Many factors are taken into consideration when designing a rotary dryer that can both efficiently and effectively dry a material. Factors such as bulk density, specific heat, and flowability, among others, all interact to influence how the material will behave in the dryer, and subsequently, Continue reading →
This week’s highlighted resource is a Slideshare presentation on drying limestone. This Slideshare presentation provides an overview on the essential role that rotary dryers play in the limestone industry, from drying limestone ore to soil amendments. Click here to view the Slideshare presentation. Be sure Continue reading →
Rotary kilns, an advanced type of thermal processing equipment, are used to cause a chemical reaction or physical change in a solid material through the use of high temperatures. They are frequently utilized to carry out the following processes: Calcination– the process of heating a material Continue reading →
In regards to rotary dryer use, retention time is the duration of time that a material must remain in the dryer to achieve the desired end-product characteristics. Retention time is an important consideration to the dryer design, and is defined by looking at the specific Continue reading →
Rotary coolers are often an integral part of a thermal process, cooling material as it exits a rotary kiln or rotary dryer, to a manageable temperature for the next step in the process. There are two main types of rotary coolers: a convective rotary cooler, Continue reading →
The performance of a rotary dryer is vital to maximizing process efficiency and capacity in any industrial process setting. While a well-designed dryer will yield few problems of its own, various factors can cause the performance of the overall drying operation to degrade. Process audits Continue reading →
Retention time, also called residence time, is the amount of time that the material must be processed in the rotary dryer in order to achieve the desired results. The retention time required for a given application is determined through balancing the necessary process parameters – Continue reading →
This week’s highlighted resource is a Slideshare presentation on rotary dryers in the frac sand industry. This Slideshare presentation provides an overview on how rotary dryers are used in the frac sand industry, including why rotary dryers are chosen over fluid bed dryers and common Continue reading →
Activated carbon, sometimes called activated charcoal, is a unique adsorbent prized for its extremely porous structure that allows it to effectively capture and hold materials. Widely used throughout a number of industries to remove undesirable components from liquids or gases, activated carbon can be applied Continue reading →
Bed disturbers are used in both direct and indirect-fired rotary kilns to promote uniform heating of the material. The bed of material should roll, not slide, throughout the kiln in order to expose fresh material to the process. This rolling action allows for even heat Continue reading →
