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1. 发明授权

US10927432B2 Use of pre-oxidized ilmenite in fluidized bed boilers 有权
公开(公告)号：US10927432B2
公开(公告)日：2021-02-23
申请号：US15735429
申请日：2016-06-07
申请人： Improbed AB
发明人： Bengt-Ake Andersson , Fredrik Lind , Henrik Thunman
IPC分类号： C22B34/00 , C22B34/12 , F23C10/18
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.

2. 发明授权

US10794588B2 Apparatuses for controlling heat for rapid thermal processing of carbonaceous material and methods for the same 有权
公开(公告)号：US10794588B2
公开(公告)日：2020-10-06
申请号：US16026367
申请日：2018-07-03
申请人： Ensyn Renewables, Inc.
发明人： Sathit Kulprathipanja , Daniel N. Myers , Paolo Palmas
IPC分类号： F23C10/18 , C10B49/22 , C10B53/02 , F27D9/00
摘要： Embodiments of apparatuses and methods for controlling heat for rapid thermal processing of carbonaceous material are provided herein. The apparatus comprises a reactor, a reheater for forming a fluidized bubbling bed comprising an oxygen-containing gas, inorganic heat carrier particles, and char and for burning the char into ash to form heated inorganic particles. An inorganic particle cooler is in fluid communication with the reheater. The inorganic particle cooler comprises a shell portion and a tube portion. The inorganic particle cooler is configured such that the shell portion receives a portion of the heated inorganic particles and the tube portion receives a cooling medium for indirect heat exchange with the portion of the heated inorganic particles to form partially-cooled heated inorganic particles.

3. 发明授权

US10641482B2 Methods for operating a furnace 有权
公开(公告)号：US10641482B2
公开(公告)日：2020-05-05
申请号：US14833294
申请日：2015-08-24
申请人： IMERYS USA, INC.
发明人： Billie Leach , Thomas Landon
IPC分类号： F23J7/00 , F23J9/00 , C09C1/40 , F23C10/18 , F23C10/28 , F23C10/00 , F23C10/30 , F23C10/01 , F23G5/30
CPC分类号： F23J7/00 , C09C1/402 , F23C10/00 , F23C10/01 , F23C10/18 , F23C10/28 , F23C10/30 , F23G5/30 , F23J9/00 , C01P2004/61 , C01P2004/62 , C01P2006/80 , F23C2206/00 , F23G2200/00 , F23G2207/60 , F23K2201/505
摘要： A method for combusting fuel in the presence of an alkali-containing material may include introducing fuel into a furnace configured to combust the fuel. The method may also include introducing ball clay having a moisture content of at least about 5% by weight into the furnace, and heating at least a portion of the fuel and ball clay, such that at least a portion of the ball clay is at least partially calcined, and the at least partially calcined ball clay adsorbs at least a portion of alkali present in the furnace.

4. 发明申请

US20190170347A1 Apparatuses for Controlling Heat for Rapid Thermal Processing of Carbonaceous Material and Methods for the Same 审中-公开
公开(公告)号：US20190170347A1
公开(公告)日：2019-06-06
申请号：US16026367
申请日：2018-07-03
申请人： Ensyn Renewables, Inc.
发明人： Sathit Kulprathipanja , Daniel N. Myers , Paolo Palmas
IPC分类号： F23C10/18 , C10B53/02 , C10B49/22
摘要： Embodiments of apparatuses and methods for controlling heat for rapid thermal processing of carbonaceous material are provided herein. The apparatus comprises a reactor, a reheater for forming a fluidized bubbling bed comprising an oxygen-containing gas, inorganic heat carrier particles, and char and for burning the char into ash to form heated inorganic particles. An inorganic particle cooler is in fluid communication with the reheater. The inorganic particle cooler comprises a shell portion and a tube portion. The inorganic particle cooler is configured such that the shell portion receives a portion of the heated inorganic particles and the tube portion receives a cooling medium for indirect heat exchange with the portion of the heated inorganic particles to form partially-cooled heated inorganic particles.

5. 发明授权

US10174936B2 Circular fluidizing bed combustion system with uniform airflow distributing device 有权
公开(公告)号：US10174936B2
公开(公告)日：2019-01-08
申请号：US15563456
申请日：2016-10-29
申请人： GUANGDONG UNIVERSITY OF TECHNOLOGY
发明人： Xiaozhou Liu , Yu Zhang , Wenxing Liu
IPC分类号： F23C10/12 , F23C10/18 , F23C10/20 , F23C7/00 , F23C10/02 , F26B3/08 , F23J15/02 , F23C10/24 , F23G5/30 , F23J3/02
摘要： A circular fluidizing bed combustion system with uniform airflow distributing device is provided. The system comprises a fluidizing bed and a uniform airflow distributing device. The fluidizing bed is comprised of a fluidizing bed boiler body, an airflow distributing plate and a plurality of air caps, wherein, the airflow distributing plate is provided inside the fluidizing bed boiler body and divides the inner space of the fluidizing bed boiler body into a fluidizing chamber which is located in the upper portion of the boiler body and an air chamber which is located in the lower portion of the boiler body, and the plurality of air caps are arranged on the airflow distributing plate for injecting the fluidizing air into the fluidizing chamber. The inner space of the air chamber is divided into a distributing chamber that is located under the airflow distributing plate and an air inlet chamber that is located on one side of the distributing chamber by means of a perforated plate. The distributing chamber is comprised of a front wall, two side walls, a top wall that extends upwards obliquely from the upside of the front wall, and a bottom wall extends downwards obliquely from the downside of the front wall. A first guide plate, a second guide plate and a third guide plate are installed in the distributing chamber. This system makes the flow of the fluidizing air entered into the fluidizing chamber through each air cap uniform, and enhances the combusting efficiency of the coal powder in the fluidizing chamber.

