A needle-shaped coke discharge screening device

Abstract

This utility model relates to a needle coke discharge screening device, belonging to the field of needle coke grading technology. To address the problem that controlling the flow rate requires shutting down the screening device and manual adjustment, which affects overall operational efficiency, this utility model uses a drive motor and a distribution seat to achieve intermittent feeding of finished needle coke. Combined with an elastic mounting frame, whose trapezoidal side design allows the finished needle coke to slide and screen along both sides of the frame, resulting in more comprehensive screening and preventing accumulation. A connecting rod and belt enable vibratory screening of the primary screen and filter frame, activating auxiliary screening for grading. This results in finer screening of the finished needle coke, facilitating later classification. The semi-automatic screening operation ensures continuous operation of the discharge screening box and improves its overall practicality.

Description

Technical Field

[0001] This utility model relates to the field of needle coke grading technology, and in particular to a needle coke discharge screening device. Background Technology

[0002] Needle coke, due to its high conductivity and ease of graphitization, is widely used not only in the production of high-power (HP) and ultra-high-power (UHP) graphite electrodes for electric arc furnace steelmaking, but also as a lithium battery anode material. Different carbon material manufacturers have different requirements for the performance of needle coke, mainly in terms of particle size. Therefore, needle coke is screened to meet different customer needs and maximize its application value.

[0003] Chinese Patent Publication No. CN213700700U discloses a needle coke discharge screening device, including a screening screen, a hopper, and a belt conveyor. The screening screen is hung below the discharge port of the finished product silo via a chain. The screening screen is inclined and has an over-screen discharge port at its lower end. The screening screen is connected to the hopper, and the bottom of the hopper has an under-screen discharge port. A belt conveyor is located below the under-screen discharge port. A vibrating motor is installed on the bottom surface of the screening screen, and a baffle plate is installed on the top of the screening screen. The outer frame of the screening screen has multiple adjustment holes, and the angle of the baffle plate is adjustable. This utility model is reasonably designed and easy to operate. It can not only adjust the size of the needle coke particles, but also control the screening flow rate through the baffle plate, avoiding the problem of material accumulating at the over-screen discharge port and being unable to be screened, thus improving work efficiency.

[0004] The existing technical solution has the following shortcomings: During the use of this screening device, the flow rate of the screening device is controlled by adjusting the angle of the baffle plate. This requires the operator to pay close attention to the use of the screening device at all times. When it is necessary to control the flow rate, the screening device needs to be turned off and manually adjusted. This method will affect the overall operating efficiency. Therefore, it is necessary to design a needle coke discharge screening device to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a needle coke discharge screening device to solve the problem mentioned in the background art that the screening device needs to be turned off and manually adjusted when the flow rate is controlled, which will affect the overall operating efficiency.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a needle coke discharge screening device, comprising a discharge screening box, an inlet provided on the upper surface of the discharge screening box, two sets of arc-shaped seats provided inside the discharge screening box, the inlet communicating with the interior of the arc-shaped seats, a material dividing seat provided between the two sets of arc-shaped seats, and the material dividing seat rotatably connected to the inner wall of the discharge screening box, dividing the interior of the material dividing seat into three equal parts, a drive motor provided on one side of the discharge screening box, and the output shaft of the drive motor fixedly connected to one side of the material dividing seat, a rotating rod provided inside the discharge screening box, the rotating rod being located below the arc-shaped seats, a striking plate fixed on the outer surface of the rotating rod, and an elastic mounting frame fixed inside the discharge screening box, and the interior of the elastic mounting frame being fixed... The system has two sets of primary screens. Both ends of the discharge screening box have discharge ports. A guide seat is provided on the outer surface of the discharge screening box, and a guide cavity is provided inside the guide seat. The interior of the discharge screening box is connected to the interior of the guide cavity via the discharge port. A filter frame is provided inside the discharge screening box, and the filter frame is located below the elastic mounting frame. A receiving frame A is slidably connected inside the discharge screening box, and the receiving frame A is located below the filter frame. A receiving frame B is provided on one side of the discharge screening box, and the receiving frame B is located below the distribution seat. An mounting sleeve is provided on one side of the discharge screening box, and two sets of connecting rods are rotatably connected inside the mounting sleeve. The two sets of connecting rods are connected by a belt drive, and the other ends of the two sets of connecting rods are fixedly connected to one side of the distribution seat and one side of the rotating rod, respectively.

