公开(公告)号：JPH10246416A

公开(公告)日：1998-09-14

申请号：JP4502298

申请日：1998-02-26

Applicant: ABB RESEARCH LTD

Inventor： CARCER BRUNO ,  MILLARD JOHN ,  SCHMIDT VERENA DR ,  SELINGER ADRIAN DR

IPC: F23G7/00 ,  F23G5/00 ,  F23G5/16 ,  F23G5/32

Abstract: PROBLEM TO BE SOLVED: To enable lessening the amount of residual fly ash by synthesizing simply, easily, and at low cost such a product as may be added to fire grate ash or as may have use independent of others. SOLUTION: In a method for thermally treating fly dust 10 originating in waste-incinerating equipment the waste is burned on a fire grate 4 inside a combustion furnace 1 with evolution of flue gas 11 containing fire grate ash 19 and fly dust, fire grate ash 19 is extracted from a combustion furnace 1 having a primary combustor 7 and a secondary combustor 8 and treated further, fly dust accumulated inside a boiler 2 and inside a dust-filter apparatus 3 both disposed downstream is carried outside, and at least part of this fly dust is melted or sintered and at least part of the fly dust is led back into the high temperature region of the combustion furnace 1. At this time the temperature in the high temperature region is made higher than the melting temperature or sintering temperature of the fly dust 10 and the fly dust is made to remain in the high temperature region of the combustion furnace 1 for a sufficiently long time. By doing so the fly dust is vitrified or sintered at least partially.

公开(公告)号：AT199326T

公开(公告)日：2001-03-15

申请号：AT95810425

申请日：1995-06-23

Applicant: ABB RESEARCH LTD

Inventor： BUERGIN MARKUS ,  SCHMIDT VERENA DR ,  SIMON FRANZ-GEORG DR

IPC: B03B5/02 ,  B03B9/04 ,  B03C1/00 ,  B07B9/00

公开(公告)号：DE4423927A1

公开(公告)日：1996-01-11

申请号：DE4423927

申请日：1994-07-07

Applicant: ABB RESEARCH LTD

Inventor： BUERGIN MARKUS ,  SCHMIDT VERENA DR ,  SIMON FRANZ-GEORG DR

IPC: B03B5/02 ,  B03B9/04 ,  B03C1/00 ,  B07B9/00 ,  B09B5/00

公开(公告)号：DE19751854A1

公开(公告)日：1999-05-27

申请号：DE19751854

申请日：1997-11-22

Applicant: ABB RESEARCH LTD

Inventor： KWETKUS ANDREAS DR ,  SCHMIDT VERENA DR

IPC: B01D46/24 ,  F23J15/02 ,  F23J15/08 ,  B01D45/00 ,  B01D46/00 ,  F23G5/00 ,  F23J1/08

Abstract: Following release from the incinerator, the gases (7) are surrendered first to a boiler (2) and then to a low-temperature separator (7). Before the ash is surrendered to the boiler, the greater part pref. 95 per cent of the ash (8) is separated at high temperature from the gas in a molten state and is discharged as an inert glasslike product (16). The salt-based ash residues are further transported with the gas (7', 7) phase and are separated at low temperatures by a ceramic filter. The ash (8) transported with the effluent gases (7) from a municipal incinerator (1) consist of a combination of glass-forming ashes, and salt-based ashes containing alkaline and heavy metals.