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The "Rail Pioneer" of Billet Transfer in Steel Plants: The Technical Code of Electric Flat Cars
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Product Introduction
In the fervent production chain of a steel mill, rail-mounted electric flat cars are the core hub connecting "steel making → steel rolling → warehousing" - they must not only withstand the weight of hundreds of tons of steel billets, but also endure the high temperature radiation of freshly-baked steel billets, and achieve millimeter-level precise docking on complex tracks.
Technical Parameters:
| Load Capacity | 5 - 500 tons |
| Size | Customizable |
| Motor Power | 1.5 kW-30 kW (matched according to load capacity) |
| Rated Running Speed | 0-30 m/min (stepless speed regulation) |
| Table Surface Protection | Firebrick and aerogel blanket double-layer insulation |
Power Supply Solution: Matching the Steel Plant's "Power Supply Network"
To meet the long-distance, multi-operational, and high-safety transportation needs of steel plants, electric flat cars have developed four power supply models, precisely adapted to different scenarios:
1. Battery Powered (KPX Series)
Core Advantages: Unlimited operating distance + extreme flexibility, free from the constraints of cables and tracks, suitable for complex routes with multiple workshops and curved tracks;
Technological Upgrade: Utilizing lithium iron phosphate power cells (supporting fast charging, 80% charge in 1 hour) and equipped with an intelligent energy management system, they can operate continuously for 5 hours with a full load of 20 tons (such as the Better Intelligent 20-ton Steel Coil Transfer Car);
Heat-Resistant Design: The battery compartment utilizes aerogel interlayer insulation (resistant to 600°C), ensuring stable operation even when transporting red-hot steel billets. 2. Low-Voltage Track Power Supply (KPD Series)
Core Advantages: Safe 36V voltage + maintenance-free. The track acts as the conductor, resistant to impact or burns (even falling steel billets will not damage the power supply system).
Technical Breakthrough: An onboard boost module converts 36V to 380V to drive the YZ hoist metallurgical motor (with a stall torque of 2.5 times the rated value), enabling smooth starting and stopping of loads exceeding 100 tons.
Applicable Scenario: Fixed track and long-distance transportation (such as hot billet conveyor lines in steel rolling mills, where single-track lengths can reach 1,000 meters).
3. Cable Reel Power Supply (KPJ Series)
Core Advantages: Low cost + fast installation. A hysteresis-coupled reel automatically retracts and unwinds the cable, preventing tangles.
Limitations and Optimizations: The original maximum distance was ≤200 meters. After upgrading to fiber-optic conductive slip rings, the distance has been expanded to 500 meters, making it suitable for inter-plant transfers in medium-sized steel mills. 4. Busbar Power Supply (KPC Series)
Core Advantages: Unlimited distance + high reliability. Busbars are built into the trackside trench, automatically opening the cover to draw power when a flat car passes.
Application: Suitable for fixed routes in continuous production (such as billet transfer in a steelmaking continuous casting line). The dual-current collector redundancy design reduces failure rates by 80%.
Breakthrough Scenarios: Serving the Entire Steel Production Process
From steelmaking to finished product, electric flat cars serve as "the exclusive elevator for steel billets":
Steelmaking → Rolling Mill: Transporting red-hot billets (temperature ≥ 800°C) through an insulated platform and rapid transfer (adjustable speed 0-30 m/min), ensuring the billets meet the required temperature upon entering the rolling mill (reducing rolling energy consumption by 15%).
Rolling Mill → Storage: Transporting cold billets/finished products through automated palletizing and intelligent scheduling, combined with a high-bay warehouse for unmanned storage.
For specialized scenarios, such as ladle transfers (temperature 1200°C, weight 100 tons), flat cars utilize ceramic fiber insulation and dual redundant brakes to ensure safety under high temperatures and heavy loads.
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Weizhuang, Changyuan，Xinxiang city, Henan province, China