CN106637284B - A kind of medium temperature electrolysis Carbon anode for fluorine production plate screw hole dipping method and device - Google Patents
A kind of medium temperature electrolysis Carbon anode for fluorine production plate screw hole dipping method and device Download PDFInfo
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Abstract
Description
技术领域technical field
本发明涉及一种炭阳极板优化改进技术，具体为中温电解制氟用炭阳极板螺孔浸渍方法及专用装置。The invention relates to an optimization and improvement technology for a carbon anode plate, in particular to a method for impregnating a screw hole of a carbon anode plate for medium-temperature electrolytic fluorine production and a special device.
背景技术Background technique
现有10kA中温电解槽所用炭阳极板采用螺杆连接方式，使用过程中极化次数较多，寿命较短。当电解槽退槽后，经常出现铜螺杆腐蚀、炭阳极板沿铜螺杆方向断裂等现象。经分析，铜螺杆与炭阳极板连接处的密封性差，在电解槽运行过程中，电解液从炭阳极板与铜螺杆之间的缝隙渗入，腐蚀铜螺杆，增加了炭阳极板和铜螺杆之间的接触电阻，造成阳极极化现象频繁发生；同时由于铜螺杆与炭阳极板的膨胀系数不同，受热膨胀时会导致炭阳极板断裂。The carbon anode plate used in the existing 10kA medium-temperature electrolytic cell adopts the screw connection method, and the polarization times are more during use, and the service life is shorter. When the electrolytic cell retreats, copper screw corrosion and carbon anode plate breakage along the direction of the copper screw often occur. After analysis, the seal between the copper screw and the carbon anode plate is poor. During the operation of the electrolytic cell, the electrolyte penetrates from the gap between the carbon anode plate and the copper screw, corrodes the copper screw, and increases the distance between the carbon anode plate and the copper screw. The contact resistance between them causes frequent anode polarization; at the same time, due to the difference in expansion coefficient between the copper screw and the carbon anode plate, the carbon anode plate will break when heated and expanded.
相关资料显示，对炭素制品采取浸渍工艺措施，能够降低其孔隙率，再经过固化、炭化处理后，其机械强度能够得到较大的提高，同时浸渍增密后的炭阳极板的膨胀系数也会有所增加。所以，对炭阳极板进行螺孔浸渍对提高螺孔密封性，防止其螺孔处胀裂、降低炭阳极板极化发生频次有积极作用。Relevant data show that the impregnation process measures for carbon products can reduce their porosity, and after curing and carbonization treatment, their mechanical strength can be greatly improved, and the expansion coefficient of carbon anode plates after impregnation and densification will also increase. has increased. Therefore, the impregnation of the screw hole of the carbon anode plate has a positive effect on improving the sealing performance of the screw hole, preventing the expansion and cracking of the screw hole, and reducing the frequency of polarization of the carbon anode plate.
但公开资料中并未详细说明其浸渍液的配方及经过螺孔浸渍的炭阳极板的技术指标，所以继续开展相关工作。However, the formulation of the impregnation solution and the technical indicators of the carbon anode plate impregnated with screw holes are not specified in the public information, so related work continues.
发明内容Contents of the invention
本发明要解决的技术问题是提供一种中温电解制氟用炭阳极板螺孔浸渍的工艺方法及装置，在确保安全操作的前提下提高炭阳极板螺孔周围材质的强度及膨胀系数等特殊性能指标，降低炭阳极板运行过程中的极化次数，延长炭阳极板的使用寿命。The technical problem to be solved by the present invention is to provide a process method and device for impregnating the screw hole of the carbon anode plate for medium-temperature electrolytic fluorine production, and to improve the strength and expansion coefficient of the material around the screw hole of the carbon anode plate under the premise of ensuring safe operation. Performance indicators, reduce the number of polarizations during the operation of the carbon anode plate, and prolong the service life of the carbon anode plate.
