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MQG Energy-Saving Grate Ball Mill
Model:
MQG3660
EffectiveVolume:
55m³
Maximum Ball Loading Capacity:
120000kg
Throughput:
100-170t/h
COLLECT
Chenzhou Hengda Mineral Processing Machinery Co., Ltd.
Hunan · Chenzhou
Main Products:Mineral processing equipment
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Details Parameters
Details Introduction

Grinding mills can be classified into ball mills, rod mills, and autogenous mills based on the grinding media used. They can operate in either wet or dry grinding modes.  

Ball mills can be categorized by their discharge methods into grate-type and overflow-type mills, by their drive methods into peripheral-drive and central-drive mills, and by their main bearing types into plain-bearing and rolling-bearing (energy-saving) mills. They are primarily used for raw material grinding, with the finely ground material supplied to subsequent processes, such as in mineral processing plants, where it is fed to flotation machines or magnetic separators for mineral separation.  

MQG Energy-Saving Grate Ball Mill

The grate-type ball mill is a type of ball mill that relies on a discharge grate for forced ore discharge. In multi-stage grinding, it is typically used for the primary grinding stage.  

Applications: 

This machine is suitable for raw material grinding in industries such as mineral processing, metallurgy, chemicals, cement, and building materials, achieving a grinding fineness of up to 0.074 mm.  

Structural Features:  

1. The ball mill mainly consists of a transmission unit, slow-drive unit, main bearing unit, rotating unit (feeding unit, cylinder unit, discharge unit), lubrication system, and electrical control system.  

2. Small ball mills (diameter < 2.1m):** Feature an integrated frame design for easy transportation and installation.  

3. Large ball mills: 

  • Equipped with a jacking device for convenient maintenance. 
  • Include a slow-drive system for easier startup and maintenance.  
  • Utilize automatic spray lubrication for the gears, ensuring reliable lubrication, extending gear service life, and reducing lubricant consumption.  
  • Incorporate an air clutch for soft starting, minimizing the impact on the power grid during startup.  

4. Energy-saving ball mills: Use double-row spherical roller bearings for the main bearings. When combined with permanent magnet synchronous motors and frequency control, they can save up to 30% energy compared to traditional ball mills.  

Working Principle: 

The rotating components of the ball mill, including the cylinder, are supported by main bearings at both ends. The motor drives the cylinder to rotate via the transmission mechanism. The material enters the cylinder through the feeding unit and is crushed by the impact and self-grinding action of the grinding media and the ore itself. As new material is continuously fed in, the ground material moves toward the discharge end and exits through the discharge port.  

Technical Parameters:

Model specification Cylinder inner diameter(mm) Cylinder length(mm) Effective volume(m³) Rotational speed of the cylinder(r/min) Maximum ball charge(kg) Feed size(mm) Processing capacity(t/h) Motor power(kw) Weight(kg) Overall dimensions (L×W×H) mm
MQG0918 900 1800 0.9 41.4 1900 <20 0.5-2.2 18.5 5600 5080×2330×2020
MQG0924 900 2400 1.2 41.4 2500 <20 0.7-2.9 30 6500 5750×2330×2020
MQG1224 1200 2400 2.4 36.7 4800 <25 1.5-7 45 13400 6460×2860×2540
MQG1230 1200 3000 3 36.7 6000 <25 1.5-8 55 15500 7060×2860×2540
MQG1530 1500 3000 4.5 31 8800 <25 3-8 90 18000 7455×3260×2770
MQG1535 1500 3500 5.3 31 10200 <25 3.5-9 110 19500 7955×3260×2770
MQG1540 1500 4000 6 31 11700 <25 4-10 132 21000 8525×3310×2770
MQG1830 1830 3000 6.7 28.8 12000 <25 5-13 155 26500 8070×3770×3070
MQG1835 1830 3500 7.8 28.8 14000 <25 5.8-15 185 28000 8570×3770×3070
MQG2130 2100 3000 9 23.6 19000 <25 7-20 180 46000 9350×4920×4285
MQG2135 2100 3500 10.5 23.6 22000 <25 7-23 210 50000 9880×4920×4285
MQG2435 2400 3500 14 23.6 25000 <25 9-33 320 62000 9950×5220×4285
MQG2445 2400 4500 18 23.6 32000 <25 10-41 380 70000 10950×5200×4285
MQG2736 2700 3600 18.5 21.7 36000 <25 12-40 400 89000 11200×5815×4675
MQG2745 2700 4500 23 21.7 45000 <25 12-50 500 105000 12130×5815×4675
MQG3236 3200 3600 26 18.5 50000 <25 90-70 630 136000 12600×7200×5200
MQG3245 3200 4500 32.5 18.5 63000 <25 90-110 800 150000 13560×7200×5200
MQG3645 3600 4500 41 18 85000 <25 100-130 1250 170000 14250×7300×5700
MQG3660 3600 6000 55 18 120000 <25 100-170 1600 198000 15750×7300×5700

Note: In addition to the model specifications listed above, custom manufacturing is available to meet specific user requirements.

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