Granulating device for a recarburizer

Abstract

The utility model discloses a kind of granulating processing devices of carbon additive, belong to carbon additive processing technical field, including granulating box, the side surface of granulating box is equipped with pulverization box, the bottom surface of pulverization box is communicated with the peripheral side of granulating box, two mounting brackets are symmetrically equipped in the inner chamber of pulverization box, the side surface of two mounting brackets is equipped with pulverization motor, the output end of two pulverization motors is all connected with the pulverization roller for pulverizing carbon additive and is penetrated mounting bracket, the side surface of pulverization box is equipped with fixed bracket, the side surface of fixed bracket is equipped with driving motor, the output end of driving motor is connected with threaded shaft and is penetrated fixed bracket, the peripheral side of threaded shaft is threadedly sleeved with moving bracket, the side surface of moving bracket is penetrated to the inner chamber of pulverization box and is connected with the side surface of one mounting bracket and is fixed.The granulating processing device of the carbon additive, solved the problem that it is easy to cause blockage to die hole, it is easy to cause damage to template or hydraulic system, improve the quality and efficiency of carbon additive granulation.

Description

Technical Field

[0001] This utility model belongs to the field of carbon raiser processing technology, and in particular, a granulation processing device for carbon raisers. Background Technology

[0002] Carbon refining agents are carbon-containing substances added to replenish the carbon content lost during steel smelting. Depending on the raw materials and production processes, carbon refining agents include wood-based carbon, coal-based carbon, coke, graphite, etc. To facilitate packaging and use, carbon refining agents are usually made into granules. However, most granulation equipment currently lacks a crushing structure. Since the raw materials of carbon refining agents are mostly irregular lumps or heterogeneous coarse particles, larger raw materials can easily clog the die holes. When the die holes are clogged, the continuous downward pressure of the hydraulic platen can cause pressure buildup, which may damage the die or hydraulic system, increase equipment maintenance costs, and prevent granulation processing, thereby reducing the quality and efficiency of carbon refining agent granulation.

[0003] A Chinese patent (authorization announcement number CN221156537U) discloses a carbon additive processing device, which includes: "a device box, a hydraulic press is provided on the top of the device box, a hydraulic rod is provided at the bottom of the hydraulic press, a connecting block is provided at the bottom of the hydraulic rod, a pressure plate is provided at the bottom of the connecting block, a granulating plate is provided at the bottom of the pressure plate, and large granulation holes are provided on the surface of the granulating plate." It is evident that the cited patent document has the problem of easily clogging the mold holes, causing equipment damage. Utility Model Content

[0004] The purpose of this invention is to provide a granulation processing device for carbon raisers to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a granulation processing device for carbon raisers, comprising a granulation box, a crushing box mounted on one side of the granulation box, the bottom surface of the crushing box communicating with the periphery of the granulation box, two mounting frames symmetrically arranged in the inner cavity of the crushing box, a crushing motor mounted on one side of each of the two mounting frames, the output ends of the two crushing motors passing through the mounting frames and connected to crushing rollers for crushing carbon raisers, a fixing frame mounted on one side of the crushing box, a drive motor mounted on one side of the fixing frame, the output end of the drive motor passing through the fixing frame and connected to a threaded shaft, a movable frame threadedly fitted on the periphery of the threaded shaft, one side of the movable frame passing through the inner cavity of the crushing box and connected and fixed to one side of one of the mounting frames.

[0006] Preferably, the inner sidewall of the granulation box has two symmetrically formed fixing grooves, and the two fixing grooves are provided with a granulation plate for granulating the carbon raiser.

[0007] Preferably, the inner bottom surfaces of both fixing grooves are equipped with sliders, and the bottom surface of the granulation plate is symmetrically provided with sliding grooves that are adapted to slide between the two sliders.

[0008] Preferably, the inner walls of both fixing slots are equipped with horizontal blocks, the inner cavities of both horizontal blocks are threadedly connected to screws, and the bottom ends of both screws are rotatably connected to pressure blocks for pressing the granulation plate.

