Diaphragm electrolytic cell for titanium black production

Abstract

The utility model relates to the technical field of titanium black preparation, in particular to a diaphragm electrolytic cell for titanium black production, which comprises an electrolytic cell body, a plurality of partition plates are arranged in the electrolytic cell body and can divide the electrolytic cell body into a plurality of electrolytic partition cells, a support cover plate is arranged at the top of each partition plate, and the support cover plates are arranged at the bottom of the electrolytic cell body. A plurality of exhaust openings are formed in the supporting cover plate, a sealing cover body is arranged at the top of the electrolytic bath body, and the sealing cover body is funnel-shaped; an insertion groove is formed in the inner wall of the sealing cover body, the insertion groove can be inserted into the top of the electrolytic bath body, a sealing ring is fixed below the sealing cover body, the sealing ring is inserted into a butt-joint groove body, the butt-joint groove body is arranged at the top of the electrolytic bath body, and the butt-joint groove body is filled with an alkali solution. The diaphragm electrolytic cell for titanium black production has good sealing performance and can prevent chlorine from leaking.

Description

Technical Field

[0001] The utility model relates to the technical field of titanium oxide preparation, in particular to a diaphragm electrolytic cell for titanium oxide production. Background Art

[0002] Titanium dioxide is a new functional material with Ti4O7 as the main active component. It has good electrical conductivity at room temperature, high chemical stability, corrosion resistance and good electrochemical properties. Titanium dioxide is widely used in batteries, electrometallurgy, electroplating, chemical industry and difficult-to-degrade industrial wastewater treatment.

[0003] The production of titanium dioxide uses diaphragm electrolysis. In the diaphragm electrolyzer, the tetravalent titanium ions in the titanium tetrachloride solution gain electrons and are reduced. The chloride ions in the titanium tetrachloride solution pass through the diaphragm under the action of the electric field. The chloride ions in the anode electrolyte lose electrons on the anode plate and are oxidized into chlorine. Since chlorine is a highly toxic gas with a strong pungent odor, it is necessary to ensure that the chlorine electrolyzer has good sealing properties. Utility Model Content

[0004] Purpose of the utility model: The utility model provides a diaphragm electrolytic cell for titanium dioxide production, which has good sealing performance and can prevent chlorine leakage.

[0005] In order to achieve the above object, the technical solution of the utility model is as follows:

[0006] A diaphragm electrolytic cell for titanium dioxide production, comprising an electrolytic cell body, a plurality of partition plates arranged in the electrolytic cell body, the partition plates being capable of dividing the electrolytic cell body into a plurality of electrolytic compartments, a support cover plate being arranged on the top of the partition plates, a plurality of exhaust openings being opened on the support cover plate, a sealing cover body being arranged on the top of the electrolytic cell body, the sealing cover body being in the shape of a funnel;

[0007] An inserting groove is provided on the inner wall of the sealing cover body, and the inserting groove can be inserted into the top of the electrolytic cell body. A sealing ring is fixed below the sealing cover body, and the sealing ring is inserted in a docking groove body. The docking groove body is arranged on the top of the electrolytic cell body, and the docking groove body is filled with an alkaline solution.

[0008] As an improvement: an air delivery pipe is provided on the top of the sealing cover body, and an air delivery pump is provided on the air delivery pipe.

[0009] As an improvement: a gas concentration detection sensor is provided on the inner wall of the sealing cover.

[0010] As an improvement: a first connecting rod and a second connecting rod are respectively provided on both sides of the sealing cover body;

[0011] A first telescopic cylinder is provided below the first connecting rod, and a piston rod of the first telescopic cylinder is fixedly connected to the first connecting rod; a second telescopic cylinder is provided below the second connecting rod, and a piston rod of the second telescopic cylinder is fixedly connected to the second connecting rod;

[0012] The first telescopic cylinder is vertically fixed upward on the left side of the electrolytic cell body through a first support plate, and the second telescopic cylinder is vertically fixed upward on the right side of the electrolytic cell body through a second support plate.