为了实现这一目的，本发明采取的技术方案是：In order to realize this object, the technical scheme that the present invention takes is:
一种中温电解制氟用炭阳极板螺孔浸渍装置，包括以下部件：A carbon anode plate screw hole impregnation device for medium-temperature electrolytic fluorine production, including the following components:
(1)框架：用于安放并固定中温电解制氟用炭阳极板；炭阳极板是600*300*70mm的长方体结构；框架在装入炭阳极板后上部依次安装方形垫片、方形法兰；(1) Frame: used to place and fix the carbon anode plate for medium-temperature electrolytic fluorine production; the carbon anode plate is a rectangular parallelepiped structure of 600*300*70mm; after the frame is loaded into the carbon anode plate, square gaskets and square flanges are installed in sequence on the upper part ;
(2)方形垫片：用于框架与方形法兰连接处的密封；(2) Square gasket: used for sealing the connection between the frame and the square flange;
(3)方形法兰：连接框架与壳体；(3) Square flange: connect the frame and the shell;
(4)壳体：设置在方形法兰上部，壳体下部盛装浸渍液，壳体上部用于承压并将浸渍液压入中温电解制氟用炭阳极板的螺孔内；壳体上部连接有放空管道及阀门、压空管道及阀门、漏斗、压力表连接管道及阀门；(4) Housing: set on the upper part of the square flange, the lower part of the housing contains the impregnating liquid, and the upper part of the housing is used to bear pressure and inject the impregnating fluid into the screw hole of the carbon anode plate for medium-temperature electrolytic fluorine production; the upper part of the housing is connected with Empty pipes and valves, compressed air pipes and valves, funnels, pressure gauge connection pipes and valves;
(5)放空管道及阀门：加入浸渍液时，使壳体内压力与大气压相同，保证浸渍液顺利加入壳体；(5) Empty pipes and valves: When adding impregnating liquid, make the pressure inside the shell equal to the atmospheric pressure to ensure that the impregnating liquid is smoothly added to the shell;
(6)压力表管道及阀门：用于指示加压及保压数值；(6) Pressure gauge pipes and valves: used to indicate pressurization and pressure holding values;
(7)压空管道及阀门：用于向浸渍装置内引入压缩空气；(7) Compressed air pipes and valves: used to introduce compressed air into the impregnation device;
(8)漏斗：用于向壳体内加入浸渍液；(8) Funnel: used to add impregnating liquid into the shell;
(9)螺栓：用于连接框架、方形垫片、方形法兰，组成整体的中温电解制氟用炭阳极板浸渍装置。(9) Bolts: Used to connect frames, square gaskets, and square flanges to form an integral carbon anode plate impregnation device for medium-temperature electrolytic fluorine production.
一种中温电解制氟用炭阳极板螺孔浸渍方法，包括如下步骤：A method for impregnating screw holes of a carbon anode plate for medium-temperature electrolytic fluorine production, comprising the following steps:
(一)对加工成型的中温电解制氟用炭阳极板上表面中心位置开设螺孔；(1) A screw hole is provided at the center of the upper surface of the processed carbon anode plate for medium-temperature electrolytic fluorine production;
(二)将打孔完成的炭阳极板装入螺孔浸渍装置的框架内，螺孔朝上；(2) The carbon anode plate completed by punching is packed into the frame of the screw hole impregnation device, with the screw hole facing upwards;
(三)依次安装方形垫片、方形法兰并用螺栓将框架、方形垫片、方形法兰紧固在一起；(3) Install square gaskets and square flanges in sequence and fasten the frame, square gaskets and square flanges together with bolts;
(四)关闭压力表阀门、压空阀门，开启放空阀门，将按照指定配方配制的浸渍液装入漏斗内；(4) Close the pressure gauge valve and air pressure valve, open the vent valve, and put the impregnating liquid prepared according to the specified formula into the funnel;
(五)待浸渍液进入壳体后关闭放空阀门、开启压力表阀门；(5) Close the vent valve and open the pressure gauge valve after the impregnating liquid enters the shell;
(六)启动空气压缩机并开启压空阀门，向螺孔浸渍装置的壳体内打入压力并进行保压，直至中温电解制氟用炭阳极板表面出现浸渍液时视为浸渍操作结束。(6) Start the air compressor and open the pressure valve, inject pressure into the shell of the screw hole impregnation device and maintain the pressure until the impregnation liquid appears on the surface of the carbon anode plate for medium-temperature electrolytic fluorine production. The impregnation operation is considered to be completed.
进一步的，如上所述的一种中温电解制氟用炭阳极板螺孔浸渍方法，步骤(一)中，螺孔的孔径为20mm，孔深为450mm，孔距为120mm，孔数为2个。Further, in the method for impregnating screw holes of a carbon anode plate for medium-temperature electrolytic fluorine production as described above, in step (1), the diameter of the screw holes is 20 mm, the hole depth is 450 mm, the hole distance is 120 mm, and the number of holes is 2 .
进一步的，如上所述的一种中温电解制氟用炭阳极板螺孔浸渍方法，步骤(四)中，浸渍液的体积为1L～3L。Furthermore, in the method for impregnating screw holes of carbon anode plates for medium-temperature electrolytic fluorine production as described above, in step (4), the volume of the impregnating solution is 1L-3L.
