accretion formation in rotary kiln

of the kiln for several days Accretion build up or ring formation in the kiln is normally caused by the deposition of low melting complex compounds on the refractory wall of the rotary kiln which gradually increases in thickness and takes shape of a circular ring This narrows the kiln diameter which ends up hindering material

Optimization problem discussed here for a coalbased rotary kiln to find the optimal operating conditions keeping desired targets like quality and accretion formation temperatures of kiln within

Rotary kiln cement rotary kiln and sponge iron rotary kiln is a rotating cylindrical vessel which is used for drying calcination and sintering in a continuous process with the use of hot hot gases may be generated in an external furnace or by a flame inside the kilnA study on the accretion formation in dri kilns and

Aug 11 2014 · Accretion build up or ring formation in the kiln is normally caused by the deposition of low melting complex compounds on the refractory wall of the rotary kiln which gradually increases in thickness and takes shape of a circular ring

Jan 11 2016 · To improve the performance of rotary kiln and maintaining the quality of sponge iron there is a need to reduce the accretion formation in the kiln However it is difficult to control accretion formation in the kiln due to the erratic nature of the reduction process dynamics

Optimization problem discussed here for a coalbased rotary kiln to find the optimal operating conditions keeping desired targets like quality and accretion formation temperatures of kiln within

The temperature profiles of the gas and charge in a coalfired rotary sponge iron kiln affect both the iron ore reduction process and accretion formation The temperature profile of charge is estimated from the eleven thermocouples TC1TC11 placed along the 80 m length of the kiln The quality prediction models are heavily dependent upon the accuracy of the measurement of TC10

Accretion formation in rotary kiln Material inside the kiln tumbles and slides and a thin layer of dust invariably forms on the surface of the refractory lining Some zones of the kiln may be specifically prone to particle accumulation and the combined effect of thermal and flow conditions results in the formation of cylindrical deposits or

Rotary Kiln Cement Rotary Kiln and Sponge Iron Rotary Kiln Rotary kiln is a rotating cylindrical vessel which is used for drying calcination and sintering in a continuous process with the use of hot gases The hot gases may be generated in an external furnace or by a flame inside the kiln A study on the accretion formation in DRI kilns and

there is a tendency of accretion formation in the temperature range of 900 oC to 1100 oC inside the Rotary kiln refractory lining Dash et al Accretion is the catastrophic accumulation of sintered particles of solid bed which form rings at places along the length of the kilns This is a regular phenomenon in the DRI rotary kiln It narrows