A modified device for increasing the specific surface area of supercapacitor carbon

Abstract

The utility model provides a kind of modified equipment capable of improving supercapacitor carbon specific surface area, it is related to supercapacitor carbon preparation technical field, the continuous production system of "ultrasonic intensification mixing-condensation atomization granulation-gradient heating activation" is constructed in the present application, solve the technical problems such as uneven mixing, low granulation precision and limited specific surface area promotion in traditional process, realize the efficient preparation of high-performance supercapacitor carbon.

Description

Technical Field

[0001] This utility model relates to the field of supercapacitor carbon preparation technology, and more specifically, to a modification device that can improve the specific surface area of ​​supercapacitor carbon. Background Technology

[0002] As the core electrode material of supercapacitors, the specific surface area, pore size distribution, and surface functional group characteristics of supercapacitor carbon directly determine the energy density, power density, and cycle life of the supercapacitor. Studies have shown that optimal electrochemical performance can be achieved when the specific surface area of ​​supercapacitor carbon is in the range of 2000-3000 m² / g and the pore size distribution is concentrated in the range of 2-5 nm. In the preparation process of supercapacitor carbon, the uniformity of raw material mixing, the control of granulation morphology, and the activation process parameters are key factors affecting the specific surface area of ​​the final product.

[0003] Currently, traditional supercapacitor carbon modification technology faces the following technical bottlenecks: First, in the raw material mixing stage, when using a conventional single agitator to process a high-viscosity resin and high-temperature asphalt system, the material viscosity is as high as 5000-10000 mPa·s, which easily leads to local agglomeration and thus poor mixing uniformity. Secondly, during the granulation process, the atomized particle size deviation rate of traditional spray drying equipment exceeds ±20%, and the particle morphology irregularity rate reaches more than 30%, which seriously affects the mass transfer efficiency of subsequent activation. Finally, the activation stage often uses heating at a single temperature range, which results in insufficient reaction between the activator and the material, limiting the increase in specific surface area. In addition, traditional processes require repeated temperature control through "mixing-cooling-reheating," with a production cycle of 8-12 hours, which is difficult to meet the needs of industrial production. Utility Model Content

[0004] The purpose of this invention is to solve the problems mentioned in the background art and to propose a modification device that can improve the carbon specific surface area of ​​supercapacitors.

[0005] The technical solution adopted by this utility model to solve its technical problem is: A modification device for increasing the carbon specific surface area of ​​supercapacitors includes a double-jacketed mixing tank. The double-jacketed mixing tank includes an inlet pipe and an outlet pipe, and a valve is installed on the outlet pipe. Heat transfer oil flows inside the jacket of the double-jacketed mixing tank. The drive motor is mounted on the double-layer jacketed mixing tank, and the drive motor is connected to a triple stirring assembly that is coaxially connected from top to bottom along the height direction inside the double-layer jacketed mixing tank. The ultrasonic generator is fixed at the bottom of the double-jacketed mixing tank; The pipeline is connected to the discharge pipe and is equipped with a heating element inside the pipeline; The condensation granulation chamber is located on one side of the double-jacketed mixing tank, and the condensation granulation chamber is equipped with an inclined guide platform and a dual-fluid atomizing nozzle at the end of the connecting pipeline. The cold air conveying and detection component is connected to the interior of the condensing granulation chamber, and the condensing granulation chamber is provided with a discharge port; The feed hopper of the screw conveyor is connected to the discharge port, and the discharge hopper of the screw conveyor is connected to the inlet of the activation furnace. An activator conveying assembly is installed in the area of ​​the activation furnace near the inlet. The activation furnace is equipped with a spiral conveyor assembly and the tail end of the activation furnace is open; Three electromagnetic coils, each independently electrically connected to the PLC controller, are sequentially installed along the length of the activation furnace. The heat insulation shell is located outside the electromagnetic coil, and a first temperature sensor corresponding to the electromagnetic coil and attached to the outer wall of the activation furnace is installed inside the heat insulation shell.

