Česky English По-русски

Machines

Pages: 1 | 2

High-pressure (closed) headbox runs with an air cushion and with rectifier rolls. It is used particularly on paper machines intended for a wide assortment of papers with diverse

Hydraulic headbox operates without air cushion and is fully filled with paper stock. It has some elements as classical high pressurized closed headbox.

The wire part of the PM serves for stock dewatering and consequently it transforms the stock into the “paper sheet“. The stock goes out of the headbox on a longitudinal

Crescent former serves as wire part for production of tissue papers with substance weight from 12 g/m2 on the wire (i.e. 14 g/m2 on the reel) at design speed up to 1.500 m/min.

Two - wire formers are used for more intensive stock dewatering and improving of paper parameters. Top former with endless wire is used to be installed above the bottom wire board with the endless wire.

Shaker is used for better felting of paper and for reaching of higher paper strength. Fibres coming on the wire from headbox are formed in longitudinal machine axis

Are designed for paper machines wires and felts run regulation or for a contingent regulation of other endless belts.

An optimal wire tension is one of basic prerequisites for an efficient PM wire part operation. An insufficiently stretched wire may bring a driving roll slippage followed

Low-pressure shower NOT is used for wires and felts cleaning and conditioning. They influence considerably the felt and screen life time, PM productivity, the quality of paper produced and the energy consumption.

High-pressure oscillating showers VOT with an electromechanical oscillation are used for high-pressure cleaning of wires and felts in paper machines with clear water under a pressure of 1,0 to 5,0 MPa.

Threading and trimming water jet is designed for trimming of paper web edges in PM wire part and for making a wedge-shaped paper web end for its threading in PM press and drying parts.

Coach agitators CA are designed for continuous mixing, pulping of paper broke and trimms from paper machine. Coach agitator is usually located under coach roll and on the beginning of the press part.

Horizontal broke pulpers HB are designed for pulping of wet and dry broke from paper and cardboard machines. It is comprised of tank and horizontally arranged pulping elements with a bedding and driving unit.

Rolls are dynamically balanced for required constructional speed. For long and thin rolls we provide a recently developed method of dynamic balancing in more levels.

The paper pressing is the last process to extract mechanically the water in the PM line. There is a wide range of presses (having one or more pressing zones) used for such a purpose which when optimally combined create an adequate press part.

Press with extended pressing zone JUMBO is delivered in two-roll design with down pressure of top press rolls induced hydraulically. It is usually used as the last press before the input part of the PM drying part.

Shoe press is located in the PM press part. It belongs to the group of presses with an extended pressing zone. The load is controlled from 0 kN/m to the maximum load.

Suction tube is used for a mechanical or chemical cleaning of PM wires and felts. By means of an underpressure, it sucks out the given cleaning medium (water, chemicals) that is consequently led through suction piping outside the paper machine.

Stretching devices EDS, PDS, HDS are intended for stretching of felts in the press part and drying fabric in the PM drying part.

Doctors are used for cleaning of rolls and cylinders in paper machines. Each doctor is specially constructed to fit an actual application in a PM so that it meets all given requirements – mainly the roll cleaning.



Pages: 1 | 2