►Rotary Kiln
Introduction:
Rotary kiln refers to rotating calcination kiln, belongs to
construction material equipment. According to the different
materials, the kiln can be divided into cement kiln, metallurgy
chemical kiln and lime kiln. The cement kiln is mainly used for the
calcinations of cement clinker, and it has two types of dry and wet
methods. And the metallurgy chemical kiln is mainly applied in
metallurgy industries, like, magnetizing roast of the poor iron ore
in ironworks, oxidizing roast of the chromium and nickel ore, roast
of the high aluminum bauxite in refractory material industry, roast
of clinker and aluminum hydroxide in aluminum manufacturer, and
roast of the chromium ore and chromium powder in chemical industry.
The lime kiln is mainly used for roasting the active lime and light
roasting of the dolomite in ironworks and ferroalloy works.
■ Technical Data
►
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The cement rotary
kiln is adapted to the need of the industry developed
a new type of cement rotary kiln calcining equipment, the
measurement principle of cement rotary kiln kiln method: laser
measurement, laser is a good monochromaticity, concentrated energy,
small beam divergence angle of light. cement rotary kiln laser
technology, has been applied in the industrial sector. Use of
cement rotary kiln the laser beam can be easily carried out a
variety of work. Laser measurement of cement rotary kiln and the
theodolite method compared with cement rotary kiln, clear and
intuitive method is simple, accurate, reliable, due to the
reduction of a series of measurements and conversion process, laser
measurement with high accuracy and more convenient for cement
rotary kiln.
Determination method for cement
rotary kiln, installation of a new cement rotary kiln and the
transformation of the old cement rotary kiln cement rotary kiln,
when no heat exchange device, using a cement rotary kiln inner
fixing method is more convenient. Specific steps: Determination of
cement rotary kiln sites located in a frame; the determination of
position of the center of cement rotary kiln cement rotary kiln
method; determine the baseline; find is comparing laser beam into a
turning plate coordinate paper facula center circle and the origin
of the relative position is known, the size of the deviation. Then
by adjusting the bolt, nail wire link or adjusting the supporting
wheel, when the spot with the cement rotary kiln cylinder center
coincide. cement rotary kiln tracking method can ensure the
straightness of cement rotary kiln, cement rotary kiln
determination outside except for aligning the axes of the cement
rotary kiln cylinder, also can understand idler wheel axis. Also
need to measure each roller, roller diameter and the profile of
roller and pad clearance, and after accounting.
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Cement Rotary
Kiln Temperature Control
Strategy
The current cement
rotary kiln calcining is pellets sintering process is
the most important stage, so the cement rotary kiln temperature
control becomes the key factor. The cement rotary kiln attentive in
large time delay, nonlinear, time-varying and other technological
features, using the cement rotary kiln temperature adaptive fuzzy
PID-Smith compound control strategy, and according to the cement
rotary kiln heat balance analysis results and Smith predictor
features for relay identification method, identification of
different cement rotary kiln temperature temperature control model,
in order to discrete way of approximating actual system model of
continuous change, eventually reducing cement rotary kiln model
mismatch caused by the prediction compensation error.
Main Technical
Parameters of Rotary Kiln:
Spec.(m) |
Φ2.8/2.5×*4 |
Φ3.2×*0 |
Φ3.5×*4 |
Φ4×*0 |
Φ4.3×*4 |
Φ4.8×*4 |
Φ5.6×*7 |
Φ6.0×*5 |
Capacity(t/d) |
**0 |
***0 |
********0 |
***0 |
***0 |
***0 |
***0 |
****0 |
Slope of the
kiln shell (%) |
3.5 |
3.5 |
4 |
4 |
4 |
4 |
4 |
4 |
Support Qty |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
Type of thrust roller |
Mechanical |
Mechanical |
Mechanical |
Hydraulic |
Hydraulic |
Hydraulic |
Hydraulic |
Hydraulic |
Rotating speed of kiln |
Main driving
(r/min) |
0.****2.*2 |
0.***3.*7 |
0.***3.9 |
0.***4.*7 |
0.**4.0 |
0.***4 |
Max4.*3 |
Max5 |
Auxiliary
driving
(r/min) |
4.*5 |
6.5 |
7.*6 |
8.2 |
7.*3 |
8.*2 |
8.7 |
9.2 |
Main driving |
Electrical motor |
Model |
ZSN*******1 |
ZSN********1B |
ZSN********2 |
ZSN********2 |
ZSN*******2 |
ZSN********2 |
ZSN*******2 |
ZSN********2 |
Rated
power (kw) |
*5 |
**0 |
**0 |
**5 |
**0 |
**0 |
**0 |
**0×2 |
Speed
regulation
range
(r/min) |
~***0 |
***0 |
***0 |
***0 |
*******0 |
***0 |
**0~***0 |
**0~***0 |
Rated
power (v) |
**0 |
**0 |
**0 |
**0 |
**0 |
**0 |
**0 |
**0 |
Reducer |
Model |
ZS*****-I |
ZSY*******-V |
NZS*****8VIBL |
YNS******2.4VBR |
YNS******1.5VIBL |
JH**0C-SW*****0 |
JH**0C-SW*****5 |
JH**0C-SW*****8 |
Total ratio |
****3 |
*0 |
*8 |
*2.4 |
*1.5 |
Auxiliary driving |
Electrical motor |
Type |
Y**2M*4 |
Y**0M*4B |
Y**0L**6 |
Y**0L*4 |
Y**0L*4 |
Y**5M*4 lp*4 |
Y**0M*4 |
Y**5M**4 |
|