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Activated cathode diaphragm electrolyzer with metal anodes

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

Inactive Publication Date: 2005-02-16
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

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Effect test

Embodiment 1

[0038] The active cathode diaphragm method metal anode electrolyzer shown in Figure 1 and 2 is mainly composed of a cell cover 9, a cathode box 14, an anode assembly 28 and a dripper 4, and the housing 27 is also provided with a hydrogen outlet 5, an alkali Liquid outlet 20 and adsorption port 18. Cathode box 14 such as Figure 5 , 6 Shown, be to be made up of cathode case housing 27 and cathode plate mesh bag 3, have hydrogen outlet 5 and lye outlet 20 on the cathode case housing 27, the side of cathode case 14 is welded with Shaped cathode copper plate 15, the flange on the cathode case 14 is sealed and fixed with the tank cover 9 by rubber gasket 11 and C-type clip 10, as shown in Figure 4. The tank cover 9 has a chlorine gas outlet 6, a salt water inlet 7 and an explosion-proof port 8, and the explosion-proof port 8 has an explosion-proof film. In order to prevent corrosion, the tank cover 9 is lined with an anti-corrosion layer of about 6mm. Other conventional ports s...

Embodiment 2

[0050] In the active cathode membrane method metal anode electrolyzer of the present invention, the structure of the cathode frame 22 of the cathode plate net bag 3 can also adopt such as Figure 13 , 14 , 15,16 shown bamboo steel structure, bamboo steel 30, flat steel bar 31 and square steel are welded, and bamboo steel 30 is formed by rolling of round steel. In order to have enough rising space for the gas during the electrolytic reaction process, dozens of round holes are punched on the flat steel bar 31, and the places where the cathode mesh 21 contacts the bamboo joints of the bamboo steel 30 are firmly welded with argon arc welding. The advantages of the cathode skeleton of this structure are the uniformity and rigidity of the plane, the welding is simple, the deformation is not easy, the current distribution is uniform, and it is beneficial to improve the electrolysis performance of the whole electrolytic cell and reduce the DC power consumption per ton of 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 a diaphragm method metal anode electrolytic cell, which is applied to the equipment field of the chemical chlor-alkali industry. (2) Background technology [0003] In the electrolysis industry, especially the electrolysis of alkali metal chloride aqueous solution in the chlor-alkali industry, the use of the traditional diaphragm metal anode electrolyzer is still dominant in China. The use effect of the existing wire braided mesh cathode diaphragm electrolyzer is poor, and the voltage of the electrolysis equipment is relatively high, which leads to high DC power consumption per ton of caustic soda (NaOH) and high cost. (3) Contents of the invention [0004] The main problem to be solved by the present invention is: to overcome the shortage of high DC power consumption per ton of caustic soda (NaOH) caused by the relatively high cell voltage in the existing diaphragm electrolyzer, and to provide an active cathode diaphragm met...

Claims

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Application Information

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Patent Type & Authority Patents(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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