[0009] Preferably, a connecting box is installed on one side of the granulation box, and a servo motor is installed on one side of the connecting box.

[0010] Preferably, the output end of the servo motor extends through the inner cavity of the connecting box and is connected to a threaded rod, and a moving block is threaded around the periphery of the threaded rod.

[0011] Preferably, one side of the movable block is connected to a cylinder that extends into the inner cavity of the granulation box, the free end of the cylinder is connected to a rectangular block, and the top surface of the rectangular block is connected to a bidirectional blade for cutting the carbon raiser.

[0012] Compared with the prior art, the technical effects and advantages of this utility model are as follows: The granulation processing device for the carbon raiser can drive the threaded shaft to rotate via a drive motor, and in conjunction with the moving frame, push one of the mounting frames to move, thereby achieving adjustment of the distance between the two crushing rollers.

[0013] Simultaneously, the crushing motor drives the crushing roller to rotate, and with the adjustment between the two crushing rollers, it can crush graphite-based and coke-based carburizing agents with different hardness. Compared with the existing equipment that processes carburizing agents into granules, this device can crush the carburizing agent in advance to avoid clogging the die holes and causing damage to the die and hydraulic system. Attached Figure Description

[0014] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific 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 from these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a side sectional view of the granulating cylinder and crushing box of this utility model; Figure 3 This is a top sectional view of the pulverizing box of this utility model; Figure 4 For the present utility model Figure 2 An enlarged schematic diagram of the structure at point A in the middle.

[0016] Explanation of reference numerals in the attached figures: In the diagram: 1. Granulation box; 2. Crushing box; 3. Mounting frame; 4. Crushing motor; 5. Crushing roller; 6. Fixing frame; 7. Drive motor; 8. Threaded shaft; 9. Moving frame; 10. Fixing groove; 11. Granulation plate; 12. Slider; 13. Slide groove; 14. Horizontal block; 15. Screw; 16. Pressing block; 17. Connecting box; 18. Servo motor; 19. Threaded rod; 20. Moving block; 21. Cylinder; 22. Rectangular block; 23. Bidirectional blade. Detailed Implementation

[0017] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid confusion with the present invention.

[0018] Unless otherwise defined, the directions mentioned herein, such as up, down, left, right, front, back, inside, and outside, are based on the directions shown in the figures of this utility model, and are explained here together.

[0019] The connection method can be any existing method, such as bonding, welding, or bolting, depending on the actual needs.

[0020] like Figures 1 to 4 The apparatus shown is a granulation processing device for carbon additives, including a granulation box 1. One side of the granulation box 1 is connected to a box door via a hinge. The box door and the granulation box 1 are connected and fixed by an electric buckle with a mechanical emergency unlocking device to ensure that the box door can be forcibly opened in case of power failure or malfunction. A sealing strip and a position sensor are installed on the mating surface of the box door and the granulation box 1. When the sensor detects that the box door is not locked, the equipment cannot be started.

[0021] A crushing box 2 is installed on one side of the granulation box 1. The bottom of the crushing box 2 is connected to the periphery of the granulation box 1. Two mounting frames 3 are symmetrically arranged inside the crushing box 2. A crushing motor 4 is installed on one side of each mounting frame 3. The output ends of the two crushing motors 4 are connected to crushing rollers 5 for crushing the carbon raiser through the mounting frames 3. If it is necessary to crush irregular blocks or non-homogeneous coarse particles, the carbon raiser is added into the crushing box 2 so that it can fall between the two crushing rollers 5. Then, the two crushing motors 4 are turned on simultaneously to drive the crushing rollers 5 to rotate and crush the carbon raiser. The crushed carbon raiser will fall through the crushing box 2 into the granulation box 1 for granulation. This avoids the blockage of the die holes, which could damage the die and hydraulic system. This improves the quality and efficiency of the carbon raiser granulation process. The surface of the crushing rollers 5 is designed with a toothed texture (such as a sawtooth or spiral shape). The tooth shape can enhance the tearing and squeezing effect on the carbon raiser, thus improving the crushing effect.

