Study On The Pretreatment Of Raw Material Influence The Capability Of Coal Gangue Sintered Hollow Brick

Coal gangues sintered perforated brick, hollow brick that the material is industrial residue coal gangues, because there have been the superior capabilities such as saving energy, economizing clay, protecting environment, slight weight, high intensity, heat secluded, sound secluded etc. It has a very important status in wall material field and it has been paid more and more attention. How to reduce investment, decrease cost, be easy to control produce, adequately exert the performance of the material, let the quality of the product best became a very important research subject.The article carries out systemic research by analyzing raw material pretreatment procedure that influence the quality of the brick. From many aspects study the influence of the particle, the classification, purgation, homogeneous, banality etc to the capability of the material, drying and firing. It has been attained the technology lay out and method about the class of particl, purgation, homogeneous, banality were used many lines of produce. The result is very satisfactory.During the special study: "The Relation's Research on the Granularity of High Calcium Gangue and Lime Burst", Using coal gangue comprise high calcium making bricks, The particle of coal gangue must be under 0.5mm. According to the request to the quality of the product, If the particle is under 0.25mm, Lime burst is completely dispel. Using coal gangues containing high calcium made bricks, the particle must be under 1mm. In producing must be in coordination with prolonging the sintered time, increasing the time of keeping the temperature, All these actions dispel or relieve lime burst, in order to make the cost lowest.During the special study: "The Research on the Granularity of Gangue Influence Plasticity", Point out the fine of the material directly influences the plasticity, the finer is the material, the higher is plasticity index. When the particle reaches 0.177mm, if you continue to diminish the fine, the improvement of the plasticity is not notable.During the special study: "The Research of the Particle of Classification to the Effect of Quality of the Product", attained the three reasonable classifications, the second project of the classification has been proved in practices.During the special study: "The Research of Banality to the Effect of the Coal Gangue Material Capability and the Quality of the Products ", Study banality to the influence of the drying capability, firing capability , and banality temperature .. comprise water to the effect of the banality result , Most apparently banality may enhanced the plasticity of the material.On the side, In the article craft steps have taken by studying purgation homogeneous, may directly use or guide the practice in producing.