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1)  mainframe [英]['meɪnfreɪm]  [美]['men'frem]
2)  retention and drainage
助留助滤
1.
To optimize the wet end chemistry of paper machine for clean production ——The application of particulate retention and drainage system in high speed newsprint machine;
优化纸机湿部化学 实施清洁生产 微粒滤体系在高速新闻纸机上的应用
2.
A study on improving retention and drainage performance in papermaking with asbestos-free latex packing materials
无石棉胶乳密封材料抄造中改善滤性能的研究
3.
The product was applied in bleached reed pulp as retention and drainage aids.
动态滤水实验表明自制CPAM对漂白苇浆具有良好的滤作用。
3)  flocculation-sedimentation aids
助凝助沉
1.
Application of flocculation-sedimentation aids on the chemical treatment of wastewater containing nickel;
沉剂在含镍废水化学处理中的应用
4)  retention and drainage aid
助留助滤
1.
The application of P47 retention and drainage aid in offset papermaking could consistently improve the first pass retention, reduce the loses of fines and other chemical materials, speed up the water drainage from wire and press parts, lower the production cost and have a great potential for broad application.
使用P47剂抄造胶版印刷纸,能长效稳定提高网部单程留着率,减少纤维和其他化学原料的流失,加快网部和压榨部的滤水,减少生产能耗,降低生产成本,有广泛的推广应用价值。
2.
Through the optimization of retention and drainage aid system in paper machine,its runnability was increased,paper uniformity and strength were improved significantly with a breaking length gain of 0.
通过对纸机滤系统进行多次优化,提高了纸机的运行性能,成纸匀度和强度都得到很大改善,成纸裂断长提高约0。
5)  drainage and retention
助滤助留
1.
The effect of the copolymer on drainage and retention in corrugated paper pulp was investigated.
在单体质量比m(NVF)/m(DADMAC)=1下,探讨了单体总质量分数、引发剂质量分数、反应温度对聚合过程及产物特性粘度的影响;考察了产物在瓦楞纸浆中的留效果。
6)  retention and drainage aids
助留助滤
1.
In this paper,cationic polyacrylamide(self-made and imported)/modified bentonite system was used as retention and drainage aids for bleached wheat straw pulp.
本文主要研究此微粒体系对漂白麦草浆的滤作用 ,探讨CPAM、改性膨润土用量对滤效果的影响 ,并结合纸页的扫描电镜初步探讨微粒滤的机理。
2.
This paper researched the influence of amphoteric starch, CPAM and CPAM/BT retention and drainage aids systems on printability of reproduced newsprint.
研究了两性淀粉、阳离子聚丙烯酰胺(CPAM)、CPAM/膨润土3种滤体系对再生新闻纸印刷性能的影响。
补充资料:[国外糖业技术]立式连续助晶器

 


    (一)概 述 

    随着糖厂规模的不断扩大,原来煮糖车间显得比较拥挤,为了充分利用现有厂房空间,国外许多糖厂采用了立式助晶器(见图1)。 

    立式助晶器的单槽容量分100立方米和150立方米两种,当容量为150立方米时,直径约4.5米、高10米,中间有一空心管式搅拌器轴,上面安装若干层搅拌桨:在相邻两层桨叶间,装有蛇管式热交换器(附图),热交换器相邻各层互相串联,管中通冷却水,冷却用水量和温度,按糖膏助晶的要求确定;糖膏从上面进下面排出,冷却水从下方进上方排出,相互逆向流动;连续助晶器的相邻槽体间,用糖膏泵(ROTA)输送糖膏。 

    (二)设备优点 

    1、容量可以做得较大,占地面积小。 

    2、可直接安放在水泥基础上,安装比较简单;加上保温外壳后可安装在室外。 

    3、糖膏和冷却水逆向流动,温度下降均匀,助晶效果比较理想。 

    (三)工艺特点 

    经立式助晶器C(参见图2)助晶后之糖膏,1/4进行预分蜜,分出之蜜送入后面的助晶器,用以降低糖膏的粘度,减轻搅拌器负荷;助晶器F为升温槽,使糖膏升温达到分蜜时要求的温度。(注:我国湛江广丰糖厂采用了立式助晶器) 

    (四)相关主要数据 

    热交换器面积(平方米)与容积比(立方米):0.96;糖膏和水温度差(升温、降温):正、负10摄氏度;搅拌桨平均转速: 0.4转/分。 

    附:图1、立式助晶器结构示意图 
    图2、立式助晶器工艺流程图 
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
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