Prebaked anode paste plasticity control device

Abstract

The utility model relates to a prebaked anode paste plasticity control device, and belongs to the technical field of prebaked anode production. Comprising a rotating shaft and a rotating knife driving motor driving the rotating shaft to rotate, a through hole allowing the rotating shaft to penetrate through is formed in the side wall of the kneading pot, an annular sealing sleeve matched with the rotating shaft to achieve sealing is installed on the through hole, and a cutting knife is installed on the rotating shaft located in the kneading pot. The other end of the rotating shaft is electrically connected with a power output shaft of the rotating cutter driving motor through a coupler, the propelling mechanism drives the rotating shaft to move in the length direction of the rotating shaft, the rotating speed sensor is installed on the outer wall of the mixing and kneading pot, and the rotating speed sensor is matched with a rotating speed induction piece on the rotating shaft in an induction mode. The rotating speed sensor is used for detecting rotating speed of the rotating shaft. The utility model has the following beneficial effects: through visual data, the production efficiency and the product quality are improved, the design is ingenious, the operation is convenient, the control is accurate, the production efficiency is high, the cost is low, and the like.

Description

TECHNICAL FIELD

[0001] The utility model relates to a prebaked anode paste plasticity control device belongs to prebaked anode production technical field. BACKGROUND

[0002] Mixing kneading is the key step in the production of prebaked anode, directly affects the green body quality in the forming process and the performance index of carbon anode product after baking. The quality of mixing kneading is ultimately reflected by the plasticity of the paste, and there are many factors affecting the plasticity of the paste. For example, the quality of raw material petroleum coke, calcination conditions, binder performance and dosage, mixing kneading temperature, mixing kneading time, etc. The mixing ratio of each particle size material of calcined coke has great influence on the uniformity of mixing kneading, and the roughness and porosity of the mixed dry material also directly affect the wettability of the binder, which in turn affects the plasticity of the paste. If the amount of binder is too small, the plasticity of the paste will be poor, and if the amount of binder is too large, the plasticity will be poor, and the product will be deformed during the baking process. If the mixing kneading temperature is too low, the viscosity of asphalt is large, the penetration effect is not good, the mixing kneading machine is laborious, the mixing is not uniform, and the plasticity of the paste is poor. If the mixing kneading temperature is too high, the asphalt will decompose, volatilize and oxidize, and the amount of loss will be large, which will cause the paste to appear "aging" phenomenon and reduce the plasticity of the paste. If the mixing kneading time is too short, the mixing kneading will be uneven, and if the mixing kneading time is too long, the asphalt or other binders will be severely oxidized, which will reduce the plasticity and uniformity of the paste. If the plasticity of the paste is poor, it will be difficult to vibrate during the vibration forming, the anode height will be out of standard, and the green anode volume density will be low, which will ultimately lead to poor quality of the prebaked anode after baking, and further increase the oxidation and slagging of the anode in the aluminum electrolysis cell. Therefore, controlling the plasticity of the paste is very important for the comprehensive indicators such as the volume density of the prebaked anode.

[0003] The current technology does not consider comprehensively, and has the following disadvantages: in actual production, the plasticity of the paste can only be observed by the naked eye and felt by manual kneading at the discharge port, once the plasticity of the paste is poor, it is difficult to obtain the best green anode quality during the vibration forming process, and it is difficult to remedy in the subsequent process, the current way of relying solely on manual feeling cannot meet the production needs, which is easy to cause more forming waste products, and cannot quickly and effectively control the production process. Therefore, how to control the best plasticity of the paste is a problem that needs to be improved in the green anode processing link.

[0004] To solve one of the above problems, a prebaked anode paste plasticity control device is urgently needed. UTILITY MODEL CONTENTS

[0005] According to the above deficiencies in the prior art, the technical problem to be solved by the utility model is how to realize the detection of the rotating shaft speed to judge the plasticity of the paste and adjust it in time, and to provide a prebaked anode paste plasticity control device to solve the technical problems of inaccurate asphalt addition and paste plasticity control, low production efficiency and other technical problems in the production process of the existing mixing kettle.

