China Granulated Blast Furnace Slag Vertical Roller Mill

Product Introduction
Vertical Slag Mill is the equipment to grind Ground Granulated Blast furnace Slag into small particles. Quality slag (fineness:4200-4500cm2/g) produced by vertical roller mills are being used to substitute clinker in conventional cement manufacturing as well as to partially replace OPC for ready-mixed concrete production, for which the percentage of GGBS usage is typically at 10-15% and 20-25% respectively.

Process introduction
The material through the feed tube fell into the center of slag grinding plant, and then the materials outwards the surrounding area of grinding plate at centrifugal force, to forms a certain thick layer of materials bed, at the same time material was crushed by number of vertical mill rollers.
The slag(slag product applications) materials continuous moving to the outer edge of the grinding plate, off the grinding plate materials rising with the hot air which enter from wind ring into the vertical roller mill, through the vertical roller mill shell into the middle of the separator, in this course materials and hot gas got a fully heat exchange, the water quickly evaporates.
Separator controls the finished product output size, greater than the specified size are separated and fall back to the plate, while meet the fineness demands are brought through the separator into the finished product warehouse.
Specifications

ModelGrinding Table Diameter (mm)Motor (kW)Output (t/h)GRMS19190056015GRMS23230071020GRMS262600100028GRMS303000140040GRMS333300160045GRMS363600200060GRMS383800224065GRMS404000250075GRMS434300300090GRMS464600315095GRMS5050004000125GRMS5353004500145GRMS5656005000155GRMS6060006300180GRMS6565007300220GRMS7070008500260
Note: mill spectral pattern benchmark
(1) Material medium friction (MFs)=0.9~1.0;
(2) Material moisture max 15%;
(3) Refined powder granularity 4200~4500 cm²/g;
(4) Refined powder moisture 0.5~1.0%;
(5) The concrete mill installed power and technology parameter will be adjusted appropritely basing on the actual material property and requirements of owner;
Characteristics
1. Reduce investment costs, intelligent control
GRMS integrates the functions of crushing, grinding, drying, separating and conveying, with compact structure, covering an area of approximately 50% of that of ball mill system. And it can be laid outdoors, so that investment cost is greatly reduced; it is equipped with PLC/DCS automatic control system, can realize remote control and simple operation.2. Adjust fineness according to demands
A new efficient cage-shaped rotor separator ensures the finished surface area can be adjusted flexibly in the range of 400~550 /kg, to meet customer different requirements on fineness.
3. Power consumption per set of GRMS is not more than 30Kwh
The horizontal grinding table and conical grinding roller are adopted to ensure the material to form a stable material bed. The energy consumption is low, saving 30% - 40% compared with the ball milling system;
4. Remarkable energy-saving and environmental protection, convenient maintenance
The system is in the state of negative pressure, no dust overflow. Environment is clean, meeting the environmental protection requirements; through the maintenance of the oil cylinder, turning the rocker arm to replace the roller sleeve and lining plate is convenient and fast, so as to reduce downtime losses.
5. Original spare parts to reduce maintenance worries
Grinding rollers, rocker arms and other spare parts in the whole system are manufactured by CHAENG originally, ensuring the quality and greatly reducing the customer's worries of no where to find the spare parts.

6. metal recovery rate of per-ton slag is great
Special design of the iron removal device can make pig iron recovery rate reach 0.2-0.3%, so that the per-ton production of slag can get higher metal income, and to avoid the metal "enrichment" phenomenon, reduce the consumption of wearing parts and decrease maintenance costs.
Customer stories
CHAENG slag(slag product applications) vertical roller mill is applied to the construction of GGBFS production line, such as Indonesia with 300,000 tons/year nickel slag powder production line. By now, CHAENG has built more than 90 slag vertical rollers mill production line at home and abroad.

Picture: GRMS46.41 slag vertical roller mill used in 600,000 tons/year slag production line in Guangdong Province, China

Picture: GRMS slag vertical roller mill used in 300,000 tons/year GGBFS production line EPC project
Picture: 600,000 tons/year slag production line in Hebei Province, China
Service & Surport
CHAENG provide EPC- turnkey service including research report, engineering design, manufacture, civil engineer, installation and commissioning and until achieves the designing capacity and production standard.



about CHAENG
Founded in 1958 and located in Xinxiang, Henan province, CHAENG with 60-year experience in equipment manufacturing covers an area of 330,000 m2 and its annual production value is 1 billion yuan. The company specializes in manufacturing tube mills, rotary kilns, vertical mills and large steel casting and can undertake the EPC projects of cement production lines, active lime production lines, blast furnace slag/ steel slag/ nickel slag grinding plants, and its products are sold to more than 50 countries and regions in Southeast Asia, Central Asia, South Asia, North America, South America and Europe.