In the process of paper manufacturing, the efficiency and the quality are important drivers of success. A shoe press in a paper machine plays a crucial role in enhancing the quality of the final paper. Just like refining, screening, and other processes and machines, the shoe press in paper machine is an important part of maintaining and increasing the paper product quality with lower operational cost and increased sustainability.
In this blog, we will discuss the shoe press technology, its benefits, the working principle of shoe press in paper machine, and the top manufacturers like Parason, Andritz, Valmet, Voith, etc. Let’s dive into the information.
What is Shoe Press Technology?
Shoe press is an innovative solution used in the press section of paper paper-making process for efficient dewatering. It is used in the paper machine during the pressing section before it enters the drying stage.
Unlike conventional press systems that use a rotating cylinder, the shoe press paper machine uses an extended nip with a flexible belt, allowing for a larger pressing area. This enhances the dewatering process, leading to higher efficiency, better sheet quality, and energy savings.
Working Principle of Shoe Press in Paper Machine
The core feature of the shoe press is dewatering. Unlike the traditional roll presses the shoe press uses a flexible belt combined with a stationary shoe. It has an extended nip and the shoe creates an elongated pressing zone, increasing the time the paper web spends under the pressure.
The extended nip helps to provide a much larger surface area for pressing and also helps in applying more uniform pressure across the web. This gentle but sustained pressure helps to remove more water without crushing the paper fibers and preserving the paper’s bulk and strength.
By increasing the dewatering capacity and applying uniform pressure, the shoe press results in a higher-quality paper sheet. The process maintains the sheet's integrity, enhances its smoothness, and increases its strength. Since the pressing is less aggressive, the web experiences less damage, leading to better final product properties.
The efficient water removal achieved by the shoe press reduces the drying load in the subsequent drying section of the paper machine. With less water to evaporate, the energy required for drying the paper is significantly reduced, leading to lower operational costs and improved sustainability.
Key Components:
- Hydraulic Shoe: The stationary shoe that applies the pressure uniformly over the extended nip area.
- Flexible Belt/Blanket: This belt runs between the paper web and the shoe, transmitting the pressure from the shoe to the paper.
- Press Roll: The rotating roll against which the paper web is pressed by the shoe.
Benefits of Shoe Press in Paper Machine
- Higher Efficiency
- Improved Paper Strength
- Better Surface Quality
- Extended Clothing Life
- Sustainability and Energy Savings
Leading Manufacturers of Shoe Press for Paper Making
When looking for the manufacturer of shoe presses for paper machines, you need to look at the top paper machine manufacturers in the world. The list of the top paper machine manufacturers who are leading manufacturers of shoe press & paper machine include:
- Parason
- Andritz
- Valmet
- Voith
If you need more information about these manufacturers or the cost of the manufacturing shoe press or paper machine, you can contact us and we will guide you to complete your requirements regarding paper machines. Contact us today.
Conclusion
In summary, the shoe press technology enhances the pressing process by providing a larger contact area, applying more controlled pressure, and removing more water from the paper web, all while improving paper quality and reducing energy consumption. It represents a significant advancement in the papermaking process, especially for high-speed and high-quality paper production.
With leading companies such as Parason, Andritz, Valmet, and Voith driving innovation, the future of paper manufacturing looks brighter than ever. Mills looking to improve production rates, reduce costs, and meet environmental goals should consider investing in modern shoe press systems for their paper machines.
