qinyang anshun paper machinery co., ltd

　　quality is an essential step in papermaking, as it is the equipment used to separate plant raw materials into fibers. the pulping methods of small paper machines can be divided into three types: chemical method, mechanical method, and chemical mechanical method. the corresponding pulping equipment includes digesters, wood mills, thermal mills, pulp washers, bleachers, beaters, and waste liquid recovery equipment. and how can the equipment produce better pulp results?

　　the pulp produced by pre heating wood slices with steam and then grinding them under high pressure is called hot wood chip ground wood pulp. the machine used to manufacture hot wood chip ground wood pulp is a thermal mill, which consumes a lot of electricity. therefore, fully utilizing the heat energy during the grinding process is the key problem of the thermal mill; a pulp washing machine is a mechanical device that separates digested pulp from black liquor. according to the extraction rate of black liquor, it can be divided into two categories: high concentration and low concentration extraction.

　　the purpose of pulp bleaching is to remove residual lignin and pigments from the pulp after cooking, improve the whiteness of the pulp, and give the pulp a clean white color. bleaching machine is a widely used bleaching equipment, which consists of components such as a spiral propeller of the bleaching pool and a washing drum. the slurry and bleach are placed in the pool and continuously added with washing water. with the help of a screw propeller, they circulate and flow in the pool, completing the process of mixing and chemical reactions. the water containing bleach products and residual bleach is discharged through the inner chamber of the washing drum, resulting in a clean white pulp.