WO2012108592A1 - Electrophoresis-type electro-osmosis dehydrator for easily feeding and processing sludge - Google Patents

Abstract

The present invention relates to an electrophoresis-type electro-osmosis dehydrator for easily feeding and processing sludge. In the electrophoresis-type electro-osmosis dehydrator, a drum for preliminary dehydration is further provided, a stopper is disposed in a first drum to maintain a predetermined distance between the first drum and a caterpillar which are disposed on the portion through which sludge is fed, and a bevel gear is disposed on the end of a shaft to maintain the distance. According to the present invention, the sludge may be smoothly fed to improve throughput, and further overflow of the sludge may be prevented. Thus, the sludge may be neatly processed without causing the contamination of the apparatus, and fine sludge may be easily dehydrated.

Description

Electrophoretic electro-osmotic dehydrator for smooth injection and disposal of sludge

The present invention relates to an electrophoretic electro-osmotic dehydrator, and more particularly to an electrophoretic electro-osmotic dehydrator capable of smooth injection and treatment of sludge.

In general, an electroosmotic dehydrator is a device in which a DC power is applied to form an electric field for electrophoretically removing water combined with sludge, and dewatering the sludge by the voltage difference.

These electrophoretic electropenetrating dehydrators are 'electric penetrating dehydrator (application number: 10-2004-7759)', 'phase controlled electric dehydrator (application number: 10-2005-9928)', 'electric penetrating dehydrator (application number: 10- 2007-46494), 'Phase Controlled Electrophoretic Electrophoresis Dehydrator Using Three-Phase Alternating Power (Application No .: 10-2008-44901)', and the drum of the electrophoretic electrophoretic electrophoresis dehydrator improved by the applicant of the present invention. Device (application number: 10-2010-135183), washing device for electrophoretic electro-osmotic dehydrator (application number: 10-2010-135185), and digital control circuit of phase-controlled electrophoretic electro-osmotic dehydrator using three-phase alternating current And a system (application number: 10-2010-135188) and the like, the structure is largely provided with a drum, a drum and a predetermined space portion to which an anode (+) or a cathode (-) is applied, and a cathode in its entirety. Caterpillar or drum with (-) or positive (+) applied It is composed of a caterpillar between the wound filter fabric belts for transport and dewatering of the sludge.

In the conventional electrofiltration dehydrator, a constant pure DC voltage is applied between the drum and the caterpillar to form an electric field, and water around the liquid sludge particles charged in the electric field is charged by the sludge particles by electrophoresis and capillary action. Moisture is separated and removed by moving to the opposite electrode side.

That is, since the sludge particles have a negative surface charge, when an electric field is formed in the sludge, the sludge particles move to the (+) pole, and the moisture in the sludge particle layer moves to the (-) pole to promote dehydration.

Such a conventional electro-osmotic dehydrator has a problem that when the sludge is injected, the input portion is narrow so that the sludge is not injected well and overflows around the input portion. For this reason, there is a problem that the equipment is contaminated and the sludge throughput is remarkably insufficient.

One of the reasons why sludge is not added well is the high water content of the injected sludge. That is, the appropriate water content is 83% or less, the sludge injected is generally 85 ㅁ 1%. Another reason is that the sludge is too fine to enter the feed section.

Conventional electropenetrating dehydrator for solving the above-mentioned problems, in order to solve the first reason, the polymer is injected into the sludge. When polymer is added to the sludge, the moisture content is lowered to an appropriate level. However, there is a problem that the cost increases because the polymer is expensive.

Another conventional electroosmotic dehydrator for solving the above-mentioned problems is to solve the second reason, that is, install an O-ring on the drum outer surface to secure the sludge input space. However, the O-ring causes the filter cloth to be damaged due to a poor meandering operation, and the equipment is damaged in a few minutes, thereby causing the sludge to overflow. The state of the conventional electrofiltration dehydrator in which the equipment is damaged and the sludge overflows is shown in FIGS. 1 and 2. 1 and 2 are photographs showing a problem phenomenon of the conventional electric penetration dehydrator.

