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- mine main shaft hoisting 主井提升
- introduce the structure, disposition, control theory, functions and main characteristics of S7-400 PLC control system of changcun coal mine's main shaft hoist after upgrated and transformed. 介绍了升级改造后常村煤矿主井提升机S7-400PLC控制系统的结构、配置、控制原理、功能及主要特点。
- The paper points out the reasons of the main shaft rupturing of mine hoisting and gives out the preventive measures. 指出了提升机主轴产生实际危险截面的原因,并进行了理论分析,进而给出了预防方法。
- main shaft hoisting 主井提升
- The hoisting device serving the main shaft of Yinying Mine is not able to meet the need of production,so it is necessary to make reform for the main belt conveying equipment of the hoisting. 荫营煤矿主井提升设备不能满足生产要求,因此对设备的主胶带输送装置进行改造。
- A secondary mine passageway between two main shafts or tunnels. 次要矿山甬道矿井中连接两条大隧道的小巷道
- The hollow stemlike main shaft of a feather. 翎管羽毛的中空的茎状羽干
- The application of the system increases the safety of hoisting system and implements hoisting automatization in main shaft. 重点介绍主井信号系统结构及特点,介绍装载系统工作方式。
- The accident that occurs during the inclined shaft hoisting conveyance occupies very large proportion in all kinds of accidents in mine, and the losses caused by the accidents are relatively great. 斜巷提升运输事故在矿井各类事故中占有很大比例,事故造成的损失也较大。
- Retrograde ventilation is used for Wangjiazhai coal mine, both air leakage and ventilation resistance of the main shaft are largish. 王家寨煤矿为中央并列式通风,漏风量较大,主井通风阻力较大。
- The opposite direction airflow in Eastern Main Shaft of Certain Mine is caused by the main fan stoping work to undergo repair. 某矿东主井因停产检修、主扇停运引起了主井风流反向。
- Retrograde ventilation is used for Wangjiazhai coal mine,both air leakage and ventilation resistance of the main shaft are largish. 王家寨煤矿为中央并列式通风,漏风量较大,主井通风阻力较大。
- Huainan Banji coal mine introduces precasting in Main Shaft and ventilation shaft,and drilling shaft lining is precast construction in ground. 淮南板集煤矿主井与风井采用钻井法凿井,钻井井壁在地面预制施工。
- In accordance of the phenomenon of many ectotheca desquamations on freezing parts of main shaft in Wugou Mine,the paper analyses the causes and introduces dealing methods. 五沟煤矿主井井筒冻结段外壁多处出现剥裂现象,本文对此进行了原因分析,并介绍了处理方案。
- It s a important join component of hydrogenerator main shaft fasten joint bolt. 水轮发电机主轴联轴螺栓是水轮发电机重要的联接部件。
- The construction is implemented sequentially on the actuators,control components and locking signals,thus realizing the safe locking of shaft hoisting,and the result of application is satisfying. 通过对执行机构、控制部分、闭锁信号的分步实施,实现了对井口提升的安全闭锁的工作要求,使用效果良好。
- As a special hydrogeological condition of Guotuen Coal Mine,directly clearing away scattered coal chamber of main shaft might happen water burst accident. 由于郭屯矿井特殊的水文地质条件,直接施工主井清理撒煤硐室可能会发生突水事故,所以在施工主井清撒硐室前,进行探水预注浆工作。
- This paper introduces the factros of wear and tear about inclined shaft hoist wire rope and formed invalidity tree.It offered the reliable basis of invalidity for the mining production. 介绍了引起斜井提升钢丝绳失效的各种因素,并建立“失效树”,为煤矿生产中判断其失效原因及预防提供可靠依据。
- Keywords mine haulage;mine hoisting;main shaft;rupture;preventive; 矿山运输;矿井提升机;主轴;断裂;预防;
- The paper introduces a type of on-line monitoring and communication system for mine main ventilator's performance parameters, and describes the system principle and composition. 介绍一种矿井主通风机性能参数在线监测与通信系统,描述了系统的原理及组成。
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- 深远海浮式风电平台 - deep-sea floating wind power platform
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- 京雄高速公路 - Beijing-Xiongan expressway
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- 农业及相关产业增加值 - the added value of agriculture and related industries