Coal washing plants are mainly used to remove impurities from raw coal or to classify high-quality coal and low-quality coal. Before clean coal used, it must first be crushed, graded, washed, dewatered and fines recovered to meet the standards for coking. Coal washing utilizes different physical and physical-chemical properties to remove impurities mixed in raw coal by mechanical means in the coal washing plants and divides it into products with different quality and specifications to meet the needs of different users.
Coal slime is industrial waste generated during coal washing. Due to coal slurry with high moisture content, high viscosity, high water, and low calorific value such many other adverse conditions, it is difficult to realize industrial use, based on the coal slime industry market and the characteristics of coal slurry, through many times technical research and practice,Jiutian company developed a new generation of coal slime drying system meticulously, drying product moisture is less than 15%, the calorific value of coal can achieve 2800-4200 kcal/kg,it is a good fuel of coal boiler. This set of equipment technology is mature, stable running, convenient operation and maintenance.
Materials:Widely used for drying coal, lignite, carbon coal, coal, slime, coking coal, gas coal, etc.
Application:Drying coal slime to enable resource recovery and clean utilization.
Coal slime with around 30% moisture and high viscosity is dried through six functional zones inside the rotary drum. After entering the feeding zone, it contacts high-temperature hot air for rapid surface evaporation. In the crushing and cleaning zone, lifting and beating devices break sticky lumps into 20–40 mm granules, preventing wall adhesion and improving heat exchange.
In the main drying and secondary crushing zones, the material is continuously lifted and dispersed into a uniform curtain, further reduced to 10–20 mm (as required) while moisture decreases significantly. In the strengthening drying zone, dense lifting plates ensure final moisture meets discharge standards. The material then smoothly exits the drum with a final moisture content of about 12–15%.
This staged design ensures efficient drying, anti-sticking performance, and stable operation.
| Model | Capacity(t/h) | Evaporation Capacity(t/h) | Raw Material Moisture(%) | Outlet Moisture(%) | Drying Temperature(℃) | Power(kw) | Total Weight(kg) | Area |
|---|---|---|---|---|---|---|---|---|
| JTMG1916 | 13.5 | 3.0 | 30±3% |
12-15% (adjustable) |
850±100℃ | 138 | 67000 | 8m*24m |
| JTMG2218 | 19.8 | 4.4 | 170 | 85000 | 10m*24m | |||
| JTMG2518 | 25.6 | 5.7 | 240 | 92000 | 10m*30m | |||
| JTMG2522 | 31.5 | 7.0 | 320 | 110000 | 10m*36m | |||
| JTMG2823 | 41.4 | 9.2 | 450 | 150000 | 10m*36m | |||
| JTMG3430 | 80.0 | 17.7 | 680 | 265000 | 10m*48m |
Utilizes co-current drying technology where hot air and materials enter together, achieving high evaporation intensity and over 80% thermal efficiency with low outlet temperature.
Features strong overload resistance with large processing capacity and stable operation, significantly reducing fuel consumption and drying costs per unit.
Adjustable parameters create stable full-cross-section material curtains for thorough heat-mass exchange, ensuring consistent drying quality.
Zero-horizontal-thrust design with self-aligning roller devices minimizes mechanical wear, prevents material sticking, and ensures smooth, energy-efficient operation.
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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