MTW European Trapezium Grinding Mill

The latest mill—MTW series european trapezium mill is the one embracing advanced international techonology, and many proprietary intellectural property rights, the mill adopts many lastes patent technologies, such as wholesome transmission of cone gears, inner thin oil lubrication system, arch wind flow and so on.
MTW European Trapezium Grinding Mill

The MTW series european trapezium mill is mainly used to process power of metallurgy, chemicals, ores and other ore products, which is able to mill quartz, feldspar, calcite, talcum, barite, fluorite, rare earth, marble, ceramics, bauxite, manganese, iron, copper, rock phosphate, iron oxide red, zircon sand, slag, slag , cement clinker, activated carbon, dolomite, granite, garnet, iron oxide yellow, fertilizer, compound fertilizer, fly ash, bituminous coal, coke, lignite, Ling U.S. sand, chromium oxide green, gold, red mud, clay, Kaolin, coke, coal gangue, porcelain clay, kyanite, fluorspar, bentonite, medical stone rhyolite, diabase, leaf wax rock, shale, purple rock, Diego rock, basalt, gypsum, graphite, silicon carbide , insulation materials, whose mohs hardness is under 9th grade, and various non-flammable non-explosive ore materials with moistrure below 6%.

Features of MTW grinding mill

1.The trapezium shaped roller and ring highly improved the crushing efficiency.
2.Easy to be installed and more efficient.
3.The pressure springs work the function of balance and pressurize. Elastic connection can reduce vibration and keep balance when the equipment works.
4.The powder classifier adopts high density impeller which can increase powder precision and capacity.
5.MTW series grinding mill adopts a cambered air channel, the tangential air goes into air channel easily because there is small resistance. And the inner outlet is very good for the grinded material to spread around and avoid grinding material jammed.
6.Cambered shovel with renewable edge.
7.Separated cyclone: There is a separated structure between inner piping and mixed air and powder. The efficiency and precision of classifying is promoted highly.
8.Perfect outward appearance: Both of the inner parts and outer part of the MTW series mill adopt advanced structure and beautiful arc structure design. This makes the mill advanced and beautiful.
9.MTW series mill make the inner surface of checking door stay with the inner surface of snail shell on the same plane, so the eddy air flow is avoided efficiently.

Application of MTM Trapezium Grinding Mill

MTM Medium Speed Trapezium Grinding Mill is mainly applied to the powder processing of mineral products in industries of metallurgy, construction, chemistry, and mining, etc. The MTM Medium Speed Trapezium Grinding Mill can produce powder from non-flammable and non-explosive mineral materials with Mohs hardness below 9.3 and humidity below 6%, such as barite, limestone, quartz, calcite, granite, porcelain clay, basalt, gypsum etc. The final sizeof the powder is between30—400mesh. Fully considered the needs of desulfurization, MTM Medium Speed Trapezium Grinding Mill could perfectly work with desulfurization equipments to increase the efficiency of desulfurization. So it is the best choice of desulfurization.

Application:	metallurgy, construction, chemical industry, mining, etc
Capacity	Up to 128TPH(ore mill), up to 50TPH (coal mill)
Max feeding size:	<55 mm
Feed Material:	Limestone, quartz, feldspar, calcite, talcum, barite, fluorite, thulium，marble, porcelain, bauxite, manganese, iron ore, copper ore, phosphorite, ferric oxide(red), zirconium, slag, active carbon, dolomite, granite, ferric oxide(yellow), bean cake, fertilizer, compound fertilizer, coal ash, soft coal, lignite, magnesite, chrome oxide, gold mine, red mud, clay, kaolin, coke, china clay, kyanite, fluorite, rhyolite, greenstone, shale, basalt, gypsum, graphite, carborundum, heat-retentive materials which are non-flammable, non-explosive, with Moh’s hardness below 9 and moisture below 6%.
Apply for production plant:	Grinding production plant
Durability:	Depends on the hardness and humidity of feed material and other factors.
Certification:	ISO 9001:2000, National Patent Certification
Guarantee:	One year (excluding easy-worn parts)

Working principle of MTW Grinding Mill

Working principle of the MTW series european trapezium mill is of vertical structure, small working area, sets type, while the main transmission device is ow sealed gear case transmitting stably. Key parts of the mill are of high-quality steel, which make the whole machine abrasion resistent and reliable. The electric system is constrolled concentrade, which is advanced and reasonable in type selection, high in automation, small in volume and weight of vibration feeders, easy to adjust and save electricity. Working process of the whole machine is as follows:
Big bulk materials after being crushed to required fineness by jaw crushers will be feed to hoppers by the lifting machine, and feed by the vibration feeders evenly, with a fixed amount, and continuously to the main mill for grinding, powder will raise with fan airflow, graded by powder selection machine, powder meeting the required fineness will enter into the cyclone dust collector with airflow for separating and collection, finally, they will be discharged from the powder valve and that’s the final powder. Airflow is absorbed to the centrifugal fan through the backwind tube on top of the big cyclone dust collector, the whole air system of the machine is closed and circulatory, and is of circulation flow under conditions of positive and negative pressure.
Main engine of the MTW series european trapezium mill is as flows: it drives the central draft to rotate through the whole transmission device, head of the draft is connected with the roller hanger, there is a roller device on the frame and can form a swing supporting point. Roller device will not only rotate around the central draft, and will rotate around the mill ring, roller itself will rotate under abrasion effect. There is a blade installed under the roller frame, which is able to feed materials into the mill ring of the roller while blade and rollers are rotating and form a litter layer, which will generate outward centrifugal force while rollers are rotating to grind the materials and achieve the powder making purpose.

Technical Data of MTW Grinding Mill

Mm to inch conversion: 25.4millimeters=1 inch
Mm to mesh conversion: 25.4mm=1in.
The humidity and hardness of raw materail will affect the fineness and capacity.

Model Specification Name	MTW110	MTW138	MTW175
Quantity of roller (PCS)	4	4	6
Inner diameter of ring (mm)	Ф1100	Ф1380	Ф1750
Rotary speed of main frame(r/min)	120	96	75
Max. Feeding size(mm)	< 30	< 35	< 40
Output size (mm)	1.6～0.045 The fineness is 0.038	1.6～0.045 The fineness is 0.038	1.6～0.045 The fineness is 0.038
capacity (t/h)	3.5～10	6.5～15	11～25
Overall dimension (mm)	8910×6950×9010	9860×8340×10227	13500×11500×9500
Total weight (t)	18	28.5	46

Remarks: Capacity is based on grinding limestone, 80% passing-through. If the technical data and overall dimension is changed, it is subjected to the operation manual which is together with delivered goods.