[0007] Preferably, the side view of the elastic mounting frame is trapezoidal, and the length of the striking plate is greater than the distance from the rotating rod to the upper surface of the elastic mounting frame.

[0008] Preferably, the inner wall of the discharge screening box is provided with two sets of mounting brackets, and the interior of each set of mounting brackets is provided with a connecting groove. The lower surface of the filter screen frame is fixed with two sets of connecting blocks, and the connecting blocks are slidably connected to the connecting grooves. The size of the two sets of connecting blocks matches the size of the two sets of connecting grooves.

[0009] Preferably, each of the mounting frames has a movable block fixed on the side near the outlet screening box, the outlet screening box has an adjustment groove inside, and a spring is fixed inside the adjustment groove. The upper surface of the spring is fixedly connected to the lower surface of the movable block, and the movable block is slidably connected to the inner wall of the adjustment groove.

[0010] Preferably, the lower surface of the elastic mounting frame is provided with two sets of downward pressure rods, and the lower surface of the downward pressure rods is in contact with the upper surface of the filter screen frame.

[0011] Preferably, the guide seat is C-shaped when viewed from above, and the guide cavities at both ends of the discharge screening box are inclined, with the side of the guide cavity closest to the receiving frame B being the lower side.

[0012] Compared with the prior art, the technical solution provided by this utility model has the following advantages:

[0013] The finished needle coke is intermittently fed through a drive motor and a distribution seat. Combined with a flexible mounting frame, the trapezoidal shape of the frame allows for sliding screening of the finished needle coke along both sides, resulting in more comprehensive screening and preventing accumulation. The intercepted needle coke enters the guide chamber along the primary screen and falls onto the receiving frame B for centralized collection. Needle coke particles smaller than the primary screen aperture fall into the filter frame for further screening. A portion of the needle coke is intercepted inside the filter frame, while the remainder falls into the receiving frame A for collection, achieving graded screening and finer separation, which is beneficial for later classification. Vibration screening of the primary screen and filter frame is achieved via connecting rods and belts, activating auxiliary screening. This semi-automatic screening operation ensures continuous operation of the outgoing screening box and improves its overall practicality. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0016] Figure 2 This is a side-sectional three-dimensional structural diagram of the present invention;

[0017] Figure 3 This is a three-dimensional structural diagram of the material distribution seat of this utility model;

[0018] Figure 4 This is a three-dimensional structural diagram of the flow guide seat of this utility model.

[0019] The following are the annotations in the diagram: 1. Outlet screening box; 11. Feed inlet; 12. Arc-shaped seat; 121. Distributor seat; 13. Rotating rod; 131. Striking plate; 14. Elastic mounting frame; 141. Primary screen; 142. Pressing rod; 15. Mounting frame; 151. Connecting groove; 152. Moving block; 153. Spring; 2. Guide seat; 21. Guide cavity; 3. Receiving frame A; 4. Mounting sleeve; 41. Connecting rod; 42. Belt; 5. Filter screen frame; 51. Connecting block; 6. Receiving frame B. 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings.

