Explain the Roller Mill in Details
Roller Mill Introduction:
The High Pressure Suspension roller mill is our company chief engineer wear equipment expert Mr. Bai Yinghui based on many years experience in the high fine powder generation and processing, devoted themselves to developing a new type of milling equipment, thus creating an international industrial milling efficiency, low energy consumption of a new era. High pressure hanging roller mill used to crush the Mohs hardness of barite, limestone, ceramic, slag is not greater than 9.3 and humidity below 6% non-flammable and explosive in mining, metallurgy, chemicals, building materials industry, more than 280 kinds of material for high fine powder generation and processing, finished size is adjusted in the range of 80-425 mesh (the smallest 1,000 head). Machine by adding a special device to produce a meal of 30-80.
explain the roller mill in details
High Pressure Suspension roller mill is mainly composed by the host, the fine analysis machine, Blower, finished whirlwind plot of powder, bag filter and link the wind pipe. Crusher, according to user needs can also be equipped with auxiliary equipment to enhance the machine, storage silo, electromagnetic vibrating feeder and electrical control cabinet. In the host, and roller components through the cross arm suspension in the roll grinding hanger on, roll grinding hanger with the spindle and blade knife fixed contact pressure spring roller bearings room cantilevered outer end face, cross arm fulcrum to force the grinding rollers tightly pressed on the circular surface grinding ring mounted on the shovel blade on the tool holder and roller synchronous rotating the roller round rolling in the grinding ring at the same time, when the motor through a gear-driven spindle rotation, rotation. Impeller rotation analysis of the motor through a gear-driven machine, the higher the impeller speed, the finer the powder will sub-elected.
Roller Mill Working Details:
Let me explain the roller mill in details on it is working:
Mill the whole course of their work (grinding material process): the large bulk materials jaw crusher broken to the desired particle size by the hoist materials sent to the storage hopper, the material by vibrating feeder uniform quantitative continuously fed into the grinding room grinding, grinding powder will fan airflow away powder machine grading, in line with the fineness of the powder with the flow through pipes into the cyclone powder collector, were separated collection, then the pollen tube discharge is refined powder. The airflow from the upper end of the cyclone powder collector return air duct inhalation induced draft fan. The machine throughout the airflow system is closed loop, and the circulation flow in the vacuum state.
The heat generated in the grinding room have a certain moisture content due to the material to be ground, grinding grinding indoor gas evaporation expansion change the gas flow rate, as well as the whole pipeline the the junction Mifengbuyan, outside the gas is inhaled, the air circulation flow increase the balance of airflow to achieve this, adjust the fan and the exhaust pipe between the host, and the excess gas into the bag filter to collect the residual gas into the micronized down, the residual gas to be purified after discharge.
The host process is motor driven by the host spindle, spindle upper end of the roller suspender is connected to the roller device through the cross arm lifting and the formation of the swing fulcrum on the roller suspender not only around the central axis of rotation, while in the centrifugal force, the role of under the grinding roller along the grinding ring round rolling mill rolls itself due to friction and rotation. Equipped with a blade knife roll grinding hanger lower end of flange blade knife with a blade tilt the front end of the blade close to the grinding chamber liner, back-end in the grinding roller and grinding ring formed by the wedge-shaped gap, shovel knife and grinding roller with the process of transfer materials shovel to throw between the feed mill roll grinding ring to be squeezed, crushed. From the bottom of the grinding ring into the grinding chamber airflow small particles powder with selected powder, which reached milling purposes.
Separator speed motor-driven blades rotating on the turntable, the formation of the eddy current effect on the powder from the classification. The speed of the blade speed to be adjusted according to the refined powder particle size. To obtain a more fine-grained powder neutrons, it is necessary to improve the speed of the blades, so that undesirable powder will be thrown to the bottom of the meal the child due to their own gravity to fall into the grinding chamber for grinding, qualified finished powder child through the leaves with the air sucked into the cyclone powder collector, after the separation of the airflow and the powder will be, the powder will be collected.
Cyclone powder collector to play an important role in the performance of the mill, with powder flow into the powder collector is a high-speed rotation, until the separation of airflow and powder sub airflow with cone wall contraction to the center move to the cone the end of time (since the airflow natural length) to form a rotating upward airflow cylindrical, this time the powder will be separated fall collection. The bottom of the powder collector equipped with upper and lower seal valves, falling powder will take away from the powder collector, by sealing the valve discharge. Upward rotating air core formed in the conical bottom of the powder collector negative pressure state, so the seal on the bottom of the powder collector demanding and must be strictly separated from the outside air that would otherwise be collected under the powder will be the core flow away, which directly affects the output of the machine, so the bottom of the powder collector equipped with a sealing valve, and its role is to isolate outside positive-pressure gas and powder collector negative pressure inside the gas, which is a very important components, such as do not install the upper and lower sealing valve or the upper and lower sealing valve sealing leakage will cause no powder or less flour, seriously affecting the whole production.