[0006] Furthermore, the triple mixing assembly includes an anchor-type impeller, an inclined blade turbine impeller, and a ribbon-type impeller. The motor shaft of the drive motor is connected to the connecting shaft of the anchor-type stirring paddle; The connecting shaft of the inclined blade turbine propeller is connected to the connecting shaft of the anchor-type agitator propeller via a first coupling. The connecting shaft of the ribbon agitator and the connecting shaft of the inclined blade turbine are connected by a second coupling.

[0007] Furthermore, the cold air delivery detection component includes a cooler, a delivery pipe, an exhaust pipe, an automatic pressure relief valve, a second temperature sensor, and a pressure sensor. The air cooler is fixed on the condensing granulation chamber and is connected to the interior of the condensing granulation chamber through a delivery pipe; The exhaust pipe is connected to the interior of the condensation granulation chamber and is equipped with an automatic pressure relief valve. The second temperature sensor and pressure sensor are respectively installed in the condensation granulation chamber.

[0008] Furthermore, the spiral conveyor assembly includes a servo motor, a reducer, a spiral rod, and a deflector plate. The reducer is set at the initial end of the activation furnace. The output end of the reducer is connected to a screw rod that is inside the activation furnace, adapted to the inner wall of the activation furnace and with a gap. The input end of the reducer is connected to a servo motor. Several deflector plates are inclinedly arranged on the inner wall of the activation furnace and are distributed at intervals with the spiral blades on the spiral rod.

[0009] Furthermore, the activator delivery assembly includes an air inlet pipe, an activator gas source, an air pump, and a flow valve. The air inlet pipe connects to the interior of the activation furnace and is located near the inlet area; The output end of the air pump connected to the activator gas source is connected to the air inlet pipe, and a flow valve is installed on the air inlet pipe.

[0010] Furthermore, two spaced spiral pushers are provided inside the feed pipe.

[0011] Furthermore, the double-jacketed mixing tank is also equipped with an additive metering feed pipe, which is connected to a metering pump, and the metering pump is connected to an additive tank.

[0012] Furthermore, an insulation layer is provided on the outside of the pipeline.

[0013] Compared with the prior art, the beneficial effects of this utility model are: (1) The mixing homogenization of this application is high. Through the synergistic effect of multi-dimensional stirring and ultrasound, a composite action field of macro-convection-micro-shear is formed, and the material mixing uniformity is improved to more than 95%, which effectively solves the mixing problem of high viscosity system and provides a high-quality raw material basis for subsequent granulation and activation. (2) The granulation precision and morphology of this application are controllable. Precision atomization and gradient condensation technology are used to achieve precise control of particle size and narrow distribution control (span ≤ 1.2), particle sphericity ≥ 90%, significantly improve product tap density (≥ 0.6 g / cm3), and improve electrode forming performance; (3) This application adopts a three-stage gradient activation process with precise control of activator to make the specific surface area of ​​supercapacitor carbon stably reach 2200-2500m2 / g, and the pore size distribution is concentrated in the optimal range of 2-5nm, which is more than 30% higher than the traditional method, and significantly enhances the electrochemical performance of supercapacitor. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 for Figure 1 Enlarged view of section A (labeled A); Figure 3 for Figure 1 Enlarged view of section B (labeled B); Figure label: 1. Double-jacketed mixing tank; 101. Feed pipe; 102. Discharge pipe; 103. Valve; 104. Additive metering feed pipe; 11. Drive motor; 12. Triple mixing assembly; 121. Anchor-type agitator; 122. Inclined blade turbine propeller; 123. Ribbon-type agitator; 13. Ultrasonic generator; 14. Jacket; 15. Piping; 16. Heating element; 2. Condensation granulation chamber; 21. Dual-fluid atomizing nozzle; 22. Guide tube 23. Material platform; 231. Cold air conveying detection assembly; 232. Cold air blower; 233. Conveying pipe; 234. Exhaust pipe; 235. Automatic pressure relief valve; 236. Second temperature sensor; 237. Pressure sensor; 24. Discharge port; 3. Screw conveyor; 4. Activation furnace; 41. Screw conveying assembly; 42. Electromagnetic coil; 43. Insulation shell; 44. First temperature sensor; 45. Directional plate; 51. Air inlet pipe; 52. Flow valve. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model. The present utility model will be further described with reference to the accompanying drawings and embodiments: like Figures 1 to 3 As shown, a modification device for increasing the specific surface area of ​​carbon in supercapacitors includes a double-jacketed mixing tank 1. The double-jacketed mixing tank 1 includes an inlet pipe 101 and an outlet pipe 102, and a valve 103 is provided on the outlet pipe 102. Heat transfer oil flows inside the jacket 14 of the double-jacketed mixing tank 1 (this design is an existing technology and will not be improved). The double-jacketed mixing tank 1 achieves temperature regulation by circulating heat transfer oil within the jacket 14. Its core principle is as follows: I. Temperature Regulation Principle (1) Heat conduction mechanism When the heat transfer oil circulates within the jacket, it indirectly exchanges heat with the material through the tank wall. Due to its high heat capacity and low viscosity, the heat transfer oil can efficiently transfer heat. When heating is required, the high-temperature heat transfer oil (up to 350℃) transfers heat to the material inside the tank; during cooling, it absorbs heat from the material through low-temperature oil circulation.

