KR20140005459A - Drum apparatus - Google Patents

Abstract

The drum apparatus according to the present invention, which is formed of a conductive material and includes a rotatable drum body and a corrosion preventing body installed on an outer circumferential surface of the drum body to prevent electrical corrosion, the corrosion preventing body is formed of graphite material. According to this structure, while improving the workability due to the simple structure, it is easy to maintain while preventing electrical corrosion.

Description

Drum Device {DRUM APPARATUS}

The present invention relates to a drum apparatus, and relates to a drum apparatus that can block electrical corrosion with a simple structure.

Generally, in a sewage treatment facility or a wastewater treatment facility, a sludge, which is a sediment during the treatment of sewage or wastewater, is generated. This sludge is treated through a dehydration process that separates it from moisture. Here, as the type of dewatering process of the sludge, a filter cloth dehydration method for pressurizing and filtering the sludge with a filter such as a filter cloth, or an electropenetration dewatering method for dewatering by a voltage difference by applying an electrode has been proposed.

Here, the electro-osmotic dehydration method is a drum to which the positive electrode (+) and the negative electrode (-) are applied, the caterpillar rotated along the outer circumferential surface of the drum, and wound for transporting and dewatering the sludge between the drum and the caterpillar. It consists of a filter cloth that rotates indefinitely. With this configuration, an electric field is formed between the drum and the caterpillar, whereby water contained in the sludge is separated from the sludge by electrophoresis and capillary action to be dehydrated.

The drum applied to the electropenetrating dehydration method is generally provided with a titanium plate coated with a platinum-based metal iradium on the outer circumferential surface of the main body of the conductive material, the copper plate is surrounded. At this time, the body, the copper plate and the titanium plate is fastened with a plurality of bolts mutually.

By the way, the copper plate and the titanium plate as a component for preventing the corrosion, the work process is difficult and takes a lot of work time causes an increase in manufacturing cost. In addition, the copper plate and the titanium plate has a low conductivity material properties, causing an increase in power consumption during electroinfiltration and dehydration. In addition, if the dehydration operation is prolonged for a long time, the coating of the platinum-based metal (iradium) is peeled off due to the application of anode (+), thereby causing electrical corrosion by sludge, which not only damages the drum, but also causes a decrease in electrical conductivity. . In addition, since a plurality of bolts for fastening the copper plate and the titanium plate to the main body are separated during operation, problems such as drum breakage and short circuit are caused.

The present invention has been made in view of the above problems, and an object thereof is to provide a drum device that is easy to maintain while preventing electrical corrosion with a simple structure.

The drum device according to the present invention for achieving the above object is formed of a conductive material and includes a rotatable drum body, and a corrosion preventing body installed on the outer circumferential surface of the drum body to prevent electrical corrosion, the corrosion preventing body It is formed of graphite material.

According to one side, the corrosion preventing body is attached to the drum body is installed.

According to one side, the corrosion preventing body has a thickness of 20 ~ 200mm.

According to one side, the drum body is formed of stainless steel (SUS) material and has a hollow shape.

The drum apparatus according to a preferred embodiment of the present invention includes a drum main body which can be electrically applied, and a corrosion preventing body which is formed and attached to an outer circumferential surface of the drum main body to prevent electrical corrosion.

According to one side, the corrosion preventing body has a thickness of 20 ~ 200mm, the drum body is formed of stainless steel (SUS) material and has a hollow shape.

The drum device according to the present invention having the configuration as described above, first, as the corrosion prevention body of graphite material is installed in the drum body, it is possible to prevent electrical corrosion during the dehydration operation even with a simple structure.

Second, as the conventional copper plate and titanium plate is replaced by a single corrosion preventer, the workability can be improved as the structure is simplified, thereby reducing the manufacturing cost.

Third, due to the characteristics of the graphite material, the corrosion preventing body can be attached to the drum body, and the maintainability is excellent.

