Ball mill is the key equipment for crushing materials after crushing. It is suitable for grinding various ores and other materials and is widely used in mineral processing, building materials, and chemical industries. Ball grinding mills are mainly divided into dry and wet grinding methods. Many customers think that there is not much difference between a dry ball mill and a wet ball mill. In fact, there is a big difference between them. Below I will specifically describe the differences between the two in terms of their structure, scope of application, performance, grinding media, etc. What’s more, teach you how to choose the right ball mill.
1. The difference between dry grinding ball mill and wet grinding ball mill
1. Different structure
The discharge port of the dry stone ball mill is straight cylindrical and is also equipped with auxiliary equipment such as an air induction device, dust collector, dust exhaust pipe, and so on.
The discharge port of the wet ball grinder mill is trumpet-shaped with a built-in screw device, but no auxiliary equipment is required, and the structure is simple.
2. The scope of application is different
A dry ball mill machine is a commonly used powder-making equipment; a wet ball ore mill machine is a commonly used beneficiation equipment.
Dry ball mill: The material must be dry and must not contain water. It is suitable for materials such as cement and building stones that will produce other substances in contact with water. If the processing plant is located in arid areas and water resources are scarce, we can choose a dry ball mill equipment, which not only saves water resources but also has low pollution.
Wet ball mill: It has a wide range of applications and is suitable for various metal and non-metal ores. Common ores are gold, silver, copper, phosphate, iron, molybdenum, etc. Wet grinding ball mills can be used for materials that cannot change in contact with water.
3. Different performance
Dry ball mill: It adopts grate plate type grinding tail discharging, the discharging is smooth, there is no rising and grinding phenomenon, the cylinder does not need to be cooled, the service life is long, and the failure rate is low. However, due to the design of the cylinder, sometimes a blind spot is formed, and the material in the blind spot cannot be ground.
Wet ball mill: Rolling bearings are used instead of sliding bearings, with low energy consumption, low friction, and long service life of the magnetic liner. However, the wet-milled powder needs to be dried to remove moisture or other liquid media, which will increase the cost.
4. Different grinding media
The dry ball mill equipment only needs to add steel balls; in addition to the steel balls, the wet grinder ball mill machine also needs to add liquid to participate in the grinding. The ratio of steel balls to water needs to be adjusted according to materials of different properties.
From the perspective of the economic effect of grinding operations, wet gold grinding ball mills are relatively cheap, with high productivity, less product over-crushing, strong adaptability to materials, and continuous production. Most concentrators will use wet ball mills. However, for certain water-repellent minerals, dry water-deficient areas, harsh climate conditions, continuous low temperature, and areas that are not suitable for water use, dry stone ball mills are usually used.
In general, they each have their own advantages and disadvantages. We have to consider the production cost, material properties, characteristics, product requirements, working environment, and other aspects to choosing the ball mill for sale that suits us. The Nile Machinery Company has an experienced business team and a professional technical team. We will choose the right ball mill supplier for you according to your materials, venues, needs, etc. If you want to know more about ball mills and other mining machinery, please feel free to consult.
