水射流磨粉碎云母技术研究
摘要
长期以来,云母深加工制品是云母应用的主要途径,但云母深加工仍然存在一定的问题,在云母纸方面,传统的粉碎设备无法保证粉碎后云母晶型,而正在使用的水力制浆机装置是引进日本70年代的技术,处理量低下,同时还存在产品粒度不稳定,石英掺杂等问题;而在云母粉方面,特别是高档云母粉领域,产品的粒度不均匀,径厚比不大,表面形态不完整等问题制约着我国云母工业的发展。
针对这一现状,本论文主要是利用自主研制的高、低压两台水射流磨进行云母粉碎实验研究,以期解决云母粉碎工艺存在的问题,分析各因素对云母粉碎效果的影响,从而获得较为合理的水射流磨工作参数,以此改善云母粉碎工艺,提升云母深加工行业水平。
通过WJM-A型低压水射流实验研究,确定其为云母原矿粗碎设备,其主要用于造纸云母浆料的生产,其考察指标为粉碎后大于0.15mm(100目)云母粉累积含量和小于0.15mm云母粉的平均粒径,选择使用扇形喷嘴,控制射流水压6MP,侧面补充水26.7 L·min~(-1),底部补充水8.0 L·min~(-1)时处理量可达60kg/h,粉碎后云母粉浆料0.15mm以上含量可达82.36%,0.15mm以下云母粉平均粒径d_(50)=137.58μm,利用此浆料在纸样抄取器上进行造纸试验,纸张抗张强度达到2.018N/cm,击穿强度达到18.41KV/mm,与工业现场浆料造纸对比发现,纸张强度提高了近7倍,击穿电压提高了59.3%,大大提升浆料质量。
通过HWJM-A型高压水射流磨实验研究,确定其为云母超细粉碎设备,主要用于生产高档湿磨云母粉,其考察指标为粉碎后20～50μm云母粉百分含量和20～30μm云母粉的径厚比,利用正交实验获得了较好的工作参数:3#喷嘴,孔径2.60mm,处理量5kg/h,射流水压20MPa,冲击距离18mm,粉碎后云母粉20～50μm含量可达58.91%,20～30μm云母粉径厚比可达118.43。
水射流磨有效的解决了云母粉碎工艺存在的问题,得到了较为合理的云母纸、云母粉深加工工艺参数,具有一定的工业推广意义。
The main way application of mica is further processing products. For now, there are still lots of problems in mica further processing. In mica paper, traditional comminuting equipment often destroy the crystal of mica, the water pulping machine installations which still been used is introduced of Japan's 70th technology, with the issues of low capacity, particle size instability and quartz mixing; for mica powder, especially in the field of high-grade mica powder, the product with non-uniform particle size, low diameter-thickness ratio and incomplete Surface morphology are the problems restricting the development of our mica industries.
In response to this situation, we have self-researched two water-jet mills with the support of the "11~(th)·5" national scientific and technological plan, one with high pressure, the other with low pressure. This paper is studying on the effect of comminuting mica with the water-jet mill, and obtains a more reasonable water-jet mill operating parameters to enhance the level of mica processing industries.
By the research of the WJM-A low-pressure water-jet mill, we found it is better for produce the mica paper pulp, and the index is above 0.15mm accumulation and below 0.15mm d_(50). The best operating parameters is choose the fan-shaped nozzle, control the jet pressure 6MPa, side added water 26.7 L·min~(-1), bottom added water 8.0 L·min~(-1) and the deal capacity 60kg/h, the above 0.15mm accumulation will up to 82.36% and the below 0.15mm d_(50)=137.58μm. Take this mica pulp to produce the mica paper with the experimental paper device, tensile strength reached 2.018N/cm, breakdown strength reached 18.41KV/mm, compared with the industrial-site pulp, paper strength increased by nearly 7 times the breakdown voltage was increased by 59.3%, significantly enhance the quality of the pulp.
