摘要：在DF19断层影响下,11#煤层不连续,从而给31102综采工作面正常回采带来制约。为实现采面安全高效通过DF19断层,提出采用预掘巷道并在预掘空间内向断层影响区进行松动爆破,以达到提高采煤机破岩效率、弱化岩层目的。依据采面实际情况,对松动爆破方案以及过断层技术方案进行设计。现场应用后,采面在过断层期间可保持3.2 m/d推进速度,采煤机磨损程度也有所降低,为采面过大落差断层创造了良好条件。

摘要：1问题我公司有四台MLS3626生料立磨．单机设计产量190t／h．主电动机功率2200kW。立磨采用三只液压拉杆给磨辊加压，在拉杆和圆柱空心体上口，用螺栓压紧两组剖分团环，利用立磨内部的负压来密封。拉杆在上、下运动时，与下一组剖分圆环存在摩擦，使拉杆磨损严重（见图1）。

摘要：As a kind of landscape resources, agricultural landscapes play a crucial role in rural tourism. It is a new attempt by taking agricultural landscapes into the development system of scenic spot for their mutual support and promotion. With the detail plan of Yanmen Mountain Scenic Spot in Zhaixing Mountain Scenic Area as a study case, the authors studied how to take agricultural landscapes into the development system of scenic spot.