The present invention has been proposed to solve the above problems, and an object thereof is to provide an electrophoretic electropenetrating dehydrator capable of maintaining a constant space between a drum and a caterpillar and allowing sludge to be smoothly injected and processed.

Another object of the present invention is to provide an electrophoretic electropenetrating dehydrator capable of smoothly adding and treating sludge, which can be easily introduced by lowering the water content of the sludge.

Still another object of the present invention is to provide an electrophoretic electropenetrating dehydrator capable of smoothly injecting and treating sludge, which is free of sludge, which is not contaminated with equipment, and the throughput of sludge can be improved.

Electrophoretic electro-osmotic dehydrator capable of smoothly adding and treating sludge according to the present invention for achieving the above object is applied to one side of a cylindrical DC power source of a cylindrical shape rotating along an axis, and preliminarily dewatering the injected sludge. A first drum for performing; A caterpillar traveling at a predetermined distance from the first drum and receiving a DC power of opposite polarity; A stopper installed at the first drum to maintain a predetermined distance from the caterpillar; A second drum having one polarity DC power applied to the cylindrical inner circumferential surface rotating along an axis, the second drum being provided at regular intervals from the caterpillar and performing dehydration of sludge passing through the first drum; The first shaft is provided for the operation of the caterpillar, the first shaft provided on the first drum which is a sludge input portion, the second shaft provided between the first and second drum, the second sludge discharge portion is dewatering performed A plurality of shaft parts including a third shaft provided at the side of the two drums; And a first bevel gear installed at the end of the first shaft and the second shaft to maintain a predetermined distance between the first drum and the caterpillar, and a second bevel gear installed at the end of the second shaft and the third shaft. It includes a gear unit.

In the present invention, since the distance between the drum and the caterpillar is kept constant due to the stopper and the bevel gear portion, the sludge is smoothly introduced. As a result, the throughput of the sludge can be improved, and problems such as sludge overflow can be solved. Therefore, there is an effect that can be processed cleanly without contamination of the equipment during operation.

In addition, by performing the preliminary dehydration and the main dehydration through the two drums, the water content of the sludge is lowered to an appropriate level, for example 83%, there is an effect that the dewatering operation of the fine sludge is also easy.

The present invention will be described with reference to the embodiments shown in the accompanying drawings, which are exemplary and will be understood by those skilled in the art that various modifications and equivalent embodiments are possible. Therefore, the true scope of protection of the present invention should be defined only by the appended claims.

1 and 2 are photographs showing a problem phenomenon of the conventional electric penetration dehydrator.

3 is a view showing the front surface of the electrophoretic electro-osmotic dehydrator capable of smoothly adding and treating sludge according to the present invention.

4 is a view illustrating the stopper of FIG. 3.

5 is a view showing the rear surface of the electrophoretic electro-osmotic dehydrator capable of smoothly adding and treating sludge according to the present invention.

6 is a view showing the shaft portion and the bevel gear portion of FIG.

Hereinafter, the electrophoretic electro-permeation dehydrator capable of smoothly adding and treating sludge according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings. Figure 3 is a view showing the front of the electrophoretic electro-osmotic dehydrator capable of smoothly entering and treating the sludge according to the present invention, Figure 4 is a view showing the stopper of FIG. 5 is a view showing the rear surface of the electrophoretic electro-osmotic dehydrator capable of smoothly adding and treating sludge according to the present invention, and FIG. 6 is a view showing the shaft portion and the bevel gear portion of FIG. 5.

Referring to FIGS. 3 to 6, the electrophoretic electrophoretic dehydrator 100 capable of smoothly introducing and treating sludge according to the present invention may include a first drum 10, a stopper 15, a second drum 20, and a caterpillar. 30, the shaft portion 40, and the bevel gear portion 50.

The first drum 10 has a cylindrical shape that rotates along an axis, and a DC power source of one polarity is applied to an inner circumferential surface thereof. The first drum 10 performs preliminary dewatering of the introduced sludge. That is, by performing the preliminary dehydration through the first drum 10, and the main dehydration through the second drum 20 to be described later, the water content of the sludge can be lowered. For example, the water content of the sludge from 85% to 1% may be lowered to 83%. For this reason, the problem of using an expensive polymer in order to lower the water content of sludge can be solved.

