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1.发明授权
公开(公告)号：US4908124A
公开(公告)日：1990-03-13
申请号：US324990
申请日：1989-03-15
CPC分类号： F23C10/26 , B01J8/1872 , B03B4/00 , B07B9/02
摘要： A foreign object removal system is disclosed including a removal chamber projecting laterally from the combustion chamber of a fluid bed reactor and connected via a downwardly directed pipe to a material flow control plenum chamber, which includes means for fluidizing the mixture of inert bed particles and foreign objects at the bottom of the pipe for lateral movement into an air classifier, wherein the foreign objects are dropped to a collection tank and the fluid bed particles are carried upwardly by a stream of classifying air to a deentrainment chamber where their velocity is reduced and they are returned to the combustion chamber.
摘要翻译： 公开了一种异物去除系统，其包括从流化床反应器的燃烧室侧向突出并且经由向下导向的管连接到材料流动控制增压室的去除室，该室包括用于使惰性床颗粒和外来物质的混合物流化的装置 用于横向移动到空气分级器中的物体，其中异物被落到收集罐中，并且流体床颗粒通过将空气分类到其速度降低的排泄室的气流向上运送，并且它们 返回到燃烧室。
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公开(公告)号：US4843981A
公开(公告)日：1989-07-04
申请号：US134959
申请日：1987-12-18
CPC分类号： F22B31/0023 , F22B31/0084 , F23C10/10
摘要： A fluidized bed combustor for burning solid fuel or dirty liquid fuels comprised of a bubbling fluid bed with tubes in the bed, an isothermal, non-heat extractive freeboard/recycle cyclone flow path, a hot recycle cyclone, a connective heat exchanger and a particle filter. The bubbling fluid bed is operated at low superficial velocities of 0.5 to 7 ft/sec and is composed of fine particulates 45 to 2000 microns in diameter with up to 40% less than 200 microns. Fines elutriated from the bed are isothermally recycled back to the bed resulting in high combustion efficiency and good sulfur oxide suppression from sorbents contained in the bed. The material recycled in one hour is equivalent to twice the weight of the bed. Ammonia injected upstream of the recycle cyclone suppresses nitrogen oxides with high efficiency because of the excellent mixing in the cyclone. The heat transfer coefficient on the tubes in the bed is increased at least 2 to 4 times because of the fine particulate in the bed. Fluidization occurs over a 10:1 range in superficial velocities. The present invention relates in general to fluid bed combustors and more particularly to a bubbling fluid bed with a high combustion efficiency, good sorbent utilization, non-heat extraction in the combustor freeboard above the bed and no secondary air introduction in the area above the bed to complete the oxidation reactions.
摘要翻译： 用于燃烧固体燃料或脏液体燃料的流化床燃烧器，其包括在床中具有管的起泡流化床，等温非热萃取干舷/循环旋风分离器流路，热循环旋风分离器，连接热交换器和颗粒 过滤。 起泡流化床以0.5至7英尺/秒的低表观速度运行，并且由直径为45至2000微米的微细颗粒组成，至少少于200微米的40％。 从床上淘汰的粪便被等温循环回床，导致高的燃烧效率和由床中的吸附剂抑制良好的硫氧化物。 在一小时内回收的材料相当于床的重量的两倍。 在循环旋风分离器上游注入的氨由于在旋风分离器中的优异混合而高效地抑制氮氧化物。 由于床中的细颗粒物，床上的管的传热系数增加至少2至4倍。 流化在表面速度上发生在10：1范围内。 本发明一般涉及流化床燃烧器，更具体地涉及具有高燃烧效率，良好的吸附剂利用率，在床上方的燃烧器干舷中的非热提取并且在床上方的区域中没有二次空气引入的起泡流化床 完成氧化反应。
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公开(公告)号：US4196676A
公开(公告)日：1980-04-08
申请号：US926914
申请日：1978-07-21
CPC分类号： B01J8/32 , B01J8/36 , F23C10/002 , F23C10/26 , F23G5/30
摘要： A fluid bed combustion method and apparatus are disclosed utilizing an induced draft fan downstream of the exhaust port of the combustion chamber. Fluidizing air is given a velocity vector toward one side of the chamber for moving foreign objects to that side where the objects are removed and separated by air classification from bed particles which are returned to the fluid bed. Air classification is accomplished using a blower which is valved off during preheat operation to draw hot air from above the fluid bed down through the particle bed.
摘要翻译： 公开了一种利用在燃烧室的排气口下游的引风机的流化床燃烧方法和装置。 流化空气被给予朝向腔的一侧的速度矢量，用于将异物移动到物体被去除的一侧，并通过空气分类与返回到流化床的床粒分离。 使用在预热操作期间被关闭的鼓风机实现空气分级，以将热空气从流化床上方向下通过颗粒床。
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4.发明授权
公开(公告)号：US4421038A
公开(公告)日：1983-12-20
申请号：US419873
申请日：1982-09-20
CPC分类号： F23C10/26 , B01J8/1872 , B03B4/00 , B07B9/02
摘要： A foreign object removal system is disclosed including a removal chamber projecting laterally from the combustion chamber of a fluid bed reactor and connected via a downwardly directed pipe to a material flow control plenum chamber which includes means for fluidizing the mixture of inert fluid bed particles and foreign objects at the bottom of the pipe for lateral movement into an air classifier wherein the foreign objects are dropped to a collection tank and the fluid bed particles are carried upwardly by a stream of classifying air to a deentrainment chamber where their velocity is reduced and they are returned to the combustion chamber.
摘要翻译： 公开了一种异物去除系统，其包括从流化床反应器的燃烧室侧向突出并且经由向下导向的管连接到材料流动控制增压室的移除室，该材料流控制室包括用于使惰性流化床颗粒和外来物质的混合物流化的装置 管道底部的物体横向移动到空气分级器中，其中异物被落到收集罐中，并且流化床颗粒通过将空气分类到去除室的流向上被携带，其中它们的速度被减小，并且它们是 返回到燃烧室。
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