公开(公告)号：US20240158277A1

公开(公告)日：2024-05-16

申请号：US18550334

申请日：2022-03-14

Applicant: ROCKWOOL A/S

Inventor： Lars Elmekilde HANSEN

IPC: C03B5/235 ,  C03B5/12 ,  F23C5/32 ,  F23L7/00

CPC classification number: C03B5/2353 ,  C03B5/12 ,  F23C5/32 ,  F23L7/007

Abstract: The present invention provides an apparatus and a method for operating a cyclone combustion furnace using gaseous fuel.

公开(公告)号：US20230075323A1

公开(公告)日：2023-03-09

申请号：US17796630

申请日：2021-01-29

Applicant: ROCKWOOL A/S

Inventor： Lars Elmekilde HANSEN ,  Ejvind Voldby LARSEN

IPC: C03B3/02 ,  C03B5/12 ,  C03B5/235 ,  C03B37/022 ,  C03C13/06 ,  C03C3/097

Abstract: The invention provides a method to form a melt for making man-made vitreous fibres, in which mineral raw material is melted in a gas-fired cyclone furnace and the mineral charge comprises a material that comprises metallic aluminium.

公开(公告)号：US20240018028A1

公开(公告)日：2024-01-18

申请号：US18253290

申请日：2021-11-19

Applicant: ROCKWOOL A/S

Inventor： Lars Elmekilde HANSEN ,  Haosheng ZHOU

IPC: C03B5/235 ,  C03B5/12 ,  C03B37/04 ,  C03C13/06

CPC classification number: C03B5/2353 ,  C03B5/12 ,  C03B37/04 ,  C03C13/06 ,  C03B2211/30

Abstract: The invention relates to a method of preparing a mineral melt in a cupola furnace that uses at least one plasma torch to provide heat energy to the furnace. The plasma torch uses nitrogen, carbon monoxide, carbon dioxide, or a mixture thereof as the carrier gas. The invention also relates to a cupola furnace for the preparation of the mineral melt, and the use of a plasma torch in a cupola furnace to reduce the amount of NOx and/or hydrogen in the furnace off-gas.

公开(公告)号：US20230062262A1

公开(公告)日：2023-03-02

申请号：US17796626

申请日：2021-01-29

Applicant: ROCKWOOL A/S

Inventor： Lars Elmekilde HANSEN ,  Ejvind Voldby LARSEN

IPC: C03B3/00 ,  C03C13/06 ,  C03C3/097 ,  C03B5/04 ,  C03B5/12 ,  C03B5/235 ,  C03B37/022

Abstract: The invention provides methods of making man-made vitreous fibres (MMVF), comprising incorporating metallic aluminium into the mineral charge, with the benefit of reduced shrinkage of consolidated MMVF products.

公开(公告)号：US20230061070A1

公开(公告)日：2023-03-02

申请号：US17796588

申请日：2021-01-29

Applicant: ROCKWOOL A/S

Inventor： Lars Elmekilde HANSEN ,  Ejvind Voldby LARSEN

IPC: C03C13/00 ,  C03B37/02 ,  C03B3/00 ,  C03B5/027 ,  C03C14/00

Abstract: The invention provides methods of making man-made vitreous fibres (MMVF), comprising providing an electric furnace having molybdenum electrodes, providing mineral raw material, wherein the mineral raw material comprises (a) particulate material that comprises metallic aluminium and (b) other mineral component, introducing the mineral raw material into the furnace, melting the mineral raw material to form a mineral melt, and forming MMVF from the mineral melt, with the benefit of reduced shrinkage of consolidated MMVF products.