In the forging workshop, industrial furnaces smelt metals, including cupola, induction furnace, resistance furnace, electric arc furnace, vacuum furnace, open hearth furnace, crucible furnace, etc; There are sand mold drying furnace for baking sand mold, ferroalloy drying furnace and casting annealing furnace, etc; In the forging workshop, there are various heating furnaces for heating ingots or billets before forging and heat treatment furnaces for relieving stress after forging; In the metal heat treatment workshop, there are various heat treatment furnaces for annealing, normalizing, quenching and tempering to improve the mechanical function of workpieces; In the welding workshop, there are pre welding preheating furnace and post welding tempering furnace for weldments; There are heating furnaces for sintering metal in the powder metallurgy workshop.

Industrial furnace other industries, such as metal smelting furnace, ore sintering furnace and coke oven in metallurgical industry; Distillation furnaces and cracking furnaces in the petroleum industry; Generator of gas industry; Cement kiln and glass melting and glass annealing furnace in silicate industry; Baking ovens in the food industry.

Adjusting fuel structure of industrial furnace

Although coal is still the main energy in China, it is not only seriously polluted, but also unfavorable to the implementation of high temperature air combustion technology. Therefore, replacing solid fuels such as coal with oil and gas is the strategic direction of energy-saving development of industrial furnaces in China.

Further development and improvement of combustion technology for increasing oxygen enrichment in industrial furnace

It is also the direction of energy-saving development of industrial furnace in the future to make great efforts to improve and promote high-temperature air combustion technology. On the basis of ensuring high-temperature and high-efficiency flame, improving the technology of furnace temperature, making the furnace temperature evenly distributed, and n0x control technology are the core technology to promote oxygen enriched combustion and the development direction in the future. At the same time, CO2 emission reduction and storage will become an important research hotspot. Waste heat recovery and full utilization of low calorific value fuels are the focus of energy-saving development of industrial furnaces.

Industrial furnace masonry will develop towards integration and lightweight. With the development of amorphous refractories, integral pouring and lightweight structure will be developed more widely. New refractory materials are adopted, and high temperature resistant ceramics and ceramic fibers are used to replace refractory bricks, so that the furnace can raise temperature quickly and reduce heat loss.

Energy saving and environmental protection of industrial furnace

Pollution management shall be carried out to reduce or eliminate the emission of harmful waste gas and smoke. For China, energy conservation is one of the biggest environmental protection measures.

Industrial furnace advances the "green degree" of industrial furnace

Improve the energy structure by improving the industrial structure; Adopt the world's most advanced scientific pollution control methods to eradicate pollution from the source: continuously develop new technologies and equipment suitable for China's industrial furnaces, and strengthen waste heat recovery and recycling of resources; Strengthening legislation and law enforcement; Improve the "green degree" by improving environmental protection organizations and improving the people's awareness of environmental protection.