Vibrating screening structure for precisely regulating particle size distribution of calcined coke

Abstract

The utility model discloses a vibrating screening structure of precision regulation and control calcined coke granularity distribution relates to vibrating screening structure technical field, the utility model discloses a screening box still includes: feeding mechanism, the feeding mechanism sets up on screening box, the utility model discloses a feeding mechanism, specifically is in the process that material passes through hopper and enters screening box, motor no.

Description

Technical Field

[0001] This utility model belongs to the field of vibrating screen structure technology, and in particular relates to a vibrating screen structure for precisely controlling the particle size distribution of calcined coke. Background Technology

[0002] Calcined coke is an important raw material widely used in metallurgy, chemical industry and other industries. Its particle size distribution has a key impact on the quality of subsequent products and production processes. Different production processes and application scenarios have strict and diverse requirements for the particle size of calcined coke. Therefore, it is extremely important to accurately control the particle size distribution of calcined coke. In actual production, vibrating screening devices are often used to screen and classify the particle size of calcined coke.

[0003] However, existing screening devices often suffer from a lack of flow diversion structure in the hopper, causing material to accumulate when it falls onto the screening plate. This not only results in uneven material distribution on the screening plate and excessively thick material in some areas, severely affecting screening efficiency and preventing a large amount of qualified particle size from passing through the screen in time, but also causes excessive local stress on the screen, accelerating screen wear, reducing screen life, and increasing production costs. Therefore, there is an urgent need to improve and optimize the vibrating screening structure. Utility Model Content

[0004] The purpose of this invention is to provide a vibrating screening structure for precise control of the particle size distribution of calcined coke. By setting up a feeding mechanism, specifically, during the process of material entering the screening box through the hopper, a motor drives a turntable to rotate. Through a transmission plate, sector gears, and gear transmission, the rotating shaft drives a diversion baffle to perform a sector-shaped reciprocating motion within the hopper, diverting the material passing through the hopper. The three-way flow channel layout of the hopper, combined with the movement of the diversion baffle, allows the material to enter the two side channels evenly, preventing material from accumulating on the double screen plate. This ensures a reasonable distribution of material on the upper screening platform of the double screen plate, providing a good foundation for subsequent screening, improving screening efficiency, and reducing uneven screening caused by local overload. This solves the problem in existing screening devices where the lack of a diversion structure in the hopper often causes material to accumulate when falling onto the screening plate.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model relates to a vibrating sieve structure for precisely controlling the particle size distribution of calcined coke, including a sieve box, and further comprising: A feeding mechanism, mounted on a screening box, is used to feed the material to be screened into the screening box for screening. The feeding mechanism includes a hopper extending through the top of the screening box, and a protective box is fixedly connected to the left side of the hopper; and A screening mechanism is installed on a screening box. The screening mechanism is used to screen the material entering the screening box. The screening mechanism includes a double screen plate that is slidably connected to the inner wall of the screening box. A protective box is fixedly connected to the top of the screening box. Several turbulence columns are installed on the double screen plate. The hopper consists of a main channel for feeding and two side channels for discharging, forming a three-way flow channel layout. The double screen plate is adapted to the inner wall of the screening box, and both screening planes of the double screen plate are designed to be inclined with a gradually decreasing height from left to right.

[0006] Furthermore, the feeding mechanism also includes a diversion component, which is disposed inside the hopper and is used to divert the raw material to be screened within the hopper; and A drive component 1 is disposed on the hopper and is used to provide power for the diversion component to divert the material to be screened in the hopper. A transmission assembly is disposed on the hopper. The transmission assembly is used to transmit the power provided by the drive assembly to the diversion assembly, and to convert the rotational motion of the drive assembly into the fan-shaped reciprocating motion of the diversion assembly.

