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公开(公告)号：US06966508B2
公开(公告)日：2005-11-22
申请号：US10743978
申请日：2003-12-23
CPC分类号： B02C15/00 , B02C2015/002 , B07B7/08
摘要： A system for balancing and controlling the distribution of pulverized coal into multiple equal diameter outlet pipes of coal pulverizers for improving boiler performance. The device includes a plurality of flow control elements, one flow control element for each outlet pipe, all positioned a pre-determined distance upstream of the outlet pipes. Each flow control element is mounted on an independent adjustment mechanism and is thereby adjustable in position relative its corresponding outlet pipe to selectively vary the wake of the downstream coal particulate flow relative to primary air flow. The method of the present invention is practiced by monitoring coal particulate flow at the outlet pipes relative to primary air flow or individual flame characteristics, and then compensating for noted imbalances by selectively adjusting the flow control elements, thereby balancing and controlling the distribution of coal and improving combustion efficiency.
摘要翻译： 一种用于平衡和控制煤粉分配到煤粉机多个等直径出口管道以提高锅炉性能的系统。 该装置包括多个流量控制元件，用于每个出口管的一个流量控制元件全部位于出口管上游的预定距离。 每个流量控制元件安装在独立的调节机构上，从而相对于其对应的出口管调节位置，以选择性地改变下游煤颗粒流相对于一次空气流的尾流。 本发明的方法是通过监测出口管上相对于一次空气流或单个火焰特性的煤颗粒流动，然后通过选择性地调节流量控制元件补偿所引起的失衡，由此平衡和控制煤的分布， 提高燃烧效率。
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公开(公告)号：US07549382B2
公开(公告)日：2009-06-23
申请号：US11385016
申请日：2006-03-20
CPC分类号： F23K1/00 , B02C2015/002 , F23K2201/1006
摘要： An improved apparatus for on-line coal flow control in vertical spindle mills comprising a plurality of independently adjustable flow control elements and positioning rods that adjust the positioning of those flow control elements. Each flow control element is positioned within the discharge turret of the vertical spindle mill along the outer wall of the discharge turret proximate the entrance to its corresponding coal outlet pipe. The adjustable rods are seated on the side of the discharge turret of the coal pulverizer and are connected to the flow control element horizontally. The flow control elements can be independently rotated by +/−90 degrees about the positioning rod axis, and can also be moved back and forth in the horizontal plane. Therefore, each flow control element has two degrees-of-freedom: rotational and linear displacements. The apparatus improves boiler performance by making it possible to operate the boiler with reduced pollutant levels (e.g. NOx, CO) and increased combustion efficiency.
摘要翻译： 一种用于垂直主轴铣床中的在线煤流控制的改进装置，包括多个可独立调节的流量控制元件和调节这些流量控制元件的定位的定位杆。 每个流量控制元件位于垂直主轴磨机的排放转台内，沿排气塔的外壁靠近其对应的煤出口管的入口。 可调节的杆位于煤粉碎机的排放转台的侧面，并且水平地连接到流量控制元件。 流量控制元件可以围绕定位杆轴线独立地旋转+/- 90度，并且还可以在水平面中来回移动。 因此，每个流量控制元件具有两个自由度：旋转和线性位移。 该装置通过使得可以以降低的污染物水平（例如NOx，CO）和提高的燃烧效率来操作锅炉来提高锅炉性能。
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公开(公告)号：US08181584B2
公开(公告)日：2012-05-22
申请号：US12456854
申请日：2009-06-23
CPC分类号： F23K1/00 , B02C2015/002 , F23K2201/1006 , F23K2201/101 , F23K2201/30
摘要： An improved apparatus for on-line coal flow control in vertical spindle mills comprising a plurality of independently adjustable flow control elements and positioning rods that adjust the positioning of those flow control elements. Each flow control element is positioned within the discharge turret of the vertical spindle mill along the outer wall of the discharge turret proximate the entrance to its corresponding coal outlet pipe. The adjustable rods are seated on the side or top of the discharge turret of the coal pulverizer and are connected to the flow control element horizontally or vertically as the case may be. The flow control elements can be independently rotated by +/−90 degrees about the positioning rod axis, moved back and forth in the horizontal plane, and can also be moved up and down in the vertical plane. Therefore, each flow control element has three degrees-of-freedom: one rotational and two linear displacements. The apparatus improves boiler performance by making it possible to operate the boiler with reduced pollutant levels (e.g. NOx, CO) and increased combustion efficiency. Automated computer control of the control surfaces is contemplated.
