Roller Mill For Sale
Roller Mill Introduce
Roller Mill is a new kind of large
scale power mill which is designed specially to solve the problems of low capacity and high
consumption of industry mills. With a decade of years’ research of mills, Roller Mill is
designed and manufactured based on our advanced design idea, and in combination with the
European technology and the market demand. Roller Mill adopts reliable structure and
reasonable process flow, integrated with drying ,milling, classifier , elevator. Especially
,Roller Mill can fully meets the requirement of clients in the high production of powder and
its main technical and economy indicator reaches the international level.
Roller Mill Technology Advantages:
1. Cost Savings
The single largest energy consumption point in the manufacture of portland cement is in the
finish milling process. A reduction in power consumption here makes a dramatic impact on the
plant’s overall power consumption. VRM technology makes significant power reductions
possible by more efficient grinding.
2. Quality
Roller Mill create a particle size distribution with a sharper cut in comparison to cement
milled in a traditional ball mill. That is, the particle size distribution is in a narrower
band. This sharper cut means potentially less variability in product consistency and, hence,
more predictable results in product performance.
3. Process Simplification
By changing various Roller Mill operating parameters, significant adjustments in the
particle size distribution, retention time, and fineness of the finished cement can be
achieved. This can help with plant operations as production is switched between different
cement types.
In light of these issues, Roller Mills are becoming a popular choice for both existing ball
mill conversion and new mill construction. From 2000-2002, 56% of the mill orders
(comprising both raw mills and finish mills) came from vertical mills – compared to 32% for
ball mills. Clearly Roller Mills are an increasingly attractive option for improving
production, lowering energy costs, and maintaining product quality.
Roller Mill Structure and function :
The main structure consists of separator ,roller, mill table, pressurization device,
deceleration machine, motor, shell body, etc. Separator is an important part which
determines the size of the final powder.It is composed of gearing with adjustable speed ,
rotor, guiding vane, shell body , cone filler for coarse powder, blower.
It is a kind of powder collector with high-efficiency , low powder consumption and
convenience. Roller is the main part to grins the materials into powder. Roller Mill is
equipped in the curving arm of the mill. In virtue of the outside force, It pressed the
materials on the table tightly. Driven by the mill table ,the roller runs, so the materials
are grinded into pieces. The mill table is fixed at the output shaft of the deceleration
machine. At the upside of the table is the hoper with an annular groove in which the
materials are grinded.
The pressurization device brings the grinding pressure. It contains oil pressure station,
pull rod of hydraulic pressure for grinding. Deceleration machine carries powder. The rotate
speed of the mill table is the machine’s output speed. According to the position of
humidifier and dust collector. Our company can provide 2 allocation :three blower system and
double blower system. This vertical grinder collect the finished products by whirlmind dust
catcher. This configuration can reduce the working negative pressure and the volume of gas
which through the dust catcher. In vertical grinder can use electrical dust catcher ,also
bag dust catcher as terminal dust removal plant. By using the electrical dust catcher and
bag dust catcher ,the gas can directly go from grinding into dust catcher. This construction
can reduce the quantity of equipments and also simplify the allocation.
Roller Mill Working principles :
The motor dives the grinding table to turn through the speed reducer. At the same time, hot
air comes into the roller mill from the air inlet. The materials fall down the centre of
grinding table from the feeder. Because of the centrifugal force, the materials move to the
edge of grinding table from the centre .The materials are crushed by the grinding roller
when by pass of the groove on the grinding table. The crusher materials continue to move to
the edge of the grinding table until taken away by the airstream. Then the bigger materials
fall down the grinding table and the process of crushing continues. When the materials in
the airstream pass the separator on the top of the mill, the materials fall down the
grinding table from the taper filler under the force of guide leaf blade. The fine powder
comes out with the airstream, and is gathered by the dust catcher of the system. The powder
gathered is the final product of roller mill. In the process of the contact of airstream ,
the materials are dried to meet the clients’ need at the proper moisture.Through the
adjustment of the angle between the separator and the leaf of wind’s direction (not
suitable to the small type of vertical mill), and also the speed of the separator rotor, it
can reach the proper fineness of the materials.
About the Author
The resources come from shanghai zenith company
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