Graphite electrode production feeding device

Abstract

The present application relates to graphite electrode production feeding technology field, especially to a kind of graphite electrode production feeding equipment, including support platform, operation display system, material box, horizontal feeding system and vertical feeding system;The present application is aimed at the problem that the end of feeding is blocked or adhered to affect metering and weighing, first, through the continuous rotation of spiral roller, the inside pipe is actively dredged;Combined with the revolution plus rotation movement of wall-sticking scraping unit, the fine powder adhered to the pipe wall is continuously scraped during the conveying process, to prevent the formation of material accumulation layer, forming mechanical dynamic scraping cleaning;Combined with airflow pulse assembly, not only provide continuous air curtain isolation, its periodic high pressure pulse generates micro-impulse wave, effectively shakes the material bridge or soft blockage just formed, forms airflow pulse disturbance protection, the above three aspects work together to solve the end material accumulation problem, realize the high-precision, high-stability conveying requirement of carbon powder mixture in graphite electrode production.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of graphite electrode production feeding, and particularly relates to a graphite electrode production feeding device. BACKGROUND

[0002] In the production process of graphite electrodes, accurate feeding and feeding of carbon powder mixture are key links to ensure consistency of density, strength and conductivity of the final product. The loss-in-weight feeder has become the mainstream feeding device in this field because it realizes high-precision closed-loop control by calculating the feeding rate through real-time monitoring of the weight loss of the entire feeding system. It collects the total weight signal at high frequency through the load-bearing system integrated in the system, and dynamically adjusts the speed of the feeding mechanism by the control system, so as to achieve stable and accurate feeding.

[0003] However, the existing loss-in-weight feeder still faces a significant technical bottleneck when feeding carbon powder and other fine powders that are prone to adhesion and static electricity. At the end of the vertical conveying section, the material is prone to adhere to the pipe wall or intermittent blockage. This part of the adhered or blocked material is not included in the discharge amount in time and continuously, which will cause the real-time measurement data of the load-bearing system to be inaccurate. More seriously, when the accumulated material suddenly collapses, it will cause instantaneous "overfeeding", which seriously damages the continuity and stability of feeding, causes the final feeding amount to deviate from the preset target, and directly affects the production quality of graphite electrodes.

[0004] Therefore, in order to effectively solve the problem of material adhesion and blockage at the end of vertical conveying and realize truly high-precision and high-stability feeding, the present application provides a graphite electrode production feeding device. SUMMARY

[0005] In order to solve the above problems, the present application provides a graphite electrode production feeding device to solve the problems mentioned in the background.

[0006] In order to achieve the above purpose, the present application provides the following technical scheme: the present application provides a graphite electrode production feeding device, which comprises a support platform, a material box arranged at the upper end of the support platform, a horizontal feeding system arranged in the interior of the material box and connected to the support platform, a vertical feeding system connected to the end of the horizontal feeding system, and a load-bearing system arranged in the interior of the support platform and used for supporting and real-time monitoring of the total weight of the material box, the horizontal feeding system and the vertical feeding system; an operation display system arranged at the upper end of the support platform and electrically connected to the horizontal feeding system, the vertical feeding system and the load-bearing system; the operation display system is used for setting the target feeding rate and the feeding amount, and coordinating the work of each system.

[0007] The vertical feeding system promotes the continuous flow of carbon powder mixture in the pipe through the active dredging mode during the feeding process, then the carbon powder mixture attached to the inner wall of the pipe is cleaned through the mechanical dynamic scraping cleaning mode, and finally the carbon powder mixture in the pipe is pulsed transported and prevented from being blocked while the air curtain is generated for protection at the same time through the airflow pulse disturbance protection mode, so that the three operation modes work together to continuously and stably transport the accumulated material at the end of the pipe.

[0008] According to an advantageous embodiment, the horizontal feeding system comprises a reducer assembly, the output end of the reducer assembly is connected with a horizontal pipe, the horizontal pipe penetrates the lower end of the tank, a material port is arranged on the outer wall of the upper end of the tank, two spiral rollers with opposite spiral directions are arranged in the horizontal pipe, and the spiral rollers are connected with the output end of the reducer assembly.

