Traditional process method is one-step process, produced during the prophase of partial vanadium or more vanadium acid ammonium water filter cake into reverberatory oxpatiation long time gradually finish drying, heat off ammonium, melting process.
The one-step simple process, the main problems of
High energy consumption, energy efficiency, low return less than 30%, currently can achieve recovery in 95% ~ 97%, environmental pollution, melting vanadium generated in ammonia universal emissions into the air, causing air pollution, working environment, due to poor sealing is bad, produce the dust and smoke affect the environment and workers' health
My company design of preparing slice vanadium three-stage method to process
Three-stage method to process, namely dry, take off ammonium, melting, divide three process finished
First will vanadium bread by drying machine to dry powder, via off ammonium equipment off by melting furnace, ammonium melting
Using flash drying method, forthcoming vanadium bread by feeding into dry inside machine, heating of hot air into the dryer. In mechanical scattered, under the action of vanadium bread into powder, forming a rapid drying powder more vanadium acid amines.
Using flash perez DE stoves calcining stoves, will achieve rapid off ammonium dried powder vanadium continuous into off ammonium furnace, the heating of the heat air into the furnace, take off ammonium with into furnace in rapid mix, powdery vanadium continuous flow, achieve rapid decomposition by dozens of seconds after decomposed into V2O5 powder vanadium.
In the melting process mainly adopts three-phase arc furnace, radiant tube melting furnace, flash melting furnaces. Radiant tube melting furnace, flash melting furnaces is rapidly melting vanadium piece of new furnace type, mainly by the flash melting chamber, heat preservation of molten pool constitutes. |
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| Advantages︰ | Melting speed, melted, high strength, cover an area of an area small,
Energy-saving significantly than traditional way, can save energy consumption by 50%
, recovery can be > 99% |
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