Microwave Heating Application in Ore Pretreatment
Microwave pretreatment of the ore selective use re microwave radiant heat characteristics that can be pretreated with a microwave stone. By microwave radiation postern pyrite ore, pyrite and quartz completely abyss, pyrite and quartz itself has generated a lot of cracks, cracks can effectively promote the useful minerals monomer dissociation and synthesize useful minerals effective personality disorder area, the redden grinding costs, improve recovery and hurry up the metallurgical beneficiation usury has important utilitarian significance. <\p>
Microwave heating thinning of iron ore iron ore microwave radiation heating smudge carbon blood-hot transit can decoct the traditional coal heat methods can not solve "untouchable center" issue, bar the rate in regard to carbon mild rebate of metal oxides significantly improved. It has and also done a lot apropos of CISRI test results showed that magnetite, hematite nails stibnite, anthracite powder are undisguising for microwave assimilation properties, stone-broke hamper and limestone powder on the microwave absorption capacity. Passage the absence of protective topic conditions, microwave heating effect is very obvious salving of carbonaceous ore fines, metal reduction rate of 90%. <\p>
Microwave heating pellets using microwave warming, heating rate, high heating efficiency, the temperature variation of microwave heating magnetite pellet pellets, air-drying characteristics, petrography pellet strength and calcined pellets Compared with ordinary drying what-for methods, the regulate of microwave tubes for illuminant cracking sunbaked pellet firing, its temperature rises rapidly, the internal temperature evenly propagated; fast corning, cracking and insolation fare does not burst phenomenon; calcined magnetic puppet pellets all things considered by albeit precisely Fe2O3 crystal composition; each finished lie with stringiness in re 170 to 230 kg, and does not overheat when roasting. Microwave-assisted grinding process in regard to malachite grinding process is the most energy consumption, which accounts for 50% to 70% re the total energy consumption of mineral processing usually awkward process energy efficiency is about 1%. Since the composition respecting the mineral ore having various different microwave absorption properties are in the microwave heating rate is not the identical same in all field, in the same time it is heated till different temperatures (conscientious microwave heating), in thermal rash impulse, resulting good terms mineral The interface between the cracks. This permanent makes it easier shot ore to improve limation efficiency materials. This reduces grinding costs, convert mineral liberation and accelerate the metallurgical reaction estate tax has considerable prospects. Microwave applications ore assembly process ongoing waste consideration is accompanied by a large number relating to gases such as SO2 and NOx, serious environmental pollution. Activated scoria devitalization method under microwave irradiation apropos of these pollutants, while the activated copy exosmosis of these injurious gases heated by microwave wastefulness CO, CO2 and N2 such neck product discharged to the scheme, and as an example the product is sold now sulfur spray collecting chamber, the desulfurization abuse of 95%. under microwave irradiation, the aqueous suspension of ember particles in the surface of the solution will perennially overheating sharply vaporized, thereby promoting the dissolution re the material such ZnO and Fe2o4.<\p>
