WO2009026781A1 - A pipe-type causticizer - Google Patents

A pipe-type causticizer Download PDF

Info

Publication number
WO2009026781A1
WO2009026781A1 PCT/CN2008/001428 CN2008001428W WO2009026781A1 WO 2009026781 A1 WO2009026781 A1 WO 2009026781A1 CN 2008001428 W CN2008001428 W CN 2008001428W WO 2009026781 A1 WO2009026781 A1 WO 2009026781A1
Authority
WO
WIPO (PCT)
Prior art keywords
pipe
causticizer
conduit
static mixing
type
Prior art date
Application number
PCT/CN2008/001428
Other languages
French (fr)
Chinese (zh)
Inventor
Liang Wang
Shujie Ma
Fenglu Zhou
Original Assignee
China Aluminium International Engineering Corporation Limited
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by China Aluminium International Engineering Corporation Limited filed Critical China Aluminium International Engineering Corporation Limited
Priority to AU2008291570A priority Critical patent/AU2008291570B2/en
Publication of WO2009026781A1 publication Critical patent/WO2009026781A1/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F7/00—Compounds of aluminium
    • C01F7/02—Aluminium oxide; Aluminium hydroxide; Aluminates
    • C01F7/04—Preparation of alkali metal aluminates; Aluminium oxide or hydroxide therefrom
    • C01F7/06—Preparation of alkali metal aluminates; Aluminium oxide or hydroxide therefrom by treating aluminous minerals or waste-like raw materials with alkali hydroxide, e.g. leaching of bauxite according to the Bayer process
    • C01F7/062—Digestion
    • C01F7/064—Apparatus for digestion, e.g. digestor vessels or heat exchangers
    • 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
    • B01F25/421—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 by moving the components in a convoluted or labyrinthine path
    • 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
    • B01F25/421—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 by moving the components in a convoluted or labyrinthine path
    • B01F25/423—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 by moving the components in a convoluted or labyrinthine path by means of elements placed in the receptacle for moving or guiding the components
    • B01F25/4231—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 by moving the components in a convoluted or labyrinthine path by means of elements placed in the receptacle for moving or guiding the components using baffles
    • 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
    • B01F25/43—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
    • B01F25/433—Mixing tubes wherein the shape of the tube influences the mixing, e.g. mixing tubes with varying cross-section or provided with inwardly extending profiles
    • 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
    • B01F25/43—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
    • B01F25/433—Mixing tubes wherein the shape of the tube influences the mixing, e.g. mixing tubes with varying cross-section or provided with inwardly extending profiles
    • B01F25/4331—Mixers with bended, curved, coiled, wounded mixing tubes or comprising elements for bending the flow

