Detailed Product Description

Paper machine

ZNS Series Twin-wire press

Application

ZNS Series Double Nip Double Wire Press is suitable for washing and thickening of all kinds of pulp or stock in pulping and papermaking processes. It can help reach higher thickening ratio and stock outlet consistency of 28~35%. It is widely used in dispersion system of the waste paper stock, bleaching system of the mechanical pulp with high consistency and the refining system of coarse rejects, etc. It can also be used in the forming section of pulp board machine as well as the washing and thickening of mechanical pulp and straw pulp with low freeness.

Design Fseatures:

By applying the dehydration principle of double wedge-shaped wires, the dewatering filter plate and double pressing roll unit combine together to dewater. The length of nip and pressure difference are increased gradually, which results in the high thickening ratio and the stable outlet consistency kept between 28~35%.

The wire speed can be adjusted automatically so theat the dewatering amount and outlet consistency can also be adjusted. All of these ensure the stable outlet consistency. It can be used in producing all kinds of stock such as waste paper stock, chemical pulp and mechanical pulp.

The two dewatering section consists of twin-wire wedged forming dewatering filter plate and double pressing roll unit. Its creative structure results in lower energy consumption during thickening (no vacuum is needed).

The press is controlled by PLC so as to keep the system operating more stably.

The loss of fiber can be reduced in white water.