[0016] (2) Dynamic temperature control capability When using an external circulation system, the heat transfer oil forms a closed-loop flow between the heater and the jacket, and precise temperature control is achieved by adjusting the oil temperature (accuracy ±1℃) and flow rate (3-15L / min). For example, the oil temperature can be rapidly increased during the heating phase, while the flow rate is adjusted to maintain stability during the constant temperature phase using a variable frequency pump. The drive motor 11 is mounted on the double-layer jacketed mixing tank 1, and the drive motor 11 is connected to a triple stirring assembly 12 that is coaxially connected from top to bottom along the height direction inside the double-layer jacketed mixing tank 1. The ultrasonic generator 13 is fixed at the bottom of the double-jacketed mixing tank 1; Pipeline 15 is connected to discharge pipe 102 and a heating element 16 (specifically, heating element 16 is an electric heating plate) is installed inside pipeline 15. The condensation granulation chamber 2 is located on one side of the double-layer jacketed mixing tank 1, and the condensation granulation chamber 2 is equipped with an inclined guide platform 22 and a dual-fluid atomizing nozzle 21 at the end of the connecting pipeline 15. The structure of the dual-fluid atomizing nozzle 21 (specifically, a pneumatic dual-fluid atomizing nozzle 21 is adopted, which is existing technology and will not be improved) is as follows: 1. Nozzle body Made of stainless steel, it has high wear resistance; It contains a mixing chamber (a region where gas and liquid meet); 2. Fluid Channel System Inlet pipe: Compressed air is introduced into the mixing chamber through the air inlet, and the airflow velocity can reach 300m / s; Inlet pipe: Connects to the inlet hole to transport liquid, with a flow rate range of 2-80L / min; 3. Atomization control mechanism Pressure valve: Adjusts the pressure inside the mixing chamber to control the atomization effect; Spray nozzle: outputs atomized particles with a particle size controllable in the range of 3-186μm.

[0017] The cold air conveying and detection component 23 is connected to the interior of the condensation granulation chamber 2, and the condensation granulation chamber 2 is provided with a discharge port 24; The feed hopper of the screw conveyor 3 is connected to the discharge port 24, and the discharge hopper of the screw conveyor 3 is connected to the inlet of the activation furnace 4. An activator conveying component is provided in the area of ​​the activation furnace 4 near the inlet. The activation furnace 4 is equipped with a spiral conveyor assembly 41 and the tail end of the activation furnace 4 is open; Three electromagnetic coils 42, which are independently electrically connected to the PLC controller, are sequentially installed along the length of the activation furnace 4. The heat insulation shell 43 is installed on the outside of the electromagnetic coil 42, and a first temperature sensor 44 is installed inside the heat insulation shell 43, which corresponds one-to-one with the electromagnetic coil 42 and is attached to the outer wall of the activation furnace 4.

