Disc Screener

APPLICATION

Equipment designed for the mechanical sorting of different dimensions of particles of the same bulk material through screening by gravity. It can process different types of non-ferrous minerals (clay, schist, bentonite, plaster, sepiolite, magnesite, phosphate, limestone, dolomite, perlite, marble, granite, pet coke, talcum, kaolin, rubble, cereals, slags, fertilizers, fodder, glass, plastics, biomass, etc.).

This type of sorting allows for one granulometric cut in its total working surface, although there is a possibility to install various units on top of each other, each of these units developing its own granulometric cut. It can process dry and/or semi-humid materials of interstitial humidity depending on the consistency curve of each material y application. Depending on the model, the input dimension of the material should be between 0-250mm of diameter. The hardness of the material to be processed should be between 1-6 mhos.

FUNCTIONING AND PROCESSING

The material enters by a feeding ramp of high inclination touching the first sorting axle. From this area, the material will be conveyed vertically tipped and turned by every axle in order to attain various vertical accelerations in the opposite direction of gravity. Depending on the characteristics of the material, the acceleration will be regulated by a frequency converter in the drive mechanism. The smallest particles of the material will fall through the mesh at the bottom side of the equipment while the bigger particles will be conveyed towards the output side of the equipment where they fall through the chute to the shredder.

CONSTRUCTION

Self-supporting structure, hopper, discs + sorting axles, direct-drive, sorting mesh (screen) (optional) + input and output scrapers.

ADVANTAGES

• Self-supporting chassis out of 1 piece of high rigidity thermically stabilized.
• The bearing supports are designed and constructed by SECON-DSG and made out of anti-vibrational material, equipped with a patented sealing system which enlarges the life cycle of the double row bearings situated in the interior part, this way calculated for a lifetime of more than 100.000h working hours.
• The transmission between the various disc screener axles is done by chains and the hardened gears and lubricated in an oil bath and in continuous through dosing brush and/or regulated dripping, calculated for a liftetime of more than 100.000h working hours.
• Possibility of installing screen discs of carbon steel, stainless steel, polymer, etc…
• Equipment easy to regulate by modifying the pitch of the discs, and this way changing the average dimensions of screening/separation.
• The sorting discs can be changed very easily. The sorting discs are constructed in 3 parts bolted to the axles, which allows a very safe and quick exchange and maintenance of these parts.

TECHNICAL SPECIFICATIONS

Width screener housing	1.500 mm
Type screener housing	Rectangular
Thickness structure screener housing	5 mm
Quality screener housing	Carbon steel Din-St-52.0
Protection layer screener housing	Yes
Thickness protection layer screener housing	10 mm
Quality protection layer screener housing	PE-HD 1000
Type of lateral sides screener housing	Bolted
Thickness of lateral sides screener housing	10 mm
Quality of lateral sides screener housing	Carbon steel Din-St-52.0
Type of sealing axle supports	Double support + Double sealing
Quality of sealing	Polyethylene HD-1000
Quality sealing element	NBR-90
Top cover screener housing	Yes
Length of top cover of screener housing	750mm open (8.250mm closed)
Type of top cover of screener housing	Modular
Max. length top cover screener housing	1.000 mm
Type of closing top covers	Bolted
Thickness top cover screener housing	3 mm
Quality top cover screener housing	Carbon steel Din-St-52.0
Type screener disc	Warped clover shape, 6 blades (3 pieces)
Diameter screener disc	450 mm
Type of anchorage disc axle	Bolted
Lateral pitch center-center disc	50 mm
Thickness of disc of screener	30 mm
Quality of disc of screener	PE-HD 1000
Longitudinal pitch between centers of discs	350 mm
Type of disc axle	Tubular axle
Diameter of axles	140 mm
Thickness of axles	8 mm
Type of construction of axles	Through MIG-welding
Nº of supports of axles	2 uts
Diameter of axle in support	100 mm
Type of bearing in axle support	UCF-SERIE 200 steerable
Syncronized axles	Yes
Type of syncronization of axles	Mechanical
Type of elements for syncronization axles	Sprocket double chain 2”
Nº axles .in the disc screener	22 uts
Material to be screened	Shredded biomass
Granulometry	0-50 mm (95% under 50mm)
Humidity	According to project (max. 50% )
Density	220-250 Kg/m3
Dimensions input (width x length)	1.500×1.000 mm
Dimensions output finer particles (width x length)	1.500×6.000 mm
Dimensions output rest particles (width x length)	1.500×3.000 mm
Dimensions floor surface (width x length)	1.500×9.000 mm
Total floor surface	13.5 m2
Type of drive	Direct-drive
Type of drive gear box	Conical gears
Type of anchorage of equipment	Supported by silent-blocs
Nominal speed of axles disc screeners	50 rpm
Traction capacity	10cv (7.5 Kw) 400/690 V IP55 EFF-II
Production	220-250 m3/h (85% efficiency separation)
Mass	12.955 Kg

• _{Production depending on granulometric curve of input and geometry of the mesh and humidity of the material.}
• _{The shape and free distance between discs can be configurated depending on the material to be screened.}

ACCESSORIES

ENTRY CHUTE FROM SCREW CONVEYOR TO DISC SCREENER – INPUT 600×1.500 OUTPUT 1.000×1.500 HEIGHT 200 QUALITY DIN-St-52.0 THICKNESS 5mm BOLTED

CHUTE FOR FINER MATERIAL FROM DISC SCREENER TO DOUBLE SCREW CONVEYOR – INPUT 1.500×1.500 OUTPUT 1.000×6.000 HEIGHT 1.800 INCLINATION 20º QUALITY DIN-St-52.0 THICKNESS 5 mm BOLTED

ANCHORAGE SUPPORTS FOR DISC SCREENER TO FOUNDATION HEIGHT 2.200 QUALITY DIN-St-52.0 BOLTED ADJUSTABLE HEIGHT 100MM ANCHORAGE TO FOUNDATION BY 8 EXPANSION BOLTS M20

ANCHORAGE SUPPORTS FOR DISC SCREENER TO FOUNDATION HEIGHT 3.000 QUALITY DIN-St-52.0 BOLTED ADJUSTABLE HEIGHT 100MM ANCHORAGE TO FOUNDATION BY 8 EXPANSION BOLTS M20

WALKWAY WITH HANDRAILING SECON/DSG INDUSTRIAL SERIES ACCORDING TO CE

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