Research On Paste Parameter Of Unclassified Tailings-Granulated Blast Furnace Slag

With the developing of mining industry, environment of mines is changing to damage to ecological environment and our life, such as a large amount of tailings, mullock, coal gangue, coal–ash, smelting slag muck are stacked. However the lots of municipal solid waste's heaping is causing many problems to mineral industry, environment, economy etc. Disposing and utilizing to these solid waste and protecting environment and safety of life property effectively and making the mined-out areas filled and the solid waste not discharge to grand, are important projects need to be solved urgently.Studying on parameter of unclassified tailings-granulated blast furnace slag and using the technology can achieve thinking of green mines, improve ecological environment and workshop condition. The unclassified tailings and granulated blast furnace slag can be obtained easily, so, it is economical and useful for environment. Because the paste needn't dehydration, it also be beneficial to work condition and keep fire form the mineral bed. Application of this technology can improve strength of fillings for wall rock, reduce the moving and collapse of wall rock availably, advance the efficiency of mining, lower the loss rate and ore dilution rate, and decrease cement depletion quantity and backfill cost effectively. Studying on paste parameter and equipping pumping paste filling system is a good method to get away from crisis and improve efficiency for mines.This article bases on a series of experiment of loop pipe and parameter testing of unclassified tailings-granulated blast furnace slag, roundly and particularity, analyzes the paste parameter with methods of theories and numerical analysis and PC processing. The specific research contents involves: The physico-chemical performance test of materials of backfill paste, testing of paste basic parameter, calculating of paste rheologic parameters, analyzing of paste resistance properties, which for the sake of grasping the basic physico - chemical performance of unclassified tailings and granulated blast furnace slag, for exploring rational proportion of paste design for making full use of mines'municipal solid waste and improving mines'ecological environment and workshop condition and providing foundation theories to mines in future, for calculating parameter of paste yield stress and viscosity coefficient to know the paste flow characteristic, for finding out the relationships resistance to each main factor that determinates the pipe conveying parameter scope and instructs industry design and production in mines.