Needle coke crushing and grading device

Abstract

The utility model belongs to the technical field of needle coke, and particularly discloses a needle coke crushing and grading device which comprises a crushing box, a feeding box is fixedly connected to the crushing box, a collecting hopper is fixedly connected to the interior of the feeding box, a sliding plate is fixedly connected to the interior of the crushing box, a plurality of discharging holes are formed in the exterior of the crushing box, and the collecting hopper is fixedly connected to the interior of the sliding plate. The inner side of the crushing box is rotationally connected with a pair of filter plates arranged up and down, the filter plates correspond to the discharging holes in position, holes in the filter plates located on the lower side are smaller than holes in the filter plates located on the upper side, and the distance between the two sets of crushing cavities can be adjusted through driving of an electric push rod. The distance between the crushing rollers is correspondingly adjusted, and when the crushing rollers are far away from or close to each other, the gaps for the needle coke to pass through correspondingly generate synchronous change, so that after the motor drives the crushing rollers to rotate, the needle coke with the corresponding size can be crushed, and the size of the crushed needle coke can be adjusted through the design.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the needle coke technical field, concretely relates to a needle coke crushing grading device. BACKGROUND

[0002] Needle coke is a high-quality variety of carbon materials that is vigorously developed, its appearance is silver gray, has metallic luster's porous solid, its structure has obvious flow texture, big and few and slightly oval hole, particle has larger length-width ratio, has like fibrous or needle-like texture direction, feels lubricious when touching, is the raw material of producing super high power electrode, special carbon material, carbon fiber and its composite material etc. High-end carbon products. According to the different production raw materials, needle coke can be divided into oil-based needle coke and coal-based needle coke. The needle coke produced by taking petroleum residue oil as raw material is oil-based needle coke, and the needle coke produced by taking coal tar pitch and its distillate as raw material is coal-based needle coke.

[0003] Through the search, the Chinese patent CN218222601U proposes a needle coke crushing grading device, which includes a crushing bin, the first sieve plate, the second sieve plate and the third sieve plate are inserted with sweeping blocks, and different sizes of needle coke are processed by grading and screening through the first sieve plate, the second sieve plate and the third sieve plate, and the first sieve plate, the second sieve plate and the third sieve plate are distributed in a three-step ladder shape, so that the materials can be distributed and taken without interfering with each other when taking materials, and the first sieve plate, the second sieve plate and the third sieve plate can be automatically opened and closed by the second electric push rod, which is more convenient to use.

[0004] But the above-mentioned prior art is found in actual use that the device cannot adjust the particle size after crushing according to actual demand in the process of crushing needle coke, and single particle size crushing may cause part of the particles to be excessively crushed, while another part of the particles does not reach the ideal crushing degree, at the same time, due to the single particle size after crushing, additional screening or secondary crushing steps may be needed to obtain the required particle size range, thereby increasing the complexity and time cost of the production process. UTILITY MODEL CONTENTS

[0005] The utility model aims at solving the shortcomings in the prior art and proposes a needle coke crushing grading device.

[0006] In order to achieve the above object, the utility model provides a needle coke crushing and grading device, including the crushing box, the crushing box is fixedly connected with the feed box, the feed box is fixedly connected with the collecting hopper in, the crushing box is fixedly connected with the sliding plate in, a plurality of discharge holes are seted up to the crushing box outward, and the sliding plate corresponds with one of the discharge holes, a pair of upper and lower filter plates are rotatably connected to the crushing box inboard, the position of filter plate and discharge hole corresponds, and the aperture of the filter plate on the lower side is smaller than the aperture on the upper side, the side of the crushing box is fixed with the supporting plate, the supporting plate top is fixedly connected with the elastic sheet, the elastic sheet outer wall is fixedly connected with the weakening zone, the crushing assembly is arranged in the crushing box,

[0007] The crushing assembly is used for crushing needle coke.

[0008] In the above technical scheme, further, the crushing assembly includes a crushing cavity symmetrically sliding in the crushing box, the crushing box is symmetrically provided with an electric push rod outside, and the driving end of the electric push rod is connected with the crushing cavity, the crushing cavity is fixedly provided with a motor, and the crushing cavity is rotatably connected with a crushing roller.

[0009] In the above technical scheme, further, the crushing cavity is provided with a sliding hole on one side, and the crushing box is symmetrically fixed with a blocking plate inside, and the blocking plate slides in the sliding hole.

