CN101506396B - 将粉末共混于液体中的方法及装置 - Google Patents

将粉末共混于液体中的方法及装置 Download PDF

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CN101506396B
CN101506396B CN2007800251953A CN200780025195A CN101506396B CN 101506396 B CN101506396 B CN 101506396B CN 2007800251953 A CN2007800251953 A CN 2007800251953A CN 200780025195 A CN200780025195 A CN 200780025195A CN 101506396 B CN101506396 B CN 101506396B
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CN101506396A (zh
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比亚内·安德斯·赫格塞特
佩尔·贡纳尔·斯特兰德
约·亨里克·沃格兰德
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/50—Mixing liquids with solids
    • B01F23/51—Methods thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/30—Injector mixers
    • B01F25/31—Injector mixers in conduits or tubes through which the main component flows
    • B01F25/313—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced in the centre of the conduit
    • B01F25/3131—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced in the centre of the conduit with additional mixing means other than injector mixers, e.g. screens, baffles or rotating elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/71—Feed mechanisms
    • B01F35/711—Feed mechanisms for feeding a mixture of components, i.e. solids in liquid, solids in a gas stream
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/71—Feed mechanisms
    • B01F35/717—Feed mechanisms characterised by the means for feeding the components to the mixer
    • B01F35/718—Feed mechanisms characterised by the means for feeding the components to the mixer using vacuum, under pressure in a closed receptacle or circuit system
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B21/00—Obtaining aluminium
    • C22B21/06—Obtaining aluminium refining
    • C22B21/062—Obtaining aluminium refining using salt or fluxing agents
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
    • C22B9/10—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals with refining or fluxing agents; Use of materials therefor, e.g. slagging or scorifying agents
    • C22B9/103—Methods of introduction of solid or liquid refining or fluxing agents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/40—Static mixers
    • B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Manufacturing & Machinery (AREA)
  • Dispersion Chemistry (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)
  • Continuous Casting (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Electrolytic Production Of Metals (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Accessories For Mixers (AREA)
  • Nozzles (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)

Abstract

一种将粉末共混于液体中的方法及装置，其中所述方法包括供给源(14)中的液体在该液体待转移入的坩埚(12)中的负压影响下经引流管(6)流出供给源(14)，粉末由粉末容器(1)配料并由气体驱动，将粉末和气体的混合物加入到引流管(6)内的液体中并与之混合，由此使所述混合物流入坩埚(12)。所述装置包括可以流出液体的供给源(14)和装有粉末的容器(1)，由此引流管(6)将供给源(14)与能够在内部负压下保持的接收容器(12)相连。为粉末提供驱动气体的装置(4)与混合室(3)在粉末容器(1)的出口处相连，同时混合室(3)连接到引流管(6)以将粉末供给到在引流管内流动的液体中。

Description

将粉末共混于液体中的方法及装置
本发明涉及一种将粉末共混于液体中的方法及装置。实例为将氟化铝加入铝中以除去钠和在熔融合金中加入合金元素。
从液体铝中除去钠可以发生在例如铸造车间里的电解炉和保温炉(holding furnace)/铸造炉之间的工艺线路中。氟化铝粉末(AlF3)的搅拌采用转子或螺旋桨进行，该方法的目的是将粉末很好地分散在熔融物中。该过程是耗时的(10-15min)而且需要相对较大设备投资。熔融物的温度也往往是一个经济因素，而来自熔融物表面的污染物的搅拌可能也是一个问题。这相应地适用于合金元素的添加。
本发明提供了一种其特征在于后续权利要求中所出现的特征的方法和装置。
根据本发明的一个实施方式，在加入粉末的同时将液体金属从电解炉转移到转运坩埚或从转运坩埚转移到保温炉/铸造炉。在保持金属所转移到的容器中的负压的同时，将液体金属从供给源中吸出并经过引流管，然后将粉末在引流管内加入金属中，金属与添加的粉末一起经弯管流入容器。优选的是，在容器中安装接收管，以便于引导金属和粉末下行到容器底部附近。在那里，金属和粉末流出接收管从而搅动容器中的金属。
所述负压已经显示出对氟化铝粉末从液体铝中去除钠的能力具有有利影响。
在附图所图示的实施方式中，为将粉末共混到熔融金属中同时将其从例如形式为电解池14的供给源传输到例如形式为例如保温炉或坩埚的容器12，根据本发明的装置包括下列设备：
粉末容器1，包括
-用于计量流出粉末容器1的粉末量的配料单元2，
-粉末和粉末用输送气的混合室3，
-调节压力和所加入的粉末量的调节单元4。
来自混合室3的粉末和气体用输送线5。
熔融金属用引流管6，包括
-引流管6上的注射单元7，
-引流管6中的混合区8。
坩埚12上的坩埚盖15。
引流管6和坩埚盖15之间的弯管10。
抽气用连接器13，以便于保持坩埚12中的负压。
可选的是，坩埚12上的引流管6和弯管10之间的连接器部件(connector piece)9。
可选的是，与弯管10相连的坩埚12中的接收管11。
根据本发明的装置的使用实例描述如下。
将粉末，例如氟化铝(AlF3)，装填于粉末容器1内。该粉末通过进料器配料至混合室中，经调节单元4供给诸如氩气、氮气或空气等输送气并迫使粉末通过输送线5并经注射单元7进入引流管6，此时将粉末注入到引流管6内向上流动的液体金属中。注入可与金属的流动顺流、逆流或交叉地进行。引流管6可以包含一个或多个混合区8，例如具有导致湍流从而彻底地混合熔融金属和粉末的固定元件(stationary element)。作为另一种选择，可以在引流管周围使用磁场。
坩埚12可包含引导熔融金属与粉末的混合物下行至坩埚12的底部的接收管11。由于混合物流出接收管11并进入已经存在于坩埚12中的液体金属中，熔融金属中发生了搅拌和流动，这在冶金学上对于粉末的效果是有利的。
而且，可以从坩埚12底部供给气体。作为另一种选择，坩埚盖内的弯管10可以在没有熔融金属流经引流管6时密封，并且气体可通过连接器部件9供给，经接收管11到达坩埚12的底部。气体会导致液体金属中起泡并由此导致能够提高粉末的效果并改善混合工艺的搅拌。这样的气体供给可以在例如坩埚12从电解池传送到铸造炉时进行。
根据本发明的方法和装置最重要的优点是：
它们不会导致比普通引流和传输更长的循环时间。
与已知方法和装置相比较低的投资成本。
所需空间很少，可以轻易安装在现有厂房里。
可安装在坩埚或引流车(drain wagon)/坩埚上。
可能的烟尘流出物可由熔炉上已有的抽气系统处理。
最小的温度损失。
最优的电力利用。
注射时消耗少量气体。
可以理解的是液体铝和氟化铝粉末仅作为实例提及而并非旨在限定本发明的范围。

