System and method for crosslinking a continuous mat of mineral and/or plant fibers

Patent metadata

Field	Value
Publication number	US-2025382224-A1
Application number	US-202318876954-A
Country	US
Kind code	A1
Filing date	Jun 20, 2023
Priority date	Jun 20, 2022
Publication date	Dec 18, 2025
Grant date	—

Abstract

A system for crosslinking a continuous mat of mineral and/or plant fibers, includes a crosslinking oven for the mat including at least one heating box, each heating box being connected to a combustion chamber. The crosslinking system further includes an injection system arranged outside the crosslinking oven and configured to inject hot air into at least one combustion chamber of a heating box, the hot air thus injected replacing a given fraction of hot air produced by at least one burner attached to the said at least one combustion chamber.

First claim

1 . A crosslinking system for a continuous mat of mineral and/or plant fibers, comprising a crosslinking oven for said mat including at least one heating box, each heating box being connected to a combustion chamber, and an injection system arranged outside the crosslinking oven and configured to inject hot air into at least one combustion chamber of a heating box, the hot air thus injected replacing a given fraction of hot air produced by at least one burner attached to said at least one combustion chamber.

2 . The crosslinking system according to claim 1 , wherein said fraction is between 2% and 40%.

3 . The crosslinking system according to claim 1 , wherein the injection system comprises a heater configured to heat ambient air to a given temperature.

4 . The crosslinking system according to claim 3 , wherein said given temperature is between 350° C. and 1000° C.

5 . The crosslinking system according to claim 3 , wherein the heater comprises at least one electric battery whose power is between 100 kW and 900 kW.

6 . The crosslinking system according to claim 1 , wherein the injection system is supplied with preheated air.

7 . The crosslinking system according to claim 6 , wherein at least part of the preheated air comes from a glass melting furnace and/or corresponds to hot recovery air.

8 . The crosslinking system according to claim 1 , wherein the injection system is connected to a hot air emergency exhaust positioned between said injection system and said crosslinking oven.

9 . The crosslinking system according to claim 1 , wherein the injection system is configured to inject hot air from outside the crosslinking oven.

10 . The crosslinking system according to claim 1 , wherein the injection system comprises a hot air supply line arranged between a hot air source arranged outside the crosslinking oven and the at least one combustion chamber.

11 . A manufacturing line for a continuous mat of mineral and/or plant fibers, comprising a fiberizing unit for a continuous mat of mineral and/or plant fibers, a conveyor for transporting the mat, and a crosslinking system according to claim 1 .

12 . A method for crosslinking a continuous mat of mineral and/or plant fibers, said method comprising crosslinking the continuous mat of mineral and/or plant fibers with the crosslinking system according to claim 1 .

13 . A method for manufacturing a continuous mat of mineral and/or plant fibers, said method comprising manufacturing the continuous mat of mineral and/or plant fibers by the manufacturing line according to claim 11 .

14 . The crosslinking system according to claim 2 , wherein said fraction is between 5% and 30%.

15 . The crosslinking system according to claim 14 , wherein said fraction is between 5% and 20%.

16 . The crosslinking system according to claim 3 , wherein the heater is an electrical heater.

17 . The crosslinking system according to claim 4 , wherein said given temperature is between 500° C. and 1000° C.

18 . The crosslinking system according to claim 17 , wherein said given temperature is between 700° C. and 800° C.

19 . The crosslinking system according to claim 5 , wherein the power is between 500 kW and 700 kW.

20 . The crosslinking system according to claim 19 , wherein power is substantially equal to 600 kW.

Assignees

• Saint Gobain Isover

Inventors

• Baudouin Bernard
• Charrel Michael

Classifications

• F27D11/02

  Ohmic resistance heating · CPC title

• C03C25/14

  Spraying · CPC title

• C03C25/1095

  to obtain coated fabrics · CPC title

• C03B37/04

  by using centrifugal force {, e.g. spinning through radial orifices; Construction of the spinner cups therefor (bonder application C03C25/00)} · CPC title

• F27D17/17

  for preheating fluids, e.g. air or gases · CPC title