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Billet Heating / Reheating Furnace

Billet heating /reheating furnace is used in steel rolling mills to heat steel billets to 1100–1250°C, making them soft enough for rolling. It ensures: correct rolling temperature, uniform heat distribution, Stable rolling quality, higher production efficiency, there are two main types: Gas/Oil-Fired Billet Reheating Furnace, Induction Billet Heating Furnace. Each type serves different production needs.

1100–1250°COp. Temp.
1000 ~ 15000KwHtg. Pwr.
Gas/Oil-FiredTypes

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Что такое Billet Heating / Reheating Furnace?

Billet heating/reheating furnace is a thermal heating system widely used in steel rolling mills to heat cold steel billets to the required rolling temperature. Billet heating furnaces are essential equipment in rebar mills, section mills, wire rod mills, and plate rolling lines. There are two main types: Gas/oil-Fired Billet Reheating Furnace – uses natural gas or heavy fuel oil to heat billets. Induction Billet Heating Furnace – uses electromagnetic induction to heat billets internally. Each type is suitable for different production needs, energy availability, and environmental requirements.

Введение в Billet Heating / Reheating Furnace

Gas / Heavy Oil Billet Reheating Furnace is an industrial heating system . It uses natural gas, LPG, diesel, or heavy oil as fuel and transfers heat to the billets through burners, flame radiation, and hot-air circulation.Fuel is burned in high-efficiency burners to generate temperatures up to 1200°C, and the heat is transferred to the billets through a combination of radiation, convection, and conduction, ensuring the billets are heated quickly and uniformly from surface to core.

The gas/oil billet heating furnace features three temperature zones：preheating, heating, and soaking/equalizing to gradually and uniformly raise billet temperature, while multiple sensors and PLC-controlled burners ensure precise temperature control. Heat moves from the billet surface to its core, and the process can be continuous or step-wise, with some furnaces equipped with waste heat recovery for improved efficiency.

Induction Billet Heating Furnace uses electromagnetic induction to heat the steel billets internally. The billets themselves generate heat when exposed to an alternating magnetic field, resulting in fast, uniform, and highly controllable heating.These eddy currents generate heat directly within the steel, rather than from the surface.

In an induction billet heating furnace, medium- or high-frequency power is supplied to a copper coil, creating an alternating magnetic field that generates internal heat via eddy currents. Infrared sensors and PLC control maintain the billet temperature within ±10°C, while the process requires no combustion, making it energy-efficient, clean, and environmentally friendly.

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Высокое качество

The Gas/Heavy Oil Billet Reheating Furnace is built for high-capacity, continuous steel production, featuring a multi-zone design for uniform heating, PLC-based automation for real-time temperature control, and automatic fuel and flame management for safety. Its high-grade refractory construction ensures resistance to thermal shock, corrosion, and wear, providing long-lasting reliability and efficiency.
Индивидуальный дизайн

Customized design according to the actual requirement of customers.
Хорошая производительность

1:Multi-zone burners (Gas/Oil) or internal electromagnetic heating (Induction) ensure rapid and uniform billet heating, reducing energy consumption by up to 25%. Heat billets to 1100–1250°C in minutes, supporting both continuous large-scale production and flexible batch operations. 2.Uniform Temperature Distribution:Optimized design guarantees consistent temperature across the billet, reducing defects and improving rolling quality. 3.Precise Temperature Control:Real-time sensors and PLC automation maintain temperature within ±3–5°C, ensuring high-quality steel with predictable properties.

Характеристики товара

Gas/Heavy Oil Furnace: Reliable, high-capacity furnace with uniform heating, durable construction, and precise automated control. Induction Furnace: Fast, energy-efficient, precise, and eco-friendly furnace with uniform internal heating and flexible, compact design.

Принцип работы

The Gas/Heavy Oil Billet Reheating Furnace heats billets externally using high-temperature flame and hot gases, transferring heat through radiation, convection, and conduction across multiple temperature zones, with PLC-controlled burners ensuring uniform temperature. The Induction Billet Heating Furnace heats billets internally via electromagnetic induction, generating heat through eddy currents, with infrared sensors and PLC control maintaining precise, uniform temperature without combustion, making it fast, energy-efficient, and environmentally friendly.

Спецификация

Model	Furnace Type	Capacity (T/H)	Capacity (T/H)	Heating Temperature	Fuel Type	Furnace Length (m)	Power Consumption (kWh/T)	Fuel Consumption (Nm³/T)
GF-10	Walking Beam	10 T/H	100–150 mm	1100–1250°C	Natural Gas / LPG	24–28 m	30–50	60–80
GF-20	Walking Beam	20 T/H	120–160 mm	1100–1250°C	Natural Gas / LPG	32–36 m	30–50	55–75
GF-30	Pusher Type	30 T/H	120–200 mm	1100–1250°C	NG / Coal Gas	40–45 m	30–50	50–70
GF-50	Walking Beam	50 T/H	150–200 mm	1100–1250°C	NG / Oil	55–60 m	30–50	45–65
GF-80	Walking Beam	80 T/H	150–250 mm	1100–1250°C	NG / Oil	65–70 m	30–50	45–65

Model	Output Capacity (T/H)	Billet Size (mm)	Heating Temperature	Power Supply	Installed Power (kW)	Heating Efficiency	Power Consumption (kWh/T)	Line Frequency
IF-1	1 T/H	60–90 mm	1100–1150°C	MF Power	600–800 kW	90–95%	420–480	500–1000 Hz
IF-3	3 T/H	80–120 mm	1100–1150°C	MF Power	1000–1500 kW	90–95%	400–460	500–1000 Hz
IF-5	5 T/H	100–140 mm	1100–1150°C	MF Power	1500–2200 kW	90–95%	380–450	500–1000 Hz
IF-8	8 T/H	120–160 mm	1100–1150°C	MF Power	2500–3500 kW	90–95%	360–430	500–1000 Hz
IF-10	10 T/H	130–160 mm	1100–1150°C	MF Power	3000–4200 kW	90–95%	350–420	500–1000 Hz

*Производительность будет варьироваться в зависимости от различных материалов, размера частиц сырья и других факторов

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Billet Heating / Reheating Furnace

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Billet Heating / Reheating Furnace

Что такое Billet Heating / Reheating Furnace?

Введение в Billet Heating / Reheating Furnace

Характеристики товара

Принцип работы

Спецификация

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