Archive for the ‘Rotary Kiln Design’ Category

Rotary Kiln Refractory: Preventative Care

Rotary Kiln Refractory: Castable

Protecting the life of your refractory is crucial not only to running at high efficiency, but also to maintaining your rotary kiln. Once your rotary kiln refractory is installed and in use, it is important to take the extra steps to protect it. A well-installed, high quality refractory can have a lifespan of many years. ...

Rotary Kiln Refractory: The Working Layer vs. The Insulating Layer

Rotary Kiln Refractory: Castable

After a material is chosen for your rotary kiln refractory, you must decide the desired heat loss. When efficiency is of concern, or very high temperatures are involved, often it is desirable to use multiple layers of refractory: a “working” layer, and an insulating layer. The working layer is what is in direct contact with ...

Rotary Kiln Refractory: Castable vs. Brick

Refractory is what protects the shell of a direct rotary kiln from the heat within, so as you can imagine, choosing a quality refractory that is right for your material is extremely important in the design of a rotary kiln. Choosing a refractory that will fail quickly can have severe effects on the life of ...

Rotary Kiln Design: Maintaining Your Rotary Drum

Rotary Kiln Design

Rotary drums are a valuable investment with the potential to have a long productive life with proper maintenance. While protecting this investment is not hard, it does take know-how, and routine maintenance. Luckily, this routine maintenance and knowledge go a long way in recognizing potential problems, and spotting when a rotary drum is in need ...

Rotary Kiln Design: Seals

Rotary Kiln Design

Holding the appropriate temperature within a rotary kiln is what allows the desired chemical reaction to occur. Sustaining that temperature, however, can be difficult if the right seal is not chosen. Almost all rotary kilns run at a negative pressure, meaning gas doesn’t leak out, but rather, air leaks in. Because rotary kilns are always ...

Rotary Kiln Design: Dams

Rotary Kiln Design

For various reasons, it is often desirable to increase retention time in the rotary kiln. In order to do this, the loading, or how much material is in the rotary kiln at one time, needs to be increased. This is done by adding what is called a "dam" to the interior of the rotary kiln. ...

Rotary Kiln Design: Bed Disturbers

Rotary Kiln Design

Indirect fired rotary kilns are an effective method of processing materials, but sometimes it is necessary to take additional measures to ensure that the rotary kiln is processing efficiently. Indirect fired rotary kilns create heat transfer by conduction through the shell of the rotary kiln, rather than by means of a hot gas stream. Because ...