[0009] According to an advantageous embodiment, a stirrer is further arranged in the tank and connected with another output end of the reducer assembly.

[0010] According to an advantageous embodiment, the vertical feeding system comprises a vertical pipe connected with the end of the horizontal pipe, an end cover is arranged at the upper end of the vertical pipe, a longitudinal discharging unit is arranged at the middle position of the inner wall of the vertical pipe, and wall-adhesion scraping units are uniformly arranged on the inner wall of the vertical pipe and cooperated with the longitudinal discharging unit.

[0011] According to an advantageous embodiment, the longitudinal discharging unit comprises a reduction motor installed on the end cover through a motor base, an airflow pulse assembly is connected with the output shaft of the reduction motor, and a spiral roller is connected with the lower end of the airflow pulse assembly; a limiting disc is rotatably arranged in the vertical pipe and connected with the outer wall of the middle part of the output shaft of the reduction motor, a plurality of strip-shaped grooves are uniformly arranged on the lower end surface of the limiting disc along the radial direction of the limiting disc, and a limiting rod is arranged in each strip-shaped groove.

[0012] According to an advantageous embodiment, the wall-adhesion scraping unit comprises a sliding seat slidably arranged in the strip-shaped groove and movably sleeved on the outer wall of the limiting rod, a limiting spring is sleeved on the outer wall of the limiting rod and abuts against the outer wall of the sliding seat at one end and the inner wall of the strip-shaped groove at the other end; an axle is rotatably arranged at the lower end of the sliding seat, and a scraping roller is arranged at the lower end of the axle; an external gear is arranged on the middle part of the axle, an internal gear ring is further arranged in the vertical pipe and below the limiting disc, and the external gear is engaged with the internal gear ring.

[0013] According to an advantageous embodiment, the airflow pulse assembly comprises an airflow box, a partition plate is arranged in the middle of the airflow box, the airflow box is divided into two layers by the partition plate, a detachable box cover is arranged at the lower end of the airflow box, a micro motor is arranged in the upper layer of the airflow box through a motor base, and a stepped circular cone sleeve is connected to the output shaft of the micro motor; a telescopic plug is movably arranged on the circumferential outer wall of the stepped circular cone sleeve through a spring; the box cover at the lower end of the airflow box is uniformly provided with air holes for air outlet, and the air holes are matched with the telescopic plug; and a gas pump is further arranged in the upper layer of the airflow box, and the air outlet end of the gas pump is located in the lower layer of the airflow box.

[0014] According to an advantageous embodiment, the scraping roller is composed of an inner core and a glue scraping sleeve arranged on the outer wall of the inner core, and the outer wall of the glue scraping sleeve is uniformly provided with inclined glue strip protruding structures along the circumferential direction.

[0015] According to an advantageous embodiment, the inner wall of the vertical material pipe is provided with a wear-resistant lining.

[0016] Compared with the prior art, the graphite electrode production feeding device provided by the embodiment of the application has the following beneficial effects: 1. The graphite electrode production feeding device provided by the embodiment of the application is aimed at the problem of blockage or adhesion at the end of feeding, and first, the continuous rotation of the spiral roller realizes active dredging in the pipe; in combination with the revolution and rotation of the wall-adhering scraping unit, the fine powder adhering to the pipe wall is continuously scraped off in the conveying process, so that the formation of the accumulated material layer is prevented, and mechanical dynamic scraping cleaning is formed; in combination with the airflow pulse assembly, not only is a continuous air curtain isolation provided, but also a micro-impact wave is generated by the periodic high-pressure pulse, so that the material bridge or soft blockage that is just formed is effectively broken, and airflow pulse disturbance protection is formed; the above three aspects work together to solve the problem of end accumulation and realize the conveying requirement of high precision and high stability of the carbon powder mixture in graphite electrode production.

[0017] 2. In the mechanical dynamic scraping cleaning stage, the elastic installation of the scraping roller enables the scraping roller to automatically avoid when encountering an abnormally thick accumulated material layer, so that the mechanism is prevented from being stuck or damaged; and the scraping operation is ensured to be continuous and reliable by allowing the scraping roller to realize phased layering and gradual scraping. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is an external three-dimensional structure diagram of the graphite electrode production feeding device.

