DW型矿用外注式单体液支柱.docVIP

PAGE PAGE 21 DW型矿用外注式单体液压支柱 The DW outer-injected individual hydraulic prop in mining 使用说明书 The instruction book 推行标准：MT112—93 The operating standard : MT112—93 徐州矿务集团机械厂 The Machine Making Factory of Xuzhou Mining Company Group （徐 州 华 东 机 械 厂） (Xuzhou Machine Making Factory in East China) 2003.4 前 言 Preface DW型矿用外注式单体液压支柱，系煤炭工业部煤炭科学研究院设计，由我厂制造的煤矿支护产品。 The DW outer-injected individual hydraulic prop in mining, which is designed by Coal Academy of Sciences in Ministry of Coal Industry, is the coal mine support product manufactured by our factory. 我厂生产的DW型支柱系列，现有三种型式16种高度不同的规格，分别适用于0.55～3.5米 DW prop series produced by our factory have 3 types and 16 kinds of different specification, which are applicable to 0.55～3.5m thickness of coal seam 一、 用 途Application DW型支柱是一种外部供液的恒阻式单体液压支柱，它可与金属铰接顶梁配套使用，也可单独作点柱用，供煤矿一般机械化工作面支护顶板，或供综合机械化采煤工作面作端头支护及其它临时性支护。 DW prop is a constant resistance individual hydraulic prop of outer feed flow, which can be used with metal hinge joint top beam or can be used as an individual pillar. It can provide coal mine a general mechanized face timbering roof or provide coal mine a comprehensive mechanized face as termination point supporting and other temporary supporting. 二、适 用 范 围Applicable scope DW型支柱适用于下列煤层条件：DW prop is applicable to the following coal seam conditions. 煤层倾角小于25°的缓倾斜回采工作面；如采取一定的安全措施，使用范围可扩大到倾角25°～35°的倾斜回采工作面。 The coal bed pitch is less than 25°low pitch coal face :if take certain safety steps, the application scope can be expanded to 25°～35°low pitch coal face. 本支柱系列现有16种规格，分别适用于采高为0.55～3.5米 This prop series have 16 kinds of specification, which is applicable to 0.55～3.5coal bed respectively. 煤层顶、底板条件： The conditions of coal seam roof and floor 工作阻力为250KN的支柱 ，底板抗压入强度应为20Mpa以上工作阻力为300KN的支柱，底板抗压入强度应为28Mpa以上。如底板较软，支柱压入底板的深度以不恶化顶板的完整性及不影响支柱的回收为限。否则，应采取“穿鞋”或加大底座等措施 . The prop of working resistance fo