[0006] The utility model discloses a prebaked anode paste plasticity control device, including rotating shaft and drive rotary knife drive motor that rotates the rotating shaft, its characterized in that: the lateral wall of mixing and kneading pot is provided with the through hole for rotating shaft's penetration, install annular seal cover with rotating shaft cooperation and realize sealing on the through hole, install cutting knife on the rotating shaft in the mixing and kneading pot, the other end of rotating shaft passes through the coupling and the power output shaft electric connection of rotary knife drive motor, still include the propulsion mechanism that drives rotating shaft to move along its length direction, install the rotating speed sensor on the mixing and kneading pot outer wall, rotating speed sensor and rotating speed inductive sheet induction cooperation on the rotating shaft are used for detecting the rotating speed of rotating shaft.

[0007] When the mixing and kneading process is finished, the cutting knife can be moved from the edge of the mixing and kneading pot to the center position of the mixing and kneading pot by the propulsion mechanism, the cutting knife enters the paste in the mixing and kneading pot, and the position is 40cm away from the pot wall of the mixing and kneading pot, the rotary knife drive motor is started, the rotary knife drive motor drives the cutting knife to rotate by the rotating shaft, and the rotating speed of the rotating shaft is detected by the cooperation of the rotating speed sensor and the rotating speed inductive sheet. After one detection cycle is completed, the rotary knife is driven to the pot wall position by the propulsion mechanism.

[0008] The higher the rotating speed of the rotating shaft is detected, the smaller the paste resistance is, which indicates that the paste is dry, and the plasticity is poor, so the binder should be supplemented in time. The lower the rotating speed of the rotating shaft is detected, the poorer the paste fluidity is, the more the asphalt content is, the paste oil is bright and sticky, the plasticity is poor, and the amount of the binder should be appropriately reduced.

[0009] The present application can determine whether the amount of binder needs to be adjusted to obtain the best paste plasticity, solve the technical problems of inaccurate asphalt addition and paste plasticity control in the production process of the mixing and kneading pot, low production efficiency, determine the paste plasticity and adjust it in time, and avoid producing unqualified paste to cause the waste of the anode.

[0010] The problems of inaccurate paste temperature control, uneven mixing and kneading quality, and inaccurate asphalt addition are solved.

[0011] Preferably, the mechanical power output by the rotary knife drive motor is constant.

[0012] Preferably, the cutting knife is provided with multiple groups, and the adjacent two groups are arranged around the center line of the rotating shaft with equal angles.

[0013] Preferably, the cutting knife is provided with two groups, and each group is provided with a length of 15±2cm.

[0014] Preferably, the rotation speed sensor is a magneto- electric rotation speed sensor, the rotation speed sensing sheet is a gear, and the rotation speed sensor is suitable for rotation speed detection of various magnetic conductive materials such as gears, impellers and perforated discs through a non-contact design, and the rotation speed sensor converts mechanical movement into an electric signal to ensure the accuracy of measurement.

[0015] Preferably, the advancing mechanism comprises a slide rail mounting base mounted on the outer wall of the mixing and kneading pot stirrer, two groups of slide rails are mounted at intervals along the length direction of the slide rail mounting base, the rotary knife driving motor is mounted on a slide base, the lower surface of the slide base is provided with a sliding block matched with the slide rail for sliding, one end of the slide rail mounting base is provided with a servo motor, a lead screw is arranged in the inner cavity of the slide rail mounting base and is power-connected with the servo motor, a lead screw nut is threadedly connected with the lead screw, and the lead screw nut is fixedly connected with the slide base.

[0016] Preferably, the side wall of the mixing and kneading pot is provided with an electronic temperature detector, the electronic temperature detector comprises a temperature sensor, the electronic temperature detector and the rotation speed sensor are electrically connected with the signal input end of a controller, the signal output end of the controller is connected with a display, the controller receives the temperature signal detected by the electronic temperature detector and the rotation speed signal detected by the rotation speed sensor, and the display visually displays the temperature and the rotation speed.

