The Zenith MTM Medium Speed Trapezium Mill is a leading-world-level industrial mill. The Grinding Mill is designed by our own engineers and technical workers, basing on industrial mill research of many years and adopting world-leading-powder processing technology. Our machine adopts many advantages from numbers of mill all over the world, such as trapezium’s working surface, flexible connection, roll linked pressure boost, etc. It has overcome the traditional mill’s defect completely in application, capacity, fineness, energy consumption, service life, etc. And it is the ideal substitute of the traditional mill, such as Raymond mill, high pressure suspension mill, ball mill, etc. Nowadays, our products have been widely used in metallurgy industry, electric power industrial, chemical, building, steel industry, coal industry, etc. And it has brought large economic benefits to our customers and the society.

Application Of The Grinding Mill:
This Grinding mill is widely used in many industrial fields, such as building, chemical, chemical fertilizer, metallurgy, mining, nonmetal, abrasive, bearing materials, ceramic, steel, thermal power, bricks & tiles, coal industry, etc. It can grind these materials which are 9 or less on the Meshes scale, and moisture is below 6%., and they should be non-explosive and non-flammable mining materials. The final size can be adjusted from 30 to 400 meshes easily. There are thousands of materials our machine can grind. The typical materials are cement (raw meal and cement clinker), quartz, feldspar, calcite, gypsum, limestone, dolomite, graphite, fluorite, aedelforsite, phosphate ore, fused calcium-magnesium phosphate, car amide, electrolytic manganese metal, ferromanganese, coal, gangue, slag, zirconium, steatite, granite, orthoclase, marble, barites, ceramics, glass, etc.
Working Principle Of this Grinding Mill:
Main unit runs with the central shaft that is driven by a decelerator. The top of the shaft is connected with a quincunx stand, on which a grinding roller is installed to form a swing support. The grinding roller not only rotates around the central axle and grinding roller, but also rotates around its own axle due to the friction. There is pallet knife system at bottom of quincunx stand. The pallet knife system is under the grinding roller. With co-rotation of pallet knife and grinding roller, pallet knife will lift the materials into the space between roller and ring to form a material layer. The materials will grinded due to centrifugal force of roller.
The classifier drives the impellers on the tray to rotate through speed adjusting motor, so that powder can be separated. The standard particles will enter cyclone collector. After being separated from the air flow, powder will be collected. Substandard particles will be thrown to the outside wall, to be separated from the air flow. Heavy powder will fall into the grinding chamber to regrind due to self gravity.
Technical Advantage Of The Grinding Mill
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, which control the material’s slip velocity between rollers and rings. They 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. When the large materials impact one roller assembly, to keep balance, the radial force will pass to another roller assembly, which is on the plane of symmetry through spring rod. Under this condition, the whole device’s bearing is improved to be 40% on the other mills; and the forming resilient connection can reduce the vibration and noise, also it can avoid resonance.
3、The powder classifier adopts high density impeller, which can increase precision of powder and capacity. It has been proved that: under 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 more than 50% over the traditional one.
4、There is 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, whose impeller and blade are both stamping, is 85%.
5、There is convenient impeller adjusting device. The clearance between housing and ending of powder classifier’s blade also effects fineness. Our mill is convenient to adjust the fineness.
Construct
Technical Data Of The Grinding Mill:
| Ite | 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 |
| Maximum feeding grain size (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 | 110 | ||
| 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 | ||
Note: If there is any modification of the Grinding Mill Data, all Data are subject to the operating Instructions.