| 摘要 |
PROBLEM TO BE SOLVED: To provide a circulation liquid filtration device which improves filtration capacity and cooling capacity of circulation liquid such as cutting oil, thereby, makes filtration and temperature control of circulation liquid such as cutting oil in large-size machines or in a plurality of machines possible, or makes an installation area per unit filtration member area small to permit miniaturization.SOLUTION: A cutting oil circulation device (circulation liquid filtration device) for performing filtration and temperature control of cutting oil 3 (circulation liquid) and recirculating the cutting oil includes: a filtration tank 6D for storing cutting oil 3; an inflow part 8 for causing the cutting oil 3 to flow in to the filtration tank 6D; an efflux part 9 for causing the cutting oil 3 to flow out from the filtration tank 6D; a dirty side DS for dividing an inner space of the filtration space of the filtration tank 6D into upper and lower spaces and joining the upper space with the inflow part 8; a roll sheet-shaped filtration member 11b for making the lower space a clean side CS joined with the efflux part 9; and a temperature control pipe 15 which is arranged on the clean side CS and controls the temperature of the cutting oil 3. |
