Lignite is a kind of low-grade coal, which is formed by peat diagenetic formation of humic coal, it’s the lowest degree of coalification, always present brown, dark brown, dim or asphalt luster color, no cohesive. Its physical and chemical properties are between peat and bituminous coal. High water content, high volatile, low density, containing humic acid, oxygen content up to 15 ~ 30%, easy to fragmentation, spontaneous combustion in the air. According to China's coal classification standards, they are divided into two categories: light transmittance PM 30 ~ 50% of the old lignite and PM less than or equal to 30% of the young lignite. Chinese and Indonesian lignite are mostly old lignite.
Jiutian engaged in coal, coal slurry drying industry for many years, through the physical and chemical properties of coal and lignite drying temperature, pressure, air speed and oxygen quantity such related parameter research, Jiutian establish lignite dryer test base in Inner Mongolia, after many experiments demonstrate technology research, successfully developed for lignite drying and lignite upgrade equipment.Our company lignite dryer can reduce the moisture of lignite 25-60% to 15-30%, after processing the calorific value of coal can reach 30-80%, direct as a substitute for thermal coal, bituminous coal and anthracite used in power plants.The technical equipment through has been running in China's Inner Mongolia, yunnan, xinjiang and Indonesia,it is security, stability, energy conservation, environmental protection,which has a huge and potential market, suitable for various coal mining enterprises.
Materials:Widely used for drying coal, lignite, carbon coal, coal slime, coking coal, gas coal, etc.
Application:Improve the quality of lignite, increase its calorific value, and reduce transportation costs.
The lignite dryer adopts a rotary drum structure. Wet lignite is fed into the drum in a metered manner, and a uniform material curtain is formed under the rotation of the drum and the lifting action of the internal lifting plates. This material curtain comes into full contact with the high-temperature hot air, achieving efficient heat and mass transfer, allowing the moisture to evaporate rapidly and be discharged with the airflow. The entire machine adopts a low-temperature controllable drying process, ensuring stable and reliable operation, and significantly improving calorific value and utilization efficiency.
| Model | Capacity(T/D) | Material Moisture(%) | Final Moisture(%) | Total Power(kw) | Area(m²) |
|---|---|---|---|---|---|
| JTHG2220 | 500 | 30-60 | 17-30 | 156 | 8*40 |
| JTHG2523 | 700 | 258 | 8*45 | ||
| JTHG2826 | 1000 | 320 | 10*50 | ||
| JTHG3428 | 1500 | 480 | 12*50 | ||
| JTHG4030 | 2400 | 560 | 15*55 |
Achieves 80%-90% efficiency. The internal structure enhances heat conduction and eliminates material sticking, improving drying performance.
With unit heat consumption under 800 kcal/kg·H₂O, the exhaust temperature approaches dew point, maximizing heat utilization and reducing waste.
Operates safely below ignition point in controlled oxygen-deficient conditions, effectively adapting to both free and bound water in different materials.
Features a horizontal zero-thrust construction that minimizes mechanical wear and extends service life while lowering operating costs.
From solution design to equipment manufacturing and on-site installation and commissioning, Jiutian provide complete one-stop services. The equipment is exported to over 100 countries including UK, Russia, Malaysia, the Philippines, Italy, Israel, Indonesia, Malaysia, Ethiopia, Nigeria, Congo, South Africa, Pakistan, India, Egypt, etc. Looking forward to cooperating with you. The following is the project site of our client.
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