● HG Direct Heating Revolving Cylinder Drier
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 Working principle:
When the damp raw material is fed from one terminal ,it is tumed over through blades that are distributed inside the cylinder and will be distributed uniformly in the drier and contact fully with the countercurrent hot air. in this way . the process of heat conduction is increased. During the period of dry . under the effect of incine blades and hot air stream ,raw material can be moved to the star section of drier and discharged from disharged form discharging valve.
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Features:
High in the etent of mechanization and strong in production capacity.
The resistance for fluid passing through the cylinder is small . The consumption of power and energy is low.
It has strong adaptability to the properties of raw material.
The operation is stable .The cost of operation is cheap .The uniformity of dried substance is good. |
Application:
it is suitable for drying the following raw materials .They are granules with heavy specific gravity in chemical industry , mine industry , metalturgy industry such as ore , slag , coal , metallic powder , phosphorus fertilizer , ammonia sulfate. Moreover for raw materials that are granules with special requirements , such as HP vesicant Jess , light calcium carbonate , active white earth, magnetic powderrn , graphite , lag of medicine and raw materials that need Iow temperature and in batch continuously. |
Technical Parameter：
| form |
unit |
heat directly
down scream |
heat directly
coutercurrent |
compound heating |
| kinds of raw materials |
|
ore |
HP vesicant |
ore residue of blast furnace |
ammounium sulfate |
phlsphorus fertilizer |
|
| amount to be treated |
kg/h |
1000 |
466 |
15000 |
20000 |
12000 |
5000 |
| primary content of water |
% |
30 |
13 |
6 |
1.5 |
5 |
6.5 |
| fina content of water |
% |
15 |
0.3 |
1 |
0.1 |
0.1 |
0.1 |
| average diameter |
mm |
6.5 |
0.05 |
4.7 |
0.5-1.7 |
0.5 |
5 |
| bulk density of faw material |
kg/m3 |
770 |
800 |
1890 |
1100 |
1500 |
750 |
| amount of hot air |
m3/h |
39000 |
5400 |
10750 |
9800 |
6500 |
16000 |
| temperature of air inlet |
℃ |
600 |
165 |
500 |
180 |
650 |
570 |
| temperature of raw material at outlet |
℃ |
|
42 |
100 |
70 |
80 |
75 |
| heating way |
|
gas |
stem way十electric heating |
heavy oil |
coal hot air furnace |
heavy oil |
heavy oil |
| loading coefficient |
% |
|
6.3 |
7 |
7.5 |
7.8 |
18 |
| speed |
r.p.m |
4 |
4 |
3.5 |
3 |
4 |
2 |
| gradient |
m/m |
0.04 |
0.005 |
0.03 |
0.05 |
0.05 |
0.043 |
| diameter of drier |
|
12 |
24 |
12 |
22 |
|
6
12 |
| amount of blade |
m |
2.0 |
1.5 |
2 |
2.3 |
inner cylinder 0.84 outer cylinder 2 |
inner cylinder 0.95 outer cylinder 2.4 |
| length of drier |
m |
20 |
12 |
17 |
15 |
10 |
16 |
| power of driving |
kw |
22 |
7.5 |
15 |
11 |
11 |
15 |
|
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