by National Lending Library for Science and Technology .
Written in English
Originally published as Rabota maetenovskikh pechi s khromomagnezitovymi svodami. Metallurgizdat, 1958.
|Statement||translated from the Russian by A.Behr;edited by J.R.Lakin.|
|Series||Great Britain.National Lending Library of Science & Technology.Translations of Russian books|
|The Physical Object|
|Number of Pages||433|
Steel makers have hoped since earlier years for operating the furnace always with a stabilized hearth. It has been dominantly considered that the magnesite stamp method is the best for the hearth construction of a basic open hearth furnace, but even the hearth which is made by this method is necessary to be repaired periodically in the later half period of one furnace campaign owing to the Author: Tsuyoshi Kai, Shigetoshi Asakuma, Kazuyoshi Yasunaga. This section is from the book "An Elementary Outline Of Mechanical Processes", by G. W. Danforth. Also available from Amazon: An elementary outline of mechanical processes. Operation Of The Open-Hearth Furnace. The purpose of this operation is to remove, so far as can be done by the process, the silicon, manganese, carbon, phosphorus and. The modification of a basic open hearth furnace process in which a stream of oxygen is introduced into the molten metal in the furnace chamber substantially beneath the level of the molten metal in the furnace chamber by means of a tuyere extending through the furnace lining, the tuyere and adjacent parts of the furnace lining being protected from erosion by a stream of hydrocarbon fuel Cited by: 8. In open hearth furnace, pig iron, steel scrap etc. are melted to obtain steel. This furnace is widely used in American foundries for steel production. The hearth is surrounded by roof and walls of refractory bricks as shown in Fig.
Open hearth furnaces are furnaces that are often used in the production of steel. Designed with a somewhat shallow hearth and roof that is lower than other furnace designs, the open hearth furnace creates an environment that aids in the removal of impurities from the pig iron that is used in the steelmaking process. Open-hearth furnaces are called acid or basic, depending on the nature of the refractory materials lining the melting chamber. Magnesite, magnesite-chromite, and chrome-magnesite bricks are used to line basic open-hearth furnaces, and magnesite powder is used to fettle the hearth. Steelmaking Process — Open Hearth Furnaces - The open hearth furnace (OHF) is a shallow, refractory-lined basin in which scrap and molten iron are melted and refined into steel. Scrap is charged to the furnace through doors in the furnace front. Hot metal from the blast furnace is added by pouring from a ladle through a trough positioned. an open-flame regenerative furnace for making steel of a given chemical composition and quality from cast iron and steel scrap. An open-hearth furnace has the following major components: a melting chamber, which consists of a hearth, front and back walls, and a crown in which smelting takes place; right and left heads, which consist of the heads themselves and vertical channels for supplying.
Steel - Steel - Open-hearth steelmaking: Though it has been almost completely replaced by BOF and EAF steelmaking in many highly industrialized countries, the open hearth nevertheless accounts for about one-sixth of all steel produced worldwide. The open-hearth furnace (OHF) uses the heat of combustion of gaseous or liquid fuels to convert a charge of scrap and liquid blast-furnace iron to. 3. D.Z. Savostin, Operation of Open-Hearth Furnaces with Chrome-Magnesite Roofs [in Russian], Metallurgizdat, Sverdlovsk (), pp– Google Scholar. Before knowing the use of open hearth furnace,let's get introduced ourselves with “What is open hearth furnace?” Open hearth furnaces are types of furnaces among various types of furnaces where excess carbon and other impurities are burnt out of p. particularly to basic open hearth furnaces having basic brick Walls. In my copending case, Serial No. ,, filed March 7, , now abandoned, I have described generally some of the problems relating to the operation of all-basic open hearths, particularly with respect to the roofs thereof. Despite the disadvantages of using silica brick.