[0007] Furthermore, the screening mechanism also includes a second drive assembly, which is disposed on the screening box and is used to provide a vibratory screening force to the double screen plate; and A vibration assembly is installed on the screening box and is used in conjunction with the drive assembly two to enable the double screen plate to perform vibration screening operations. A feeding assembly is installed on the screening box and is used to classify and feed the material after screening by the double screen plate.

[0008] Furthermore, the diversion assembly includes a rotating shaft passing through the hopper, and a diversion baffle is fixedly connected to the outer wall of the rotating shaft. The rotating shaft is rotatably connected to the hopper via a bearing; the diversion baffle is fixedly connected to the rotating shaft by welding; the diversion baffle is adapted to the inner wall of the hopper, and the width of the diversion baffle is the same as the width of the inner wall of the hopper; the length of the rotating shaft is slightly less than half the length of the hopper.

[0009] Furthermore, the drive assembly includes a motor installed on the front side of the hopper, and the output shaft of the motor is fixedly connected to a turntable via a coupling; The motor is bolted to the mounting plate on the front side of the screening box, and the turntable is located to the left of the motor. The turntable is fixedly connected to the output shaft of the motor by welding.

[0010] Furthermore, the transmission assembly includes a gear fixedly connected to the left end of the rotating shaft, a sector gear rotatably connected to the left side of the screening box, and a transmission plate rotatably connected between the sector gear and the turntable; The gear is fixedly connected to the rotating shaft by welding, and the sector gear is rotatably connected to the pin located on the left side of the hopper by bearings; the two sides of the transmission plate are rotatably connected to the sector gear and the turntable by pins, and the side of the transmission plate closer to the turntable is located at the edge of the turntable.

[0011] Furthermore, the second drive assembly includes a second motor installed on the right side of the second protective box. The output shaft of the second motor is fixedly connected to a second rotating shaft via a coupling. The left end of the second rotating shaft passes through the second protective box and is rotatably connected to the second protective box. A cam is fixedly connected to the outer wall of the second rotating shaft. Among them, motor 2 is installed on the right side of protective box 2 by bolts, and shaft 2 is rotatably connected to protective box 2 by bearings; cam is fixedly connected to shaft 2 by welding, and after motor 2 is started, it drives cam to rotate through shaft 2.

[0012] Furthermore, the vibration assembly includes two connecting rods that pass through the top of the screening box. The bottom ends of the two connecting rods are fixedly connected to the double screen plate, and the top ends of the two connecting rods are fixedly connected to a top plate. Springs are sleeved on the outer walls of the two connecting rods. One end of each of the two springs is fixedly connected to the inner top wall of the screening box, and the other end is fixedly connected to the top of the double screen plate.

[0013] Furthermore, the feeding assembly includes two corrugated pipes fixedly connected to the double screen plate, and two feeding pipes 1 pass through the right side of the screening box. The two feeding pipes 1 located inside the screening box are respectively fixedly connected to the bottom end of the corresponding corrugated pipe. The bottom of the screening box is fixedly connected to feeding pipe 2. Both discharge pipes are fixedly connected to the right side of the screening box by welding, and the discharge ends of the two discharge pipes are staggered vertically.

[0014] This utility model has the following beneficial effects: 1. This utility model, through the setting of a feeding mechanism, specifically, during the process of material entering the screening box through the hopper, motor one drives the turntable to rotate, and through the transmission plate, sector gear and gear transmission, the rotating shaft one drives the diversion baffle to make a sector reciprocating motion in the hopper, diverting the material passing through the hopper. The three-way flow channel layout of the hopper, together with the movement of the diversion baffle, allows the material to enter the two side channels evenly, avoiding the material to accumulate on the double screen plate, thereby ensuring that the material is reasonably distributed on the upper screening platform of the double screen plate, thus providing a good foundation for subsequent screening, improving screening efficiency, and reducing the problem of uneven screening caused by local overload.

