Pulp cooking: Put the papermaking raw materials and cooking liquor into the digester, and then heat it with steam to remove the non-cellulose part of the fibrous material. The black liquor boiled in papermaking has high calorific value and good flammability. It is an important self-generating energy source in the paper industry.Propellent heat exchanger products can be used as a series of key energy-saving equipment in the black liquor concentration process, and it is an important measure to improve the energy utilization of paper mills.

    Heat exchangers are an important part of pulp and paper mills. With the help of heat exchangers, paper mills have benefited a lot from energy conservation.There are many processes in paper mills that can use heat exchangers. Especially for the plate heat exchanger, it occupies a small space, has high heat recovery efficiency, convenient maintenance, and low cost.

    Essentially, the following processes of the paper processing line are all done with the help of heat exchangers: starting with wood pulp processing and refining, and then going to bleaching and cleaning before the paper is formed. Specifically, plate heat exchangers are used to heat the liquid used to make pulp from wood, a process that involves chemical compounds that pull the wood structure apart, leaving behind a viscous substance that can form paper after more processing. Secondary processing involves stirring or drying the pulp, which is a process that is also heated by a plate heat exchanger. After reaching the desired color, the pulp is turned into paper by a paper machine, and the paper machine weaves the pulp into a thin paper web that forms a paper sheet. During this time all moisture is removed and some type of blower is used to dry it.

    A part of the paper machine also uses a heat exchanger called a waste heat recovery system, which is one of the ways that the heat exchanger can save energy, resources and money for the paper mill. Waste heat recovery is a waste heat recovery system. It can absorb heat and moisture in the room for reuse without putting more pressure on the energy that normally provides air and water for paper processing.