subject: A New Type Of Grinding Mill Machine-mtw Trapezium Mill [print this page] The MTW Series Continental Trapezoid Grinding mills are mainly applied to the powder processing of mineral products in the industries of mining,metallurgy,chemical,and contruction materials,etc. They can produce powder from various non-flammable and non-explosive mineral materials with Mohs hardness below9 and humidity below 6%,such as quartz,feldspar,calcite,talcum,marble, ceramics,iron mine,soft coal,dolomite,active carbon,plum sandstone,basalt,etc.
(1)Main shaft transmission: MTW series mills adopt bevel gear integral transmission ,which will better compact the whole structure,simplify the installation as well as improve the efficiency.The traditional mill needs decelerator and ratcheting to drive the main shaft that increases the installing difficulty and is easy to bring noise and reduce the efficiency.
(2) Inner lubrication system: MTW series mills adopt light-oil lubrication to achieve the lubrication between the main bearing and gear bearing, without oil pump or lubrication station. The traditional mills lubrication adopts grease lubrication which increases the resistance of lubrication, creates high inherent temperature and shortens the service life of bearing.
(3) Arc whirl tube: MTW series mills adopt arc whirl tube to reduce the resistance and avoid the air-stop and so on. The traditional mills adopt board-type whirl tube that increases the resistance, reduces the performance, and stops the air flow and so on.
(4) Curved surface shovel with changeable edge: The traditional mills adopt quick wear edge and edge is combined with shovel.If the edge is worn, all of the shovel should be changed,which increases the cost and the off time.The edge of MTW series mill adopts wearable alloy materials which improve the service life.The Changeable edge is easy to change ,which saves time and cost. The traditional flat shovel make the materials accumulate in one level,which reduces the ring and rollerservice life.The curved surface shovel makes a vertical material liner,which increases the working capacity.
MTW Trapezium Mill Working Principle:
The bevel gear drives the main shaft, which is connected to the roller hanger on the top. There are grinding rollers installed in the hangers and forming a swing support. The rollers rotate not just around the main shaft, but also around the grinding ring. Besides, rollers can rotate itself as well because of the friction. Shovels are installed at the bottom of hanger; when shovels rotate together with rollers, materials will be fed into space between rollers to form a material layer, which will be grinded due to centrifugal force. The classifier drives the blades in the rotary table through the speed motor to classify the powder.
