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Vanadium Pentoxide (V2O5) Drying and Calcination Process
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1. Vanadium Pentoxide (V2O5) Drying and Calcination
Process
• Description
Introduction to Vanadium Pentoxide (V2O5) Drying and
Calcination:
It applies drying, decomposition and fast melting
technology to manufacture V-chips, which is the
internationally advanced process equipment.
One-step Process:
　
　　　1. Feeding Port　2. Feeding Port　3.
Burner　4.Flaker　5.V-chips
In the traditional one-step process, the water-bearing
filter cakes of metavanadate or ammonium polyvanadate
generated in prior production step are put into the
reverberatory furnace to gradually complete the drying,
deaminating, melting procedures via heating for a long
time.
The one-step process is simple, and mainly has the
following problems
1. High energy consumption, energy efficiency is less than
*0%.
2. Low recovery rate, the current reachable recovery rate
is *5% to *7%.
3. Environmental pollution, the ammonia generated from the
melting of vanadium generally is released into the air,
which causes air pollution.
4. Poor operating conditions, due to its poor air
tightness, the dust and smoke generated affect the
environment and health of workers.
Two-step V-chips manufacturing process
The three-step process developed by our company to
manufacture V-chips
Three-step process, that is, the drying, deaminating and
melting are completed in three steps.
1. First, the vanadium cake is dried by dryer to form
vanadium powder
2. The deamination via deaminating equipment
3. The melting via melting furnace
First, drying
The flash drying method is used, that is, the vanadium cake
is put into the dryer via feeder, and then the heated hot
air enters into the dryer. Under the mechanical break up
function, the vanadium cake is being fast dried into powder
to form the powdered ammonium polyvanadate.　
Second, deaminating
The flash Si De calciner is used to achieve fast
deamination. The dried powdered vanadium will be
continuously fed into the deamination furnace, and then the
heated hot air enters into the deamination furnace to fast
mix with the powdered vanadium. Under the continuous flow,
it realized the rapid decomposition to V2O5 powdered
vanadium tens of seconds later.
Heat Source
Feeding
Calciner
Ammonia Absorber
Exhaust
Gas-solid Separation
Finished Products
Third, melting
　　
In this melting process, it mainly concerns three-phase
electric arc furnace, radiant-tube melting furnace and
flash melting furnace. The radiant-tube melting furnace and
flash melting furnace are the new type of furnace to fast
melt vanadium flake, and they are mainly composed of flash
melting chamber and thermal insulation melting bath.
1. Feeding Port 2. Exhaust 3. Flaker 4. V-chips
Main features of flash melting
1. Fast melting speed, high melting intensity, small land
covering area
2. Significant energy-saving
3. Recovery rate may be greater than *9%
New Three-step Process
The application of three-step process can improve the
efficiency of V-chip manufacture, and the hot air generated
from flash melting furnace can be used as drying heat
source, which not only efficiently uses the heat, but also
effectively recovers the gasified ammonia in the air, so it
has significant economic benefits.
Enterprise Application Cases:
1. Xinxin Vanadium and Titanium Company of Chengde Steel
Factory
2. Wuhan Jianlong Company
3. Shanxi Huayuan Mining Co., Ltd.
| Pays: | Australia |
| N ° de modèle: | - |
| Prix FOB: | Obtenir le dernier prix |
| Localité: | - |
| Prix de commande minimale: | - |
| Commande minimale: | - |
| Packaging Detail: | - |
| Heure de livraison: | - |
| Capacité de Fournir: | - |
| Payment Type: | - |
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