Automatic trolley furnaceThe design should revolve around six core principles: structural strength, high temperature resistance, thermal uniformity, automation control, safety protection, and maintenance convenience. The following are specific design principles and analysis:
1、 Structural strength and stability
Framework design: Adopting reinforced frame structures such as box or truss structures to enhance overall rigidity and stability. Thick walled steel frames are used at the bottom and around the furnace body to ensure that long-term deformation does not occur during high-temperature operations.
Load dispersion: By reasonably arranging the framework structure, stress is evenly distributed to avoid stress concentration. For example, increasing the thickness and cross-sectional area of steel structures in stress concentration areas such as furnace doors, trolley connections, and furnace bodies can improve their load-bearing capacity.
Optimization of track system: A sturdy and durable track system is installed below the furnace body. The track material is made of high-strength alloy steel, which has excellent wear resistance and compression resistance, ensuring smooth operation of the trolley.
2、 High temperature resistance and deformation resistance
Refractory material selection: High grade refractory materials are used inside the furnace, such as high-purity alumina fiberboard, mullite bricks, etc. These materials not only have good insulation performance, but also can withstand extremely high temperatures without being easily damaged or deformed.
Insulation layer layout: Reasonably arranging the position and thickness of the insulation layer can effectively prevent heat conduction to the external structure and reduce stress caused by temperature differences, thereby reducing the risk of deformation. The high-temperature trolley furnace may use full fiber modules or multi-layer composite insulation systems to ensure good insulation effect.
Thermal compensation mechanism: Consider the effects of thermal expansion and contraction in the design, add appropriate expansion joints or elastic connectors, allow the structure to expand and contract freely when the temperature changes, and avoid deformation caused by internal stress.
3、 Thermal uniformity and temperature control
Heating element layout: The design and arrangement of heating elements in the furnace should meet the requirements of heat treatment and furnace temperature uniformity. For example, using a five sided heating method (left and right sides, furnace surface, rear wall, and trolley surface) to achieve good temperature uniformity inside the furnace.
Temperature control system: equipped with advanced temperature control system, including temperature sensors, temperature control instruments, and actuators. The temperature sensor monitors the temperature changes inside the furnace in real time and transmits the signal to the temperature control instrument; The temperature control instrument automatically adjusts the power output of the heating element according to the set process curve to achieve precise temperature control.
Air circulation system: In order to achieve the specified furnace temperature uniformity and improve heating speed, the furnace design should be equipped with necessary air ducts, baffles, air guide devices, heat shields, exhaust holes, circulating fans and their control devices. The fan should be interlocked with the heating power supply so that it can automatically cut off the heating power supply in case of fan failure.
4、 Automation and Intelligence
Electric trolley system: The trolley should be equipped with an electric drive system to achieve horizontal movement and have a high workload. At the same time, the trolley should be equipped with mechanical positioning devices and electrical limit devices to ensure accurate and reliable positioning within the furnace, ensuring the sealing and safe use of the furnace.
Intelligent control system: using microprocessor digital display temperature control instrument, it has the characteristics of high temperature setting accuracy, high resolution, and simple and intuitive operation interface. At the same time, it can integrate functions such as timers and program control to achieve automated operations and intelligent management.
Remote monitoring and fault diagnosis: By equipping remote monitoring and fault diagnosis systems, real-time monitoring and early warning of the operation status of the trolley furnace can be achieved. Once a malfunction or abnormal situation occurs, the system can immediately issue an alarm and indicate the cause of the malfunction, facilitating timely maintenance and handling.
5、 Safety protection and environmental protection
Safety interlock device: For resistance furnaces with a rated voltage higher than 25V, interlock protection switches must be installed. When the furnace door or lid is opened, the power is automatically cut off; Or use operating tools with grounding protection or reliable insulation to ensure operational safety.
Sealing design: The door or cover of the intermittent resistance furnace should be able to be reliably closed to minimize air leakage as much as possible. Electric heating elements and thermocouple outlet holes should be sealed; The welds on the furnace shell and other parts of the controlled atmosphere furnace should be leak free to ensure the stability and safety of the atmosphere inside the furnace.
Environmental emissions: equipped with exhaust gas treatment devices to purify and treat the exhaust gas generated during the heating process before discharging. At the same time, measures such as optimizing the temperature field distribution inside the furnace and the layout of heating elements are taken to reduce energy consumption and pollutant emissions.
VIAutomatic trolley furnaceConvenience of maintenance and upkeep
Modular design: Adopting the modular design concept, the trolley furnace is divided into multiple independent module units. Each module unit has independent functions and structural characteristics, making it easy to disassemble, replace, and maintain.
Standardization of vulnerable parts: Standardized design is adopted for vulnerable parts such as heating elements, refractory materials, etc., to facilitate procurement and replacement. At the same time, provide a detailed list of vulnerable parts and replacement cycle recommendations to guide users in regular maintenance and upkeep.
Operation training and technical support: Provide users with comprehensive operation training and technical support services, including knowledge and skills training in equipment operation, maintenance, troubleshooting, and other aspects. Ensure that users are proficient in using and maintaining the trolley furnace.