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Transformation process waste paper deinking waste paper deinking process design Xingtai perfect crystal of Health Technology
Information Name: | Transformation process waste paper deinking waste paper deinking process design Xingtai perfect crystal of Health Technology |
Published: | 2012-12-19 |
Validity: | 90 |
Specifications: | No |
Quantity: | 1.00 |
Price Description: | |
Detailed Product Description: | Waste paper deinking process to transform waste paper deinking process design Xingtai crystal raw skillful and the latest mixed waste paper deinking process design process characteristics: shorter than other deinking process, pulp, high whiteness, extremely low dust, high bleaching efficiency, chemical Drug use less. The process is simple, and the old production line upgrading (multiple devices generally must be stopped), equipment investment is low. The key equipment very mature, simple operation, almost trouble-free, integrated power consumption is relatively low, the device long service life. Pulp brightness can be adjustable between 80 to 95 degrees. Less fiber degradation, low pollutant generation, pulp and high yield. Efficient deinking water purification measures effectively remove the ink and anionic species, the vast majority of small fibers and fillers remain in the pulp, only add some water or paper machine white water system water closed loop. Wide adaptability of waste paper, not only the removal of office waste ink can also allow a lot of waste newspapers and a small amount of kraft paper. The deinking line basic objectives: controllable particle size requirements and grading and fiber separation from the fiber stripped of impurities and ink. Pulp dust degree of the pulp ISO whiteness of 90% ± 2 <20ppm t pulp water consumption (or white) <20m3 pulper Objective: low temperature, neutral soft pulping process, so that fibrosis of 50% to 60% of waste paper , the complete peeling books gum, plastic coating, staples and other impurities. Avoid ink dispersed emulsion and reduce the pollution of the fiber, reduce wastewater CODGr generation. To avoid degradation of the fibers, improved pulp rate. Priority separation easy things first: The a concentrated screening and purification technology, separating the larger impurities. Squeeze a high concentration in the pulp effluent, to reduce the consumption of further contamination of pulp and bleaching drugs. The complete separation of the ink with the fiber to using reasonable deinking chemical process, effective thermal force and shearing force to the ink to a suitable particle size from the fibers peeled (ink particle size controllability). The completion of the full use of the high temperature of the deinking step and effectively mixed waste paper pulp bleached (savings of more than 25% of the bleaching drugs). Further remove stickies H <0.12mm slotted screen to remove coarse fiber bundle longer chemical fiber, a plastic sheet, and the particle diameter larger adhesive like. Production Practice has proved that screening is the best equipment for removal of stickies, remove the ink negligible role, do not try to use a fine sieve to remove the ink. Peeling of non-contact printing ink toner ink and other non-pressure printing inks and other "hard ink" in the pulping wasting a lot of power, only so that they become the adhesion of the fiber of large particles, due to their flat shape is difficult to be screened, purification, such as flotation and washing method is effectively removed. Targeted for removal "hard ink after the pulping process, the production run is ideal. 's Role can not be ignored purification Cleaner to remove ink particles due to particle size, hydrophilic, density and other factors, it is difficult other equipment to remove, so pay special attention to the conditions of heavy Cleaner. "The hard ink" Usually density greater than water, and if the particle size is appropriate can be efficiently removed by Cleaner. Flotation deinking: ink particle size, the type of deinking agents, flotation concentration, white water systems and other factors, to be adjusted according to actual conditions in order to give full play to the role of flotation. Add some kind of flotation aids, prominent system water purification capacity, can significantly improve the whiteness, you can also increase the pulp rate. Washing deinking: washing may improve the whiteness of 8% ~ 12% (ISO). Process conditions appropriate, aqueous flexographic ink particles can be used to washing method is very effective to remove. The countercurrent washing extract the high concentration wastewater can reduce water consumption, to alleviate wastewater treatment load. Pulp bleaching, bleaching reaction: in high concentration, high pressure, high temperature conditions to be completed in the shortest time to reduce the degradation of the fibers and other pollutants, not only to improve the pulp rate can also reduce the generation of secondary stickies. The whiteness of the pulp can be between 80 ~ 95 (ISO) arbitrarily adjusted. |
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Copyright © GuangDong ICP No. 10089450, Xingtai City, Crystal Health Products Co., Ltd. microcrystalline All rights reserved.
Technical support: ShenZhen AllWays Technology Development Co., Ltd.
AllSources Network's Disclaimer: The legitimacy of the enterprise information does not undertake any guarantee responsibility
You are the 32755 visitor
Copyright © GuangDong ICP No. 10089450, Xingtai City, Crystal Health Products Co., Ltd. microcrystalline All rights reserved.
Technical support: ShenZhen AllWays Technology Development Co., Ltd.
AllSources Network's Disclaimer: The legitimacy of the enterprise information does not undertake any guarantee responsibility