Definitions

  • This invention relates to pipe causticizers in chemical production, and more particularly to a pipe causticizer for inorganic salts in a causticizing evaporation system in Bayer process alumina production. Background technique
  • the inorganic salts discharged from the evaporation system in the existing alumina production are causticized by a causticizing tank group composed of a plurality of causticizing tanks with a stirring and stripping system, and a stirrer is used to ensure the causticizing reaction.
  • a causticizing tank group composed of a plurality of causticizing tanks with a stirring and stripping system, and a stirrer is used to ensure the causticizing reaction.
  • compressed air is introduced into the causticizing tank to cause the caustic to flow in the causticizing tank.
  • Such causticizing systems consume a lot of energy. Summary of the invention
  • the technical problem to be solved by the present invention is to provide a pipe causticizer, which aims to make the causticizing agent of the causticizing agent do not need a stirring device and a stripping system to save the energy, and the reaction is sufficient and complete. Reduce caustic energy consumption.
  • a pipe causticizer comprising: a pipe; a heater disposed outside the pipe; and a mixer disposed inside the pipe. Both ends of the pipe are the caustic pulp inlet and the caustic pulp outlet.
  • the pipe includes a plurality of sections of conduits, and the adjacent two sections of conduits are connected by a connecting pipe.
  • the plurality of sections of conduit are arranged in parallel such that the conduits and the connecting tubes together form a substantially serpentine conduit.
  • the conduit is substantially straight.
  • the connecting pipe is a bent pipe.
  • the elbow is 70 of a large bending radius. -120.
  • the elbow has a bending radius of 4-20 times the nominal diameter of the elbow.
  • the number of the conduits is 2-20.
  • the conduit is a steel tube.
  • the mixer includes a plurality of static mixing units, each of which is provided with at least one static mixing unit.
  • the static mixing unit is an SK type static mixing unit having an irregular spiral inside.
  • the heater includes a steam heating jacket disposed on each of the conduits.
  • An expansion joint is provided on each steam heating jacket.
  • Each steam heating jacket has a steam inlet and a condensate outlet.
  • the static mixing unit and the conduit can be either welded or flanged.
  • the inorganic salt is mixed with the lime milk to enter the pipe causticizer of the present invention
  • the causticization reaction is completed in the pipeline by a certain residence time under the heating of the steam in the heating jacket.
  • a static mixer in the pipe causticizer ensures rapid reaction of the caustic solution.
  • the present invention not only saves energy but also provides sufficient and complete response.
  • Figure 3 is a schematic cross-sectional view of the present invention
  • a pipe causticizer generally includes a pipe, a heater disposed outside the pipe, and a mixer disposed inside the pipe.
  • the conduit preferably includes a plurality of sections of conduit 8, such as 2-20 conduits.
  • the conduit 8 is preferably a steel tube.
  • the multi-section conduit 8 is preferably straight and preferably has substantially the same length.
  • the multi-section conduits 8 are preferably arranged substantially parallel in a direction transverse to the direction of extension of the conduit 8.
  • the two adjacent sections of the conduits 8 are connected by a connecting pipe 6 such that the ducts 8 and the connecting ducts 6 together form a substantially serpentine pipe, the two ends of which are the causticizing slurry inlet 4 and the causticizing pulp outlet 5, respectively.
  • the connecting pipe 6 is preferably a bent pipe 6, which preferably belongs to a 70° - 120° elbow with a large bending radius, and has a bending radius of 4-20 times the nominal diameter of the elbow.
  • a heater 7 is provided outside each conduit 8 for heating the caustic slurry stream in conduit 8.
  • the heater 7 is preferably a steam heating jacket 7, and the steam enters the steam heating jacket 7 to indirectly heat the caustic slurry stream in the conduit 8.
  • Each steam heating jacket 7 is connected with a steam inlet 1 and a condensate outlet 2, and steam enters the heating jacket 7 from the inlet 1 and becomes condensed water after being exchanged to be discharged from the condensed water outlet 2.
  • the steam heating jacket 7 is only mounted on the conduit 8, and the steam heating jacket 7 is not provided on the connecting pipe 6.
  • the number of steam heating jackets 7 is the same as the number of conduits 8.
  • An expansion joint 3 is provided on each of the steam heating jackets 7 for eliminating the thermal expansion effect, and the expansion amount of the expansion joints 3 is determined according to the length of the heating jacket 7.
  • a mixer is provided inside each section of the conduit 8.
  • 1-10 static mixing units 9 are connected to the inner wall of each section of the conduit 8.
  • the static mixing unit 9 is preferably a SK type static mixing unit having an irregular spiral inside. .
  • the above-mentioned conduit 8 is a causticizing reactor, and the total length of these conduits 8 is based on causticizing The reaction time is determined.
  • the mixed caustic slurry is introduced into the pipe causticizer from the causticized pulp inlet, and the steam enters the steam heating jacket to indirectly heat the caustic slurry in the pipeline.
  • the causticizing pulp undergoes a causticizing reaction when it flows, and the causticizing pulp is further mixed after flowing through the static mixing unit to accelerate the reaction process.
  • the causticized pulp has sufficient residence time in the pipe causticizer to complete the reaction.
  • the reacted caustic pulp is discharged from the system by the causticizing pulp outlet.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Nutrition Science (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Paper (AREA)

Abstract

A pipe-type causticizer used in chemical industry is provided, especially, a pipe-type causticizer used to causticize inorganic salts in evaporation system in the preparation of alumina by the Bayer method is provided. The present pipe-type causticizer is consisted of pipe (8), steam heating jacket (7) disposed outside the pipe (8) and static mixing element (9) disposed inside the pipe (8), steam inlet (1) and condensation water outlet (2) connected with steam heating jacket (7). The inorganic salts are mixed with lime cream, then the mixture is fed into the pipe-type causticizer, the causticization reaction is completed in the conduit of the pipe-type causticizer by certain residence time and under the heat of steam in the heating jacket. During the reaction, the static mixing element inside the pipe-type causticizer can ensure quick reaction of the causticizing liquid. The device can save energy, and can make the reaction fully and completely.

