Roller mill and ball mill

The ball mill's general explanation:

Using the whereabouts of the grinding ball and pebbles (such as impact) and polishing and grinding ball mill and wall materials and mixed grinding. When the ball mill turns, due to the wall and grinding ball grinding of the friction between the role. According to the direction of rotating grinding body after falling on again. This material is continuously by grinding. According to the shape of the body can be divided into cylinder ball mill , cone ball mill and tube mill (also called tube mill).

Advantage:

1. (1) can be used to dry or wet grinding mill,
2. (2) operating conditions, crushing machine in airtight, not within the dust flying,
3. (3), reliable operation, grinding, and convenient to replace body cheap,
4. (4) can be intermittent operation, also can be operated continuously,
5. (5) crushing explosive materials, grinding can be filled with inert gases to replace the air.

Faults:

1. (1) bulky heavy,
2. (2) operation when strong vibration and noise, must have the solid foundation,
3. (3) working efficiency, low energy consumption, bigger,
4. (4) grinding and the friction loss, and will contaminate products. Widely used in crushing hard material feeding.

Slag grinding

Blast furnace slag water quenching process as active mixing materials in the cement industry
That is widely used, application and clinker and plaster mixed with materials such as after grinding.
According to Chinese standard, ordinary cement slag cement admixture of 15% below, slag cement supreme mixing

For 70 percent, the actual production of slag cement admixture of general only 30% ~ 40%. Affect ore
Slag is the main reason of the admixture of clinker and slag mixed grinding, due to the relatively difficult slag grinding (mine The slag grinding clinker higher than 30%), the slag cement clinker components, components of coarse than Activity to improve, thereby affecting cement strength.

If the slag grinding to separate 4500cm2 / g more fineness and high-grade pure Portland again
Cement mixed, not only can improve the admixture of slag cement, and can be improved
Cement and concrete phychemical properties of slag, give full play to the potential value.
From the middle of the 1990s, the world more and more cement and steel enterprises Start using a separate grinding process of slag powder preparation. The equipment adopts mainly have three: the ball Roller grinding mill, and roller machine, roller mill by simple process, drying system has strong ability of low power consumption and Advantages and rapid development, China's largest steel enterprises most slag has been built Grinding mill production line.
φ 3.0 x 13m ball mill also can use single fan circle flow system.
From the mixture of slag mix station, feeding grinding mill , out of the ground
Bucket to efficient classifier, elected powdered sorting by belt conveyor to mine
Slag grinding with new feeding grinding, with a fine powder with air into the bag dust collector, take mine
Slag finished by air slides, hoist, slag repository to purify the air after discharge
The atmosphere.