1 is a cross-sectional view schematically showing a drum device according to an embodiment of the present invention, and
Fig. 2 is a cross-sectional view schematically showing a section taken along a line II-II in Fig. 1. Fig.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

Referring to FIG. 1, a drum device 1 according to an embodiment of the present invention includes a drum body 10 and a corrosion preventing body 20.

For reference, the drum device 1 described in the present invention is exemplified as being applied to an electropenetrating dewatering device (not shown) for separating water from sludge which is a precipitate generated during treatment of sewage or wastewater. The electropenetrating dehydration apparatus (not shown) is understood from the known technology, and thus detailed description thereof will be omitted.

The drum body 10 has a hollow shape in which the inside is emptied. The drum body 10 is formed of a conductive material that is light in weight, excellent in corrosion resistance, and electrically conductive, and has a positive electrode (+) or a negative electrode (−) applied thereto. In this embodiment, the drum body 10 is exemplified as being formed of a stainless steel (SUS) material. This drum body 10 is rotatable.

The corrosion preventing body 20 is installed on the outer circumferential surface of the drum body 10 to prevent electrical corrosion. To this end, the corrosion preventing body 20 is formed of a graphite material among the excellent corrosion resistance material, has a thickness of approximately 20 ~ 200mm, it is variable according to the size of the drum body (10). In this case, the corrosion preventing body 20 of the graphite material has excellent properties of workability and corrosion resistance by material properties, the corrosion preventing body 20 is installed in the drum body 10 even in a single configuration of the sludge Prevents corrosion during dehydration.

The corrosion preventing body 20 is attached to the outer peripheral surface of the drum body 10, as shown in FIG. Due to the graphite material properties of the corrosion preventing body 20, it is excellent in adhesion to the drum body 10 without a separate fastening means as conventional. Accordingly, the work process in which the corrosion preventing body 20 is installed on the drum body 10 can be simplified, and the existing problem that the drum device 1 is broken by separating the fastening means can be improved. In addition, since the corrosion preventing body 20 does not cause damage to the fastening portion even after long-term use, it also improves the economics.

In addition, the corrosion preventing body 20 may be reused by simple polishing when surface damage such as scratching occurs even if sludge or foreign matter is introduced due to the characteristics of graphite material. For reference, even if an electric short is generated during the electroprecipitation dehydration process, even if irregularities are generated in the corrosion preventing body 20, it is easy to reuse through simple washing due to the characteristics of the graphite material. In addition, even if the sludge is attached to the corrosion preventing body 20, the sludge can be removed by a smooth material properties without a separate water cooling means for separating the sludge.

A method of manufacturing the drum device 1 according to the present invention having the configuration as described above will be described with reference to FIGS. 1 and 2.

As shown in FIG. 1, when the drum body 10 is formed of a conductive material such as stainless steel and has a hollow shape, a corrosion preventing body 20 is installed on an outer circumferential surface of the drum body 10 to prevent electrical corrosion. do. At this time, the corrosion preventing body 20 is formed of a graphite material, and is attached to the outer peripheral surface of the drum body 10 as shown in FIG.

Although the present invention has been described with reference to the preferred embodiments thereof, it will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention as defined in the following claims. It can be understood that

1: drum device 10: drum body
20: corrosion inhibitor

Claims (6)

A drum body formed of a conductive material and rotatable; And
Corrosion preventing body is installed on the outer peripheral surface of the drum body to prevent electrical corrosion;
Including;
The corrosion preventing body is a drum device formed of graphite material.
The method of claim 1,
The corrosion preventing body is attached to the drum body drum apparatus.
The method of claim 1,
The corrosion preventing body has a drum device having a thickness of 20 ~ 200mm.
4. The method according to any one of claims 1 to 3,
The drum body is formed of stainless steel (Stainless steel, SUS) material and a drum device having a hollow shape.
Drum body capable of applying electricity; And
Corrosion preventing body formed by being attached to the outer peripheral surface of the drum body to prevent electrical corrosion;
Drum apparatus comprising a.
The method of claim 5,
The corrosion inhibitor has a thickness of 20 ~ 200mm,
The drum body is formed of stainless steel (Stainless steel, SUS) material and a drum device having a hollow shape.

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