Screening Plant types, working & applications

Screening Plant
Screening Plant

The screening plant is being modified to match the project to ensure it can stand up to the job and function in the right environment. The mining, aggregate and mineral processing industries are the biggest users of screening equipment. These are often used in quarries and mines. With technological advancement the demand is ever-increasing. There is a need for customization of screening machines and the manufacturers. The mining, aggregate, and mineral processing industries are the biggest users of screening equipment. Given below are different types of screening plant types, their working principle and applications.

Screening plant types, working & applications

Circular vibrating screen plant with torsion-free screen frame

Circular vibrating screen models are used for the screening of granules bulk material. The screen frame consists of both side panels and cross beams being bolted and glued to the panels carrying the screen deck substructure. Modern models come with single- or multi-deck screen features with torsion-free screen frames. The excitation is made with an in-house manufactured shaft or with a single unbalanced motor. Modern circular motion vibrating screen models can be equipped with all different kinds of screen mats. Circular motion vibrating screens are best suitable for long-living and economical operation. It can be used in a multitude of industries such as in Iron and Steelworks, Coal, Foundry, Sand and Gravel, Mining, Recycling Waste and various other industries.

Dewatering vibrating screen plant with dual-motor self-synchronization drive technology

Dewatering Vibrating Screen models come with dual-motor self-synchronization drive technology with built-in eccentric blocks. The vibration amplitude can be adjusted by the eccentric block. Models are mainly composed of a screen deck, vibrating motor, supporting system and electric control system. Through the synchronous and reverse operation of the vibrating motors, the centrifugal force generated by the two sets of eccentric masses is superimposed along the vibration direction. These screens dewater material and sludge and produce bulk material which can be transported with standard means. They are also used to recover solid particles from liquids, muds or sludges. The robust screen frame is manufactured in either a welded or a bolted and glued design, depending on the application. It is applicable for Mining Tailings Dewatering & Dry Discharge, Water-washed Sand Dewatering, Potash Feldspar Dewatering, Environmental Mud Dewatering and Fine Sand Recovery Application.

Grizzly screen plant designed for the toughest applications capable of high capacity

Modern Grizzly screens are designed for the toughest applications capable of high capacity and the ability to process coarse material. These screens have a very robust design, which allows them to operate under tough conditions (primary or secondary). These are equipped with grizzly or perforated plates mounted staggered to make the tip of the block over. The modern series of screens are equipped with many features enabling high efficiency and ensuring various operational advantages. These advantages reduce maintenance and servicing costs, along with necessitating less downtime. These models are available in single or multiple deck designs and can be designed to fit into your existing machine’s footprint for a seamless transition from old brute force technology to the improved Two-Mass design. The wide variety of screening decks provide improved performance for processing that follows size reduction mills or crushers. Multiple sizing decks are available on a single unit, which allows for versatile usage. The wide range of available screen sizes can be set at various angles to meet your process requirements.

Horizontal screen plant with dual motor configuration

Horizontal screens are equipped with two vibrating motors rotating in opposite directions. This dual motor configuration in the Horizontal Vibrating Screen causes the screen’s frame to vibrate in a linear or straight-line motion perpendicular to the plane of the motors. Depending upon the application, the horizontal vibrating screen frame can be positioned from 10 degrees uphill to 15 degrees downhill. Maximum capacity is achieved in the uphill position, causing the formation of a pool at the feed end of the machine. The head or pressure from the pool increases fluid throughout. The horizontal vibrating screens of the screens frame efficiently convey the oversize particles out of the pool area where they are then discharged.

Inclined screen plant with cross beam inspection ports

Modern models are designed with operator safety in mind. Side plates feature cross beam inspection ports that allow you to inspect the inside tubes for failures when the tube is not visible due to abrasion-resistant lining, thus eliminating the need for operators to crawl between decks for inspections. Foreign material that can corrode or abrade the inside of the cross members and cause premature failure can be flushed out via cross beam inspection ports. There are various types of Inclined Screens, including two and four bearing, high-speed, and high-frequency screens. The overwhelming majority of installations today are either two or three decks, though there are single and four-deck varieties available as well.

