Raw gas collection system
    1.
    发明授权
    Raw gas collection system 有权
    原始采气系统

    公开(公告)号:US09115437B2

    公开(公告)日:2015-08-25

    申请号:US13824969

    申请日:2011-09-14

    IPC分类号: C25C3/22 F27B14/08 F27D17/00

    摘要: A raw gas collection system (15) for collecting raw gas from a plurality of aluminum smelting pots (4) is equipped with a plurality of branch ducts (16, 16a-d). Each branch duct (16, 16a-d) is arranged to channel a respective branch flow (32, 32a-b) of raw gas from an aluminum smelting pot (4) to a collecting duct (20a), which is common to and shared by branch ducts (16, 16a-d). Several of the branch ducts (16, 16a-d) are equipped with a combined heat transfer and flow resistance generating element (17) to remove heat from the respective branch flow (32, 32a-b) of raw gas and to balance the flow of raw gas in the raw gas collecting system (15). The combined heat transfer and flow resistance generating elements (17) reduce the need for adjusting the respective branch duct (16, 16a-d) flow volumes using dampers, thereby reducing the power required to transport the raw gas through the system.

    摘要翻译: 用于从多个铝冶炼罐(4)收集原料气体的原料气体收集系统(15)配备有多个分支管道(16,17a-d)。 每个分支管道(16,16a-d)被布置成将来自铝冶炼罐(4)的原料气体的相应分支流(32,32a-b)引导到收集管道(20a),该收集管道共享并共享 通过支管(16,16a-d)。 几个分支管道(16,16a-d)配备有组合的传热和流动阻力产生元件(17),以从原气体的相应分支流(32,32a-b)去除热量并平衡流量 的原料气体收集系统(15)中的原料气体。 组合的传热和流动阻力产生元件(17)减少了使用阻尼器调节各个分支管道(16,17a-d)流量的需要,从而降低了将原料气体输送通过系统所需的功率。

    RAW GAS COLLECTION SYSTEM
    2.
    发明申请
    RAW GAS COLLECTION SYSTEM 有权
    原始气体收集系统

    公开(公告)号:US20130199939A1

    公开(公告)日:2013-08-08

    申请号:US13824969

    申请日:2011-09-14

    IPC分类号: C25C3/22

    摘要: A raw gas collection system (15) for collecting raw gas from a plurality of aluminium smelting pots (4) is equipped with a plurality of branch ducts (16, 16a-d). Each branch duct (16, 16a-d) is arranged to channel a respective branch flow (32, 32a-b) of raw gas from an aluminium smelting pot (4) to a collecting duct (20a), which is common to and shared by branch ducts (16, 16a-d). Several of the branch ducts (16, 16a-d) are equipped with a combined heat transfer and flow resistance generating element (17) to remove heat from the respective branch flow (32, 32a-b) of raw gas and to balance the flow of raw gas in the raw gas collecting system (15). The combined heat transfer and flow resistance generating elements (17) reduce the need for adjusting the respective branch duct (16, 16a-d) flow volumes using dampers, thereby reducing the power required to transport the raw gas through the system.

    摘要翻译: 用于从多个铝冶炼罐(4)收集原料气体的原料气体收集系统(15)配备有多个分支管道(16,17a-d)。 每个分支管道(16,16a-d)被布置成将来自铝冶炼罐(4)的原料气体的相应分支流(32,32a-b)引导到收集管道(20a),该收集管道共享并共享 通过支管(16,16a-d)。 几个分支管道(16,16a-d)配备有组合的传热和流动阻力产生元件(17),以从原气体的相应分支流(32,32a-b)去除热量并平衡流量 的原料气体收集系统(15)中的原料气体。 组合的传热和流动阻力产生元件(17)减少了使用阻尼器调节各个分支管道(16,17a-d)流量的需要,从而降低了将原料气体输送通过系统所需的功率。

