龙滩水电站麻村砂石系统人工砂石料质量控制

人工砂石料质量在生产过程中会受到设备、材料、工艺、人、环境等多种因素的影响,控制好成品砂石料质量是砂石加工系统管理中的关键.在麻村砂石加工系统生产初期,料场开采受夹泥层及风化石等影响,骨料含泥较重;系统采用立轴冲击式破碎机制砂细度模数偏高、石粉含量低且不稳定、含水量不易控制.通过对设备、人、材料、工艺、环境等各种因素进行全面试验和分析,找出关键原因并针对性地采取了多项控制措施,使成品砂石料质量满足规范及合同要求.

Quality Control over Artificial Aggregate from Macun Aggregate System of Longtan Hydropower Station

As the quality of artificial aggregate is affected by equipment, material, technology, man, environment, etc during its production process, the quality control over finished aggregate plays a key role in the management of aggregate processing system. During the initial production stage of Macun aggregate processing systern, the aggregates contain a lot of mud because the exploration of material yard is influenced by silt-laden layer and weathered rock. The aggregate produced by vertical shaft impact crusher in the system has a relatively high fineness modulus, a low and unsteady stone powder content, and a moisture content hard to control. Test and analysis on equipment, man, material, technology, environment, etc are made to find out the causes and to adopt a number of controlling measures accordingly, which makes the quality of finished aggregate meet standards and contract requirements.