| 摘要 |
PURPOSE: A bag filter tank for filtering a grinding oil and a grinding oil recycling system are provided to remove foreign substances contained in a grinding oil effectively and to extend a use time and a replacing period due to a reverse washing. CONSTITUTION: A bag filter tank(500) for filtering a grinding oil comprises an outer case(530) having a through-hole(531) formed in a main body and a filter(540) inserted in an outer case. An inner case(550) having a through-hole(551) is combined in a filter. An outer case, a filter, and an inner case are fixed firmly at a supporting plate in the backflow of a grinding oil for a filter washing by forming a supporting plate(520) having a support hole(521) at an upper end of an inner surface of a main body and fixing a filter fixing plate(541) at an upper part of a support hole after fixing with successive insertion of an outer case, a filter, and an inner case in a support hole.
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