By the research of the HWJM-A high-pressure water-jet mill, it is better for superfine mica, the index is the percentage content of 20～50μm and the diameter-thickness ratio of 20～30μm. The best operating parameters is 3~(rd) nozzle with the aperture of 2.60mm, the deal capacity 5kg/h, the water-jet pressure 20MPa, the impact of distance 18mm. Under this situation, the comminuted mica 20～50μm percentage content will up to 58.91%, and the diameter-thickness ratio will be 118.43.
After a series research, we obtain a useful operating parameters for the mica comminuting, and the data has a certain significance of industrial promotion.
针对这一现状,本论文主要是利用自主研制的高、低压两台水射流磨进行云母粉碎实验研究,以期解决云母粉碎工艺存在的问题,分析各因素对云母粉碎效果的影响,从而获得较为合理的水射流磨工作参数,以此改善云母粉碎工艺,提升云母深加工行业水平。
通过WJM-A型低压水射流实验研究,确定其为云母原矿粗碎设备,其主要用于造纸云母浆料的生产,其考察指标为粉碎后大于0.15mm(100目)云母粉累积含量和小于0.15mm云母粉的平均粒径,选择使用扇形喷嘴,控制射流水压6MP,侧面补充水26.7 L·min~(-1),底部补充水8.0 L·min~(-1)时处理量可达60kg/h,粉碎后云母粉浆料0.15mm以上含量可达82.36%,0.15mm以下云母粉平均粒径d_(50)=137.58μm,利用此浆料在纸样抄取器上进行造纸试验,纸张抗张强度达到2.018N/cm,击穿强度达到18.41KV/mm,与工业现场浆料造纸对比发现,纸张强度提高了近7倍,击穿电压提高了59.3%,大大提升浆料质量。
通过HWJM-A型高压水射流磨实验研究,确定其为云母超细粉碎设备,主要用于生产高档湿磨云母粉,其考察指标为粉碎后20～50μm云母粉百分含量和20～30μm云母粉的径厚比,利用正交实验获得了较好的工作参数:3#喷嘴,孔径2.60mm,处理量5kg/h,射流水压20MPa,冲击距离18mm,粉碎后云母粉20～50μm含量可达58.91%,20～30μm云母粉径厚比可达118.43。
水射流磨有效的解决了云母粉碎工艺存在的问题,得到了较为合理的云母纸、云母粉深加工工艺参数,具有一定的工业推广意义。
The main way application of mica is further processing products. For now, there are still lots of problems in mica further processing. In mica paper, traditional comminuting equipment often destroy the crystal of mica, the water pulping machine installations which still been used is introduced of Japan's 70th technology, with the issues of low capacity, particle size instability and quartz mixing; for mica powder, especially in the field of high-grade mica powder, the product with non-uniform particle size, low diameter-thickness ratio and incomplete Surface morphology are the problems restricting the development of our mica industries.
In response to this situation, we have self-researched two water-jet mills with the support of the "11~(th)·5" national scientific and technological plan, one with high pressure, the other with low pressure. This paper is studying on the effect of comminuting mica with the water-jet mill, and obtains a more reasonable water-jet mill operating parameters to enhance the level of mica processing industries.
By the research of the WJM-A low-pressure water-jet mill, we found it is better for produce the mica paper pulp, and the index is above 0.15mm accumulation and below 0.15mm d_(50). The best operating parameters is choose the fan-shaped nozzle, control the jet pressure 6MPa, side added water 26.7 L·min~(-1), bottom added water 8.0 L·min~(-1) and the deal capacity 60kg/h, the above 0.15mm accumulation will up to 82.36% and the below 0.15mm d_(50)=137.58μm. Take this mica pulp to produce the mica paper with the experimental paper device, tensile strength reached 2.018N/cm, breakdown strength reached 18.41KV/mm, compared with the industrial-site pulp, paper strength increased by nearly 7 times the breakdown voltage was increased by 59.3%, significantly enhance the quality of the pulp.