[0017] Preferably, the cutting knife is triangular in cross section.

[0018] Preferably, the sealing sleeve is mounted at a position 2 / 3 away from the bottom of the pot.

[0019] Compared with the prior art, the prebaked anode paste plasticity control device has the following beneficial effects:

[0020] The prebaked anode paste plasticity control device detects the rotation speed of the rotating shaft, can determine whether the amount of binder needs to be adjusted, so as to obtain the best paste plasticity.

[0021] The prebaked anode paste plasticity control device solves the technical problems of inaccurate asphalt addition amount and paste plasticity control, low production efficiency and the like in the production process of the existing mixing and kneading pot, judges the paste plasticity and adjusts in time, avoids the generation of unqualified paste to cause the waste of green anode, and solves the problems of inaccurate paste temperature control, uneven mixing and kneading quality and inaccurate asphalt addition amount.

[0022] The prebaked anode paste plasticity control device of this utility model improves production efficiency and product quality through visualized data, and has the advantages of ingenious design, convenient operation, precise control, high production efficiency and low cost. Attached Figure Description

[0023] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0024] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ;

[0025] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ;

[0026] Figure 3 This is a schematic diagram of the propulsion mechanism of this utility model;

[0027] In the diagram: 1. Rotary blade drive motor; 2. Cutting blade; 3. Rotary shaft; 4. Controller; 5. Propulsion mechanism; 6. Mixing pot; 7. Electronic thermometer; 8. Mixing pot stirrer; 9. Sealing sleeve; 10. Speed ​​sensor; 11. Speed ​​sensing plate; 12. Slide seat; 13. Slider; 14. Slide rail; 15. Lead screw; 16. Servo motor; 17. Slide rail mounting base. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings:

[0029] The present invention will be further described below through specific embodiments, but it is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

[0030] Example 1, as Figures 1-2As shown, the plasticity control device for prebaked anode paste includes a rotating shaft 3 and a rotary cutter drive motor 1 that drives the rotating shaft 3 to rotate. A through hole for the rotating shaft 3 to pass through is provided on the side wall of the kneading pot 6. An annular sealing sleeve 9 that cooperates with the rotating shaft 3 to achieve a seal is installed on the through hole. A cutting blade 2 is installed on the rotating shaft 3 inside the kneading pot 6. The other end of the rotating shaft 3 is electrically connected to the power output shaft of the rotary cutter drive motor 1 through a coupling. The device also includes a propulsion mechanism 5 that drives the rotating shaft 3 to move along its length direction and a speed sensor 10 installed on the outer wall of the kneading pot 6. The speed sensor 10 cooperates with the speed sensing plate 11 on the rotating shaft 3 to detect the speed of the rotating shaft 3.

[0031] After the kneading process is completed, the propulsion mechanism 5 drives the cutting blade 2 from the edge of the kneading pot 6 towards its center. The cutting blade 2 enters the paste inside the kneading pot 6, and its position is 40cm away from the pot wall. The rotary blade drive motor 1 is then activated. The rotary blade drive motor 1 drives the cutting blade 2 to rotate via the rotating shaft 3, and the rotation speed is detected by the speed sensor 10 and the speed sensing plate 11. After one detection cycle is completed, the propulsion mechanism 5 drives the rotary blade back to its position on the pot wall.

[0032] A higher cutter speed results in lower paste resistance, indicating a dry and loose paste with poor plasticity, requiring timely replenishment of binder. Conversely, a lower cutter speed leads to poor paste flowability, higher asphalt content, a glossy and viscous paste, and poor plasticity, necessitating a reduction in binder dosage. This system can determine whether binder dosage needs adjustment to achieve optimal paste plasticity, addressing technical issues such as inaccurate control of asphalt addition and paste plasticity in existing kneading pot production processes, resulting in low production efficiency. It assesses paste plasticity and allows for timely adjustments, preventing the production of substandard paste and the resulting waste anodes.

