固着剂与助留剂协同控制DCS时的胶体聚集研究
夏 星1 刘泽华1 王立军1,2,3,* 陈 辉1 王建华3
(1.天津科技大学天津市制浆造纸重点实验室,天津,300457；2.浙江科技学院浙江省废弃生物质循环利用与生态处理技术重点实验室,浙江杭州,310023；3.浙江永泰纸业股份有限公司钱江特聘专家工作站,浙江杭州,311421)
摘 要：将固着剂聚胺(PA)、助留剂阳离子聚丙烯酰胺(CPAM)单独以及协同处理旧报纸脱墨浆,采用聚焦光束反射测定仪(FBRM)考察浆料中残余胶体粒子的数量、尺寸及其分布,探讨固着剂与助留剂单独及协同控制溶解与胶体物质(DCS)时的胶体聚集现象。结果表明,实验所用的PA单独处理纸浆时,会产生部分不能固着于纤维或被纤维网络截留的胶体聚集体；CPAM单独处理纸浆时,其电荷容易被DCS中和,导致其降低纸浆胶体粒子数量的效果明显下降,但并不产生胶体聚集体；PACPAM协同处理纸浆时,CPAM能将PA预处理纸浆时产生的部分胶体聚集体进一步固着到纤维上,达到更好的降低胶体粒子数量的效果,且不产生更大的胶体聚集体。
关键词：固着剂；助留剂；协同作用；聚焦光束反射测定仪；溶解与胶体物质
中图分类号：TS71+3
文献标识码：A
DOI：10.11980/j.issn.0254508X.2016.05.001
Study on the Effect of Combinative Application of Fixing Agent and Retention Aid on
Controlling Dissolved and Colloidal Substances in Pulp
XIA Xing1 LIU Zehua1 WANG Lijun1,2,3,* CHEN Hui1 WANG Jianhua3
(1. Tianjin Key Lab of Pulp and Paper, Tianjin University of Science & Technology, Tianjin, 300457；
2. School of Light Chemical Industry, Zhejiang University of Science & Technology, Hangzhou, Zhejiang Province, 310023;
3. Hangzhou Qianjiang Distinguished Experts Station, Zhejiang Yongtai Paper (Group) Industry Co., Ltd.,
Hangzhou, Zhejiang Province, 311421)
(*Email: wangchem89@163.com)
Abstract：A polyamine (PA) fixing agent, and a cationic polyacrylamide (CPAM) retention aid were used individually as well as in combination to treat deinked old newspaper pulp, and focused beam reflectance measurement (FBRM) were utilized to measure the quantity, size and size distribution of the colloidal particles remained in the pulp, with the objective to elucidate the combinative effect of fixing agent and retention aid on controlling dissolved and colloidal substances (DCS) in papermaking pulp raw material. The results indicated that when the PA was used individually to treat the pulp, some colloidal agglomerates were formed which were not fixed onto fiber or trapped in fiber mat, thus resided in pulp filtrate; when the CPAM is used individually, its charge was neutralized easily by the DCS, therefore, its ability to reduce the quantity of colloidal particles in the pulp was decreased greatly, and the bigger colloidal agglomerates were not formed; when PA and CPAM were used in combination, those agglomerates formed by PA but resided in the aqueous phase were further retained onto fiber by CPAM, therefore, better effect in reducing the quantity of the colloidal particles without forming bigger colloidal agglomerates was achieved.