By the research of the HWJM-A high-pressure water-jet mill, it is better for superfine mica, the index is the percentage content of 20～50μm and the diameter-thickness ratio of 20～30μm. The best operating parameters is 3~(rd) nozzle with the aperture of 2.60mm, the deal capacity 5kg/h, the water-jet pressure 20MPa, the impact of distance 18mm. Under this situation, the comminuted mica 20～50μm percentage content will up to 58.91%, and the diameter-thickness ratio will be 118.43.
After a series research, we obtain a useful operating parameters for the mica comminuting, and the data has a certain significance of industrial promotion.
引文
[1]龚先政,祖占良,郑水林.云母加工利用技术现状与发展动向[J].中国非金属矿工业导刊.2000(5):18-21.
[2]中国非金属矿业
[3]车涛.珠光云母颜料的研制及其复合机理研究[D].武汉:武汉理工大学,2004年
[4]《云母综合利用》编写组.云母综合利用[M].1984年第一版.北京中国建筑工业出版社.
[5]中国非金属矿工业手册[M].
[6]胡敏绍.试论云母鳞片技术及应用前景[J].全面腐蚀控制,2000,10(2):26-27
[7]袁楚雄,田中凯,刘奇.云母及其深加工[J].国外金属矿选矿,1996.4:42
[8]韩秀山.湿法云母粉的应用[J].中国粉体工业,2007(2):17
[9]M.ASHRAF CHAUDHRY,ANDREW K.JONSCHER.The dielectric properties of mica paper in variable temperature and hμmidity.JOURNAL OF MATERIALS SCIENCE[J].20(1985):3581-3589
[10]解原,汪灵.白云母类矿物在绝缘材料中的应用现状与开发利用建议[J].中国非金属矿工业导刊.2004,(6):10-14
[11]杜巨根,张志杰.有机硅耐高温粉云母板的研究[J].绝缘材料,1985,(03):22-25
[12]张小伟.云母板边角料回收再利用新技术[D].武汉:武汉理工大学,2007年
[13]戴为胜.我国云母纸和湿磨云母粉工业现状及展望[J].非金属矿,1995,(5):45-46
[14]傅东.湿法云母粉的开发应用及其发展前景[J].建材地质,1997,(4):36
[15]苑金生.国外云母粉的应用及生产工艺装备[J].江西建材,1996,(1):26-28
[16]苑金生.国外云母选矿新进展[J].云南建材,1996,(2):40-43
[17]袁领群.湿法云母粉生产工艺及设备配套研究.西部探矿工程.2003,3:91-92
[18]马正先.非金属矿超细粉碎技术的发展现状与趋势[J].金属矿山,2000(1)
[19]Kauffman,S.H.,Leidner,J,Woodhams,R.T,Xanthos,M.Preparation and classification high aspect ratio mica flakes for use in polymer reinforcement[J].Powder Technology 1974,(9)125-133
[20]李博威.国内外云母选矿工艺与应用的研究(续).四川建材学院学报.1992,1(7):5-10
[21]潘业才,张晓龙,玄承钢等.高压均浆发CBY系列超细剥片匀化机组在高岭土剥片工业生产中的应用研究.非金属矿.1997,3:48-51
[22]盖国胜.超细粉碎与分级技术进展[J].金属矿山,1999(9)
[23]杨华明等.超细粉碎技术的进展[J].金属矿山,1998(9)
[24]崔谟慎,孙家骏.高压水射流技术[M]北京:煤炭工业出版社,1993:1-2,29-30
[25]江山,方湄,殷秋生等.高压水射流超细粉碎云母的实验研究[J].中国安全科学学报,第5卷论文集1995.10
[26]付胜,段雄,高云鹏.高压水射流粉碎技术的现状[J].煤炭科学技术,2001,1
[27]斯旺逊RK.水驱动的磨料射流切割时磨料颗粒速度的研究[J].高压水射流,1989,1
[28]周建国,周淑文.高压均浆超细粉碎机组研制.非金属矿.1995,6:18-21
[29]方湄,宫伟力.自振式水射流超细粉碎机[P].北京科技大学CN98248771.1,1999-10-27
[30]方湄,江山,王栋知,陈玉凡等..水射流超细粉碎机[P].北京科技大学CN96200441.3,1997-06-11
[31]牛争鸣,王科,谭立新.复合式水力粉碎装置的研究[J].西安理工大学学报,2007,(04):390-393
[32]徐晓东,陈勇,吴创之等.一种脉冲空化水射流超细粉碎装置.广东中国科学院广州能源研究所[P].CN01129872.3,2003-05-14.
