8 Using the machining water recirculation system
BIESSE S.p.A. © - p706k0009.fm251111
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8 Using the machining water
recirculation system
The recirculation system for the treatment of the machining water is designed to treat the water
used during cuts made with a water jet and abrasive.
The cleaning cycle is subdivided into three phases:
• lifting
• physical treatment
• extraction of solid parts
8.1 Lifting
The water used during the machining operation is accumulated in the machining basin (TK1001).
By means of two ducts with different suction lifts on the bottom of the basin, the water is sucked
out via a pump (P1001). The suction is not simultaneous on both ducts; it is piloted - at 1-minute
intervals - from two ball valves commanded by the software. These valves allow suction on one
duct at a time, so the sediment is channelled from both the front and the back of the basin.
The pump is activated from a command on the interface. For further information, refer to the User
Interface Manual.
8.2 Physical treatment
The water sucked up by the pump is sent to the centrifugation separator D1001 (hydrocyclone).
The special shape of the centrifugation separator makes it easier for the solid particles to fall into
the lower part while the clean water runs out from the upper part of the device and is sent back to
the machining basin via nozzles located on the bottom of the basin (on the long sides).
The job of the nozzles is to keep the sediment moving, as otherwise it tends to settle.
The impurities that have fallen into the lower part of the separator are expelled via the manual
bypass valve. They reach the recycling unit, with its drainage bag (Big Bag) D1002 (optional) that
holds back the solid elements.
The opening of the bypass valve needs to be adjusted so that a consistent quantity of
sediment (water+suspended solids) is extracted and the drainage system is not overloaded.
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