Calcined petroleum coke mixing and batching device

Abstract

The utility model provides a kind of calcined petroleum coke mixing and batching device, comprising: bottom plate, horizontal mixing tank and composite stirring assembly, wherein, two support frames are respectively installed in the two ends of horizontal mixing tank, and its bottom end is respectively installed with multiple support legs, horizontal mixing tank is set in the top end of bottom plate by two support frames and multiple support legs, composite stirring assembly includes two rotating discs, first stirring shaft and second stirring shaft, wherein, two rotating discs are respectively rotatably connected in the two ends of horizontal mixing tank, first stirring shaft and second stirring shaft are set between two rotating discs, driving assembly is arranged between composite stirring assembly and bottom plate, and the driving part of driving assembly is connected with the two rotating discs of composite stirring assembly. The calcined petroleum coke mixing and batching device of the utility model embodiment can eliminate mixing dead angle, and strengthen the macroscopic convection and microscopic shear efficiency of petroleum coke, efficiently realize the high-quality mixing of petroleum coke and asphalt.

Description

Technical Field

[0001] This utility model relates to the field of petroleum coke blending technology, and in particular to a blending and batching device for calcined petroleum coke. Background Technology

[0002] Calcined petroleum coke blending refers to the process of using calcined petroleum coke as aggregate, mixed with binders and additives such as coal tar pitch in a specific ratio, to prepare a homogeneous mixture for producing carbon products such as aluminum anodes and graphite electrodes. This mixing process requires the assistance of a petroleum coke blending and batching device.

[0003] Currently, most of these devices use traditional horizontal mixers, which rely on a pair of counter-rotating impellers to achieve mixing through shearing and convection.

[0004] However, in actual use, this type of equipment has obvious shortcomings: on the one hand, because the movement trajectory of the stirring paddle is fixed, a stable flow field is easily formed in the mixing tank, resulting in mixing dead zones near the tank wall and shaft end, affecting the overall uniformity; on the other hand, although this type of structure is good at micro-shearing, its macro-convection capacity is weak, resulting in low mixing efficiency, which makes it difficult to meet the stringent uniformity requirements of high-performance carbon products. Utility Model Content

[0005] This utility model aims to at least partially solve one of the technical problems in the above-mentioned technologies.

[0006] Therefore, one objective of this utility model is to propose a calcined petroleum coke mixing and batching device, which uses a composite stirring component to make the stirring shaft rotate on its own axis while also revolving around the center, thereby eliminating mixing dead zones and enhancing the macroscopic convection and microscopic shearing efficiency of petroleum coke, thus achieving high-quality mixing of petroleum coke and asphalt.

[0007] To achieve the above objectives, the first aspect of this utility model proposes a mixing and batching device for calcined petroleum coke, comprising: a base plate, a horizontal mixing tank, and a composite stirring assembly. The horizontal mixing tank has two support frames installed at each end, and multiple support legs installed at its bottom. The horizontal mixing tank is positioned on the top of the base plate via the two support frames and the multiple support legs. The composite stirring assembly includes two rotating discs, a first stirring shaft, and a second stirring shaft. The two rotating discs are rotatably connected to both ends of the horizontal mixing tank, separating the horizontal mixing tank from the support frames. The first stirring shaft and the second stirring shaft are positioned between the two rotating discs and are symmetrical about the rotating discs. A first gear is installed at each end of the first stirring shaft, and a second gear is installed at each end of the second stirring shaft. A third gear is fixedly installed on the inner side of each of the two support frames, meshing with the first and second gears respectively. A spiral stirring frame is installed on the outer side of the first and second stirring shafts. A driving assembly is provided between the composite stirring assembly and the base plate, and the driving part of the driving assembly is connected to the two rotating discs of the composite stirring assembly.