Key words：fixing agent; retention aid; combinative effect; focused beam reflectance measurement; dissolved and colloidal substances
对位芳纶纸热稳定性及其
热分解动力学研究
张美云 王茹楠* 陆赵情 江 明 李 涛
(陕西科技大学,陕西省造纸技术及特种纸品开发重点实验室,陕西西安,710021)
摘 要：采用TGDSC和TGIR分析由对位芳纶短切纤维和沉析纤维制备的新型对位芳纶纸的热学性能和热分解产物,并借助CoatsRedfern热分析方法探讨其热分解动力学行为。结果表明，该对位芳纶纸热分解过程为三个阶段,100℃以下失去的为结合水,初始分解温度为535℃、TG10%为540℃,800℃时其质量损失为57.2%,且在升温过程中发生裂解但不熔融；热解产物主要为HCN、NO2、NH3、NO、CO、CO2以及H2O。其热分解特性受升温速率影响较大,随升温速率升高,对位芳纶纸的起始分解温度和终止分解温度均向高温区移动；CoatsRedfern动力学方程适用于计算该复合材料的热分解动力学参数,其拟合直线的相关系数均在0.98以上,反应级数为1,并计算了不同速率下对位芳纶纸的活化能E和频率因子A。
关键词：对位芳纶纸；对位芳纶沉析纤维；热稳定性；热解产物；热分解动力学
中图分类号：TS722
文献标识码：A
DOI：10.11980/j.issn.0254508X.2016.05.002
Study on the Thermal Stability and Thermal Decomposition Kinetics of
Paraaramid Paper Based Composite
ZHANG Meiyun WANG Runan* LU Zhaoqing JIANG Ming LI Tao
(Shaanxi University of Science & Technology, Shaanxi Province Key Lab of Papermaking Technology
and Specialty Paper, Xian, Shaaxi Province, 710021)
(*Email: wangrunanwrn@163.com)
Abstract：Thermal property and thermolysis products of a new kind of paraaramid paper based composite, prepared by paraaramid chopped fibre and fibrids, were analyzed by both TGDSC and TGIR, and CoatsRedfern Equation was used to investigate its thermal decomposition kinetics behavior. The results showed that this paraaramid paper based composite had three step decomposition process, and its initial decomposition temperature was above 530℃, its 10% weight loss temperature was 540℃. It was found that this kind of paraaramid paper based composite did not melt during pyrolysis with temperature elevating. The main thermolysis products were HCN, NO2, NH3, NO, CO, CO2 and H2O. Its thermal decomposition characteristics was influenced greatly by heating rate, both the initial decomposition temperature and ending decomposition temperature of the sample increased with the increase of heating rate. CoatsRedfern Equation was suitable for calculating its thermal decomposition kinetics parameters, the correlation coefficients of their fitting lines were all above 0.98 and the reaction order was 1. In addition, the activation energy (E) and frequency factor (A) of paraaramid paper based composite under different heating rate were calculated.
Key words：paraaramid paper; paraaramid fibrids; thermal properties; thermolysis products; thermal decomposition kinetics
原位聚合纳米SiO2法超支化CPAM
的制备及其对纸张的增强作用
张宏伟 赖秋杰 肖欣蓉
(华南理工大学制浆造纸工程国家重点实验室,广东广州，510640)
摘 要：选用季戊四醇(PETL)为多官能团支化剂，硝酸铈铵为引发剂,甲基丙烯酰氧乙基三甲基氯化铵(DMC)为阳离子单体,与丙烯酰胺(AM)在水溶液中发生自由基反应合成支化结构的阳离子聚丙烯酰胺(BCPAM)后,再加入正硅酸乙酯(TEOS)水解原位产生纳米SiO2,在BCPAM分子中产生物理交联,制备超支化阳离子聚丙烯酰胺(SiO2BCPAM),研究了其作为纸张增强剂对纸张的增强作用,通过红外光谱(FTIR)和扫面电镜(SEM)对产物的结构和特性进行表征。结果表明,所合成的产物为SiO2BCPAM杂化材料；引发剂、TEOS用量和反应时间影响SiO2BCPAM相对分子质量或分子链的形态进而影响其特性黏度；SiO2BCPAM对纸张增强效果明显,当其用量为0.5%(对绝干浆)时,纸张的抗张指数、耐破指数和撕裂指数比空白纸样分别提高了23.6%、12.4%和25.5%。
关键词：阳离子聚丙烯酰胺；超支化；原位聚合；纸张；增强剂
中图分类号：TS753. 9
文献标识码：A
DOI：10.11980/j.issn.0254508X.2016.05.003
Preparation of NanoSiO2 Modified Branched Cationic Polyacrylamide and
Its Application as Paper Strengthening Agent
ZHANG Hongwei* LAI Qiujie XIAO Xinrong
(State Key Lab of Pulp and Paper Engineering, South China University of Technology, Guangzhou,
Guangdong Province, 510640)
(*Email: 1250487858@qq.com)
Abstract：Branched cationic polyacrylamide (BCPAM) was synthesized via freeradical solution polymerization of acrylamide ( AM) and methacrylatoethyl trimathyl ammonim chloride (DMC) (DMC) by using pentaerythritol (PETL) as the core molecule and ceric ammonium nitrate (Ce4+) as the initiator. The NanoSiO2 was produced in BCPAM by hydrolysis of tetraethyl orthosilicate (TEOS) in situ and the resulted SiO2 interacted with BCPAM through physical crosslinking. The structure of SiO2BCPAM was characterized by Fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM)．The study results indicated that the initiator concentration, TEOS dosage and reaction time influenced the molecular weight or chain aggregation, and then the intrinsic viscosity．The SiO2BCPAM exhibited significant paper strengthening performance. For instance, when the dosage of SiO2BCPAM was 0.5% (based on oven dried pulp), the dry tensile index, burst index and tear index of the hand sheet were increased by 23.6%, 12.4% and 25.5% respectively.