[0010] In the above technical scheme, further, the crushing cavity is provided with a through groove inside, and the shape of the through groove is matched with the blocking plate.

[0011] In the above technical scheme, further, the crushing box is provided with a spiral conveying mechanism on one side, the spiral conveying mechanism is provided with an entering hole at the lower section, the spiral conveying mechanism is fixedly connected with a conveying plate with a port towards the feed box, the crushing box is rotatably connected with a second discharge plate symmetrically arranged on one side, and the crushing box is fixedly connected with a first discharge plate arranged obliquely on one side.

[0012] In the above technical scheme, further, the collecting hopper is fixedly connected with a communication pipe at the bottom, and the communication pipe extends and inserts into the crushing cavity.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] The distance between the two sets of crushing cavities can be adjusted by the driving of the electric push rod, and the distance between the crushing rollers is adjusted accordingly, and when the crushing rollers are far away or close to each other, the gap for the needle coke to pass through changes synchronously, so that the motor-driven crushing roller can crush the needle coke of corresponding size, and the above design can adjust the size of the crushed needle coke, and the crushed needle coke falls on the filter plate or the sliding plate, and the filter plates have increasing pore sizes to intercept needle coke of a specified size, and after the needle coke falls on the filter plate, the impact force of the needle coke on the filter plate is transmitted to the elastic sheet at one end of the filter plate, and the elastic sheet starts to shrink along the weakening belt, and the filter plate without support starts to tilt downward to make the needle coke slide off, and after a while, the elastic sheet returns to its original shape, and the filter plate is pushed again and turns over, and through the above design, when multiple needle cokes fall at the same time, the filter plate will continuously reciprocate and turn over, thereby promoting the needle coke to slide out of the crushing box, and the vibration generated can prevent the needle coke from being stuck in the pores of the filter plate to block the pores.

[0015] By setting the through groove, the needle coke can enter between the crushing roller and the inner wall of the crushing cavity for crushing, thereby improving the crushing efficiency, and during the approaching and moving away of the crushing cavities, the inner wall of the crushing cavity also approaches or moves away from the blocking plate, thereby reducing the size of the needle coke entering between the inner wall of the crushing cavity and the side of the crushing roller, and through this design, when the distance between the crushing rollers decreases, the blocking plate can replace the inner wall of the crushing cavity and the crushing roller to crush the needle coke, so that the size of the crushed needle coke is more in line with the standard. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 A structure diagram of the needle coke crushing and grading device is provided.

[0017] Figure 2 An internal structure diagram of the needle coke crushing and grading device is provided.

[0018] Figure 3 A structure diagram of the crushing cavity of the present application is provided.

[0019] Figure 4 A structure diagram of the crushing cavity of the present application is provided. Figure 2 An enlarged schematic view of part A of the present application.

[0020] In the figure: 1, broken box; 2, screw conveying mechanism; 3, feed box; 4, conveying plate; 5, discharge hole; 6, first discharge plate; 7, second discharge plate; 8, filter plate; 9, slide plate; 10, collecting hopper; 11, communication pipe; 12, electric push rod; 13, crushing cavity; 14, motor; 15, crushing roller; 16, sliding hole; 17, blocking plate; 18, support plate; 19, elastic sheet; 20, weakened belt; 21, through groove. DETAILED DESCRIPTION

