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In a blast furnace, fuel , ores, and flux are continuously supplied through the top of the furnace, while a hot blast of air (sometimes with oxygen enrichment) is blown into the lower section of the furnace through a series of pipes called tuyeres, so that the chemical reactions take place throughout the furnace as the material falls downward.
This is a compilation of published detonation velocities for various high explosive compounds. Detonation velocity is the speed with which the detonation shock wave travels through the explosive.
NATO AEP-55 STANAG 4569 is a NATO Standardization Agreement covering the standards for the "Protection Levels for Occupants of Logistic and Light Armored Vehicles". [ 1 ] The standard covers strikes from kinetic energy , artillery and IED blasts .
Blast furnace gas (BFG) [1] is a by-product of blast furnaces that is generated when the iron ore is reduced with coke to metallic iron. It has a very low heating value , about 3.5 MJ/m 3 (93 BTU /cu.ft), [ 2 ] because it consists of about 51 vol% nitrogen and 22 vol% carbon dioxide , which are not flammable.
Blast Furnace in Govăjdia built between 1806 and 1810 on the site of an old iron working workshop called "Old Limpert", the furnace's capacity is 43,9 cubic meters and it operated with charcoal brought from Vadu Dobrii and the iron ore mined and brought from the iron ore mines at Ghelari via narrow-gauge railway. It was decommissioned in 1924 ...
A tuyere, seen from inside a blast furnace An old tuyere in Nok, Nigeria. A tuyere or tuyère (French pronunciation:; English: / t w iː ˈ j ɛər /) [1] [2] is a tube, nozzle or pipe allowing the blowing of air into a furnace or hearth. [3] Air or oxygen is injected into a hearth under pressure from bellows or a blowing engine or other devices.
The HIsarna ironmaking process is a direct reduced iron process for iron making in which iron ore is processed almost directly into liquid iron ().The process combines two process units, the Cyclone Converter Furnace (CCF) for ore melting and pre-reduction and a Smelting Reduction Vessel (SRV) where the final reduction stage to liquid iron takes place.
During the Han dynasty (202 BC – 220 AD), most, if not all, iron smelted in the blast furnace was remelted in a cupola furnace; it was designed so that a cold blast injected at the bottom traveled through tuyere pipes across the top where the charge (i.e. of charcoal and scrap or pig iron) was dumped, the air becoming a hot blast before ...