[0018] The system that controls three electromagnetic coils 42 to achieve different temperature adjustments mainly consists of the following structure, and its working principle is based on electromagnetic induction heating: 1. Core heating unit Segmented electromagnetic coil: It consists of three independent copper windings, each of which can be switched on and off independently. The power range is usually 1-5kW / group. 2. Temperature Control System Controller: Compares the setpoint with the feedback temperature in real time, and outputs a signal to adjust the coil power; Thermocouple array: Thermocouples are placed in each heating zone, with a detection accuracy of ±1℃; Solid-state relays: Response time <10ms, enabling rapid on / off control of the coil; 3. Power Module Variable frequency power supply: converts 50Hz industrial frequency electricity into 20-40kHz high frequency current; Capacitor compensation group: Improves power factor; Overcurrent protector: Dual mechanism of bimetallic strip and electronic protection.

[0019] Specific implementation of this utility model solution, such as Figures 1 to 3 As shown, the triple mixing assembly 12 includes an anchor-type mixing blade 121, an inclined blade turbine blade 122, and a ribbon-type mixing blade 123. The motor shaft of the drive motor 11 is connected to the connecting shaft of the anchor-type stirring paddle 121; The connecting shaft of the inclined blade turbine propeller 122 is connected to the connecting shaft of the anchor-type agitator 121 via a first coupling (not shown in the figure); The connecting shaft of the ribbon impeller 123 and the connecting shaft of the inclined blade turbine 122 are connected by a second coupling (not shown in the figure).

[0020] Further refinements of this utility model solution, such as... Figures 1 to 3 As shown, the cold air delivery detection component 23 includes a cold air blower 231, a delivery pipe 232, an exhaust pipe 233, an automatic pressure relief valve 234 (which is existing technology and will not be improved; its purpose is to maintain the pressure inside the condensation granulation chamber 2 within a safe range), a second temperature sensor 235, and a pressure sensor 236. The air cooler 231 is fixed on the condensation granulation chamber 2 and the air cooler 231 is connected to the interior of the condensation granulation chamber 2 through the conveying pipe 232; The exhaust pipe 233 is connected to the interior of the condensation granulation chamber 2 and an automatic pressure relief valve 234 is installed on the exhaust pipe 233. The second temperature sensor 235 and the pressure sensor 236 are respectively installed in the condensation granulation chamber 2; The structure of an automatic pressure relief valve includes: 1. Main valve The diaphragm structure is divided into upper and lower chambers: the lower chamber is the medium flow channel and the upper chamber is the control chamber, which drives the valve to open and close through the pressure difference. 2. Pilot valve (operated valve) A miniature pressure relief device, comprising a valve body, adjusting screw, spring, diaphragm, and other components, is used to sense system pressure and control the operation of the main valve. 3. Pressure regulating component Needle valve: Used to regulate and control flow in pipelines; Pressure gauge: Displays system pressure in real time.

[0021] Specific implementation of this utility model solution, such as Figures 1 to 3 As shown, the screw conveyor assembly 41 includes a servo motor, a reducer, a screw rod, and a deflector plate 45 (the servo motor, reducer, and screw rod are shown in the figure but are not labeled). The reducer is set at the initial end of the activation furnace 4. The output end of the reducer is connected to a screw rod that is inside the activation furnace 4, adapted to the inner wall of the activation furnace 4 and with a gap. The input end of the reducer is connected to a servo motor. Several deflector plates 45 are inclinedly arranged on the inner wall of the activation furnace 4 and are distributed at intervals with the spiral blades on the spiral rod.