[0021] In order to enable the above-mentioned purposes, features and advantages of the present application to be more clearly understood, the present application will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0022] As Figures 1-4The device for breaking and grading needle coke shown in the application comprises a breaking box 1, a feeding box 3 fixedly connected to the breaking box 1, a collecting hopper 10 fixedly connected in the feeding box 3, a sliding plate 9 fixedly connected in the breaking box 1, a plurality of discharge holes 5 provided on the outside of the breaking box 1, the sliding plate 9 corresponding to one of the discharge holes 5, a pair of upper and lower filter plates 8 rotatably connected to the inside of the breaking box 1, the filter plates 8 corresponding to the positions of the discharge holes 5, the filter plate 8 on the lower side having smaller apertures than the filter plate 8 on the upper side, a support plate 18 fixedly connected to one side of the breaking box 1 in a symmetrical manner, an elastic sheet 19 fixedly connected to the top of the support plate 18, weakening bands 20 symmetrically provided on the outer wall of the elastic sheet 19, a breaking assembly provided in the breaking box 1, the breaking assembly using the needle coke, the breaking assembly comprising a pulverizing cavity 13 symmetrically sliding in the breaking box 1, an electric push rod 12 symmetrically installed on the outside of the breaking box 1, the driving end of the electric push rod 12 connected to the pulverizing cavity 13, a motor 14 fixedly installed on the pulverizing cavity 13, and a crushing roller 15 rotatably connected in the pulverizing cavity 13, the distance between the two groups of pulverizing cavities 13 being adjusted by the driving of the electric push rod 12, the distance between the crushing rollers 15 being correspondingly adjusted, the gap for the needle coke passing through being correspondingly changed synchronously when the crushing rollers 15 move away from or close to each other, the needle coke of corresponding size being pulverized when the crushing rollers 15 are driven to rotate by the motor 14, the size of the needle coke after pulverization being adjusted by the above design, the pulverized needle coke falling on the filter plates 8 or the sliding plate 9, the filter plates 8 having incremental aperture sizes between them to intercept the needle coke of specified size, the impact force of the needle coke falling on the filter plates 8 being transmitted to the elastic sheet 19 through the filter plates 8 after the one end of the filter plates 8 is supported by the elastic sheet 19 provided as an elastic structure, the elastic sheet 19 starting to shrink and deform along the weakening bands 20, the filter plates 8 losing support and starting to tilt downward to make the needle coke slide off, the shape of the elastic sheet 19 rebounding after a while, the filter plates 8 being re-topped and flipped over, the filter plates 8 being continuously flipped back and forth when a plurality of needle cokes fall down at the same time, the needle coke being promoted to slide out of the breaking box 1, the vibration generated preventing the needle coke from being stuck in the apertures of the filter plates 8 to block the apertures.

[0023] The pulverizing cavity 13 is provided with a sliding hole 16 on one side, the inside of the crushing box 1 is symmetrically fixed with a blocking plate 17, and the blocking plate 17 slides in the sliding hole 16, and the inside of the pulverizing cavity 13 is provided with a through groove 21, and the shape of the through groove 21 is matched with the blocking plate 17. The through groove 21 can be provided for the needle coke to enter between the crushing roller 15 and the inner wall of the pulverizing cavity 13 from one side of the crushing roller 15 for crushing, thereby improving the crushing efficiency. During the process of approaching or moving away from each other of the pulverizing cavity 13, the inner wall thereof also approaches or moves away from the blocking plate 17, so as to reduce the size of the needle coke entering between the inner wall of the pulverizing cavity 13 and one side of the crushing roller 15. Through this design, while the distance between the crushing rollers 15 becomes smaller, the blocking plate 17 can replace the inner wall of the pulverizing cavity 13 and the crushing roller 15 to contact for crushing the needle coke, so that the size of the crushed needle coke is more in line with the standard.

[0024] The crushing box 1 is provided with a spiral conveying mechanism 2, the lower section of the spiral conveying mechanism 2 is provided with an entering hole, the spiral conveying mechanism 2 is fixedly connected with a conveying plate 4 with a port facing the feeding box 3, the crushing box 1 is rotatably connected with symmetrically arranged second discharge plates 7 on one side, and the crushing box 1 is fixedly connected with an inclined first discharge plate 6 on one side. The second discharge plate 7 can be rotated to adjust the angle of orientation, so that the needle coke sliding out of the crushing box 1 passes through the orientation of the second discharge plate 7 to slide into the collecting box for collection or into the spiral conveying mechanism 2, and then is re-conveyed to the crushing box 1 by the conveying plate 4 for further crushing, so that the size of the crushed needle coke is more in line with the standard.

[0025] The collecting hopper 10 is fixedly connected with a communication pipe 11, and the communication pipe 11 extends and is inserted into the pulverizing cavity 13. The communication pipe 11 is inserted into the pulverizing cavity 13, so that the needle coke can enter the inside of the pulverizing cavity 13 no matter how the pulverizing cavity 13 separates or approaches.

