redspot causes in rotary kiln in cement factory

Home/redspot causes in rotary kiln in cement factory

redspot causes in rotary kiln in cement factory

A Neuro-Fuzzy Controller for Rotary Cement Kilns

(The rotary kiln is an essential and important component of a cement manufacturing factory. It is made of a thick steel cylinder of diameter anything from 3 meters to 8 meters, lined with refractory materials, mounted on roller bearings and capable of rotating about its axis at a specified speed. It may of any length from 30 meters to 200 meters.

Fire and Explosion Hazards in Cement Manufacturing ...

The rotary kiln discharges the red-hot clinker under the intense flame into a clinker cooler. The clinker cooler recovers heat from the clinker and returns the heat to the pyroprocessing system thus reducing fuel demand and cooling the clinker to a tem- perature conducive for handling in subsequent steps. Finish Grinding The final process of cement making is called finish grinding.

IDENTIFICATION OF REFRACTORY MATERIAL FAILURES IN …

atmosphere and process conditions in Rotary Kiln. Any of the said parameters if found beyond permissible limits may cause damage to the coating and increase thermal and chemical stresses on the kiln refractory. The cement industry is one of the most energy-intensive industries, therefore the use of alternative fuels has a long tradition.

Red Spot On Rotary Cement Kiln- PONOLA Mining machine ...

kilns based on the real behavior of a cement kiln. Initially, a summary of the cement production process is discussed. Then, the issues and variables to be defined and controlled in a rotary kiln are pointed out. An overview of the proposed neural-fuzzy controller (NFC) for the rotary cement kiln …

Basic Refractories for Cement Rotary Kiln

atmosphere and process conditions in Rotary Kiln. Any of the said parameters if found beyond permissible limits may cause damage to the coating and increase thermal and chemical stresses on the kiln refractory. The cement industry is one of the most energy-intensive industries, therefore the use of alternative fuels has a long tradition.

11.6 Portland Cement Manufacturing

Wet process kilns. The original rotary cement kilns were called 'wet process' kilns. In their basic form they were relatively simple compared with modern developments. The raw meal was supplied at ambient temperature in the form of a slurry. A wet process kiln may be up to 200m long and 6m in diameter.

How To Strip Excessive Coating In Cement Kiln

Degradation of refractories in cement rotary kilns fired with waste fuels. Report no.61, Vol.5, pp. 64-72, Refratechnik, Gottingen. Caballero, A., Serena, S., Sainz, M.A. (2009). The system Clinker-MgO-CaZrO 3 and its application to the corrosion behavior of CaZrO 3 /MgO refractory matrix by clinker. Journal of

Cement Rotary Kiln Design | Key Factors in Rotary Kiln ...

figure 1, a schematic of the kiln with its cyclone pre-heater is shown. Figure 1: Rotary Cement kiln Process. In this paper we will use a black box identification procedure for modelling the Saveh white cement kiln. It is a 65 m long, 4.7 m diameter kiln with 4 stage double string pre-heater and water immersion cooler.

Counteracting ring formation in rotary kilns | Journal of ...

On average 0.2 – 0.3 tonnes of coal are consumed in the kiln per kilogram of clinker cement production. As such coal storage during cement manufacturing is an important component to consider in hazard analysis. Among the various causes of coal fires, spontaneous combustion during storage results in a large number of losses.

Monitoring the condition and performance of cement kilns ...

The inner diameter of industrial rotary kiln ranges from 1.0 to 4.5 meters, and the length-diameter ratio is generally 12:1 ~ 20:1. Number of Tyres. A cement rotary kiln usually has 2~4 tyres to support the kiln shell. The exact number of tyres is related to the diameter and the length-diameter ratio of the rotary kiln.

Thermo-elastic behavior study of rotary kilns for cement ...

Oct 24, 2012· Avoiding the formation of rings in rotary kilns is an issue of primary concern to the cement production industry. We developed a numerical combustion model that revealed that in our case study rings are typically formed in zones of maximal radiative heat transfer. This local overheating causes an overproduction of the liquid phase of the granular material, which tends to stick to the …

coating stability in rotary cement kiln

The kiln rotation in red spots presence can permanently damage the metal structure. The main purpose of this research is to find out distortions due to the ovality phenomena using a numerical method (finite element stresses analysis) by Patran/Nastran softwares and to compare the results with measurements obtained in Moroccan cement plant . Fig. 2

Basic Refractories for Cement Rotary Kiln

The kiln rotation in red spots presence can permanently damage the metal structure. The main purpose of this research is to find out distortions due to the ovality phenomena using a numerical method (finite element stresses analysis) by Patran/Nastran softwares and to compare the results with measurements obtained in Moroccan cement plant . Fig. 2

Cement and Lime-1.pdf - Manufacture of Portland Cement ...

Nov 10, 2020· The general length of cement rotary kiln is about 70 meters, diameter is about 4-6 meters. With such a large construction area, firebrick installation will be more efficient than refractory castable. Take a newly built cement rotary kiln with a capacity of 5000 tons per day as an example. The installation time using firebrick is about 10 days.

Causes of damage to cement rotary kiln and ... - LCDRI CN

Aug 13, 2019· The damage of the refractory lining of the rotary kiln often affects the continuity of production. It is one of the common equipment accidents. The causes of the defects include design structure, refractory quality, masonry quality and operation and maintenance.