grindingmill88@gmail.com Structure of Ultrafine Vertical Grinding Mill:
The reducer of the ultrafine vertical grinding mill system makes the grinding table rotate. And raw material is delivered into the grinding house by the belt feeder through the air-block device. As the grinding table rotate, there will be centrifugal force, which will move the raw material towards the edge of grinding table. And the raw material will be ground between rollers and grinding table.
Motor power is transmitted to the ultrafine vertical grinding mill reducer via coupling. The reducer outputs torque, which makes the grinding disc rotate circumferentially. It constitutes an important part of a vertical grinder. It is equipped with independent lubrication and cooling stations, and automatic protection system of oil pressure and oil temperature. Please refer to its instructions for its working principle and application method.
With the pressure of the roller, the materials are smashed by extrusion, grinding and shearing. At the same time, the airflow will blow the powder up through the classifier, and the coarser powder will be blocked by the turbine classifier and falls down onto the grinding table to be reground. And the fine powder will be collected in the pulse-jet collector. This step repeats until qualified fine powder is discharged. These constitute the entire grinding process.
The ultrafine vertical grinding mill, with static and dynamic separator, can produce powder with a fineness range of 325mesh(40μm) to 2500 mesh(5μm). This ultrafine vertical grinding mill can be widely used in chemical, metallurgy, non-metallic mining industries for grinding limestone, calcite, marble, calcium carbonate, kaolin, barite, bentonite, pyrophyllite etc. Ultrafine vertical grinding mill is capable of providing high qulity filers and additives used in the papermaking, segments, plastic, rubber, pigment,printing ink, PVC and so on.
Working Principle of Ultrafine Vertical Grinding Mill:
The reducer makes the grinding table rotate. The crushed stone conveyed to the grinding house by belt conveyor falls down onto the grinding table because of gravity. With help of the centrifugal force of the rotating grinding table, calcite moves from center to edge. And at the same time, calcite is ground between roller and ring. After being ground, the ultrafine powder goes through the classifier into the pulse-jet collector with the help of air blower sucking. Coarser powder will fall down to the ultrafine vertical grinding mill again due to its large self-gravity and get reground.
The Advantages of Ultrafine Vertical Grinding Mill:
1. Wide range of powder fineness: Turbo air classifier is installed in the ultrafine vertical grinding mill, which can produce powder with various fineness and higher sieving rate.
2. Lower power consumption and Higher Output
3. The calcite powder produced by ultrafine vertical grinding mill has a narrow particle size distribution, control gap of 2μm powder content, high profit margins and added value.
4.Because of the use of hydraulic system to adjust the gap between roller and ring, which brings lower vibration and lower noise
5. Environment-friendly and 99.99% of the powder can be collected.
6. Automatic control with PLC system to guarantee easy operation and labor saving.
Ultrafine Vertical Grinding Mill with Higher Grinding Efficiency
Our ultrafine vertical grinding mill reducer is equipped with inverter control system, so the reducer RPM can be adjusted to achieve higher grinding efficiency.
Rotation speed of ultrafine vertical grinding mill is an important factor, which can affect the grinding efficiency. As the rotation speed goes up, the friction between the grinding media and stone is increased, so this can improve grinding efficiency. However, the rotation speed should not be too high. If The rotation speed is too high, the stone will move out of the grinding contact surface, and the powder shape will be also influenced, and the vibration of the whole vertical roller mill will be higher. So the grinding efficiency cannot be improved. The suitable rotation speed is the right choice.
Technical Data of Ultrafine Vertical Grinding Mill:
