EVERYTHING YOU NEED TO KNOW ABOUT HEAT TRANSFER IN CEMENT KILN

EVERYTHING YOU NEED TO KNOW ABOUT HEAT TRANSFER IN CEMENT KILN   In this chapter a review of the fundamental concepts of heat transfer is presented. The second law of thermodynamics  states  that  heat  always flows from a point of higher temperature to the point of lower temperature. Heat can be transferred by radiation, which […]

Continue reading

Consequences & Causes of roller misalignment

Consequences & Causes of roller misalignment          

Continue reading

EVERYTHING YOU NEED TO KNOW ABOUT CEMENT KILN FLAME

EVERYTHING YOU NEED TO KNOW ABOUT CEMENT KILN FLAME     To an untrained eye, all flames in the burning zone of a rotary kiln appear more or less the same. As shown in Fig. 6.1, there is a short plume of air and fuel emanating from the nozzle, then at the end of the […]

Continue reading

Everything you need to know about combustion in Cement Kiln

Everything you need to know about combustion in Cement Kiln     Before entering into a detailed discussion on the combustion conditions in the kiln, it is appropriate  to review some fundamental  Jaws related to gases and combustion. Knowledge of these laws are essential in order for any kiln operator to understand the duties involved […]

Continue reading

Every Thing you need to know about Cement Kiln Fuels

Every Thing you need to know about Cement Kiln Fuels     Fuels used in burning a rotary kiln are classified into three groups: solid, liquid, and gaseous fuels. In many kilns a combination of two different fuels are used.   SOLID FUELS Solid fuels used in rotary kilns are generally of the following types […]

Continue reading

8 Rotary Kiln Typical Problems

8 Rotary Kiln Typical Problems   1) Excessive  dust loss 2) Sub-optimum chain system 3) Ring Formation 4) Short refractory life 5) Unstable coating 6) Kiln shell deformed (trumpet) 7) Short life of outlet segments 8) Outlet & inlet seal not tight

Continue reading

Kiln Refractory Requirement , properties & Factors affect wear

Kiln Refractory Requirement , properties & Factors affect wear   Because of the high temperatures existing inside a kiln during the clinker manufacturing process, it is necessary to protect the steel shell of the kiln with a refractory lining. If this protection were not provided, the shell would disintegrate within a few hours. A refractory […]

Continue reading

kiln vibrations

kiln vibrations Reasons & Solutions     Reasons :  There are a number of plausible mechanisms to explain kiln vibrations:   The transfer of load from one pinion tooth to the following tooth may have an impact component. Kiln drive vibration is sustained by the abrupt transfer of load from the engaged pinion tooth to […]

Continue reading

Catastrophic Problems of Kiln and the Recommended solution

Catastrophic Problems of Kiln and the Recommended solution     by FLS  Kiln Axis – Results Load on bearings and tyres Stiffness Matrix Tyre Migration Bending stresses in kiln shell     Kiln crank     Kiln shell profile analysis   Axial balance of the kiln The ideal situation   Axial balance present situation   […]

Continue reading

Types of Rotary Kilns

Types of Rotary Kilns   Generally speaking, the clinker manufacturing processes used in rotary kilns are classified into: -Wet-Process  Kilns -Semidry Kilns Dry Kilns -Preheater  Kilns -Precalciner  Kilns Each of these types are discussed here.   WET PROCESS Into this group fall all processes in which the kiln feed enters the kiln in the form […]

Continue reading