Bobbin paper production technology

Abstract

The invention discloses a bobbin paper production technology which comprises the following steps: (1) papermaking reclaimed pulp undergoes high-concentration degritting and disk milling and then is placed into a coarse pulp tank; (2) waste paper is crushed by a pulper, and crushed paper pulp undergoes high-concentration degritting and then is placed into the coarse pulp tank; (3) coarse pulp in the coarse pulp tank is separated by a defibrator; (4) medium-concentration degritting is carried out; (5) fine screening and concentration are carried out; (6) the pulp is placed into a concentration tank; (7) the pulp undergoes disk mill and then is placed into a finished product tank; (8) the pulp is delivered to a machine chest, and paper mill sludge is added into the machine chest; (9) drifting is carried out through a drifting system, and a water repellent agent is added; (10) the raw material is conveyed to a net part of a paper machine, a dry strength agent is added into the net part, and starch is sprayed; (11) the raw material is processed by a press part of the paper machine; (12) the raw material is processed by a drying part of the paper machine; and (13) finished paper is reeled. According to the invention, reclaimed pulp and paper mill sludge which are generated during the papermaking process are fully utilized for production of bobbin paper. Thus, resources are saved; cost is reduced; and environmental pollution is also avoided.

Description

technical field [0001] The invention relates to a bobbin paper production process. Background technique [0002] Now the papermaking process is more and more advanced, but how to realize waste utilization in the papermaking process has always been a long-term topic. [0003] For example, the Chinese invention patent with the publication number CN101413225 disclosed a method for producing cassava dregs, distiller's dregs, corrugated paper, and bobbin paper on April 22, 2009. , remove impurities, retain plant fibers, mix with waste paper pulp in a ratio of 1-7:3-9, add appropriate amount of papermaking additives, and produce corrugated paper and bobbin paper. It makes full use of production waste—cassava dregs and vinasse dregs to produce high-quality and cheap corrugated paper and bobbin paper. The production raw materials are sufficient, the cost is low, and it has good social and environmental benefits. [0004] But at the same time, a large amount of recycled pulp and pa...

AI Technical Summary

Problems solved by technology

[0004] But at the same time, a large amount of recycled pulp and papermaking sludge produced in the papermaking process has not been effectively utilized, which not only puts a lot of pressure on the environment, but also wastes resources.