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- This paper analyzes the stability of hydraulic support when it's. 分析了液压支架横向受力时的稳定性,并提出了提高其稳定性的措施。
- DZ type outside-pourable monomer hydraulic supports are hydraulic timbering facilities used in coal mine at large. DZ型外注式单体液压支柱 ,是煤矿普遍使用的液压支护设备。
- Using hydraulic supports in heavy grade longwall face with sublevel caving,anti-topple and antiskid are the key factors. 在大倾角倾斜煤层进行综放开采,支架的防倒、防滑成为决定放顶煤开采成功与否的关键。
- Through the quantitative analysis about base cracks of sublevel caving hydraulic supports,some useful measures were taken, effect is well. 通过对放顶煤支架底座开裂原因作定性定量分析,提出了合理的修复措施,修复后,使用效果很好。
- This paper analyzes the stability of hydraulic support when it's forced crosswise and puts into the method of raising the stablilty of supports. 分析了液压支架横向受力时的稳定性,并提出了提高其稳定性的措施。
- Due to problems of the current sublevel caving hydraulic supports,a low and light-duty integrated caving hydraulic support is developed. 分析了现有低位放顶煤液压支架存在的问题,提出了一种新型轻型低位放顶煤液压支架。
- In large dip angle mining face,the antis-kid and anti-collapse question on hydraulic support is a key to mining successfully. 在大倾角工作面中,液压支架的防倒防滑问题是工作面能否顺利实现开采的关键。
- The middle pan of scraper conveyor not only is main transport passage way of coal face,but also the base of shearer haulage and connector with hydraulic supports. 刮板输送机中部槽是输送煤炭的通道,是采煤机运行的基座,是液压支架的连接体,对其进行优化设计可以降低生产成本,提高整机的可靠性。
- Necessity of increasing hydraulic support's reliability in working field is expounded, using status development tendency and reliability of hydraulic support are analysed. 阐述了提高工作面液压支架可靠性的必要性,并从液压支架的使用现状、发展趋向及提高可靠性应采取的措施方面加以分析介绍。
- The overall performance of the production line after the upgrading of the hydraulic support to accelerate and improve the development cycle and product quality,has a gre... 生产线整体性能经提升改造后,对加快和提高液压支架的研制周期和产品质量,具有重要的意义和价值。
- The high mining height hydraulic support is designed for the special geologic condition of Shangwan Coal Mine,such as shallow buried depth,thin bed rock and thick aeolian sand. 大采高液压支架是针对上湾矿煤层浅埋深、薄基岩、厚风积沙等特定地质条件而研制的一种高性能综采液压支架。
- This paper introduces the design of light-duty roof caving coal hydraulic support equipped with flat tramcar and transport ation on ground and under ground. 介绍轻型放顶煤液压支架(下文简称轻放支架)配套平板车的设计过程及轻放支架在煤矿地面、井下的运输过程。
- Directing to the of the large post rising clinker and roof beam post cap fo ZY4000/14/32 type shield hydraulic support are analyzed,and puts forward a plan to repair. 针对ZY4000/14/32型液压支架的部分大立柱涨缸及顶梁柱帽的损坏情况进行分析,并对顶梁柱帽提出了修复方案。
- Removing hydraulic support in the fully mechanized face have already been introduced in this article,the removal chunnel of form,method,order are explained. 介绍了综采工作面液压支架回撤通道的形成、方法、顺序。
- Located in the west of Beijing, Beijing Yutian Century Mining Equipment Co. Ltd. (hereinafter referred to as "the Company") is specializing in manufacturing light hydraulic support. 北京宇田世纪矿山设备有限公司，地处风景秀丽的北京西郊，专业生产轻型液压支架。
- In view of the strong labor intensity,low efficiency and plentiful insecurity factors during the installation and dismantlement of hydraulic support, a special dismounting crane is designed. 针对液压支架在井下安装和拆除作业中存在的劳动强度大,生产效率低,不安全因素多的现实,研制出专用拆装吊车。
- Proper for all series of truck crane, heavy truck, oil derrick, high temperature blower, large scale excavator, self-dumping truck, drilling rig, mining hydraulic support, steel structure and so on. 适应于各类起重吊车、重型汽车、石油井架、高温风机、大型电铲、自卸车及钻机、煤矿液压支架、钢结构等。
- The paper ansyslze and discuss the seal structure、the area of valve spool and the Minimize spring force in the operating system of the hydraulic supporter. 用插装阀设计了液压支架立柱控制系统,结合液压支架的工况对二通插装阀的阀芯结构、密封结构等问题进行了分析和探讨。
- Jilin Jiangshan Heavy Industry Group Co., Ltd. is specialized in the production of shearer, scraper conveyor, hydraulic supporter, tunneling machine and large excavators. 简介：吉林省江山重工集团有限公司是我国专业生产采煤机、刮板输送机、液压支架、掘进机、挖掘机的大型重工企业。
- This paper introduces state of mining and reserving of thin and almost thin seam,analyses technology and methods of mining thin seam,meanwhile discusses design of hydraulic support in thin seam. 介绍了我国薄、极薄煤层赋存及开采状况,分析了薄煤层开采的技术及方法,并对薄煤层液压支架的设计进行浅探。
