Industrial process for the production of a clinker with a high content of belite

摘要

The present invention relates to a process for the production of a clinker with a high content of belite, said process comprising the following steps:
(i) introducing a raw meal into a calcination chamber of a cement plant kiln;(ii) calcining the raw meal at a temperature of from 1150° C. to 1375° C.;(iii) measuring the weight per liter of the product of step (ii) and eliminating the product having a weight per liter strictly less than 650 g/liter;(iv) measuring the quantity of SO3 in the product of step (ii) and eliminating the product having a ratio of quantity of SO3 of the decarbonated raw meal/quantity of SO3 in the product of step (ii) less than or equal to 0.75 and greater than or equal to 1.2;(v) measuring the quantity of free lime (CaOl) in the product of step (ii) and eliminating the product having a quantity of free lime strictly greater than 1.5%, percentage by mass of free lime in the product of step (ii).

主权项

1. A process for producing a clinker comprising 40 to 75% of belite, % by mass relative to the total mass of clinker, said process comprising:
(i) introducing a raw meal into a calcination chamber of a cement plant kiln; (ii) calcining the raw meal at a temperature of from 1150° C. to 1375° C.; (iii) measuring a weight per liter of the product of step (ii) and eliminating the product having a weight per liter strictly less than 650 g/liter; (iv) measuring a quantity of SO3 in the product of step (ii) and eliminating the product having a ratio of quantity of SO3 of the decarbonated raw meal/quantity of SO3 in the product of step (ii) less than or equal to 0.75 and greater than or equal to 1.2; (v) measuring a quantity of free lime (CaOl) in the product of step (ii) and eliminating the product having a quantity of free lime strictly greater than 1.5%, percentage by mass of free lime in the product of step (ii).