How to make pulp in small paper machine can achieve good results

How to make pulp in a small paper machine is the equipment used in the process of separating plant raw materials into fibers. The pulping method can be divided into chemical method, mechanical method and chemical mechanical method. The corresponding pulping equipment includes digester, wood mill, heat mill, pulp washer, bleaching machine, beater and waste liquid recovery equipment.

After the wood chips are preheated by steam, the slurry that is grinded under high pressure is called hot wood chip grinding wood pulp. The machine for making hot wood chip grinding wood pulp is a hot mill. The heat mill consumes a lot of power, so it is sufficient. The use of heat energy in the refining process is the key issue of the thermal grinder; the pulp washer is a mechanical device that separates the cooked pulp and black liquor. According to the black liquor extraction rate, there are two types of high-concentration and low-concentration extraction.

The purpose of pulp bleaching is to remove the lignin and pigment remaining in the pulp after cooking, improve the whiteness of the pulp, and make the pulp have a white color. The bleaching machine is a kind of bleaching equipment commonly used. It consists of bleaching tank screw propeller, drum washing and other components. The slurry and bleach are placed in the pool and wash water is continuously added, circulating in the pool with the help of the screw propeller to complete the process of mixing and chemical reaction. The water with bleaching products and residual bleach is discharged through the inner cavity of the washing drum, so that white pulp is obtained.