[0015] 2. This utility model, through the setting of a screening mechanism, specifically, the second motor drives the second rotating shaft and the cam to rotate. The cam periodically pushes the top plate, and with the help of the spring, the double screen plate vibrates through the connecting rod. The inclined design of the double screen plate, the screen holes of different diameters in the upper and lower layers, and the effect of the turbulence column allow the material to be fully screened. Materials of different particle sizes are discharged separately through the corrugated pipe, the first discharge pipe, and the second discharge pipe. The second protective box ensures the stable operation of the drive component, thereby achieving accurate grading of the particle size of the calcined coke, improving the stability of product quality, and meeting the needs of downstream production for materials of different particle sizes.

[0016] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a front cross-sectional view of the present invention. Figure 3 This is a schematic diagram of the structure of the hopper of this utility model; Figure 4 This is a cross-sectional structural diagram of the hopper of this utility model; Figure 5 This is a schematic diagram of the structure of the double sieve plate of this utility model; Figure 6 This utility model Figure 5 A magnified structural diagram of A in the diagram.

[0019] The attached diagram lists the components represented by each number as follows: 1. Screening box; 2. Feeding mechanism; 21. Hopper; 211. Protective box one; 22. Diverting assembly; 221. Rotating shaft one; 222. Diverting baffle; 23. Drive assembly one; 231. Motor one; 232. Turntable; 24. Transmission assembly; 241. Gear; 242. Sector gear; 243. Transmission plate; 3. Screening mechanism; 31. Double screen plate; 311. Baffle column; 312. Protective box two; 32. Drive assembly two; 321. Motor two; 322. Rotating shaft two; 323. Cam; 33. Vibration assembly; 331. Connecting rod; 332. Top plate; 333. Spring; 34. Discharge assembly; 341. Corrugated pipe; 342. Discharge pipe one; 343. Discharge pipe two. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-6 As shown, this utility model is a vibrating sieve structure for precisely controlling the particle size distribution of calcined coke, including a sieve box 1, and further comprising: Feeding mechanism 2 is installed on screening box 1. Feeding mechanism 2 is used to feed the material to be screened into screening box 1 for screening. Feeding mechanism 2 includes a hopper 21 that extends through the top of screening box 1. A protective box 211 is fixedly connected to the left side of hopper 21. Screening mechanism 3 is installed on screening box 1. Screening mechanism 3 is used to screen the material entering screening box 1. Screening mechanism 3 includes a double screen plate 31 slidably connected to the inner wall of screening box 1. A protective box 312 is fixedly connected to the top of screening box 1. Several baffle columns 311 are installed on the double screen plate 31. The diameter of the screen hole on the upper screening plane of the double screen plate 31 is larger than the diameter of the screen hole on the lower screening plane. Several baffle columns 311 are distributed on the two screening planes of the double screen plate 31. The hopper 21 consists of a main channel for feeding and two side channels for discharging, forming a three-way flow channel layout.

[0022] The feeding mechanism 2 also includes a diversion component 22, which is disposed inside the hopper 21 and is used to divert the raw material to be screened within the hopper 21; and Drive component 23 is mounted on hopper 21 and is used to provide power for diversion component 22 to divert the material to be screened in hopper 21. The transmission assembly 24 is mounted on the hopper 21. The transmission assembly 24 is used to transmit the power provided by the drive assembly 23 to the diversion assembly 22, and convert the rotational motion of the drive assembly 23 into the fan-shaped reciprocating motion of the diversion assembly 22.

[0023] The screening mechanism 3 also includes a second drive assembly 32, which is mounted on the screening box 1. The second drive assembly 32 is used to provide a vibratory screening force to the double screen plate 31; and Vibration component 33 is installed on screening box 1. Vibration component 33 is used to cooperate with drive component 2 32 to make the double screen plate 31 perform vibration screening operation. The feeding component 34 is installed on the screening box 1 and is used to classify and feed the material after screening by the double screen plate 31.