6. 发明授权

US10006632B2 Methods and apparatus for oxidation of unburnts 有权
公开(公告)号：US10006632B2
公开(公告)日：2018-06-26
申请号：US14478587
申请日：2014-09-05
申请人： ALSTOM Technology Ltd
发明人： Marc Ajhar , Jörgen Grubbström , Corinne Beal
IPC分类号： F23J15/00 , F23C10/00 , C10J3/72 , B01J8/26 , F23C10/18 , F23L7/00 , F23C99/00 , F23C13/00 , F23G7/06 , F23G7/07
CPC分类号： F23J15/00 , B01J8/26 , C10J3/725 , F23C10/005 , F23C10/18 , F23C13/00 , F23C99/00 , F23C2900/99008 , F23G7/06 , F23G7/07 , F23L7/007 , Y02E20/12 , Y02E20/344 , Y02E20/346
摘要： A method and apparatus for treatment of unburnts utilizing oxygen carrier particles, which may be CLOU particles, oxidized in an air reactor and transmitted to a post oxidation reactor as shown in FIG. 2. A flue gas stream containing unburnts is injected into post oxidation reactor wherein unburnts are oxidized by oxygen supplied by oxygen carriers. Reduced oxygen carriers are separated from post oxidation reactor and transmitted back to air reactor for re-oxidation. An embodiment may include a post oxidation chamber, which may be catalytic, receiving a portion of flue gas stream and oxygen from a flue gas stream of post oxidation reactor.

7. 发明授权

US09772104B2 Large-size circulating fluidized bed boiler, air distributor and air distributor assembly 有权
公开(公告)号：US09772104B2
公开(公告)日：2017-09-26
申请号：US14412270
申请日：2013-12-24
申请人： INSTITUTE OF ENGINEERING THERMOPHYSICS, CHINESE ACADEMY OF SCIENCES
发明人： Qinggang Lv , Ming Gao , Guoliang Song , Xiaofang Wang , Yunkai Sun , Dongyu Wang , Tuo Zhou
IPC分类号： F22B31/00 , F23C10/10 , F23C10/18 , F23C10/20
CPC分类号： F23C10/10 , F22B31/003 , F22B31/0061 , F22B31/0084 , F23C10/18 , F23C10/20
摘要： The present invention provides a circulating fluidized bed boiler, comprising: furnace side walls; a ceiling; an air distribution plate provided at a bottom of a furnace; and at least one air distribution cone provided on the air distribution plate, wherein each air distribution cone extends upwards from the air distribution plate into an interior of the furnace and has a shape gradually tapered in an extending direction, cone side walls which form the air distribution cone are provided with secondary air ports, the cone side walls are separated from the furnace side walls, and a furnace combustion space is formed and surrounded by the ceiling, the furnace side walls, the air distribution plate, and the cone side walls. The present invention further relates to an air distributor for a circulating fluidized bed boiler, the air distributor being provided on an air distribution plate of the boiler, wherein the air distributor is in a form of an air distribution cone, which extends upwards from the air distribution plate into an interior of a furnace to form a shape gradually tapered in an extending direction, and secondary air ports are formed in air distribution cone side walls forming the air distribution cone. The present invention also relates to an air distributor assembly for a circulating fluidized bed boiler.

8. 发明授权

US09518730B2 Large-scale circulating fluidized bed boiler 有权
标题翻译：大型循环流化床锅炉
公开(公告)号：US09518730B2
公开(公告)日：2016-12-13
申请号：US13983008
申请日：2012-01-19
申请人： Qinggang Lu , Ming Gao , Yunkai Sun , Guoliang Song , Xiaofang Wang , Yongjie Na , Dongyu Wang , Haigang Wang
发明人： Qinggang Lu , Ming Gao , Yunkai Sun , Guoliang Song , Xiaofang Wang , Yongjie Na , Dongyu Wang , Haigang Wang
IPC分类号： F22B31/00 , F23C10/10 , F23J15/02 , F23C10/18
CPC分类号： F22B31/0084 , F23C10/10 , F23C10/18 , F23J15/027 , F23J2217/40
摘要： A large-size circulating fluidized bed boiler, comprising: a furnace having a vertical furnace center line; and at least two groups of cyclones, each cyclone of each group of cyclones having an inlet gas pass communicated with the furnace. A furnace cross section formed by outer sidewalls and located at the inlet gas pass of the cyclone is a polygon having 2×n sides, and n is a positive integer greater than 1. The polygon is axially symmetric with respect to a perpendicular bisector of each side of the polygon, and when n is 2, the polygon is a square. Triangles formed by two endpoints of an inlet of the inlet gas pass of each cyclone at the cross section and an intersection of the furnace center line and the cross section are congruent. A single flow field in communication with each of the inlet is formed in the cross section.
摘要翻译：一种大型循环流化床锅炉，包括：具有垂直炉中心线的炉; 和至少两组旋风分离器，每组旋风分离器的每个旋风分离器具有与炉连通的入口气体通道。由外侧壁形成并位于旋风分离器的入口气体通道处的炉横截面是具有2×n侧的多边形，n是大于1的正整数。多边形相对于每个的垂直平分线轴对称多边形的边，当n为2时，多边形为正方形。每个旋风分离器的入口气体通道的两个端点在横截面上形成的三角形和炉中心线与横截面的交点是一致的。在横截面中形成与每个入口连通的单个流场。

