Microwave heating L-type method for reducing composite strong mine pressure of thick hard roof and left coal pillar
A technology of microwave heating and leaving coal pillars, which is applied in ground mining, earthwork drilling, underground mining, etc., can solve the problems of cumbersome steps, serious working face, casualties, etc., and achieves high energy density, simple method, and easy operation. handy effect
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[0042]Example 1:
[0043]Such asfigure 1 As shown, a microwave heating L-type device for reducing the combined strong rock pressure of the thick and hard roof and the remaining coal pillars includes: high-power microwave generator, microwave power controller, circular waveguide, waveguide converter, coaxial waveguide, microwave Transmitter, temperature monitor, high temperature resistant wire, temperature sensor, data acquisition instrument, signal amplifier, signal transmission line, detection probe, water storage tank, high pressure pump, cooler, microwave generator cooling control valve;
[0044]The high-power microwave generator 1 is connected to the microwave transmitter 6 through the circular waveguide 3, the waveguide converter 4, and the coaxial waveguide 5; the high-power microwave generator 1 passes the microwave energy through the circular waveguide 3, the waveguide converter 4, and the coaxial The waveguide 5 is transported to the microwave transmitter 6, which is responsible ...
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