Reheating Furnaces

Reheating Furnaces

Reheating furnaces are industrial furnaces used in the steel industry to reheat steel billets, blooms, slabs, and ingots to a specific temperature before they are rolled or forged into finished products. These furnaces are an essential part of the steel manufacturing process, as they ensure that the steel is at the correct temperature for shaping and forming. Reheating furnaces are typically large, box-shaped structures that are lined with refractory materials to withstand the high temperatures required for heating steel. There are several types of reheating furnaces, including walking beam furnaces, pusher furnaces, and rotary hearth furnaces. Walking beam furnaces use a system of beams to move the steel through the furnace, while pusher furnaces use a system of pusher rams to move the steel. Rotary hearth furnaces rotate the steel on a circular hearth to ensure even heating. Each type of furnace has its advantages and disadvantages, and the choice of furnace depends on factors such as the size and shape of the steel being reheated and the desired production rate. Reheating furnaces are typically fueled by natural gas or coke oven gas, although some furnaces use oil or electricity. The fuel is burned in the furnace to produce heat, which is transferred to the steel through radiation and convection. The temperature of the furnace is carefully controlled to ensure that the steel is heated to the correct temperature without being overheated, which can cause damage to the steel. In conclusion, reheating furnaces are a critical component of the steel manufacturing process, allowing steel to be heated to the correct temperature for shaping and forming. There are several types of reheating furnaces, each with its advantages and disadvantages, and the choice of furnace depends on factors such as the size and shape of the steel being reheated and the desired production rate. These furnaces are typically fueled by natural gas or coke oven gas and are carefully controlled to ensure that the steel is heated to the correct temperature without being overheated.

steel industry, billets, blooms, slabs, ingots

— John Hall

CITATION : "John Hall. 'Reheating Furnaces.' Design+Encyclopedia. https://design-encyclopedia.com/define/reheating-furnaces?E=299363 (Accessed on October 14, 2026)"