[0022] Specific implementation of this utility model solution, such as Figures 1 to 3 As shown, the activator delivery assembly includes an air inlet pipe 51, an activator gas source, an air pump, and a flow valve 52. The air inlet pipe 51 connects to the interior of the activation furnace 4 and is close to the inlet area; The output end of the air pump connected to the activator gas source is connected to the air inlet pipe 51, and the air inlet pipe 51 is equipped with a flow valve 52 (the activator gas source and air pump are not shown in the figure).

[0023] To further improve the smoothness of feeding viscous materials, the above embodiment is further optimized by providing two spaced spiral pushers (the spiral pushers are not shown in the figure and are existing technology and are not improved) inside the feed pipe 101. The spiral pusher has the following structural components: I. Core Structure (General Adaptation) 1. Main conveyor assembly: Helical blades: They adopt a constant pitch design and are made of wear-resistant materials. The blade diameter is slightly smaller than the pushing cavity (leaving a gap of 0.5~1mm to prevent jamming). Pushing cavity: Cylindrical pipe with standard flanges at both ends, and a universal feed port (with quick-connect flange, which can be covered to switch the feeding and discharging modes) on the side of the middle of the cavity. Central shaft and seals: The shaft is fixed at both ends by bearings, and the flange interface is equipped with double seals (skeleton oil seal + O-ring) to prevent material leakage during forward and reverse conveying; 2. Drive and Control: Motor: A miniature geared motor (such as a DC stepper motor) capable of forward and reverse rotation is selected, which is connected to the central shaft through a coupling and supports clockwise / counterclockwise rotation; Fixed bracket: The motor and the pushing cavity are rigidly connected by the bracket to ensure that the drive shaft and the screw shaft are concentric and reduce vibration.

[0024] To achieve automated quantitative addition of additives, further optimizations to the above-described embodiments are possible, such as... Figure 1 As shown, the double-jacketed mixing tank 1 is also equipped with an additive metering feed pipe 104, which is connected to a metering pump, and the metering pump is connected to an additive tank (the metering pump and the additive tank are not shown in the figure).

[0025] In order to improve the insulation effect of pipeline 15 and reduce heat loss to ensure efficient material flow, the above embodiment is further optimized by providing an insulation layer (specifically, aluminum silicate fiber felt can be used) on the outside of pipeline 15.

[0026] It should be noted that the drive motor 11, ultrasonic generator 13, heating element 16, air cooler 231, second temperature sensor 235, pressure sensor 236, power source of screw conveyor 3, servo motor, electromagnetic coil 42, first temperature sensor 44 and flow valve 52 are all electrically connected to the PLC controller, which is not labeled in the figure.

[0027] The working process of this utility model: (1) Ultrasonic mixing process This application adopts a double-jacketed mixing tank 1. The jacket 14 is filled with heat transfer oil to achieve temperature control (50-150℃). The top of the mixing tank is equipped with a double spiral raw material inlet, which can separately transport high viscosity resin and high temperature asphalt raw materials. The side is equipped with an additive metering feed pipe 104 to add additives in a quantitative manner. The mixing tank is equipped with three layers of stirring paddles arranged longitudinally. The top layer is an anchor-type stirring paddle 121 (diameter to tank inner diameter ratio 0.85), the middle layer is an inclined blade turbine paddle 122 (installation angle 45°), and the bottom layer is a ribbon-type stirring paddle 123. The stirring paddles are connected to a variable frequency drive motor 11 with an adjustable speed range of 50-500 r / min. Multiple sets of ultrasonic generators 13 are evenly arranged around the bottom circumference of the mixing tank. The working frequency is 20-40kHz, and the power of a single set is 50-150W, which can realize continuous adjustment of ultrasonic power.

