Product Bulletin
Steel Reheat Furnaces
SECO/WARWICK steel reheat furnaces have capacities up to 120 tons per hour and may be configured as roller
hearth, rotary hearth, pusher, walking hearth or walking beam for billets, ingots, blooms and slabs.
These furnaces can process ferrous, non-ferrous, alloy and stainless steel products. Each furnace installation can be
configured with a number of different control and firing methods to achieve the highest quality product.
Combustion Systems
Longitudinal or side fired zones with either traditional
modulated fuel/air ratio, more modern on/off burner
control or a combination of these can be applied to these
furnaces. Furnaces are typically equipped with low-emission
burners.
Low-NOx burners are used to offset the emissions created
when using preheated air. One important aspect of
reducing emissions is the elimination of air infiltration by
using properly designed furnace pressure control. This also
helps to reduce scale and contributes to overall reheat
furnace system efficiency.
Walking Beam Furnace

Figure 1 - Preheated top zone burners

The walking beam furnace is designed to heat the product
from all sides. Because of this, the furnace produces very uniform product temperatures. The product travels
through the furnace by using a combination of walking and stationary beams.
The walking beam will lift the product and move it forward. Then the product is lowered onto the stationary
beams. While the load is resting on the stationary beams, the walking beam moves underneath the product back
to the home position ready to perform another walk.

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