Flash Smelting. Analysis, Control and Optimization by W. G. Davenport, E. H. Partelpoeg

By W. G. Davenport, E. H. Partelpoeg

A entire exam of flash smelting, describing the method usually, its items, power specifications and the furnace and its operation. there's an in-depth examine of Outokumpu and Inco flash smelting. The book's major emphasis is on mathematical analyses, in particular constructing mass and warmth stability equations, extra illustrated by way of practicable difficulties, to explain the smelting approach below near-autogenous stipulations.

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A. (1982) Production of Matte, White Metal and Blister Copper by Flash Furnace, J. Metals, 34(6), 54-59. McDonald, J. R. and Dean, A. H. , Park Ridge, NJ, USA. , Terayama, T. Hayashi, T. and Kimura, T. (1981) The Application of Pulverized Coal to the Flash Furnace at Toy o Smelter, in Copper Smelting-An Update, edited by George, D. B. and Taylor, J. 201-212. Shima, M. and Itoh, Y. (1980) Refractories of Flash Furnaces in Japan, J. Metals, 32(11),12-16. , Musial, S. and Sobierajski, S. (1985) Glowgow 2 Copper Smelter—Seven Years of Operational Experience, in Extractive Metallurgy 85, IMM Publications, London, pp.

The heated high-pressure water is transformed to steam after it leaves the boiler—by reducing its pressure. The steam is used for heating duties around the smelting complex and usually for generating part of the smelter's electrical needs. 1. This is equivalent to 6-15% of the concentrate feed. About half of these particles drop out as dust in the abovedescribed waste heat boilers. Most of the remainder is caught in electrostatic 28 Flash Smelting precipitators (McDonald and Dean, 1982) in which the particles are(i)charged in a high voltage electrical field; (ii) caught on a charged wire or plate; and (iii) collected by neutralizing the charge and shaking the wires or plates.

These appreciably extend sidewall life. 3 Matte and Slag Tapholes Matte is tapped from the Inco furnace through one oftwo copper blocks on a sidewall; slag is tapped through a similar block on an endwall. Reservoirs of matte and slag, ~x/2rñ deep each are usually maintained in the furnace. As with Outokumpu flash smelting, the tapping manoeuvres are largely manual though a tapping/plugging machine is used for one of the new furnaces. 2 Auxiliary Equipment The major pieces of auxiliary equipment required for Inco flash smelting are: (a) (b) (c) (d) (e) solids feed dryer, oxygen plant, off-gas cooling system, dust recovery and recycle system, S0 2 fixation system.

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