The grinding stage use the material after the crushing stages to achive a finer output material. Crushers are used to reduce particle size enough so that the material can be processed into finer particles like powders in a grinder.
A mill is a device that breaks solid materials into smaller pieces by grinding, crushing, or cutting. Such comminution is an important unit operation in many processes, like the mineral processing. There are many different types of mills and many types of materials can be processed in them.
For systems with multiple components, our ball milling has been shown to be effective in increasing solid-state chemical reactivity. Additionally, it has been shown effective for production of amorphous materials. all those data are test from our lab
In case of continuously operated ball mill, the material to be ground is fed from the left through a 60 cone and the product is discharged through a 30 cone to the right. As the shell rotates, the balls are lifted up on the rising side of the shell and then they cascade down (or drop down on to the feed), from near the top of the shell. In doing so, the solid particles in between the balls and ground are reduced in size by impact.
The size of milling media should be selected based on the material. Multiple milling steps using different size milling media may be needed to achieve the best milling effect. It is also possible to use a combination of milling media sizes in a single milling process to achieve desired final particle size.
Milling media with higher density usually have better milling efficiency and can lead to smaller final particle size of the material to be ground. The media should have higher specific gravity than the material to be milled.
The selection of media composition depends on the compatibility with the material to be milled, and the container and liner materials used in the milling process. The goal is to minimize contamination and yet to achieve the best milling effect.
Tungsten carbide and zirconia milling media typically have higher cost than alumina and agate milling media, however, they are also more wear resistant and provide better milling efficiency, and therefore, the actual milling operation costs can be lower even though the milling media cost is higher.
1. According to the discharging method, the ball mills divided into grid type and overflow type.2. According to the shape of the barrel, divided into short cylinder ball mill, long barrel ball mill, tube mill and cone mill.3. According to the grinding media, divide into steel ball mill, rod mill.4. According to the moisture content, divide into wet type ball mill, dry ball mill.
Most crushing plant on-site working time is 8-10 hours, then the output of the ball mill per hour is required to 10-37.5 TPH. The ball mill models that meet this standard are 2100 3000, 2100 4500, 2200 4500.
The wearing parts of our companys equipment are all made of high wear-resistant materials. The cylinder, liner, grinding medium, partition board and discharge grate are made of high-quality original components, which are durable and have a double longer life than ordinary wear parts, please call for a discussion.
Eastman is a typical direct selling enterprise with green and standardized production plants. All the delivery of the equipment will be completed within the delivery period signed by the contract to ensure the smooth commissioning of the equipment.
Ball mill is a type of grinder machine which uses steel ball as grinding medium, can crush and grind the materials to 35 mesh or finer, adopted in open or close circuit. The feed materials can be dry or wet, they are broken by the force of impact and attrition that created by the different sized balls.Types of ball milldry grinding ball mill and wet grinding ball mill; grate discharge ball mill and overflow ball mill.Applicationsmining, chemical, glass, ceramics, etc.Suitable MaterialsCement, silicate products, new building materials, refractory materials, fertilizers, mineral processing and glass ceramics.
Ball mill is a horizontal machine, contains a hollow cylindrical shell that rotates around its axis, Inside the cylinder, there are many different sized stainless steel balls. As the the cylinder rotates, the mill balls lifts and then drops, strikes the materials, that is the impact and attrition take place.The cylinder chamber which turning around the horizontal axis is partially filled with grinding mediums: mostly are steel balls, cast iron or porcelain balls. Filling rate best at 40%, steel balls diameter with 30 to 80mm.These grinding balls are initially 3-10 cm in diameter, but gradually became smaller as grinding progressed. So we usually just refill the big balls.The chamber is lined with a wear resistant material, such as manganese-steel or high quality rubber, to extend the service time.Thanks to the closed grinding chamber, the dust and pollution generated in the grinding process are avoided to emit to air.
Eastman provides you with complete rock crushers and full list of replacement parts, original ball mill parts, form and function are a perfect fit.If your equipment breaks down, the productivity of the whole factory will be threatened. Critical wear parts are shipped with the goods to ensure they are available when you need them and to reduce maintenance time.
Eastman is a crushing manufacturer with more than 30 years of experience, produces hammer crusher used for a variety of applications.We not only can provide you with various types of rock crusher, but also can design reasonable crushing process for you free.
Factors of ball mill product sizeWithin the rotating chamber the grinding balls rub and strike against each other.The final discharge size can be changed by changing the number and size of the steel balls, the material of the ball, rotate speed, and the what material to be ground. Besides, the ball mill production rate is directly proportional to the drum rotation speed. Check the ball mill critical rotation speed which indicated in the manufacturers technical specifications.