[0019] Figure 2 It is a front view of the graphite electrode production feeding device.

[0020] Figure 3 It is a local enlarged view of A in the graphite electrode production feeding device. Figure 2

[0021] Figure 4 It is an internal structure diagram of the airflow box. ​

[0022] Figure 5 This is a three-dimensional structural diagram of the scraper roller of the present invention.

[0023] The attached diagram shows the following components: 1. Support platform; 2. Operation display system; 3. Material box; 4. Horizontal feeding system; 5. Vertical feeding system; 41. Reducer assembly; 42. Horizontal material pipe; 43. Spiral material roller; 44. Agitator; 51. Vertical material pipe; 52. End cap; 53. Longitudinal discharge unit; 54. Wall-mounted scraping unit; 531. Gear motor; 532. Airflow pulse assembly; 533. Spiral roller; 534. Limiting disc; 535. Limiting rod; 541. Slide; 542. Limiting spring; 543. Shaft; 544. Scraper roller; 545. External gear; 546. Internal gear ring; 61. Airflow box; 62. Partition plate; 63. Micro motor; 64. Stepped frustum sleeve; 65. Telescopic plug; 66. Air pump. Detailed Implementation

[0024] The following is in conjunction with the appendix Figure 1 -Appendix Figure 5 This application will now be described in further detail.

[0025] Please refer to the following: Figure 1 A graphite electrode production feeding device includes a support platform 1, an operation display system 2, a material box 3, a horizontal feeding system 4, and a vertical feeding system 5. The material box 3 is located at the upper end of the support platform 1, and the horizontal feeding system 4 is located inside the material box 3 and connected to the support platform 1. The vertical feeding system 5 is connected to the end of the horizontal feeding system 4. A load-bearing system is also located inside the support platform 1. The operation display system 2 is located at the upper end of the support platform 1 and is electrically connected to the horizontal feeding system 4, the vertical feeding system 5, and the load-bearing system. The operation display system 2 is used to set the target feeding rate and feeding amount, and to coordinate the operation of each system.

[0026] Specifically, the target feeding rate and target feeding amount are input through the operation display system 2, and then the material is conveyed by the horizontal feeding system 4 and the vertical feeding system 5 working together. During the conveying process, the load-bearing system monitors the total weight of the entire feeding system (including the material box 3, the horizontal feeding system 4, and the vertical feeding system 5) in real time at a very high frequency (e.g., 10 times per second).

[0027] It should be noted that the bearing load system commonly used in the market includes a scale frame, a weighing sensor and a limiting piece, the material box 3, the horizontal feeding system 4 and the vertical feeding system 5 are all installed on the scale frame, ensuring that all force transmission paths are consistent and lossless. The weighing sensor is usually three or four high-precision strain gauge sensors, which are uniformly distributed in a multi-point support mode to ensure the stability of the scale body and eliminate the influence of material unbalanced load. The weighing sensor converts the weight signal into an electrical signal in real time and high resolution and transmits it to the operation display system 2 for display. The limiting piece (such as a horizontal limiting rod) is installed inside the support platform 1 to limit the horizontal movement of the scale frame, ensuring that only the vertical gravity is detected, thereby ensuring the accuracy of the weighing signal.

[0028] Referring to Figure 2 , the horizontal feeding system 4 comprises a reducer assembly 41, and the output end of the reducer assembly 41 is connected with a horizontal material pipe 42. The horizontal material pipe 42 penetrates the lower end of the material box 3, and a material port is formed on the outer wall position of the upper end of the material box 3. The inside of the horizontal material pipe 42 is provided with two spiral material rollers 43 with opposite spiral directions, and the spiral material rollers 43 are connected with the output end of the reducer assembly 41.

[0029] In specific work, the carbon powder mixture in the material box 3 is quantitatively conveyed by the spiral material rollers 43 through the work of the reducer assembly 41. It should be noted that two spiral material rollers 43 can provide more stable conveying than a single spiral material roller 43, effectively preventing the "jet flow" and "suction" phenomenon, and avoiding the periodic fluctuation of the outlet material flow and state caused by the discontinuity and unstable internal mechanical state of the single spiral material roller 43 during the conveying process, thereby providing a stable and continuous material flow for the subsequent vertical section.

