High-Performance and advanced pressure screen for papermaking industry
The upflow pressure screen is a highly efficient and energy-saving pulp screening equipment, widely used in the fields of waste paper pulping, pulp screening before paper machines and recycled pulp treatment. Its core advantage lies in achieving efficient impurity removal and fiber grading through a unique upflow structure and pressure difference screening principle, significantly enhancing the quality of the slurry and production efficiency.
Core structure
Screen drum: Made of highly wear-resistant materials (such as stainless steel or hard chrome-plated), with a screen gap width of 0.15-0.5mm, ensuring efficient screening and long service life.
Rotor: The specially designed rotor structure generates pulse cleaning force through high-speed rotation to prevent the screen gaps from being clogged.
Mechanical seal: Made of special graphite material, it has excellent sealing performance and prevents slurry leakage.
Shell and pipeline: The cylinder is designed as an integrated unit with the slurry inlet pipe, slurry outlet pipe and slag discharge pipe to ensure smooth slurry flow.




The refiner of a paper machine is the core equipment in the pulp and paper making process. It is used to grind fibrous raw materials (such as wood chips, bamboo, waste paper, etc.) into pulp that meets the requirements of paper making through mechanical action. Its core function is to adjust the length, fineness and broomization degree of the fibers, optimize the pulp performance, and meet the production requirements of different paper varieties (such as cultural paper, packaging paper, specialty paper, etc.).
The paper machine propeller is a key device in the paper making production line, used to promote the efficient flow of pulp in the paper machine's conveying system, ensuring the uniform distribution of pulp and improving the quality of paper and production efficiency. Its core functions include: slurry transportation: providing stable power, overcoming pipeline resistance, and achieving continuous slurry transportation. Mixing and dispersion: Through the design of the propeller blades, it promotes the thorough mixing of fibers and additives to prevent caking. Pressure control: Maintain the stability of the system pressure to ensure that the pulp enters the mesh section of the paper machine at the set flow rate.
Technical parameter |
Equipment |
Upflow pressure screen |
Screening area |
0.35-5 m2 |
Output (Volume) |
Customized |
Pulp concentration |
0.8-3% |
Pulp feeding pressure |
0.15-0.35mpa |
Screen seam specification |
0.15-0.45mm |
Motor power |
22-132kw |





