fluidized-bed roasting of can be used for oxidizing, sulfatizing,
and volatilizing roasts
The boiling roaster is also called a solid fluidized roaster, which
uses a powdery material to carry out a series of intense
calcination reactions under a certain flow of air, between a
stationary fixed bed and an air transport bed. During the roasting
process, the material is in a state of constant
motion - a state similar to the boiling of a viscous liquid, and is
therefore called a boiling roaster.
The furnace type is generally divided into two types: a straight
type furnace and an upper enlarged type furnace: a straight type
furnace. It is mostly used for the roasting of non-ferrous metal
concentrates. The calcination intensity is low, the upper part of
the furnace is not enlarged or slightly enlarged, and the
appearance is basically cylindrical. 2 upper enlarged furnace. It
was used in the early stage for the roasting of crishea of
oilohtlyByrite produced as a raw material for the production of
suliuric acid, which is mosly in the form of a block, customary
calla tump bfs). Lalee18 0h8 developed into a variety of flotation
concentrates (including non-ferrous metal flotation concentrates,
tailings of sulphur-containing tron brd was
products during beneficiation, and sulfur concentrates obtained by
flotation in order to improve the pyrite grade). The calcination of
the ofe is vedy smdn and the calcination intensity is high.
Boiling roasters have the following advantages:
1.High production intensity. Due to the close contact between the
air and the material in the furnace, the relative motion between
the airlow and the material is severe, the reaction is fast, and
the production intensity per unit area is high.
2.The heat and mass transfer efficiency is high and the reaction
speed is fast. The material boils vigorously in the furnace, and
the action of air destroys the barrier between the particles of the
material, and the specific surface area increases, and the contact
surface per cubic meter can reach 3280-49200m²;
3.A wide range of applicable raw materials. It is especially
suitable for rapid calcination of fine material.
4.the operation is simple, easy to achieve mechanization, automated
operation.
| Model | Diameter (mm) | Capacity (t/h) | Power(kw) | Weight (t) |
|---|
| ZLFT - 0.6m² | 900 | 0.1 - 1.2 | 5.5 - 7.5 | 3.5 |
| ZLFT - 1.1m² | 1200 | 0.3 - 2.7 | 11 - 15 | 5.9 |
| ZLFT - 3m² | 2000 | 1.1 - 3.5 | 22 - 30 | 17 |
| ZLFT - 5m² | 2600 | 3.8 - 7.9 | 30 - 45 | 26 |
| ZLFT - 16m² | 4600 | 15 - 30 | 90 - 110 | 55 |
| ZLFT - 32m² | 6400 | 26 - 60 | 132 - 180 | 98 |
