What are the differences between scalper, crusher, impactor and screener?
1 answer
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. more simply, it is a kind of screen that can accept blocks of stone sometimes weighing several tons and intended to remove particles smaller than 80-100mm before directing them to a crusher. They are generally equipped with diverging bars and not grids and are often the first piece of equipment in a separation unit; they are placed in the primary.
A crusher: is equipment used to reduce the size of the aggregates, depending on the grinding technology, the materials, the flow rate, it will have more or less of an effect on this reduction.
A hammer: it is a type of crusher / grinder. There are 2 types of hammers: vertical axes and horizontal axes. The vertical axes are often called form correctors, and the horizontal axes take the name of strikers. The technology is quite simple, the product to be crushed enters the crusher from the side and meets a horizontal rotor equipped with beaters. The beaters collide with the rocks and project them onto projection surfaces called curtains. you can adjust the fineness of crushing by adjusting the distance between the curtains and the rotor. depending on the applications and types of rock, these crushers can be equipped with 2 or 3 curtains. The curtains are closer and closer to the rotor so that we speak of crushing stages.
a screener: and a generic name little used, we will speak either of screens or of sieve. The limit of these 2 equipments being generally located at a screening or sieving of 10mm. from 0 to 10 mm we will speak of a sieve beyond a sieve. These equipments are used to carry out a separation of products which enter the equipment according to the size of the particles. this separation is possible thanks to the combined effect of the vibration provided by a mechanical excitation and a screening grid. There are several types of vibration, grids, machine inclination, and necessarily budgets.
Questions on the same topic
What parameters should be taken into account when sizing a trommel screen? diameter, length, torque, power...
Last response: Hello , Contact us and we will discuss your specifications, each need requires reflection, and depending on your volumes and materials, we adapt our trommels WWW.TPRE.FR
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 parameters should be taken into account when choosing a trommel for rubble and demolition waste?
Last response: Hello a trommel screen for the rubble and demolition waste recycling sector is subject to specific constraints due in particular to the specific weight of this waste, its size (concrete blocks or... 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
Which screen to use for street sweeping waste?
Last response: hello we use screening buckets. our cups make it possible to separate the fines from the largest elements 0/10mm. it is particularly interesting for low volumes because the cost is low (about 1$ per... Read more
What is the difference between a crusher and an "impact crusher"?
Last response: Hello, It's a matter of vocabulary A crusher is a crusher, the two terms mean the same thing according to the dictionary. 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
What types of crushers make it possible to have 0/14 or 0/20?
Last response: Hello, It's a big question. Which deserves clarification. Many grinding technologies can achieve the particle sizes you require. Read more