    Pot heat exchanger
    3.
    发明授权
    Pot heat exchanger 有权
    锅式换热器

    公开(公告)号:US09360145B2

    公开(公告)日:2016-06-07

    申请号:US13824950

    申请日:2011-09-01

    摘要: A raw gas collection system for collecting raw gas from a plurality of aluminum smelting pots is equipped with a plurality of branch ducts (28d), each of which is arranged to channel a respective branch flow (38d) of raw gas from an aluminum smelting pot to a collection duct (26A), which is common to and shared by the branch ducts (28d). Each of said branch ducts (28d) is, near an outlet (52d) thereof, equipped with a curved section (50d) for aligning the branch flow (38d) with a flow direction of raw gas (27A) already present in the common collection duct (26A), and a constriction (54d) for accelerating the branch flow (38d) through the branch duct outlet (52d) into the common collection duct (26A). Furthermore, each of said branch ducts (28d) is equipped with a heat exchanger (40d) for removing heat from the respective branch flow (38d) of raw gas. The combined flow resistance of the constriction (54d) and the heat exchanger (40d) reduces the need for adjusting the respective branch flows (28d) using dampers, thereby reducing the power required to transport the raw gas.

    摘要翻译: 用于从多个铝冶炼罐收集原料气体的原料气体收集系统装备有多个分支管道(28d),每个分支管道(28d)布置成将来自铝冶炼罐的原料气体的相应分支流(38d) 到由分支管道(28d)共同并共享的收集管道(26A)。 所述分支管道(28d)中的每一个在其出口(52d)的附近都具有弯曲部分(50d),该弯曲部分用于使分支流(38d)与已经存在于公共集合体中的原料气体(27A)的流动方向对齐 (26A)和用于将分支流(38d)通过分支管道出口(52d)加速到共同收集管道(26A)中的收缩部(54d)。 此外,每个所述分支管道(28d)配备有用于从原料气体的各个分支流(38d)除去热量的热交换器(40d)。 收缩部(54d)和热交换器(40d)的组合流动阻力减少了使用阻尼器调节各个分支流(28d)的需要,从而降低了输送原料气体所需的功率。

    POT HEAT EXCHANGER
    4.
    发明申请
    POT HEAT EXCHANGER 有权
    锅热交换器

    公开(公告)号:US20130213494A1

    公开(公告)日:2013-08-22

    申请号:US13824950

    申请日:2011-09-01

    IPC分类号: F16L53/00

    摘要: A raw gas collection system for collecting raw gas from a plurality of aluminium smelting pots is equipped with a plurality of branch ducts (28d), each of which is arranged to channel a respective branch flow (38d) of raw gas from an aluminium smelting pot to a collection duct (26A), which is common to and shared by the branch ducts (28d). Each of said branch ducts (28d) is, near an outlet (52d) thereof, equipped with a curved section (50d) for aligning the branch flow (38d) with a flow direction of raw gas (27A) already present in the common collection duct (26A), and a constriction (54d) for accelerating the branch flow (38d) through the branch duct outlet (52d) into the common collection duct (26A). Furthermore, each of said branch ducts (28d) is equipped with a heat exchanger (40d) for removing heat from the respective branch flow (38d) of raw gas. The combined flow resistance of the constriction (54d) and the heat exchanger (40d) reduces the need for adjusting the respective branch flows (28d) using dampers, thereby reducing the power required to transport the raw gas.

    摘要翻译: 用于从多个铝冶炼罐收集原料气体的原料气体收集系统装备有多个分支管道(28d),每个分支管道(28d)布置成将来自铝冶炼罐的原料气体的相应分支流(38d) 到由分支管道(28d)共同并共享的收集管道(26A)。 所述分支管道(28d)中的每一个在其出口(52d)的附近都具有弯曲部分(50d),该弯曲部分用于使分支流(38d)与已经存在于公共集合体中的原料气体(27A)的流动方向对齐 (26A)和用于将分支流(38d)通过分支管道出口(52d)加速到共同收集管道(26A)中的收缩部(54d)。 此外,每个所述分支管道(28d)配备有用于从原料气体的各个分支流(38d)除去热量的热交换器(40d)。 收缩部(54d)和热交换器(40d)的组合流动阻力减少了使用阻尼器调节各个分支流(28d)的需要,从而降低了输送原料气体所需的功率。

