公开(公告)号：US5248255A

公开(公告)日：1993-09-28

申请号：US768889

申请日：1992-06-08

申请人： Toshimichi Morioka ,  Yaushisa Hirano ,  Akira Iwahashi ,  Masataka Matsuo ,  Kazuyoshi Kurayoshi ,  Akio Ishii

发明人： Toshimichi Morioka ,  Yaushisa Hirano ,  Akira Iwahashi ,  Masataka Matsuo ,  Kazuyoshi Kurayoshi ,  Akio Ishii

IPC分类号： F23D14/56 ,  F27B9/24 ,  F27B9/30 ,  F27B9/36 ,  F27D7/04 ,  F27D99/00

CPC分类号： F27D99/0001 ,  F27B9/2407 ,  F27B9/30 ,  F27B9/36 ,  F27D7/04 ,  F27D99/0075 ,  F27D2099/0058 ,  F27D99/0033 ,  F27D99/007

摘要： The present invention enables a tile or other ceramic wares to have a deep reduced color. A roller hurse kiln 210 includes rollers 214, and a burner mounted in a firing zone adjacent to the outlet so as to provide a reducing gas. The burner has gas injection holes. The injection holes may be circular holes having a diameter of 1 to 5 mm or may be in the form of a slit having a width of 1 to 5 mm. The burner is located 15 to 80 mm above a material to be fired.