| 摘要 |
FIELD: mining art, in particular, construction of mixing-charging machines used for mechanized preparation and charging of holes at open mining operations. ^ SUBSTANCE: the machine has a transportation base carrying a vessel for emulsion with a charging door closed with a cover, vessels for the gas-generating agent, water and petroleum product, ammonium nitrate bin. The transportation line, proportioning pumps for supply of emulsion, gas-generating agent, water and petroleum product, static mixer of emulsion and gas-generating agent, as well as the ammonium nitrate feeder are also positioned there. The vessel for emulsion is made minimum with one additional fire-fighting hatch that is positioned in the lower part of the vessel for emulsion and has a cover installed on the body of the mentioned vessel for automatic opening of the hatch due to self-destruction of the components of its cover and/or of its locking device at heating of the vessel body for emulsion in case of fire. The cover of the charging door is made in the form of a ring installed for pressing to the door ring edge, and membrane closing the central axial hole of the ring. The membrane is made for destruction under the effect of the maximum allowable pressure of vapors inside the, bin emulsion in case of emergency. ^ EFFECT: enhanced operating safety of the machine due to its equipment with devices for prevention of origination of a blast at a rise of pressure or temperature in its vessel for emulsion. ^ 4 dwg |
