1) coal or rock dynamic disaster
煤岩动力灾害
1.
Electromagnetic emission forecasting technology of coal or rock dynamic disasters in mine;
矿井煤岩动力灾害电磁辐射预警技术
2.
In this paper, using laboratory experiments and theoretical analysis, microwave radiation rules and mechanism of thermal radiation of loading coal in deformation and fracture process is studied and basic theoretical is analyzed on how to apply the method to predict the coal or rock dynamic disaster.
本文采用实验室实验、理论分析相结合的方法,研究了受载煤体变形破坏过程中微波辐射规律和热辐射机理等内容,并对这一技术应用于煤岩动力灾害的预测预报进行了基础理论分析。
2) dynamic disaster
动力灾害
1.
Noise processing method for underground dynamic disaster with sound transmitting monitoring and measuring;
声发射监测井下动力灾害的噪声处理方法
2.
Frequent and violent underground pressure behavior and dynamic disaster made roadways deform and damage instantaneously in full-mechanized caving mining face with horizontal sections in steeply inclined and extremely thick coal seam.
针对急倾斜特厚煤层水平分段综放工作面回采巷道频繁出现强烈矿压显现和动力灾害造成巷道瞬间变形破坏现象,通过现场测试和理论分析研究动力灾害发生机理,采取综合防治措施,很好地解决了动力灾害问题,促进了矿井安全生产。
3) dynamic catastrophe
动力灾害
1.
The brief analysis about mine dynamic catastrophe in Jiaoping mining area of Tongchuan;
铜川焦坪矿区矿井动力灾害浅析
4) geological hazard geodynamics
灾害动力学
5) mine disaster
煤矿灾害
1.
Present status and development of mine disaster prevention and control technology;
煤矿灾害防治技术现状与发展
2.
In order to reduce occurrence of coal mine accidents and to start the timely and effective emergency rescue operations,a visual coal mine disaster emergency rescue management information system was established by adopting management information system principle and Geographic Information System(GIS)software with GIS and VB 6.
为了减少煤矿事故的发生和及时有效的展开应急救援,利用对煤矿开采情况的全面了解,通过对地理信息系统(GIS)和煤矿灾害应急救援技术的研究,以GIS与VB 6。
6) dynamic disaster in mine
矿山动力灾害
补充资料:动力机械: 省煤器
布置在锅炉尾部烟道内加热给水的部件。它的作用是吸收锅炉尾部烟气中的部分热量﹐降低排烟温度﹐以节省燃料。现代锅炉一般都有省煤器。省煤器一词来源于燃煤锅炉﹐对于燃油﹑气和其它燃料的锅炉习惯上也称为省煤器。省煤器按出口水是否汽化分为沸腾式和非沸腾式。沸腾式的省煤器的沸腾率(出口水中汽化部分的质量百分数)不应超过20%﹐过大会增加流动阻力﹐甚至会出现管组中各管流量交替脉动﹐使省煤器振动﹐从而造成损坏。中压锅炉的省煤器常为沸腾式﹐其它压力的锅炉则常为非沸腾式。省煤器按结构和材料又可分为铸铁式和钢管式。铸铁式省煤器(见图 铸铁式省煤器 )强度不高﹐用于压力小于2.5兆帕的锅炉。为了加强传热﹐管外有大量鳍片。铸铁式省煤器承受振动和冲击的能力较差﹐故不能用作沸腾式﹔但耐腐蚀性能良好﹐可用于给水未经除氧的工业锅炉。钢管式省煤器不受压力限制﹐可以用作沸腾式﹐一般由外径为32~51毫米的碳素钢管制成。有时在管外加鳍片和肋片﹐以改善传热效果。钢管式省煤器由水平布置的并联弯头管子(习称蛇形管)组成。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条