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NORDBERG LT1213 application guide lines. LT1213 CAN BE USED FOR CRUSHING NATURAL ROCK OR RECYCLING MATERIAL IMPACTOR ADVANTAGES HIGH REDUCTION RATIO EXCELLENT.

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Presentation on theme: "NORDBERG LT1213 application guide lines. LT1213 CAN BE USED FOR CRUSHING NATURAL ROCK OR RECYCLING MATERIAL IMPACTOR ADVANTAGES HIGH REDUCTION RATIO EXCELLENT."— Presentation transcript:

1 NORDBERG LT1213 application guide lines

2 LT1213 CAN BE USED FOR CRUSHING NATURAL ROCK OR RECYCLING MATERIAL IMPACTOR ADVANTAGES HIGH REDUCTION RATIO EXCELLENT END PRODUCT SHAPE HIGH CAPACITY SAME UNIT CAN BE USED AS A PRIMARY AND AS A SECONDARY CRUSHER VARIOUS END PRODUCTS CAN BE CRUSHED WITH ONE CRUSHING STAGE RECYCLING (SEPARATE THE STEEL FROM THE END PRODUCT) FINE PRODUCT IMPACTOR DISADVANTAGES NOT ECONOMICAL TO CRUSH ABRASIVE MATERIALS CAN’T BE USED FOR CRUSHING VERY HARD MATERIALS

3 LT CRUSHING NATURAL ROCK FEED MATERIAL LIMITATIONS AVERAGE BOND WORK INDEX LESS THAN 16 MAXIMUM IMPACT WORK INDEX LESS THAN 23 INDICATIVE ABRASSION INDEX LIMITS FOR ECONOMICAL OPERATION 180 g/t, MANGANESE STEEL HAMMERS 230 g/t, MARTENSITIC STEEL HAMMERS 550 g/t, CHROMIUM CAST IRON HAMMERS TYPICAL ROCKS -LIMESTONES, DOLOMITIC LIMESTONE, GYPSUM,TALC,CHALK,MARBLES,MARL, SCHISTS,SLATES THREE SPEED RANGE 450, 520, 600

4 LT CRUSHING RECYCLING MATERIALS TYPICAL RECYCLING MATERIALS CONCRETE WITH AND WITHOUT REBARS MIXED DEMOLITION MATERIAL-CONCRETE, BRICKS,WOOD,STEEL… ASPHALT

5 SORTING OF THE FEED MATERIAL CRITICAL FOR SUCCESSFUL RECYCLING OPERATION BREAKING DOWN THE OVER SIZE OF THE FEED MATERIAL WILL INCREASE THE CAPACITY UNCRUSHABLE MATERIALS MUST BE PULLED OUT FROM FEED MATERIAL MAX. RE-BAR DIAMETER 19 mm AND LENGTH 1000 mm PRE-SORTING OF THE FEED MATERIAL

6 LT PROCESS PARAMETRES FEED CAPACITY ROTOR SPEED SETTING HAMMER MATERIAL HAMMER CONFIGURATION FOUR HAMMERS SLOTTED HAMMERS POWER CONTROL

7 SETTING - EFFECT TO PRODUCT CURVE ATTACHED PICTURE SHOWS THE EFFECT TO PRODUCT CURVE WHEN SETTING IS CHANGED FROM 100 mm TO 30 mm REDUCTION RADIO INCREASE POWER DRAW INCREASES FROM 149 kW TO 212 kW THE 90% POINT MOVES FROM 120 mm TO 65 mm Feed curve 90

8 ROTOR SPEED - EFFECT TO PRODUCT CURVE ATTACHED PICTURE SHOWS THE EFFECT TO PRODUCT CURVE WHEN ROTOR SPEED IS CHANGED FROM 450 RPM TO 750 RPM POWER DRAW INCREASES FROM 84 kW TO 217 kW THE 90% POINT MOVES FROM 100 mm TO 50 mm AMOUNT OF -10 mm INCREASES FROM 30% TO 45% EFFECT OF ROTOR SPEED TO HAMMER LIFE EXAMPLE FROM FRENCH QUARRY -ABRASSIVITY INDEX 1300 g/t -SPEED DROPPED FROM 650 RPM TO 400 RPM -HAMMER LIFE INCREASED FROM 50 HOURS TO 250 HOURS Feed curve 90

