Coal rock microwave experimental device and experimental method

By designing a microwave experimental device for coal and rock, and employing two types of microwave generators and multi-dimensional experimental simulation methods, the problem of the single function of existing devices has been solved. This enables efficient pyrolysis of coal and rock and safe and environmentally friendly experimental simulation, supporting in-situ transformation research of coal and rock.

CN122282807APending Publication Date: 2026-06-26PETROCHINA CO LTD +2
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
PETROCHINA CO LTD
Filing Date
2024-12-26
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

Existing microwave experimental devices have limited simulation functions and lack systematic physical simulation experimental devices, which restricts the widespread application of microwave technology in the field of coal and rock processing.

Method used

A microwave experimental device for coal and rock was designed, including a microwave generation system, a coal and rock loading body, and a control and detection system. Two microwave generators were used to simulate the temperature field-electromagnetic field expansion law of coal and rock by single-frequency and dual-frequency microwaves. Combined with gas protection and purification mechanisms, multi-dimensional experimental simulation of coal and rock was realized.

Benefits of technology

It improves the simulation function of microwave experiments, increases the pyrolysis efficiency of large coal and rock, enhances the safety and environmental friendliness of experiments, provides important experimental data to support on-site production control, and enriches the ways in which microwave radiation affects coal and rock and the simulation effect.

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Abstract

This application discloses a microwave experimental apparatus and method for coal and rock, solving the technical problem of limited simulation function in existing microwave experimental apparatuses. The apparatus includes a microwave generating system, a coal and rock loading body, and a control and detection system. The microwave generating system comprises a shell, a first microwave generator, and a second microwave generator. The first microwave generator is fitted onto the second microwave generator with a gap to form an annular cavity for interacting with the coal and rock. The control and detection system includes a controller and gas monitoring devices, temperature monitoring devices, and pressure monitoring devices located in the shell. The controller is connected to the first microwave generator, the second microwave generator, the gas monitoring devices, the temperature monitoring devices, and the pressure monitoring devices. This method increases the pyrolysis efficiency for large coal and rock blocks, allows for the study of the effects of two radiation methods, and enhances the simulation function of microwave experiments, which is significant for supporting research on in-situ coal and rock transformation.
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