MTM series trapezium mill

mtm_medium_mill

mtm_medium_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.