The high temperature of fireproof material erodes cement kiln mechanism

The high temperature of cement kiln interior erodes mechanism is to point to in cement production process, high temperature environment and chemical reaction bring about cement kiln interior of fireproof material wear away and erode a phenomenon. It is complex that this kind erodes mechanism, involve a variety of elements and chemical reaction, basically include the following fields:
High temperature action: Temperature of cement kiln interior arrives in 1000 ° C normally between 2000 ° C, environment of this kind of high temperature constituted a challenge to fireproof material. Expose the structure that can bring about material below high temperature and function for a long time to produce change.
Heat expands and cold shrink: Temperature gradient exists in cement kiln, fireproof material is heating and heat build-up of the hair in cooling process expands and cold shrink, the craze that this may bring about material and wear away.
Chemistry erodes: Oxide, alkalescent compound and other caustic material are contained in the flue gas inside cement kiln. These material and fireproof material produce chemical reaction, the likelihood is caused corrode and erode.
Wear away: Cement raw material is in inside cement kiln in the course that passes canister of converter coming back, with fireproof material contact, bring about mechanical wear. In addition, kiln interior has the flow of makings shedding, also meet those who cause fireproof material wear away.
Micromechanism changes: High temperature and the micromechanism that chemical environment may bring about fireproof material interior produce change, those who be like mineral photograph those who change structure of He Jing system destroy.
To lengthen cement kiln the service life of fireproof material, need chooses right fireproof stuff, undertake install and be maintenanced goodly, and optimize manufacturing process, in order to reduce the exposure of fireproof material time and high temperature area. In addition, study ceaselessly and develop new-style fireproof material, fighting high temperature aggressivity in order to raise its also can be an important way.