Shoddy Felt + PP

3D Model

COMPOSITION

Ovens specific to produce hard pads from shoddy and PP fibers or with phenolic powder. Equipped with steel belts, heavy type. The oven is equipped with high flow and high pressure fans which force a large volume of the air through the material, even through very heavy webs. After oven one compressing calender is installed to compact the felt.

  1. ENTRY ZONE : it will contains various belts mechanism, that will remain in cold atmosphere
  2. SECTION 1 : equipped with fan, burner, filters
  3. SECTION 2 : equipped with fan, burner, filters
  4. SECTION 3 : equipped with fan, burner, filters
  5. SECTION 4 : number of sections following the production
  6. EXIT ZONE : it will contains various belts mechanism, that will remain in cold atmosphere
  7. AIR EXHAUST FAN : to remove smokes from oven
  8. COOLED CALENDER : to compress the web in exit from the oven
  9. COOLING SECTION
  10. FAN OF THE SECTION : at variable speed
  11. BURNER OF THE SECTION : industrial type, world wide assisted and equipped with filters
  12. FAN OF COOLING SECTION

OTHER INFORMATION

AIR FLOW IN OVEN FOR SHODDY FELT

AIR PRESSURE IN ONE SIDE + AIR VACUUM IN THE OPPOSITE IS THE CLUE OF WEBS BONDING



AIR FLOW DIRECTION COULD BE EASILY ADJUSTED FOLLOWING THE PRODUCT

Optimal bonding of the web is obtained by a combination of positive pressure in one side and negative in the opposite.
In this way all air moved by the fan is forced to penetrate totally the product and therefore it reaches a fast and
uniform bonding. Bombi Meccanica developed unique system to distribute homogenously the air from left to right, thanks to
specific nozzles where the air pressure is equalized and well distributed. This permits the correct bonding is any working
width, with installation made up to 5,5 m wide. In order to work with any kind of web with different weight and density,
the sense of the air could be adjusted by the operator in easy way : or manually or electronically from the control panel.
Air can be distributed top to bottom, bottom to top, or alternate way.

WEB THICKNESS REGULATION



2 HOT SECTION OVEN + COOLING

Webs coming from a carding + cross lapper system or from an air lay must be protected and controlled in thickness,
in order to meet final user demand. For this reason a fiber bat is held between two conveyors, before to enter into
the oven and all along the process . In this way the top belt will prevent fiber movement and will adjust final thickness.
Belts distance is regulated gradually in various points, with motor driven screw jacks. They are controlled from the
touch panel so the operator can adjust easily in any moment following the final product. The compression is gentle
and gradual, thanks to various points of regulation located along the oven length
– ADDING MORE SECTION, MORE REGULATING POINTS WILL COME –

MOTOR DRIVEN SCREW JACKS



Motors for belts distance adjusting are located out of the oven in clean and cold atmosphere

BELTS



Following the products our oven could install different belts and different combinations. our great experience guide us in
the choose of various materials and mashes
fiberglass ptfe coated, steel, pps, peek, duofill , hybrid are among the more common used type

AIR FILTER

EASY TO CLEAN FILTERS



FOR NO STOP PRODUCTION

Air stream may remove fibers and dust from the web and they will reach burner zone with
risk of contamination, burner damage, fire.
To prevent this, air flow is continually filtered before reach the burner at each cycle. Each burner has 3 set of
filters that could be cleaned from outside of the oven, without doors opening.

DOORS



Oven is equipped with various doors that are used to access to the internal parts, for cleaning and maintenance.
The sealing of the smoke is made with silicon gasket. To get the optimum sealing the doors are equipped with 4 locks
(2 on the left, 2 on the right). These, jointed with special hinges permit a parallel movement of the door that will
close perfectly with oven frame.

TELESERVICE



Production site, located in any place of the world, is connected via internet with our systems in Italy.
Customer is assisted in real time for any kind of problems, modifications, future adding without the need
to send locally a technician.

ENERGY RECOVERING



Bombi Meccanica developed 3 steps for heat recover, accordingly with customer needs and local enviromental.
THEY CAN BE RETRO-ADDED IN ANY OVENS

FIBERSRecycled fibers, shoddy, PP, BiCo, Phenolic powder
WORKING WIDTH2.000-3.500mm
WEIGHT RANGE500-3.000gsm
WEB THICNESS BEFORE THE OVENUp to 1.500mm
WEB THICNESS AFTER THE OVENUp to 100mm
PRODUCTION SPEEDUp to 30m/min
HEATINGDirect gas burners (with natural or lgp gas), thermal oil electric
OVEN SECTION LENGHT3.300mm

Lines specific to produce hard pads from shoddy and PP fibers. Equipped with steel belts, heavy type.
The oven is equipped with high flow and high pressure fans which force a large volume of the air through
the material, even through very heavy webs. After oven one compressing calender is installed to compact the
felt. After calender and air cooler is provided. Line could produce pads or rolls. Options available on request:
– Inversion of air flow from control panel
– Closing of the air on the sides of the web from control panel.

OVEN EXIT



Exit of the oven with calender and cooler

OVEN EXIT



Chilled calender and cooler installed after the oven


OVEN EXIT



Cooler after the calender

OVEN ENTRY



Web entry into the oven between two steel belts


OVEN ENTRY



Entry of the oven installed after a bypassable needle punching M/C

OVEN EXIT



Chilled calender after the oven


OVEN EXIT



Cooler and calender

END OF LINE



Final product after the cut


END OF LINE



Cutting machine after the cooler

APPLICATION OF THE PRODUCT



HARD SHODDY PADS




HARD/SOFT SHODDY PADS



HARD SHODDY PAD




SOFT SHODDY PAD



HARD SHODDY PAD




HARD SHODDY PAD LAMINATED



APPLICATION OF THE PRODUCT




HARD SHODDY PAD