Industry Background

With the expansion of industrial production scale, emissions of slag, water slag, fly ash, etc. have shown an upward trend, and the massive discharge of industrial solid waste has had a detrimental effect on the destruction of the environment. As one of the professional powder processing industries, Kefid proposes a comprehensive utilization program for slag powder preparation by means of advanced scientific and technological means and innovative development advantages. This not only enables various types of industrial solid waste to be recycled, but also conforms to the international powder industry's energy saving and environmental protection development trend.

Slag raw materials

Mineral powder finished product

After partially replacing clinker

After partially replacing cement

Intelligent Crafts

The slag raw material is taken by a forklift and fed, and conveyed by a belt conveyor. During the conveying process, the slag raw material is then iron-removed and sieved through the iron remover and the vibrating sieve, and then it is pulverized by the elevator into the VM vertical milling machine. The slag after grinding is hot-air supplied by a hot blast stove, and the powder is selected by a separator and dried at the same time. The slag powder that meets the fineness requirements is finally transported to the dust collector for collection and containment, and then transported by an air transport chute and elevator into the finished product warehouse for storage.

Preferred Equipment

Vertical mill is a large grinding equipment based on years concentrated design and development by introducing advanced European technology and years design and manufacturing experience and market demand of Kefid to solve the problem of low production capacity and high power consumption of traditional grinding mills. Vertical mills can be adopted in cement hydroelectric construction metallurgy chemical and non-metal ore grinding especially in large scale grinding or various ores of lump and grain shape into powder.

Low operation cost img

(1)High grinding efficiency: The roller grinds materials on the mill directly, which makes the energy consumption is . 30%~40% less than the one of Bill Mill.
(2)Little Wear: The roller and lining plate are made of premium material to have long service life.

Auto-control system

The mill is equipped with an auto-control system which allows PCL, centralized and DCS control, which makes the operation much easier and meets the different needs from the customers.

The stability of product quality

The materials stayed shortly in the mill for easily detecting and controlling of the fineness and chemical composition of products, which can make the final size stable. There is few Ferric in final powder and the ferric content come from mechanical wear is easy to remove, the whiteness and purity is high, especial for processing white material.

Environmentally-friendly

The mill makes small noises in its running because there is no direct contact between rollers and the grinding table, so it reduces 20-25 dB than that of ball mill. Plus, the vertical mill is totally sealed and the whole system works in negative pressure, making little dust.

High drying ability

Because the hot wind dries the materials in the mill, a drying machinery is saved. And the temperature of hot wind can be controlled to suit different moisture conditions of different materials.

Reliable hydraulic device and easy maintenance

Hydraulic device is adopted to control the acting force, and the acting force can be automatically adjusted according to different grindability of the raw material, which keeps the grinding mill in a perfect condition, not only reducing the consumption of the idle work, but also prolonging the using life of rollers and liners.

Service Support

Business Sightseeing As soon as you conduct us for information, the service provided by Kefid has been started. Welcome to our nearly 300,000 square meters production base, if there is an order.

Scheme Customization We will design grinding line for you privately according to production site, and technicians can recommend suitable machines to meet requirements of capacity.

Client Review We will help you finish consignment, installation and debugging, and there will be regular visit even the machine has been put into operation. Facing with your problem, we will offer correct solution in 24 hours, and technician can also tell you some tip about maintenance and operation.