[0024] The diversion assembly 22 includes a rotating shaft 221 that passes through the hopper 21. A diversion baffle 222 is fixedly connected to the outer wall of the rotating shaft 221. When the rotating shaft 221 drives the diversion baffle 222 to perform a fan-shaped reciprocating motion around the axis of the rotating shaft 221, the diversion baffle 222 will divert the raw material entering the hopper 21, so that the raw material enters the two side channels of the hopper 21 for discharge. The rotating shaft 221 is rotatably connected to the hopper 21 through bearings. The diversion baffle 222 is fixedly connected to the rotating shaft 221 by welding.

[0025] The drive assembly 23 includes a motor 231 mounted on the front side of the hopper 21. The output shaft of the motor 231 is fixedly connected to a turntable 232 via a coupling. When the motor 231 starts, it drives the turntable 232 to rotate, providing the basic force for the operation of the feeding mechanism 2 as a whole. The motor 231 is mounted on the mounting plate on the front side of the screening box 1 by bolts, and the turntable 232 is located to the left of the motor 231.

[0026] The transmission assembly 24 includes a gear 241 fixedly connected to the left end of the rotating shaft 221, a sector gear 242 rotatably connected to the left side of the screening box 1, and a transmission plate 243 rotatably connected between the sector gear 242 and the turntable 232. The transmission assembly 24 is protected by a protective box 211, and a through slot is provided on the front side of the protective box 211 to provide sufficient space for the transmission plate 243 to move. The gear 241 is fixedly connected to the rotating shaft 221 by welding, and the sector gear 242 is rotatably connected to a pin located on the left side of the hopper 21 by bearing.

[0027] The second drive assembly 32 includes a second motor 321 installed on the right side of the second protective box 312. The output shaft of the second motor 321 is fixedly connected to a second rotating shaft 322 via a coupling. The left end of the second rotating shaft 322 passes through the second protective box 312 and is rotatably connected to the second protective box 312. A cam 323 is fixedly connected to the outer wall of the second rotating shaft 322. The second protective box 312 provides protection and support for the second rotating shaft 322 and the cam 323. Among them, motor 2 321 is installed on the right side of protective box 2 312 by bolts, and rotating shaft 2 322 is rotatably connected to protective box 2 312 by bearing.

[0028] The vibration assembly 33 includes two connecting rods 331 that pass through the top of the screening box 1. The bottom ends of the two connecting rods 331 are fixedly connected to the double screen plate 31, and the top ends of the two connecting rods 331 are fixedly connected to the top plate 332. The outer walls of the two connecting rods 331 are fitted with springs 333. When the cam 323 rotates, it will periodically contact the top plate 332 during the rotation. When the cam 323 contacts the top plate 332, it will push the top plate 332 and drive the connecting rods 331 to move upward. At this time, the connecting rods 331 drive the double screen plate 31 to move upward and cause the springs 333 to contract. When the cam 323 does not contact the top plate 332, the springs 333 return to their original position and stretch, thereby driving the double screen plate 31 to move downward, causing the double screen plate 31 to vibrate.

[0029] The feeding assembly 34 includes two corrugated pipes 341 fixedly connected to the double screen plate 31. Two feeding pipes 342 pass through the right side of the screening box 1. One end of each feeding pipe 342 inside the screening box 1 is fixedly connected to the bottom end of the corresponding corrugated pipe 341. A feeding pipe 343 is fixedly connected to the bottom of the screening box 1. When the material falls onto the double screen plate 31, the material with the smallest particle size that passes through the two screening planes on the double screen plate 31 is discharged through the feeding pipe 343 at the bottom of the screening box 1, while the material that does not pass through the two screening planes on the double screen plate 31 is discharged through the outlets of the two screening planes respectively.

