US 11,872,594 B2
Turf infill separation system and method for separating a dry or dried infill
Martin Welling Sørensen, Herning (DK); and Rasmus Damhus, Herning (DK)
Assigned to Re-Match Holding A/S, Herning (DK)
Appl. No. 17/641,471
Filed by Re-Match Holding A/S, Herning (DK)
PCT Filed Sep. 9, 2020, PCT No. PCT/EP2020/075213
§ 371(c)(1), (2) Date Mar. 9, 2022,
PCT Pub. No. WO2021/048214, PCT Pub. Date Mar. 18, 2021.
Claims priority of application No. 19196430 (EP), filed on Sep. 10, 2019.
Prior Publication US 2023/0211378 A1, Jul. 6, 2023
Int. Cl. B07B 1/46 (2006.01); B07B 1/36 (2006.01); G01N 15/02 (2006.01)
CPC B07B 1/4636 (2013.01) [B07B 1/36 (2013.01); G01N 15/0272 (2013.01); B07B 2201/04 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A method for separating a dry or dried infill having a composition of materials, into a plurality of fractions, comprising the steps of:
(a) providing a dry or dried infill;
(b) taking out a sample of the dry or dried infill;
(c) pre-analysing the composition of the sampled dry or dried infill so as to obtain a first set of composition values corresponding to the composition of the infill, said pre-analysis comprising the steps of (i) separating the infill into a plurality of analysis fractions based on particle size and/or specific gravity by a pre-analysis unit, and (ii) determining the relative content of each separated analysis fraction in relation to the total content of analysed infill;
(d) providing at least a first screening means configured to receive at least a first set of separation screens, the at least first set of separation screens being configured to separate the infill into a plurality of fractions;
(e) comparing the first set of composition values of the dry or dried infill with a plurality of second sets of composition values of a database, each second set of composition values corresponding to a composition of materials and to a predetermined second set of separation screens, so as to obtain a correlation coefficient and/or deviation value between the first set of composition values and each of the plurality of second sets of composition values from the database;
(f) selecting the at least first set of separation screens to be received by the at least first screening means by selecting a set of separation screens corresponding to a second set of composition values and having a correlation coefficient above a predetermined threshold and/or having a relatively low deviation value, when compared to the first set of composition values;
(g) installing the selected first set of separation screens in the first screening means; and
(h) separating the infill into the plurality of fractions.