Description

管道苛化器 技术领域  Pipe causticizer
本发明涉及在化工生产中管道苛化器， 尤其涉及一种拜尔法氧化 铝生产中苛化蒸发***中无机盐的管道苛化器。 背景技术  This invention relates to pipe causticizers in chemical production, and more particularly to a pipe causticizer for inorganic salts in a causticizing evaporation system in Bayer process alumina production. Background technique
现有氧化铝生产中蒸发***排出的无机盐是通过多个苛化槽构成 苛化槽组来进行苛化的， 这种苛化槽带有搅拌和气提***， 使用搅拌 器保证苛化反应的完全， 向苛化槽内通入压缩空气来促使苛化液在苛 化槽组中流动。 这样的苛化***能耗大。 发明内容  The inorganic salts discharged from the evaporation system in the existing alumina production are causticized by a causticizing tank group composed of a plurality of causticizing tanks with a stirring and stripping system, and a stirrer is used to ensure the causticizing reaction. Completely, compressed air is introduced into the causticizing tank to cause the caustic to flow in the causticizing tank. Such causticizing systems consume a lot of energy. Summary of the invention
本发明所要解决的技术问题是提供一种管道苛化器， 目的是使管 道苛化器不需要搅拌设备及气提***就能完成苛化液的苛化反应， 节 省能源， 反应充分、 完全， 降低苛化能耗。  The technical problem to be solved by the present invention is to provide a pipe causticizer, which aims to make the causticizing agent of the causticizing agent do not need a stirring device and a stripping system to save the energy, and the reaction is sufficient and complete. Reduce caustic energy consumption.
为达上述目的， 本发明是这样实现的： 一种管道苛化器， 包括： 管道； 设置在管道外部的加热器； 设置在管道内部的混合器。 所迷管 道的两端为苛化浆进口和苛化浆出口。  To achieve the above object, the present invention is achieved as follows: A pipe causticizer comprising: a pipe; a heater disposed outside the pipe; and a mixer disposed inside the pipe. Both ends of the pipe are the caustic pulp inlet and the caustic pulp outlet.
所述管道包括多段导管， 相邻两段导管之间通过连接管连接。 所 述多段导管平行排布， 使得这些导管和连接管一起形成一种基本上蛇 形的管道。 所述导管基本上为直的。 所述连接管为弯管。 所述的弯管 属于大弯曲半径的 70。 -120。 弯管， 其弯曲半径为 4-20倍弯管公称直 径。 所述导管的数量为 2-20个。 所述导管为钢管。  The pipe includes a plurality of sections of conduits, and the adjacent two sections of conduits are connected by a connecting pipe. The plurality of sections of conduit are arranged in parallel such that the conduits and the connecting tubes together form a substantially serpentine conduit. The conduit is substantially straight. The connecting pipe is a bent pipe. The elbow is 70 of a large bending radius. -120. The elbow has a bending radius of 4-20 times the nominal diameter of the elbow. The number of the conduits is 2-20. The conduit is a steel tube.
所述混合器包括多个静态混合单元， 每个导管内壁上设有至少一 个静态混合单元。 所述静态混合单元是内部为不规则螺旋的 SK型的静 态混合单元。  The mixer includes a plurality of static mixing units, each of which is provided with at least one static mixing unit. The static mixing unit is an SK type static mixing unit having an irregular spiral inside.
