由煤科总院太原分院设计、船舶总公司平阳机械厂制造的国家“七五”攻关项目“TZ510—7/14型六柱双伸缩支撑掩护式液压支架”,型式试验和井下试验超过攻关指标,已在山西省大同矿务局燕子山矿通过了由中国统配煤矿总公司、煤炭科学总院、国家支护设备检测中心等单位组织的技术鉴定。填补了国内六柱双伸缩支撑掩护式薄煤层液压支架的一项空白。 It was designed by Taiyuan Branch of Coal Science and Technology Institute and “TZ510-7 / 14 type six-post double-telescopic support shield type hydraulic support” manufactured by Pingyang Machinery Factory of National Shipbuilding Corporation in the “Seventh Five-Year Plan” project. The type test and downhole test exceed the research target , Has been in Shanxi Province Datong Mining Bureau Yanzishan mine adopted by the China General Coal Mine Corporation, Coal Science Institute, the National Support Equipment Testing Center and other units of the organization’s technical appraisal. Fill the domestic six-post double-telescopic support thin coal seam hydraulic support a blank.