Industrial furnace has wide applicability in both
small and big industries. It is an enclosed structure that produces heat
for industrial purposes. Made up of different kinds of heat resistant
(refractory) elements it can withstand long term use. The enclosed space
holds the materials, gas or air being heated until the desired
temperature is reached.
Industrial
furnaces are available in varying temperature control options or
set for a single temperature, depending on the process for which the
furnace will be used. Industrial furnace commonly have one of the
following atmospheres: air or oxidizing, inert, reducing, salt bath and
vacuum.
The important feature of the furnace include over temperature
protections, service or entry holes, view ports, computer interface and
application software are some of the features available on these
furnaces. Heat sources can be infrared or radiant, natural gas,
induction, conduction, electrical or dielectric.
The industry that widely use industrial furnace is steel industry. The
steel industry uses high-temperature, natural gas-fired furnaces, which
produce large amounts of nitrous oxide (NO
x) per unit of
processed material. The latest
industrial
batch furnace are highly efficient productive and reduced NO
x
emission from all types of industrial furnaces. In this type of furnace
valve is used to oscillate the fuel flow rate to the burner. Oscillation
creates fuel-rich and fuel-lean zones within the flame that retard the
formation of NO
x increasing heat transfer to the load.
Lot of research is going on to develop advanced industrial furnace
designs that provide approximately 30% energy savings and hence CO[2]
reduction, 30% reduction in the furnace size, and 25% reduction of
pollutants including NO[x] as compared to current designs. The main
purpose is to establish such furnace that consume less energy and emit
low pollutant from a range of furnaces.