所述加热器包括设置在每个导管上的蒸汽加热套。 每个蒸汽加热 套上设置一膨胀节。 每个蒸汽加热套均带有蒸汽进口和冷凝水出口。  The heater includes a steam heating jacket disposed on each of the conduits. An expansion joint is provided on each steam heating jacket. Each steam heating jacket has a steam inlet and a condensate outlet.
所迷的静态混合单元与导管可以是焊接， 也可以是法兰连接。 本发明的优点和效果如下:.  The static mixing unit and the conduit can be either welded or flanged. The advantages and effects of the present invention are as follows:
在工作时， 无机盐与石灰乳混令后进入本发明的管道苛化器， 在 加热套中蒸汽的加热作用下在管道内经由一定的停留时间， 完成苛化 反应。 在反应过程中， 管道苛化器内的静态混合器可以保证苛化液反 应的快速进行。 本发明不仅节省了能源， 而且反应充分、 完全。 附图说明 At work, the inorganic salt is mixed with the lime milk to enter the pipe causticizer of the present invention, The causticization reaction is completed in the pipeline by a certain residence time under the heating of the steam in the heating jacket. During the reaction, a static mixer in the pipe causticizer ensures rapid reaction of the caustic solution. The present invention not only saves energy but also provides sufficient and complete response. DRAWINGS
图 1是本发明主视结构示意图。  BRIEF DESCRIPTION OF THE DRAWINGS
图 2是本发明俯视结构示意图  2 is a schematic plan view of the present invention
图 3是本发明剖视结构示意图  Figure 3 is a schematic cross-sectional view of the present invention
图中： 1、 蒸汽进口； 2、 冷凝水出口； 3、 膨胀节； 4、 苛化浆进 口； 5、 苛化浆出口； 6、 弯管； 7、 蒸汽加热套； 8、 导管； 9、 静态混 合单元。 具体实施方式  In the figure: 1, steam inlet; 2, condensate outlet; 3, expansion joint; 4, caustic pulp inlet; 5, caustic pulp outlet; 6, curved pipe; 7, steam heating jacket; 8, conduit; Static mixing unit. detailed description
按照本发明的一个实施例， 一种管道苛化器总体上包括管道、 设 置在管道外部的加热器以及设置在管道内部的混合器。 该管道优选包 括多段导管 8， 例如 2-20个导管。 该导管 8优选为钢管。 该多段导管 8优 选是直的， 并优选具有基本相同的长度。 该多段导管 8优选是沿着横向 于导管 8的延伸方向的方向上基本上平行布置。 相邻两段导管 8之间通 过连接管 6连接， 使得这些导管 8和连接管 6—起形成一种基本上蛇形的 管道， 其两端分别为苛化浆进口 4和苛化浆出口 5。 该连接管 6优选为弯 管 6， 该弯管 6优选属于大弯曲半径的 70° -120° 弯管， 其弯曲半径为 4-20倍弯管公称直径。优选每个导管 8外设置有加热器 7,用于加热导管 8中的苛化浆液流。 该加热器 7优选为蒸汽加热套 7， 蒸汽进入蒸汽加热 套 7后间接加热导管 8中苛化浆液流。 每段蒸汽加热套 7上连接有蒸汽进 口 1和冷凝水出口 2， 蒸汽从进口 1进入加热套 7， 换热后变成冷凝水由 冷凝水出口 2排出。 优选是， 蒸汽加热套 7只安装在导管 8上， 连接管 6 上不设置蒸汽加热套 7。 蒸汽加热套 7的数量与导管 8的数量相同。 每段 蒸汽加热套 7上设置一膨胀节 3, 用于消除热膨胀效应， 膨胀节 3的膨胀 量根据加热套 7的长度确定。 每段导管 8内部设有混合器。 例如， 每段 导管 8内壁连接有 1-10个静态混合单元 9。 该静态混合单元 9优选为内部 是不规则螺旋的 SK型的静态混合单元。 。  In accordance with an embodiment of the present invention, a pipe causticizer generally includes a pipe, a heater disposed outside the pipe, and a mixer disposed inside the pipe. The conduit preferably includes a plurality of sections of conduit 8, such as 2-20 conduits. The conduit 8 is preferably a steel tube. The multi-section conduit 8 is preferably straight and preferably has substantially the same length. The multi-section conduits 8 are preferably arranged substantially parallel in a direction transverse to the direction of extension of the conduit 8. The two adjacent sections of the conduits 8 are connected by a connecting pipe 6 such that the ducts 8 and the connecting ducts 6 