9 4 HAMMERSSLOTTED HAMMERS HAMMER CONFIGURATION HEIGHT LIMIT FOR CHANGING HAMMERS 60 mm

10 NUMBER OF HAMMERS EFFECTING ON PRODUCT CURVE 90% POINT IS 80 mm WITH FOUR OR TWO HAMMERS AMOUNT OF -50 mm DECREASES FROM 64% to 61% Hard rock Speed 450 rpm Setting 90 mm High capacity 90

11 QUALITIES OF HAMMERS MANGANESE STEEL The only quality enabling to crush without breakage Concrete50 to 100 hours Demolition40 to 200 hours Asphalt40 to 150 hours MARTENSITIC STEEL With same risks of breakage according to the materials processed and reduction requested. Resists better to the wear than manganese Concrete60 to 150 hours Demolition48 to 300 hours Asphalt48 to 225 hours CHROMIUM CAST IRON Good for the asphalt processing if there is not tramp iron. High risks of breakage in concrete and demolition but the financial balance can be positive if the customer is aware of such risks and accepts them. Concrete150 to 400 hours Demolition120 to 800 hours Asphalt120 to 600 hours

12 FEED CAPACITY - EFFECT TO PRODUCT CURVE WHEN FEED CAPACITY IS INCREASED END PRODUCT CURVE WILL BE SLIGHLY COARSER WHEN FEED CAPACITY IS INCREASED FROM 50 TPH TO 250 TPH POWER DRAW IS INCREASED FROM 61 kW TO 214 kW

13 AUTOMATIC FEEDER CONTROL Example 1 Example 2 Example 3 ADJUSTABLE FEED CONTROL ADJUSTABLE POWER LIMITS ENABLE TO STABILIZE THE MATERIAL FLOW TO FOLLOWING PROCESS

14 SUMMARY Slotted

15 NORDBERG LT1213 APPLICATIONS

16 Customer:Gebr. Hanssen BV Customer segment:recycling contractor Country:Netherlands Typical feeds:concrete,asphalt,mixed demolition debris Typical products:concrete -40 mm (nominal capacity 180 t/h) asphalt -20 mm (nominal capacity 100 t/h)

17 Customer:Brabant BreCom bv Customer segment:recycling contractor Country:Netherlands Typical feeds:concrete,asphalt,mixed demolition debris Typical products:concrete -40 mm (nominal capacity 180 t/h) asphalt -20 mm (nominal capacity 100 t/h)

18 Customer:Wimmer&Wecks Customer segment:quarry and contracting Country:Germany Typical feeds:hard stone, recycling Typical products:in customers quarry -50 mm, average capacity 280 t/h, bond index 22,4 kW/t, shatter index 41, dolomite, feed size -500 mm

19 Customer:Kurt Eberle ag Customer segment:recycling contracting Country:Switzerland Typical feeds:asphalt, concrete Typical products:asphalt -20mm, capacity 100 t/h % oversize

20 Customer:Hagedorn Recycling GmbH Customer segment:recycling contractor Country:Germany Typical feeds:Mixed recycling material reinforced concrete, asphalt, bricks, top soil, rock mm Typical products:size 0-8 mm 8-45mm 45-mm / 150 mtph

21 Customer:Simmerather Recycling GmbH, Stephan Brown Customer segment:recycling contractor Country:Germany Typical feeds:Mixed recycling material concrete, asphalt, rock, bricks, top soil mm Typical products:size 0-4 mm 4-45mm mm / 25 mtph

22 Customer:Eckl Customer segment:Aggregates Contractor Country:Germany Typical feeds:Limestone mm Typical products:size mm / 183 mtph

23 Customer:Baumaschinen Alfred Plötz Customer segment:Aggregates Contractor Country:Germany Typical feeds:Granite mm Typical products:size 0-32 mm / 130 mtph

24 Customer:Wimmer&Wechs Customer segment:Aggregates Contractor Country:Germany Typical feeds:Gravel mm Typical products:size 0-32 mm / 260 mtph


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