Tailored Solution Limestone Rotary Dryer Low Investment Easy
Maintenance
Introduction of Rotary Dryer:
Rotary dryer is mainly used for the drying various materials and
aslo can be used for drying compound fertilizer.The material inside
the rotary dryer has heat exchange with the high temperature flue
gas through shell rotating and material lifting by lifter.
Application of Rotary Dryer:
The drying line includes 4 major systems: feeding system, drying
system, dust removal system and finished product system.
Raw coal with a moisture content of 15% is sent to the receiving
hopper via a loader, and a rod valve is provided below the
receiving hopper, and a corresponding number of rods are pumped
according to the material consumption, and then the raw coal is
evenly transported to the belt conveyor through the electromagnetic
vibrating feeder and then raw coal is sent to the end of the dryer
by belt conveyor. The feed end of the dryer is equipped with a
double-layer air lock valve to prevent outside cold air from
entering the drying system, and a heat-resistant steel discharge
pipe is provided below the double-layer air lock valve to prevent
the hot air from the hot air furnace outlet from burning out the
discharge pipe. To ensure smooth transportation of raw coal.
The heat source of the dryer is a natural gas hot blast stove. It
adopts the international advanced Riyaro burner + hot blast stove
structure. The servo motor automatically adjusts the natural gas
and air flow to meet the precise control of the process
temperature. The hot air flows from the tail of the dryer to the
head under the suction of the induced draft fan, and continuously
exchanges heat with the raw coal.
Dust will be generated during the drying process, and the dust will
enter the dust removal system along with the hot air. The secondary
dust removal system adopts cyclone dust removal + bag dust removal.
The first dust removal is cyclone dust removal to remove larger
dust particles, and the second dust removal is bag type dust
removal to remove finer dust particles. The purified gas contains
dust concentration controlled within 30mg/Nm3 to meet national
environmental protection requirements.
After drying, the moisture content of the raw coal is reduced to
4%, and then slides to the bucket elevator through the double-layer
air lock valve. The bucket elevator lifts the dried raw coal into
the finished product storage bin.
Specifications:
| specification | cylinder | Capacity(t/h) | motor | Power(kw) | reducer |
| D(mm) | L(mm) | Slope(°) | Speed(rpm) | model |
| 1212 | 1200 | 12000 | 1.8 | 5 | 2-5 | Y160LM-6 | 11 | ZQ500 |
| 1515 | 1500 | 15000 | 1.8 | 4.28 | 4-5 | Y160L-6 | 18.5 | ZQ650 |
| 1818 | 1800 | 18000 | 1.8 | 5 | 6-8 | Y200LI-6 | 22 | ZA650 |
| 2020 | 2000 | 20000 | 2.0 | 3.28 | 7-10 | Y200L2-6 | 30 | ZQ650 |
| 2222 | 2200 | 22000 | 1.8 | 2.8 | 9-14 | Y250M-6 | 45 | ZQ650 |
| 2424 | 2400 | 24000 | 2.5 | 2.82 | 14-16 | Y280S-6 | 55 | ZQ750 |
| 2626 | 2600 | 26000 | 2.5 | 2.58 | 16-18 | Y280M-6 | 75 | ZQ850 |
| 2828 | 2800 | 28000 | 2.5 | 2.55 | 20-22 | Y315S-6 | 90 | ZL115 |
| 3030 | 3000 | 30000 | 2.5 | 2.69 | 22-24 | Y315L1-6 | 132 | ZL130 |
| 3232 | 3200 | 32000 | 2.5 | 2.6 | 24-26 | Y315M-4 | 200 | ZSY450 |
| 3434 | 3400 | 34000 | 2.5 | 2.51 | 26-28 | Y315L2-4 | 315 | ZL130 |
| 3634 | 3600 | 36000 | 2.5 | 2.51 | 30-40 | Y315L2-4 | 315 | ZL130 |
| 4040 | 4000 | 40000 | 2.5 | 2.09 | 40-45 | YKK4003-4 | 400 | ZSY630 |
| 4242 | 4200 | 42000 | 2.5 | 2.09 | 45-46 | YKK4005-4 | 400 | ZSY630 |
