Classifying – separating – and assorting solids – Plural – diverse separating operations – Magnetic and sifting
Patent
1991-10-04
1994-08-02
Dayoan, D. Glenn
Classifying, separating, and assorting solids
Plural, diverse separating operations
Magnetic and sifting
209314, 209420, 209630, 209692, 209702, 209707, 209930, 209 441, 209 444, 209635, 209925, 209931, 209933, 209935, B07B 900
Patent
active
053337387
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The invention relates to a method for the recovery of materials, particularly from construction site wastes, as well as to a system for implementing the method.
According to a reference in German Patent No. 3,248,493, the construction industry encounters, in addition to its classical demolition rubble, a waste material composed of the classical rubble of sand, soil, rocks and concrete remnants, as well as mixed rubble containing a large percentage of reusable substances such as wood, metal, textiles, paper, plastics or the like. This mixed rubble encountered during the reconstruction of buildings has in the past been sent in large quantities to trash dumps with the result that the dumps are filled up quickly. As stated in the cited patent, it is also desirable to separate such mixed rubble or mixed waste into its components in order to be able, in particular, to recycle the valuable materials and simultaneously reduce the amount stored in dumps. It would therefore be desirable to separate the mixed rubble from construction site wastes in such a way that it is divided into its essential components that can be recycled.
The above-cited U.S. Pat. No. 3,248,493 discloses, as a solution of this problem, a method as well as a system for implementing the method in which a plurality of process steps including automatic and manual sorting are connected in series. For example, the following assemblies are connected in series: preliminary screen, bunker, first handling station, shears, iron selector, first screening drum, non-ferrous selector, second handling station, second screening drum, etc. This plurality of individual, automatic or manual processing stations are connected with one another by means of conveyor belts. The final fractions obtained at the end are then generally again transported by means of conveyor belts to separate bunkers or onto a stockpile.
Such systems are spread out over a very large area, with the connection between the individual processing stations being effected by means of conveyor belts. Such systems are therefore feasible to erect only at an exposed location since they usually also involve a considerable stress on the environment, particularly with respect to noise and dust. The construction site wastes must therefore often be transported over long distances to these special systems, which also involves costs and effort. Moreover, the generally employed conveyor belts to connect the individual processing stations are very expensive and susceptible to damage from such complicated construction site wastes. The final fractions are then transported by means of additional conveyors to stockpiles or in containers.
SUMMARY OF THE INVENTION
The invention is based on the object of creating a method and a system for implementing the method which, in principle, also performs a separation of the waste components into the individual valuable materials and whose system is very simple, not very susceptible to malfunction and of flexible configuration. In particular, the method and the system should be usable so that mobile, that is, location independent, processing of such waste materials is possible with the least expenditures. It is to involve the smallest number of susceptible conveyor belts or transporting belts.
The above and other objects are accomplished according to the invention by the provision of a method for recovering valuable materials from construction site wastes or industrial trash, including: screening device, the coarse screening device removing large items over a predetermined size from the substance mixture;
feeding the substance mixture by way of an ascending conveyor into an elevated, transportable container, the container resting on a transportable foundation of at least two vertically intersecting walls forming at least four chambers underneath the container; using at least one sorting device including a screening machine equipped with plural screens arranged sequentially in the direction of the feed of the substance mixture, each screen separ
REFERENCES:
patent: 672696 (1901-04-01), Bond
patent: 2071456 (1937-02-01), Dartnell
patent: 2151894 (1939-03-01), Cambessedes
patent: 4242197 (1980-12-01), Voelskow et al.
patent: 4693379 (1987-09-01), Stehle
patent: 4760925 (1988-08-01), Stehle et al.
patent: 4763793 (1988-08-01), Stehle et al.
patent: 4855039 (1989-08-01), Genev
patent: 5101977 (1992-04-01), Roman
patent: 5116486 (1992-05-01), Pederson
Fuchs Dieter
Strohhacker Peter
Dayoan D. Glenn
Maschinenfabrik Bezner GmbH & Co. KG
Nguyen Tuan N.
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