Five Simple Solutions for Optimizing the Press Section

The Press Felts play an important role in the paper web after the forming section, giving it smoothness while transporting it to the drying section. Depending on their position on the paper machine, they can be classified as wet felts, top felts and dryer felts.

In addition to removing the most moisture from all press felts, the pick-up felts must pick up delicate sheets from the forming fabric and guide them into the press section. Problems in the pick-up area often result in breakage of the press section.

How can you prevent breaks in the press section of your paper machine? As a Press Felts manufacture, I will share with you.

Press Felts

Press Felts

Increase the moisture content of the felt before the pick-up point.

Water will smooth the paper side of the blanket and improve the tackiness of the blanket. The additional water will increase the water pressure in the first press section. This can lead to better dewatering, but if taken to the extreme, it can also lead to pressing - about which I will write next time.

评论

发表评论

此博客中的热门博文

Define the ideal material and fiber

图片
  1. Define the ideal material and fiber ▸Polyester monofilament filter cloth Made of high-strength, low-stretch polyester monofilaments. Smooth surface for easy cake discharge, acid-resistant, wear-resistant and high- The normal use temperature is less than 130 °C (266 °F), and the instantaneous use temperature is 150 °C (302 °F). The normal use temperature is less than 130 °C (266 °F), and the instantaneous use temperature is 150 °C (302 °F). ▸Polyester multifilament filter cloth The series of filter cloth is weaving by the polyester filament in multi-strand. It is acid-resistant, high strength, better intercept ability for fine It is acid-resistant, high strength, better intercept ability for fine particles, but more difficult to clean than monofilament due to the multi-fiber. The normal working temperature is no more than 130 °C (266 °F), and the instantaneous working temperature is 150 °C (302 °F). ▸Polypropylene (PP) monofilament filter cloth Made of polypropylene high-strength m
阅读全文

What is PMC?

图片
The forming fabric of Paper Machine Clothing (PMC) plays a critical role in dewatering and forming the pulp, supporting the sheet as it is formed, and transporting it to the next press section during the paper-making process. It consists of one or two endless fabric loops. The primary functions of the forming fabric are to allow water removed from the paper to flow through the fabric; to support, hold and form the sheet; and to transport the paper from the headbox to the press section. The top surface of the   forming fabric acts as a filter cloth , forming a base for the fibers to be deposited to form a fiber mat. The geometry of the forming fabric surface contributes to sheet performance, including line marks, linting and sheet smoothness. Better support improves the quality of the fiber mat and the retention of fines, fillers and fibers on the support surface of the mat.   Functions The bottom surface of the formed web contributes to the characteristics of the conveyor belt. Most li
阅读全文

What materials are available for the conveyor belt?

图片
  Conveyor Belt Materials They must be durable, long-lasting and resistant to a wide range of temperatures, humidity and chemicals. There are five main materials used for conveyor belts: thermoplastics, metal, rubber, fabric and leather. Plastics include polyester, polyvinyl chloride, silicone and polyethylene. Metals are stainless steel and carbon steel, and fabric materials are canvas or cotton. The most popular material is rubber compound because it is flexible, durable, smooth and seamless. It also does not have any holes or openings. For added strength, many belt materials contain additives, including fabric, steel, polyester or fibreglass. Many flat belts are actually made up of a core material and a cover. These belts are part of many different types of conveyor, including trough, inclined, horizontal, food grade and overhead conveyors, but they are not used in chain, pneumatic or screw conveyors. Choosing the correct belt material is the most important specification involved in
阅读全文