综合粉磨系统分析选粉机和辊压机.doc

1、 综合粉磨系统分析选粉机和辊压机粉磨在制造水泥工程中占有非常重要的地位,无论是生料（半成品）还是水泥(成品)需要通过粉磨来获得，每生产1吨水泥，需要粉磨各种物料3、5吨左右，电耗约为100110kw。h，其中6070的电耗消耗在粉磨中。尤其是水泥粉磨系统比生料粉磨系统耗电量更大，这是因为水泥熟料质量差时,熟料中的硅酸二钙含量高时难磨，粉磨效率就会明显降低,电耗明显增加。从水泥的水化和硬化反应、胶凝性有效利用率、强度尤其是早期强度来考虑，水泥磨的越细越好，这样还能改善其泌水性和易性等,水泥还要考虑产品的颗粒分布，力争做到节能、环保、确保水泥质量。Grinding in manufacturing

2、 cement engineering occupies a very important position, either in the raw materials （semi-finished products） or cement （finished product) should be obtained by grinding, each 1 tons of cement production， need to all kinds of material 3, 5 tons， power consumption is about 100 110 kw h， 60% 60 of ener

3、gy consumption in grinding. Especially for cement grinding system is greater than the system power consumption of raw material grinding, it is because the poor quality of cement clinker, dicalcium silicate content in the clinker high grinding hard， grinding efficiency will be significantly reduced，

4、power consumption increased significantly。 From cement hydration and hardening reaction, gel intensity of effective utilization, especially the early strength, cement grinding of the thin the better, it also can improve its workability etc for secretion, and consider product of cement particle distr

5、ibution and strive to achieve energy saving, environmental protection, to ensure the quality of cement. 个人收集整理，勿做商业用途个人收集整理，勿做商业用途2.实现宏伟目标2。 Achieve the ambitious goals 节能是促进 经济 社会可持续发展、实现全面建设小康社会宏伟目标的关键之一。工业是能源和原材料的主要消耗大户，水泥工业又是大量耗能的工业，因此节能降耗成为我国水泥工业长期而重要的任务，实现这一目标的关键在于提高粉磨效率，降低粉磨作业电耗.实际生产中，以辊压机为代表

6、的料床预粉磨系统是料床粉磨的主导.预粉磨分为循环预粉磨、混合粉磨、联合粉磨和半终粉磨。相对球磨机一级闭路粉磨工艺，联合粉磨和半终粉磨流程具有明显的系统优势.虽然半终粉磨在系统增产方面具有更好的效果，但其节能幅度却略低于联合粉磨，且设备选型时受到一定限制,因此在实际工程设计中，联合粉磨流程得到了更加广泛的应用。尤其在生产改造项目中，由于受到原有设备能力限制(尤其是原有选粉机的能力不足)，选用半终粉磨流程局限性较大，而循环预粉磨、联合粉磨流程则具有较大的可行性,这其中又以联合粉磨流程更能取得良好的节能增产效果。Energy saving is to promote economic and soc

7、ial sustainable development， realize the comprehensive construction welloff society goal of one of the key. Industry is the main consumption of energy and raw materials, the cement industry is a large amount of energy， so saving energy and reducing consumption has become Chinas cement industry longt

8、erm and important task， the key to achieving this goal is to improve the grinding efficiency， reduce the grinding operation power consumption。 In practical production， represented by roller press grinding system of material bed is bed grinding dominated。 Pre grinding can be divided into circular gri

9、nding, blended grinding and combined grinding and semi final grinding。 Relatively closed circuit ball mill level grinding process， the combined grinding and semi final grinding process has obvious advantages。 Although half a mill in the production system has a better effect， but its energy saving ra

10、te is slightly lower than combined grinding， and equipment type selection by certain limitations, so in the actual engineering design， combined with grinding process has been more widely used. Especially in plant modification project, due to the original equipment capacity limit capacity （in particu

11、lar， the original classifier)， selects the final grinding process limitations， large and circular pre grinding and combined grinding process has great feasibility, overpackaging that combined grinding process can obtain good energy saving effect to increase production。 个人收集整理，勿做商业用途文档为个人收集整理，来源于网络二、

12、联合粉磨提高产量，降低能耗的主要措施2， combined grinding to increase production， reduce the energy consumption of the main measures 1.水泥平均粒度1。 Cement average particle size 在水泥粉磨过程中，不是均匀的单颗粒，而是包含不同粒径的颗粒体一粒群，所以在评述水泥细度时若只用筛余这一简单的表示方法，差不多有90多的水泥颗粒都通过筛孔成了筛下物,然而这些筛下物的颗粒大小并不清楚，故筛余量相同时比表面积也会出现很悬殊的现象。水泥颗粒的平均粒度是表征水泥颗粒体系的重要几何参数

13、，但所能提供酱油的粒度特性信息则非常有限,因为两个平均粒度相同的粒群，完全可能有不一样的粒度组成（颗粒级配）。In cement grinding process， single particle is not uniform, but contains a grain of different size particles of the body, if use screen when on cement fineness so this simple representation, is about more than 90% of the cement particles through

