Micro-pelletizing can be carried out in a pin mixer, or in a pin mixer/disc pelletizer (pan granulator) combination. Pin mixers alone often provide efficient results when full-scale pelletizing is not necessary, or when only smaller pellets or conditioning is needed. To begin, the pin mixer …
Coal, a combustible, sedimentary rock, has been used for centuries as a reliable energy source. Despite growing renewable energy sources, coal is still the backbone of the world’s energy grid, providing the electricity we need to turn on lights, heat our homes, and cook our …
This week’s photo shows the interior of a rotary kiln, as a technician works to remove build-up on the refractory. Build-up can sometimes occur in an over-temperature condition which causes product to melt and become sticky. A primary design requirement with all rotary kilns is …
Gypsum, or hydrous calcium sulfate, is a crucial mineral in the production of everything from wallboard to cement and even many consumer products, surrounding us throughout our daily lives. United States gypsum production was at an estimated 20 million metric tons (Mt) of crude gypsum …
A sieve analysis measures particle size distribution, and more specifically, what percentage of on-size, over-size and under-size pellets are produced from the agglomeration process. The analysis is an important part of agglomerate process and product development, as it confirms whether or not the agglomeration process …
As the world continues to move away from fossil fuels, pyrolysis is becoming an increasingly important tool, helping to create a more circular economy by opening up opportunities in the production of alternative fuels from a variety of wastes. The rotary pyrolysis kiln is chosen …
FEECO offers a selection of bucket styles for both centrifugal and continuous bucket elevators, to accommodate the demands of varying materials. We offer two centrifugal bucket styles: style AA and style AC. Both options feature a reinforced lip around the leading edge to avoid distortion …
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, …
In the copper production via smelting process, pugmill mixers are used for mixing and conditioning. Pug mills are highly proficient at combining both solid and liquid feeds into a homogenous mixture, and are therefore an ideal mixing device in the smelting process. Numerous components are …
This week’s photo highlights a pan pelletizer’s binder spray system. The spray system, or nozzles, are used to disperse binder. Non-pressure agglomeration technologies, such as pelletizing on a pan pelletizer (also known as a pan granulator or disc pelletizer), often requires the assistance of a …