What Processes Are Rotary Kilns Used For?

When looking for a rotary kiln for sale, it’s important to understand what your new kiln could do for you.  In a broad sense, a kiln is intended to bring about chemical or physical changes through heat, but that function can be broken up into several discrete possible processes.

In this article, we’ll briefly outline each of the roles a rotary kiln can serve.

The Six Main Processes A Kiln Can Accomplish

  1. Calcination

Calcination is the process of heating a material to a point that chemical separation occurs, such as when creating inorganic materials.  For example, calcium carbonate can be heated to create calcium oxide + carbon dioxide.  This same process can also be used to remove bound moisture from a substance.

  1. Organic Combustion

Kilns are also extremely effective at burning organic waste out of a material or product, leaving behind nothing but ash.  For example, rotary kilns are frequently deployed in waste treatment plants to reduce the volume to materials needed to be processed.

  1. Thermal Desorption

Thermal desorption is another alternative for removing organic materials from other materials, but by merely causing separation rather than outright combustion.  This is useful when there’s a concern about combustion causing the release of harmful byproducts into the atmosphere, or about the material in question becoming volatile if ignited.

  1. Sintering

Sintering is the process of heating up a material to just below its melting point, thus increasing the internal strength of the product.  This is common in many forms of metalwork.

  1. Heat Setting

Heat setting is useful when you need to bind two materials together which normally would be difficult to bond, particularly if one is more heat-resistant than the other.  Heat-setting processes are used in creating Teflon coatings, for example.  It’s also an excellent way to permanently bond paints and other colorings onto various materials.

  1. Reduction Roasting

Finally, a rotary kiln can be utilized to remove oxygen from materials, such as ores, through the introduction of carbon monoxide into the environment.  This encourages them to bind together and be released from the material.

We Have a Wide Inventory of Kilns on Sale to Suit All Your High-Tech Heating Needs

Kiln Technology Company has over twenty years’ experience in buying, selling, and servicing kilns across Texas, and across the country.  We offer highly competitive rates and industry-leading warranty services.  If you’re looking for a kiln for sale, or need service advice, contact us!