Paper machinery industry definition and classification

2021-06-15

The industry definition of paper machinery refers to machinery that includes the preparation of raw materials, pulping, papermaking, until the finished product is made into a reel or flat sheet, and the processing of paper and board. For more details, the following is the definition and classification of the paper machinery industry.

Type of paper making machinery:
The paper machine has the long net multi-cylinder paper machine, the round net paper machine and so on. According to the different paper products, the paper machine types are different.
Type of equipment:
Preparation equipment
It is the equipment for pretreatment and processing of papermaking raw materials before cooking or grinding, according to the requirements of cooking or grinding technology. It is divided into non-wood fiber material preparation equipment and wood fiber material preparation equipment. The former has grass cutting machine, cutting reed machine and sugarcane remove pulp machine to wait, the latter has peeling machine, chipper machine to wait.
Chipper is the production of wood pulp needed to cut logs into a certain specification of the machine, divided into disc and drum two types; The cooking device is the equipment that dissolves the lignin in the raw material of papermaking into cooking liquid and separates the raw material of papermaking into fiber. It is divided into intermittent type and continuous type. Wood mill is the production of wood pulp equipment, according to the production mode can be divided into intermittent and continuous type of two categories, according to the log pressure mode can be divided into hydraulic pressure type and mechanical pressure type of two categories;
Pulping equipment
Equipment used in the process of separating plant materials into fibers. Pulping methods can be divided into chemical method, mechanical method and chemical mechanical method. The corresponding pulping equipment includes steamer, wood mill, hot mill, pulping machine, pulping machine, pulping machine and waste liquid recovery equipment, etc.
The pulp of wood slices preheated by steam and then ground at high pressure is called hot wood pulp. The machine that makes hot wood pulp is hot mill. Hot mill consumes a lot of power, so making full use of the heat energy in the process of grinding is the key problem of hot mill. Pulp washing machine is the mechanical equipment that separates the pulp and black liquor after cooking. According to the extraction rate of black liquor, there are two categories of high concentration and low concentration extraction.
An eye for pulp bleaching


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