[0028] The ultrasonic generator 13 introduces ultrasonic energy into the material system through a special waveguide rod, and forms a three-dimensional shear field with the stirring paddle to achieve microscopic homogenization and mixing of the material. Core advantages: High degree of homogenization. Through multi-dimensional stirring and ultrasonic synergy, a composite action field of macroscopic convection and microscopic shear is formed, improving the material mixing uniformity to over 95%, effectively solving the mixing problem of high viscosity systems, and providing a high-quality raw material foundation for subsequent granulation and activation.

[0029] (2) Atomization granulation process The material temperature is maintained at 80-120℃ through the pipeline 15 and the heating element 16, and the pipeline 15 is connected to the discharge pipe 102 of the double-jacketed mixing tank 1. The pneumatic dual-fluid atomizing nozzle 21 has a manually adjustable nozzle orifice diameter within the range of 0.5-2mm. Compressed air is used as the atomizing medium, and the gas-liquid ratio can be adjusted via auxiliary flow valve 52 (range 1:5-1:20). The pneumatic dual-fluid atomizing nozzle 21 is installed at the top of the condensation granulation chamber 2. The condensation granulation chamber 2 has a cold air inlet at the top and a discharge port 24 at the bottom. A second temperature sensor 235 and a pressure sensor 236 are installed inside the condensation granulation chamber 2. The condensation temperature (5-25℃) and the chamber pressure (-5 to -1kPa) are adjusted by a PLC controller to ensure rapid condensation and formation of atomized droplets. By optimizing atomization parameters, the particle size can be precisely controlled within the range of 20μm-100μm, with a particle size distribution deviation rate ≤±5%. Core advantages: Controllable granulation precision and morphology. By adopting precise atomization and gradient condensation technology, the particle size can be accurately controlled and the distribution can be narrowed (span ≤ 1.2). The sphericity of the particles is ≥ 90%, which significantly improves the tap density of the product (≥ 0.6 g / cm3) and improves the electrode forming performance.

[0030] (3) Heating activation process The inlet of the activation furnace 4 is connected to the outlet 24 of the condensation granulation chamber 2 via a screw conveyor 3, and a three-section continuous activation furnace 4 structure is adopted. The activation furnace 4 body is divided into a preheating section (200-400℃), an activation section (650-720℃) and a heat preservation section (600-650℃) along the material conveying direction. Each section is independently equipped with an electromagnetic coil 42 and a first temperature sensor 44, with a temperature control accuracy of ±2℃. An activator gas (CO2 or water vapor) is introduced into the activation furnace 4. The gas flow rate is precisely controlled by the flow valve 52 (0.5-2L / min). The activation furnace 4 is equipped with multiple deflector plates 45 to extend the material residence time and ensure that the activation reaction is fully carried out. Core advantages: The three-stage gradient activation process, combined with precise control of the activator, enables the specific surface area of ​​the supercapacitor carbon to stably reach 2200-2500 m2 / g, with the pore size distribution concentrated in the optimal range of 2-5 nm, which is more than 30% higher than the traditional method, significantly enhancing the electrochemical performance of the supercapacitor.

[0031] (4) Control system: It adopts a PLC programmable controller, integrates sensor signals such as temperature, pressure, flow, and speed, and realizes real-time monitoring and adjustment of equipment parameters through the touch screen. It supports two modes: automatic operation and manual operation, and has data recording function.

[0032] Core advantages: The modular design of each unit of the equipment allows for flexible adjustment of production capacity (50-500kg / d) according to production needs. The control system achieves full-process automated monitoring, reducing human error and ensuring product quality stability (batch-to-batch deviation ≤5%).

[0033] General instructions for equipment operation: 1. Preparations before powering on Equipment inspection: First, check whether all connections of the equipment are secure and whether there are any blockages or leaks in the pipes. Pay special attention to checking key components such as the mixing paddle, atomizing nozzle, and heating element to ensure that they are not damaged or deformed and are functioning properly.

[0034] Raw material preparation: Weigh the required high-viscosity resin (such as phenolic resin), high-temperature asphalt, and additives (such as sodium dodecyl sulfonate) according to the formula, ensuring that the raw materials are clean, pure, and free of impurities.

