POMlock™

The POMlock™ suction leg sealing unit collects the discharge from suction box drop legs and other suction waters normally transferred to a sizeable sealing pit.

The drainage from the top former is also fed to the POMlock™. In the POMlock™, some of the free air in these return flows is removed.  The flows are stabilized and consistency variations are avoided. The option exists for dividing the collector channel into multiple sections into which the white water can be diverted according to its consistency.

POMlock™ C is a closed type unit consisting of a closed collector-manifold in combination with one or two CycloPipe™ vessels, for removing air. Each CycloPipe™ is connected to a POMp™ Degasser or to the process pump.

Individual drop leg pipes are brought to a common collector.  Water from the collector is led to the CycloPipe™ - a narrow cylindrical vessel into which the water is fed tangentially.  In the CycloPipe™ large air bubbles are removed centrifugally from the return flows.  The design of the collector is readily adapted to different configurations of the wire section on the paper machine.  POMlock™ C is compact and its closed construction provides a neat solution for handling suction water.

POMlock™ M consists of a series of small reservoirs that discharge into an open channel. This construction permits visual control of various dewatering devices. The water from the channel is fed via a small header to either a POMp™ Degasser or to a process pump.

The open design of the POMlock™ M allows the machine tender to clearly observe the operation of each suction box and thereby control dewatering.  Any build-up of dirt in the reservoirs is prevented by the bottom discharge.  With the POMlock™ M, smaller diameter dropleg pipes can be used.The pattern and volume of flow in the channel is stable, and the discharge is fed via a small header to the POMp™ Degasser or a pump. 

POMlock™ S is a modified POMlock™ C for use when building height is not sufficient for a normal dropleg.It also provides process suction on paper machines that do not have basements beneath them. By placing the POMlock™ under vacuum, the vacuum level in the suction boxes can be made independent of the atmospheric head. The CycloPipe™ is connected to the last suction box, which is generally operated with the highest vacuum.

Compact POM wet end technology:  Simply less.  Simply better.