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Patent Agency Ranking1.发明专利
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
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.
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公开(公告)号：NO980843L
公开(公告)日：1998-08-31
申请号：NO980843
申请日：1998-02-27
Applicant: ABB RESEARCH LTD
Inventor： CARCER BRUNO , MILLARD JOHN , SCHMIDT VERENA , SELINGER ADRIAN
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公开(公告)号：NO980843D0
公开(公告)日：1998-02-27
申请号：NO980843
申请日：1998-02-27
Applicant: ABB RESEARCH LTD
Inventor： CARCER BRUNO , MILLARD JOHN , SCHMIDT VERENA , SELINGER ADRIAN
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公开(公告)号：DE19849021A1
公开(公告)日：2000-04-27
申请号：DE19849021
申请日：1998-10-23
Applicant: ABB RESEARCH LTD
Inventor： MILLARD JOHN , SCHMIDT VERENA
Abstract: Corrosion is normally caused by the formation of free chlorine as alkali chlorides are burnt. However, in the presence of excess sulfur dioxide the chlorides are converted to sulfates. The installation shown is basically conventional with electrostatic collector (11), chlorides washer (13) and sulfate removal washer (14). Dust-free, hydrogen chloride reduced, gas is now tapped off before the sulfate washer, warmed in heat exchanger (17) and mixed with secondary air (19). The amount of gas added is then arranged to be such that the sulfur dioxide to hydrogen chloride ratio in the combustion zone is greater than 1.
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公开(公告)号：NO980843A
公开(公告)日：1998-08-31
申请号：NO980843
申请日：1998-02-27
Applicant: ABB RESEARCH LTD
Inventor： CARCER BRUNO , MILLARD JOHN , SCHMIDT VERENA , SELINGER ADRIAN
CPC classification number: F23G5/002 , F23G5/16 , F23G5/32 , F23G2202/104 , F23G2202/106 , F23G2209/30 , F23J2217/102
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