[0030] A specific application of this embodiment is as follows: When using the device, the material to be screened is first put into the hopper 21. During this process, the motor 231 in the drive assembly 23 starts and drives the turntable 232 to rotate. The turntable 232 drives the sector gear 242 to reciprocate around the pin shaft that is rotatably connected to the left side of the hopper 21 through the transmission plate 243 in the transmission assembly 24. Since the sector gear 242 meshes with the gear 241, the gear 241 drives the rotating shaft 221 to reciprocate, thereby causing the diversion baffle 222 in the diversion assembly 22 to make a sector reciprocating motion in the hopper 21. During the movement, the diversion baffle 222 diverts the material in the hopper 21, so that the material enters the two side channels of the hopper 21 respectively, thereby entering the screening box 1 evenly and falling onto the upper screening plane of the double screen plate 31, avoiding the accumulation of material.

[0031] When the material to be screened falls through the hopper 21 onto the upper screening plane of the double screen plate 31 in the screening box 1, the second motor 321 is started. After the second motor 321 starts, it drives the second rotating shaft 322 and the cam 323 to rotate synchronously. During the rotation, the cam 323 will periodically contact the top plate 332. When the two are in contact, the cam 323 pushes the top plate 332 and drives the double screen plate 31 to move upward through the connecting rod 331. At this time, the spring 333 contracts accordingly. When the cam 323 rotates to the point where it is no longer in contact with the top plate 332, the spring 333 returns to its original position and stretches, driving the double screen plate 31 to move downward. This causes the double screen plate 31 to vibrate continuously. Since both screening planes of the double screen plate 31 are higher on the left and lower on the right... In an inclined state, with the screen aperture diameter of the upper screening plane being larger than that of the lower layer, the material moves from left to right along the screen surface under vibration. At the same time, the flow trajectory is disrupted by the obstruction of the turbulence column 311, increasing the contact with the screen aperture and the chance of passing through the screen. Among them, the material with a particle size larger than the upper screen aperture remains on the upper screening plane and is eventually discharged through the corresponding corrugated pipe 341 and the corresponding feed pipe 342. The material with a particle size between the upper and lower screen apertures passes through the upper screen aperture and falls to the lower screening plane, and is then discharged through the corresponding corrugated pipe 341 and the feed pipe 342. The material with a particle size smaller than the lower screen aperture passes directly through both screen plates and is discharged from the feed pipe 343 at the bottom of the screening box 1, thereby achieving precise control of the particle size distribution of the calcined coke.

[0032] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," 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.

[0033] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A vibrating sieve structure for precisely controlling the particle size distribution of calcined coke, comprising a sieve box (1), characterized in that, Also includes: A feeding mechanism (2) is provided on a screening box (1). The feeding mechanism (2) is used to feed the material to be screened into the screening box (1) for screening. The feeding mechanism (2) includes a hopper (21) that runs through the top of the screening box (1). A protective box (211) is fixedly connected to the left side of the hopper (21). Screening mechanism (3), the screening mechanism (3) is set on screening box (1), the screening mechanism (3) is used to screen the material entering the screening box (1), the screening mechanism (3) includes a double screen plate (31) slidably connected to the inner wall of the screening box (1), a protective box two (312) is fixedly connected to the top of the screening box (1), and a number of turbulence columns (311) are installed on the double screen plate (31); The hopper (21) consists of a main channel for feeding and two side channels for discharging, forming a herringbone three-way flow channel layout.

2. The vibrating sieve structure for precisely controlling the particle size distribution of calcined coke according to claim 1, characterized in that, The feeding mechanism (2) further includes a diversion component (22), which is disposed inside the hopper (21) and is used to divert the raw material to be screened in the hopper (21); and A drive assembly (23) is disposed on the hopper (21) and is used to provide power to the diversion assembly (22); The transmission assembly (24) is disposed on the hopper (21). The transmission assembly (24) is used to transmit the power provided by the drive assembly (23) to the diversion assembly (22) and convert the rotational motion of the drive assembly (23) into the fan-shaped reciprocating motion of the diversion assembly (22).