[0030] Referring to Figure 1 , in order to ensure that the carbon powder mixture in the material box 3 is conveyed more uniformly and avoid the phenomenon that the falling carbon powder mixture adheres to the pipe wall to cause uneven discharge, a stirrer 44 is further rotatably arranged in the inside of the material box 3, and the stirrer 44 is connected with another output end of the reducer assembly 41. During the conveying process, the stirrer 44 is kept rotating at a low speed synchronously, so as to perform low-speed stirring operation on the carbon powder mixture in the material box 3.

[0031] Referring to Figure 1 and Figure 2 , the vertical feeding system 5 comprises a vertical material pipe 51 connected at the end of the horizontal material pipe 42. The upper end of the vertical material pipe 51 is provided with an end cover 52. A longitudinal material outlet unit 53 is arranged at the middle position in the inside of the vertical material pipe 51. Wall-adhesion material scraping units 54 are uniformly arranged on the inner wall of the vertical material pipe 51, and the wall-adhesion material scraping units 54 cooperate with the longitudinal material outlet unit 53.

[0032] When the carbon powder mixture is transported to the position of the vertical material pipe 51 from the horizontal material pipe 42, the carbon powder mixture is continuously transported through the vertical material pipe 51, at this time, the longitudinal discharging unit 53 works, which improves the uniformity of the carbon powder mixture transportation, and the wall-adhering scraping unit 54 cooperatively works, which avoids the carbon powder mixture from adhering to the inner wall of the vertical material pipe 51.

[0033] It should be noted that when the carbon powder mixture is transported in the horizontal material pipe 42 and the vertical material pipe 51 respectively, the carbon powder mixture adhering to the inner wall of the horizontal material pipe 42 has little influence on the accuracy of the feeding in the stage of the horizontal material pipe 42, and the carbon powder mixture adhering to the inner wall of the vertical material pipe 51 is at the end of the transportation, if not completely transported, it will affect the judgment of the bearing and supporting system, and if the carbon powder mixture adhering to the inner wall of the vertical material pipe 51 suddenly collapses, it will cause a large amount of falling, which will greatly increase the target feeding amount and affect the subsequent production.

[0034] Referring to Figure 2 and Figure 3 , the longitudinal discharging unit 53 comprises a speed reducer motor 531 arranged on the end cover 52 through a motor base, the output shaft of the speed reducer motor 531 is connected with an airflow pulse assembly 532, the lower end of the airflow pulse assembly 532 is connected with a spiral roller 533, the inner wall of the vertical material pipe 51 is provided with a wear-resistant lining, which is usually made of ceramic material, which can effectively reduce the abrasion of the carbon powder mixture to the inner wall of the vertical material pipe 51.

[0035] When the longitudinal discharging unit 53 works, the speed reducer motor 531 is started, the spiral roller 533 below is indirectly driven to rotate through the speed reducer motor 531 cooperating with the airflow pulse assembly 532, the rotation of the spiral roller 533 can effectively avoid the carbon powder mixture in the vertical material pipe 51 from being blocked, and improve the continuity of the carbon powder mixture transportation.

[0036] Referring to Figure 3 , the outer wall of the middle part of the output shaft of the speed reducer motor 531 is connected with a limiting disc 534 rotatingly arranged in the vertical material pipe 51, the lower end surface of the limiting disc 534 is uniformly provided with a plurality of strip-shaped grooves along the radial direction thereof, and the inside of the strip-shaped grooves is provided with a limiting rod 535.

[0037] Referring to Figure 3 , the wall-adhering scraping unit 54 comprises a sliding seat 541 slidingly arranged in the strip-shaped groove, the sliding seat 541 is movably sleeved on the outer wall of the limiting rod 535, and a limiting spring 542 having one end abutting against the outer wall of the sliding seat 541 and the other end abutting against the inner wall of the strip-shaped groove is also sleeved on the outer wall of the limiting rod 535; the lower end of the sliding seat 541 is rotatably provided with a shaft rod 543, and the lower end of the shaft rod 543 is provided with a scraping roller 544; the middle part of the outer wall of the shaft rod 543 is provided with an external gear 545, and the inside of the vertical material pipe 51 and below the limiting disc 534 is also provided with an internal tooth ring 546, and the external gear 545 is engaged with the internal tooth ring 546.

