介绍两种多羟基糖(白砂糖和葡萄糖)加入量对镁钙质中间包干式料性能的影响.试验中分别掺入3wt%、4wt%、5wt%、6wt%的两种多羟基糖作为干式料结合剂,在通过振动台成型后对其在低温(150 ℃)、中温(1100 ℃)和高温(1550 ℃)进行热处理.按照相关标准检测镁钙质干式料的常温抗折强度、常温耐压强度、体积密度和气孔率,以及烧后线变化率等指标.试验结果显示:试验所用的白砂糖和葡萄糖在低温150 ℃下的强度大能满足使用要求;白砂糖在中温1100 ℃和高温1550 ℃烧后线变化较小;使用多羟基糖做结合剂产生的烟气量较小,符合环保要求.
The effect of poly hydroxyl saccharide(white granulated sugar and anhydrous glucose)content on the properties of magnesia-calcia dry material was introduced.The addition amount of poly hydroxyl saccharide is 3wt%、4wt%、5wt%、6wt%.The samples were formed through ramming vibration and sintered separately at the low temperature (150 ℃), middle temperature(1100 ℃) and high temperature(1550 ℃).The cold bending strength and compressive strength, volumedensity, linear change and porosity of samples were measured.Experimental results show that white granulated sugar and anhydrous glucose can be used as binder at 150 ℃.The linear change of white granulated sugar is fewer change at 1100 ℃ and 1550 ℃.Using poly hydroxyl saccharide produce less smoke.This method conform to the requirements of environmental protection.
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