进一步的，如上所述的一种中温电解制氟用炭阳极板螺孔浸渍方法，步骤(六)中，向螺孔浸渍装置的壳体内打入1.0MPa的压力。Further, in the method for impregnating the screw holes of the carbon anode plate for medium-temperature electrolytic fluorine production as described above, in step (6), a pressure of 1.0 MPa is injected into the shell of the screw hole impregnating device.
本发明通过加压浸渍的工艺方法，完成了中温电解制氟用炭阳极板螺孔浸渍，成功实现了中温电解制氟用炭阳极板螺孔周围材质特殊性能的改善，降低了炭阳极板运行过程中的极化次数，同时也较大程度上延长了炭阳极板的使用寿命。The present invention completes the impregnation of the screw hole of the carbon anode plate for medium-temperature electrolytic fluorine production through the process method of pressure impregnation, successfully realizes the improvement of the special properties of the material around the screw hole of the carbon anode plate for medium-temperature electrolytic fluorine production, and reduces the operation of the carbon anode plate The number of polarizations in the process also prolongs the service life of the carbon anode plate to a large extent.
附图说明Description of drawings
图1为中温电解制氟用炭阳极板螺孔浸渍装置主视图；Fig. 1 is the front view of the carbon anode plate screw hole impregnation device for medium-temperature electrolytic fluorine production;
图2为中温电解制氟用炭阳极板螺孔浸渍装置侧视图；Figure 2 is a side view of a carbon anode plate screw hole impregnation device for medium-temperature electrolytic fluorine production;
图3为中温电解制氟用炭阳极板螺孔浸渍装置A-A截面剖视图。Fig. 3 is an A-A sectional view of a carbon anode plate screw hole impregnation device for medium-temperature electrolytic fluorine production.
图中：1、框架；2、方形垫片；3、方形法兰；4、壳体；5、放空管道及阀门；6、压力表管道及阀门；7、压空管道及阀门；8、漏斗；9、螺栓。In the figure: 1. Frame; 2. Square gasket; 3. Square flange; 4. Shell; 5. Vent pipe and valve; 6. Pressure gauge pipe and valve; 7. Compression pipe and valve; 8. Funnel ; 9, bolts.
具体实施方式Detailed ways
下面结合附图和具体实施例对本发明技术方案进行详细说明。The technical solution of the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.
如图1到图3所示，本发明一种中温电解制氟用炭阳极板螺孔浸渍装置，包括以下部件：As shown in Figures 1 to 3, a carbon anode plate screw hole impregnation device for medium-temperature electrolytic fluorine production according to the present invention includes the following components:
(1)框架：用于安放并固定中温电解制氟用炭阳极板；炭阳极板是600*300*70mm的长方体结构；框架在装入炭阳极板后上部依次安装方形垫片、方形法兰；(1) Frame: used to place and fix the carbon anode plate for medium-temperature electrolytic fluorine production; the carbon anode plate is a rectangular parallelepiped structure of 600*300*70mm; after the frame is loaded into the carbon anode plate, square gaskets and square flanges are installed in sequence on the upper part ;
(2)方形垫片：用于框架与方形法兰连接处的密封；(2) Square gasket: used for sealing the connection between the frame and the square flange;
(3)方形法兰：连接框架与壳体；(3) Square flange: connect the frame and the shell;
(4)壳体：设置在方形法兰上部，壳体下部盛装浸渍液，壳体上部用于承压并将浸渍液压入中温电解制氟用炭阳极板的螺孔内；壳体上部连接有放空管道及阀门、压空管道及阀门、漏斗、压力表连接管道及阀门；(4) Housing: set on the upper part of the square flange, the lower part of the housing contains the impregnating liquid, and the upper part of the housing is used to bear pressure and inject the impregnating fluid into the screw hole of the carbon anode plate for medium-temperature electrolytic fluorine production; the upper part of the housing is connected with Empty pipes and valves, compressed air pipes and valves, funnels, pressure gauge connection pipes and valves;
(5)放空管道及阀门：加入浸渍液时，使壳体内压力与大气压相同，保证浸渍液顺利加入壳体；(5) Empty pipes and valves: When adding impregnating liquid, make the pressure inside the shell equal to the atmospheric pressure to ensure that the impregnating liquid is smoothly added to the shell;
(6)压力表管道及阀门：用于指示加压及保压数值；(6) Pressure gauge pipes and valves: used to indicate pressurization and pressure holding values;
(7)压空管道及阀门：用于向浸渍装置内引入压缩空气；(7) Compressed air pipes and valves: used to introduce compressed air into the impregnation device;
(8)漏斗：用于向壳体内加入浸渍液；(8) Funnel: used to add impregnating liquid into the shell;
(9)螺栓：用于连接框架、方形垫片、方形法兰，组成整体的中温电解制氟用炭阳极板浸渍装置。(9) Bolts: Used to connect frames, square gaskets, and square flanges to form an integral carbon anode plate impregnation device for medium-temperature electrolytic fluorine production.
