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Activated cathode diaphragm electrolyzer with metal anodes

A metal anode and active cathode technology, applied in electrolysis process, electrolysis components, cells, etc., can solve the problems of high voltage, poor use effect and high DC power consumption of electrolysis equipment, and achieve low DC power consumption, reasonable structure and uniform pole spacing Effect

Inactive Publication Date: 2003-04-02
BLUESTAR BEIJING CHEM MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing wire braided mesh cathode diaphragm electrolyzer has poor use effect, and the voltage of its electrolysis equipment is relatively high, which leads to high DC power consumption per ton of caustic soda (NaOH) and high cost

Method used

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  • Activated cathode diaphragm electrolyzer with metal anodes
  • Activated cathode diaphragm electrolyzer with metal anodes
  • Activated cathode diaphragm electrolyzer with metal anodes

Examples

Experimental program
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Effect test

Embodiment 1

[0038] The active cathode diaphragm method metal anode electrolysis cell shown in Figures 1 and 2 is mainly composed of a cell cover 9, a cathode box 14, an anode assembly 28 and a dripper 4, etc., and the shell 27 is also provided with a hydrogen outlet 5, The lye outlet 20 and the adsorption port 18. The cathode box 14 is shown in Figures 5 and 6, which is composed of a cathode box shell 27 and a cathode plate mesh bag 3. The cathode box shell 27 is provided with a hydrogen outlet 5 and a lye outlet 20. The side of the cathode box 14 is welded with " The upper flange of the cathode box 14 in the shape of the cathode copper plate 15 is sealed and fixed with the tank cover 9 through the rubber gasket 11 and the C-shaped clip 10, as shown in Figure 4. The tank cover 9 has a chlorine outlet 6, a salt water inlet 7 and explosion-proof There is an explosion-proof film at the port 8, the explosion-proof port 8. To prevent corrosion, the tank cover 9 is lined with an anti-corrosion lay...

Embodiment 2

[0050] In the active cathode diaphragm method metal anode electrolytic cell of the present invention, the structure of the cathode frame 22 of the cathode plate mesh bag 3 can also adopt such as Figure 13 , 14 The slub steel structure shown in 15, 16 is formed by welding slub steel 30 and flat steel bars 31 with square steel, and slub steel 30 is rolled by round steel. In order to provide enough space for the gas to rise during the electrolysis reaction, dozens of round holes are punched in the flat steel bar 31, and the place where the cathode mesh 21 and the slub joints of the slub steel 30 are in contact are welded firmly with argon arc welding. The advantages of the cathode framework of this structure are the uniformity of the plane, better rigidity, simple welding, not easy to deform, and uniform current distribution, which is beneficial to the entire electrolytic cell to improve the electrolysis performance and reduce the DC power consumption of ton NaOH.

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Abstract

An electrolyzer with metallic anode for aetive cathode diaphragm method is composed of cover, cathode box, anode assembly and drip. Said cathode box consists of casing, cathode net bag and cathode copper plate. Said cathode net bag consists of skeleton and net made up of multi-hole plate and fixed to said skeleton. Said anode assembly is composed of anode plate, titanium liner, bottom plate of electrolyzer, copper plate and copper nut.

Description

[0001] (1) Field [0002] The invention relates to an active cathode diaphragm method metal anode electrolyzer, which belongs to the equipment field of the chemical chlor-alkali industry. (2) Background technology [0003] In the electrolysis industry, especially in the electrolysis of alkali metal chloride aqueous solutions in the chlor-alkali industry, the use of traditional diaphragm-method metal anode electrolyzers still dominates in China. The existing iron wire woven mesh cathode diaphragm electrolyzer has poor use effect, and its electrolysis equipment has a high voltage, which results in high DC power consumption and high cost per ton of caustic soda (NaOH). (3) Contents of the invention [0004] The main problem solved by the present invention is to overcome the disadvantage of high DC power consumption per ton of caustic soda (NaOH) caused by the high cell voltage in the existing diaphragm electrolyzer, and provide an active cathode diaphragm method with low power consum...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25B1/46C25B9/19
Inventor 邢家悟张其林张连宝李海要王玉兰
Owner BLUESTAR BEIJING CHEM MACHINERY
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