Microwave processing device for dump leaching uranium ores
A microwave treatment and uranium ore technology, applied in microwave heating and other directions, can solve the problems of large microwave reflection coupling, poor microwave power matching, and difficulty in improving the heap leaching rate
Active Publication Date: 2013-04-24
NANHUA UNIV
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Problems solved by technology
When using these traditional microwave equipment to process heap leaching ore, there are disadvantages such as poor microwave power matching, large microwave re
Method used
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Embodiment 1
[0037] Embodiment 1: A kind of heap leaching uranium ore microwave processing equipment, consists of 16 microwave units 1 (①- ), material conveying system 2, bracket 3, temperature measurement and control system 4 and microwave suppressor 5. The total length of the equipment is 1950 cm, and the total length of the microwave unit part is 1600 cm. There are 16 microwave units in total, starting from the feeding end, followed by microwave units ①- , each microwave unit consists of a microwave power source and a microwave heating cavity. The microwave power source is composed of magnetron 1.1 and microwave high-voltage transformer 1.2; the microwave heating cavity is composed of waveguide 1.4, power feed port 1.5, material chamber 1.6, moisture discharge port 1.7, operation window 1.8 and lighting port 1.9. The magnetron used in the microwave power source is a 1 kW continuous wave water-cooled magnetron 1.1; the microwave high-voltage transformer 1.2 used is a 7.5 kg all-copper...
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Abstract
The invention discloses a microwave processing device for the dump leaching uranium ores. The device uses microwave to carry out irradiation to dump leaching uranium ores, due to the fact that differences exist among the microwave temperature rising effects of different minerals inside the uranium ore particles, heat stress differences are generated among the different minerals inside the uranium ore particles, the grain boundaries of the different minerals inside uranium ore particles break and the cracks inside the particles extend, therefore the poriness of the uranium ore particles is increased, the permeability of the inner portions of the uranium ore particles is improved, the dissociation degree of the uranium ores is improved, the leaching efficiency of the dump leaching of the uranium ores is improved, and a leaching period is shortened. The whole equipment comprises 16 microwave units, a material conveying system, a support, a temperature detecting and controlling system and a microwave suppressor. When the microwave processing device for the dump leaching uranium ores is used to process the dump leaching uranium ores, the microwave processing device has the advantages of being good in the matching of microwave power and the uranium ores, low in processing energy consumption, large in processing quantity, stable in material conveying, and small in microwave leakage, the poriness of the uranium ores and the dissociation degree of the uranium ores are further improved, the leaching efficiency is further improved, and the leaching period is further shortened and the like. The microwave processing device for the dump leaching uranium ores is also suitable for the processing of dump leaching gold ores, dump leaching copper ores and other dump leaching ores, and has obvious effect in increasing poriness of ore particles, improving the permeability of the inner portion of the ore particles, improving the dissociation degree of useful ores, improving leaching efficiency, and shortening leaching efficiency.
Description
technical field [0001] The invention relates to microwave treatment equipment for heap leaching uranium ore, in particular to a method of using microwave irradiation to increase the porosity in uranium ore particles, improve the permeability in uranium ore particles, and increase the dissociation degree of uranium minerals, thereby increasing the uranium ore Microwave treatment equipment for heap leaching uranium ore that improves the leaching rate of heap leaching and shortens the leaching cycle. Background technique [0002] Heap leaching is to spray the leaching solution on the ore or waste rock pile, and selectively dissolve and leach useful components in the ore or waste rock during the process of seepage into the heap, so that it can be transferred into the leaching solution. In order to further extract or recover this useful component a method. At present, heap leaching is an effective and economical method for large-scale processing of lean ore, tailings, waste ore ...
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Login to view more IPC IPC(8): H05B6/78H05B6/80
Inventor 丁德馨胡南李广悦陈文光戴四元叶勇军王永东
Owner NANHUA UNIV
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