Tenders Are Invited For Delivery Of A Bag Ripper

The Subject Of The Order Is The Delivery, Assembly And Commissioning Of A Brand New Bag Tearing Machine In The Technological Line Of The Mixed Municipal Waste Processing Line, In The Sorting Hall Of Magazynowiska Odpadów Komunalne Sp. Z O. O. , Ul. Nadwiślańska 36 In Oświęcim. Functional Description Of The Device1. The Contractors Task Is To Install A Device For Breaking Bags On The Existing Sorting Line, Including It In The Existing Technological System Of The Employer. 2. The Device Will Be Delivered Complete With All Elements/Subassemblies Necessary For Installation In The Existing Line. 3. The Power Supply Is On The Side Of The Ordering Party. 4. The Ordering Party Requires The Installation Of The Device In A Way That Allows Work Without It. 5. The Contractors Works Must Be Planned In Such A Way As To Limit Technological Downtimes In The Functioning Of The Plant. 6. The Device Must Be Brand New (Year Of Production: 2023), Free From Defects In Construction, Material, Workmanship And Legal Defects. 7. The Device Must Come From Mass Production, It Cannot Be A Prototype.8. The Employer Expects The Installation Of A Device For Bursting Bags Equipped With A Low-Speed Bursting Rotor, Adapted To Process The Stream Of Mixed Municipal Waste. 9. A Device For Breaking Bags Connected To A Bunker Made As A Charging Bunker With A Chain Conveyor. 10. The Hopper Is To Be Permanently Connected To The Ripper. Both Elements Are To Form One Unit Placed On A Stable Load-Bearing Structure Anchored To The Floor Of The Hall. 11. Service Access To The Internal Elements Of The Chain Conveyor Through Quickly Removable Side Covers Along The Entire Length Of The Hopper. 12. The Device Must Have A Stable Frame Made Of Steel Profiles And Bent Sheet Metal And Equipped With Covers On Each Side. 13. The Device Is To Be Characterized By High Resistance To Dirt, Clogging And Wrapping Of The Material And Be Adapted To Work In Harsh Conditions. 14. The Bursting System Shall Consist Of A One-Piece Rotor With Knives Bolted To Its Outer Surface And A Bursting Comb Where The Bags Will Be Burst And Emptied Of Material Between The Rotor And The Comb. 15. The Rotor Is To Be Equipped With Roller Bearings. 16. The Flow Of Material In The Machine Should Be Smooth For Optimum Bag Opening And Emptying Efficiency. 17. The Device Should Make It Possible To Adjust The Operating Parameters To Various Degrees Of Filling The Bags And A Variable Stream Of Material. 18. The Tank Is Made Of A Stable Frame Made Of Steel Profiles. 19. Tank Walls Made Of Steel Sheet With A Thickness Of Min. 4 Mm With Reinforcements.20. It Should Be Possible To Fill The Ripper Hopper With The Loader Up To The Upper Edge Of The Side Walls Of The Hopper. 21. The Bunker Should Be Equipped With Raised Areas To Limit The Spillage Of Material Around The Machine During Its Loading. 22. Raises Are To Be Mounted To The Upper Edges Of The Container Above The Rear And Side Walls. It Is Assumed That The Height Of The Increases Will Be Min. 800Mm. 23. The Ordering Party Expects The Delivery Of A Tearing Device With A Control System That Guarantees Capacity Adjustment Through Smooth Adjustment Of The Feed Speed. 24. Material Is Required To Discharge From The Ripper In A Continuous Flowing Stream. Solutions In Which The Material Is Guided From The Tearing Device To The Collecting Conveyor In Cyclical - Step By Step Manners Are Not Allowed. 25. The Material Should Be Transported From The Hopper Through The Bursting Elements To The Discharge Opening. 26. Bursting Mechanism Equipped With Knives Tearing Plastic Bags. 27. Bags Must Be Torn Apart And Emptied As Much As Possible, Then Fed In A Steady Stream Of Material Onto The Channel Conveyor Located Under The Ripper. 28. It Is Required That The Device Be Equipped With A Procedure Protecting Against Damage To The Working Elements By Foreign Bodies By Automatic Retraction Of The Material In The Hopper And A Temporary Change In The Direction Of Rotation Of The Rotor (The So-Called Reverse).29. Working Tools (Knives) Should Be Quickly Replaceable, Fastened With Detachable Connections. 