The ZYLM vertical mill is a state-of-the-art powder grinding equipment developed by combining advanced technology from both domestic and international sources with years of production experience from various grinding machines. It boasts the advantages of the Laval mill's light-load start-up and rollable maintenance, as well as the long service life of the MPS roller sleeve. It features a roller limit device to prevent collision between the roller and the grinding disc. It has been rapidly promoted and applied in the preparation of coal powder and ultra-fine non-metallic mineral powders. It also shows great potential in the grinding of cement clinker and slag. It is an ideal mill that integrates crushing, drying, powder grinding, and classification conveying. It can be widely used in industries such as cement, power, metallurgy, chemical, and non-metallic minerals.
Primary Structure
The vertical mill is mainly composed of parts such as the classifier, roller unit, grinding disc unit, pressure unit, reducer, motor, housing, and collection unit. The separator is a energy-saving classifier. The roller is the component used for crushing and粉碎 materials. The grinding disc is fixed on the output shaft of the reducer and is where the roller crushes the material. The pressure unit is the component that provides the crushing pressure for the roller, supplying it with sufficient pressure to crush the material.
Vertical Grinding Mill Working Principle
The vertical powder mill operates by the motor driving the grinding disc through a reducer. Material falls onto the center of the disc from the feeding port via a lock-air feeder, while hot air enters the mill through the inlet. As the disc rotates, the material moves towards the edge under centrifugal force, gets crushed by the roller as it passes through the annular grooves. The crushed material is then picked up by the high-speed airflow around the disc edge, with larger particles falling back onto the disc for re-grinding. The material in the airflow is processed by a separator, where coarse particles fall back onto the disc for re-grinding due to the rotating blades, while the fine, qualified powder is carried out with the airflow. It is collected by the dust collection system, forming the product. The material with moisture is dried as it comes into contact with the hot airflow. By adjusting the temperature of the hot air, the required moisture content of the product can be achieved. The fineness of the product can be adjusted by modifying the separator's rotational speed.
Key Features
Low operating costs
High powdering efficiency: Directly crushes materials by pressing them against the grinding disc with grinding rollers, resulting in low energy consumption, saving up to 30% to 40% of energy compared to ball mill systems.
⑵ Low wear: As the grinding roller does not directly contact the grinding disc during operation, and the roller and lining are made of high-strength wear-resistant materials, the service life is long with minimal wear.
Section 2: Simple Structure
It is an integrated system that combines crushing, drying, powder grinding, and grading conveying, featuring a simple system, compact layout, and occupying an area approximately equal to that of a ball mill system.50%。
Three: Strong drying capacity
Due to direct contact between hot air and the material inside the mill, it boasts strong drying capabilities and energy savings. By adjusting the temperature of the hot air, it can meet the requirements of materials with varying humidity levels.
Four, easy to operate
Equipped with an automatic control system, it allows for remote control and is easy to operate.
Equipped with a device to prevent direct contact between the roller sleeve and the grinding disk liner, thus avoiding destructive impacts and severe vibrations.
Five, Stable Product Quality
Due to the short residence time of materials within the mill, it is easy to monitor and control product particle size and chemical composition, reducing repetitive grinding and ensuring stable product quality.
Section 6: Easy Maintenance
Through overhauling the hydraulic cylinder, rotating the boom, and replacing roller sleeves and liners, it is convenient and quick, reducing downtime losses.
7. Environmental Protection
Low vibration, low noise, and the device is fully sealed. The system operates under negative pressure, with no dust leakage, ensuring a clean environment and meeting national environmental protection requirements.
Application Fields
1. Coal powder preparation for steel mills, power plants, and cement factories, as well as large-scale powder production from coal gangue.
2. Power plant desulfurization limestone powder production; large-scale production preparation of hundreds of ore types with various hardness in the non-metallic mineral industry.
3. Grinding of steel mill slag and blast furnace slag, as well as power plant slag and fly ash.
4. Large-scale, high-fineness powder grinding of quartz and talc for the glass fiber industry.
5. Large-scale powder production of various chemical raw materials in the chemical industry.
6. Large-scale industrial preparation of powdered formulations for a wide variety of materials across over a hundred industries.
7. There is also a promising future in the pre-milling of powdered slag and cement clinker.
Primary Technical Parameters
Model Number | Product Quantity （t/h） | Raw material moisture | Finished Product FinenessR0.08) | Finished Product Moisture （%） | Motor Power （kw） |
ZYLM800 | 5-10 | <10% | ≤12% | ≤1 | 75 |
ZYLM 1300 | 20-25 | <10% | ≤12% | ≤1 | 200 |
ZYLM 1700 | 40-50 | <10% | ≤12% | ≤1 | 400 |
ZYLM 1900 | 60-80 | <10% | ≤12% | ≤1 | 500 |
ZYLM 2200 | 85-110 | <10% | ≤12% | ≤1 | 800 |
ZYLM 2400 | 95-130 | <10% | ≤12% | ≤1 | 900 |
Note: Varies by material, yields differ.
