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Limestone Vertical Roller Mill 30 T/H Powder Equipment 325 Mesh Fine Powder Vertical Grinding Mill
Description
As a professional comprehensive service provider for grinding
systems, Hefei Hengcheng, with excellent technology and rich
experience in contracting and operation, can provide customers with
a comprehensive solution for the preparation of limestone micro
powder, greatly improving the comprehensive utilization benefits of
limestone and achieving good economic and environmental benefits
for enterprises.
【Processing materials】 Calcium carbonate, limestone, barite, heavy calcium carbonate, etc
【Processing capacity】Annual production of 300000 to 1 million tons
【Equipment configuration】HVM vertical mill+complete set of auxiliary equipment+electrical
appliances, etc
Vertical Mill Working Principle:
The main motor drives the grinding disc to rotate through a
reducer, and the material enters the vertical mill main machine
through a screw conveyor. It is then subjected to gravity and falls
to the center of the grinding disc. At the same time, the airflow
generated by the fan enters the main machine through the air inlet.
Under the action of centrifugal force, the material moves uniformly
from the center to the edge of the grinding disc. When passing
through the roller conveyor area on the grinding disc, it is
crushed by the grinding rollers, and large blocks of material are
directly crushed. Fine particles of material are compressed to form
a material layer for inter particle crushing. The crushed material
continues to move towards the edge of the grinding disc until it is
carried away by the strong air flow of the annular guide groove on
the periphery of the grinding disc. Coarse materials fall back into
the grinding disc due to their high gravity and are ground again;
Fine materials enter the powder selection system above the main
machine for classification as the airflow rises. Under the action
of the rotor blades of the classifier, coarser particles are
knocked off by the blades and returned to the grinding disc for
grinding. Qualified fine powder will be carried out of the powder
selection system with negative pressure air flow, enter the dust
removal equipment, and then collected by the powder collector to
form the finished product. In addition, other large particle
materials and debris will fall into the lower chamber of the mill
during grinding, and be scraped into the slag discharge port by the
scraper, effectively ensuring the quality of the finished product.
By adjusting the pressure of the hydraulic system, the grinding
roller pressure can be adjusted to adapt to different hardness raw
materials within a certain range. The rotor speed of the grading
system with multiple grading wheels can be adjusted and controlled,
and various qualified products with different specifications can be
obtained.
Technical Data
Model | HVM1250 | HVM1300 | HVM1500 | HVM1700 | HVM1900 | HVM2400 | HVM2500 | HVM2800 |
Grinding Table Median Diameter(mm) | 1250 | 1300 | 1500 | 1700 | 1900 | 2400 | 2500 | 2800 |
Capacity(t/h) | 6~9 | 9~13 | 15~20 | 24~32 | 26~35 | 36~45 | 45~58 | 56~80 |
Material Moisture | ≤5% | |||||||
Limestone Powder Fineness | 325 mesh (44um) 90% passed | |||||||
Main Motor Power(kw) | 110/132 | 185/200 | 250/280 | 355/400 | 450/500 | 450/500 | 710/800 | 1120/1250 |
Re:The data based on Mohs'hardness 3-4 material
Limestone Bond Index≤13kwh/t
The limestone grinding process plan of Hefei Hengcheng will be
based on customer usage, with the principle of "reliable
production, excellent technology, investment savings, and improved
efficiency". The selection of equipment emphasizes the grinding
technology and equipment development level, emphasizes the
reliability of equipment operation, saves investment and other
factors. Having unparalleled advantages in various aspects:
Vertical Grinding Mill Technical advantages
Adopting vertical grinding technology, the equipment runs smoothly
with low failure rate, adapting to the trend of large-scale and
green development in the industry.
Energy conservation and environmental protection
Adopting vertical grinding technology, the grinding efficiency is
high, and the power consumption of the ton stone powder system is
less than 30 degrees; Install dust collectors uniformly at all dust
points on the production line, ensuring dust emissions of ≤ 10mg/Nm
³, Meets national environmental protection requirements.
Diversification of Lean Design Products
The fineness of the cage rotor powder selection machine can be
freely adjusted between 200-600 ㎡/kg to meet the needs of customers
in producing different products.
Customer site
Practice accumulates experience, and experience leads to
professionalism. Hefei Hengcheng can provide customers with an
integrated service model of raw material supply, scheme design,
equipment manufacturing, installation and construction, and
contracted operation, which updates production and operation
services and production line upgrading services on the basis of the
original installation and construction.