[0022] Combination Figure 1 , Figure 2 , Figure 3 and Figure 4This utility model discloses a needle coke discharge screening device, comprising a discharge screening box 1, an inlet 11 on the upper surface of the discharge screening box 1, two sets of arc-shaped seats 12 inside the discharge screening box 1, the inlet 11 being connected to the interior of the arc-shaped seats 12, a dividing seat 121 between the two sets of arc-shaped seats 12 being rotatably connected to the inner wall of the discharge screening box 1, dividing the interior of the dividing seat 121 into three equal parts, a drive motor being provided on one side of the discharge screening box 1, and the output shaft of the drive motor being fixedly connected to one side of the dividing seat 121, a rotating rod 13 being provided inside the discharge screening box 1, the rotating rod 13 being located below the arc-shaped seats 12, a striking plate 131 being fixed on the outer surface of the rotating rod 13, and an elastic mounting frame 14 being fixed inside the discharge screening box 1, with two sets of primary screens fixed inside the elastic mounting frame 14. The screen 141 has discharge ports at both ends. The outer surface of the screen 1 is provided with a guide seat 2, and the inside of the guide seat 2 is provided with a guide cavity 21. The inside of the screen 1 is connected to the inside of the guide cavity 21 through the discharge. The inside of the screen 1 is provided with a filter screen frame 5, and the filter screen frame 5 is located below the elastic mounting frame 14. The inside of the screen 1 is slidably connected with a receiving frame A3, and the receiving frame A3 is located below the filter screen frame 5. The side of the screen 1 is provided with a receiving frame B6, and the receiving frame B6 is located below the distribution seat 121. The side of the screen 1 is provided with a mounting sleeve 4, and the inside of the mounting sleeve 4 is rotatably connected with two sets of connecting rods 41. The two sets of connecting rods 41 are connected by a belt 42. The other ends of the two sets of connecting rods 41 are fixedly connected to one side of the distribution seat 121 and one side of the rotating rod 13, respectively.

[0023] The present invention will be further described below with reference to the embodiments.

[0024] Combination Figure 2 , Figure 3 and Figure 4The side view of the elastic mounting frame 14 is trapezoidal. The length of the striking plate 131 is greater than the distance from the rotating rod 13 to the upper surface of the elastic mounting frame 14. Two sets of mounting brackets 15 are provided on the inner side wall of the discharge screening box 1, and each set of mounting brackets 15 has a connecting groove 151 inside. Two sets of connecting blocks 51 are fixed on the lower surface of the filter screen frame 5, and the connecting blocks 51 are slidably connected to the connecting grooves 151. The size of the two sets of connecting blocks 51 matches the size of the two sets of connecting grooves 151. The side of the mounting bracket 15 near the discharge screening box 1 is fixed with a movable... Block 152, the inside of the discharge screening box 1 is provided with an adjustment groove, and a spring 153 is fixed inside the adjustment groove. The upper surface of the spring 153 is fixedly connected to the lower surface of the moving block 152. The moving block 152 is slidably connected to the inner wall of the adjustment groove. The lower surface of the elastic mounting frame 14 is provided with two sets of downward pressure rods 142, and the lower surface of the downward pressure rods 142 is in contact with the upper surface of the filter screen frame 5. The guide seat 2 is C-shaped when viewed from above. The guide cavities 21 at both ends of the discharge screening box 1 are inclined. The side of the guide cavity 21 closer to the receiving frame B6 is the lower side.