Key words：cationic polyacrylamide; hyperbranched; insitu polymerization; paper; strengthening agent
纤维直径对玻璃棉纤维纸
结构和性能的影响
郑新苗 王海毅 田耀斌
(陕西科技大学轻工与能源学院,陕西西安，710021)
摘 要：在测量玻璃棉纤维直径的基础上,利用扫描电子显微镜、压汞仪和热线法通用导热系数仪,研究了纤维直径对玻璃棉纤维纸微观结构和宏观性能的影响。结果表明,玻璃棉纤维直径的变化会影响纸张的孔隙结构,直径越小,纤维间的孔隙尺寸越小,孔隙间相互连通程度越低；随着玻璃棉纤维平均直径的降低,孔隙率成明显增大的趋势；相同定量的手抄片,纤维平均直径越小,纸张的厚度越大,透气度越小；玻璃棉纤维纸的导热系数随纤维直径的减小,有明显降低的趋势,当玻璃棉纤维平均直径小于1 μm时,导热系数随直径的变化较明显,且直径越小,导热系数减小得越快。
关键词：玻璃棉；纤维直径；孔隙率；导热系数
中图分类号：TS761.2
文献标识码：A
DOI：10.11980/j.issn.0254508X.2016.05.004
Effect of Fiber Diameter on the Structure and Properties of Glass Fiber Paper
ZHENG Xinmiao* WANG Haiyi TIAN Yaobin
(College of Light Industry and Energy, Shaanxi University of Science & Technology, Xian, Shaanxi Province, 710021)
(*Email: soflyhi@qq.com)
Abstract：Based on the measurement of glass fiber diameters, the effect of glass fiber diameter on the microstructure and properties of glass fiber paper was studied mainly by scanning electron microscope , mercury porosimetry and thermal conductivity tester using hotwire method. The results showed that the pore structure of the sheet would be influenced by fiber diameter, and the smaller the fiber diameter, the smaller of the pore size in the fiber network, the lower of the interconnection degree between the pores. The porosity rate showed a significant increase trend with the decrease of fiber diameter., the thickness of the sheet increased but the air permeability decreased with the fiber diameter decreasing on the same basis weight. The thermal conductivity of glass fiber paper decreased significantly with the decrease of fiber diameter. The change of thermal conductivity of the paper along with the change of fiber diameter was obvious when the fiber diameter was less than 1μm,and the smaller the fiber diameter, the thermal conductivity decreased faster.
Key words：glass fiber； fiber diameter； porosity； thermal conductivity
OCC造纸污泥特性的分析
罗 清 刘 琳* 张安龙 景立明 张 丹
(陕西科技大学轻工与能源学院，陕西省造纸技术及
特种纸品开发重点实验室,陕西西安,710021)
摘 要：对OCC造纸污泥中纤维素、半纤维素、木素、蛋白质等有机化学组分的含量进行了分析,并对OCC造纸污泥空气干燥基、灰分、挥发分、固定碳含量进行工业分析；同时对污泥的微观形态、元素组成、结构组成、热解特性、污泥热值等性能进行了研究。结果表明,OCC造纸污泥化学组分中灰分含量为58.84%,纤维素含量为12.9%,半纤维素含量为5.39%,木素含量为3.20%。湿污泥颗粒中位径为35.31 μm左右,热值达14.31 MJ/kg,未检出有毒重金属元素,各种金属离子含量未超标。扫描电子显微镜观察结果表明,OCC造纸污泥结构密实,有机纤维与矿物填料紧密结合。红外光谱分析可知,OCC造纸污泥含有木素、纤维素、半纤维素、蛋白质等固有的醇及酚类的羰基、胺类及亚胺类中的—NH,脂肪族以及羧酸化合物的 C—H、CC,苯环中主要的—C—C等有机物骨架。热重分析结果表明,OCC造纸污泥中的有机物组分在200～450℃分解；无机矿物填料在450～800℃分解,且分别在351.9℃和655℃出现急剧热分解峰,热解特性较明显。
关键词：OCC造纸污泥；元素组成；化学特性；热解特性；污泥热值；微观形态
中图分类号：X793
文献标识码：A
DOI：10.11980/j.issn.0254508X.2016.05.005
Study on Characteristics of OCC Papermaking Sludge
LUO Qing LIU Lin* ZHANG Anlong JING Liming ZHANG Dan
(College of Light Industry and Energy, Shaanxi University of Science and Technology, Shaanxi Province Key Lab of
Papermaking and Special Paper Development, Xian， Shaanxi Province, 710021)
（*Email： 838833751@qq.com）
Abstract：The characteristics of OCC papermaking sludge were analyzed, including content of organic matter, cellulose, hemicellulose, lignin, protein, and air dried basis, ash content, volatile points, fixed carbon content. At the same time, the sludge morphology, elemental composition, structure, composition, pyrolysis, sludge calorific value were studied. Results showed that the ash content, fibre content, hemicellulose and lignin content of OCC papermaking sludge were 58.84%, 12.9%, 5.39% and 3.2% respectively. The particle median diameter of wet sludge was about 35.31 μm, the calorific value was 14.31 MJ/kg. No toxic heavy metal elements were detected, and the content of metal ions was not exceeded. SEM results showed that the structure of OCC papermaking sludge was compact, combining organic fiber and mineral filler together. Infrared spectral analysis showed OCC papermaking sludge contained some inherent bonds existing in lignin, cellulose, hemiellulose, protein, such as carbonyl in alcohols and phenols, —NH in amine and imine, C—H and CC in aliphatic and carboxylic acid compound, as well as —C—C benzene. TGA results showed that, organic matter of OCC papermaking sludge decomposed in the temperture of 200~450℃; and the inorganic mineral filler decomposed in the temperture of 450~800℃, and peak thermal decomposition appeared at 351.9℃ and 655℃.
