Fireproof filter for mines preventing spontaneous ignition of dust - has fireproof cloths in housing clad with heat-insulating material and temp. sensor to control application of extinguishant

摘要

The fireproof filter is particularly for use in mines, having fireproof filter cloths and a heat-resistant housing clad with heat-insulating material on both inside and outside. A temperature monitor reacts early enough to introduce an extinguishing agent, ensuring that the external filter temperature never reaches a level at which gas or coal dust can be ignited. Typically this operation can be initiated by a feasible component.