FIELD: oil and gas industry.
SUBSTANCE: test rig to study effect of explosion products on the stem of the blast holes including HP chamber covered from top by lid with membrane connected with blast hole simulator, made in form of pipe, according to the invention HP chamber is additionally provided with launching device for forced destruction of the membrane upon achievement of the set pressure in HP chamber.
EFFECT: assurance of set air pressure on stem in the blast hole simulator by forced destruction of the membrane.
4 dwg
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