人民长江
人民長江
인민장강
YANGTZE RIVER
2014年
22期
76-78
,共3页
成品砂质量%保水性物质%含水率控制%人工砂%大岗山水电站
成品砂質量%保水性物質%含水率控製%人工砂%大崗山水電站
성품사질량%보수성물질%함수솔공제%인공사%대강산수전참
sand product quality%hydrophilic substance%water content control%artificial sand%Dagangshan Hydropower Sta-tion
从2012年5月开始，大岗山水电站大坝人工骨料加工系统生产的成品砂含水率一直偏高，现场采取了加密盲沟、完善截排水系统和防雨棚、适当降低石粉含量等措施之后，效果仍不明显。为此，大岗山公司组织对料源质量进行了分析研究，并开展了相应的试验。结果发现含水率偏高的主要原因是大量细颗粒表面裹有保水物质，而第三筛分车间为干法生产，无法去掉保水物质。根据含水率偏高的原因，对砂石系统进行了改造，解决了成品砂含水率偏高的问题。
從2012年5月開始，大崗山水電站大壩人工骨料加工繫統生產的成品砂含水率一直偏高，現場採取瞭加密盲溝、完善截排水繫統和防雨棚、適噹降低石粉含量等措施之後，效果仍不明顯。為此，大崗山公司組織對料源質量進行瞭分析研究，併開展瞭相應的試驗。結果髮現含水率偏高的主要原因是大量細顆粒錶麵裹有保水物質，而第三篩分車間為榦法生產，無法去掉保水物質。根據含水率偏高的原因，對砂石繫統進行瞭改造，解決瞭成品砂含水率偏高的問題。
종2012년5월개시，대강산수전참대패인공골료가공계통생산적성품사함수솔일직편고，현장채취료가밀맹구、완선절배수계통화방우붕、괄당강저석분함량등조시지후，효과잉불명현。위차，대강산공사조직대료원질량진행료분석연구，병개전료상응적시험。결과발현함수솔편고적주요원인시대량세과립표면과유보수물질，이제삼사분차간위간법생산，무법거도보수물질。근거함수솔편고적원인，대사석계통진행료개조，해결료성품사함수솔편고적문제。
The production of artificial aggregate processing system for dam construction of Dagangshan hydropower station star-ted in May, 2012. Due to strong water-retaining property of sand product, the water content is higher. The measures of increas-ing blind ditches, perfecting water intercepting and drainage system, properly reducing stone powder content etc. , were adopted but failed. For this reason, Dagangshan company analyzed the material sources and carried out some related tests. The analysis results showed that the main cause was hydrophilic substance on the sand product that was difficult to remove due to dry process production in No. 3 screening plant. In view of the cause, the aggregate processing system was improved and satisfied effect was obtained.
