CN212894047U

CN212894047U - A electrolytic device for reducing COD in sewage

Info

Publication number: CN212894047U
Application number: CN202021501157.XU
Authority: CN
Inventors: 高玉国
Original assignee: Tianjin Huanyi Environmental Protection Technology Co ltd
Current assignee: Tianjin Huanyi Environmental Protection Technology Co ltd
Priority date: 2020-07-27
Filing date: 2020-07-27
Publication date: 2021-04-06
Anticipated expiration: 2030-07-27

Abstract

The utility model discloses an electrolysis device for reducing COD in sewage, which comprises a shell, wherein the two ends of the shell are respectively provided with a sewage outlet pipe and a sewage inlet pipe; an anode binding post is arranged on the shell body at a position close to one side of the sewage outlet pipe, a cathode binding post is arranged on a sealing cover opposite to the anode binding post, the outer sides of the anode binding post and the cathode binding post can be connected with an external lead for electrifying, the inner side of the anode binding post is connected with an anode sheet, and the inner side of the cathode binding post is connected with a cathode sheet; and a complex pole piece is arranged between the anode piece and the cathode piece in parallel. The anode sheet, the cathode sheet and the composite sheet all adopt titanium plates as matrixes, and active coatings are coated on the surfaces of the titanium plates. The utility model has the advantages that: under the condition of direct current, the device can generate active oxide to effectively reduce COD in sewage, and has the advantages of reasonable structure, convenient assembly and disassembly, higher efficiency and good economic and environmental benefits.

Description

A electrolytic device for reducing COD in sewage

Technical Field

The utility model belongs to the technical field of sewage treatment, concretely relates to an electrolytic device for reducing COD in sewage.

Background

Along with the rapid development of modern industry, a large amount of sewage is generated in more and more production process processes, wherein a large part of sewage is industrial wastewater with the characteristics of high concentration COD, high salinity and low biodegradability, and the realization of standard discharge by aiming at the effective treatment of the industrial wastewater is also one of the problems in the sewage treatment industry. The use of an electrochemical method, i.e., an electrolysis apparatus, is one of the important methods for effectively treating such industrial wastewater, and, of course, the electrolysis method is not limited to this application, and can also be used for other types of wastewater treatment such as domestic wastewater.

However, the existing sewage treatment electrolysis device has the following defects: the single-tank low-voltage and high-current usually result in higher cost of the direct-current power supply to be matched, or the more complicated external serial connection of the tanks is adopted to increase the contact voltage drop, thereby reducing the current efficiency of the electrolysis device; the fluid resistance is large; the wiring terminal is low in position and easy to overheat and damage; it is inconvenient to replace the electrodes.

Disclosure of Invention

The utility model aims to overcome the defects in the prior art and provide an electrolysis device for reducing COD in sewage.

The technical scheme of the utility model as follows:

an electrolysis device for reducing COD in sewage comprises a shell, wherein a sewage outlet pipe and a sewage inlet pipe are respectively arranged at two ends of the shell, the shell is a hollow box body, an opening is formed in one side of the shell, a sealing cover is arranged at the opening of the shell, and the sealing cover is connected with the shell in a sealing mode; an anode binding post is arranged on the shell body at a position close to one side of the sewage outlet pipe, a cathode binding post is arranged on a sealing cover opposite to the anode binding post, the outer sides of the anode binding post and the cathode binding post can be connected with an external lead for electrifying, the inner side of the anode binding post is connected with an anode sheet, and the inner side of the cathode binding post is connected with a cathode sheet; a complex pole piece is arranged between the anode piece and the cathode piece in parallel; the inner wall of the shell is provided with a positioning rod, the anode sheet, the cathode sheet and the multiple-pole sheet are connected with the positioning rod, and the anode sheet, the cathode sheet and the multiple-pole sheet divide the space in the shell into a plurality of channels from the sewage inlet pipe to the sewage outlet pipe; the anode sheet, the composite pole sheet and the cathode sheet adopt titanium plates as matrixes, and active coatings are coated on the surfaces of the titanium plates.

The locating lever passes positive pole piece, multiple pole piece, negative pole piece in proper order, is equipped with the position sleeve on the locating lever between every positive pole piece, multiple pole piece, negative pole piece to realize the electrode slice location, do not need welded fastening, easy dismounting.

And a sealing gasket is arranged between the shell and the sealing cover.

And a screw nut is arranged between the shell and the sealing cover for fastening and sealing.

The utility model has the advantages and beneficial effects that:

the device can generate active oxides to effectively reduce COD in sewage under the condition of direct current, has reasonable structure, convenient assembly and disassembly and higher efficiency, and has good economic and environmental benefits; the series structure of the anode sheet, the composite pole sheet and the cathode sheet can ensure that the voltage of the electrolysis device is higher, and the manufacturing cost of a matched direct-current power supply, namely a rectifier transformer, can be greatly reduced; meanwhile, the invalid contact voltage drop caused by complex series connection outside the cell can be avoided, so that the current efficiency of the electrolysis device is improved; the electrode arrangement structure of the electrolytic device has consistent liquid flow direction, which is beneficial to reducing the fluid resistance; the wiring terminal is arranged on the upper part, so that overheating damage caused by dirt deposition on the lower part can be reduced, and the service life of the equipment is effectively prolonged; the electrode plate is more convenient to mount, dismount and replace due to the adoption of the structure that the positioning rod and the positioning sleeve are used for positioning the electrode plate.