[0008] In addition, the calcined petroleum coke mixing and batching device proposed above according to this utility model may also have the following additional technical features: Specifically, the drive assembly includes a motor and a rotating shaft, wherein the motor is fixedly mounted on the top of the base plate, the rotating shaft is rotatably connected to the bottom of the two support frames, a first transmission mechanism is provided between the motor and the rotating shaft to connect them, and a second transmission mechanism is provided between the rotating shaft and the two rotating disks to connect them.

[0009] Specifically, a discharge assembly is installed at the bottom of the horizontal mixing tank on the side away from the motor, and several electric heating rods are installed on the inner wall of the horizontal mixing tank.

[0010] Compared with the prior art, this utility model has the following beneficial effects: In view of the inherent defects of traditional mixers, this utility model innovatively introduces a planetary compound motion structure. The stirring shaft revolves around the center of the tank while rotating on its own axis, so that the stirring trajectory fully covers the space inside the tank, eliminating the mixing dead angles between the wall and the shaft end. While maintaining local high-efficiency shearing, it greatly improves the macroscopic mixing efficiency and significantly improves the uniformity and consistency of the ingredients, providing a key process guarantee for the production of high-performance carbon products.

[0011] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0012] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which: Figure 1 This is a schematic diagram of the structure of a calcined petroleum coke mixing and batching device according to an embodiment of the present invention. Figure 1 .

[0013] Figure 2 This is a schematic diagram of the structure of a calcined petroleum coke mixing and batching device according to an embodiment of the present invention. Figure 2 .

[0014] Figure 3 This is a cross-sectional view of the composite stirring assembly of a calcined petroleum coke mixing and batching device according to an embodiment of the present invention. Figure 1 .

[0015] Figure 4 This is a cross-sectional view of the composite stirring assembly of a calcined petroleum coke mixing and batching device according to an embodiment of the present invention. Figure 2 .

[0016] Figure 5 This is a schematic diagram of the drive assembly of a calcined petroleum coke mixing and batching device according to an embodiment of the present invention.

[0017] Reference numerals in the attached drawings: 1. Base plate; 2. Horizontal mixing tank; 3. Support frame; 4. Support leg; 5. Composite mixing assembly; 51. Rotary disc; 52. First mixing shaft; 53. First gear; 54. Second mixing shaft; 55. Second gear; 56. Third gear; 6. Drive assembly; 61. Motor; 62. First sprocket; 63. Rotating shaft; 64. Second sprocket; 65. Third sprocket; 66. Fourth sprocket; 7. Discharge assembly; 71. Enclosure door; 72. Shielding plate; 73. Electric push rod. Detailed Implementation

[0018] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0019] The following describes an embodiment of the calcined petroleum coke mixing and batching device with reference to the accompanying drawings.

[0020] like Figures 1-5 As shown, the calcined petroleum coke mixing and batching device of this utility model embodiment includes: a bottom plate 1, a horizontal mixing tank 2, and a composite stirring assembly 5, wherein, Two support frames 3 are installed at each end of the horizontal mixing tank 2, and four support legs 4 are installed at the bottom of each end. The horizontal mixing tank 2 is fixedly installed on the top of the base plate 1 by the two support frames 3 and the four support legs 4. Several electric heating rods are installed on the inner wall of the horizontal mixing tank 2. A discharge assembly 7 is installed at the bottom of the horizontal mixing tank 2 on the side away from the motor 61.

[0021] It should be noted that the discharge assembly 7 includes a closed door 71 rotatably connected to the bottom of the horizontal mixing tank 2, shielding plates 72 respectively fixedly connected to both sides of the discharge port at the bottom of the horizontal mixing tank 2, and two electric push rods 73 rotatably connected between the closed door 71 and the bottom. By controlling the extension and retraction of the electric push rods 73, the closed door 71 can be rotated at the bottom of the horizontal mixing tank 2 to open the discharge port at the bottom of the horizontal mixing tank 2.

[0022] The composite stirring assembly 5 includes two rotating disks 51, a first stirring shaft 52, and a second stirring shaft 54.

[0023] Two rotating disks 51 are rotatably connected to both ends of the horizontal mixing tank 2, and the rotating disks 51 separate the horizontal mixing tank 2 from the support frame 3.

