Filling medium compression section rectangular waveguide for fracturing rock

Abstract

The invention relates to a rock crushing technology, and belongs to the technical field of rock auxiliary crushing by focusing high-power industrial microwaves through a rectangular waveguide with a compression section of a filling medium. The device mainly comprises a standard waveguide flange, a standard waveguide section, a variable cross-section waveguide section, a wedge-shaped dielectric medium, a compressed cross-section waveguide and a protective cap. The standard waveguide flange is connected with a flange of the microwave generation and regulation device; the standard waveguide section is connected with the variable cross-section waveguide section and the compressed cross-section waveguide section in sequence; the wedge-shaped dielectric medium is arranged in the variable cross-section waveguide section and the compressed cross-section waveguide section; the protective cap is installed at the tail end of the compressed cross-section waveguide section. According to the invention, the waveguide size is compressed by filling the dielectric medium, the microwave power density at the waveguide outlet is improved, and the device is used for fracturing hard rock, assists a machine in efficient crushing and has great application prospects and value.

Description

technical field [0001] The invention relates to a rock breaking technology, in particular to a rectangular waveguide device with a filling medium compression section for cracking rocks. Background technique [0002] In the process of mechanical rock foundation, tunnel engineering, and underground engineering construction, the efficient crushing of hard rock and extremely hard rock is a technical challenge that needs to be solved urgently. The solution mainly includes two aspects: one is to continuously improve the performance of rock excavation and crushing equipment; the other is to use auxiliary methods to weaken or soften hard rock to make it easier to be broken mechanically. The research on industrial microwave weakening or breaking rock originated in the former Soviet Union in the 1960s and 1970s, and researchers successfully applied it to tunneling in phosphorite mines. The research shows that when industrial microwaves are used to irradiate the entire section of the ...

AI Technical Summary

Problems solved by technology

The microwave applicator is the core component for the microwave to act on the rock surface. At present, there is no standard product to choose from, and it needs to be customized according to the demand.

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