Filtration and Screening Technologies in the Pulp and Paper Industry

The pulp and paper industry is an important industry that transforms wood and plant fibers into paper and related products, mainly including raw material preparation, pulping, paper manufacturing, and post-processing stages. The industry processes raw materials into pulp through chemical and mechanical methods, which are then formed, pressed, and dried on a paper machine to ultimately produce various types of paper. With the increasing awareness of environmental protection, the industry is gradually adopting sustainable production methods, emphasizing resource recycling and reducing environmental impact.

Common issues encountered during the filtration and screening processes in pulp and paper production include fiber clogging, incomplete removal of impurities, and reduced screening efficiency. Fiber clogging can lead to decreased fluidity of the pulp and reduced production efficiency, while incomplete removal of impurities may affect the quality of the paper.

• Fiber clogging
• Screen wear
• Pollution of the environment
• High energy consumption, increasing production costs

• Raw material processing. Raw materials such as wood and waste paper need to undergo thorough water treatment to remove impurities and improve fiber quality. Through advanced filtration and screening technologies, bark and other impurities can be effectively removed from the wood, ensuring the purity of the pulp.
• Wastewater recovery. The pulp and paper process generates a large amount of wastewater, which contains high concentrations of organic matter and suspended solids. Through effective treatment at wastewater treatment plants, this wastewater can be purified, recovering reusable water resources, reducing production costs, and minimizing environmental pollution.
• Process water treatment. The quality of process water directly affects the quality of the product during paper production. By adopting efficient water treatment technologies, such as reverse osmosis and ultraviolet disinfection, high-quality process water can be provided for the manufacturing industry, ensuring the smooth operation of the production process.
• Ecological restoration. The pulp and paper industry may impact the surrounding ecological environment during production. Through water treatment technologies, the water quality of surrounding bodies can be improved, restoring the ecological environment and protecting biodiversity.
• Resource recycling. The pulp and paper industry should actively explore models for resource recycling. By effectively processing waste paper and wastewater, we promote the circular economy development of paper production, maximize resource utilization, and reduce dependence on new resources.

Perforated Metal Sheet

Drilling Perforated Metal Plate

Sieving Bending Wedge Wire Screen

Wedge Wire Screen Cylinder

By optimizing the pulping and papermaking processes to enhance energy efficiency and raw material utilization, we can better reduce the environmental impact of production, promote sustainable development, ensure the quality and eco-friendliness of paper products, and create a greener production environment for the future.

• Improve product filtration accuracy
• Extend equipment lifespan
• Protect the environment
• Use efficient and energy-saving production equipment to reduce energy consumption

Metal Woven Mesh for the Pulp and Paper Industry

Spiral Squeeze Pulp Machine