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Raw Material Mill


Raw material mill is mainly used in the grinding of the cement raw, which is also suitable to grind various ores and other grinded materials in the metallurgy, chemical, electricity and other industrial and mining enterprises.
Features:
    • Easy to install
    • Simple maintenance

1. Introduction to the Raw Material Mill

Raw material mill is mainly used in the grinding of the cement raw, which is also suitable to grind various ores and other grinded materials in the metallurgy, chemical, electricity and other industrial and mining enterprises. It refers to both dry production and wet production, which can also simultaneously grind and parch. And it can be applied to the open flow grinding and cycle circuit grinding composed of power concentrator as well. The transmission type of the raw material mill is rim drive, which is compact structure and small footprint and thus greatly saves the user investment. The raw material mill adopts large cover, namely the end closure and hollow shaft are overall casting. Because the large cover and discharging system use the unique streamlined design, which reduces the ventilation resistance, enhances the effective volume, easily discharges and then improves the productivity of the mill.

Raw Material Mill

The raw material mill is single-chamber structure; grinding lined plate is combination design. Aiming at the different stage, the raw material mill uses different liner structure, which greatly improves the grinding efficiency. The work pressure of the raw material mill is negative pressure, which effectively prevents the occurrence of the power leakage. The drying hot air is introduced from the high temperature exhausted waste of the kiln inlet. The raw material mill uses insulation measures, thus the drying capacity of the materials can reach 6% to 8%. The electric control reserve DCS interface of the raw material mill can meet the users' needs of centralized control.

2. Working Principle

Usually, the raw material mill uses rim drive, after the materials having continuously and uniformly sent to the internal raw material mill by the feeding machines, the electric motor drives the mill cylinder rotary motion through speed reducer. First of all, the materials spirally enter the first grinding chamber along the hollow shaft, the ball media and material in the mill are affected by the friction and centrifugal force generated by the cyclotron rotation of the cylinder, after having brought to a certain height by the centrifugal force, the materials will be thrown and spilled up and then hit and grinded by the steel ball. After the crushed finished products having discharged from the mill and sorted by the sorting equipment, thus the qualified materials are selected. The unqualified materials will return to the mill for hitting and grinding in the recycling grinding system.

3. Technical Parameter

Product specification
(m)
Milling form Transmission form Gear box Motor power
(kw)
Production capacity
(t/h)
Total weight
(t)
Model Speed reduction ratio
Φ1.5×5.7 Open flow Brim ZD40 3.55 130 4.5-6 25.8
Φ1.8×6.4 Open flow Brim ZD60 4.5 210 7.5-15 43
Φ2.2×6.5 Circle flow Brim ZD70 5 380 14-26 60
Φ2.4×7 Circle flow Brim ZD70 5 475 24-28 81
Φ2.4×10 Circle flow Brim ZD80-4-LL 6.44 570 32-36 118
Φ2.6×10 Circle flow Brim JDX710 6.3 800 45-50 130
Φ3×9 Open flow Brim JDX800 6.3 1000 55-60 158
Φ3.2×9 Circle flow Brim MBY900 7.1 1250 62-65 195
Φ3.5×10 Open flow Brim JDX900 5.84 1250 70-75 200
Φ3.8×7.5 Circle flow Brim JDX900 5.6 1600 80 233
Φ4.6×10+3.5 Circle flow Central shaft JQS3550 15.1 3550 190 415
Φ4.6×10.5+3.5 Circle flow Central shaft JQS3550 15.1 3550 210 476

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ABOUT US

Henan Hongxing Mining Machinery Co., Ltd is a joint-stock mining machinery manufacturing enterprise integrated in scientific research, production and marketing.