Upgrading for Tube Mill/ Ball Mill

Tube Mill/Ball Mill is an important grinding equipment in heavy industries especially for cement plants, increasing the output of Ball mill has great significance for one cement plant to reduce costs and improve production efficiency. According to the cement production line, our company can design and optimize the internal structure of Ball Mill, in order to improve the grinding process, increase production and reduce consumption, so as to bring significant economic and social benefits for cement plants.

1. Improve Output: After upgrading, the unit output per hour can be greatly improved. Below are the results:

1) The unit output per hour was increased by 30% after the using of double closed-circuit multi-separation grinding energy-saving technology.

2) Via adopting a series of optimization methods, the average output of P · C32.5R cement and P · O42.5 cement would be increased by 20t/h.

3) After modification of the open-circuit combined grinding system, the output can be increased by 10% around.


2. Reduce Energy Consumption.

1) The power consumption of cement per ton can be reduced a lot. For instance, the using of multi-separation grinding energy-saving technology can help to reduce by 30% of the power consumption for cement per ton.

2) After the optimization, the average power consumption is reduced by 5-6kWh /t. such as for an open-circuit combined grinding system, the grinding power consumption is reduced to about 26.0kWh/t.


3. Improve the Quality & Performance of Cement.

After upgrading a Ball mill, the quality and performance of cement can be improved a lot, the index of specific surface area for finished product will be more stable.

For example, the specific surface area of cement can be increased from 320m²/kg to 360m²/kg, and the particle distribution of cement is more even.

The purpose of upgrading Ball Mill:

Proposals to Upgrade Ball Mill

1) Optimize the effective storage ratio of each chamber.

According to the characteristics of the material such as the particle size, moisture and temperature of the material, designing the most suitable length for every chambers.

For example, for the Ball Mill which handles easy grinding material, it is suggested to reduce the length of coarse grinding chamber and increase the length of fine chamber, and this way can help to improve the fineness of product.

For one Ball Mill dealings with difficult grinding materials, it is necessary to increase the length of coarse grinding chamber to ensure sufficient grinding energy.


2) Optimize the Lining Types of Each Chambers:

According to process configuration of the whole grinding system and characteristics of grinding material, to select the most suitable types of mill liners, which can help to achieve the optimized moving track of material and grinding media, so as to realize the efficient grinding of the material.


3) Modification Intermediate Diaphragm and Discharge Grate Plate.

Choosing the suitable chamber forms and grate gap value to ensure efficiency ventilation and feeding capacity, and reduce over-grinding, so as to produce qualified product.


4) Optimize Gradation of Grinding Media.