[0026] Working principle:

[0027] The distance between the two groups of crushing cavities 13 can be adjusted by the driving of the electric push rod 12, and the distance between the crushing rollers 15 is adjusted accordingly, and when the crushing rollers 15 are far away or close to each other, the gap for the needle coke to pass through changes synchronously, so that the motor 14 drives the crushing roller 15 to rotate, and the corresponding size of the needle coke can be crushed, and through the above design, the size of the crushed needle coke can be adjusted, and the crushed needle coke falls on the filter plate 8 or the sliding plate 9, and the filter plate 8 has an increasing pore size to intercept the needle coke of a specified size, and after the needle coke falls on the filter plate 8, the impact force of the needle coke falling on the filter plate 8 is transmitted to the elastic sheet 19 through the filter plate 8, and the elastic sheet 19 starts to shrink along the weakening belt 20, and the filter plate 8 loses support and starts to tilt downward to make the needle coke slide off, and after a while, the elastic sheet 19 returns to its original shape and pushes the filter plate 8 again to make it flip, and through the above design, when multiple needle cokes fall at the same time, the filter plate 8 will continuously flip back and forth, thereby promoting the needle coke to slide out of the crushing box 1, and the vibration generated can prevent the needle coke from being stuck in the pores of the filter plate 8 to block the pores.

[0028] By setting the through groove 21, the needle coke can enter between the crushing roller 15 and the inner wall of the crushing cavity 13 to be crushed, thereby improving the crushing efficiency, and during the process of the crushing cavities 13 moving close to or away from each other, the inner wall of the crushing cavity 13 also moves close to or away from the blocking plate 17, thereby reducing the size of the needle coke entering between the inner wall of the crushing cavity 13 and the side of the crushing roller 15, and through this design, when the distance between the crushing rollers 15 becomes smaller, the blocking plate 17 can replace the inner wall of the crushing cavity 13 and the crushing roller 15 to crush the needle coke, so that the size of the crushed needle coke is more in line with the standard.

[0029] The basic principle, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited to the above embodiments, and the above embodiments and descriptions in the specification are only the principles of the present application, and various changes and improvements can be made without departing from the spirit and scope of the present application, and these changes and improvements all fall within the scope of the claimed present application.

Claims

1. A needle coke crushing and classifying device comprising a crushing tank (1), characterized in that, The crushing box (1) is fixedly connected with a feeding box (3), the feeding box (3) is fixedly connected with a collecting hopper (10) in the crushing box (1), the crushing box (1) is fixedly connected with a sliding plate (9), a plurality of discharge holes (5) are formed in the crushing box (1), and the sliding plate (9) corresponds to one of the discharge holes (5), a pair of upper and lower filter plates (8) are rotatably connected to the inner side of the crushing box (1), the filter plates (8) correspond to the positions of the discharge holes (5), and the aperture of the lower filter plate (8) is smaller than that of the upper filter plate (8), the crushing box (1) is fixedly connected with a support plate (18) on one side, the support plate (18) is fixedly connected with an elastic sheet (19) on the top, the elastic sheet (19) is symmetrically provided with a weakened belt (20) on the outer wall, and the crushing box (1) is provided with a crushing assembly. The crushing assembly uses a needle coke.

2. A needle coke crushing and classifying device according to claim 1, characterized in that, The crushing assembly comprises a crushing cavity (13) symmetrically sliding in the crushing box (1), the crushing box (1) is symmetrically provided with an electric push rod (12) on the outer side, and the driving end of the electric push rod (12) is connected with the crushing cavity (13), the crushing cavity (13) is fixedly provided with a motor (14), and the crushing cavity (13) is rotatably connected with a crushing roller (15).

3. A needle coke crushing and classifying device according to claim 2, characterized in that, The crushing cavity (13) is provided with a sliding hole (16) on one side, and the crushing box (1) is symmetrically fixedly provided with a blocking plate (17) on the inner side, and the blocking plate (17) slides in the sliding hole (16).

4. A needle coke crushing and classifying device according to claim 2, wherein The crushing cavity (13) is provided with a through groove (21) on the inner side, and the shape of the through groove (21) is matched with that of the blocking plate (17).

5. A needle coke crushing and classifying device according to claim 1, wherein The crushing box (1) is provided with a spiral conveying mechanism (2) on one side, the lower section of the spiral conveying mechanism (2) is provided with an entering hole, the spiral conveying mechanism (2) is fixedly connected with a conveying plate (4) with a port facing the feeding box (3), the crushing box (1) is rotatably connected with a second discharge plate (7) symmetrically arranged on one side, and the crushing box (1) is fixedly connected with a first discharge plate (6) arranged obliquely on one side.

6. A needle coke crushing and classifying device according to claim 2, wherein The collecting hopper (10) is fixedly connected with a communication pipe (11) at the bottom, and the communication pipe (11) extends into the crushing cavity (13).

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