[0022] Each of the two mounting brackets 3 has a protective cover installed on one side to protect the crushing motor 4. The two crushing motors 4 are the same type of variable frequency motor (e.g., 0.75kW, 1400r / min). The PLC collects the encoder signals of the two crushing motors 4 and calculates the speed difference in real time. When the speed difference is greater than 2r / min, the PLC automatically adjusts the frequency of one of the crushing motors 4 (e.g., the faster motor is reduced by 0.1Hz and the slower motor is increased by 0.1Hz) until the speeds are the same. Soft start synchronization is used during startup. The PLC controls both motors to increase their frequencies simultaneously, so that the two crushing motors 4 drive the two crushing rollers 5 to rotate synchronously, avoiding the accumulation of raw materials caused by one motor starting first and the other last.

[0023] A fixed frame 6 is installed on one side of the crushing box 2, and a drive motor 7 is installed on the other side of the fixed frame 6. The output end of the drive motor 7 passes through the fixed frame 6 and is connected to a threaded shaft 8. A movable frame 9 is threaded around the circumference of the threaded shaft 8. One side of the movable frame 9 passes through the inner cavity of the crushing box 2 and is connected and fixed to one side of one of the mounting frames 3. One side of the other mounting frame 3 is welded to the inner wall of the crushing box 2 by a welding block. By turning on the drive motor 7, the threaded shaft 8 is rotated, which moves the movable frame 9, thereby moving one of the mounting frames 3 and the crushing roller 5, thus shortening the distance between the two crushing rollers 5. This allows the distance between the two crushing rollers 5 to be adjusted according to the different hardness of graphite-based and coke-based carburizing agents.

[0024] Two slide rails are symmetrically installed on the inner walls of both sides of the crushing box 2. The mounting frame 3, which is connected and fixed to the movable frame 9, has sliding blocks that are slidably sleeved around the slide rails on both sides, which can limit the movement of the mounting frame 3 and prevent deviation. Two limit rods are symmetrically welded to the inner wall of the fixed frame 6. The movable frame 9 is slidably sleeved around the limit rods, which can limit the movement of the movable frame 9. A guide plate is bolted to the inner wall of the crushing box 2 and above the two mounting frames 3. The top surface of the guide plate has a groove, and the top surface of the guide plate is recessed into the groove, so that the carbonizer entering the crushing box 2 can pass through the groove and fall between the two crushing rollers 5 for crushing. Since the guide plate is bolted to the inner cavity of the crushing box 2, the guide plate can be disassembled for cleaning.

[0025] The granulation box 1 is connected to the feed box on its periphery, so that the carbonizer that does not need to be crushed can be added directly from the feed box into the granulation box 1. The top of the crushing box and the feed box is designed with an interlocked feed hopper (such as a flip-top feed port). With the help of a proximity switch, the crushing motor 4 cannot be started when the feed port is not closed, which prevents accidental contact and reduces dust leakage.

[0026] Two fixing grooves 10 are symmetrically opened on the inner sidewall of the granulation box 1. Both fixing grooves 10 share a granulation plate 11 for granulating the carbon raiser. The top surface of the granulation plate 11 has several die holes for the carbon raiser to pass through. A slider 12 is installed on the inner bottom surface of each of the two fixing grooves 10. The bottom surface of the granulation plate 11 has symmetrically opened sliding grooves 13 that slide to fit the two sliders 12. A horizontal block 14 is installed on the inner sidewall of each of the two fixing grooves 10. A screw 15 is threadedly connected to the inner cavity of each of the two horizontal blocks 14. A handle is connected to the top of each of the two screws 15, and a pressure block 16 for pressing the granulation plate 11 is rotatably connected to the bottom of each of the two screws 15. Initially, multiple die hole areas on the top surface of the granulation plate 11 are located within the inner cavity of the granulation box 1. The top surface is located in the inner cavity of two fixed grooves 10 on both sides and is pressed and fixed by the pressure block 16. If it is necessary to replace the pelletizing plate 11 to produce carbon repressant granules of different diameters, first turn the handle to drive the screw 15 to rotate. Since the horizontal block 14 and the screw 15 are connected by threads, the screw 15 will move upward along the thread of the inner cavity of the horizontal block 14 when it rotates, thereby driving the pressure block 16 to move upward and cancel the pressure block 16 on the pelletizing plate 11. At this time, the pelletizing plate 11 can be pulled horizontally so that the pelletizing plate 11 can move around the slider 12 through the slide groove 13. The pelletizing plate 11 can then be taken out from the pelletizing box 1. Replace the pelletizing plate 11 with a different die hole inner diameter to produce carbon repressant granules of different diameters. It can also clean the blocked die holes.