[0038] Specifically, when the wall-adhering scraping unit 54 is in operation, the reduction motor 531 is in operation, and the synchronous belt drives the limiting disc 534 to rotate, and the outer gear 545 installed at the lower end of the limiting disc 534 rotates synchronously around the output shaft of the reduction motor 531, and the outer gear 545 is in mesh with the inner tooth ring 546, at this time, the inner tooth ring 546 drives the scraping roller 544 connected below to rotate, and through the rotation of the scraping roller 544 around the inner wall of the vertical material pipe 51 and the self-rotation of the scraping roller 544, the scraping effect of the scraping roller 544 on the carbon powder mixture adhered to the inner wall of the vertical material pipe 51 is effectively improved, and the feeding accuracy is ensured.

[0039] At the same time, in order to avoid the situation that the inner wall of the vertical material pipe 51 is filled with too much material, causing interference when the scraping roller 544 rotates to scrape, the sliding seat 541 is set to be movable, when the carbon powder mixture adhered to the inner wall of the vertical material pipe 51 is relatively thick, the carbon powder mixture will resist the scraping roller 544 when it contacts the scraping roller 544, and the resistance received by the scraping roller 544 will compress the limiting spring 542, so that the sliding seat 541 slides to the center to avoid being stuck, and after giving way, the scraping is realized in layers and step by step, ensuring the continuity and reliability of the scraping operation.

[0040] In order to further improve the scraping effect of the scraping roller 544, referring to Figure 5 , the scraping roller 544 is composed of an inner core and a scraping rubber sleeve sleeved on the outer wall of the inner core, and the outer wall of the scraping rubber sleeve is uniformly provided with inclined rubber strip protruding structures along the circumferential direction; in specific use, the scraping rubber sleeve can be replaced regularly according to the use period to ensure the scraping effect of the scraping roller 544; and the outer wall of the scraping rubber sleeve is uniformly provided with inclined rubber strip protruding structures along the circumferential direction, which can effectively improve the scraping adhesion.

[0041] In order to further reduce the probability of carbon powder mixture adhering to the inner wall of the vertical material pipe 51 and blocking the carbon powder mixture during the conveying process of the vertical material pipe 51, referring to Figure 3 and Figure 4 , the airflow pulse assembly 532 includes an airflow box 61, a partition plate 62 is arranged in the middle of the airflow box 61, the airflow box 61 is divided into two layers by the partition plate 62, the lower end cover of the airflow box 61 is detachably arranged, a micro motor 63 is arranged on the upper layer of the airflow box 61 through a motor base, and a stepped circular cone sleeve 64 is connected to the output shaft of the micro motor 63; a telescopic plug 65 is movably arranged on the circumferential outer wall of the stepped circular cone sleeve 64 through a spring; the lower end cover of the airflow box 61 is uniformly provided with air holes for air outlet, and the air holes are matched with the telescopic plug 65; a gas pump 66 is further arranged in the upper layer of the airflow box 61, and the air outlet end of the gas pump 66 is located in the lower layer of the airflow box 61.

[0042] Specifically, because the air pump 66 is always working, it continuously fills the lower layer of the air flow box 61 with air, which escapes through the air holes. The escaping air is finally sprayed along the outlet end of the vertical material pipe 51 after being sprayed from multiple directions. The sprayed air can effectively prevent the carbon powder mixture from adhering to the inner wall of the vertical material pipe 51 or being blocked inside. At the same time, in order to further improve the impact effect of the air, the miniature motor 63 is intermittently driven to rotate the stepped cone sleeve 64 intermittently. The intermittent rotation of the stepped cone sleeve 64 causes the expansion plug 65 to periodically block and open the air holes. During the blocking stage, the air pressure in the lower layer of the air flow box 61 increases. At the moment of opening, the accumulated high-pressure air forms a pulse air flow that is sprayed from the air holes. The above-mentioned pulse air flow can effectively impact the inner wall of the vertical material pipe 51 and the material, significantly reducing the risk of material adhesion and blockage.

