At existing, the majority of the precalciner kilns are applied with three-duct burner or dour-duct burner, whilst the shape of flame is adjustable with the sensible match amongst the internal-flow wind and external-flow wind. If men and women have to shorten the flame, they will centralize the high-temperature area, or when quality of coal is comparatively poor, the burning pace is relatively slow, individuals can effectively enlarge the internal-flow wind yet lessen the external-flow wind. If good quality of coal is nice or the kiln coating is just too thin, the floor temperature of simplified kiln is relatively higher, in this situation individuals desire to elongate the flame, and so they must enlarge the external-flow wind but decrease the internal-flow wind. Nonetheless, when external-flow wind is simply too massive, it will effortlessly lead to way too massive flame and too extended floating kiln coating, and it will effortlessly sort the circle, the temperature of rotary kiln stop will be way too large. And when the internal-flow wind is just too huge, it'll very easily trigger stubby and divergent flame, that can outcome in the situation that kiln coating is vulnerable to erotic, what's worse, burning by best fireplace is straightforward to provide thick granule of clinker and yellow-core clinker.

In the real apply, if people discover which the burning-zone material is sticky, the began peak is comparatively high, the rotation of materials is not flexible, occasionally, it'll have pie-shaped materials, most of these show which the temperature throughout the rotary kiln is simply too high. At this moment, people really should effectively reduce the coal sum in kiln head, and simultaneously, individuals have to properly reduce the internal-flow wind although enhance the external-flow wind in order to elongate the flame and relieve way too substantial temperature in rotary kilns.

If people learn the started off top of materials within the ball mill is too very low, and it'll slide down to the surface of refractory brick, the divergence of substance has no stickiness, granule is too great and modest, clinker is higher, most of these indicate the temperature of burning zone is simply too reduced, men and women ought to improve the coal quantity in kiln head, and meanwhile, they really should enhance the internal-flow wind, and correspondingly reduce the external-flow wind, to ensure flame may be shorten, burning zone is relatively centralized. And people can boost the temperature of burning zone, that will direct for the normal state of clinker granules.

If men and women find out the partial temperature of burning zone and rotary kilns is too substantial or big amount of kiln coating is falling, which confirm which the burned temperature isn't steady, flame form is not great, divergent flame will erode kiln coating and fire bricks. At the moment, individuals have to lessen, even close the internal-flow wind, and reduce the coal amount in kiln head as well as increase the external-flow wind in order to extend the flame or shift the coal burner, alter the fire placement and re-hanging the kiln coating, in such way, the burned circumstance can return to normal.

All in all, people ought to typically examine and alter the flame temperature and form throughout the china drying machinery in order to fulfill the requirement of the genuine manufacturing and extend the service lifestyle of rotary kilns.