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Non-rotary mining cutter with recessed nozzle insert
Non-rotary mining cutter with recessed nozzle insert
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机译:带有嵌入式喷嘴嵌件的非旋转式采煤机
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摘要
A tool for a mineral winning machine, more usually a plough, has a flat plate-like body with a bore containing a nozzle insert and preferably a hard metal cutting region or blade is also provided on the body. High pressure water is conveyed through the bore and nozzle insert to discharge as a jet which is directed to impinge against the mineral or coal face to effect a cut therein hydraulically. The nozzle insert has its discharge mouth in a protected position inside the body.
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