[0035] Parameter settings: Set various parameters on the equipment's touch screen. These include the heating temperature of the mixing tank, stirring speed, ultrasonic intensity and time; the pipe insulation temperature, nozzle size, and compressed air pressure during atomization; and the temperatures, gas flow rates, and material residence times of each section of the activation furnace 4.

[0036] Safety inspection: Ensure the production environment is well-ventilated and that fire-fighting equipment is placed in an easily accessible location.

[0037] 2. Equipment startup and operation Ultrasonic mixing device startup: First, turn on the heating system of the mixing tank to raise the temperature inside the tank to the set value and stabilize it. Then, start the stirring motor to make the stirring paddle rotate at the set speed. Next, add the prepared raw materials and additives into the mixing tank through the feed inlet. After the materials are added, turn on the ultrasonic generator 13 and mix according to the set parameters.

[0038] The atomizing granulation device operates in tandem: After the raw materials have been mixed for the set time, the heating of the insulated pipeline 15 is turned on to maintain a stable temperature. The valve 103 at the bottom of the mixing tank is opened, allowing the mixed material to be sent to the atomizing nozzle through the pipeline 15. At the same time, the temperature and pressure control devices of the compressed air and the condensing granulation chamber 2 are activated, causing the material to turn into small droplets at the nozzle, which are then rapidly cooled into granules and collected after entering the condensing chamber.

[0039] The heating and activation device continues: After a certain amount of particles are collected in the condensation granulation chamber 2, the conveyor is started to send the particles to the activation furnace 4. At this time, the activation furnace 4 has been preheated to the set temperature. The air pump is started and the activating agent gas is allowed to enter the furnace at the set flow rate. The particles go through the three stages of preheating, activation and heat preservation in the furnace in sequence according to the set time to complete the activation treatment.

[0040] 3. Shutdown and cleaning Gradual shutdown: After all materials have been processed, first stop adding material to the mixing tank. Once all the material in the tank has been sent to the atomizing granulation device, turn off the ultrasonic and stirring motors and stop heating. Next, turn off the compressed air and condensation systems of the atomizing device. After the last batch of granules enters the activation furnace 4, turn off the screw conveyor 3. Once all the material in the activation furnace 4 has exited, turn off the gas supply and stop heating, allowing the furnace to cool down naturally.

[0041] Equipment Cleaning: After the equipment temperature has cooled down to a comfortable level, clean the mixing tank, wiping away any residual material to prevent clumping. Disassemble and clean the atomizing nozzles, ensuring the nozzle holes are clear. Clean any remaining particles and impurities from the condensation granulation chamber 2 and activation furnace 4, and check all components for damage, preparing for the next production run.

[0042] Data recording and organization: Export various production data from the control system, such as mixing temperature, stirring speed, atomization parameters, activation temperature, and product test results, organize and archive them for future production optimization.

[0043] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A modification device for increasing the specific surface area of ​​carbon in supercapacitors, characterized in that, Including a double-jacketed mixing tank (1). The double-jacketed mixing tank (1) includes a feed pipe (101) and a discharge pipe (102), and a valve (103) is provided on the discharge pipe (102). Heat transfer oil flows in the jacket (14) of the double-jacketed mixing tank (1). The drive motor (11) is mounted on the double-layer jacketed mixing tank (1), and the drive motor (11) is connected to a triple stirring assembly (12) that is coaxially connected from top to bottom along the height direction inside the double-layer jacketed mixing tank (1). An ultrasonic generator (13) is fixed at the bottom of a double-jacketed mixing tank (1); Pipeline (15) is connected to discharge pipe (102) and heating element (16) is installed inside pipeline (15); The condensation granulation chamber (2) is located on one side of the double-layer jacketed mixing tank (1), and the condensation granulation chamber (2) is equipped with an inclined guide platform (22) and a dual-fluid atomizing nozzle (21) at the end of the connecting pipeline (15). The cold air conveying detection component (23) is connected to the interior of the condensation granulation chamber (2), and the condensation granulation chamber (2) is provided with a discharge port (24). The feed hopper of the screw conveyor (3) is connected to the discharge port (24), the discharge hopper of the screw conveyor (3) is connected to the inlet of the activation furnace (4), and the activation furnace (4) is provided with an activator conveying assembly in the area near the inlet; The activation furnace (4) is equipped with a spiral conveyor assembly (41) and the tail end of the activation furnace (4) is open; Three electromagnetic coils (42) that are independently electrically connected to the PLC controller are sequentially installed along the length of the activation furnace (4); The heat insulation shell (43) is placed on the outside of the electromagnetic coil (42), and the heat insulation shell (43) is provided with a first temperature sensor (44) that corresponds one-to-one with the electromagnetic coil (42) and is attached to the outer wall of the activation furnace (4).

