Conical mill

Author:wikipedia   Post Date:2009-6-25

A conical mill (or conical screen mill) is a machine used to reduce the size of material in a uniform manner. It is an alternative to the hammermill or other forms of grinding mills.

The conical mill operates by having the product being fed into the mill by gravity or vacuum. A rotating impeller forces the material outward to a conical screen surface, where it is sized and passed through the openings in the screen. Once finished, the product simply drops through the milling chamber to a receptacle underneath.

Conical mills come in a variety of sizes from tabletop lab models to full-size high-capacity machines for use in processing large quantities of material, and the impeller and screen can be customized for each individual use. The machines can be used not only to reduce the size of particles, but also for deagglomeration, sieving, dispersion, and mixing.

The applications for a conical mill are varied, but trend towards use in the food, cosmetic, chemical, and pharmaceutical industries:

Reclaiming broken pharmaceutical tablets by grinding them back into powder for re-forming.
Sizing wet granulated particles before drying, and sizing dry granulated particles after they've dried before tabletting.
Delumping dry detergent during production
Dispersing pearl into blush and face powder
Deagglomerating dried fruits such as raisins or cranberries.
Creating breadcrumbs from scraps
The conical mill has some marked advantages over the hammermill, especially in the pharmaceutical industry: low noise, heat and dust, a more uniform particle size, flexibility in design, and higher capacity.

The concept of the conical mill was created in 1976 by the engineers of Quadro Engineering, who remain the foremost manufacturer of conical mills.

·Vertical roller mill ·grinding mill ·Wiley mill ·Pellet mill ·Colloid mill ·Millstone ·Hammermill ·Stamp mill ·Conical mill ·Herb grinder ·Ball mill

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