Technical questions in the sector: Bulk
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What are the benefits of using mixed screen sizes in a trommel screen ?
Last response: L'utilisation de tailles d'écran mixtes dans un trommel screen présente plusieurs avantages techniques significatifs. Premièrement, elle permet une amélioration de l'efficacité de la séparation... Read more
How does the material type affect trommel screen performance
Last response: Le type de matériau influence considérablement la performance d'un trommel screen, affectant la capacité, l'efficacité de séparation et la durée de vie de l'équipement. Read more
How does the angle of the trommel drum affect material separation
Last response: L'angle d'inclinaison du tambour d'un trommel joue un rôle crucial dans l'efficacité de la séparation des matériaux. Un angle d'inclinaison optimal favorise le déplacement des matériaux à travers le... Read more
What is the difference between crushing and grinding?
Last response: We rather speak of crushing for the coarse particle size reduction (exp: from the quarry block to granules of a few millimeters), and of grinding for the particle size reduction in the powder phase. Read more
I have waste larger than 150mm and I would like to reduce its size. A hammer mill will be inefficient for the rocks and a crusher requires to separate the waste). What solutions do you recommend for shredding this mixed waste?
Last response: Hello, Could you specify the nature of the materials to be crushed? If I understand correctly, you have rock type materials, with metal inclusions? therefore not crushable? Read more
What are the differences between scalper, crusher, impactor and screener?
Last response: Hello, A scalper: is equipment used upstream of a separation process to remove the finest particles that are sometimes harmful to the rest of the process. Read more
What is a scalper? Is there a difference between a screen and a scalper?
Last response: Un scalper, dans le contexte industriel, est un équipement de traitement des matériaux utilisé pour séparer et éliminer les particules non désirées ou de grande taille d'un flux de matériau. Read more
On a construction sorting center, what kind of screen would you recommend to obtain a clean 6/10 with wet products?
Last response: Hello, It is difficult to give you a point-blank answer, because the answer is conditioned by the capacity, the input particle size, the nature of the input products and whether they contain clays or... Read more
What parameters should be taken into account when choosing a mobile sand screening unit?
Last response: Lors de la sélection d'une unité mobile de criblage de sable, plusieurs paramètres techniques doivent être pris en compte : 1. Read more
For a screener, is the screening throughput necessarily linked to the screening area? What will be the maximum flow rate (m3/h) possible?
Last response: Hello, It's a very interesting question. You have to look at several factors: 1 - The approach to your product, size, density, humidity, shape, above all do not neglect the apparent and real... Read more
During a screening, what then becomes of the "screening refusal"?
Last response: Biomass recovery if no waste mixed with
My sifting refuse looks like some kind of crushed wood. Is it possible to put it on the alleys and paths as "chips"?
Last response: Hello, shredded wood can also be used as an underlay for odor treatment biofilters. But here too, it depends on the grain size, cleanliness and origin of the wood. Cordially
What is a 'screening denial'?
Last response: The screening reject is in fact the coarse fraction during a screening operation, the one whose particle size is too large to pass the mesh. Read more
What is the output of a screen crusher on a 0/14 output basis?
Last response: La sortie d'un concasseur à écran sur une base de 0/14 mm est déterminée par plusieurs paramètres techniques. Tout d'abord, il faut comprendre que le terme "0/14" fait référence à la granulométrie du... Read more
Near my home, in Belgium, a crusher (12 days/year) and a screener (24 days/year) will operate, the residues may contain asbestos. Can you direct me to studies on dust and its impact on health?
Last response: Pour une analyse approfondie de l'impact des poussières contenant de l'amiante, il est crucial d'examiner des études épidémiologiques et toxicologiques reconnues. Read more
What is the rotation speed for an earth/stone separator screen?
Last response: La vitesse de rotation d'un cribleur de terre/pierre dépend de plusieurs variables techniques telles que la granulométrie des matériaux, la capacité de traitement requise, ainsi que le type et la... Read more
What is the average percentage of reject on separation and screening?
Last response: Your question deserves to be refined. Rejection is the product that does not pass through the screen of a sieve. So it can go in principle from 0 to 100% (the extreme cases are what we call security... Read more