Research and Application of Brine Recovery System of Freezing Pipe
ZHANG Qing-wu
DONG Jian-gang
Abstract：In a ground freezing project of a mine shaft and a mine inclined shaft ,a diameter of a freezing pipe was small generally and it was difficult to recover brine from the freezing pipe with a high lift submersible pump ,which would bring many difficulties to the excavation and lining operations. Taking a mine inclined shaft freezing construction project as an example ,if the brine would not be recovered , the freezing pipes fully with great quantity of brine would be cut off during the excavation operation and the brine could be directly discharged to the mine inclined shaft working face. Thus construction schedule of the mine inclined shaft would be affected and the environment would be pollu-ted.Especially when the depth of the freezing hole was deep ,due to a high pressure brine of the freez-ing pipe ,the operation personnel would be injured and the equipment at the working face would be damaged by the pressured brine jets. Therefore with a experiment study ,a freezing pipe brine recovery system was researched and developed with compressed air applied to discharge the brine from the freezing pipe and the mentioned problem was solved. The actual application to the project showed that the freezing pipe brine recovery system would not only be easy in the operation and reliable in safety , but would be economic ,high efficient and environment protection.
Keywords：ground freezing of mine inclined shaftfreezing pipebrine recovery systemcompressed air
Publication Date：2014-06-06
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 28-30,33 )