Drawings

FIG. 1 is a cross-sectional view of an electrolysis apparatus for reducing COD in sewage according to the present invention.

1. The device comprises a sewage outlet pipe, 2, an anode wiring terminal, 3, a shell, 4, an anode sheet, 5, a positioning rod, 6, a sewage inlet pipe, 7, a sealing gasket, 8, a bolt and a nut, 9, a cathode wiring terminal, 10, a sealing cover, 11, a cathode sheet, 12, a positioning sleeve, 13 and a composite pole piece.

Detailed Description

The present invention will be described in further detail with reference to specific examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the two components can be directly connected or indirectly connected through an intermediate medium, and the two components can be communicated with each other. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

As shown in figure 1, the electrolysis device for reducing COD in sewage comprises a shell 3, wherein a sewage outlet pipe 1 and a sewage inlet pipe 6 are respectively arranged at two ends of the shell, the shell 3 is a hollow box body with an opening at one side, a sealing cover 10 is arranged at the opening of the shell, and the sealing cover is connected with the shell in a sealing way; an anode binding post 2 is arranged on the shell body at a position close to one side of the sewage outlet pipe, a cathode binding post 9 is arranged on a sealing cover 10 opposite to the anode binding post 2, the outer sides of the anode binding post and the cathode binding post 9 can be connected with an external lead for electrifying, the inner side of the anode binding post 2 is connected with an anode sheet 4, and the inner side of the cathode binding post 9 is connected with a cathode sheet 11; two complex pole pieces 13 are arranged between the anode piece 4 and the cathode piece 11 in parallel; a positioning rod 5 is arranged on the inner wall of the shell 3, the anode sheet 4, the cathode sheet 11 and the complex pole sheet 13 are all connected with the positioning rod 5, and the anode sheet 4, the cathode sheet 11 and the complex pole sheet 13 divide the space in the shell 3 into a plurality of channels from the sewage inlet pipe 6 to the sewage outlet pipe 1; the anode strip 4, the composite pole strip 13 and the cathode strip 11 adopt titanium plates as matrixes, and active coatings are coated on the surfaces of the titanium plates.

The positioning rod 5 sequentially and vertically penetrates through the anode sheet 4, the repolarization sheet 13 and the cathode sheet 11, and a positioning sleeve 12 is arranged on the positioning rod among each anode sheet 4, each repolarization sheet 13 and each cathode sheet 11, so that electrode sheet positioning is realized, welding fixation is not needed, and disassembly and assembly are convenient.

A sealing gasket 7 is arranged between the shell 3 and the cover 10.

And a screw nut 8 is arranged between the shell 3 and the sealing cover 10 for fastening and sealing.

The above detailed description is provided for the examples of the present invention, but the above description is only for the preferred embodiments of the present invention, and should not be considered as limiting the scope of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.

Claims

1. An electrolysis device for reducing COD in sewage is characterized by comprising a shell, wherein a sewage outlet pipe and a sewage inlet pipe are respectively arranged at two ends of the shell, the shell is a hollow box body with an opening at one side, a sealing cover is arranged at the opening of the shell, and the sealing cover is connected with the shell in a sealing manner; an anode binding post is arranged on the shell body at a position close to one side of the sewage outlet pipe, a cathode binding post is arranged on a sealing cover opposite to the anode binding post, the outer sides of the anode binding post and the cathode binding post can be connected with an external lead for electrifying, the inner side of the anode binding post is connected with an anode sheet, and the inner side of the cathode binding post is connected with a cathode sheet; a complex pole piece is arranged between the anode piece and the cathode piece in parallel; the anode sheet, the composite pole sheet and the cathode sheet adopt titanium plates as matrixes, and active coatings are coated on the surfaces of the titanium plates; the shell is characterized in that a positioning rod is arranged on the inner wall of the shell, the anode sheet, the cathode sheet and the multiple-pole sheet are all connected with the positioning rod, and the space in the shell is divided into a plurality of channels from the sewage inlet pipe to the sewage outlet pipe by the anode sheet, the cathode sheet and the multiple-pole sheet.

2. The electrolysis device for reducing COD in sewage according to claim 1, wherein the positioning rod passes through the anode sheet, the complex pole sheet and the cathode sheet in sequence, and a positioning sleeve is arranged on the positioning rod among each anode sheet, the complex pole sheet and the cathode sheet.

3. The electrolytic device for reducing COD in wastewater according to claim 1, wherein a gasket is provided between said housing and said cover.

4. The electrolyzing device for reducing COD in sewage according to claim 1, wherein a screw and nut fastening seal is provided between the housing and the cover.