The core of the HIsmelt process is the smelt reduction vessel (SRV) which To develop the HIsmelt technology further, Rio Tinto has signed a. HIsmelt is an iron making technology that has several advantages over using blast furnaces. These advantages and the process are described. HIsmelt is a breakthrough iron making technology that has attained full-scale commercial viability and is taking rapid strides in China where.
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HIsmelt the future in ironmaking technology – Technische Informationsbibliothek (TIB)
The main product of the process tehnology liquid iron or hot metal which can be used in steel melting shop or cast in pig casting machine to produce pig iron. Editions de La Revue de MetallurgieNanterre; Design and engineering for the vertical SRV Fig 1 was completed in Leave a Reply Cancel reply Your email address will not be published.
The main improvements incorporated into the design included a stationary vertical vessel, top injection of solids, a simplified hot air blast lance, a fore hearth for continuous tapping of metal and water cooled panels to overcome refractory wear problems.
Unlike blast furnaces, the HIsmelt process can be started, stopped or idled with ease. The basic mechanism of the process is the reduction and smelting of the iron bearing ores with the dissolved carbon in the bath.
HIsmelt is short for high intensity smelting. The heat transfer between the upper oxidizing husmelt to the lower reducing region is achieved in such a way that the oxygen potential gradient is maintained.
Tecnhology HIsmelt process smelts iron ore and coal in a water cooled refractory lined vertical vessel to produce hot metal suitable as feed to BOF’s and EAF’s.
Designed by Elegant Themes Powered by WordPress. Located in Kwinana, Western Australia, the merchant pig iron facility was designed and engineered with a 6 meter hearth diameter SRV. This reduction reaction produces iron Fe and carbon monoxide CO. Slag can be granulated or directed into pits for further processing. Slag is formed by fluxing the gangue in the iron ore and ash in the coal with lime and dolomite. The plant is presently in the closed down condition. HIsmelt, die Zukunft technloogy Technologie der Roheisenherstellung.
The main product of the process is hot metal. Liquid slag and metal splash acts as a carrier of the heat. Electronic books The e-book database EBC. Careers and apprenticeships Equal opportunities Vacancies Apprenticeships. Whilst scale-up of the process was successfully demonstrated, the complexity of engineering a horizontal vessel limited its commercial viability.
HIsmelt process of Ironmaking
The process by recycling of the plant waste further helps in environment protection. Injected iron ore fines are injected deep into the bath where they are reduced instantly on contact with carbon dissolved in the bath for smelting to take place.
However they need support of some dedicated entreprenuers to prove to the world that they are better technologies. But some iron making technologies like finex, HIsmelt and HIsarna are technologically sound and have potential to have better techno-economics.
To overcome this deficiency a design was developed for water cooled vertical vessel. Typical temperature of hot metal is around — deg C and typical composition of the hot metal is as follows:. HIsmelt, the future in ironmaking technology English. The pilot plant demonstrated flexibility in the raw materials that it can smelt. The process has been developed to treat iron ore fines with minimum pretreatment, making the process more flexible in terms of the quality of iron ore it can treat.
Construction of the Hismeelt with a design capacity oftons per annum, commenced in Typical flow sheet of the process is shown in Fig 2 and the typical layout of the process is in Fig 3. Posted by Satyendra on Jul 2, in Technical 2 comments.
Blast furnace process is no doubt proven route globally.
Byproducts of the process are slag and off gas. Advanced Search Watchlist Search history Search help. This operating flexibility maximizes productivity, as it is easy to maintain a steady state operating window. HRDF vertical smelt reduction vessel technilogy commissioned in the first half of and operated through to May Browse subjects Browse through journals Browse through conferences.