| 摘要 |
FIELD: mining industry, particularly for extinguishing coal fires in storehouses, in coal store banks, piles, and dumps. ^ SUBSTANCE: device includes tubular rod with delivery chamber connected to one end thereof. Rod is formed of detachable sections. Contacting with rod is hand-wheel for rod rotation. Hand-wheel may be displaced along rod length. Another rod end has perforated head provided with screw vane. Delivery chamber has fill opening and inlet channel to be sealed. ^ EFFECT: increased serviceability, easy mounting and remounting. ^ 6 cl, 4 dwg |