together form a substantially serpentine pipe, the two ends of which are the causticizing slurry inlet 4 and the causticizing pulp outlet 5, respectively. . The connecting pipe 6 is preferably a bent pipe 6, which preferably belongs to a 70° - 120° elbow with a large bending radius, and has a bending radius of 4-20 times the nominal diameter of the elbow. Preferably, a heater 7 is provided outside each conduit 8 for heating the caustic slurry stream in conduit 8. The heater 7 is preferably a steam heating jacket 7, and the steam enters the steam heating jacket 7 to indirectly heat the caustic slurry stream in the conduit 8. Each steam heating jacket 7 is connected with a steam inlet 1 and a condensate outlet 2, and steam enters the heating jacket 7 from the inlet 1 and becomes condensed water after being exchanged to be discharged from the condensed water outlet 2. Preferably, the steam heating jacket 7 is only mounted on the conduit 8, and the steam heating jacket 7 is not provided on the connecting pipe 6. The number of steam heating jackets 7 is the same as the number of conduits 8. An expansion joint 3 is provided on each of the steam heating jackets 7 for eliminating the thermal expansion effect, and the expansion amount of the expansion joints 3 is determined according to the length of the heating jacket 7. A mixer is provided inside each section of the conduit 8. For example, 1-10 static mixing units 9 are connected to the inner wall of each section of the conduit 8. The static mixing unit 9 is preferably a SK type static mixing unit having an irregular spiral inside. .
上述的导管 8是苛化反应的反应器， 这些导管 8的总长度根据苛化 反应时间来确定。 通过采取多个导管 8平行排布并通过弯管 6连接在一 起， 可以减少该苛化器所占用空间^长度， 增加苛化反应时间。 The above-mentioned conduit 8 is a causticizing reactor, and the total length of these conduits 8 is based on causticizing The reaction time is determined. By adopting a plurality of conduits 8 arranged in parallel and connected together by the elbow 6, the space occupied by the causticizer can be reduced, and the causticizing reaction time can be increased.
在工作时， 混合后的苛化浆由苛化浆进口进入管道苛化器， 蒸汽 进入蒸汽加热套中对管道中的苛化浆进行间接加热。 苛化浆在流动时 发生苛化反应， 在流经静态混合单元后苛化浆进一步混合， 加快反应 进程。 苛化浆在管道苛化器内有足够的停留时间完成反应。 反应后的 苛化浆由苛化浆出口排出***。  In operation, the mixed caustic slurry is introduced into the pipe causticizer from the causticized pulp inlet, and the steam enters the steam heating jacket to indirectly heat the caustic slurry in the pipeline. The causticizing pulp undergoes a causticizing reaction when it flows, and the causticizing pulp is further mixed after flowing through the static mixing unit to accelerate the reaction process. The causticized pulp has sufficient residence time in the pipe causticizer to complete the reaction. The reacted caustic pulp is discharged from the system by the causticizing pulp outlet.