9. 发明授权

US09518688B2 Expansion joint in a vertical channel 有权
标题翻译：垂直通道中的膨胀节
公开(公告)号：US09518688B2
公开(公告)日：2016-12-13
申请号：US14365162
申请日：2013-01-07
申请人： FOSTER WHEELER ENERGIA OY
发明人： Pentti Lankinen
IPC分类号： E03B7/10 , F16L27/08 , F23J13/04 , F23C10/18 , F16L51/02
CPC分类号： F16L27/0808 , F16L51/021 , F23C10/18 , F23J13/04 , F23J2213/204 , Y10T29/49826
摘要： An expansion joint in a vertical channel suitable for conducting hot particles. The expansion joint includes an upper channel portion including a lower end portion with a lower edge. A lower channel portion is sealingly connected by a flexible element connected on an outer side of the vertical channel. The lower channel portion includes an upper end portion with a horizontally extending upper plane. In a predetermined vertical level range, the upper end portion telescopically overlaps the lower end portion in a spaced relationship, to permit relative axial and lateral movements of the upper channel portion and the lower channel portion, whereby the upper plane is at a higher level than the lower edge. A sealing ring, including mutually connected sealing blocks positioned on an outer circumference of the lower end portion, is arranged on the upper plane.
摘要翻译：在垂直通道中的膨胀接头，适用于传导热颗粒。膨胀接头包括上通道部分，其包括具有下边缘的下端部分。下通道部分通过连接在垂直通道的外侧上的柔性元件密封连接。下通道部分包括具有水平延伸的上平面的上端部分。在预定的垂直水平范围内，上端部以可分开的关系可伸缩地与下端部重叠，以允许上通道部分和下通道部分相对的轴向和横向运动，由此上平面处于比下边缘。包括位于下端部的外周上的相互连接的密封块的密封环设置在上平面上。

10. 发明申请

US20150330622A1 FLUIDIZED BED BOILER AND METHOD FOR ENHANCING FURNACE EFFICIENCY OF THE SAME 审中-公开
标题翻译：流化床锅炉及其提高炉膛效率的方法
公开(公告)号：US20150330622A1
公开(公告)日：2015-11-19
申请号：US14709636
申请日：2015-05-12
申请人： CHUNG YUAN CHRISTIAN UNIVERSITY
发明人： Chien-Song CHYANG
IPC分类号： F23C10/28 , F23C9/00 , F23C10/18
CPC分类号： F23C9/00 , F22B31/0007 , F23C10/18 , F23C10/28 , F23N1/022 , F23N5/006 , F23N2041/10 , Y02E20/344
摘要： A method for enhancing furnace efficiency of a fluidized bed boiler is provided. The fluidized bed boiler includes a boiler body for carrying out fuel combustion in a fluidized bed thereof; a fluidized gas inlet for inputting an oxygen-containing fluidized gas into the boiler body to fluidize a boiler bed and facilitate the fuel combustion; a steam outlet for outputting a steam resulting from the fuel combustion from the boiler body; and a flue-gas exhaust for emitting a flue gas resulting from the fuel combustion from the boiler body. The method includes steps of: detecting an oxygen concentration of the flue gas; feeding a portion of the flue gas back to the fluidized gas inlet; and dynamically adjusting a flow rate of the feeding fluidized gas according to oxygen concentrations of the flue gas and the feeding fluidized gas to achieve automatic control of the fluidized bed boiler.
摘要翻译：提供了一种提高流化床锅炉炉膛效率的方法。流化床锅炉包括用于在其流化床中进行燃料燃烧的锅炉本体; 用于将含氧流化气体输入到锅炉主体中以流化锅炉床并促进燃料燃烧的流化气体入口; 蒸汽出口，用于输出来自锅炉主体的燃料燃烧产生的蒸汽; 以及用于从锅炉本体燃烧燃料产生的烟道气的废气排气。该方法包括以下步骤：检测烟气的氧浓度; 将一部分烟道气送回到流化气体入口; 并根据烟气和进料流化气体的氧浓度动态调整进料流化气体的流量，实现流化床锅炉的自动控制。

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