LM series vertical mill is a new type of milling equipment with advanced technology, excellent performance and drying function.It integrates the functions of drying, grinding and powder classifying,used in construction,coal,power plant,steel plant,construction,cement,ceramic and easy maintenance, power saving, fast investment return, electricity and other industries,and It has gradually become the mainstream equipment in the grinding industry.
LM series vertical mill is mainly composed of classifier, roller device, grinding disk device, pressure device, speed reducer, electric motor and housing. Classifier is a kind of efficient and energy-saving powder concentrator. The roller is a component which is used for crushing the materials.Turntable is fixed on the output shaft of the speed reducer where the materials are crushed. Pressure device is a component which is used for providing the roller with enough crush pressure to crushing materials.
Vertical mill is suitable for procseeing materials, such as calcium carbonate, kaolin, bentonite, talc, mica, attapulgite, barite, gypsum and graphite and so on.
Coal is a kind of inflammable and explosive mineral. An ordinary mill is unable to be used for production of the coal and therefore the grinding process of the vertical mill has gradually become mature.
Slag processing has become an important link in the industrial production along with the development of the industrial technology and its structure characteristics have determined the important position among the slag grinding industry.
Vertical mill has been playing an important role in the cement industry day by day with the development of scientific technology and it is not only applicable for grinding raw materials and clinkers but also can be used as a pre-grinding equipment which helps the sequent mill to substantially increase yield and save energy. Therefore it has gradually become the main products to substitute the cement industrial mills.
The mill disk is driven by the gear box through electrical motor and the material will be fed to the center of the disk from the feeding port via an air-locking feeder and meanwhile the hot-blast air will be blown into the mill through the air inlet. Along with the rotation of the mill disk, the materials will move to the edge of the disk under the action of centrifugal force and grinded and crushed by a grinding roller when they pass through the circular groove on the disk. The crushed materials will be blown up by the high speed air at the edge of disk and the large-sized particles will fall onto the disk to be re-pulverized. The qualified fine particles will go out of mill along with the airflow and the finished products will be collected by a dust collecting device. The materials which contain moisture will be dried when they are contacting with the hot airflow. The product can meet the requirements of the materials in different humidity by regulating the hot-blast temperatures as to obtain the moisture and the fineness required by different products can be achieved by regulating the classifier.
Low Operating Costs
The materials are rolled and crushed on the roller which helps to lower energy consumption and 30% to 40% energy will be saved comparing to the ball mill system.
As the roller does not directly contact the turntable directly and the roller and lining board is made of quality materials, therefore it enjoys longer service life and less wear.
The roller sleeve can be used by turning it over and its service life will be doubled.
Efficient Pulverizing
Pulverizing power will be increased through pressurizing the hydraulic pressure so as to increase the pulverizing yield and improving pulverizing efficiency.Meanwhile, it is also fitted with a limit device , only for the ground material,prevent only for grinding the material, prevent grinding roller and grinding ring accidental contact to cause equipment vibration and even wear.
High Precision of Powder
Concentration
Both cage-type powder concentrator (High efficient dynamic and static powder concentrator) and cone rotor powder concentrator (High efficient dynamic and powder concentrator) are adopted respectively according to the different requirements on the grain size of the finished products.
Stable Quality
Pulverizing power will be increased through pressurizing the hydraulic pressure so as to increase the pulverizing yield and improving pulverizing efficiency.Meanwhile, it is also fitted with a limit device , only for the ground material,prevent only for grinding the material, prevent grinding roller and grinding ring accidental contact to cause equipment vibration and even wear.
Strong Drying Ability
Featuring strong drying ability and a maximum feeding moisture of 15%, it can both save a dryer and energy for the mill system due to the hot air contacts the materials in the mill and it can meet different material humidity requirements through adjusting the hot air temperature.
Easy Maintenance
Losses arouse from the shut down of the machine will be reduced and the labor costs will also be saved through hauling oil cylinder, turning over the rotor arm, replacing the roller sleeve and lining board conveniently.
Environment-friendly
Featuring small vibration, low noise and overall sealing of the equipment, there is no overflow of the dust and it is clean and environment-friendly when the system is working under load which is able to meet the requirements of environment protection by the state.