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皮带机头卸载点多功能全封闭装置在综采工作面的应用 被引量:1
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作者 牛庆俊 强伟 李成明 《煤矿现代化》 2018年第1期68-69,共2页
一种在煤矿综采或综掘工作面皮带机头卸载点多功能全封闭装置,该装置采用钢板、槽钢组合联接,方便井下运输和现场安装,由左右侧板、上封板、前挡板、缓冲平台和铰接吊梁等组成,结构简单,使用方便、可靠,够实现皮带机头卸载点运料、煤矸... 一种在煤矿综采或综掘工作面皮带机头卸载点多功能全封闭装置,该装置采用钢板、槽钢组合联接,方便井下运输和现场安装,由左右侧板、上封板、前挡板、缓冲平台和铰接吊梁等组成,结构简单,使用方便、可靠,够实现皮带机头卸载点运料、煤矸卸载缓冲、综合降尘、堆煤保护装置吊挂、人员防坠等多功能,延长了反井漏斗的使用寿命,减少了维修费用,降尘效果明显,改善了现场的作业环境,增加了煤炭的块煤度,提高了经济效益,提高工作效率和安全系数。 展开更多
关键词 全封闭 运输 气动油缸 防坠
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Experimental Investigation on Diesel Engine Performance Using Nano Air-Bubbles Mixed into Gas Oil
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作者 Yasuhito Nakatake Takashi Watanabe Toshihiko Eguchi 《Journal of Energy and Power Engineering》 2013年第5期827-833,共7页
The authors studied diesel combustion improvement with a reformed fuel that mixed nano air-bubbles by using an EMNB (ejector-type micro-nano bubbler). The EMNB performs adequately and is smaller (20 mm diameter, 34... The authors studied diesel combustion improvement with a reformed fuel that mixed nano air-bubbles by using an EMNB (ejector-type micro-nano bubbler). The EMNB performs adequately and is smaller (20 mm diameter, 34 mm length) than other micro-nano bubblers. It is quite possible to install it in an actual engine. An experiment was performed using a single cylinder engine with a dish or square shaped combustion chamber cavity, and in order to compare the engine speed change, we also used a four cylinder engine with a turbo-charger. The results showed that an improvement in specific fuel consumption, a decrease in the density of the exhaust smoke and an improvement in charging efficiency etc. were achieved by mixing nano bubbles into gas oil under most conditions. It is confirmed that combustion was promoted and improved by a physical and chemical action through mixing the nano bubbles into gas oil. 展开更多
关键词 Diesel engine liquid fuel nano bubble specific fuel consumption environmental pollutant.
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