[33]付胜,朱全,段雄.热力辅助高压水射流超细粉碎矿物实验[J].北京工业大学学报,2007,(12):1257-1261+1266
[34]Cui Longlian,An Liqian,Gong Weili.A novel process for preparation of ultra-clean micronized coal by high pressure water jet comminution technique[J].Fuel,v 86,n 5-6,March/April,2007.750-757
[35]Guo Chu-Wen,Dong Lu.Energy Consμmption in Comminution of Mica with Cavitation Abrasive Water Jet[J].Journal of China University of Mining and Technology,v 17,n 2,June,2007.251-254
[36]Denby B,Elverson C,Hal S.The use of short chain volatile fatty acids in fine coal preparation.Fuel 2002,81:595-603
[37]Minter CE.Coal-water slurry fuels an overview.Technical Report,Defense Fuel Supply Center,Alexandria,VA,USA,1983;AD-A-134297/1
[38]Hauf C,Kniep R,Pfalf G.Preparation of various titaniμm suboxides by reduction of TiO2with silicon[J].Journal of Material Science,1999,34(6):1287-129
[39]梁国标,李新衡,王燕民.激光粒度测量的应用和前景[J].材料导报,2006,20(4):90-93.
[40]蒋阳 程继贵.粉体工程[M].2005年第一版.合肥工业大学出版社
[41]白翠萍.云母粉径厚比测定方法研究[D].武汉:武汉理工大学,2008年
[42]中华人民共和国国家技术监督局.GB7195-87.中华人民共和国国家标准--云母纸试验方法.北京:中国标准出版社,1987-12-1
[43]张宝珍.针型喷嘴结构对射流特性影响的实验研究[D].天津:天津科技大学,2003年
[44]许时 矿石可行性研究[M].2007年第二版.冶金工业出版社
[45]Mazurkie wicz M,Galecki G.Materials disintegration by hight pressure water jet-state of the technology development[A].Proceedings of 3rd Pacific Rim Int Conference on Water Jet Technology[C],1992:149
[2]中国非金属矿业
[3]车涛.珠光云母颜料的研制及其复合机理研究[D].武汉:武汉理工大学,2004年
[4]《云母综合利用》编写组.云母综合利用[M].1984年第一版.北京中国建筑工业出版社.
[5]中国非金属矿工业手册[M].
