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In order to improve the utilization and added value of the Yangtze river sand, the raw materials for preparing high performance quartz sand insulating brick were investigated, the following conclusions can be obtained through investigating the influence of mechanical milling loading quantity on performance of quartz sand powder. With the increase in milling added material, the average particle size of quartz sand is gradually increased. When the loading quantity is small, the powder particle size distribution is narrow, and when loading quantity is large, the powder particle size distribution is wider. With the increase of milling added material, quartz sand powder high cone decreases, namely quartz sand powder flowability loading quantity increases gradually changed for the better. With the increase of quantity of milling device, tap density of quartz sand powder increases. However, when loading quantity higher than 200g/L ball milling, quartz sand tap density increased considerably larger. Comprehensive consideration the overall process, milling loading quantity was 200g/L preferably, the average particle diameter of quartz sand powder is 11.21um. Introduction With the rise of industrial science and technology, gradually into industrial raw materials a greatly increased demand period, a variety of high quality can be utilized natural or synthetic mineral raw materials are widely utilized in industrial production, high-grade quartz sand is one of [1-4]. With advances in technology and high-grade natural resource consumption, many emerging industries attendant, in these industries, the vast majority of the use of industrial waste or low-grade raw material for preparing high cost of "green" products [5-6] . Mixing mortar material part quartz sand is used for housing construction, so that the lower cost value of quartz sand, hardly reflect its economic value [7-8]. The gradual depletion of raw materials for the current, low quality and saving clay resources for the purpose of state strongly encourage the use of low-grade waste even to develop new building materials, to achieve the purpose instead of clay building materials [9-11]. To address the shortage of supplies of raw materials, quality improvement, conservation of land resources and improve the economic value of low-grade quartz sand for the purpose of the use of low-grade quartz sand along the Yangtze River to develop new building materials [12-14]. This paper studies the influence of the number of revolutions of the milling low-grade quartz sand powder properties, laying the foundation for a high-performance raw materials. Materials and Experimental To the future of low-grade quartz sand along the Yangtze River in the sun to dry, first on low-grade quartz sand raw materials roughing, followed by a 50-mesh sieve to filter, so that the size of sand particles larger particulate mineral removal, to avoid affecting milling . After finally put QM-BP type planetary ball mill pot, the milling time as 60min, milling speed 300r/min, the size of the ball mass 2nd Annual International Conference on Advanced Material Engineering (AME 2016) © 2016. The authors Published by Atlantis Press 701 ratio of 0.75, a quartz sand ore milled under different milling conditions added material remove spare quartz sand powder, with BT-9300H type particle size analyzer quartz sand milled particle size analysis, with the Czech TESCAN VEGA IItype scanning electron microscope morphology. The tap density test method by volume powder. Supreme Court with cone test powder flowability, powder cone higher, reflecting powder flowability worse. Results and Discussion Fig.1 Effect of ball milling loading quantity on the average particle size of quartz sand powder The relative between quartz sand powder particle size and loading quantity is shown in Fig.1, when loading quantity of 100g/L, the average particle size of 7.53um, when the loading quantity of 200g/L, the average particle diameter of 11.21um, when the loading quantity of 300g/L, the average particle diameter of 14.89um, when the ball loading quantity of 400 g/L, the average particle diameter of 15.94um. From the results obtained the following law, the average particle size of quartz sand is gradually increased with the increase of the added material milling. Because the loading quantity increases, the ball material ratio decreases as constant milling media, the number and impact of abrasive quartz sand milling media weakened, so that the average particle size of the quartz sand increases, namely milling effect of variation.

Influence of Loading Quantity on the Properties of Quartz Sand Powder via Mechanical Ball Milling Method