3. The vibrating sieve structure for precisely controlling the particle size distribution of calcined coke according to claim 2, characterized in that, The screening mechanism (3) further includes a second drive assembly (32), which is disposed on the screening box (1) and is used to provide vibration screening power to the double screen plate (31); and Vibration assembly (33) is installed on the screening box (1). The vibration assembly (33) is used to cooperate with the drive assembly (32) to make the double screen plate (31) perform vibration screening operation. The feeding assembly (34) is installed on the screening box (1) and is used to classify and feed the material after screening by the double screen plate (31).

4. The vibrating sieve structure for precisely controlling the particle size distribution of calcined coke according to claim 2, characterized in that, The diversion component (22) includes a rotating shaft (221) that passes through the hopper (21), and a diversion baffle (222) is fixedly connected to the outer wall of the rotating shaft (221); Among them, the rotating shaft (221) is rotatably connected to the hopper (21) through a bearing; the diversion baffle (222) is fixedly connected to the rotating shaft (221) by welding.

5. The vibrating sieve structure for precisely controlling the particle size distribution of calcined coke according to claim 2, characterized in that, The drive assembly (23) includes a motor (231) installed on the front side of the hopper (21), and the output shaft of the motor (231) is fixedly connected to a turntable (232) via a coupling. Among them, motor 1 (231) is mounted on the mounting plate on the front side of the screening box (1) by bolts, and turntable (232) is located on the left side of motor 1 (231).

6. The vibrating sieve structure for precisely controlling the particle size distribution of calcined coke according to claim 2, characterized in that, The transmission assembly (24) includes a gear (241) fixedly connected to the left end of the rotating shaft (221), a sector gear (242) rotatably connected to the left side of the screening box (1), and a transmission plate (243) rotatably connected between the sector gear (242) and the turntable (232). Among them, the gear (241) is fixedly connected to the rotating shaft (221) by welding, and the sector gear (242) is rotatably connected to the pin located on the left side of the hopper (21) by bearing.

7. The vibrating sieve structure for precisely controlling the particle size distribution of calcined coke according to claim 3, characterized in that, The second drive assembly (32) includes a second motor (321) installed on the right side of the second protective box (312). The output shaft of the second motor (321) is fixedly connected to a second rotating shaft (322) via a coupling. The left end of the second rotating shaft (322) passes through the second protective box (312) and is rotatably connected to the second protective box (312). A cam (323) is fixedly connected to the outer wall of the second rotating shaft (322). Among them, motor 2 (321) is installed on the right side of protective box 2 (312) by bolts, and rotating shaft 2 (322) is rotatably connected to protective box 2 (312) by bearing.

8. The vibrating sieve structure for precisely controlling the particle size distribution of calcined coke according to claim 3, characterized in that, The vibration assembly (33) includes two connecting rods (331) that pass through the top of the screening box (1). The bottom ends of the two connecting rods (331) are fixedly connected to the double screen plate (31), and the top ends of the two connecting rods (331) are fixedly connected to a top plate (332). The outer walls of the two connecting rods (331) are fitted with springs (333). The bottom ends of the two connecting rods (331) are fixedly connected to the double screen plate (31) by welding, and the top plate (332) is fixedly connected to the two connecting rods (331) by welding.

9. The vibrating sieve structure for precisely controlling the particle size distribution of calcined coke according to claim 3, characterized in that, The feeding assembly (34) includes two corrugated pipes (341) fixedly connected to the double screen plate (31). Two feeding pipes (342) pass through the right side of the screening box (1). One end of each feeding pipe (342) inside the screening box (1) is fixedly connected to the bottom end of the corresponding corrugated pipe (341). A feeding pipe (343) is fixedly connected to the bottom of the screening box (1). The top ends of the two corrugated pipes (341) are respectively connected to the discharge ports of the two screening planes on the double screen plate (31), so that the materials on the two screening planes on the double screen plate (31) are discharged through the corresponding corrugated pipes (341) and the discharge pipe (342).

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