Ventilation device of one-headed tunneling roadway
The utility model provides a ventilation device of a blind heading roadway. The ventilation device comprises a fluid pressure feeding device and a fluid conveying structure. The fluid pressure feeding device comprises at least two fans which are tightly attached to the inner side wall of the side ed...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The utility model provides a ventilation device of a blind heading roadway. The ventilation device comprises a fluid pressure feeding device and a fluid conveying structure. The fluid pressure feeding device comprises at least two fans which are tightly attached to the inner side wall of the side edge of the roadway. The air inlet of the fan close to the inlet of the roadway is communicated with the outside of the roadway opening through an air inlet pipe, and the air outlet of the fan close to the working surface of the roadway is connected with an air outlet pipe; the fluid conveying structure comprises an air duct arranged between every two adjacent draught fans. By means of the ventilation device, the problems that in the prior art, according to a traditional press-in type ventilation method, due to the fact that the pressure of a draught fan is limited, the air pressure is reduced in the conveying process, fresh air is reduced when the air reaches an operation site, the temperature rises, harmful gas is |
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