De-Inking
Cell
The purpose of de- inking is to remove the printing inks, stickies that
might effect the paper making process. In a de-inking process ink is
detached from fiber. Flotation technology provides high yield of fibers
and simple handling with maximum operating reliability.
Principle of Operation
The JMC De- inking cell consists of number of cells in series with
elliptical cross section with a baffle extending over the entire length
to separate suspension chamber from the foam collecting chamber. Air (at
the atmospheric pressure) and pulp stock is introduced into the cell
through injectors. Flow through nozzles generates vacuum which
generators micro turbulence resulting in widely ranging bubble sizes
enabling efficient removal of ink of particles. The enhances brightness
to a high degree and reduces dirt specks and stickies. The injectors
optimize the quantity of the air injected and the size of the bubbles
generated.
The pulp stock freed ink is pumped from the bottom of one cell to the
next cell. The ink laden foam overflows to the foam chamber with the
help of motorized paddle. Flotation process is operated in a continuous
mode and helps to remove ink particles efficiency. Since the cells are
interconnected level is controlled through level transmitter on entire
flotation machine.
The primary floatation stage ensures highest possible stock purity and
the secondary stage optimize yield. A Dearator cyclone removes air from
the stock and usable fibers are recovered from the foam.
Salient Features
manufacturer
& exporter of PULP, PAPER MILL & CEMENT MACHINERY