[0024] It should be noted that a sealing ring with enhanced rotary seal is provided at the rotary connection between the rotary disc 51 and the horizontal mixing tank 2 to prevent leakage from the rotary connection between the rotary disc 51 and the horizontal mixing tank 2 during petroleum coke mixing.

[0025] The first stirring shaft 52 and the second stirring shaft 54 ​​are arranged between the two rotating disks 51, and the first stirring shaft 52 and the second stirring shaft 54 ​​are symmetrical about the rotating disks 51.

[0026] It should be noted that the first stirring shaft 52 and the second stirring shaft 54 ​​are rotatably connected to the two rotating disks 51 respectively, and the rotating connection points of the two rotating shafts 63 and the rotating disks 51 are also equipped with sealing rings to enhance the rotational seal, so as to prevent leakage from the rotating connection points of the two rotating shafts 63 and the rotating disks 51 during the mixing of petroleum coke.

[0027] The first stirring shaft 52 is equipped with a first gear 53 at both ends, the second stirring shaft 54 ​​is equipped with a second gear 55 at both ends, and the inner sides of the two support frames 3 are fixedly equipped with a third gear 56, which meshes with the first gear 53 and the second gear 55 respectively.

[0028] It should be noted that the first gear 53 and the second gear 55 have the same specifications. When the first gear 53 and the second gear 55 roll and rotate outside the third gear 56, the first stirring shaft 52 and the second stirring shaft 54 ​​can rotate at the same speed.

[0029] Spiral stirring frames are installed on the outer sides of the first stirring shaft 52 and the second stirring shaft 54.

[0030] It should be noted that the spiral mixing racks on the outer side of the first mixing shaft 52 and the spiral mixing racks on the outer side of the second mixing shaft 54 ​​have opposite spiral directions and the same initial spiral angle, which allows the two mixing racks to intersect each other. The opposite spiral directions can prevent petroleum coke and asphalt from accumulating at one end of the mixing tank. The intersect mixing racks can increase the local mixing shear force, fully disperse the petroleum coke, and allow the asphalt to fully coat the petroleum coke.

[0031] A drive assembly 6 is provided between the composite mixing assembly 5 and the base plate 1, and the drive part of the drive assembly 6 is connected to the two rotating disks 51 of the composite mixing assembly 5.

[0032] Specifically, when workers are producing high-performance carbon products, they need to use a calcined petroleum coke mixing and batching device to thoroughly mix petroleum coke and asphalt.

[0033] First, petroleum coke and asphalt are added into the horizontal mixing tank 2 in a certain proportion. Then, the electric heating rods in the horizontal mixing tank 2 are turned on to heat the asphalt and petroleum coke, which facilitates their subsequent mixing.

[0034] Then, the drive assembly 6 is activated. The drive assembly 6 drives the rotating disk 51 connected to it to rotate at both ends of the horizontal mixing tank 2. The rotation of the rotating disk 51 drives the first stirring shaft 52 and the second stirring shaft 54 ​​to revolve around the center of the rotating disk 51 inside the horizontal mixing tank 2. While the first stirring shaft 52 and the second stirring shaft 54 ​​are revolving, the first gear 53 and the second gear 55 roll outside the third gear 56. The first gear 53 and the second gear 55 are driven by the third gear 56, which drives the first stirring shaft 52 and the second stirring shaft 54 ​​to rotate on their own axis inside the rotating disk 51, forming a complex mixing trajectory, fully mixing petroleum coke and asphalt, and eliminating mixing dead zones.

[0035] Finally, after the petroleum coke and asphalt are mixed, the discharge assembly 7 is opened to discharge the mixed petroleum coke and asphalt from the horizontal mixing tank 2.

[0036] In one embodiment of this utility model, such as Figure 2 , Figure 3 and Figure 5 As shown, the drive assembly 6 includes a motor 61 and a rotating shaft 63.

