METHOD OF PREPARATION AND DEVELOPMENT OF EXTRACTION UNIT BY DIAGONAL CHAMBERS Russian patent published in 2019 - IPC E21C41/20

Abstract RU 2709266 C1

FIELD: mining.

SUBSTANCE: invention relates to mining industry and can be used in development of potassium deposits. Passing panel workings, block preparatory workings, mating upper and lower formation with ventilation well, cleaning chambers pass at an angle to block preparatory mine workings. Chambers are driven by blind end face with the help of cutter-loader. One block preparatory development with length of not more than 400 m passes along each formation. Continuous delivery systems are used for ore transportation.

EFFECT: invention makes it possible to pass minimum number of preparatory developments and to reduce terms of preparatory works due to reduction of length of extraction unit and use of means ensuring continuous delivery to panel openings.

4 cl, 2 dwg

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RU 2 709 266 C1

Authors

Chernopazov Dmitrij Sergeevich

Sekuntsov Andrej Igorevich

Dates

2019-12-17—Published

2019-03-06—Filed