Granulation and Heat Recovery from Metallurgical Slags
The difficulties of molten metallurgical slag (including blast furnace slag and steel slag, etc.) heat recovery caused by low thermal conductivity and high enthalpy are analyzed.
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The difficulties of molten metallurgical slag (including blast furnace slag and steel slag, etc.) heat recovery caused by low thermal conductivity and high enthalpy are analyzed.
Heat recovery from slag has gained attention of metal extraction processes. Towards Clean Metallurgical Processing for Proceedings of the 51 Annual Magara, O tions of a direct heat recovery process. As the first ture of air and falling slag droplets has been
If half of heat of blastfurnace slag is to be recovered in Japan, the heat will be equivalent to about 1 million tonnes of coal annually. The bed size to recover heat is estimated to be 6m#215;(cross sectional area) x 3 m height for 100tslag/hour. Cold model experiments were carried out to remove solidified material from the bottom.
slag is being formed rises by approximately 30#176;C. Since this is within the design range of 70#176;C or less, the designed cooling capacity can be obtained. 3. Development of Slag Heat Recovery Process Design of Slag Heat Recovery Pilot Plant The slag heat recovery pilot plant which was built in this development is a counterflow packed bed
Summary This chapter contains sections titled: Introduction Metallurgical Slags and their Application Granulation Techniques Recovery of Thermal Energy from Slag Recovery as
A considerable amount of heat energy is contained in the molten slag tapped from blast present,the BF slag is treated by impinging much water for granulation and the energy is wasted without,dry granulation technology has attracted more and more basic problems and technical difficulties of dry granulation were dry granulation processes
Patent: Recovery of heat from molten slag from metallurgical processes Title: Recovery of heat from molten slag from metallurgical processes Full Record
#0183;#32;We claim: 1. A method of recovering heat from slag from a metallurgical process, comprising the steps of placing a molten slag below radiant heat absorbing tubes, passing a fluid medium through the heat absorbing tubes, causing heat radiated by the molten slag and by subsequently solidified slag at high temperature to undergo transfer to the fluid medium and thereby
heat recovery metallurgical process slag. Energy recovery from slag is difficult as heat removal results in a phase change from liquid to solid Formation of solid slag on the surface of cooling slag inhibits heat transfer and solidification of the slag prevents circulation or movement of slag through heat exchangers and heat transfer devices Formerly slag was poured into slag pits
Molten slag in a vessel or vessels is placed below heat absorbing tubes through which water is passed and converted into steam by the heat radiated by the slag of high temperature, the heat thus being recovered by utilizing the steam for heating purposes, or for driving a turbine or the like. A cover is placed over the tubes and the vessel or vessels to increase the heat transfer efficiency.
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