[0037] The motor 61 is fixedly installed on the top of the base plate 1, and the rotating shaft 63 is rotatably connected to the bottom of the two support frames 3. A first transmission mechanism is provided between the motor 61 and the rotating shaft 63 to connect them, and a second transmission mechanism is provided between the rotating shaft 63 and the two rotating disks 51 to connect them.

[0038] It should be noted that motor 61 is a dual-output shaft motor 61, with drive shafts on both sides.

[0039] It should be noted that the first transmission mechanism includes two first sprockets 62 and two second sprockets 64. The two first sprockets 62 are respectively fixedly installed on the outer side of the drive shafts on both sides of the motor 61, and the second sprockets 64 are respectively fixedly installed on the outer side of the rotating shaft 63. Chains are sleeved on the outer side of the corresponding first sprockets 62 and second sprockets 64.

[0040] It should be noted that the second transmission mechanism includes two third sprockets 65 and two fourth sprockets 66. The two third sprockets 65 are fixedly installed at both ends of the rotating shaft 63, and the fourth sprockets 66 are fixedly installed on the opposite sides of the two rotating disks 51. Chains are sleeved on the outer sides of the corresponding third sprockets 65 and fourth sprockets 66.

[0041] Specifically, when the motor 61 is started, the drive shafts on both sides of the motor 61 can drive the second sprocket 64 and the rotating shaft 63 to rotate through the first sprocket 62 and the chain. The rotating shaft 63 drives the fourth sprocket 66 and the rotating disk 51 to rotate through the third sprocket 65 and the chain. The rotation of the rotating disk 51 means that the compound stirring assembly 5 is started.

[0042] In summary, the calcined petroleum coke mixing and batching device of this invention achieves planetary motion by combining the revolution of the stirring shaft around the center of the tank and the rotation around its own axis through the composite stirring component. This effectively eliminates dead zones in the mixing inside the tank, significantly improves the mixing uniformity, and enhances the macroscopic convection capacity while maintaining the microscopic shear strength. It ensures that the asphalt fully coats the petroleum coke particles and is suitable for the uniform mixing requirements of high-performance carbon product production.

[0043] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0044] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0045] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A mixing and batching device for calcined petroleum coke, characterized in that, include: The base plate, horizontal mixing tank, and composite mixing assembly, among which, The horizontal mixing tank is equipped with two support frames at each end and multiple support legs at its bottom. The horizontal mixing tank is mounted on the top of the base plate via the two support frames and the multiple support legs. The composite stirring assembly includes two rotating disks, a first stirring shaft, and a second stirring shaft, wherein... The two rotating disks are respectively rotatably connected to both ends of the horizontal mixing tank, and the rotating disks separate the horizontal mixing tank from the support frame; The first stirring shaft and the second stirring shaft are disposed between the two rotating disks, and the first stirring shaft and the second stirring shaft are symmetrical about the rotating disks; A first gear is installed at both ends of the first stirring shaft, a second gear is installed at both ends of the second stirring shaft, and a third gear is fixedly installed on the inner side of each of the two support frames, and the third gear meshes with the first gear and the second gear respectively. A spiral stirring frame is installed on the outer side of the first stirring shaft and the second stirring shaft; A drive assembly is provided between the composite stirring assembly and the base plate, and the drive part of the drive assembly is connected to the two rotating disks of the composite stirring assembly.

2. The calcined petroleum coke mixing and batching device according to claim 1, characterized in that, The drive assembly includes a motor and a rotating shaft, wherein, The motor is fixedly mounted on the top of the base plate, and the rotating shaft is rotatably connected to the bottom of the two support frames; A first transmission mechanism is provided between the motor and the rotating shaft to connect them; A second transmission mechanism is provided between the rotating shaft and the two rotating disks to connect them.

3. The calcined petroleum coke mixing and batching device according to claim 2, characterized in that, A discharge assembly is installed at the bottom of the horizontal mixing tank on the side away from the motor, and several electric heating rods are installed on the inner wall of the horizontal mixing tank.

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