[0033] Example 2, as Figures 1-2 As shown, the plasticity control device for prebaked anode paste includes a rotating shaft 3 and a rotary cutter drive motor 1 that drives the rotating shaft 3 to rotate. A through hole for the rotating shaft 3 to pass through is provided on the side wall of the kneading pot 6. An annular sealing sleeve 9 that cooperates with the rotating shaft 3 to achieve a seal is installed on the through hole. A cutting blade 2 is installed on the rotating shaft 3 inside the kneading pot 6. The other end of the rotating shaft 3 is electrically connected to the power output shaft of the rotary cutter drive motor 1 through a coupling. The device also includes a propulsion mechanism 5 that drives the rotating shaft 3 to move along its length direction and a speed sensor 10 installed on the outer wall of the kneading pot 6. The speed sensor 10 cooperates with the speed sensing plate 11 on the rotating shaft 3 to detect the speed of the rotating shaft 3.

[0034] It solved problems such as inaccurate control of paste temperature, uneven mixing quality, and inaccurate addition of asphalt.

[0035] Further, the mechanical power output by the rotary knife driving motor 1 is constant. The power of the motor can be calculated by the formula: power = torque x rotating speed / 9550. The product of torque and rotating speed represents the amount of work energy conversion per unit time, and dividing by the constant 9550 is to obtain the corresponding power unit.

[0036] Further, the cutting knife 2 is provided in multiple groups, and the included angle between adjacent two groups is equal.

[0037] Further, the cutting knife 2 is provided in two groups, and the length of each group is set to 15±2 cm.

[0038] Further, the rotating speed sensor 10 is a magneto- electric rotating speed sensor, and the rotating speed sensing sheet 11 is a gear. Through a non-contact design, it is suitable for rotating speed detection of various magnetic conductive materials such as gears, impellers and perforated discs. It converts mechanical motion into an electrical signal, ensuring the accuracy of measurement.

[0039] Further, with reference to Figure 3 , the advancing mechanism 5 includes a slide rail mounting base 17 mounted on the outer wall of the mixing pot stirrer 8, two groups of slide rails 14 are installed at intervals along the length direction of the slide rail mounting base 17, the rotary knife driving motor 1 is installed on a sliding base 12, the lower surface of the sliding base 12 is provided with a sliding block 13 matched with the slide rail 14 for sliding, one end of the slide rail mounting base 17 is provided with a servo motor 16, the inner cavity of the slide rail mounting base 17 is provided with a lead screw 15 connected with the servo motor 16, a lead screw nut is threadedly connected on the lead screw 15, and the lead screw nut is fixedly connected with the sliding base 12. The two ends of the lead screw 15 are respectively rotatably installed in the inner cavity of the slide rail mounting base 17 through corresponding bearing assemblies. The servo motor 16 drives the lead screw 15 to rotate forward or reverse, and under the cooperation of the lead screw and the lead screw nut and the sliding block 13 and the slide rail 14, the rotary knife driving motor 1 is driven to reciprocate along the length direction of the slide rail mounting base 17.

[0040] Further, the side wall of the mixing pot 6 is provided with an electronic temperature detector 7, which includes a temperature sensor. The electronic temperature detector 7 and the rotating speed sensor 10 are electrically connected with the signal input end of the controller 4, the signal output end of the controller 4 is connected with a display, the controller 4 receives the temperature signal detected by the electronic temperature detector 7 and the rotating speed signal detected by the rotating speed sensor 10, and the display visually displays the temperature and rotating speed.

[0041] The controller 4 is a PLC controller.

[0042] In the actual application of the company, if the display rotation speed is between 20-30r / min, the smaller the paste resistance is, the paste is dry, the plasticity is poor, and the binder should be supplemented in time. If the display rotation speed is between 0-10 r / min, the asphalt content is large, the paste is bright and sticky, the paste flowability is poor, the plasticity is poor, and the binder should be appropriately reduced. If the display rotation speed is between 10-20 r / min, the paste is wet and soft, the flowability is suitable, the asphalt content is in the optimal range, the plasticity is just right, and the best green anode volume density and quality can be obtained.