Claims (10)

1.一种将粉末共混于液体中的方法，其特征在于供给源(14)中的液体在所述液体待转移入的坩埚(12)内的负压的影响下流出所述供给源(14)并向上流经引流管(6)，所述粉末由粉末容器(1)配料并由气体驱动，将所述粉末和气体的混合物加入到所述引流管(6)内的液体中并与之混合，由此使所述混合物流入所述坩埚(12)。
2.如权利要求1所述的方法，其中将所述粉末在混合区(8)供给到所述引流管(6)。
3.如权利要求1所述的方法，其中将所述混合物经所述坩埚(12)上的盖(15)供给到所述坩埚(12)中并向下经过所述坩埚(12)内部的接收管(11)，随后经所述接收管(11)的下部开口末端流出。
4.如权利要求1～3中任一项所述的方法，所述方法用熔融铝形式的液体和氟化铝形式的粉末实施。
5.如权利要求1～3中任一项所述的方法，所述方法用合金形式的液体和合金组分形式的粉末实施。
6.一种将粉末共混于液体中的装置，所述装置包括可以流出液体的供给源(14)和装有粉末的容器(1)，其特征在于引流管(6)将所述供给源(14)与处于较高位置的能够在内部负压下保持的接收容器(12)相连，而为粉末提供驱动气体的装置(4)与混合室(3)在所述粉末容器(1)的出口处相连，同时所述混合室(3)连接到所述引流管(6)以将所述粉末供给到在所述引流管内流动的液体中。
7.如权利要求6所述的装置，其中所述引流管(6)包含混合区(8)。
8.如权利要求6或7所述的装置，其中在所述引流管(6)上安装粉末用注射单元(7)。
9.如权利要求6或7所述的装置，所述装置包括用于计量流出所述粉末容器(1)的粉末量的配料单元(2)。
10.如权利要求6或7所述的装置，所述装置包括调节压力和所供给的气体量的调节单元(4)。
CN2007800251953A 2006-07-04 2007-06-22 将粉末共混于液体中的方法及装置 Active CN101506396B (zh)

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NO20063101A NO325978B1 (no) 2006-07-04 2006-07-04 Fremgangsmate og anordning for tilsetning av pulver i vaeske
NO20063101 2006-07-04
PCT/NO2007/000225 WO2008010721A1 (en) 2006-07-04 2007-06-22 A method and device for admixture of powder in a liquid

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BR (1) BRPI0713228B1 (zh)
CA (1) CA2657191C (zh)
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CN103084082A (zh) * 2012-12-19 2013-05-08 梁锦伟 快速搅拌机
CN104492331B (zh) * 2014-12-22 2017-02-22 山东大学 一种活性炭投加装置及方法
FR3032361B1 (fr) * 2015-02-10 2022-01-28 Exel Ind Melangeur pour aspirer et melanger un produit solide avec un liquide provenant d’une cuve de pulverisateur
NO342536B1 (en) * 2015-06-01 2018-06-11 Hmr Hydeq As A molten metal and powder adding and mixing system and a system for the production of metal
CN110218838A (zh) * 2019-06-04 2019-09-10 王俊英 一种炉外铁水脱硫方法
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BRPI0713228B1 (pt) 2018-05-08
NO325978B1 (no) 2008-08-25
CA2657191A1 (en) 2008-01-24
AU2007275955A1 (en) 2008-01-24
BRPI0713228A2 (pt) 2012-03-27
AU2007275955A8 (en) 2011-08-11
NO20063101L (no) 2008-01-07
WO2008010721A1 (en) 2008-01-24
IS8786A (is) 2009-01-26
US8128726B2 (en) 2012-03-06
AU2007275955B8 (en) 2011-08-11
CA2657191C (en) 2014-10-21
WO2008010721A8 (en) 2009-02-26
RU2448764C2 (ru) 2012-04-27
IS2818B (is) 2012-12-15
CN101506396A (zh) 2009-08-12
RU2009101100A (ru) 2010-07-20
US20100050815A1 (en) 2010-03-04

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