Classifying – separating – and assorting solids – Sifting – Drum sifters
Patent
1979-09-24
1983-11-29
Chiesa, Richard L.
Classifying, separating, and assorting solids
Sifting
Drum sifters
209411, 209413, 99574, 209407, B07B 120
Patent
active
044179782
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The need of good screening in the processing of cereals represents a primary fact for obtaining final product and by-product. Cereals, such as wheat, rye, corn and others, require a processing of multiple sequential phases that lead to high purity final products, one seeking to obtain a maximum of flour extraction and a minimum of sub-products or by-products, namely, bran.
To attain such results, very complex systems and processes are necessary, with the use of several types of machines each performing a specific operation with a consequent need of several phases for cereals processing. A general scheme, shown by FIG. 12, depicts one of the possible phases to which the cereal to be transformed can be subject. Initially there are cylinders (A) through which the product enters and where the initial milling of the raw product is carried out. After the product is ground, it is carried by pneumatic raising assembly (B) which introduces said product into screens (C). These screens are composed of a series of several-mesh nylon screens through which the products sub-divide and reach a new phase of processing. Such new phase begins in another cylinder going or not through intermediate blenders (D) the purpose of which is to prepare the product better for the following phase. The process will be repeated as many times as it is necessary until one obtains the maximum of extraction of the cereal to be transformed, it being pointed out that in many phases it is necessary to use removers (E) the function of which is to eliminate possible scales that are formed during the milling.
SUMMARY OF THE INVENTION
It should be noted that such systems and processes are highly complex, requiring a very costly installation. The solution for this problem would be a machine capable to carry out all such operations at the same time, that is: the product leaving the cylinder would pass through the machine and reach final products and by-products, eliminating the pneumatic conveyor, the screening, the division, the removal, the intermediate blenders and simplifying the processing phases. Concerned with these facts, the applicant has developed the subject machine which carries out the operations of transport, several types of screening, division and removal. With the employment of this new concept, the pneumatic conveyor assembly and the respective cyclones, the removers, the several types of screens and intermediate blenders can be eliminated.
Another important item comprises utilizing such new concept in already-existing classic systems, processing entire phases, increasing the overall capability, not needing, therefore, a new system but using the existing one, the new machine being arranged at any point of the process.
The aims of the applicant in the subject patent application refer to a new concept of centrifugal screening through rotative blenders surrounded by a cylindrical screen jacket composed of multiple individually removable boards, which processes the screening of all the products of an entire phase of the industrialization process and that can be employed in all the phases. In any of such phases final products are obtained and the machine can simultaneously carry out the raising, screening, division and removal of the products.
It is convenient to point out that the process is not similar to any other systems known heretofore, it having the quality of novelty constituting notable technological progress. It can have industrial application and its utilization will facilitate and simplify greatly the screening in the industrialization of cereals.
BRIEF DESCRIPTION OF DRAWINGS
Now this new concept will be explained in all of its details and for better illustration of the present specification, references will be made to the attached drawings in which a screening device in accordance with the invention is schematically represented:
FIG. 1 is an external view of the structure.
FIG. 2 is an internal view of the structure of FIG. 1.
FIG. 3 is a general view of the cylindrical screens jacket compo
REFERENCES:
patent: 288745 (1883-11-01), Tustin
patent: 319574 (1885-06-01), Gathmann
patent: 380348 (1888-04-01), Prinz
patent: 676645 (1901-06-01), Arnold
patent: 788219 (1905-04-01), Ogle
patent: 1784219 (1930-12-01), Brennan
patent: 1897624 (1933-02-01), Seitz
patent: 2458113 (1949-01-01), Stevens
patent: 2576794 (1951-11-01), Jost et al.
patent: 2738065 (1956-03-01), Mahlkuch
patent: 4105543 (1978-08-01), Seifert
Adams Bruce L.
Burns Robert E.
Chiesa Richard L.
Lobato Emmanuel J.
LandOfFree
Centrifugal screening device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Centrifugal screening device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Centrifugal screening device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-606692