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<正>我公司综合利用电石渣100%替代石灰石1600t/d新型干法水泥熟料生产线项目,相比于传统的石灰石生产水泥熟料的工艺,采用了纯电石渣的烘干与泵送技术、生料磨尾配料、电石渣烘干与生料制备、预分解工艺有机结合的配套技术。 相似文献
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电石渣配料的生料与普通生料分解和烧成过程的差异研究 总被引:1,自引:0,他引:1
利用电石渣配料煅烧水泥熟料既能集减少资源消耗和废渣利用为一体,又能改善熟料易烧性和降低烧成热耗,是电石渣资源化综合利用的良好途径,且具有很好的社会、环境和经济效益。电石渣配料生料和普通生料在预分解系统内主要的化学反应及发生反应的温度区域不同。电石渣配料通过预分解系统各部位的废气量和废气成分与常规生料不同,但预分解系统出口废气量不会变化。在电石渣掺加量低于30%时,熟料28d强度能达到50MPa;掺量为20%时,熟料的28d抗压强度最大达到58.1MPa。说明掺加电石渣可以烧成优质熟料。 相似文献
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TYDY水泥有限公司5 000 t/d熟料线Ф4.8 m×72 m预分解窑生产线采用石灰石、砂岩、粉煤灰和钢渣四组份配料。其中,石灰石自备矿山早期开采中,石灰石品位较差,钙低镁高,且不稳定。为此该公司对低钙高镁石灰石从矿山开采、科学搭配和合理利用、到进厂检验、优化配料、熟料煅烧进行了严格管理,层层落实,结果生产的熟料质量、产量都高于和优于设计要求,取得了良好的经济效益。 相似文献
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论文提出以包含生料磨、煤磨、水泥熟料烧成系统及余热锅炉在内的水泥熟料烧成全流程为研究对象,建立了水泥熟料烧成全流程热效率模型,并用于指导水泥生产线的能效优化改造。根据热效率模型,分解煅烧单元的热效率对全流程热效率的影响最大,应在能效优化时重点考虑。以2 500 t/d生产线为例,将原有预热分解系统替换为高固气比预热分解系统后,分解煅烧单元的热效率由27.09%提高至30.08%,全流程热效率由68.23%提高至76.50%,熟料烧成热耗降低了544.67 kJ/kg,烧成标煤耗降低了18.6 kg/t,应用效果较好。 相似文献
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我公司两条2500t/d生产线采用φ4.0m×60m回转窑,分解炉设计为TDF型。2010年因公司矿山开采面出现大面积条带状红褐色高镁石灰石矿层,使进厂石灰石MgO含量上升,且波动幅度较大,导致两台预分解窑热工不稳定,出窑熟料质量波动大,熟料煅烧困难,质量明显下降,生产较为被动。通过实践摸索,我们采取调整配料方案、优化煅烧操作等一系列措施,取得了较好的效果。 相似文献
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煅烧高电石渣掺量生料的窑尾预分解系统设计与应用 总被引:1,自引:0,他引:1
2005年8月,由我院设计的淄博宝生环保建材公司Φ3.2m×52m新型干法水泥生产线顺利投产,该生产线采用了电石渣脱水、预烘干、立磨烘干及预分解窑煅烧等综合技术,目前熟料产量最高1400t/d,电石渣在生料中干基配比最高60%,系统运行稳定。本文就其中HXPG5/13型窑尾预分解系统的设计和应用谈一些体会。1电石渣配料对窑尾预分解系统运行的影响1.1熟料形成热和窑炉燃料比掺入电石渣后,物料分解吸热量减少[1],使得熟料形成热降低,而物料分解反应大部分是在预分解系统内进行的,因而分解炉的燃料比例相对减少,而窑头燃料比例相对增加。1.2预分解系统… 相似文献
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乙烯酮(双乙烯酮)是十分重要的化工中间体,其下游产品较多。江苏某化工厂开发生产乙烯酮(双乙烯酮)下游产品三十多个,年生产规模三万多吨,是国内以乙烯酮(双乙烯酮)为中间体生产精细化学品的综合骨干企业。针对乙烯酮(双乙烯酮)下游产品废水特点,该厂结合企业实际,开展了产品优化,结构调整,清洁生产,资源循环利用,节水降耗等工作,从源头削减了污染物的生产。同时投资二千多万元新建预处理装置三套,6000m3/d废水生化处理装置一套,使全厂乙烯酮(双乙烯酮)下游产品的废水得到了有效的治理。 相似文献
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D. G. Gordeev L. F. Gudarenko M. V. Zhernokletov V. G. Kudel’kin M. A. Mochalov 《Combustion, Explosion, and Shock Waves》2008,44(2):177-189
A semi-empirical equation of state for metals is described. Its capabilities are demonstrated by the example of the equation
of state for aluminum. New experimental data are presented on the location of the isentrope of aluminum for unloading from
the state at p = 229.71 GPa on the shock adiabat to an aerogel (SiO2) of density 0.08 g/cm3.
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Translated from Fizika Goreniya i Vzryva, Vol. 44, No. 2, pp. 61–75, March–April, 2008. 相似文献
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Jorge Marcelo Romero Soledad Bustillo Hugo Enrique Ramirez Maisuls Nelly Lidia Jorge Manuel Eduardo Gómez Vara Eduardo Alberto Castro Alicia H. Jubert 《International journal of molecular sciences》2007,8(7):688-694
A thermochemical rather simple experimental technique is applied to determine the enthalpy of formation of Diperoxide of ciclohexanone. The study is complemented with suitable theoretical calculations at the semiempirical and ab initio levels. A particular satisfactory agreement between both ways is found for the ab initio calculation at the 6–311G basis This set level. Some possible extensions of the present procedure are pointed out. 相似文献
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A perturbation viscometer is a differential capillary viscometer that measures the logarithmic viscosity gradient of the viscosity-composition curve for gas mixtures. Measurements are made at different gas mixture compositions. Integration of the logarithmic viscosity gradients measured over the full composition range gives the mixture viscosity relative to the viscosity of one of the pure components of the gas mixture. This method is attractive because, for measurements of equal precision, integration of the gradients is potentially an order of magnitude more precise than measurement of the viscosities directly. It can also work at high and low temperatures and perhaps high pressures.The perturbation viscometer has been used to make measurements on ideal gas mixtures at ambient and elevated temperatures. The situation is more complicated when the gas mixtures are non-ideal. Extra effects due to density differences, molar volume change on mixing and differential thermal expansion may be measured in addition to the desired viscosity change producing systematic errors in the results. Thus, a more sophisticated apparatus is required. The standard perturbation viscometer has been modified to separate out the extra effects to permit measurement of the true change in viscosity. In addition, the theoretical operation of the modified apparatus has been revised to account for the design changes to permit calculation of the viscosity-composition profiles from the results.The apparatus has been tested using helium-HFC-125 mixtures and two new viscosity-composition profiles are presented for these mixtures at 23 and . Internal consistency tests have been used to confirm that the data produced are of high quality with an estimated uncertainty in the viscosity ratio data at of 0.9% and at of 1.5%. 相似文献
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塔设备改造选型的分析 总被引:2,自引:0,他引:2
就当前扩产增容中塔设备设计和改造时板式塔和填料塔的选型问题加以分析。在评述目前国内常用的几种塔板和新型填料之后,着重介绍一种新型塔板(导向梯形浮阀塔板)和一种新型填料(波环填料——乾隆帕克)。 相似文献