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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.
Country: | Australia |
Model No: | - |
FOB Price: | Get Latest Price |
Place of Origin: | - |
Price for Minimum Order: | - |
Minimum Order Quantity: | - |
Packaging Detail: | - |
Delivery Time: | - |
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