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公开(公告)号：EP3409799B1
公开(公告)日：2021-01-27
申请号：EP18184007.5
申请日：2016-06-07
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公开(公告)号：EP3388744A1
公开(公告)日：2018-10-17
申请号：EP17166323.0
申请日：2017-04-12
申请人： Improbed AB
摘要： The invention relates to a system for recycling fluidized bed boiler bed material, comprising:
a. a bottom ash removal device for removing bed material from a fluidized bed boiler,
b. a mechanical classifier (10) comprising a mesh size from 200 to 1,000 µm designed to separate a coarse and a fine particle size fraction,
c. a magnetic separator (12) designed to magnetically classify the fine particle fraction from the mechanical classifier,
d. a device for recirculating the magnetic particle fraction into the boiler.
The invention allows effective recirculation and reuse of ilmenite bed material.-
公开(公告)号：EP3307918A2
公开(公告)日：2018-04-18
申请号：EP16727493.5
申请日：2016-06-07
申请人： Improbed AB
摘要： The invention relates to a method for starting up a fluidized bed boiler, such as a circulating fluidized bed (CFB) or a bubbling fluidized bed (BFB) boiler, for operation with a predetermined concentration of ilmenite particles in the bed material. The invention also relates to a method for pre-oxidizing ilmenite, to pre-oxidized ilmenite and to the use of pre-oxidized ilmenite in a fluidized bed boiler.
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公开(公告)号：EP3359877B1
公开(公告)日：2022-06-08
申请号：EP16801046.0
申请日：2016-11-07
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公开(公告)号：EP3359878A2
公开(公告)日：2018-08-15
申请号：EP16802139.2
申请日：2016-11-07
申请人： Improbed AB
CPC分类号： F23C10/00 , F23C10/26 , F23C10/32 , F23C2206/103
摘要： The invention relates to a bed management cycle for a fluidized bed boiler, comprising the steps of: a) providing fresh ilmenite particles as bed material to the fluidized bed boiler; b) carrying out a fluidized bed combustion process; c) removing at least one ash stream comprising ilmenite particles from the fluidized bed boiler; d) separating ilmenite particles from the at least one ash stream; e) recirculating separated ilmenite particles into the bed of the fluidized bed boiler. The invention also relates to a corresponding arrangement for carrying out fluidized bed combustion, comprising a fluidized bed boiler comprising ilmenite particles as bed material; and a system for removing ash from the fluidized bed boiler; wherein the arrangement further comprises a separator for separating ilmenite particles from the removed ash; and means for recirculating separated ilmenite particles into the bed of the fluidized bed boiler.
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公开(公告)号：EP3237801A1
公开(公告)日：2017-11-01
申请号：EP15810731.8
申请日：2015-12-17
申请人： Improbed AB
摘要： The invention is in the technical field of bubbling fluidized bed combustion and relates to the use of ilmenite particles with an average particle size between 0.1 mm and 1.8 mm as bed material for a bubbling fluidized bed (BFB) boiler with an excess air ratio (») below 1.3 and to a method for operating a bubbling fluidized bed (BFB) boiler, comprising carrying out the combustion process with a bubbling fluidized bed comprising ilmenite particles and setting the excess air ratio (») to a value below 1.3.
摘要翻译： 本发明属于鼓泡流化床燃烧技术领域，涉及平均颗粒尺寸在0.1-1.8mm之间的钛铁矿颗粒作为鼓风流化床（BFB）锅炉的床料，其过量空气比（λ ）低于1.3，并且涉及操作鼓泡流化床（BFB）锅炉的方法，包括用包含如权利要求1和4-5中任一项所定义的钛铁矿颗粒的鼓泡流化床进行燃烧过程; 并将过量空气比（λ）设定为低于1.3的值。
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