[0043] It should be noted that in the vertical feeding system 5, the spiral roller 533 in the longitudinal discharge unit 53 continuously rotates to provide a stable downward conveying force, actively unblocking the material falling process; in order to prevent material accumulation on the pipe wall, the scraping roller 544 is driven by the reduction motor 531 to "revolve" across the entire pipe wall of the vertical material pipe 51 and "rotate" through gear engagement, forming an efficient dynamic scraping and cleaning; at the same time, further cooperating with the air pulse assembly 532 to periodically inject pulse air flow into the vertical material pipe 51, achieving a double effect, one is to form an air curtain under the continuous blowing of low air pressure, reducing the adhesion of material to the pipe wall; two is to produce a shock wave in the high-pressure pulse moment, which can shake off the accumulated powder, and complement the mechanical cleaning of the scraping roller 544.

[0044] The working process of the graphite electrode production feeding device is as follows: I. Initialization and setting: first, set the target feeding rate and feeding amount through the operation display system 2, then initialize the system, and the bearing system starts to monitor the total weight of the entire device including the material box 3, the horizontal feeding system 4 and the vertical feeding system 5 in real time at a high frequency (such as 10 times per second).

[0045] II. Horizontal feeding: the reducer assembly 41 starts to drive two spiral rollers 43 with opposite spiral directions to rotate in opposite directions in the horizontal material pipe 42, stably pushing the carbon powder mixture at the bottom of the material box 3 to the vertical feeding system 5 at the end; at the same time, the other output end of the reducer assembly 41 drives the stirrer 44 to continuously stir in the material box 3 at a low speed, effectively preventing the carbon powder mixture from adhering to the pipe wall and ensuring uniform feeding.

[0046] III. Vertical conveying and coordinated anti-blocking: after the material enters the vertical material pipe 51 from the horizontal material pipe 42, it enters the precision control conveying stage. This stage works cooperatively through three mechanisms to ensure precision: active unblocking: the reduction motor 531 is started to drive the spiral roller 533 to continuously rotate, providing a downward core conveying force for the material to prevent blockage of the material in the vertical material pipe 51.

[0047] Dynamic scraping cleaning: The geared motor 531 simultaneously drives the limit disc 534 to rotate, and the scraper roller 544 mounted on it revolves accordingly; since the external gear 545 on the shaft 543 connected to the scraper roller 544 meshes with the internal gear ring 546 fixed on the wall of the vertical material tube 51, the scraper roller 544 rotates on its own axis while revolving, efficiently scraping the inner wall of the vertical material tube 51 to remove the attached material; when the accumulated material is too thick, the scraper roller 544 will be compressed by the pressure and will compress the limit spring 542 and move away from the center to avoid jamming, thus achieving layered and gradual scraping.

[0048] Airflow pulse disturbance protection: Air pump 66 continuously inflates the lower partition of airflow box 61, and micro motor 63 intermittently drives stepped frustum sleeve 64 to rotate, causing telescopic plug 65 to periodically block and open air holes, generating pulsed airflow. This airflow forms an air curtain to reduce material adhesion on the one hand, and shakes off slightly accumulated material with shock waves on the other hand, complementing mechanical scraping.

[0049] IV. Closed-loop control and precise material discharge: The total weight change data of the system monitored in real time by the load-bearing system is transmitted to the operation display system 2. The operation display system 2 compares the actual feeding rate with the preset target and dynamically adjusts the feeding speed of the horizontal feeding system 4 and the vertical feeding system 5 to form a precise closed-loop control. Ultimately, it ensures that the carbon powder mixture is output from the lower end of the vertical feed tube 51 with extremely high precision and stability, meeting the strict requirements of graphite electrode production.

