Products Description
In continuous casting and hot charging rolling production lines, square billets often suffer from inevitable temperature loss during roller conveying. Common industry problems include uneven cross-section temperature, large temperature difference between billet head and tail, and insufficient overall rolling temperature. These issues directly cause rolling cracks, surface defects, high scrap rate and unstable finished product size, seriously affecting production efficiency and product qualification rate.
As a professional manufacturer, Hebei Yuantuo Electromechanical Equipment Co., Ltd. develops and produces square billet secondary reheating equipment based on induction heating technology. The equipment is specially designed for online temperature compensation of square billets before rolling. It can accurately adjust the billet temperature to meet standard rolling process requirements, effectively solve various temperature-related rolling problems, and ensure stable and continuous operation of the casting and rolling production line.
This is a non-standard customized online reheating device. It can be perfectly integrated into the existing hot rolling production line without large-scale transformation of original equipment and production layout, adapting to most steel mill on-site production conditions.
Working Principle & Production Process
The equipment adopts closed-loop PLC automatic control and electromagnetic induction heating technology, realizing full-automatic online secondary reheating with high efficiency and stability. The whole production process matches the beat of continuous casting and rolling line without manual intervention.
First, the infrared temperature measurement module collects real-time temperature data of incoming square billets and transmits the data to the core PLC control system. The system automatically adjusts the output power of the intermediate frequency power supply according to the preset rolling target temperature. The induction coil quickly heats the under-temperature area of the billet through electromagnetic induction, realizing uniform temperature compensation.
After reheating, the equipment conducts secondary temperature calibration. Qualified square billets will be directly conveyed to the rolling mill through the supporting roller table. The independent circulating cooling system continuously cools the power supply and heating components, ensuring long-term uninterrupted operation of the equipment under high-load production conditions.
Equipment Core Configuration
The complete set of secondary reheating equipment adopts modular integrated design, with stable structure and convenient maintenance. The whole system is composed of complete core functional components, fully meeting industrial continuous production standards:
- Intermediate frequency induction power supply
- High-purity oxygen-free copper induction coil
- High-temperature resistant furnace lining
- Intelligent infrared temperature measurement system
- PLC closed-loop automatic control system
- Complete circulating cooling system
- Production line signal linkage interface
The induction heating component reduces magnetic leakage and heat loss, improving heating uniformity and energy utilization. The control system can realize signal docking with upstream continuous casting equipment and downstream rolling mills, support real-time recording of production temperature, output and equipment operation data, which is convenient for on-site data tracing and production management.
The equipment is equipped with multiple safety protection functions including overvoltage, overcurrent, overtemperature and water pressure abnormality, which effectively avoids sudden equipment failure and reduces production shutdown risks.
Core Customer Benefits
Improve finished product qualification rate:
Eliminate billet temperature difference and insufficient temperature problems, avoid rolling cracks and surface defects caused by uneven temperature, greatly reduce scrap rate and increase metal yield.
Save production cost:
Compared with traditional gas heating, induction reheating causes less oxidation loss of steel billets, no open flame and no pollutant emission, meeting environmental protection production standards. The equipment has flexible start-stop performance, no preheating waiting time, and adapts to continuous and intermittent production modes to save energy consumption.
Reduce line transformation cost:
Compact modular structure covers a small area. It can be directly connected to the existing hot charging and rolling line, no need for large-scale renovation of the original production line, saving factory transformation investment and construction cycle.
Lower operation and maintenance cost:
Multiple safety protection designs reduce equipment failure rate and unplanned downtime. The integrated structure is simple to maintain, effectively reducing daily operation and manual maintenance costs for enterprises.
Company real scene
Cooperative customer
cooperative partner
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Hot Tags: square billet secondary reheating equipment, China square billet secondary reheating equipment manufacturers, suppliers, factory