[0043] After the kneading pot stirrer 8 is worked, the temperature is started, and the computer is transmitted, and the PLC controller is comprehensively calculated, and the paste temperature control range is 150-170 DEG C.

[0044] The utility model relates to a kind of in the embodiment, the modification of prior art in the specific embodiment is in hardware part, and the computer program involved simultaneously belongs to the simple program of the function that can be easily realized by the existing computer program development platform and the programming method familiar to those skilled in the art of personnel.This paper, temperature sensor, speed sensor and controller are only a simple use to its function, and do not involve the improvement of method program etc.

[0045] Example 3, different from the embodiment, the cross section of the cutting knife 2 is triangular or cylindrical or long strip.

[0046] Further, the sealing sleeve 9 is installed at 2 / 3 distance from the bottom of the paste 9, to avoid interference with the kneading pot stirrer.

[0047] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principle of the application, and various changes and improvements can be made without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the claimed utility model. The scope of protection of the utility model is defined by the attached claims and their equivalents.

[0048] The details of the application are not described, which are known to those skilled in the art.

Claims

1. A plasticity control device for prebaked anode paste, comprising a rotating shaft and a rotary cutter drive motor for driving the rotating shaft to rotate, characterized in that: The side wall of the kneading pot has a through hole for the rotating shaft to pass through. An annular sealing sleeve that cooperates with the rotating shaft to achieve a seal is installed in the through hole. A cutting blade is installed on the rotating shaft inside the kneading pot. The other end of the rotating shaft is electrically connected to the power output shaft of the rotating blade drive motor through a coupling. The pot also includes a propulsion mechanism that drives the rotating shaft to move along its length and a speed sensor installed on the outer wall of the kneading pot. The speed sensor cooperates with the speed sensing plate on the rotating shaft to detect the speed of the rotating shaft.

2. The prebaked anode paste plasticity control device according to claim 1, characterized in that, The mechanical power output of the rotary cutter drive motor remains unchanged.

3. The prebaked anode paste plasticity control device according to claim 2, characterized in that, The cutting blade is provided in multiple sets, and the multiple sets of cutting blades are arranged around the center line of the rotation axis with the included angle between adjacent sets being equal.

4. The prebaked anode paste plasticity control device according to claim 3, characterized in that, The cutting blade is provided in two sets, and the length of each set is set to 15±2cm.

5. The prebaked anode paste plasticity control device according to claim 4, characterized in that, The speed sensor is a magnetoelectric speed sensor.

6. The prebaked anode paste plasticity control device according to claim 5, characterized in that, The propulsion mechanism includes a slide rail mounting base installed on the outer wall of the mixing pot agitator. Two sets of slide rails are installed at intervals along the length of the slide rail mounting base. The rotary cutter drive motor is mounted on the slide base. A slider that slides in cooperation with the slide rail is provided on the lower surface of the slide base. A servo motor is installed at one end of the slide rail mounting base. A lead screw that is powered by the servo motor is provided in the inner cavity of the slide rail mounting base. A lead screw nut is threaded onto the lead screw. The lead screw nut is fixedly connected to the slide base.

7. The prebaked anode paste plasticity control device according to claim 6, characterized in that, An electronic thermometer is installed on the side wall of the mixing pot. The electronic thermometer includes a temperature sensor. Both the electronic thermometer and the speed sensor are electrically connected to the signal input terminal of the controller. The signal output terminal of the controller is connected to a display. The controller receives the temperature signal detected by the electronic thermometer and the speed signal detected by the speed sensor. The display provides a visual display of the temperature and speed.

8. The prebaked anode paste plasticity control device according to claim 7, characterized in that, The sealing sleeve is installed at a distance of 2 / 3 from the bottom of the pot containing the paste.

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