[6]胡敏绍.试论云母鳞片技术及应用前景[J].全面腐蚀控制,2000,10(2):26-27
[7]袁楚雄,田中凯,刘奇.云母及其深加工[J].国外金属矿选矿,1996.4:42
[8]韩秀山.湿法云母粉的应用[J].中国粉体工业,2007(2):17
[9]M.ASHRAF CHAUDHRY,ANDREW K.JONSCHER.The dielectric properties of mica paper in variable temperature and hμmidity.JOURNAL OF MATERIALS SCIENCE[J].20(1985):3581-3589
[10]解原,汪灵.白云母类矿物在绝缘材料中的应用现状与开发利用建议[J].中国非金属矿工业导刊.2004,(6):10-14
[11]杜巨根,张志杰.有机硅耐高温粉云母板的研究[J].绝缘材料,1985,(03):22-25
[12]张小伟.云母板边角料回收再利用新技术[D].武汉:武汉理工大学,2007年
[13]戴为胜.我国云母纸和湿磨云母粉工业现状及展望[J].非金属矿,1995,(5):45-46
[14]傅东.湿法云母粉的开发应用及其发展前景[J].建材地质,1997,(4):36
[15]苑金生.国外云母粉的应用及生产工艺装备[J].江西建材,1996,(1):26-28
[16]苑金生.国外云母选矿新进展[J].云南建材,1996,(2):40-43
[17]袁领群.湿法云母粉生产工艺及设备配套研究.西部探矿工程.2003,3:91-92
[18]马正先.非金属矿超细粉碎技术的发展现状与趋势[J].金属矿山,2000(1)
[19]Kauffman,S.H.,Leidner,J,Woodhams,R.T,Xanthos,M.Preparation and classification high aspect ratio mica flakes for use in polymer reinforcement[J].Powder Technology 1974,(9)125-133
[20]李博威.国内外云母选矿工艺与应用的研究(续).四川建材学院学报.1992,1(7):5-10
[21]潘业才,张晓龙,玄承钢等.高压均浆发CBY系列超细剥片匀化机组在高岭土剥片工业生产中的应用研究.非金属矿.1997,3:48-51
[22]盖国胜.超细粉碎与分级技术进展[J].金属矿山,1999(9)
[23]杨华明等.超细粉碎技术的进展[J].金属矿山,1998(9)
[24]崔谟慎,孙家骏.高压水射流技术[M]北京:煤炭工业出版社,1993:1-2,29-30
[25]江山,方湄,殷秋生等.高压水射流超细粉碎云母的实验研究[J].中国安全科学学报,第5卷论文集1995.10
[26]付胜,段雄,高云鹏.高压水射流粉碎技术的现状[J].煤炭科学技术,2001,1
[27]斯旺逊RK.水驱动的磨料射流切割时磨料颗粒速度的研究[J].高压水射流,1989,1
[28]周建国,周淑文.高压均浆超细粉碎机组研制.非金属矿.1995,6:18-21
[29]方湄,宫伟力.自振式水射流超细粉碎机[P].北京科技大学CN98248771.1,1999-10-27
[30]方湄,江山,王栋知,陈玉凡等..水射流超细粉碎机[P].北京科技大学CN96200441.3,1997-06-11
[31]牛争鸣,王科,谭立新.复合式水力粉碎装置的研究[J].西安理工大学学报,2007,(04):390-393
[32]徐晓东,陈勇,吴创之等.一种脉冲空化水射流超细粉碎装置.广东中国科学院广州能源研究所[P].CN01129872.3,2003-05-14.
[33]付胜,朱全,段雄.热力辅助高压水射流超细粉碎矿物实验[J].北京工业大学学报,2007,(12):1257-1261+1266
[34]Cui Longlian,An Liqian,Gong Weili.A novel process for preparation of ultra-clean micronized coal by high pressure water jet comminution technique[J].Fuel,v 86,n 5-6,March/April,2007.750-757
[35]Guo Chu-Wen,Dong Lu.Energy Consμmption in Comminution of Mica with Cavitation Abrasive Water Jet[J].Journal of China University of Mining and Technology,v 17,n 2,June,2007.251-254
[36]Denby B,Elverson C,Hal S.The use of short chain volatile fatty acids in fine coal preparation.Fuel 2002,81:595-603
[37]Minter CE.Coal-water slurry fuels an overview.Technical Report,Defense Fuel Supply Center,Alexandria,VA,USA,1983;AD-A-134297/1
[38]Hauf C,Kniep R,Pfalf G.Preparation of various titaniμm suboxides by reduction of TiO2with silicon[J].Journal of Material Science,1999,34(6):1287-129
[39]梁国标,李新衡,王燕民.激光粒度测量的应用和前景[J].材料导报,2006,20(4):90-93.
[40]蒋阳 程继贵.粉体工程[M].2005年第一版.合肥工业大学出版社
[41]白翠萍.云母粉径厚比测定方法研究[D].武汉:武汉理工大学,2008年
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