The main advantages of applying ceramic abrasive body are as follows:
(1) power saving: reduce the loading capacity of grinding body of the mill by 20%, reduce the current of the main machine by more than 20%, and save electricity by more than 15% for tons of cement;
(2) quality improvement: improve the performance of cement products, and the particle composition is more reasonable. The content of 3-32 m2 particles increases by more than 2%, the spherical particles increase, the water consumption for standard consistency decreases by 1%~2%, and the compatibility between cement products and concrete additives is improved.
(3) cooling and noise reduction: the internal temperature of the mill is reduced by more than 15℃, and the noise of the mill is reduced by more than 15dB;
(4) wear resistance: the ball consumption of ceramic ball is generally 50% of the steel ball, such as the production of 42.5 ordinary Portland cement, high chromium steel ball ball consumption of 30~40g/t, and the microcrystalline high-strength alumina ball is ≤15g/t;
(5) environmental protection: reducing heavy metal pollution is conducive to the realization of the national standard for the content of water-soluble hexavalent chromium in cement products (≤10mg/kg).
What are the characteristics of the main structural components of the commonly used alumina ceramic balls?
The main chemical composition of alumina ceramic ball is Al2O3, accounting for 92%, in addition, there are 8% modified toughening materials such as zirconia.Its molding process is mainly divided into two categories: pressing molding and rolling molding, all kinds of specifications, the diameter of less than 20mm using rolling molding, diameter of more than 20mm using pressing molding.
What are the physical properties of alumina ceramic ball?
Mohs hardness of alumina ceramic ball is 9.0, rockwell hardness is 80~83.The density was 3.6g/cm3, and the bulk density was 2.2t/m3.It is a ceramic ball product specially developed for dry cement grinding. By adding zirconia to toughen the ceramic ball, the ceramic ball is not only of high strength, but also of good toughness.
Which technological process is ceramic ball suitable for cement grinding system?
Ceramic ball is suitable for various technological processes of dry cement final grinding ball mill system, especially the combined grinding system of roller mill and ball mill. It is required that the average particle size of grinding material is less than 1mm.Other cement powder grinding open or closed process of the ball mill grinding bin (end bin), can use ceramic ball instead of steel ball (steel forging).
