FIELD: mining, particularly to suppress underground fires in coal mines originating from methane and/or coal dust explosion.
SUBSTANCE: device comprises explosion indication flag having shaped member on shaft thereof. Lever is supported by the shaped member from the side of long arm thereof. Short lever arm rests upon fixed axis. Device has flexible tie secured to lever by the first end thereof and passing over pulley. Another flexible tie end is secured to double-sided rack provided with weight. One rack side is brought into engagement with toothed wheel having shaft fixed to pipeline closing valve spindle. Another rack side is brought into engagement with the second toothed wheel having shaft fixedly connected to pipeline opening valve spindle. The pipeline connects antipyrogen vessel with fire pipeline.
EFFECT: increased reliability and mining safety.
2 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| DEVICE FOR AUTOMATIC FIRE PIPELINE OPENING | 2005 |
|
RU2307939C1 |
| FIRE BARRIER | 2006 |
|
RU2323342C2 |
| SYSTEM FOR CONFINEMENT AND SUPPRESSION OF METHANE-AIR MIXTURES AND/OR COAL DUST EXPLOSIONS IN MINES NETWORK | 2009 |
|
RU2400633C1 |
| METHOD FOR FIRE PROTECTION OF VEHICLE AND DEVICE FOR ITS IMPLEMENTATION | 2019 |
|
RU2714338C1 |
| GRAVITY-OPERATED CARRIER | 1994 |
|
RU2106274C1 |
| ARRANGEMENT FOR CONTINUOUSLY WINDING THREAD-LIKE MATERIALS ON SPOOLS | 0 |
|
SU691225A2 |
| GRIPPER FOR HANDLING RECTANGULAR ARTICLES | 0 |
|
SU919881A1 |
| METHOD OF REDUCING ENDOGENOUS FIRE HAZARD OF EXCAVATED SPACE | 0 |
|
SU1208268A2 |
| WHEEL GRAVITATIONAL VEHICLE | 1988 |
|
RU2016783C1 |
| 0 |
|
SU201894A1 |