The caterpillar 30 travels in a non-cyclic orbit at a predetermined interval from the first drum 10 and the second drum 20. The caterpillar 30 is applied with a DC power source of opposite polarity to the first and second drums 10 and 20. Sludge is introduced between the first drum 10 and the caterpillar 30, the electrophoretic electro-osmotic dehydrator 100 according to the present embodiment can be easily introduced by maintaining a constant gap therebetween. A stopper 15 and a bevel gear unit 50 are provided to maintain a predetermined interval between the first drum 10 and the caterpillar 30.

The stopper 15 is installed in the first drum 10. As shown in FIG. 4, the stopper 15 maintains a predetermined gap between the first drum 10 and the caterpillar 30. The sludge can be easily introduced at a constant interval through the stopper 15.

The second drum 20 has a cylindrical shape that rotates along an axis, and a DC power source of one polarity is applied to the inner circumferential surface. The second drum 20 is installed at regular intervals with the caterpillar 30. At this time, the distance between the second drum 20 and the caterpillar 30 is significantly smaller than the above-described distance between the first drum 10 and the caterpillar 30, the second drum 20 and the caterpillar 30 The interval between them is made as small as possible to perform the dewatering of sludge. The second drum 20 performs main dehydration on sludge in which preliminary dehydration is performed through the first drum 10. As a result, the water content of the sludge may be lowered.

The shaft portion 40 is provided for driving the caterpillar 30. The shaft portion 40 is composed of a total of five shafts. The first shaft 41 is provided on the first drum 10, which is the sludge injection portion, the second shaft 42 is provided between the first and second drums 10, 20, and the third shaft 43 ) Is provided on the side of the second drum 20 which is the sludge discharge portion where dehydration is performed. The fourth and fifth shafts are provided below the first and second drums 10 and 20, respectively. Due to the rotational movement of the shaft portion 40, the acyclic track running of the caterpillar 30 can be performed.

The bevel gear portion 50 is composed of a first bevel gear 51 and a second bevel gear 52, as shown in Figs. The first bevel gear 51 is provided at the ends of the first shaft 41 and the second shaft 42 to maintain a predetermined distance between the first drum 10 and the caterpillar 30. Through the rotation of the first bevel gear 51 and the stopper 15 described above, a predetermined distance between the first drum 10 and the caterpillar 30 may be maintained.

The second bevel gear 52 is provided at the ends of the second shaft 42 and the third shaft 43. The second bevel gear 52 maintains a constant distance between the second drum 20 and the caterpillar 30.

On the other hand, the electrophoretic electro-osmotic dehydrator capable of smoothly adding and treating sludge according to the present embodiment is not limited to the above-described form, and may be variously modified within a range not departing from the technical spirit of the present invention. This will be readily apparent to those skilled in the art.

Claims (1)

A first drum to which a DC power of one polarity is applied to a cylindrical inner circumferential surface that rotates along an axis, and performs preliminary dehydration of the introduced sludge; A caterpillar traveling at a predetermined distance from the first drum and receiving a DC power of opposite polarity; A stopper installed at the first drum to maintain a predetermined distance from the caterpillar; A second drum having one polarity DC power applied to the cylindrical inner circumferential surface rotating along an axis, the second drum being provided at regular intervals from the caterpillar and performing dehydration of sludge passing through the first drum; The first shaft is provided for the operation of the caterpillar, the first shaft provided on the first drum which is a sludge input portion, the second shaft provided between the first and second drum, the second sludge discharge portion is dewatering performed A plurality of shaft parts including a third shaft provided at the side of the two drums; And Bevel gears including a first bevel gear installed at the end of the first shaft and the second shaft to maintain a predetermined distance between the first drum and the caterpillar, and a second bevel gear installed at the end of the second shaft and the third shaft. Electrophoretic electro-permeation dehydrator capable of smoothly entering and treating sludge, characterized in that it comprises a.

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