What are the working principles of paper machines
The main reason is that after the raw slurry comes out of the headbox, it is evenly spread on the mesh cloth, which is supported and driven by the breast roll and the couch roll. There is a water scraper (before the waterline) and a vacuum suction tank (after the waterline) under the mesh cloth, which is collectively referred to as the mesh part; Then there is the press section, which includes several pairs of press rolls to squeeze up and down for dehydration; The end of sub-pressing is drying. There are dozens of drying cylinders and the guide roller can adjust the size of the blanket wrap angle to adjust the contact area between the drying cylinder and the wet paper; Then to the glue roller, it is usually a pair, and several pairs of drying cylinders must be installed at the back for drying and dehydration; The calender roll is the last procedure. After the upper and lower surfaces are calendered, the paper can be rolled into the required finished paper.
The working principle of the paper machine conforms to the requirements of paper making. The pulp water suspension is dehydrated through the filter screen, the mechanical extrusion dehydration drying and other processes. The paper machine includes three main parts, namely, the completion process, the press, and the drying, and is equipped with necessary finishing, coiling and transmission devices, as well as auxiliary systems such as pulp supply, pulp and white water circulation, vacuum, ventilation and exhaust, paper loss treatment lubrication, and automatic control The optimal working speed of the width of the copper mesh means that the modern paper machine has a width of 11m, a working speed of 1000m/min, a paper output of hundreds of tons, and a whole machine weight of 1000 tons and more than 100 meters. Developing countries and some special paper products use a relatively large paper machine with a width of 1-3m, and a working speed of tens of meters to 200 meters per hour.
The paper machine is directly dried and ironed with raw pulp. Cooking. disinfect Then it is OK to cut with more dimensions. Paper machine running, feeding - start white water pump - start dispersant - change hanging knife - roll waste paper commissioning.