    GAS CLEANING UNIT AND METHOD FOR CLEANING GAS
    5.
    发明申请
    GAS CLEANING UNIT AND METHOD FOR CLEANING GAS 有权
    气体清洁单元和清洁气体的方法

    公开(公告)号:US20130206005A1

    公开(公告)日:2013-08-15

    申请号:US13810198

    申请日:2011-06-28

    IPC分类号: B01D53/14

    摘要: A gas cleaning unit for cleaning a main raw gas stream from a plant comprises a plurality of gas cleaning chambers (34a-c), each gas cleaning chamber (34a-c) equipped with a cleaning chamber inlet (46a-c); an inlet manifold (32), for dividing said main raw gas stream flowing therethrough into a plurality of separate fractional raw gas streams for flow to said cleaning chamber inlets (46a-c); and a plurality of heat exchangers (40a-c), each heat exchanger (40a-c) being located downstream of the inlet manifold (32) for exchanging heat with a respective fractional raw gas stream entering a respective cleaning chamber (34a-c).

    摘要翻译: 一种用于清洁来自植物的主要原料气流的气体净化单元包括多个气体净化室(34a-c),每个具有清洁室入口(46a-c)的气体净化室(34a-c); 入口歧管(32),用于将流过其中的所述主原料气流分成多个分开的原料气流,用于流动到所述清洁室入口(46a-c); 和多个热交换器(40a-c),每个热交换器(40a-c)位于入口歧管(32)的下游,用于与进入相应的清洁室(34a-c)的相应分数的原料气流进行热交换, 。

    METHOD AND A DEVICE FOR VERIFYING AND CONTROLLING THE REMOVAL OF HYDROGEN FLUORIDE FROM A PROCESS GAS
    7.
    发明申请
    METHOD AND A DEVICE FOR VERIFYING AND CONTROLLING THE REMOVAL OF HYDROGEN FLUORIDE FROM A PROCESS GAS 审中-公开
    用于验证和控制从工艺气体中去除氟化氢的方法和装置

    公开(公告)号:US20110268639A1

    公开(公告)日:2011-11-03

    申请号:US13126324

    申请日:2009-10-27

    IPC分类号: B01D53/68

    摘要: A gas cleaning system (1) is designed for removing hydrogen fluoride from a process gas generated during the production of aluminium from alumina. The gas cleaning system (1) comprises a scrubbing chamber (8, 10, 12) for purposes of mixing the process gas with particulate alumina, and a filter device (24,26,28) which is located downstream of the scrubbing chamber (8,10,12) with respect to the direction of flow of the process gas. A sulphur dioxide measurement device (40, 42, 44, 50) is operative for measuring the amount of the concentration of sulphur dioxide that is present in the process gas downstream of the filter device (24, 26, 28). A controller (46) is operative-connected to the sulphur dioxide measurement device (40, 42, 44, 50) and is operative for utilizing the measured amount of the concentration of sulphur dioxide for purposes of evaluating the efficiency of the hydrogen fluoride removal by the gas cleaning system (1).

    摘要翻译: 气体清洁系统(1)设计用于从在氧化铝生产铝过程中产生的工艺气体中除去氟化氢。 气体清洁系统(1)包括用于将工艺气体与颗粒氧化铝混合的洗涤室(8,10,12)和位于洗涤室(8)的下游的过滤装置(24,26,28) ,10,12)相对于处理气体的流动方向。 二氧化硫测量装置(40,42,44,50)用于测量在过滤装置(24,26,28)下游的处理气体中存在的二氧化硫浓度的量。 控制器(46)可操作地连接到二氧化硫测量装置(40,42,44,50),并且用于利用所测量的二氧化硫浓度来评估氟化氢去除效率的目的 气体净化系统(1)。