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Sub-Bituminous Coal Dryer with Low Temperature Drying
Product Overview
A Sub-Bituminous Coal Dryer with Low Temperature Drying is an advanced thermal processing system specially engineered to reduce the high inherent moisture of sub-bituminous coal. By operating at controlled low temperatures (typically below, it safely evaporates moisture without igniting the coal's high volatile matter or degrading its structural integrity, significantly upgrading lower-rank coal into a high-value fuel.
Working Principle
Low-Temp Heat Supply: Low-grade waste heat, low-pressure steam, or warm flue gas is directed into the drying system (such as a fluid bed or rotary steam tube dryer).
Gentle Moisture Extraction: The coal is fluidized or gently agitated, allowing low-temperature hot air or indirect steam surfaces to gradually strip away moisture without thermal shock.
Inert Gas & Exhaust Management: Closed-loop air circulation and low oxygen levels maintain a safe environment, while moisture-laden vapor is evacuated and fine dust is filtered out.
Key Advantages
Enhanced Safety: Low operating temperatures and controlled oxygen levels drastically reduce the risk of spontaneous combustion and explosion.
Preserves Coal Quality: Prevents thermal degradation, cracks, and severe dust generation (slaking) while preserving volatile matter.
Energy Efficient: Uses low-grade industrial waste heat or steam, significantly lowering operating costs .
Boosted Energy Density: Rapidly increases the net calorific value for better transport and boiler efficiency.
Lower Carbon Footprint: Reduces transport emissions per energy unit and optimizes downstream combustion efficiency.
Applications
Coal Upgrading Plants: Upgrading lower-rank sub-bituminous coal prior to export or bulk transportation.
Thermal Power Plants: Pre-drying boiler feed fuel using existing plant waste heat/steam loops.
Coal Briquetting & Pelletizing: Preparing uniform, low-moisture coal feed for clean fuel briquette production.
4.Technical Specifications
Product Specs (m) |
Capacity(T/H) |
Main Motor Power |
Main Motor Mode1 |
Main Gearbox Model |
Ratio |
Weight (T) |
1.2x10m |
2.5 |
7.5 |
Y160M-R3 |
ZL50-16-1 |
13.5 |
|
1.5x12m |
3.3-4.9 |
10 |
Y160L-6B3 |
JZQ500-111-2F |
- |
18.9 |
1.5x15m |
4-6 |
18.5 |
Y200L-6 |
JZQ500-111-2F |
21 |
|
1.8x12m |
4-6 |
11 |
Y200L-6 |
ZQ50-1611-2 |
16.46 |
22.33 |
2.2x12m |
7-12 |
18.5 |
Y160L-6 |
JZQ650-111 |
31.5 |
37.6 |
2.2x14m |
7-12 |
18.5 |
Y160L-6 |
JZQ750-111 |
31.5 |
40 |
2.2x16m |
12 |
30 |
Y225M-6 |
JZQ750-11 |
31.5 |
45 |
2.4x14m |
12 |
30 |
Y250M-6 |
JZQ750-111 |
31.5 |
51 |
2.4x18m |
10-13 |
37 |
Y250M-6 |
ZL85-13-1 |
27.16 |
54 |
2.4x20m |
10-14 |
37 |
Y250M-6 |
ZL85-13-1 |
27.16 |
54.14 |
3x20m |
25 |
55 |
Y250M-4 |
ZL100-16-1 |
41.52 |
78 |
3x25m |
32-36 |
75 |
YR280M-4 |
ZL100-16-1 |
41.52 |
104.9 |
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