一种中温电解制氟用炭阳极板螺孔浸渍方法，包括如下步骤：A method for impregnating screw holes of a carbon anode plate for medium-temperature electrolytic fluorine production, comprising the following steps:
(一)对加工成型的中温电解制氟用炭阳极板上表面中心位置开设螺孔；螺孔的孔径为20mm，孔深为450mm，孔距为120mm，孔数为2个；(1) Set a screw hole at the center of the upper surface of the processed and formed carbon anode plate for electrolytic fluorine production; the diameter of the screw hole is 20mm, the hole depth is 450mm, the hole distance is 120mm, and the number of holes is 2;
(二)将打孔完成的炭阳极板装入螺孔浸渍装置的框架内，螺孔朝上；(2) The carbon anode plate completed by punching is packed into the frame of the screw hole impregnation device, with the screw hole facing upwards;
(三)依次安装方形垫片、方形法兰并用螺栓将框架、方形垫片、方形法兰紧固在一起；(3) Install square gaskets and square flanges in sequence and fasten the frame, square gaskets and square flanges together with bolts;
(四)关闭压力表阀门、压空阀门，开启放空阀门，将按照指定配方配制的1L～3L浸渍液装入漏斗内；(4) Close the pressure gauge valve and air pressure valve, open the vent valve, and put 1L to 3L of impregnation solution prepared according to the specified formula into the funnel;
(五)待浸渍液进入壳体后关闭放空阀门、开启压力表阀门；(5) Close the vent valve and open the pressure gauge valve after the impregnating liquid enters the shell;
(六)启动空气压缩机并开启压空阀门，向螺孔浸渍装置的壳体内打入1.0MPa的压力并进行保压，直至中温电解制氟用炭阳极板表面出现浸渍液时视为浸渍操作结束。(6) Start the air compressor and open the pressure valve, inject a pressure of 1.0 MPa into the shell of the screw hole impregnation device and keep the pressure until the impregnation liquid appears on the surface of the carbon anode plate for medium-temperature electrolytic fluorine production, which is regarded as the impregnation operation Finish.
Claims (6)
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| CN1137808A (en) * | 1994-09-14 | 1996-12-11 | 英国核燃料公共有限公司 | Fluorine cell |
| CN200992578Y (en) * | 2006-11-30 | 2007-12-19 | 国营八一四厂 | 10kA carbon steel medium-temperature fluorine production electrolytic tank |
| CN101319331A (en) * | 2008-07-23 | 2008-12-10 | 核工业理化工程研究院华核新技术开发公司 | Production method for copper containing carbon anode for fluorine production |
| CN102560531A (en) * | 2012-03-15 | 2012-07-11 | 上海交通大学 | Anti-oxidation treatment method for graphite anode for chlor-alkali industry |
| CN203613268U (en) * | 2013-11-15 | 2014-05-28 | 苏州金宏气体股份有限公司 | Device for producing fluorine through electrolyzing hydrogen fluoride by utilizing medium-temperature electrolytic cell |
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2016
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1137808A (en) * | 1994-09-14 | 1996-12-11 | 英国核燃料公共有限公司 | Fluorine cell |
| CN200992578Y (en) * | 2006-11-30 | 2007-12-19 | 国营八一四厂 | 10kA carbon steel medium-temperature fluorine production electrolytic tank |
| CN101319331A (en) * | 2008-07-23 | 2008-12-10 | 核工业理化工程研究院华核新技术开发公司 | Production method for copper containing carbon anode for fluorine production |
| CN102560531A (en) * | 2012-03-15 | 2012-07-11 | 上海交通大学 | Anti-oxidation treatment method for graphite anode for chlor-alkali industry |
| CN203613268U (en) * | 2013-11-15 | 2014-05-28 | 苏州金宏气体股份有限公司 | Device for producing fluorine through electrolyzing hydrogen fluoride by utilizing medium-temperature electrolytic cell |
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