The powder recovery of the artificial aggregate system of Dachaoshan Hydropower Station

The dam for the Dachaoshan Hydropower Station requires that the sand of its RCC has the powder content increasing from 12% to 15%±1% and the content of powder diameter of less than 0 08 mm should be over 8% In order to meet this requirement, a powder recovery system was set up in the artificial aggregate system in the Dachaoshan Hydropower Station, according to the local conditions and under the prerequisite that the production capacity and quality standards of the original system could not be lowered Such recovery system has successfully solved the quality problem of the sand used by the RCC of the dam and has gained good economic and social benefits