水泥窑

Although the new dry processes are the indicatations of the advanced technology of cement manufacture, there are some internal shortages in the pre-heater and calciner system, which makes the manufacture ineffeciency.

新型干法窑代表了当今水泥生产技术的先进水平。但它也存在着粘结堵塞的顽症，极大地影响了水泥的正常生产。特别是在我国，粘结堵塞问题尤为突出和频繁，新型干法水泥生产受到严重的制约。

I have finished the ratio calculation of mw materials used to produce cementclinker, relative environmental impact importance assessment of emissions andenvironmental synthetic index under different conditions.the result means that we can selectthe optimal procession parameter and optimal procession ,considering environmentalactor ,mechanic erect kiln is the best one among the different kilns.the procession of closed-loop recyclable concrete is introduced in detail ,we found it is possible to make full use ofwasted concrete illimitedly by proper design ,though the recyclable concrete physicalfunction decreased a little comparing with virgin concrete, it's environmental property ismuch better than usual concrete.we also found that it is possible to use wasted concrete asthe coarse aggregate or fine aggregate.we probe the possiblity that fuzzy mathematics isused to judge whether a product is green product or not.

确定了不同窑型的最佳的工艺操作参数；比较了不同窑型的环境性能，得出结论：预分解窑是最佳的工艺选择。本软件具有专家系统的功能，本软件的最大特点是动态性和灵活性，这是为人为的因素，地方的因素变化性而设计的。允许输入不同的边界条件，即可得到不同的结果，这为水泥-混凝土的环境化设计提供了有力的帮助。本人也努力设计一个适用于水泥厂的数据库的框架，来实现水泥厂的在线评估。本文探讨了实现环境化设计的可再循环的混凝土的设计，得出结论：通过合理设计的混凝土的无限循环是可能的，虽然再循环的混凝土的性能与原混凝土相比有所下降，但其环境性能是普通混凝土无法比拟的，本文还探讨了废混凝土的利用的可能性及评估，废混凝土用作混凝土的粗集料是合适的，虽也可作细集料，但不值得提倡。

Cement kiln is a development direction for building material production, because a great amount of cement needs to be produced in our country.

水泥回转窑是建材工业发展的方向，我国是水泥生产大国，而国内回转窑与发达国家相差甚大，尤其在热工控制方面。

The Chinese government has been trying to speed a shift from so-called vertical kiln cement to cement made in dry rotary kilns.

中国政府一直试图加快从所谓的立窑水泥向干法回转窑水泥的转变。

This design passes to turn round the kiln industrial art to steer the research to the cement, establishing the control scheme of the system, this design is mainly to carried out the side to commit some research analyses to the revolving speed of the coal feeder in the hardware, making use of the single machine of sheet of MCS-51 to carry out the revolving speed control of the cement turn-over kiln coal feeder.

0求助！中译英请高手指点，将下面文字翻译成英文，谢谢！本设计通过对水泥回转窑工艺进行研究，确立了系统的控制方案，本设计主要对喂煤机的转速在硬件实现方面做了一些研究分析，利用MCS-51单片机实现水泥回转窑喂煤机的转速控制。

Portland cements with similar specific surface were made in the same laboratory-mill with different clinkers produced in new type dry process kiln,wet process kiln,and shaft kiln.

选取了新型干法窑、湿法窑和立窑等不同烧成工艺条件下所生产的熟料，在同一实验磨中磨制成比表面积相近的硅酸盐水泥。

This paper targets at the design of a new dry process kiln cement grinding plant, whose production capacity is 2500 tons of cement clinkers per day. According to some relative references and the product quantity required per day, we design and calculate the cement burden plan, the three great balances (which include material balance, main engine balance and storehouse balance) and the choice of the type of equipments used in the cement grinding plant.

本论文就2500 t/d（日产2500吨）熟料新型干法窑水泥粉磨车间进行设计，根据相关文献以及对产量要求对水泥的配料方案、三大平衡（物料平衡、主机平衡、储库平衡）和水泥粉磨车间系统设备的选型进行设计与计算，并据此对水泥粉磨车间的主要粉磨设备以及其相关的附属设备的型号进行了选择。

They used limestone of different quality and large-fluctuant-range waste stone in proportion and substituted a part of clay with clay stone to produce cement. And the physical performance of the produced Portland cement was improved greatly-28 d strength increased from 50.4MPa to 54.5MPa, and output of the rotary kiln increased. Moreover, the company also tried to use green shale as admixture to produce compound cement and successfully produced compound Portland cement with a little low early strength and a little higher 28d strength than slag Portland cement. And the cement cost decreased 19.59 yuan per ton.

将CaO含量波动范围较宽的废石与不同品位石灰石按比例搭配使用，将其粘土质特性的废石替代部分粘土生产；而且生产的硅酸盐水泥熟料物理性能有较大提高，28d强度由原来的50.4 MPa提高到54.5 MPa，窑产量也有一定的提高；此外，该公司还进行了将绿色页岩作混合材生产复合水泥的生产探索，成功生产出了早期强度略低，但28d强度略高于矿渣硅酸盐水泥的复合硅酸盐水泥，且使水泥生产成本降低19.59元/t。

Key Words shaft kiln cement,rotary kiln cement,durability of concrete

本文采用立窑水泥和回转窑水泥配制同一等级(C30)混凝土，对混凝土耐久性能中的抗渗性、抗冻性、收缩性、抗碳化和钢筋锈蚀五项性能进行了对比研究。

However, development of cement industry will also face disadvantageous factors: 1 along with the coming of high cost epoch, continued rising in costs of coal, power, mineral resources, environment, human resource and capitals and the increase in social responsibilities that enterprises should take on will bring restricting factors to the investment and development of cement industry; 2 on the basis of the gradual increase of industrial concentration, market competition will change from the current competition between large enterprises and small enterprises and between new dry process and backward shaft kiln technology to the competition among large enterprises and among new dry processes, so the extent of market competition may further extend; 3 along with RMB increasing in value, demand decreasing in north America, new production lines in Middle east being put into operation and the persistent high price of international shipping, national cement export will face huge menace; backward flow of export products will certainly aggravate market competition in some areas.

但水泥行业的发展也将面临不利因素。一是随着高成本时代的到来，煤炭、电力、矿产资源、环境、人力、资金等成本的不断提高及企业所承担的社会责任的增加，将对水泥工业的投资和发展平添抑制因素；二是在产业集中度逐步提高的基础上，市场的竞争将由目前大企业与小企业、新型干法与落后立窑工艺之间的竞争转为大企业与大企业、新型干法与新型干法之间的竞争，市场竞争的程度有进一步加大的可能；三是随着人民币的升值、北美市场需求的下降、中东新生产线的投产及国际航运价格的居高不下，我国水泥出口将面临巨大的威胁，出口产品的回流，势必将加剧局部地区的市场竞争。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。