[0013] As an improvement: an electrolytic anode plate and an electrolytic cathode plate are provided in the electrolytic cell, and an electrolytic diaphragm is provided between the electrolytic cathode plate and the electrolytic anode plate;

[0014] The electrolytic anode plate, the electrolytic cathode plate and the electrolytic diaphragm are all fixed on the partition plate, and a liquid inlet pipe is provided below the electrolytic cell and an overflow pipe is provided on the top.

[0015] In summary, the utility model has the following beneficial effects:

[0016] 1. When electrolysis is performed, the first telescopic cylinder and the second telescopic cylinder move downward, inserting the plug-in groove on the sealing cover body into the top of the electrolytic cell body, so that the chlorine gas is well sealed in the cavity formed by the sealing cover body and the electrolytic cell body. The gas concentration detection sensor can detect the current chlorine concentration, and the gas delivery pump can timely deliver the produced chlorine gas to the external spray box;

[0017] 2. The sealing ring under the sealing cover can prevent chlorine gas from leaking. Even if there is a small amount of leakage, it will dissolve in the alkaline solution and will not leak. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solution in the present practical embodiment, the drawings required for use in the embodiment or the description of the prior art will be briefly introduced below.

[0019] Figure 1 It is a schematic diagram of the overall structure of a diaphragm electrolyzer for titanium dioxide production;

[0020] Figure 2 for Figure 1 The structural diagram of part A in the figure;

[0021] Wherein: 1. electrolytic cell body; 2. partition plate; 3. electrolytic cell; 4. support cover plate; 5. exhaust opening; 6. sealing cover body; 7. plug-in groove; 8. sealing ring; 9. docking cell body; 10. alkaline solution; 11. gas pipe; 12. gas pump; 13. gas concentration detection sensor; 14. first connecting rod; 15. second connecting rod; 16. first telescopic cylinder; 17. second telescopic cylinder; 18. first support plate; 19. second support plate; 20. electrolytic anode plate; 21. electrolytic cathode plate; 22. electrolytic diaphragm; 23. liquid inlet pipe; 24. overflow pipe. DETAILED DESCRIPTION

[0022] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0023] Please refer to Figure 1-Figure 2 A diaphragm electrolytic cell for titanium dioxide production includes an electrolytic cell body 1, a plurality of partition plates 2 are arranged in the electrolytic cell body 1, and the partition plates 2 can divide the electrolytic cell body 1 into a plurality of electrolytic compartments 3, a support cover plate 4 is arranged on the top of the partition plate 2, and a plurality of exhaust openings 5 ​​are opened on the support cover plate 4, and a sealing cover body 6 is arranged on the top of the electrolytic cell body 1, and the sealing cover body 6 is funnel-shaped;

[0024] An inserting groove 7 is provided on the inner wall of the sealing cover body 6, and the inserting groove 7 can be inserted into the top of the electrolytic cell body 1. A sealing ring 8 is fixed below the sealing cover body 6, and the sealing ring 8 is inserted into a docking groove body 9. The docking groove body 9 is arranged at the top of the electrolytic cell body 1, and the docking groove body 9 is filled with an alkaline solution 10.

[0025] A gas delivery pipe 11 is provided on the top of the sealing cover body 6, and a gas delivery pump 12 is provided on the gas delivery pipe 11. The gas delivery pump 12 can deliver chlorine gas to the external spray box.

[0026] A gas concentration detection sensor 13 is provided on the inner wall of the sealing cover 6 to detect the current chlorine concentration.

[0027] A first connecting rod 14 and a second connecting rod 15 are respectively provided on both sides of the sealing cover body 6, and a first telescopic cylinder 16 is provided below the first connecting rod 14, and a piston rod of the first telescopic cylinder 16 is fixedly connected to the first connecting rod 14, and a second telescopic cylinder 17 is provided below the second connecting rod 15, and a piston rod of the second telescopic cylinder 17 is fixedly connected to the second connecting rod 15; the first telescopic cylinder 16 is vertically fixed upward to the left side surface of the electrolytic cell body 1 through a first support plate 18, and the second telescopic cylinder 17 is vertically fixed upward to the right side surface of the electrolytic cell body 1 through a second support plate 19.

