回风巷

在垂直工作面推进方向上呈“J”字型，且对回风巷附近气体密度影响较大；

The direction of perpendicular to face advance shows J shape and the influence is bigger near the return airway .

根据模拟结果，分析出在允许的时间和温度范围内，火源位置与回风巷壁面最高温度位置随着氧化时间和火源温度的增加，变化较小。

According to the simulation results , the position of fire source and the position of the highest temperature in the wall of return airway have a very small change with the increase of oxidation time and fire source temperature .

采空区边缘回风巷合理位置的研究

Study on reasonable position of air-return roadway near the edge of goaf

新型回风巷超前支护支架组的设计

A New Type Advance Timbering Support Set for Air-return Gate

22121回风巷煤与瓦斯动力现象的成因探讨

The Cause of 22121 Wind Alley Coal and Fas Power Phenomenon is Discussed

回风巷雾柱降尘联动装置研究

Research on dust control linkage device of water spraying props in air return way

“三软”煤层高地压条件下回风巷布置技术

Layout of the return airways on the condition of " three - soft " coal seam with high pressure

该项研究在漳村1310综放面回风巷的工程实践中得到了成功应用和检验。

This technique has been used successfully in the air-return gate oJ '1310 fully mechanized roof coal caving face in Zhangcun Coal Mine .

但在此项技术推广应用过程中，经常遇到的难题之一是综放面运输巷、回风巷的维护问题。

During the application of the technology , one of the difficult issues was to maintain and support the gateways of the full-mechanized caving face .

沿空留巷是在上区段工作面采过后，将运输巷保留下来作为下区段工作面开采时的回风巷。

Reserving roadway along goaf is a ventilation roadway , which was a transportation roadway retained as a ventilation roadway of next session after the working face exploitation of last session .

认为钻孔的破坏是随着工作面推进而发生的动态过程，布置在靠近回风巷侧钻孔更加稳定。

The result shows that the borehole destruction occurs in the dynamic process of coal face advancing , and it is more stable when the borehole location is close to tailgate .

介绍了小青矿在工作面运输巷和回风巷采用钢带锚网支护和大截深采煤机的使用情况，总结了取得的经济效益。

Provided some informations about the bolting with steel band and wire mesh and depth-web shearer using under the situation in haulage gateway and ventilating gateway in Xiaoqing coal mine shaft and achieved considerable economic benefits .

要提高其通风和治理瓦斯的能力，进而提高工作面单产量，则必须提高其沿空回风巷瓦斯允许浓度或风速。

That if its abilities of ventilation and controlling gas would be increased , moreover single yield of coal face is increased , the permission concentration of its air return way along the stope or wind speed must be increased .

通过对回采面利用局扇进行辅助通风，改善回采面通风条件，增加供风量，减少进回风巷之间漏风，实现回采面安全高产。

The use of auxiliary fans for local ventilation of working face can improve the ventilation conditions of the face , increase the quantity of air supply and reduce air leakage between intake and return air ways , and thus realize the safety and high productivity of the working face .

寺河矿井西总回风大巷快速施工法

Fast driving method of west main return air roadway in Shihe mine

补强加固技术在-100m回风大巷的应用

The Technique Applied for Reinforcing the-100m Main Return Way

高河矿井+450m水平总回风大巷锚杆支护技术

Technology of Anchored Bolt Supporting for Main Return-air Roadway at + 450m Level in Gaohe Mine

多级机站通风系统是在井下设立若干个风机站，接力将地面新鲜风流经井巷送入矿山井下作业地点，而污风由同样级数风机站经回风井巷排出地表。

Multi-stage fan station in the mining ventilation system is the establishment of a number of fan stations , relaying from ground by the fresh airflow into the underground mine sites , while polluted air through the same stages from wind-returning roadway to the ground surface .