30. In The Front Part Of The Bunker (Near The Rotor) It Is Required To Be Equipped With Access Doors With A System That Allows Them To Be Opened Only After Disconnecting The Power Supply To The Control Cabinet Of The Device.31. The Ripper Should Ensure Technical Efficiency Allowing For Work In A Two- Or Three-Shift System, For: • 250 Days/Year, • 7 Hours Of Effective Work Per Shift, • Approximately 3,500 Hours Per Year32. The Required Effectiveness Of Opening Bags For Mixed Waste Is Min. 90% For And 95% For Selective Collection. 33. A Bag Is Considered To Be Open If The One In The Drum Screen Is Emptied Or Has At Least One Cut Or Tear Through Which An Opening Is Created That Corresponds To The Size Of The Bags Loading Opening.34. The Employer Requires The Support Feet To Be Located Outside The Existing Channel Of The Bunker Conveyor. 35. The Supplier Of The Equipment Will Also Be Obliged To Relocate The Inspection Hatch Of The Used Channel Conveyor So As To Enable Entry Into The Channel. The Existing Manhole Is Located Under The Planned Location Of The Ripper. Iii. The Subject Of The Order Must Meet The Following Technical And Operational Requirements: 1. Number Of Teeth On The Rotor 30 - 40 Pcs.,2. Minimum Capacity: 10 Mg/H With A Bulk Density Of The Material Of 100-150 Kg/M³.3. Minimum Capacity: 20 Mg/H With A Bulk Density Of The Material Of 250-350 Kg/M³.4. Conveyor Drive In The Hopper Via A Motoreducer With A Power Of Max. 2.0 Kw, Located On The Side Of The Bursting Rotor, 5. Transport Of The Material In The Hopper By Means Of A Chain Belt Conveyor, 6. Conveyor Speed Control In The Bunker Via An Inverter,7. Dimensions Of The Ripper: A) Length Of The Machine: Max. 7,500 Mm, B) Width Of The Machine: Max. 3,500 Mm, C) Height Of The Filling Edge Of The Container: Max. 2,800 Mm, D) Length Of The Filling Edge Of The Container: Min. 4,000Mm,8. Hopper Capacity: Min. 12 M3, 9. The Container Should Be Permanently Connected To The Tearing Device, 10. Internal Width Of The Bin Min. 1600Mm,11. Tank Walls Made Of Steel Sheet With A Thickness Of Min. 4 Mm With Reinforcements12. Rotor Outer Diameter (Including Knives) Min. 1500Mm,13. Working Tools (Knives) Quickly Replaceable, Fastened With Detachable Connections (Without The Need For Cutting And Welding), 14. Bag Breaking System Consisting Of A One-Piece Rotor With Fixed Knives Screwed To Its Outer Surface And A Bursting Comb, Adapted To Process A Stream Of Mixed Waste Municipal And Selectively Collected,15. The Device Is Equipped With A Movable Bursting Comb And A System For Adjusting Its Distance From The Bursting Rotor, Enabling Adjustment To Various Degrees Of Bag Filling And Variable Stream Of Material,16. The Required Effectiveness Of Opening Bags For Mixed Waste Is Min. 90% And 95% For Selective Collection.17. The Device Is Equipped With A System For Automatic Cleaning Of The Rotor From Wrapped Impurities By Means Of A Strip With Scrapers, Which Is Hydraulically Moved To The Rotor. The System Is Switched On Manually With The Possibility Of Programming Its Cyclical Operation In Automatic Mode,18. The Bursting Rotor Is Driven By A 15-20 Kw Motoreducer With A Hydraulic Safety Clutch, 19. Constant Rotational Speed Of The Rotor, Max. 20 Rpm, 20. The Device Is Equipped With A Procedure Protecting Against Damage To Working Elements Obstructing Waste - Automatic Rotor Reverse,21. It Is Required To Make A Service Flap In The Rear Wall Of The Device, Ensuring The Possibility Of Removing The Complete Conveyor Belt With Chains And Crossbeams, 22. Total Power Of The Device Max. 25 Kw,23. The Bunker Is Equipped In The Front Part (Near The Rotor) With An Access Door That Opens Outside The Machine,24. Access Door Secured With A Key System, Where A Special Key Is Used Both To Turn On The Control Cabinet And To Open The Access Door, I.E. Disconnecting The Control Cabinet In Order To Open The Door.