Kadant Lamort

Kadant Lamort, Societe Par Actions Simplifiee

Stephan Pottier

Alain Serres

Alain Fernandez De Grado

Xavier Lacour

A device for separating the constituents of a fluid medium includes an element for separating the constituents, helping to define, upstream and/or downstream from the separation element, a closed chamber, to which at least one conduit is connected. The conduit includes at least one activatable sealing device, the activation of which is capable of at least partially closing and opening the conduit. The device also includes a controller for the activation of the sealing device, controlling the closing and opening, at least partially, of the conduit cyclically, at a frequency greater than 0.008 Hz.

Separation device

The serial multistage flotation process for eliminating hydrophobic particles from a stream of materials to be treated includes a step of introducing into one stage a layer of materials to be treated, originating either from a higher state or directly from the inlet of the system. There is an aeration step in which air extracted from the lower stages is mixed, diffused and dispersed in the layer of materials to be treated then escapes to the higher stage or to a foam discharge zone. After the aeration step, there is a deaeration step in which air is no longer introduced into the layer of materials to be treated before the departure thereof from one stage and that enables the discharge of the dispersed air to the higher stages or in the case of the highest stage to foam discharge zone. There is also a step of recovering the deaerated material.

Flotation process and facility for the implementation thereof

The cell includes an enclosure having, at the top, a main inlet for the pulp to be de-inked and, at the bottom, a main outlet for the de-inked pulp. The pulp from the top to the bottom, passes through successive stages provided with bubble passageways introduced into the lower portion of the enclosure, and the bubbles rise to the top, to form a foam. The cell includes pulp a guiding mechanism forming a guiding path and in which the bubble passageways are provided for. The guiding mechanisms are, on their lower face, inclined upwards in order to guide the bubbles towards the bubble passageways.

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Frignicourt, France

Stephan Pottier