Key words：waste paper sludge; elements; chemical properties; pyrolysis characteristics; sludge calorific value; morphology
模拟胶片剥离法测定废纸浆中
胶黏物表面黏性的研究
裴继诚 张冬旭 张方东 申正会
(天津科技大学天津市制浆造纸重点实验室,天津,300457)
摘 要：胶黏物在造纸过程中易黏附到烘缸和毛毯等部位,影响成纸质量。传统的胶黏物检测方法是通过测定胶黏物沉积面积和沉积数量评估胶黏物对造纸过程的影响,不能表征胶黏物表面黏性大小,因而不能客观表征胶黏物含量是否会对造纸过程产生危害。本实验提出一种新的通过模拟胶片拉开法测定剥离强度表征胶黏物表面黏性大小的检测方法。通过测定不同胶黏物模型物的表面黏性,分析了环境变化对胶黏物表面黏性的影响,以及胶黏物表面黏性对其沉积性能、浆料滤水性能的影响。实验结果表明，浆料在55℃下处理1 h,添加有聚丙烯酸酯的纸浆产生的胶黏物表面黏性最大,体系内无机盐的加入及温度的升高都会使胶黏物表面黏性增大,胶黏物的沉积性能增强；当聚丙烯酸酯产生的剥离强度由0.1607 N/mm上升到0.7676 N/mm时,胶黏物沉积面积最大由3997.3 mm2/m2上升到24226 mm2/m2,胶黏物数量最大由8760.4个/m2上升到96750个/m2,浆料的纸浆滤水性能变差,单位时间最大滤水量降低14 g。
关键词：胶黏物；表面黏性；剥离强度；沉积面积；滤水性能
中图分类号：TS749+.7
文献标识码：A
DOI：10.11980/j.issn.0254508X.2016.05.006
Measurement of the Surface Viscosity of Stickies in Waste Paper Pulp
Based on the Simulation of Peeling Sticky Films
PEI Jicheng* ZHANG Dongxu ZHANG Fangdong SHEN ZhengHui
（Tianjin Key Lab of Pulp ＆ Paper, Tianjin University of Science ＆ Technology, Tianjin, 300457)
(*Email: jcpei@tust.edu.cn)
Abstract：Stickies are easy to adhere onto dryers, belts and other parts in papermaking process, thus affecting paper product quality. Traditionally the effect of stickies on papermaking process is evaluated by testing its deposition area and amount. Those methods cannot characterize the surface viscosity of the stickies and its harm to papermaking process. A new method based on testing the peeling strength of two films coated with stickies was proposed in the study. The effect of system change on surface viscosity and the effect of surface viscosity on the deposition property and drainage property were analyzed by testing the surface viscosity of different stickies model substances. Results showed that the surface viscosity of the stickies in the pulp adding PA was the highest, the addition of inorganic salt and the temperature increase could increase the surface viscosity; the increase of the surface viscosity led to the increase of deposition. When the peeling strength of PA increased from 0.1607 N/mm to 0.7676 N/mm , the deposition area of stickies increased from 3997.3 mm2/m2 to 24226 mm2/m2, the number of stickies increased from 8760.4 per square meter to 96750 per square meter, the drainage property of pulp became worse and the maximum drainage weight decreased by 14 g in unit time.
