Description
Cement Rotary
Kiln
- Power(W): *****0x2
KW
- Production Capacity: ********0 tpd
- Dimension(L*W*H): 2.5x***6.0x*5 m Cement Rotary
Kiln
- Application Industry: Cement
Plant, Steel Mill, Chemical Plant &
Incinerator
- Output: **0~****0 t/d Cement Rotary
Kiln
- Weight: *******9
t
- Certification: ISO/CE
- Model: 2.5x***6.0x*5 m Cement Rotary
Kiln
- 2.5x*0: **0
tpd
- 3.0x*5: **0
tpd
- 6.0x*5: ****0
tpd
- Warranty: *2
month
- After-sales Service
Provided: Engineers
available to service machinery overseas
Packaging & Delivery
| Packaging Details: |
Simple packaging |
| Delivery Detail: |
****0 work day |
(WE CAN ALSO SUPPLY ROTARY KILN FOR LIME,
TITANIUM DIOXIDE, LATERITIC NICKEL, MAGNESIUM OXIDE, BAUXITE,
OXIDIZING PELLET, KOALIN ETC...GRINDING MILL, VERTICAL MIL
ETC...)
Cement rotary kiln technical
characteristics:
♦ Kiln body is made of high quality composed of carbon
steel or alloy steel plate and automatic welding;
♦ Tyre,Support Roller,Open gear adopts alloy cast steel;
♦ Sliding bearing with large gap not scraping tile
bearing;
♦ Transmission device adopts hard tooth surface reducer,
flexible diaphragm coupling, dc motor;
♦ Adopts hydraulic gear wheel;
♦ Preheater scales were used respectively to veiw of kiln
head, and cylinder pressure tight seal;
♦ A slow drive device.
Cement Rotary Kiln
Processes Wet and
Dry Cement Rotary Kiln
With the arrival of rotary
kilns, cement manufacturing processes became sharply defined
according to the form in which the raw materials are fed to the
kiln. Raw materials were either ground with addition of water, to
form a slurry containing typically ****5% water, or they were
ground dry, to form a powder or "raw meal".
- In the Wet
Process, the kiln system is fed with liquid slurry, the
water then being evaporated in the kiln.
- In the Semi-Wet
Process, raw material is prepared as a slurry, but a
substantial proportion (****0%) of the water is mechanically
removed, usually by filtration, and the resulting "filter cake" is
fed to the kiln system.
- In the Dry
Process, the kiln system is fed with dry raw meal
powder.
- In the Semi-Dry
Process, a limited amount of water (****5%) is added to
dry raw meal so that it can be nodulised, and the damp nodules are
fed to the kiln system
Wet process cement
rotary kilns Wet
and Dry Cement Rotary Kiln
The original rotary cement
kilns were called \'wet process\' kilns. In their basic form they
were relatively simple compared with modern developments. The raw
meal was supplied at ambient temperature in the form of a
slurry.
A wet process kiln may be up
to **0m long and 6m in diameter. It has to be long because a lot of
water has to be evaporated and the process of heat transfer is not
very efficient.
The slurry may contain about
*0% water. This takes a lot of energy to evaporate and various
developments of the wet process were aimed at reducing the water
content of the raw meal. An example of this is the \'filter press\'
(imagine a musical accordion ****0 metres long and several metres
across) - such adaptions were described as \'semi-wet\'
processes.
The wet process has survived
for over a century because many raw materials are suited to
blending as a slurry. Also, for many years, it was technically
difficult to get dry powders to blend adequately.
Dry process cement
rotary kilns Wet
and Dry Cement Rotary
Kiln
In a modern works, the
blended raw material enters the kiln via the pre-heater tower.
Here, hot gases from the kiln, and probably the cooled clinker at
the far end of the kiln, are used to heat the raw meal. As a
result, the raw meal is already hot before it enters the
kiln.
The dry process is much more
thermally efficient than the wet process.
