LIWELL® screening machines have been in operation for decades and are the guarantor for optimal technology in classing feed materials which are difficult to screen.
The special construction generates accelerations on the screen panel, unequalled up to now, of approx. 50 g – where the machine structure is subject to small forces only, of approx. 3 g.
Different types and designs of the machines and screen mats provide an optimal solution for every case of application.
The basic principle of the trampoline-like movement of polyurethane screen mats, from loose to tension to strongly stretched condition, is used in all types.
As a result, there is optimal reliability where the problems caused by clogging and sticking grains can almost be excluded.
The combination of the unique machine principle together with screen mats especially produced by us optimises the results continuously:
Different construction types allow an exact adaptation of the machine to the customer needs:
The best seller of the LIWELL® screening machines – Type LF – is characterized by its unique properties:
The simple and solid machine construction is only exposed to small acceleration forces (2-3 g) during being in operation. A long service life of the machine components is the result of this mode of operation.
The Type LF is available as a single-deck and as a double-deck variant:
The individual structuring of the machines allows delivery according to customers’ requirements, i.e. “customized”:
The LIWELL® screening machines Type KT for fine screening of coarse feeding materials:
Through a symbiosis of circular vibration and flip-flow screening, it is possible to classify coarse bulk materials with the LIWELL® KT type.
The upper deck is operated as a circular vibratory unit and serves as a protection deck. On the lower deck, the difficult to screen fine separation is executed by means of flip-flow movement.
According to requirement, the protection deck (upper deck) can be equipped with all types of screen panels and exchange systems. On the lower deck, the well-proven LIWELL® screen mats make sure an effective fine screening.
With screening of different materials, two problems mainly occur:
•Clogging of the screen panels through caking due to the content of moisture of the feeding material
•Sticking grains in the perforation through the grain shape
Flip-flow screening machines offer an appropriate solution to both problems. The high acceleration (up to 50 g) on the screening surface prevents or reduces screening problems through clogging and sticking grains. The kinds of application are almost unlimited in this case.
Frequent applications are:
•Screening of mineral materials, such as raw sand, crushed stone sand, ores etc.
•Sieving of coal and coke
•Separation of recycling materials, such as compost, domestic waste, slag, matured timber and glass.
The cut sizes achieved depend on the kind of application and on material properties. They start with approx. 0.5 mm and end with approx. 40 mm.
In particular with classing moist materials and/or fine materials, the advantages are very noticeable compared to conventional screening machines:
Sales
Steenplaetsstraat 22 – 26
2288 AA Rijswijk
Nederland
Postadres:
Postbus 3220
2280 GE Rijswijk
Nederland
Tel.: +31 (0)70 390 65 55
E-Mail: sales@siebtechnik-tema.nl
