Fields of application:-
All applications where you wish to cut, clip, split or crush, grinding stock/bulk material.
This type of comminution may be either selective or simple and allowance for selected particle sizes and or collochemical or mechanostructural properties is largely feasible. Important improvements of the final product quality can thereby be achieved in all applications where a combination of cutting clipping , splitting, crushing scarpping, grinding, rubbing and pressure is to be realized both in selective as well as comminution or grinding in all application where free running stock/bulk material is to undergo precision grinding.
In all applications where material is to be admitted to be admitted to a specific programmable rational comminution with the possible of achieving cutting, clipping, splitting crushing, scraping, grinding, rubbing and pressure effects simply or by a combination of the different paramers in all application where an enargy saving prossesing of the glinding stock. (Bulk Material is Endeavored)
Comminution by fluted rolls is by for the most economical method as far as energy is concerned.
Function:-
The function of fluted rolls depends essentially on the following influences :
A) Roll parameters :
- Roll material
- Roll diamerter
- Surface profile (number and angle of flutes, flutemomentum
and base flute face)
- Flute edge-sharpness at the profile surface.
b) Roller mill and /or roll unit parameters.
- Nip
- Roll Perimeter Speed
- Roll Differential
- Flute position
- Rate of Feed
c) Mechanostructural properties of the grinding stock/bulk material
- Kind of grain / grinding stock
- Collochemical structures
- Granulation spectrum
- Combination of matter
- Moisture
- Resistance to cutting, clipping, splitting, crushing scrapping , grinding, rubbing and pressure, as well as
- Susceptibility to fragmentation.
ADVANTAGE
Through we cannot yet produce detailed scientific evidence to the fact, nonetheless, it is you who will benefit by the advantages offered by the application of our special fluted roll qualities. The advantages of a certain product of given quality cannot be proved otherwise than by superior efficiency, and superior efficiency in this meaning reflects a longer life or the flution inspiteger life of the fluting inspite of a potentially higher initial price. It also stands for an extended sharpness that keeps the relevant energy consumption extremely low and a higher yield and or better final product quality together with a greater throughput.
In addition there is the saving made by reduction of the costs involved with frequent roll changing (and the associated interruption of production) and the inherent saving in refluting costs. The application of our special fluted roll qualities enhances the effectiveness of your comminution systems in relation to the final product at, or rather inspite of, lower roll costs. The more intensively we have occupied ourselves with the aforegoing correlations, the clearer it has become to us that much confusion and only few facts are being spread.
As regards the efficiency of a prospective replacement of the clear chill cast smooth rolls by self-surfacing indefinite chill smooth rolls, a rough estimate shows that the money invested in the self-sufacing smooth rolls will have paid in less than two years. Maintenance also is a point to be made. With a properly functioning grain dressing machine (sand and grit trap), no reworking of the roll faces is necessary even for the head reductions. And, compared with classical smooth rolls, it should be noted that no steel scrapers may be used as they might prejudice the self-surfacing effect. If the rolls must be cleaned in the case of granular grinding stock, this should be done with a brush that is entirely free from any steel wire. When ordering rolls, it is of importance to indicate which passage the rolls are intended for and how many breaks scratches and comminution passage the system has. This information is necessary for determining the individual roll hardnesses. |