►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
►
-
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.
-
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
|
|