Key words：stickies; surface viscosity; peeling strength; deposition area; water drainage property
几种脱酸润湿剂对纸张性能
影响的研究
张玉芝 张金萍* 云 悦 张 诺
(近现代纸质文献脱酸保护技术文化部重点实验室,纸质文物保护
国家文物局重点科研基地,南京博物院,江苏南京,210016)
摘 要：纸张酸性是影响纸质文献保存寿命的重要因素,因此应对酸化严重的纸张进行脱酸处理。但部分近现代书籍中常添加为提高纸张表面强度、抗水性、平滑度、印刷适性等的施胶剂或其他疏水性填料,使得脱酸所需的浸润时间变长。为改善纸张的渗透性,需在脱酸液中引入润湿剂,因此探索脱酸过程中所加润湿剂对纸张性能的影响显得尤为必要。本实验筛选了４种润湿剂(吐温80、0P10、OT75和十二烷基硫酸钠(SDS))作为候选材料,针对纸张安全性参数和润湿性参数开展实验。结果表明,润湿剂OT75既能达到理想的润湿效果,又可保护文物。
关键词：润湿剂；纸张安全性；脱酸
中图分类号：TS761
文献标识码：A
DOI：10.11980/j.issn.0254508X.2016.05.007
Effects of Wetting Agents on Deacidified Paper Properties
ZHANG Yuzhi ZHANG Jinping* YUN Yue ZHANG Nuo
(Key Lab of Paper Literatures Deacidification Conservation in Neoteric and Modern China, Key Lab of Paper Literatures Conservation
in Neoteric and Modern China, Nanjing Museum, Nanjing, Jiangsu Province, 210016)
(*Email: 332179241@qq.com)
Abstract：Acidity of paper is a very important factor affecting the presercation life of the paper based cultured relics, so deacidification is necessary for the books printed with acid papers. Usually size agents or fillers are used in papermaking to enhance its strengths, waterproof ability, smoothness and printability, and they will prolong deacidifying solution permeating into papers. Wetting agents can improve decidifying solution penetration into this paper. In this thesis, the effects of wetting agents Tween 80, OP10, OT75 and SDS on the paper properties and contact angles were investigated. The results indicated that wetting agent OT75 had satisfactory wetting efficiency and also eusured the safety of paper based cultural relic.
Key words：wetting agents; paper safety; deacidification
纸基吸波材料的制备及其
电磁性能探究
程芳静 孙 耀 王 宜* 宋 虹 耿 浩 胡 健
(华南理工大学制浆造纸工程国家重点实验室,广东广州,510640)
摘 要：通过造纸法制备了一种可用于制备吸波蜂窝的纸基吸波材料,分别选用短切碳纤维(CF)、短切碳化硅纤维(SCF)和碳纳米管(CNT)作为吸波剂,对位芳纶浆粕(PPTA)作为基体,对比了不同吸波剂及其用量对纸基吸波材料电磁参数及吸波性能的影响。结果显示,吸波剂用量(对绝干基的质量分数)在0.1%～50%的范围内,SCFPPTA纸基吸波材料的复介电常数实部小于CFPPTA和CNTPPTA纸基吸波材料的。当吸波剂用量大于3%时,CNTPPTA纸基吸波材料的介电损耗大于另外2种材料的。当吸波剂用量分别为1%、20%和3%时,对应CFPPTA、SCFPPTA和CNTPPTA纸基吸波材料的反射率最低分别可达-15.08、-28.49和-13.69dB,此时纸基吸波材料对应的厚度分别为2.45、4.35和2.98 mm。
关键词：纸基吸波材料；吸波蜂窝；电磁参数；反射率
中图分类号：TS762.9
文献标识码：A
DOI：10.11980/j.issn.0254508X.2016.05.008
Study on Preparation of Paperbased Absorbing Material and Its Electromagnetic Properties
CHENG Fangjing SUN Yao WANG Yi* SONG Hong GENG Hao HU Jian
（State Key Lab of Pulp and Paper Engineering， South China University of Technology， Guangzhou， Guangdong Province， 510640）
（*Email： wangyi@scut.edu.cn）
Abstract：In this paper, the paperbased cellular absorbing material was prepared by using papermaking process. The chopped carbon fiber (CF), chopped silicon carbide fiber (SCF) and carbon nanotubes (CNT) were used as the absorbing agents, and PPTA fibrid (PPTA) was chosen as the base materials to prepare paperbased absorbing materials. The electromagnetic parameters and absorbing property of the paperbased absorbing materials with different types of absorbing agent and different absorbing agent contents were compared. The results showed that when absorbing agent content was in the range of 0.1%～50%, the real part of permittivity of the SCFPPTA paperbased material was far lower than that of CFPPTA or CNTPPTA paperbased material. When the absorbing agent content was above 3%, the dielectric loss of CNTPPTA paperbased material was larger than that of other two. When the thickness was in the range of 0 to 10 mm, abrovbing agent dosages varied from 1% to 20% the minimum reflectivity of CF, SCF and CNT paperbased materials were -15.08 dB（thickness was 2.45 mm and content of absorbing agent was 1%）, -28.49 dB（thickness 4.42 mm, absorbing agent 20%）and -13.69 dB （thickness 2.98 mm, absorbing agent 3%）respectively.
