A multi-mode microwave heating chamber for processing heap leached uranium ore

Abstract

The invention discloses a multi-mode microwave heating cavity for treating dump leaching uranium ore. The multi-mode microwave heating cavity comprises fifteen microwave power feeding ports and waveguides, two illuminating ports, a humidity-discharging port and an openable operating window. Energy is fed back by adopting a plurality of ports, the ports are isolated from one another by appropriate distances, microwave power enters a box body at different phases, distribution of each path in maximum modes is formed in the box body after repeated reflection for obtaining higher field uniformity, and meanwhile, sufficient microwave power density can be achieved in the box body in a power synthesis way. The multi-mode microwave heating cavity is further characterized in that energy is fed back through two paths of waveguide ports in a 90-degree orthogonal polarization way, so that power coupling among the ports is reduced. The multi-mode microwave heating cavity can be applied to a microwave treatment system for dump leaching uranium ore, and is also suitable for microwave drying equipment, microwave sterilizing equipment and microwave high-temperature baking equipment of various types. The multi-mode microwave heating cavity has the advantages of high matching property among power feeding ports, low microwave reflectivity, uniform energy density, high coupling property with materials, high heating efficiency, small microwave leakage, use safety and the like.

Description

technical field [0001] The invention relates to a heating cavity used in microwave heating equipment, in particular to a multi-mode microwave heating cavity applied to a microwave processing system for heap leaching uranium ore. Background technique [0002] At present, my country's national defense construction and nuclear power construction are developing rapidly, and the demand for natural uranium is also increasing accordingly. This requires the development of new mining and smelting technologies to meet the demand for natural uranium in national defense construction and nuclear power construction. Surface heap leaching uranium has the outstanding advantages of simple process and low cost, and has become the main process of natural uranium production in my country. However, my country's surface heap leaching uranium extraction process still has outstanding problems such as low leaching rate and long leaching cycle, which seriously restricts the improvement of natural ura...

AI Technical Summary

Problems solved by technology

[0006] In view of the above situation, the object of the present invention is to provide a multi-mode microwave heating chamber applied to the microwave treatment system of heap leaching uranium ore, which is used to develop the microwave treatment system of heap leaching uranium ore, so as to accelerate the leaching of uranium and shorten the leaching cycle , Improve the leaching rate, thereby improving the economic benefits and resource recovery rate of uranium ore heap leaching, so as to solve many shortcomings of the existing microwave heating chamber

Images