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- rotary main fan 对旋式主风机
- Development of Main Fan in Taiping Mine of Panzhihua Coal Group Co., Ltd. 攀煤集团太平矿主通风机的研制。
- 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。
- Then we enlarge the inlet area and the effective dimension of the main fan,and so the work performance of the main fan reaches the desinged requirment. 通过扩大风机进风口截面积和进风箱有效容积,风机的工作性能达到了设计指标要求。
- This paper analyzes the phenomenon of dongfeng well main fan breathing vibration and find out its reasons,and offers several ways of eliminating the breathing vibration. 分析了小恒山煤矿东风井喘振现象,找出了喘振产生的原因,并给出了几种消除喘振的方法。
- According to the feature of site arrangement of type GAF main fan, the performance testing method which is safe &practicable for GAF main fan is put forward. 根据GAF主通风机装置现场布置特点，提出了针对GAF主通风机安全可行的装置性能测试方案；
- This paper introduces the apparatus used for periodical testing of mining main fan function.This apparatus is simple,easy to carry,operating sparing and high precision of testing. 介绍了自制的煤矿主通风机性能定期测定仪,该仪器简单便携、操作方便、测量精度高。
- Versal demonstration and in the determination of the ventilation reversal rate,the pressure of main fan should not be lowered too much and a certain safety factor should be reserved. 通用示范和决心，通风逆转率的压力，主扇不应该降低太多，有一定的安全系数应保留。
- The main content of this paper introduces that adjusting speed and energy saving is the best plan on the main fan of coal mine,through analyzing the characterful chart of the ventilation system. 通过对通风系统特性曲线和应用实例的分析,说明调速节能是矿井主通风机改造的优选方案。
- This paper introduces the manufacture and design process of main fan wind pressure gives an alarm panalarm,analyses its working principle,function,characteristic and practicing application. 介绍了主通风机风压失常报警装置的设计和研制过程,分析了它的工作原理。
- The Regulation for the Main Fan Noise 风机噪声治理
- Transform of main fan diffuser under mine 矿井主扇扩散器的改造
- The gardener asked me for a rotary lawn mower. 园丁向我要一台旋转式割草机。
- Automatic Control on Main Fan Motor 主变风扇电机的自动控制
- Keywords main fan;actiyator;energy saving; 主扇;调速器;节能;
- main fan surface corrosion prevention 主扇表面防腐
- The main impediment to growth is a lack of capital. 影响发展的主要障碍是缺乏资本。
- Keywords monitor;main fan;alarm; 监测;主要通风机;报警器;
- the frequency conversion and tirning of main fan 主风机变频调速
- Crowds thronged the main square of the city. 城里的大广场上挤满了人群。
