Overview
LM series vertical roller mills are a excellent grinding equipment, which have the capacity of 24 hours constant running. Because of this automatic operation, this LM series vertical roller mills are popular in the condition, which needs easy monitor, large capaity, constant running, stable product quality, like large mineral powder plant, cement plant, GGBS powder plant, coal grinding plant, etc.
Features
High Purity of Material
LM Vertical Grinding Mill can effectively control product size, chemical composition and iron content, and ensure the purity and whiteness of finished materials.
2. Less Comprehensive Investment
LM Vertical Grinding Mill adopts a compact integrated design, which covers an area of about 50% of the ball mill system, and can be arranged in the open air with less comprehensive investment.
3. High Degree of Automation
LM Vertical Grinding Mill is equipped with an automatic control system, which can realize free switching between remote control and local control. It is easy to operate and has low labor cost.
4. Environmentally Friendly
LM Vertical Grinding Mill is sealed and operates under negative pressure, characterized by no dust spillover, small vibration, low noise, and more eco-friendly production.
Working Principle
The main motor drives the grinding plate by the reducer, simultaneously the hot air enters the vertical mill body from the air inlet and the materials drop on the grinding plate center from the feed opening and evenly move outwards due to centrifugal force. The materials are ground by grinding rollers when passing through the grinding area on the grinding plate, and large size materials will be directly crushed while the fine materials will form a material bed by extrusion for further inter granular crushing. The crushed materials will continue to move towards the mill edge until being taken away by the strong air flow at the vane and collected by the dust collector, while larger material particles will again fall onto the grinding plate for repeated grinding; the coarse particles in the air flow will drop back onto the grinding plate for further grinding when passing through the upper separator under the action of the rotor blade, with the qualified fine powder flowing out of the grinding plate with the air flow and then collected and discharged by the system powder collector as finished powder product.