Key words：paperbased absorbing materials; absorbing honeycomb; electromagnetic parameters; reflectivity
基于单神经元PSD的纸浆浓度
控制算法研究
黄亚南 张爱娟 胡慕伊*
(南京林业大学江苏省制浆造纸科学与技术重点实验室,江苏南京,210037)
摘 要：稳定的纸浆浓度是保证纸张质量的重要因素,但是纸浆浓度本身又处于长期不可预测的波动中。针对常规方法无法解决纸浆浓度模型的不确定、大时滞、时变性等特点带来的控制问题,提出了一种单神经元PSD的控制算法。利用增益自调整中的PSD算法改善单神经元响应慢的特性,使其增益具有自调整功能,设计出一种不依赖模型、实时性好的快速自适应控制算法。在Simulink中,调用s函数进行仿真,结果表明,与单神经元控制算法以及常规PID算法相比,改进的PSD控制算法响应速度快,并有较强的抗干扰性和自适应性。THJSK1平台中的控制研究也表明该算法具有可行性。
关键词：纸浆浓度；PSD算法；单神经元；增益自调整；s函数
中图分类号：TP273
文献标识码：A
DOI：10.11980/j.issn.0254508X.2016.05.009
Pulp Consistency Control Algorithm Based on Single Neuron Adaptive PSD
HUANG Yanan ZHANG Aijuan HU Muyi*
(Jiangsu Provincial Key Lab of Pulp and Paper Science and Technology， Nanjing Forestry University， Nanjing， Jiangsu Province， 210037)
（*Email: muyi_hu@njfu.com.cn）
Abstract：Pulp consistency fluctuates unpredictably all the time. At the same time, the stable pulp consistency is an important factor to guarantee the quality of the paper. The model of pulp consistency is characterized by uncertainty, large timedelay and timevariation, so conventional PID is difficult to obtain good control quality. Therefore, the algorithm based on single neuron adaptive PSD was proposed. In this paper, the PSD algorithm from the identification free control algorithm was added to improve the response rate of single neuron PID control. Its gain was with selftuning and thus a modelindependent and more realtime adaptive fast algorithm was developed . In the Matlab, the sfunction of this algorithm was called to simulink dynamically. The results indicated that comparing with conventional PID control and ordinary single neuron PID control , the control algorithm had better response rate, stronger interference rejection and the greater adaptive ability. The realtime control on THJSK1 experiment platform indicated this control algorithm was feasible.
Key words：pulp consistency； PSD algorithm； single neuron； gain scheduling control； sfunction
基于S7400PLC的三盘磨浆机
控制系统的应用与实现
汤 伟1,2 邱锦强1,2,* 刘庆立2 胡连华1,2
(1.陕西科技大学电气与信息工程学院,陕西西安,710021；
2.陕西科技大学自动化研究所,陕西咸阳,712000)
摘 要：以制浆生产线为背景,以三盘磨浆机为主要控制对象,基于S7400PLC、ProfibusDP总线、工业以太网通信技术构建DCS,实现对磨浆机的全自动控制。实际运行效果表明,该方案不仅进刀时间短、调节速度快、超调量小,而且可以有效地保护盘磨机的磨盘。
关键词：盘磨；占空比；恒功率
中图分类号：TP273
文献标识码：A
DOI：10.11980/j.issn.0254508X.2016.05.010
Application and Implement of Refiner Control System Based on S7400 Programmable Logic Controller
TANG Wei1,2 QIU Jinqiang1,2,* LIU Qingli2 HU Lianhua1,2
(1. College of Electrical and Information Engineering, Shaanxi University of Science and Technology, Xian, Shanxi Province, 710021；
2. Institute of Automation， Shaanxi University of Science and Technology， Xianyang， Shaanxi Province, 712000)
(*Email: 576796719@qq.com)
Abstract：The twinflo_43 refiner operation in a paper production line taken as the main control object. The DCS was built based on S7400PLC, ProfibusDP and internet. The goal of completely autocontrolling was achieved. The application results indicated that this system achieved shorter feeding time, faster tuning speed, smaller overshoot, and the disc blade could be protected effectively.
Key words：refiner; duty ratio; constant power
一种新型双级螺旋压榨脱水机设计
王 徽1 郑晓茜1 魏 兴2
(1.郑州职业技术学院,河南郑州，450121；
2.二炮驻郑州地区代表室,河南郑州，450004)
摘 要：介绍了一种新型双级螺旋压榨脱水机的设计,该新型双级螺旋压榨脱水机内有一个双级螺旋轴,螺旋轴上有高、低压两个螺旋体,两个螺旋体分别驱动。调节螺旋体转速可获取不同的压缩比,物料压榨脱水效果好,提高压榨脱水效率。该压榨脱水机适用于多种物料压榨脱水,具有操作使用方便、工作效率高、节省能耗、降低成本等优点。
关键词：双级螺旋轴；双级螺旋压榨脱水机；节能；高效
中图分类号：TS73 TH6
文献标识码：A
DOI：10.11980/j.issn.0254508X.2016.05.011
Design of A New Doublestage Screws Press Dewatering Machine
WANG Hui1,* ZHENG Xiaoxi1 WEI Xing2
(1. Zhengzhou Technical College, Zhengzhou, Henan Province, 450121；
2. Chinese Peoples Liberation Army Second
Artillery Force Stationed in Zhengzhou Representative Office， Zhengzhou, Henan Province, 450004)
(*Email:mwanghui@163.com)
Abstract：A design of a new doublestage screws press dewatering machine was introduced．The design has been applied for national patent. There is a doublestage screws axis within the new screws press dewatering machine. The screws axis has a high pressure screws and a low pressure screws which are driven separately. By adjusting screws rotating speed the doublestage screws press dewatering machine can obtained different compression ratios, which will enhance dewatering effect and improve dewatering efficiency. This new doublestage screws press dewatering machine can be applied to different materials dewatering, with easy operation, high efficiency, energy saving and lower cost advantages.
Key words：double screws axis； double screws press dewatering machine； energy saving； efficient
无水腿真空多圆盘过滤设备
苏惠阳1，2
(1.福建省轻工机械设备有限公司,福建福州,350100；
2.泉州华中科技大学智能制造研究院；福建泉州，362000)
摘 要：介绍了无水腿真空多圆盘过滤设备的基本结构、工作原理以及工艺流程；探讨了其关键技术,包括采用负压发生装置的真空发生系统和离心通引风机产生正压空气剥浆以及多段洗涤；对该类设备的优势特点进行了分析,并对其实践情况做简要介绍。
关键词：真空过滤机；无水腿；多段式；正压剥浆
中图分类号：TS733+.4
文献标识码：A
DOI：10.11980/j.issn.0254508X.2016.05.012
A Multidisc Vacuum Filter without Water Leg
SU HUIyang1,2
(1. Fujian Light Industrial Machinery Equipment Co., Ltd., Fuzhou, Fujian Province, 350100;
2. QuanzhouHUST Intelligent Manufacturing Institute, Quanzhou, Fujian Province, 362000)
(Email: suhuiyang2013@163.com )
Abstract：Basic structure, working principle and technology of a multidisc vacuum filter without water leg were introduced; the key technologies, included the vacuum system without water leg, the washed pulp peeling off by blowing of centrifugal fan and multidisc washing were discussed; then the characteristics and advantages of the equipment were analyzed; finally its practical application was also briefly introduced.
Key words：vacuum filter; without water leg; multistage type; stripping pulp by positive pressure
西门子S120在施胶机上的
应用和优化
汤 峰
(西门子中国有限公司上海分公司,上海,200082)
摘 要：主要介绍了西门子S120驱动控制系统在造纸机施胶机传动控制上的实现和调试,以及通过优化去来实现高自动化高精度的生产过程控制。
关键词：SINAMICS S120;速度控制;转矩控制;负荷分配;优化;张力控制
中图分类号：TS77
文献标识码：A
DOI：10.11980/j.issn.0254508X.2016.05.013
Application and Optimizing of SIEMENS S120 Control System in Paper Sizing Machine
TANG Feng
(SIEMENS Limited China Shanghai Branch, Shanghai, 200082)
(Email: feng.tang@simens.com)
Abstract：This paper introduced the appication and comissioning of Siemens S120 control system in paper sizing machine and realizing the high automation and high accuracy of the operation through the optimization.
Key words：SINAMICS S120; speed control; torque control; load distribution; optimizing; tension control
一种快速测试卷烟纸灰分的方法
荆 熠1 马 静2 周明珠1 王锦平1 刘传海3 董 浩1 林杰骅4
(1.国家烟草质量监督检验中心,河南郑州,450001；
2.云南省烟草质量监督检测站,云南昆明,650106；
3.牡丹江恒丰纸业股份有限公司,黑龙江牡丹江,157013；
4.上海烟草集团有限责任公司,上海,200082)
摘 要：针对现行卷烟纸灰分测试方法的测试步骤进行了优化。优化的方法为：将卷烟纸制成绝干试样,直接用绝干试样进行灰分测试,省略了水分测试步骤。结果表明，两种方法的测试结果无显著性差异,且优化后的方法减少了中间环节,操作更加简便。
关键词：卷烟纸；灰分；显著性差异
中图分类号：TS77
文献标识码：A
DOI：10.11980/j.issn.0254508X.2016.05.014
Improvement of Ash Content Determination Method for Cigarette Paper
JING Yi1,* MA Jing2 ZHOU Mingzhu1 WANG Jinping1 LIU Chuanhai3 DONG Hao1 LIN Jiehua4
(1. China National Tobacco Quality Supervision & Test Center， Zhengzhou, Henan Province, 4500001;
2. Yunnan Tobacco Quality Supervision & Test Station, Kunming, Yunnan Province, 650106;
3. Mudanjiang Hengfeng Paper Co., Ltd., Mudanjiang, Heilongjiang Province, 157013;
4. Shanghai Tobacco Group Company, Shanghai, 200082)
(*Email: jinyi_tom@outlook.com)
Abstract：Test method in the current standard of ash content determination for cigarette paper was improved. The ash content of cigarette paper was tested by using ovendry sample, moisture content determination was omitted. The results showed that there was no statistical difference between the improved method and the one used currently. It was more convenient to do the test by reducing the procedures.