Mobile screen plant with greater mobility

Modern mobile screens come with high-quality components and engineering without compromises ensures trouble-free production. They offer outstanding mobility and can easily be adjusted to perfectly fit your changing process or location needs. Mobile screens are ideal for screening and scalping blasted rock, sand and gravel, recycled concrete and topsoil to produce a variety of construction and landscaping materials such as road base, and railway ballast.

Trommel screens plant with a hydraulic drive system

Modern trommel screens are highly efficient in the separation and processing of wood chips, topsoil, compost, light demolition waste, domestic waste and aggregates. Their rotating drums roll larger pieces of material to allow all fines to flow down and through the trommel screen plates. The latest models feature a highly efficient engine and hydraulic drive system combined with an advanced material processing control system offering maximum production combined with minimum costs. It is ideally suited for screening compost, biomass, soil, gravel & waste. Trommel Screens are attached to the end of grinding mills and scrubbers to perform a variety of screening functions. The trommel screen comprises the rubber-lined steel frame and replaceable screening surface.

Disc screen plant with anti-clogging system

Modern Disc Screen models are adopting the anti-clogging system, developed for urban and industrial waste through years of experience and testing. The models come with features such as optional orientation rolls on initial rotors to help transition material onto the main screen area. It covers for dust control can include air pick up to remove lightweight material for coarse material. The latest models offer an efficient and cost-effective solution for any high-volume screening application. These Screens operate by feeding material from an infeed device to the slope sheet. Smaller material, such as sawdust, falls through narrow openings in the disc, while larger materials like chips, bark and hogged wood continue to move to the end of the screen and feed to a grinder, hog, hammermill, re-chipper, bunker or reject conveyor. Low speed, smooth operation eliminates the need for special support structures, and the space-saving design reduces installation costs.

Vibrating screen plant with circular motion modular vibrators

Modern heavy-duty screens that will sort your rock or mineral products effectively. We are experts at designing new custom screening plants and retrofits into existing operations. The conventional and general design for a high-frequency vibrating screen consists of a mainframe, screen web, eccentric bock, electric motor, rub spring and coupler. Modern models feature circular motion modular vibrators with two bearings per vibrator and a unique angle of the circular motion.The two most common types of vibrators which induce high-frequency vibrations are hydraulic or electric vibrators, these electric vibrators are either electric motors or solenoids. Modern high-performance Vibrating Screens machine is engineered to deliver increased productivity and operating benefits compared to conventional spring-mounted Vibro separators. Common designs for screening decks are either single or double deck. Besides, another feature of high frequency vibrating screens is the static side plates which provide benefits such as smaller support structure, less noise, longer life, and hence less maintenance. Vibratory screeners are becoming more widely used across various industries because they allow for strict size-control and efficient separation in material sorting.

Revolving screen plant with replaceable rake screen

Modern revolving screens come with the hydraulic performance of simply perfused rakes and an inclined, replaceable rake screen, this machine offers a maximum flow cross-sectional area. New generation revolving screens help to overcome problems such as blocking or sticking screens in screening wet adhesive materials. The yield and reliability of the screen have been greatly increased. The application of screen materials includes various properties, such as coal, gangue, coke; hydrated lime and other easily plug wet materials. It can be used in power plants, coking plants, building materials, metallurgy, chemical, mining and other industries.

Banana screen plant with different gear units

Banana screens can handle a two to three times higher specific feed rate. These screens are best used when there is an increased feed rate or when the capacity must be very high. Modern banana screening machines achieve good separating accuracy at an extremely high feed rate and with difficult-to-screen material. Its operational behavior makes it a high-speed screen. Compared with conventional vibrating screens, the banana screen handles a considerably larger feed quantity for the same screen area. Different gear unit sizes enable outstanding setting-up to suit your specific application. Balance masses and speeds can be adjusted in stages, enabling linear vibration amplitude and screen box acceleration to be optimally adapted to meet process requirements.

Elliptical motion screen plant with synchronized shaft

The elliptical-motion screening machine combines the advantages of linear- and circular-motion screens as well as enabling space-saving horizontal installation and high material throughput. Both mechanical and electronic elliptical-motion screens can be selectively varied and adapted to operating conditions. This is done by, amongst other things, altering the throw angle essential for transport speed and by adaptation of parameters important for acceleration of the machine, such as vibration amplitude and speed.

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