2. The modification equipment for increasing the specific surface area of ​​carbon in supercapacitors according to claim 1, characterized in that, The triple mixing assembly (12) includes an anchor-type mixing blade (121), an inclined blade turbine blade (122), and a ribbon-type mixing blade (123). The motor shaft of the drive motor (11) is connected to the connecting shaft of the anchor-type stirring paddle (121); The connecting shaft of the inclined blade turbine propeller (122) is connected to the connecting shaft of the anchor-type agitator (121) through a first coupling; The connecting shaft of the ribbon agitator (123) and the connecting shaft of the inclined blade turbine (122) are connected by a second coupling.

3. The modification equipment for improving the specific surface area of ​​carbon in supercapacitors according to claim 1, characterized in that, The cold air delivery detection component (23) includes a cold air blower (231), a delivery pipe (232), an exhaust pipe (233), an automatic pressure relief valve (234), a second temperature sensor (235), and a pressure sensor (236). The air cooler (231) is fixed on the condensation granulation chamber (2) and the air cooler (231) is connected to the interior of the condensation granulation chamber (2) through the conveying pipe (232); The exhaust pipe (233) is connected to the interior of the condensation granulation chamber (2) and an automatic pressure relief valve (234) is installed on the exhaust pipe (233). The second temperature sensor (235) and the pressure sensor (236) are respectively installed in the condensation granulation chamber (2).

4. The modification equipment for increasing the specific surface area of ​​carbon in supercapacitors according to claim 1, characterized in that, The spiral conveyor assembly (41) includes a servo motor, a reducer, a spiral rod, and a deflector plate (45). The reducer is set at the initial end of the activation furnace (4). The output end of the reducer is connected to a spiral rod that is inside the activation furnace (4) and is adapted to the inner wall of the activation furnace (4) with a gap. The input end of the reducer is connected to a servo motor. Several deflection plates (45) are inclinedly arranged on the inner wall of the activation furnace (4) and are distributed at intervals with the spiral blades on the spiral rod.

5. The modification equipment for increasing the specific surface area of ​​carbon in supercapacitors according to claim 1, characterized in that, The activator delivery assembly includes an air inlet pipe (51), an activator gas source, an air pump, and a flow valve (52). The air inlet pipe (51) is connected to the interior of the activation furnace (4) and is close to the inlet area; The output end of the air pump connected to the activator gas source is connected to the air inlet pipe (51), and a flow valve (52) is provided on the air inlet pipe (51).

6. The modification equipment for increasing the specific surface area of ​​carbon in supercapacitors according to claim 1, characterized in that, Two spaced spiral pushers are provided inside the feed pipe (101).

7. The modification equipment for improving the carbon specific surface area of ​​supercapacitors according to claim 1, characterized in that, The side of the double-layer jacketed mixing tank (1) is provided with an additive metering feed pipe (104), and the additive metering feed pipe (104) is connected to a metering pump, which is connected to an additive tank.

8. The modification equipment for improving the carbon specific surface area of ​​supercapacitors according to claim 1, characterized in that, An insulation layer is provided on the outside of the pipeline (15).

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