Architectural design knowledge: Portland cement made production and packaging technology

[students] cement Portland cement production problems made and packaging process?

[answer] out of cement clinker kiln after cooling by adding proper amount of gypsum (control of cement in SO ≤ 3.5%), in the mill grinding, made of Portland cement. Cement grinding fineness is larger, influence on cement quality improving fineness, can improve the strength of cement, but the corresponding power consumption also increases. The fineness of the general control in 0.08mm square hole sieve residue of not more than 10%, or the specific surface area of around 3000cm/g. Cement grinding process of large dust, therefore in the import and export of equipment, conveying and packaging shall be installed dust collecting equipment, such as sedimentation chamber, cyclone dust collector, bag dust collector etc.. Some advanced factories are equipped with electric dust collector in China also use KO containing high clay or potassium feldspar instead of clay raw material, in the calcination process of oxide volatilization to the dust, the dust collection with high KO, can be used as fertilizer use. The cement used in paper bags, but in recent years has been to bulk ship, bulk vehicle delivery, improving the loading efficiency, reduce the cost.

The above are according to the arrangement of meeting students problems in practical work and become, for reference, if there is a problem, please timely communication.