressure cold air can enter from the air inlet mechanism, repeatedly impact the outer wall 2 and the inner wall 5 for heat exchange through the jet holes 61, and then be discharged from the air outlet mechanism. The high-pressure cold air can be high-pressure cold air or high-pressure inert gas.

[0029] The present application preliminarily divides the sealed space by arranging the jet plate 6 parallel to the outer wall 2 and the inner wall 5, so that the high-pressure cold air can flow from the outer wall 2 side of the jet plate 6 to the inner wall 5 side of the jet plate 6 after entering. The jet plate 6 has jet holes 61, which can increase the flow rate of the high-pressure cold air and make it impact the inner wall 5 for heat exchange, achieving good heat exchange effect. By arranging the partition member, the high-pressure cold air is blocked from moving directly in the vertical direction and can only repeatedly impact between the outer wall 2 and the inner wall 5, moving in a zigzag in the vertical direction. In this high-speed movement process, the heat exchange between the gas and the inner wall 5 and the outer wall 2 is realized, the inner wall 5 is cooled, the heat exchange zone 8 is indirectly cooled, and the purpose of cooling the calcined petroleum coke is achieved. By arranging the gas cooling mode, the requirement for the pipeline can be reduced compared with water cooling, the service life of the jet plate 6 is long, it is not easy to age, and there is no risk of water leakage affecting the product.

[0030] Reference Figure 2 In one specific embodiment, the partition member includes a first partition 7 and a second partition 4, and the top end of each jet plate 6 is connected to the outer wall 2 through the first partition 7, and the bottom end of each jet plate 6 is connected to the inner wall 5 through the second partition 4.

[0031] As shown in the figure, the high-pressure cold air enters the space on the left side of the jet plate 6 from the bottom end, passes through the jet plate 6 to enter the space on the right side of the jet plate 6, and then impacts the inner wall 5 at high speed, and then enters the space on the left side of the jet plate 6 above through the gap above, and then repeats the process. By arranging the partition member in this way, the high-pressure cold air with the lowest temperature can impact the bottom of the inner wall 5 at high speed, achieving good cooling effect.

[0032] Reference Figures 1-3 In one specific embodiment, the included angle between the first partition 7 and the jet plate 6 is 45°-135°, and the included angle between the second partition 4 and the jet plate 6 is 90°-135°.

[0033] Preferably, the included angle between the remaining first partitions 7 and the jet plate 6 is 135°, except for the first partition 7 on the uppermost side. The included angle between the remaining second partitions 4 and the jet plate 6 is also 135°, except for the second partition 4 on the lowermost side.

[0034] This angle is arranged to make the high-pressure cold air rise smoothly, increase the amount of high-pressure cold air entering, and avoid excessive turbulence affecting the entry of high-pressure cold air.

[0035] ReferenceFigure 2 In one specific embodiment, the air inlet mechanism is close to the bottom end of the outer wall 2; the air inlet mechanism comprises a lower opening 21 and an air inlet sleeve 3, the air inlet sleeve 3 is sleeved on the outer side of the outer wall 2, the air inlet sleeve 3 covers the outer wall 2 on which the lower opening 21 is formed, the lower opening 21 is a through hole circumferentially formed on the outer wall 2, in order to increase the air inlet amount, the air inlet sleeve 3 is provided with an air inlet 31.

[0036] Reference Figure 3 In one specific embodiment, the air outlet mechanism is close to the top end of the outer wall 2;

[0037] The air outlet mechanism comprises an upper opening 22 and an air outlet sleeve 1, the air outlet sleeve 1 is sleeved on the outer side of the outer wall 2, the air outlet sleeve 1 covers the outer wall 2 on which the upper opening 22 is formed, the upper opening 22 is also a through hole circumferentially formed on the outer wall 2, in order to increase the air outlet amount, the air outlet sleeve 1 is provided with an air outlet 11.

