A pulp water recycling process in papermaking
A slurry water and process technology, applied in the direction of papermaking, paper machine, textile and papermaking, etc., can solve the problems of high cost, waste of slurry, and increase of pulp consumption, so as to save pulp consumption, save production cost, avoid The effect of slurry loss
Active Publication Date: 2018-05-08
柳秋吉
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Problems solved by technology
[0003] The traditional papermaking wastewater treatment generally adopts the terminal treatment method, which collects the wastewater generated in the papermaking production together, and treats the papermaking wastewater at the front end of the main outlet, so that the water quality meets the papermaking water standard and then sends it to the papermaking process for reuse. Thereby reducing the amount of clean water, reducing the amount of waste water discharge and the content of pollutants in the waste water, but the quality of the white water after treatment is poor, and it will affect the quality of the paper produced when it is reused. This method is passive and costly to realize. In the process, waste water will be generated, and the pulp in the waste water has not been effectively used, wasting the pulp and increasing the pulp consumption
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[0023] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0024] as attached Figure 1-3 Shown is a slurry water recycling process in papermaking. In the paper machine production, the pulp forming process is completed by the forming part. In the forming process, the pulp sent by the flow delivery system needs to be uniformly distributed The pulp is sprayed onto the felt and sent to the press section. After the pulp is pressed and formed, the removed felt is rotated to the forming section and the pulp is re-distributed by the hydraulic headbox. The spraying and recycling of the pulp produced in the paper machine are both done in the forming process. During the production process of the paper machine, the white water with pulp generated in the forming process is transported to the 1# white water pool, and the white water with pulp generated is recycled to the 1# white water pool 3, and returns to the pulp pump pit 2 ...
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The invention discloses a cyclic utilization technology for seriflux in paper making. In the production course of a paper making machine, white water with pulp, produced in a shaping process, is transported to a 1# white water pond, and the white water with pulp in the 1# white water pond reflows to a pulp pump sump through a passage for cyclic utilization. According to the cyclic utilization technology disclosed by the invention, the water with pulp and the water without pulp are in separated treatment, the white water with pulp is recovered into the 1# white water pond and is directly fed to the pulp pump sump for cyclic utilization, pulp in the white water with pulp is recovered and reutilized, pulp materials are prevented from running off, the pulp in waste water is directly and cyclically utilized, pulp consumption is reduced by 3-4%, and a large amount of production cost is saved.
Description
technical field [0001] The invention relates to the technical field of papermaking wastewater treatment, in particular to a pulp water recycling process in papermaking. Background technique [0002] Papermaking white water mainly refers to the wastewater discharged from the papermaking system of the paper machine in the paper mill. The papermaking white water contains a large amount of fine fibers, sizing agents, preservatives, reinforcing agents and other sundries. The paper machine consumes a lot of water and discharges a lot of white water. Since the paper-making white water contains many impurities, it cannot be directly reused for production. The paper mill must treat and reuse the white water to reduce environmental pollution and save water resources. [0003] The traditional papermaking wastewater treatment generally adopts the terminal treatment method, which collects the wastewater generated in the papermaking production together, and treats the papermaking wastewat...
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IPC IPC(8): D21F1/66C02F1/00
CPCC02F1/00C02F2103/28D21F1/66
Inventor 柳秋吉
Owner 柳秋吉