[0028] An electrolytic anode plate 20 and an electrolytic cathode plate 21 are provided in the electrolytic cell 3, and an electrolytic diaphragm 22 is provided between the electrolytic cathode plate 21 and the electrolytic anode plate 20; the electrolytic anode plate 20, the electrolytic cathode plate 21 and the electrolytic diaphragm 22 are all fixed on the partition plate 2, and a liquid inlet pipe 23 is provided at the bottom of the electrolytic cell 3, and an overflow pipe 24 is provided at the top thereof.

[0029] Working principle: When electrolysis is carried out, the first telescopic cylinder 16 and the second telescopic cylinder 17 move downward, and the plug-in groove 7 on the sealing cover 6 is inserted into the top of the electrolytic cell body 1, so that the chlorine gas is well sealed in the cavity formed by the sealing cover 6 and the electrolytic cell body 1. The gas concentration detection sensor 13 can detect the current chlorine concentration, and the gas pump 12 can promptly transport the produced chlorine gas to the external spray box; the sealing ring 8 under the sealing cover 6 can prevent chlorine gas from leaking. Even if there is a small amount of leakage, it will dissolve in the alkaline solution 10 and will not leak.

[0030] When the electrolytic anode plate 20, the electrolytic cathode plate 21, etc. need to be repaired or replaced, after the chlorine is exhausted, the first telescopic cylinder 16 and the second telescopic cylinder 17 can be moved upward to move the sealing cover body 6 upward, thereby facilitating repair and replacement.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the specific implementation methods of the utility model can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the utility model, which should be included in the scope of the technical solution for protection of the utility model.

Claims

1. A diaphragm electrolyzer for titanium dioxide production, characterized in that: The invention comprises an electrolytic cell body, wherein a plurality of partition plates are arranged in the electrolytic cell body, wherein the partition plates can divide the electrolytic cell body into a plurality of electrolytic compartments, a supporting cover plate is arranged on the top of the partition plates, wherein a plurality of exhaust openings are opened on the supporting cover plate, and a sealing cover body is arranged on the top of the electrolytic cell body, wherein the sealing cover body is in a funnel shape; An inserting groove is provided on the inner wall of the sealing cover body, and the inserting groove can be inserted into the top of the electrolytic cell body. A sealing ring is fixed below the sealing cover body, and the sealing ring is inserted in a docking groove body. The docking groove body is arranged on the top of the electrolytic cell body, and the docking groove body is filled with an alkaline solution.

2. The diaphragm electrolytic cell for titanium dioxide production according to claim 1, characterized in that: An air delivery pipe is arranged on the top of the sealing cover body, and an air delivery pump is arranged on the air delivery pipe.

3. The diaphragm electrolytic cell for titanium dioxide production according to claim 1, characterized in that: A gas concentration detection sensor is arranged on the inner wall of the sealing cover.

4. The diaphragm electrolytic cell for titanium dioxide production according to claim 1, characterized in that: A first connecting rod and a second connecting rod are respectively provided on both sides of the sealing cover body; A first telescopic cylinder is provided below the first connecting rod, and a piston rod of the first telescopic cylinder is fixedly connected to the first connecting rod; a second telescopic cylinder is provided below the second connecting rod, and a piston rod of the second telescopic cylinder is fixedly connected to the second connecting rod; The first telescopic cylinder is vertically fixed upward on the left side surface of the electrolytic cell body through a first support plate, and the second telescopic cylinder is vertically fixed upward on the right side surface of the electrolytic cell body through a second support plate.

5. The diaphragm electrolytic cell for titanium dioxide production according to claim 1, characterized in that: An electrolytic anode plate and an electrolytic cathode plate are arranged in the electrolytic cell, and an electrolytic diaphragm is arranged between the electrolytic cathode plate and the electrolytic anode plate; The electrolytic anode plate, the electrolytic cathode plate and the electrolytic diaphragm are all fixed on the partition plate, and a liquid inlet pipe is provided below the electrolytic cell and an overflow pipe is provided on the top.

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