Key words：cigarette paper; ash; statistical difference
基于机器视觉的纸病检测
系统发展综述
周 强 陈 颖* 沈天宇 齐 璐
(陕西科技大学电气与信息工程学院,陕西西安,710021)
摘 要：在详细介绍以机器视觉技术为核心的纸病检测流程的基础上,研究、梳理和归纳了纸病检测系统在硬件模式、软件系统和检测算法上的发展历程,分析了当前纸病检测中存在的难点问题，并讨论了该技术的发展前景。
关键词：纸病检测；机器视觉；硬件模式；软件系统；检测算法
中图分类号：TS736
文献标识码：A
DOI：10.11980/j.issn.0254508X.2016.05.015
Review on the Development of Paper Defect Detection System Based on Machine Vision Technology
ZHOU Qiang CHEN Ying* SHEN Tianyu QI Lu
(College of Electrical and Information Engineering, Shaanxi University of Science & Technology, Xian, Shaaxi Province, 710021)
(*Email: 947000692@qq.com)
Abstract：In recent years, with widely application of wide width and high speed paper machine, papermaking process required high performance paper defect detection system; at the same time, many new solutions, technologies, theories are presented in the age with abundant information, which drives the continuous development of paper defect detection that is a multifield integrated technologies. This article based on introducing paper defect detection process using machine vision technology as the core, reviewed the development course of the hardware model, software model and detection algorithms of paper defect detection system, analyzed the current difficulties in paper defect detection, and discussed the future development of the system.
Key words：paper defect detection; machine vision; hardware model; software model; detection algorithm
木素胺化改性制备重金属吸附剂
李 萌 王 振 翟 凡 付文晓
(齐鲁工业大学制浆造纸科学与技术省部共建教育部重点实验室,山东济南,250353)
摘 要：以木素为原料,通过胺化改性制备木素基重金属吸附剂,吸附Pb2+。实验中首先将木素用琥珀酸酐进行酸酐改性,然后以对甲苯磺酰氯为催化剂与三乙烯四胺反应,得到胺化改性木素。以琥珀酸酐与木素摩尔比及反应时间为变量优化酸酐改性条件。通过测定羧基含量、红外光谱分析(FTIR)和吸附性能分析对产物性能进行表征。结果表明,琥珀酸酐与木素摩尔比1.5∶1、反应时间1 h、温度28℃、pH值8.5～9.0时，所得酸酐改性木素中羧基含量最高，达1.98 mmol/g；FTIR谱图分析显示木素改性成功；胺化改性木素对Pb2+吸附符合拟二阶动力学模型和Freundlich模型,同时随着pH值的升高,产物吸附性能随之提高,pH值>5时吸附性能降低,在pH值为5时胺化改性木素对Pb2+的吸附量达到152.95 mg/g。
关键词：木素；胺化；酸酐改性；Pb2+；吸附
中图分类号：TS79
文献标识码：A
DOI：10.11980/j.issn.0254508X.2016.05.016
Preparation of Lignin Based Heavy Metal Adsorbent by Lignin Aminating Modification
LI Meng* WANG Zhen ZHAI Fan FU Wenxiao
(Key Lab of Pulp and Paper Science & Technology of Ministry of Education, Qilu University of Technology,
Jinan, Shandong Province, 250353)
(*Email: snumysky@163.com )
Abstract：In this experiment, Lignin based heavy mental adsorbent used for obsorbing Pb2+ solution was prepared by aminating modification using lignin as raw material. The purified lignin was modified by amber anhydride firstly, then reacted with triethylene tetramine using paratoluensulfonyl chloride as catalyst the aminatd lignin was prepared. The product was characterized by carboxyl group determination, Fourier Transform Infrared spectrum (FTIR) and adsorption performance analysis.The results showed that when the molar ratio of amber anhydride and lignin was 1.5∶1, the reaction time was 1 h, the temperature was 28℃, pH value was 8.5～9.0, the carboxyl group content of the modified lignin was 1.98 mmol/g. FTIR spectrum analysis showed that lignin modification was successful.The adsorption of Pb2+ was in accordance with the pseudo two order kinetic model and Freundlich model. The adsorption capacity of the product improved with the increase of pH, and the adsorption capacity decreased when pH value>5. When pH value was 5, the adsorption capacity reached 152.95 mg/g.
Key words：lignin; acylation; aminating modification; Pb2+; adsorption
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