摘要翻译： 一种用于垂直主轴铣床中的在线煤流控制的改进装置，包括多个可独立调节的流量控制元件和调节这些流量控制元件的定位的定位杆。 每个流量控制元件位于垂直主轴磨机的排放转台内，沿排气塔的外壁靠近其对应的煤出口管的入口。 可调节的杆位于煤粉碎机的排放转台的侧面或顶部，并且根据情况可水平或垂直地连接到流量控制元件。 流量控制元件可以围绕定位杆轴线独立地旋转+/- 90度，在水平面中前后移动，并且还可以在垂直平面中上下移动。 因此，每个流量控制元件具有三个自由度：一个旋转和两个线性位移。 该装置通过使得可以以降低的污染物水平（例如NOx，CO）和提高的燃烧效率来操作锅炉来提高锅炉性能。 设想控制面的自动计算机控制。
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公开(公告)号：US20100000450A1
公开(公告)日：2010-01-07
申请号：US12456854
申请日：2009-06-23
CPC分类号： F23K1/00 , B02C2015/002 , F23K2201/1006 , F23K2201/101 , F23K2201/30
摘要： An improved apparatus for on-line coal flow control in vertical spindle mills comprising a plurality of independently adjustable flow control elements and positioning rods that adjust the positioning of those flow control elements. Each flow control element is positioned within the discharge turret of the vertical spindle mill along the outer wall of the discharge turret proximate the entrance to its corresponding coal outlet pipe. The adjustable rods are seated on the side or top of the discharge turret of the coal pulverizer and are connected to the flow control element horizontally or vertically as the case may be. The flow control elements can be independently rotated by +/−90 degrees about the positioning rod axis, moved back and forth in the horizontal plane, and can also be moved up and down in the vertical plane. Therefore, each flow control element has three degrees-of-freedom: one rotational and two linear displacements. The apparatus improves boiler performance by making it possible to operate the boiler with reduced pollutant levels (e.g. NOx, CO) and increased combustion efficiency. Automated computer control of the control surfaces is contemplated.
摘要翻译： 一种用于垂直主轴铣床中的在线煤流控制的改进装置，包括多个可独立调节的流量控制元件和调节这些流量控制元件的定位的定位杆。 每个流量控制元件位于垂直主轴磨机的排放转台内，沿排气塔的外壁靠近其对应的煤出口管的入口。 可调节的杆位于煤粉碎机的排放转台的侧面或顶部，并且根据情况可水平或垂直地连接到流量控制元件。 流量控制元件可以围绕定位杆轴线独立地旋转+/- 90度，在水平面中前后移动，并且还可以在垂直平面中上下移动。 因此，每个流量控制元件具有三个自由度：一个旋转和两个线性位移。 该装置通过使得可以以降低的污染物水平（例如NOx，CO）和提高的燃烧效率来操作锅炉来提高锅炉性能。 设想控制面的自动计算机控制。
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5.发明授权Adjustable flow control elements for balancing pulverized coal flow at coal pipe splitter junctions 有权可调节的流量控制元件，用于平衡煤管分流器接合处的煤粉流公开(公告)号：US06789488B2
公开(公告)日：2004-09-14
申请号：US10258630
申请日：2002-10-24
申请人： Edward Kenneth Levy , Ali Yilmaz , Harun Bilirgen
发明人： Edward Kenneth Levy , Ali Yilmaz , Harun Bilirgen
IPC分类号： F23L1300
CPC分类号： F23K3/02 , F23K2203/006 , F23K2203/105 , F23K2203/201
摘要： An adjustable device installed at the inlet of conventional junctions/splitters (116) for on-line control of the distribution of coal among the outlet pipes is herein disclosed. The device includes a plurality of flow control elements (60) each positioned upstream of a plurality of flow channels in the riffler (50) for directing coal flow to the outlet pipes. Each flow control element preferably comprises a rounded convex edge leading to straight tapered sides (FIG. 9). The surfaces of the sides may be roughened or textured (63) for promoting turbulent boundary layers (FIG. 9). In addition, conventional fixed or variable orifices may be used in combination with the flow control elements for balancing primary air flow rates. The device allows fine-adjustment control of coal flow rates when used in combination with the slotted riffler, yet it has negligible effect on the distribution of primary air. The combination of the riffler assembly and the coal flow control elements (60) results in closely balanced coal flow. Balanced coal flow is imperative to the optimization of the operation of pulverized coal boiler systems (i.e. reduced pollutant emissions, improved combustion efficiency).