[0050] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0051] Furthermore, the terms "first," "second," "number one," and "number two" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," "number one," or "number two" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0052] In this application, unless otherwise clearly indicated and limited, the terms "mounting", "connection", "connecting", "fixing" and the like should be interpreted broadly, for example, can be fixed connection, can also be detachable connection, or integrated; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship of two elements, unless otherwise clearly limited. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0053] The embodiments of the specific implementation are the preferred embodiments of the application, not to limit the protection scope of the application, therefore; all equivalent changes made according to the structure, shape, principle of the application should be covered within the protection scope of the application.

Claims

1. A graphite electrode production feeding device characterized by comprising: The vertical feeding system comprises a vertical feeding pipe connected to the end of the horizontal feeding pipe, and a longitudinal discharging unit is arranged at the middle position of the vertical feeding pipe. The longitudinal discharging unit comprises a speed reducer, and the output shaft of the speed reducer is connected with an airflow pulse assembly. The airflow pulse assembly comprises an airflow box, and a partition plate is arranged at the middle portion of the airflow box. The inside of the airflow box is divided into two layers by the partition plate, and the lower end cover of the airflow box is detachably arranged. A micro motor is arranged on the upper layer of the airflow box through a motor base. The output shaft of the micro motor is connected with a stepped circular cone sleeve. The outer wall of the stepped circular cone sleeve is movably arranged with an expansion plug through a spring. The lower end cover of the airflow box is uniformly provided with air holes for discharging air. The air holes are matched with the expansion plug. A gas pump is further arranged in the upper layer of the airflow box. The output end of the gas pump is located in the lower layer of the airflow box. The micro motor is intermittently driven to rotate the stepped circular cone sleeve intermittently. The expansion plug is periodically blocked and opened to the air holes through the intermittent rotation of the stepped circular cone sleeve. The double airflow blowing effects of air curtain and shock wave are realized. The output shaft of the speed reducer is connected with a limiting disc rotatably arranged in the vertical feeding pipe. The lower end surface of the limiting disc is uniformly provided with a plurality of strip-shaped grooves along the radial direction. The strip-shaped grooves are internally provided with limiting rods. The inner wall of the vertical feeding pipe is uniformly provided with wall-adhesion scraping units. The wall-adhesion scraping units are matched with the longitudinal discharging unit. The wall-adhesion scraping unit comprises a sliding seat slidably arranged in the strip-shaped groove. The sliding seat is movably sleeved on the outer wall of the limiting rod. A limiting spring is sleeved on the outer wall of the limiting rod. The lower end of the sliding seat is rotatably provided with a shaft rod. The lower end of the shaft rod is provided with a scraping roller.

2. A graphite electrode production feeding apparatus according to claim 1, characterized by: The horizontal feeding system comprises a reducer assembly, the output end of the reducer assembly is connected with a horizontal material pipe, the horizontal material pipe penetrates the lower end of the material box, a material port is arranged on the outer wall of the upper end of the material box, two spiral material rollers with opposite spiral directions are arranged in the horizontal material pipe, and the spiral material rollers are connected with the output end of the reducer assembly.

3. A graphite electrode production feeding apparatus according to claim 2, characterized in that: A stirrer is further rotatably arranged in the material box, and the stirrer is connected with another output end of the reducer assembly.

4. A graphite electrode production feeding apparatus according to claim 2, characterized by: The upper end of the vertical material pipe is provided with an end cover.

5. A graphite electrode production material feeding apparatus according to claim 4, characterized in that: The reducer motor is installed on the end cover through a motor base, and the lower end of the airflow pulse assembly is connected with a spiral roller.

6. A graphite electrode production material feeding apparatus according to claim 5, characterized by: The outer wall of the middle part of the shaft rod is provided with an external gear, and an internal gear ring is further arranged in the vertical material pipe below the limiting disc, and the external gear is engaged with the internal gear ring.

7. A graphite electrode production material feeding apparatus according to claim 6, characterized in that: The scraping roller is composed of an inner core and a scraping rubber sleeve arranged on the outer wall of the inner core, and the outer wall of the scraping rubber sleeve is uniformly provided with inclined rubber strip convex structures along the circumferential direction thereof.

8. A graphite electrode production material feeding apparatus according to claim 4, characterized by: The inner wall of the vertical material pipe is provided with wear-resistant lining pieces.

Images