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Bombi Meccanica, Thermobonding Oven, 3 Hot Sections, 3200mm Belt Width, Gas Heated

Bombi Meccanica, Thermobonding Oven, 3 Hot Sections, 3200mm Belt Width, Gas Heated

Description

  1. Overview
    1. One thermobonding oven with 3 sections of 3.3 m each
    2. Range of application: wadding for insulation, quilting, winter-cloths, etc.
    3. Fibers blend: polyester low and bicomponent polyester
    4. Process: thermobond via hot air and cooling
    5. Weight of the web: 500-800 gsm
    6. Initial web width max: 3000 mm, at oven entry
    7. Mechanical speed: 1-15 m/min, following the weight of wadding
    8. 25-50 mm
  2. Hot Sections Flat Oven
    1. Type: flat oven, single pass, gas heated with air trough technology (positive pressure in one side, negative in the opposite)
    2. Hot sections: 3
    3. Length of each section: 3300 mm (plus panels)
    4. Additional section: entry section + built in cooling + exit section
    5. Material transportation: 02 belts in fiberglass ptfe coated, or lower in fiberglass and top in fine mash steel, 3200 mm wide
    6. Top belt supported with magnets all along the oven (in case of steel belt)
    7. Mechanical speed: 1-15 m/min
    8. 02 systems for belts driving, via large driven rolls
    9. 02 systems for belts tensioning, via pneumatic pistons
    10. 02 systems for belts guiding, via sensors and motors
    11. No 03 air fans driven with frequency converters, stepless adjustable to force the air throughout the web and through the burner
    12. One fan each section
    13. Air plenums from top and from bottom and aspiration through the felt, for complete passing of the air through the product
    14. Possibility of adjusting the air from top and air from bottom, to equalize the surfaces
    15. Possibility of inversion the air flow in each section (top to bottom or bottom to top)
    16. Possibility of closing the air on the side of the web, by hand operated baffles to avoid loss of efficiency; web width could go from 3000 mm to 2500 mm
    17. Heating by 3 gas burners of 250.000 kcal/h, modulating acting, pid controlled; one each section individually regulated in each section
    18. Temperature up to 220°c; fuel: natural gas, required pressure: 50 mbar at the burner
    19. Incorporated smokes extracting system in each section adjustable independently, to avoid any smokes out of the oven
    20. Large doors in each sides, for inspection
    21. Insulation made with sandwich panels filled with pressed rockwool
    22. Net filters into the air channel that could be cleaned without opening the oven
  3. Cooling Section
    1. Final built in cooling, equipped with two fans; length: 3000 mm
    2. Double belt for final calibration
    3. Fans with frequency converter to adjust the flow, directly controlled from operator panel
    4. System to close the air on the side of the web, to avoid loss of efficiency
  4. Controls and Electrical
    1. 01 main power board, to be located away from the line; plc and inverters by siemens
    2. 01 control desks with operators panels, located on the line
    3. Wiring via with profibus/ethernet, from plc to remote control desk
    4. Total heating power = 750.000 kcal/h
    5. Total electric energy installed = 80 kw
    6. Air flow is reversible in each section; it could be set in a way that the air is blowed from top and it is aspirated from bottom, or, backward; the regulation is independent for each section