14、 the sieve pore is undersize， however the undersize material particle size is not clear， so the screen allowance in specific surface area at the same time also can appear very different phenomena. Cement particles of the average particle size is an important geometric parameter characterization of c

15、ement particle system, but can provide information of characteristics of particle size is very limited， because both the average particle size of the same particle swarm， may have completely different particle size （grading）. 文档为个人收集整理,来源于网络本文为互联网收集，请勿用作商业用途2.水泥比表面积2。 The cement specific surface are

16、a 国外水泥标准大多规定比表面积指标，一般都采用勃氏比表面积仪测定水泥比表面积，我国的硅酸盐水泥和熟料的国家标准规定已与国外标准一致。水泥比表面积与水泥性能已存在着较好的关系。水泥成品的比表面积与其物理力学强度之间具有良好的相关性，由于闭路粉磨工艺的特殊性及选粉机自身的分级精度，研磨体级配等方面的原因，其成品比表面积一般都不很高，制约了水化活性的发挥.泰安锅炉实际生产过程中,可采取以下技术措施,将水泥比表面积提高至350m 2 kg以上。Foreign cement standards mostly targeted specific surface area， generally USES

17、the brunton measuring cement specific surface area, surface area of Portland cement and clinker has been consistent with that of foreign standard of national standard. Cement specific surface area and the cement performance has been good relationship exists. Cement specific surface area of the finis

18、hed product has a good correlation between it and its physical and mechanical strength， due to the particularity of the closedcircuit grinding process and classifier classification accuracy， grinding medium size distribution and so on reasons, its finished product specific surface area is generally

19、not high, restricted the hydration activity of the play。 Actual production process, can take the following technical measures, the cement specific surface area increased to more than 350 m 2 / kg。 本文为互联网收集，请勿用作商业用途文档为个人收集整理，来源于网络3.水泥颗粒级配3。 The cement particle gradation 国内外长期试验研究证明，水泥颗粒级配是水泥性能的决定因素，目

20、前比较公认的水泥最佳颗粒级配为332m，而3-32m颗粒对强度的增长起主要作用，其粒度分布是连续的，总量应不低于65；1624m的颗粒对水泥性能尤为重要，含量愈多愈好；小于3m的细颗粒，易结团，不要超过10；大于64m的颗粒活性很小.水泥粒度分布（颗粒级配)不当还会影响水泥水化时的需水量（和易性),若为了达到水泥砂浆的标准稠度而提高了用水量,则最终会降低硬化后的水泥或表混凝土的强度。因此掌握水泥颗粒级配的指标是很重要的。国外水泥的圆度系数，大多在0.67左右。At home and abroad long-term experimental study proves that the ceme

21、nt particle gradation is the determinant of the cement performance, now is recognized as one of the best cement particle gradation for 3-32 microns, and the intensity of 332 microns particles on the growth of plays a main role, its size distribution is continuous, the amount should be not less than

22、65%; 1624 microns particles of cement performance is particularly important in the more the better； Less than 3 microns of fine particles， easy to knot, not more than 10； More than 64 microns particles activity is very small. Improper cement particle size distribution (grading) can also affect the c

23、ement hydration water demand （workability), if in order to achieve normal consistency of cement slurry and improve the water use， it will ultimately reduce hardening of cement concrete strength or table。 So master cement particle gradation index is very important. The roundness coefficient of cement

24、 abroad, mostly around 0。67。 文档为个人收集整理，来源于网络文档为个人收集整理，来源于网络粉磨在制造水泥工程中占有非常重要的地位，无论是生料(半成品）还是水泥（成品)需要通过粉磨来获得，每生产1吨水泥，需要粉磨各种物料3、5吨左右,电耗约为100110kw。h，其中60%70的电耗消耗在粉磨中。尤其是水泥粉磨系统比生料粉磨系统耗电量更大，这是因为水泥熟料质量差时，熟料中的硅酸二钙含量高时难磨，粉磨效率就会明显降低，电耗明显增加。从水泥的水化和硬化反应、胶凝性有效利用率、强度尤其是早期强度来考虑，水泥磨的越细越好，这样还能改善其泌水性和易性等，水泥还要考虑产品的颗粒分

25、布，力争做到节能、环保、确保水泥质量。Grinding in manufacturing cement engineering occupies a very important position, either in the raw materials （semifinished products) or cement （finished product） should be obtained by grinding, each 1 tons of cement production， need to all kinds of material 3， 5 tons, power consum

26、ption is about 100 110 kw h， 60 60 of energy consumption in grinding。 Especially for cement grinding system is greater than the system power consumption of raw material grinding, it is because the poor quality of cement clinker， dicalcium silicate content in the clinker high grinding hard, grinding

27、efficiency will be significantly reduced, power consumption increased significantly。 From cement hydration and hardening reaction， gel intensity of effective utilization, especially the early strength, cement grinding of the thin the better， it also can improve its workability etc for secretion, and