[0025] In this embodiment, when the discharge screening box 1 needs to be used, the finished needle coke enters the interior of the arc-shaped seat 12 through the feed inlet 11. The drive motor rotates the distribution seat 121, allowing the finished needle coke to be intermittently discharged. When the finished needle coke falls onto the elastic mounting frame 14 through the distribution seat 121, the trapezoidal shape of the side of the elastic mounting frame 14 allows the finished needle coke to slide and be screened along both sides of the elastic mounting frame 14, resulting in more comprehensive screening and preventing accumulation. The intercepted finished needle coke enters the guide cavity 21 along the primary screen 141 and falls along the lower surface of the guide cavity 21 into the collection frame B6 for centralized collection. Finished needle coke with a particle size smaller than the aperture of the primary screen 141 falls into the filter frame 5 for screening. A portion of the finished needle coke is intercepted inside the filter frame 5, and a portion falls into the collection frame A3 for collection. The current grading and screening process makes the finished needle coke more finely screened, which is beneficial for subsequent classification. Under the rotation of the distribution seat 121, the rotating rod 13 is rotated through the connecting rod 41 and the belt 42. Under the vibration of the striking plate 131 and the elasticity of the elastic mounting frame 14, the elastic mounting frame 14 and the primary screen 141 achieve primary vibration screening. During the descent of the elastic mounting frame 14, the pressing rod 142 squeezes the filter screen frame 5, and with the help of the spring 153, the filter screen frame 5 achieves secondary vibration screening, which starts the auxiliary screening function. The entire semi-automatic screening operation realizes the continuity of the operation of the discharge screening box 1 and improves the overall practicality of the discharge screening box 1. When it is necessary to remove the finished needle coke inside the filter screen frame 5 or to change the screening aperture of the filter screen frame 5, it can be separated from the connecting groove 151 by the connecting block 51 at the bottom of the filter screen frame 5. The operation is simple and convenient, which improves the flexibility of the discharge screening box 1.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A needle-shaped coke discharge screening device, comprising a discharge screening box (1), characterized in that: The upper surface of the discharge screening box (1) is provided with a feed inlet (11). The interior of the discharge screening box (1) is provided with two sets of arc-shaped seats (12). The feed inlet (11) is connected to the interior of the arc-shaped seats (12). A material distribution seat (121) is provided between the two sets of arc-shaped seats (12), and the material distribution seat (121) is rotatably connected to the inner wall of the discharge screening box (1). The material distribution seat (121) divides the interior of the material distribution seat (121) into three equal parts. One side of the discharge screening box (1) is provided with The discharge screening box (1) is equipped with a drive motor, and the output shaft of the drive motor is fixedly connected to one side of the material distribution seat (121). A rotating rod (13) is installed inside the discharge screening box (1), and the rotating rod (13) is located below the arc-shaped seat (12). A striking plate (131) is fixed to the outer surface of the rotating rod (13). An elastic mounting frame (14) is fixed inside the discharge screening box (1), and two sets of primary screens (141) are fixed inside the elastic mounting frame (14). The two... Each end is provided with a discharge port. The outer surface of the discharge screening box (1) is provided with a flow guide seat (2), and the inside of the flow guide seat (2) is provided with a flow guide cavity (21). The inside of the discharge screening box (1) is connected to the inside of the flow guide cavity (21) through the discharge. The inside of the discharge screening box (1) is provided with a filter screen frame (5), and the filter screen frame (5) is located below the elastic mounting frame (14). The inside of the discharge screening box (1) is slidably connected with a receiving frame A (3), and the receiving frame A (3) is located below the filter. Below the mesh frame (5), a receiving frame B (6) is provided on one side of the discharge screening box (1), and the receiving frame B (6) is located below the material distribution seat (121). An installation sleeve (4) is provided on one side of the discharge screening box (1), and two sets of connecting rods (41) are rotatably connected inside the installation sleeve (4). The two sets of connecting rods (41) are connected by a belt (42). The other ends of the two sets of connecting rods (41) are fixedly connected to one side of the material distribution seat (121) and one side of the rotating rod (13), respectively.

2. The needle-shaped coke discharge screening device according to claim 1, characterized in that: The side view of the elastic mounting frame (14) is trapezoidal, and the length of the striking plate (131) is greater than the distance from the rotating rod (13) to the upper surface of the elastic mounting frame (14).

3. The needle-shaped coke discharge screening device according to claim 1, characterized in that: The inner wall of the screening box (1) is provided with two sets of mounting brackets (15), and the interior of each set of mounting brackets (15) is provided with a connecting groove (151). The lower surface of the filter frame (5) is fixed with two sets of connecting blocks (51), and the connecting blocks (51) are slidably connected to the connecting grooves (151). The size of the two sets of connecting blocks (51) matches the size of the two sets of connecting grooves (151).

4. The needle-shaped coke discharge screening device according to claim 3, characterized in that: Each of the mounting brackets (15) has a movable block (152) fixed on the side near the outlet screening box (1). The outlet screening box (1) has an adjustment groove inside, and a spring (153) is fixed inside the adjustment groove. The upper surface of the spring (153) is fixedly connected to the lower surface of the movable block (152). The movable block (152) is slidably connected to the inner wall of the adjustment groove.

5. The needle-shaped coke discharge screening device according to claim 1, characterized in that: The lower surface of the elastic mounting frame (14) is provided with two sets of pressing rods (142), and the lower surface of the pressing rods (142) is in contact with the upper surface of the filter screen frame (5).

6. The needle-shaped coke discharge screening device according to claim 1, characterized in that: The guide seat (2) is C-shaped when viewed from above. The guide cavities (21) at both ends of the discharge screening box (1) are inclined. The side of the guide cavity (21) closest to the receiving frame B (6) is on the lower side.

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