共查询到20条相似文献,搜索用时 93 毫秒
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本文介绍了利用恒温式热量计对煤的发热量测定过程中点火方法的改进,并对两种点火方法的测定结果进行了比较,阐明了未熔断式点火方法的优越性. 相似文献
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本文研究了采用氧弹热量仪测定黑生料配煤热量的方法。试验表明分离碳酸盐之后再行温定黑生料中的发热量获得了满意的结果,黑生料发热量测定方法的研究,为立窑采有黑生料煅烧水泥熟料提供了更为准确而又直观的生产控制方法。同时也提出了尾矿发热量的测定方法。 相似文献
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《Planning》2015,(5)
通过阐述煤样发热量测定原理,从环境温度、热容量、试样水分、试样质量、高灰分高挥发分等特殊煤种及氧弹漏气六个方面分析影响热量计测定准确性的因素,从而提出燃煤化验室为保证热量计测定准确性的措施,为电厂燃煤化验室化验员准确测定发热量提供一些参考依据。 相似文献
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选取目前市场上常用的11种地板作为研究对象,采用锥形量热仪研究了引燃时间、热释放速率、火灾性能指数、总热释放量、有效燃烧热、CO生成量等燃烧特性参数。试验结果及分析表明:11种地板火灾安全性从高到低依次为:栗木、番龙眼、槐木、柞木、白橡木、榆木、刨花板、中密度纤维板、高密度纤维板、枫桦木、楠竹;试样燃烧为4个阶段:一次猛烈燃烧阶段,一次燃烧衰减阶段,二次猛烈燃烧阶段,二次燃烧衰减阶段;11种试样的有效燃烧热数值较为接近,基本在12 MJ/kg左右,且在试验过程中的CO生成量稳定在17×10-6左右。 相似文献
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N. Klaus 《The Science of the total environment》1985,44(1):81-87
The composition of the flue gas deposits from an Otto-cycle and a diesel engine was investigated by SIMS. The flue gas aerosol was collected by impactors directly from the tail pipe of the motor vehicles. In order to prevent the condensation of water vapor and the coagulation of the aerosol, a dilution stage was placed between the tail pipe and the impactor.The main constituents of the flue gas deposits were unburned hydrocarbons and carbonaceous materials. Moreover, in the deposits produced by the Otto-cycle engine, Na+, Cl?, Ca+ and Br? were detected. In addition, the deposits of the diesel engine contained H2O+ and K+, but no Br+. No involatile compounds of sulfur or nitrogen were detected in the flue gas aerosol deposits of either engine. 相似文献
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Liu Hongzhao E. Appleton 《Tunnelling and Underground Space Technology incorporating Trenchless Technology Research》1999,14(3):395
In this work, an analysis and experimental research on a grout delivery mechanism in the lining of shafts has been accomplished. The dynamic equation of this spraying mechanism has been established and describes the system's performance properties under different conditions of viscous friction force. The analysis introduces a combined viscous damping coefficient c* and a ratio λ between viscous friction force and inertia force. It is proved theoretically that the relative velocity of the grout is less than the implicate velocity and the emission angle α described in the paper is always larger than 45°. Numerical simulations have been performed by feeding various different parameters into the model. Meanwhile, experimental research has been carried out, in which attention has been directed towards the directional spraying function. The real rotation to impact angles have been acquired for different values of variable ξ and the running speed of the disc. The theoretical analysis and the experimental results were in agreement. Additionally, a formula for calculating the driving torque and power has been developed. This research lays the foundation for creating remote concrete spraying machines that have a directional spray capability for the lining of shafts. 相似文献
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针对四川省地方标准DB51/T5050<白酒厂设计防火规范>中采用水喷雾灭火系统作为白酒库固定灭火系统的相关设计参数进行实验测试.在设定喷头数量、喷雾强度和持续喷雾时间等的条件下,用水喷雾灭火系统扑救酒精度为60度的白酒火.实验证明,水喷雾灭火系统应用于扑救白酒火灾是有效的,其灭火效果与水雾液滴大小、雾化角大小、供水强度、管道的施工情况等因素有关. 相似文献
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对水泥粉喷桩进行了简单介绍,通过水泥粉喷桩复合地基在工程中的应用,对水泥粉喷桩的承载力进行了设计计算,对质量检验和载荷试验结果进行了分析,并对粉喷桩的加固效果、强度进行了探讨,以推广水泥粉喷桩的应用。 相似文献
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对产甲烷细菌的分析与研究 总被引:1,自引:0,他引:1
介绍了产甲烷细菌的形态特征、生理特征、营养特征,研究了产甲烷细菌的分离,探讨了产甲烷细菌在废水处理和农村的应用,指出有必要充分利用产甲烷细菌进行废水处理以实现甲烷的资源化利用。 相似文献
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结合保证照明节能实施的相关制度标准,提出了提高照明节能度应坚持的两个原则及应重视的一个部件,研究分析了灯具对照明能效的影响,为优质高效开展照明节能工作积累了丰富的经验。 相似文献