28、 consider product of cement particle distribution and strive to achieve energy saving, environmental protection， to ensure the quality of cement. 个人收集整理，勿做商业用途个人收集整理，勿做商业用途2。实现宏伟目标2。 Achieve the ambitious goals 节能是促进 经济 社会可持续发展、实现全面建设小康社会宏伟目标的关键之一。工业是能源和原材料的主要消耗大户,水泥工业又是大量耗能的工业，因此节能降耗成为我国水泥工业长期而重要的任

29、务，实现这一目标的关键在于提高粉磨效率，降低粉磨作业电耗。实际生产中，以辊压机为代表的料床预粉磨系统是料床粉磨的主导。预粉磨分为循环预粉磨、混合粉磨、联合粉磨和半终粉磨.相对球磨机一级闭路粉磨工艺，联合粉磨和半终粉磨流程具有明显的系统优势。虽然半终粉磨在系统增产方面具有更好的效果,但其节能幅度却略低于联合粉磨，且设备选型时受到一定限制,因此在实际工程设计中，联合粉磨流程得到了更加广泛的应用.尤其在生产改造项目中，由于受到原有设备能力限制(尤其是原有选粉机的能力不足），选用半终粉磨流程局限性较大，而循环预粉磨、联合粉磨流程则具有较大的可行性，这其中又以联合粉磨流程更能取得良好的节能增产效果。En

30、ergy saving is to promote economic and social sustainable development， realize the comprehensive construction well-off society goal of one of the key。 Industry is the main consumption of energy and raw materials， the cement industry is a large amount of energy, so saving energy and reducing consumpt

31、ion has become China's cement industry long-term and important task， the key to achieving this goal is to improve the grinding efficiency， reduce the grinding operation power consumption。 In practical production， represented by roller press grinding system of material bed is bed grinding dominat

32、ed。 Pre grinding can be divided into circular grinding， blended grinding and combined grinding and semi final grinding。 Relatively closed circuit ball mill level grinding process, the combined grinding and semi final grinding process has obvious advantages. Although half a mill in the production sys

33、tem has a better effect， but its energy saving rate is slightly lower than combined grinding， and equipment type selection by certain limitations, so in the actual engineering design, combined with grinding process has been more widely used. Especially in plant modification project, due to the origi

34、nal equipment capacity limit capacity (in particular， the original classifier)， selects the final grinding process limitations， large and circular pre grinding and combined grinding process has great feasibility， overpackaging that combined grinding process can obtain good energy saving effect to in

35、crease production. 本文为互联网收集，请勿用作商业用途文档为个人收集整理，来源于网络二、联合粉磨提高产量，降低能耗的主要措施2， combined grinding to increase production， reduce the energy consumption of the main measures 1.水泥平均粒度1. Cement average particle size 在水泥粉磨过程中，不是均匀的单颗粒，而是包含不同粒径的颗粒体一粒群，所以在评述水泥细度时若只用筛余这一简单的表示方法，差不多有90多的水泥颗粒都通过筛孔成了筛下物，然而这些筛下物的颗粒大

36、小并不清楚，故筛余量相同时比表面积也会出现很悬殊的现象。水泥颗粒的平均粒度是表征水泥颗粒体系的重要几何参数，但所能提供的粒度特性信息则非常有限，因为两个平均粒度相同的粒群，完全可能有不一样的粒度组成(颗粒级配）.In cement grinding process， single particle is not uniform, but contains a grain of different size particles of the body， if use screen when on cement fineness so this simple representation, is

37、about more than 90% of the cement particles through the sieve pore is undersize， however the undersize material particle size is not clear, so the screen allowance in specific surface area at the same time also can appear very different phenomena. Cement particles of the average particle size is an

38、important geometric parameter characterization of cement particle system， but can provide information of characteristics of particle size is very limited, because both the average particle size of the same particle swarm， may have completely different particle size (grading)。 个人收集整理，勿做商业用途本文为互联网收集,请

39、勿用作商业用途2.水泥比表面积2. The cement specific surface area 国外水泥标准大多规定比表面积指标,一般都采用勃氏比表面积仪测定水泥比表面积，我国的硅酸盐水泥和熟料的国家标准规定已与国外标准一致。水泥比表面积与水泥性能已存在着较好的关系。水泥成品的比表面积与其物理力学强度之间具有良好的相关性,由于闭路粉磨工艺的特殊性及选粉机自身的分级精度，研磨体级配等方面的原因，其成品比表面积一般都不很高，制约了水化活性的发挥。实际生产过程中，可采取以下技术措施，将水泥比表面积提高至350m 2 kg以上。Foreign cement standards mostly ta

40、rgeted specific surface area, generally USES the brunton measuring cement specific surface area， surface area of Portland cement and clinker has been consistent with that of foreign standard of national standard. Cement specific surface area and the cement performance has been good relationship exis

41、ts. Cement specific surface area of the finished product has a good correlation between it and its physical and mechanical strength, due to the particularity of the closedcircuit grinding process and classifier classification accuracy, grinding medium size distribution and so on reasons, its finished product specific surface area is generally not high, restricted the hydration activity of the play. Actual production process， can take the following technical measures, the cement specific surface area inc