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2 133 010

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C1

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IPC

(21) (22)

Application

95102665/03, 1995-02-23

(22)

Actual filing date

1995-02-23

(45)

Published

1999-07-10

(72)

Inventor

Pokrovskij B.V.Karapetjan Ju.M.

(73)

Holder

Vostochnyj Nauchno-Issledovatel'Skij Gornorudnyj Institut

PROCESS OF BREAKING OF MINERAL RESOURCES Russian patent published in 1999 - IPC

Abstract RU 2133010 C1

FIELD: mining industry, exploitation of deposits by open or underground methods. SUBSTANCE: process lies in multirow drilling of holes, in their charging with explosives and in their blasting in certain sequence. Specific feature of process consists in such arrangement of holes in rows when one hole is placed after pair of holes and single and paired holes of each next row are displaced relative to preceding row by value found from mathematical expression. In this case charges of paired holes in row are exploded simultaneously and with delay with reference to charges of single holes. EFFECT: enhanced efficiency of explosion. 1 dwg

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RU 2 133 010 C1

Authors

Pokrovskij B.V.

Karapetjan Ju.M.

Dates

1999-07-10—Published

1995-02-23—Filed

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