摘要翻译： 本文公开了一种可调节装置，其安装在常规接合/分离器（116）的入口处，用于在出口管中煤分配的在线控制。 该装置包括多个流量控制元件（60），每个流量控制元件（60）均位于消音器（50）中的多个流动通道的上游，用于将煤流引导至出口管。 每个流量控制元件优选地包括通向直锥形侧面的圆形凸缘（图9）。 侧面的表面可以被粗糙化或纹理化（63）以促进湍流边界层（图9）。 此外，传统的固定或可变孔可以与流量控制元件结合使用，以平衡一次空气流速。 该设备允许在与开槽式混合机组合使用时对煤流速进行微调控制，但对一次空气的分配影响微乎其微。 烟囱组件和煤流控制元件（60）的组合导致煤流量的平衡。 平衡煤流是煤粉锅炉系统运行优化（即降低污染物排放，提高燃烧效率）的必要条件。
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6.发明授权
公开(公告)号：US5996808A
公开(公告)日：1999-12-07
申请号：US834540
申请日：1997-03-04
摘要： A process and device for separating different types of particulates from a mixture, which is especially suited for separating unburned carbon from raw fly ash. The process entails separating raw fly ash by size into a fine component and a coarse component (the coarse component having typically higher levels of unburned carbon). The coarse, high carbon, fly ash component (or optionally both components) are processed through an inclined fluidized bed to produce an upgraded coarse component with reduced unburned carbon. An acoustic field is imposed on the inclined fluidized bed(s) in order to enhance the bed's ability to fluidize and segregate the unburned carbon. The upgraded coarse and fine components are then mixed to yield a final product.
摘要翻译： 用于从混合物中分离不同类型的微粒的方法和装置，其特别适用于将未燃烧的碳与生的飞灰分离。 该方法需要将原料飞灰按尺寸分离成细组分和粗组分（粗组分具有通常较高水平的未燃碳）。 通过倾斜流化床处理粗，高碳，飞灰组分（或任选两种组分），以产生具有降低的未燃烧碳的升级的粗组分。 为了提高床的流动和分离未燃烧碳的能力，倾斜流化床上施加声场。 然后将升级的粗和细组分混合以产生最终产物。
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公开(公告)号：US06422392B1
公开(公告)日：2002-07-23
申请号：US09541962
申请日：2000-04-04
申请人： Edward Kenneth Levy
发明人： Edward Kenneth Levy
IPC分类号： B07B400
摘要： A process for removing ammonia from fly ash during processing on an inclined fluidized bed. The process begins by introducing a mixture of particulates having ammonia adsorbed therein into an inclined fluidized bed. Concurrently, a fluidizing gas is pre-heated and is also introduced into the fluidized bed. The mixture is then processed along the fluidized bed with the pre-heated fluidizing gas to achieve bubbling fluidization of the particles. This causes segregation by which a dense fraction settles downward and a light fraction rises upward in the bed. Ammonia in the particles is desorbed by the pre-heated fluidizing gas. The fluidizing gas is then scrubbed after the processing step to remove the desorbed ammonia. The process may also include the use of acoustic enhancement whereby an acoustic field is imposed on the fluidized bed to improve fluidization and segregation of the particles and to increase the efficacy of ammonia removal. In addition, a heat exchanger or electric heating elements immersed in the fluidized bed can be used to heat the ash to the temperatures needed to desorb ammonia from the ash. Furthermore, the energy efficiency of the process can be improved by recovering heat from the hot ash discharged from the fluidized bed and/or from the exhaust stream of hot fluidizing gas, for reuse during preheating steps. The improved process removes ammonia in a simple and efficient manner by preheating the fluidizing gas of the inclined bed to temperatures of 300 to 500° F., and using this preheated gas to drive off any adsorbed ammonia.
摘要翻译： 在倾斜流化床加工过程中从飞灰中除去氨的方法。 该方法开始于将其中吸附了氨的微粒的混合物引入到倾斜流化床中。 同时，流化气体被预热并且也被引入到流化床中。 然后将混合物沿着流化床与预热的流化气体一起处理，以实现颗粒的起泡流化。 这导致偏析，致密部分向下沉降，轻馏分在床上向上升高。 颗粒中的氨被预热的流化气体解吸。 然后在处理步骤之后洗涤流化气体以除去解吸的氨。 该方法还可以包括使用声学增强，由此在流化床上施加声场以改善颗粒的流化和分离并提高除氨的效力。 此外，浸入流化床中的热交换器或电加热元件可用于将灰加热到从灰分解氨中所需的温度。 此外，可以通过从流化床排出的热灰和/或从热流化气体的废气流回收热量来提高该方法的能量效率，以便在预热步骤期间重新使用。 改进的方法通过将倾斜床的流化气体预热至300至500°F的温度，并使用该预热气体驱除任何吸附的氨，从而以简单有效的方式除去氨。
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