vacuum drum washer pulp washer

Vacuum Drum Washer Working Principle & Operation Notes

The vacuum drum washer is a type of pulp washer which is widely applied in the pulp washing process of wood pulp and straw pulp. Its main function is to separate the pulp from the black liquor and wash out the residual substances such as alkali lignin produced during the pulp cooking process to purify

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chemical recovery for papermaking

Chemical Recovery In Papermaking Industry

With today’s increasingly high energy and chemical costs and stringent environmental regulations, the need for improved recovery of chemicals from the pulp and paper making process has become a critical economic factor in the industry. It is essential that mills maximize steam and power production capacity, reduce recirculating chemical dead loads, and minimize chemical losses.

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paper pulp and paper product

Pulp and Paper Manufacturing Process

Paper plays an important role in our daily life. It is one of the greatest inventions in human history. Paper can be made from pulp of wood, grass, waste paper or other materials. Paper manufacturing processes are as follows: The pulping process, it separates and cleans the fibers Refining process would be followed after the

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high quality paper pulp

How is paper pulp made

Paper is actually a multi-functional biomass product, which can be made of renewable woods, grass, rags, waste paper, and other materials. No matter which material is used for papermaking, the first step is always to dissolve the material into pulp. Modern pulp production is based on the best available technologies and concepts, creating more products

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How Much Do You Know About Paper Manufacturing Process

History of Paper Manufacturing Process Formed from wood pulp or plant fiber, the paper is chiefly used for written communication. The earliest paper was papyrus, made from reeds by the ancient Egyptians. Chinese paper was invented in the second century, probably by a Chinese court official named Cailun. His paper was made from tree barks

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The use of recycled fiber

The Notices on the Use of Recycled Fiber

The Notices on the Use of Recycled Fiber Wood is the main raw material for papermaking. However, with the decrease of forest resources and the increase of human demand, the wood problem has become more and more serious. To solve the dilemma from the lack of raw materials, the utilization of waste paper and fully

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