[0038] Reference Figure 1 Or 4, in one specific embodiment, the top end of the cylindrical structure is an inlet, the bottom end of the cylindrical structure is an outlet, the area of the inlet is larger than that of the outlet. The cylindrical structure is a trapezoidal body.

[0039] The calcined petroleum coke has a high descending speed at the inlet, and the high-pressure cold gas at this position also has a high temperature, so that the calcined petroleum coke can be preliminarily cooled; with the decrease of the cross-sectional area of the heat exchange zone 8, the descending speed of the calcined petroleum coke is also slowed down, so that the calcined petroleum coke can be fully contacted with the inner wall 5, and at the same time, the high-pressure cold gas below has a lower and lower temperature, so that the calcined petroleum coke can be well cooled.

[0040] The above only discloses the preferred embodiments of the present application, and of course cannot limit the scope of the rights of the present application, therefore, the equivalent changes made according to the claims of the present application still belong to the scope covered by the present application.

Claims

1. A calcined petroleum coke cooling device, which is a cylindrical structure, the hollow part of the cylindrical structure is a heat exchange zone (8), the calcined petroleum coke to be cooled passes through the heat exchange zone (8) for cooling, characterized in that, comprising an inner wall (5) and an outer wall (2), the inner side of the inner wall (5) is the heat exchange zone (8), the outer wall (2) is sleeved on the outer side of the inner wall (5), and a closed space is arranged between the outer wall (2) and the inner wall (5); a plurality of jet plates (6) are arranged in the closed space, the plurality of jet plates (6) are arranged in a vertical direction, there is a gap between adjacent jet plates (6), each jet plate (6) is parallel to the inner wall (5) and the outer wall (2), a plurality of air injection holes (61) are arranged on each jet plate (6), and the top end and the bottom end of each jet plate (6) are connected with the outer wall (2) and the inner wall (5) through a partition piece respectively; the device further comprises an air inlet mechanism and an air outlet mechanism, the air inlet mechanism and the air outlet mechanism are communicated with the closed space, high-pressure cold air can enter from the air inlet mechanism, repeatedly impact the outer wall (2) and the inner wall (5) through the air injection holes (61) for heat exchange, and then be discharged from the air outlet mechanism. The partition piece comprises a first partition (7) and a second partition (4), the top end of each jet plate (6) is connected with the outer wall (2) through the first partition (7), and the bottom end of each jet plate (6) is connected with the inner wall (5) through the second partition (4). The included angle between the first partition (7) and the jet plate (6) is 45°-135°; The included angle between the second partition (4) and the jet plate (6) is 90°-135°.

2. The calcined petroleum coke cooling device according to claim 1, characterized in that, The air inlet mechanism is close to the bottom end of the outer wall (2); 3. The calcined petroleum coke cooling device according to claim 2, characterized in that, The air inlet mechanism comprises a lower opening (21) and an air inlet pipe sleeve (3), the air inlet pipe sleeve (3) is sleeved on the outer side of the outer wall (2), the lower opening (21) is arranged on the outer wall (2) covered by the air inlet pipe sleeve (3), and an air inlet (31) is arranged on the air inlet pipe sleeve (3). The air outlet mechanism is close to the top end of the outer wall (2); 4. The calcined petroleum coke cooling device of claim 1, wherein, The air outlet mechanism comprises an upper opening (22) and an air outlet pipe sleeve (1), the air outlet pipe sleeve (1) is sleeved on the outer side of the outer wall (2), the upper opening (22) is arranged on the outer wall (2) covered by the air outlet pipe sleeve (1), and an air outlet (11) is arranged on the air outlet pipe sleeve (1). The top end of the cylindrical structure is an inlet, the bottom end of the cylindrical structure is an outlet, and the area of the inlet is greater than that of the outlet.

5. The calcined petroleum coke cooling device of claim 1, wherein, ​ ​ 6. The calcined petroleum coke cooling device of claim 1, wherein, ​

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