In the cement industry, the ball mill is probably the Nemesis of all staffs. Why? Everybody knows that a cement mill is a technological heresy on a energetic point of view. The mill's efficiency is extremely poor and the work to get some improvement is huge!
We hope this site will give a little help for those who spend a large part of their lives for their ball mill.
In this site, you will find some tools:
Calculators:
- Ball charges: this calculator gives the surface and the average weight of the ball charges. It gives also a rough interpretation of the ball charge efficiency.
- Volume load: it calculates the filling degree of each compartment using the H/D method
- Cement mill (2 compartments) power: it calculates the theoretical absorbed power of the classical cement mill
- Cement mill (3 compartments) power: it calculates the theoretical absorbed power of the cement mill with 3 chambers (mainly in open circuit)
- Monochamber mill power: it calculates the theoretical absorbed power of the monochamber mill (cement mill, raw mill with outlet diaphragm, airswept mill)
- Raw mill power: it calculates the theoretical absorbed power of the raw mill with a drying chamber and a grinding chamber
- Birotator (central discharge) mill power: it calculates the theoretical absorbed power of the mill and the drying chamber
- Ball charge make-up: this calculator gives the percentage for each diameter of balls when there is a make-up schedule
- Tromp Curve: it calculates the separator efficiency with the traditional Tromp curve
- RRB Curve: the particle size distribution of the cement samples
- Drying capacities: this calculator gives a good idea of the present and expected drying capacities of a raw mill
- Heat balance (water): this calculator gives the amount of water required to get the right cement outlet temperature
All these calculators are reliable, but "Drying capacities" and "Heat balance" calculators require a deeper analysis to be confirmed.
We hope this site will give a little help for those who spend a large part of their lives for their ball mill.
In this site, you will find some tools:
Calculators:
- Ball charges: this calculator gives the surface and the average weight of the ball charges. It gives also a rough interpretation of the ball charge efficiency.
- Volume load: it calculates the filling degree of each compartment using the H/D method
- Cement mill (2 compartments) power: it calculates the theoretical absorbed power of the classical cement mill
- Cement mill (3 compartments) power: it calculates the theoretical absorbed power of the cement mill with 3 chambers (mainly in open circuit)
- Monochamber mill power: it calculates the theoretical absorbed power of the monochamber mill (cement mill, raw mill with outlet diaphragm, airswept mill)
- Raw mill power: it calculates the theoretical absorbed power of the raw mill with a drying chamber and a grinding chamber
- Birotator (central discharge) mill power: it calculates the theoretical absorbed power of the mill and the drying chamber
- Ball charge make-up: this calculator gives the percentage for each diameter of balls when there is a make-up schedule
- Tromp Curve: it calculates the separator efficiency with the traditional Tromp curve
- RRB Curve: the particle size distribution of the cement samples
- Drying capacities: this calculator gives a good idea of the present and expected drying capacities of a raw mill
- Heat balance (water): this calculator gives the amount of water required to get the right cement outlet temperature
All these calculators are reliable, but "Drying capacities" and "Heat balance" calculators require a deeper analysis to be confirmed.
Welcome to The Cement Grinding Office, a new concept to support engineers and technicians working every day with a ball mill
Cement mill technology
Test your knowledge!
Test your knowledge!
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The Cement Grinding Office
Technical forms:
All the forms are divided in 4 parts: Technical data, Production data, Visit of the mill and Granulometries results.
If you fill out this form and send it us, you will receive AN INITIAL EVALUATION OF YOUR GRINDING PLANT AND THIS FOR FREE. The evaluation will consist of an one-page report. If you are interested in a full study or a visit of the installation, please contact us for details.
The forms are the following:
- Monochamber: some cement mills, especially with a pregrinding system or with 100% slag composition can be monochamber
- 2chambers: classical 2 compartments cement mill
- 3chambers: older mill configuration mainly in open circuit
- Birotatoraw: traditional bi-rotator mill with central discharge
- Rawmono: This form concerns the air-swept mill or the monochamber raw mill
All the forms are divided in 4 parts: Technical data, Production data, Visit of the mill and Granulometries results.
If you fill out this form and send it us, you will receive AN INITIAL EVALUATION OF YOUR GRINDING PLANT AND THIS FOR FREE. The evaluation will consist of an one-page report. If you are interested in a full study or a visit of the installation, please contact us for details.
The forms are the following:
- Monochamber: some cement mills, especially with a pregrinding system or with 100% slag composition can be monochamber
- 2chambers: classical 2 compartments cement mill
- 3chambers: older mill configuration mainly in open circuit
- Birotatoraw: traditional bi-rotator mill with central discharge
- Rawmono: This form concerns the air-swept mill or the monochamber raw mill
Cement technology page:
You will find some interesting subjects concerning the grinding technology of the cement.
This page will be updated regularly.
You will find some interesting subjects concerning the grinding technology of the cement.
This page will be updated regularly.
Important notice: This site was optimized on Windows 7 for Firefox 8 and IE 8 (resolution: 1280x1024). It was also tested for
Chrome, Opera, Safari and on Windows XP and Linux Ubuntu. It gives some appearance problems with IE 6 and Google Chrome for the tools calculators. We apologize for any inconvenience.
Chrome, Opera, Safari and on Windows XP and Linux Ubuntu. It gives some appearance problems with IE 6 and Google Chrome for the tools calculators. We apologize for any inconvenience.
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