In the food industry, Corn Starch is used either as a food product itself or as an additive for thickening, preservation and quality enhancer in baked foods, confectioneries, pastas, soups and sauces, and mayonnaises. Starch is a polysaccharide of glucose made of two types of α-d-glucan chains, amylose, and amylopectin.
The making of corn starch is comprised of the steeping of ground corn in a mixture of ammonium hydroxide and water. After a set period of time, the material will be at the required pH level and the material will be dewatered and dried. This dried material will be milled to various end particle sizes dependent upon specific use/application.
Hosokawa’s technology and roll is in the size reduction of the dried material. The desired end sizes range from coarse grinds of less than 80 mesh to finer grinds of top sizes below 200 mesh. There are even requested end particle sizes of less than 35 µm.
An additional application is the Modification of Starch to achieve a homogeneous product with exactly the specified moisture content. In addition, another end result is to produce an agglomerate with optimal flow properties, minimal dust, and optimal dispersion characteristics.
To achieve this modification, the equipment would include the Hosokawa continuous agglomeration system, comprising a Flexomix mixer/agglomerator and a fluid bed dryer/cooler.
Corn Starch is an organic material, and therefore has a potential for explosion. As with all organic materials, the system must be designed to safely handle the potential for a dust explosion. System protection can be obtained by incorporating any of the following basic design possibilities:
- Designing the entire system for over-pressure and containment of the explosion as shown in this picture
- Venting of the system to safely relieve the over-pressure
- Operation under an inert atmosphere to remove the explosion potential
- Utilizing a suppression system to quench the explosion before it propagates
Contact us today to talk with an applications engineer, to learn more about how Hosokawa’s equipment can help your process and improve your product quality.