MTM series trapezium mill
Introduction
This machine is a new kind of grinding mills and developed by adoption of many latest proprietary technology .It features new designing, reasonable structure, smaller size, lower energy consumption, longer service life, and less consumption of wearing parts, higher performance cost ratio, etc. All its technical performance have reached the international leading level.Nowadays, our products have been widely used in metallurgy industry, electric power industrial, chemical, building, steel industry, coal industry, etc.
Structure Features
1. The ladder-shaped rollers and rings improve crushing efficiency greatly. The rollers and ring are designed in the main machine of an inverted trapezium controlling the material’s slip velocity between rollers and rings,which can extend the grinding time, and enhance the crushing effect.
2. The press springs with balancing and pressurized function and the forming resilient connection with steady and vibration reducing function are invented into our machines. The symmetrical roller assembly is connected by horizontally-placed spring rod. To keep balance, the radial force will pass to another roller assembly, which is on the plane of symmetry through spring rod when the large materials impact one roller assembly. Under this condition, the whole device’s bearing is improved by one half compared with the other mills; and the forming resilient connection can reduce the vibration and noise, and it can also avoid the resonance.
3. The powder classifier adopts high density impeller, which can increase precision of powder and capacity. It has proved that: under the fixed spindle speed, to enhance the density of impeller is to enhance the fineness of final products. In other words, when the fineness of final product is fixed, the spindle speed of high density impeller is lower than the low density one. Thus under the same power, our machine can reduce resistance of air’s flow, the capacity can be improved by more than 50% over the traditional one.
4. There is a high-efficiency and energy-saving blower installed on our machine. The efficiency of prismatic blade equipped on the traditional machine is only 62%, but the efficiency of the energy saving blower is 85% , whose impeller and blade are both stamping.
5. There is a convenient impeller adjusting device. The clearance between housing and ending of powder classifier’s blade also effects the fineness. Our mill is convenient to adjust the fineness.
Working Principle
The main unit runs with the a central shaft driven by a transmission device .The top of the shaft is connected with a quincunx stand,on which a grinding roller is installed to form a awing support ,the grinding roller not only rotates around its own axis ,but also rotates around the grinding ring and rotates itself due to the friction. There is spade system under the quincunx stand ,which is at the bottom end of the grinding roller .During rotation of the spade and the rollers ,materials will be fed into the space between rollers and ring to form a material layer.The materials will be grinded due to centrifugal force.
Technical Data:
Item |
MTM100 |
MTM130 |
MTM160 |
Number of roller |
4 |
5 |
6 |
Major diameter of roller ×Height（mm） |
Φ320×200 |
Φ410×240 |
Φ440×270 |
Internal diameter of roller × Height（mm） |
Φ980×200 |
Φ1280×240 |
Φ1600×270 |
Main engine spindle speed（mm） |
130 |
103 |
82 |
Maximum feeding grain size （mm） |
<25 |
<30 |
<35 |
Grain size of finished product (mm) |
1.6 －0.038 |
1.6 －0.038 |
1.6 －0.038 |
Output (t/h) |
3 － 8.8 |
6 －13 |
13 －22 |
Overall dimension (mm) |
9910×5365×8310 |
7910×7000×9645 |
12550×5700×8355 |
Weight(t) |
16 |
26.1 |
35 |
Name |
Item |
Unit |
Specification and technical data |
|||
MTM100 |
MTM130 |
MTM160 |
||||
Motor of main engine |
Model |
- |
Y225M-4 |
Y280S-4 |
Y135M1-4 |
|
Power |
kw |
45 |
90 |
132 |
||
Spindle speed |
r/min |
1480 |
1480 |
1480 |
||
Motor of adjustable varying speed motor |
Model |
- |
GZT2-42-4 |
YCT200-4B |
JZT2-52-4 |
|
Power |
kw |
5.5 |
7.5 |
11 |
||
Spindle speed |
r/min |
125~1250 |
125~1250 |
125~1250 |
||
Motor of elevator |
Model |
- |
Y1000L-4 |
Y1000L2-4 |
Y112M-4 |
|
Power |
kw |
3 |
3 |
4 |
||
Spindle speed |
r/min |
1420 |
1420 |
1420 |
||
Motor of centrifugal induced draught fan |
Model |
- |
Y225S-4 |
Y250M-4 |
Y112M-4 |
|
Power |
kw |
37 |
75 |
132 |
||
Spindle speed |
r/min |
1480 |
1480 |
1480 |
||
Motor of jaw crusher |
Model |
PE |
200x350 |
250X400 |
250x400 |
257x750 |
|
- |
Y160M-6 |
Y180L-6 |
Y180L-6 |
Y200M-6 |
|
Power |
kw |
7.5 |
15 |
15 |
22 |
|
Spindle speed |
r/min |
970 |
970 |
970 |
||
Magnetic vibration-actuated feeder |
Model |
- |
GZ1F |
GZ2F |
GZ3F |
|
Spindle speed |
watt |
60 |
150 |
200 |
||
If there is change of the above specification, it subjects to the newest products' specifications.