Claims

权 利 要 求 Rights request
1、 一种管道苛化器， 包括： 1. A pipe causticizer comprising:
管道；  Pipeline
设置在管道外部的加热器；  a heater disposed outside the pipe;
设置在管道内部的混合器。  Set the mixer inside the pipe.
2、 根据权利要求 1所述的管道苛化器， 其特征在于， 所述管道的 两端为苛化浆进口 （4)和苛化浆出口 （5) 。  2. Pipe causticizer according to claim 1, characterized in that both ends of the pipe are a caustic slurry inlet (4) and a causticizing pulp outlet (5).
3、 根据权利要求 1所述的管道苛化器， 其特征在于， 所述管道包 括多段导管 （8) , 相邻两段导管 （8)之间通过连接管 （6)连接。  3. Pipe causticizer according to claim 1, characterized in that the pipe comprises a plurality of sections of conduit (8) and the adjacent sections of the duct (8) are connected by a connecting pipe (6).
4、 根据权利要求 3所述的管道苛化器， 其特征在于， 所述多段导 管（8)平行排布， 使得这些导管和连接管一起形成一种基本上蛇形的 管道。  4. Pipe causticizer according to claim 3, characterized in that the plurality of sections of conduit (8) are arranged in parallel such that the ducts and the connecting tubes together form a substantially serpentine duct.
5、 根据权利要求 4所述的管道苛化器， 其特征在于， 所述导管（8) 基本上为直的。  5. Pipe causticizer according to claim 4, characterized in that the conduit (8) is substantially straight.
6、 根据权利要求 4所述的管道苛化器， 其特征在于， 所述连接管 (6)为弯管。  6. Pipe causticizer according to claim 4, characterized in that the connecting pipe (6) is a bent pipe.
7、 根据权利要求 6所述的管道苛化器， 其特征在于， 所述的弯管 (6)属于大弯曲半径的 70° -120° 弯管， 其弯曲半径为 4-20倍弯管公 称直径。  7. The pipe causticizer according to claim 6, wherein the elbow (6) belongs to a 70°-120° elbow with a large bending radius, and the bending radius is 4-20 times the nominal pipe bend. diameter.
8、根据权利要求 3所述的管道苛化器， 其特征在于， 所述导管（8) 的数量为 2- 20个。  The pipe causticizer according to claim 3, characterized in that the number of the conduits (8) is from 2 to 20.
9、根据权利要求 3所述的管道苛化器， 其特征在于， 所述导管（8) 为钢管。  9. Pipe causticizer according to claim 3, characterized in that the conduit (8) is a steel pipe.
10、 根据权利要求 1所迷的管道苛化器， 其特征在于， 所述混合器 包括设置在管道内壁上的一个或多个静态混合单元（9) 。  10. Pipe causticizer according to claim 1, characterized in that the mixer comprises one or more static mixing units (9) arranged on the inner wall of the pipe.
11、 根据权利要求 3所述的管道苛化器， 其特征在于， 所述混合器 包括多个静态混合单元 （9) ， 每个导管 （8) 内壁上设有至少一个静 态混合单元 （9) 。  The pipe causticizer according to claim 3, characterized in that the mixer comprises a plurality of static mixing units (9), and at least one static mixing unit (9) is provided on the inner wall of each conduit (8) .
12、 根据权利要求 10或 11所述的管道苛化器， 其特征在于， 所述 静态混合单元（9)是内部为不规则螺旋的静态混合单元。  12. Pipe causticizer according to claim 10 or 11, characterized in that the static mixing unit (9) is a static mixing unit with an irregular spiral inside.
13、 根据权利要求 1所述的管道苛化器， 其特征在于， 所述加热器 为蒸汽加热套（7) 。 13. The pipe causticizer according to claim 1, wherein said heater Heat the sleeve (7) for steam.
14、 根据权利要求 3所述的管道苛化器， 其特征在于， 所述加热器 包括设置在每个导管 （8)上的蒸汽加热套（7) 。  14. Pipe causticizer according to claim 3, characterized in that the heater comprises a steam heating jacket (7) arranged on each conduit (8).
15、 根据权利要求 14所述的管道苛化器， 其特征在于， 每个蒸汽 加热套（7)上设置一膨胀节。  15. Pipe causticifier according to claim 14, characterized in that each steam heating jacket (7) is provided with an expansion joint.
16、 根据权利要求 14所述的管道苛化器， 其特征在于， 每个蒸汽 加热套（ 7 ) 均带有蒸汽进口 （ 1 )和冷凝水出口 （ 2 ) 。 16. Pipe causticifier according to claim 14, characterized in that each steam heating jacket (7) has a steam inlet (1) and a condensate outlet ( 2 ).
17、 根据权利要求 12所述的管道苛化器， 其特征在于， 所述的静 态混合单元 （9)与导管 （8)为焊接或法兰连接。  17. Pipe causticifier according to claim 12, characterized in that the static mixing unit (9) is welded or flanged to the conduit (8).
PCT/CN2008/001428 2007-08-23 2008-08-05 A pipe-type causticizer WO2009026781A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2008291570A AU2008291570B2 (en) 2007-08-23 2008-08-05 A pipe-type causticizer

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN200710012558.1 2007-08-23
CNA2007100125581A CN101372349A (en) 2007-08-23 2007-08-23 Pipeline causticizer

Publications (1)

Publication Number Publication Date
WO2009026781A1 true WO2009026781A1 (en) 2009-03-05

Family

ID=40386666

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2008/001428 WO2009026781A1 (en) 2007-08-23 2008-08-05 A pipe-type causticizer

Country Status (3)

