Grinding mill

Based on year’s research on the industrial grinder and introduction of the world-class industrial powder-making technology, Shibang Grinding Equipment Co., Ltd. have developed this kind of world advanced industrial grinder by meticulous design, experience, and improvement from its own technology experts and relative project staffs. MTM Medium Speed Trapezium Mill adopts many national latest grinding proprietary technologys, such as ladder-shaped working surface, flexible connection, roll linked pressure boost, etc. It has totally over many defects of traditional mill, like application, capacity, fineness, energy consumption, service life, etc and it is the ideal substitute of traditional mill, such as Raymond mill, high pressure suspension mill, ball mill, etc.And it has created enormous economic and social benefits. Nowadays, our products have been widely used in metallurgy industry, electric power industrial, chemical, building, steel industry, coal industry, etc. And now MTM Medium Speed Trapezium Mill have found its extensive application in the field of Building materials, chemicals, fertilizer, metallurgy, mining, nonmetal, abrasive, refractory, ceramics, steel, thermal power, bricks, coal with the Mohs hardness lower than 9 degree. And it can be used to crush various non-flammable and explosive mineral materials with the final products fineness at the range of 30-400monyh such as Cement (raw clinker), quartz, feldspar, calcite, gypsum, limestone, dolomite, graphite, fluorite, wollastonite, rock phosphate, coal, coal gangue, slag, zircon sand, talc, granite, K-feldspar stone, marble, barite, ceramics, glass, and other over thousand of materials’s grinding.

Technical 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.
• 6. Unique design of the air duct with the leaning inward ensures that the materials which have entered the wind scoop shell can smoothly fall in the grinding mill along the slope.

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

Note: This specification is just for reference, any changes are subject to the MTM Series Trapezium Mill products.