SAFE AND ENVIRONMENT-FRIENDLY ROCK BLASTING DEVICE AND METHOD

WIPO Patent Application WO/2021/189660

A1

Disclosed is a safe and environment-friendly rock blasting device. The device comprises a controller (4), a high-voltage power supply (3), an energy storage capacitor (5), a discharging switch (6), a high-voltage electrode (8), a hole packer (9), and a water injection system, wherein the controller (4) is separately in control connection with the high-voltage power supply (3) and the discharging switch (6), and is used for controlling the high-voltage power supply (3) to charge the energy storage capacitor (5) and controlling the discharging switch (6) to be turned on and off; the energy storage capacitor (5) is connected to the high-voltage electrode (8) by means of the discharging switch (6); the high-voltage electrode (8) is used for being provided in a rock drilled hole (2); the water injection system is used for injecting water into the rock drilled hole (2); the hole packer (9) is a rubber ring hole packer and is used for sealing a hole opening of the rock drilled hole (2); the rubber ring hole packer is provided with a cable hole for allowing a high-voltage cable (7) to penetrate through; the high-voltage cable (7) is a cable connected to the discharging switch (6) and the high-voltage electrode (8); and the size of the cable hole matches that of the cross section of the high-voltage cable (7). Further disclosed is a safe and environment-friendly rock blasting method. The safe and environment-friendly rock blasting device and method have the advantages of being good in environmental friendliness and high in safety.

WO/2019/035902	RAPIDLY COOLING A GEOLOGIC FORMATION IN WHICH A WELLBORE IS FORMED
WO/2021/118521	PLUGGING DEVICES HAVING FILAMENTS COATED WITH SWELLABLE MATERIAL
WO/2018/201217	SYSTEM AND RELATED METHODS FOR FRACKING AND COMPLETING A WELL WHICH FLOWABLY INSTALLS SAND SCREENS FOR SAND CONTROL

NIE BAISHENG (CN)
MENG JUNQING (CN)
LI XIANGCHUN (CN)
LI CHANGXING (CN)
WANG KEDI (CN)

PCT/CN2020/094062

September 30, 2021

June 03, 2020

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UNIV CHINA MINING (CN)

E21B43/26

CN109538209A	2019-03-29
CN104453827A	2015-03-25
CN104481574A	2015-04-01
CN110670902A	2020-01-10
CN109138956A	2019-01-04
RU2090747C1	1997-09-20

BEIJING GAOWO LAW FIRM (CN)

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