Country Link
CN (1) CN101372349A (en)
AU (1) AU2008291570B2 (en)
WO (1) WO2009026781A1 (en)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS538668A (en) * 1976-07-13 1978-01-26 Denki Kagaku Kogyo Kk Extruder for thermoplastic resin foam
SU639510A1 (en) * 1977-09-27 1978-12-30 Таллинская Кондитерская Фабрика "Калев" Fruit jelly production line
SU827137A1 (en) * 1979-06-01 1981-05-07 Казанский Научно-Исследовательскийтехнологический И Проектный Инсти-Тут Химико-Фотографической Промыш-Ленности Static mixer
JPH04156901A (en) * 1990-10-22 1992-05-29 Asahi Chem Ind Co Ltd Method and device for continuously concentrating viscous solution
JPH067799A (en) * 1992-06-26 1994-01-18 Kubota Corp Transport and drying method by dehydrated cake pipeline
JPH09255744A (en) * 1996-03-25 1997-09-30 Sumitomo Bakelite Co Ltd Production of phenol resin
JPH09255745A (en) * 1996-03-25 1997-09-30 Sumitomo Bakelite Co Ltd Production of phenol resin
JP2003171471A (en) * 2001-12-10 2003-06-20 Fuji Photo Film Co Ltd Method of preparation of cellulose acetate dope

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS538668A (en) * 1976-07-13 1978-01-26 Denki Kagaku Kogyo Kk Extruder for thermoplastic resin foam
SU639510A1 (en) * 1977-09-27 1978-12-30 Таллинская Кондитерская Фабрика "Калев" Fruit jelly production line
SU827137A1 (en) * 1979-06-01 1981-05-07 Казанский Научно-Исследовательскийтехнологический И Проектный Инсти-Тут Химико-Фотографической Промыш-Ленности Static mixer
JPH04156901A (en) * 1990-10-22 1992-05-29 Asahi Chem Ind Co Ltd Method and device for continuously concentrating viscous solution
JPH067799A (en) * 1992-06-26 1994-01-18 Kubota Corp Transport and drying method by dehydrated cake pipeline
JPH09255744A (en) * 1996-03-25 1997-09-30 Sumitomo Bakelite Co Ltd Production of phenol resin
JPH09255745A (en) * 1996-03-25 1997-09-30 Sumitomo Bakelite Co Ltd Production of phenol resin
JP2003171471A (en) * 2001-12-10 2003-06-20 Fuji Photo Film Co Ltd Method of preparation of cellulose acetate dope

Also Published As

Publication number Publication date
AU2008291570A1 (en) 2009-03-05
AU2008291570B2 (en) 2012-03-15
CN101372349A (en) 2009-02-25

Similar Documents

Publication Publication Date Title
WO2017107304A1 (en) Fusion mixer for processing high-viscosity material
DK2622297T3 (en) Waste heat boiler
JP3274280B2 (en) High pressure reaction vessel equipment
WO2009026781A1 (en) A pipe-type causticizer
CN106492734A (en) A kind of Chemical Manufacture highly effective reaction kettle
CN205843436U (en) A kind of heat exchanger of thermal source Multi-class propagation
JP2010534312A (en) Flameless combustion heater
CN209173918U (en) A kind of gas liquid reaction kettle device
CN207622577U (en) A kind of heat exchanger
CN207006932U (en) A kind of heat exchanger
CN102853709A (en) Multi-double-pipe connecting structure for heat exchangers
CN201121133Y (en) Pipeline causticizing apparatus
CN210400079U (en) Heat exchanger for heating air by steam
CN102944128A (en) Exhaust heat recovery device of textile printing and dyeing forming machine
CN202580607U (en) Liquid chlorine gasification device
CN207569906U (en) A kind of heat exchanger of improvement
CN206369489U (en) The heat exchanger of indirect steam
EP2424652B1 (en) Catalyst reaction apparatus and process
CN200972341Y (en) Conversion turbulence modified plasma high temp. heat exchange set
CN213050524U (en) Medicine distillation reation kettle
CN202023107U (en) Black liquor heater
WO2008038363A1 (en) Heat exchanger
CN217275723U (en) Novel baffle type snakelike heat exchange tube
CN212327451U (en) Chemical waste gas conduction device that flexibility is strong
CN217154159U (en) Boiler system

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 08783617

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 2008291570

Country of ref document: AU

NENP Non-entry into the national phase

Ref country code: DE

ENP Entry into the national phase

Ref document number: 2008291570

Country of ref document: AU

Date of ref document: 20080805

Kind code of ref document: A

122 Ep: pct application non-entry in european phase

Ref document number: 08783617

Country of ref document: EP

Kind code of ref document: A1