News - CHNZBTECH

Home » News

CHNZBTECH

NEWS CENTER

Modern applications of the blast furnace

Iron blast furnaces[edit]Blast furnaces are still an important part of modern ironmaking production. Modern furnaces are very effaicient, including Cowper furnaces for preheating the blast and employing recovery systems to extract heat from the hot gases exiting the furnace. Industry competition dri

2023 03-31

Blast furnace Process engineering and chemistry

Blast furnace Process engineering and chemistry A blast furnace is a metallurgical furnace used to smelt and produce industrial metals, usually pig iron but also other metals such as lead or copper. Blast is the provision of combustion air above atmospheric pressure. [1]In a blast furnace, fuel (cok

2023 03-30

Ladle and types

In metallurgy, a ladle is a barrel or vessel used for transporting and pouring molten metal. Ladles are commonly used in foundries and range in size from small hand-held containers similar to kitchen ladles, which can hold 20 kg (44 lbs), to large steel mill ladles, which can hold up to 300 tons (29

2023 03-24

Vacuum furnace and common uses

A vacuum furnace is a furnace in which the products in the furnace are surrounded by vacuum during processing. The absence of air or other gases prevents oxidation, product heat loss through convection, and eliminates sources of contamination. This allows the furnace to heat materials (usually metal

2023 03-23

Vacuum induction melting

Vacuum induction melting (VIM) uses an electric current to melt metal in a vacuum. The first prototype was developed in 1920. [1] Induction heating induces eddy currents in the conductor. The eddy currents create a thermal effect to melt the metal. [2] Vacuum induction melting has been used in the a

2023 03-17

Vacuum arc remelting

Vacuum arc remeltingVacuum arc remelting (VAR) is a secondary melting process used to produce metal ingots with increased chemical and mechanical homogeneity for demanding applications. [1] The VAR process has revolutionized specialized traditional metallurgical technology indust

2023 03-16

Cooling methods arc furnaces

Smaller arc furnaces may be adequately cooled by circulation of air over structural elements of the shell and roof, but larger installations require intensive forced cooling to maintain the structure within safe operating limits. The furnace shell and roof may be cooled either by water circulated th

2023 03-10

Advantages for steelmaking

The use of EAF allows steel to be made from 100% scrap metal raw material. This significantly reduces the energy required to make steel compared to ore primary steelmaking.Another benefit is flexibility: While blast furnaces cannot drastically change output and can run for years at a time, electric

2023 03-09