[0027] A baffle is welded to the inner edge of the granulating plate 11 located in the cavity of the fixed groove 10, near the cavity of the granulating box 1. The horizontal section of the baffle covers the junction of the bottom surface of the fixed groove 10 and the cavity of the granulating box 1, forming the first barrier to intercept the raw material flowing into the fixed groove 10. An elastic sealing lip (made of nitrile rubber, with a height matching the template baffle) is installed at the opening of the fixed groove 10 near the cavity of the granulating box 1. After the granulating plate 11 is pushed in, the sealing lip and the baffle fit tightly together to form the second barrier, completely preventing the carbonizer from entering the fixed groove 10.

[0028] A hydraulic cylinder is installed on the top surface of the granulation box 1. The moving part of the hydraulic cylinder extends into the inner cavity of the granulation box 1 and is connected to a pressure plate. After the carbonizer is crushed or added to the crushing box 2, the hydraulic cylinder is turned on, which drives the pressure plate to move downward and squeeze the carbonizer. After being squeezed, the carbonizer is squeezed out from the die hole of the granulation plate 11 for granulation.

[0029] A connecting box 17 is installed on one side of the granulation box 1, and a servo motor 18 is installed on the other side of the connecting box 17. The output end of the servo motor 18 extends through the inner cavity of the connecting box 17 and is connected to a threaded rod 19. A moving block 20 is threaded around the periphery of the threaded rod 19. A cylinder 21 extending through the inner cavity of the granulation box 1 is connected to one side of the moving block 20. A rectangular block 22 is connected to the free end of the cylinder 21. A bidirectional blade 23 for cutting the carbon raiser is connected to the top surface of the rectangular block 22. The bidirectional blade 23 is positioned as close as possible to... Near the granulation plate 11, after the carbon raiser is extruded from the die hole, the servo motor 18 is turned on, which drives the threaded rod 19 to rotate, thereby driving the moving block 20 and the cylinder 21 to move. One end of the cylinder 21 can be positioned in the inner cavity of the granulation box 1, so that the cylinder 21 can drive the rectangular block 22 and the bidirectional blade 23 to move. In conjunction with the servo motor 18 driving the threaded rod 19 to rotate forward and backward, the bidirectional blade 23 can reciprocate, thereby cutting and granulating the carbon raiser extruded from the die hole.

[0030] A double-lip seal ring and a dust cover (not shown) are installed at the penetration point between the cylinder 21 and the pelletizing box 1. The inner lip seal ring (nitrile rubber) prevents dust from entering the connecting box 17, and the outer telescopic dust cover (accordion type) blocks external impurities.

[0031] A slide is welded to the inner wall of the connecting box 17 and below the threaded rod 19. The moving block 20 is slidably sleeved on the periphery of the slide, so that the moving block 20 moves on the periphery of the slide when it moves, which can limit the movement of the moving block 20 and prevent deviation.

[0032] The threaded rod 19 is made of stainless steel (304+ surface nitriding treatment (hardness HV≥800)). The moving block 20 is inlaid with a self-lubricating copper sleeve (containing graphite particles) to reduce dust wear. The slide surface is sprayed with a polytetrafluoroethylene coating (friction coefficient ≤0.05) to reduce sliding resistance.

[0033] Working principle: When the granulation processing device for this carbon raiser needs to crush irregular lumps or heterogeneous coarse particles, the drive motor 7 is first turned on, driving the threaded shaft 8 to rotate, which in turn moves the moving frame 9, thereby moving one of the mounting frames 3 and the crushing roller 5. This shortens the distance between the two crushing rollers 5, allowing the distance between them to be adjusted according to the different hardness of graphite-based and coke-based carbon raisers. After adjusting to a suitable distance, the carbon raiser is added to the crushing box 2, allowing it to fall between the two crushing rollers 5. Then, the two crushing motors 4 are turned on, driving the crushing rollers 5 to rotate and crush the carbon raiser. The crushed carbon raiser passes through the crushing box 2 and falls into the granulation box 1, then onto the surface of the granulation plate 11. The hydraulic cylinder is then activated, moving the pressure plate downward to squeeze the carbon raiser. After being squeezed, the carbon raiser is extruded from the die holes of the granulation plate 11 for granulation, avoiding die hole blockage and damage to the template and hydraulic system, thus improving the quality and efficiency of carbon raiser granulation processing.

[0034] It should be noted that, in this document, relational terms such as "one" and "two" are used merely 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 a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0035] 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 granulation processing apparatus for a carbon raiser, comprising a granulation box (1), characterized in that: A crushing box (2) is installed on one side of the granulation box (1). The bottom surface of the crushing box (2) is connected to the periphery of the granulation box (1). Two mounting brackets (3) are symmetrically arranged in the inner cavity of the crushing box (2). A crushing motor (4) is installed on one side of each of the two mounting brackets (3). The output ends of the two crushing motors (4) are connected to a crushing roller (5) for crushing carbon raiser through the mounting bracket (3). A fixing bracket (6) is installed on one side of the crushing box (2). A drive motor (7) is installed on one side of the fixing bracket (6). The output end of the drive motor (7) is connected to a threaded shaft (8) through the fixing bracket (6). A movable bracket (9) is threaded on the periphery of the threaded shaft (8). One side of the movable bracket (9) extends into the inner cavity of the crushing box (2) and is connected and fixed to one side of one of the mounting brackets (3).

2. The granulation processing apparatus for a carbon raiser according to claim 1, characterized in that: The inner sidewall of the granulation box (1) has two symmetrically opened fixing grooves (10), and the two fixing grooves (10) are provided with a granulation plate (11) for granulating the carbon raiser.

3. The granulation processing apparatus for a carbon raiser according to claim 2, characterized in that: The inner bottom surfaces of the two fixed grooves (10) are each equipped with a slider (12), and the bottom surface of the granulation plate (11) is symmetrically provided with a sliding groove (13) that is adapted to slide with the two sliders (12).

4. The granulation processing apparatus for a carbon raiser according to claim 2, characterized in that: The inner walls of the two fixing grooves (10) are each equipped with a horizontal block (14), and the inner cavities of the two horizontal blocks (14) are each connected to a screw (15) by a thread. The bottom ends of the two screws (15) are rotatably connected to a pressing block (16) for pressing the granulation plate (11).

5. The granulation processing apparatus for a carbon raiser according to claim 1, characterized in that: A connecting box (17) is installed on one side of the granulation box (1), and a servo motor (18) is installed on one side of the connecting box (17).

6. The granulation processing apparatus for a carbon raiser according to claim 5, characterized in that: The output end of the servo motor (18) extends through the inner cavity of the connecting box (17) and is connected to a threaded rod (19). A moving block (20) is threaded around the circumference of the threaded rod (19).

7. The granulation processing apparatus for a carbon raiser according to claim 6, characterized in that: One side of the moving block (20) is connected to a cylinder (21) that extends into the inner cavity of the granulation box (1). The free end of the cylinder (21) is connected to a rectangular block (22). The top surface of the rectangular block (22) is connected to a bidirectional blade (23) for cutting the carbon raiser.

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