KR101531201B1 - Filter for ballast water of ship - Google Patents

Abstract

The present invention relates to a filtering device for ballast water of a ship and, more specifically, to a filtering device for ballast water of a ship, comprising: a base plate; an outer screen which is formed in the shape of a hollow body mounted on the upper surface of the base plate and through which a fluid comes in and out of a side surface thereof; an inner screen which is mounted on the outer screen, is formed in the same shape as the shape of the outer screen, and has a diameter shorter than the diameter of the outer screen; a plurality of elastic balls loaded in a space between the outer screen and the inner screen and made of an elastic material; a compression ring mounted between the outer screen and the inner screen; and a compressing means for compressing or releasing the elastic balls by driving the compression ring to linearly reciprocate between the outer screen and the inner screen. Therefore, the filtering device for ballast water of a ship according to the present invention can process a greater number of microorganisms for a unit time than a traditional two-dimensional screen, has operating efficiency enhanced by lengthening the cycle of backwashing, can be manufactured in various shapes to facilitate the modification of structure thereof depending on an installation environment, and is compatible with a traditional ballast water processing device.

Description

Technical Field [0001] The present invention relates to a ballast water filter,

The present invention relates to a ship ballast puller apparatus that blocks foreign matter and organisms that are transported when a seawater flows in / out of a tank containing a ballast water located inside the vessel, and blocks inflow of impurities.

Ballast water refers to the water that is filled into the tank installed at the bottom or left and right sides of the ship to maintain the center of gravity of the ship when the ship is in operation and generally uses seawater.

In particular, vessels for cargo transporting crude oil are equipped with tanks for desalinating equilibrium water in order to maintain the safety of the hull at the time of navigation. When crude oil is not filled, equilibrium is maintained by filling the equilibrium water in the tank, When filled, ballast water is discharged to adjust the buoyancy of the hull.

The equilibrium water of these vessels usually uses the seawater of the harbor to be unloaded. Essentially, a filtration device or system is necessary for the microorganisms that reproduce in the harbor to be transferred to other countries.

In the prior art of such a filter device, Japanese Patent Publication No. 1115132 discloses a filtration membrane for filtrating raw water present around the outside and a treated water outlet for taking out the treated water collected after filtration by the filtration membrane, And a follicle which is arranged outside and fixed at a predetermined interval and is fixed.

Another prior art is disclosed in Korean Patent Registration No. 0928069, which comprises a first primary filter for removing organic particles in ballast water flowing from seawater through an inlet; (Z direction) in which the electrode plates are orthogonal to the flow direction of the fluid. The electrode plates are arranged in a direction coinciding with the flow direction of the fluid (X direction) And a cathode plate are alternately overlapped with each other and one end of the electrode plate has a curved shape in order to reduce the pressure loss of the fluid, An electrolytic apparatus provided with a fixed jig; And a second secondary filter that removes microbes in the ballast water that has passed through the electrolytic device and is killed, and the size of the filter hole is smaller than that of the first primary filter, A compressed air injector for discharging hydrogen gas generated in the negative electrode plate to the outside of the hull, removing impurities adhered to the electrode plate, and removing microorganisms through an air bubble rupture process; A sludge induction pipe for discharging microbes killed by the hydrogen gas generated in the anode plate; And a differential pressure switch (DPS) for measuring the pressure difference between the inlet and outlet of the ballast water.

However, the above-mentioned prior arts have a disadvantage in that it is difficult to use due to the complicated configuration of the apparatus, the restrictions are imposed on the installation place, and the structure is difficult to change.

Disclosure of the Invention The present invention has been conceived in order to solve the problems described above, and provides a filter device for treating a ballast water, which is simple in installation and easy to install, can effectively treat impurities due to a double- The purpose is to do.

The ballast water filter device of the present invention comprises a base plate; An outer screen having a hollow shape to be mounted on an upper surface of the base plate, An inner screen formed in the outer screen and having the same shape as the outer screen, the inner screen having a smaller diameter than the outer screen; A plurality of elastic balls which are stacked in a space between the outer screen and the inner screen and formed of an elastic material; A compression ring positioned between the outer screen and the inner screen; And compression means for compressing or releasing the elastic balls by driving the compression ring so as to linearly reciprocate between the outer screen and the inner screen.

Therefore, the filter device for treating ship ballast water according to the present invention can treat more microorganisms per hour than the conventional two-dimensional screen type, increases the back washing cycle and increases the operation efficiency, It is very easy to change the structure according to the installation environment and it is possible to be compatible with the conventional ballast water treatment apparatus.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic diagram of a filtration apparatus for treating ship equilibrium water according to the present invention;
2 is a partial photograph of the filter device for treating ship equilibrium water according to the present invention.
3 is a partial schematic diagram of the state of a part of the filter device for treating ship equilibrium water according to the present invention.
4 is a schematic view showing a mechanism of only the elastic ball of the filter device for treating ship equilateral water according to the present invention.
5 is a view showing yet another use state of the filter device for treating ship equilibrium water according to the present invention.
6 is a cutaway perspective view of a screen.
7 is a perspective view showing a state in which a wedge wire is sandwiched on the outside of a support bar in a process of manufacturing a screen.
8 is a perspective view showing a state in which a wire is wound around a support bar constituting a screen according to another embodiment;
9 is a front view of a screen according to another embodiment;
10 is a view showing a state in which a wire is wound and fused to a support bar according to another embodiment;
11 is a bottom view of a wire according to yet another embodiment;
12 is a cross-sectional view showing a state in which wires are spirally wound on the support bar according to still another embodiment at regular intervals.
13 is a plan view of a screen manufacturing apparatus according to still another embodiment.
Fig. 14 is a right side view of Fig. 13; Fig.
Fig. 15 is a front view of the remaining part except the wire feeding unit in Fig. 13; Fig.
16 is a view showing a state in which devices are mounted on one side of the main body according to yet another embodiment;
Fig. 17 is a view showing a state in which a wire is formed on a wire according to yet another embodiment, and a wire is supplied to the support bar. Fig.
18 is a view showing a state in which a support bar is fixed to a support bar fixing portion of a first rotating unit according to yet another embodiment;
19 is a front and side sectional view of a first electrode roller of a screen manufacturing apparatus according to still another embodiment.
20 is a view showing a configuration of an electrode roller cleaning unit according to still another embodiment;
21 is a view showing a configuration of another electrode roller cleaning unit according to still another embodiment;

The ballast water filter device of the present invention comprises a base plate (20); An outer screen 10a having a hollow shape to be mounted on the upper surface of the base plate 20 and having a fluid flowing inside and outside the side surface; An inner screen 10b having the same shape as that of the outer screen 10a and formed with a smaller diameter than the outer screen 10a, A plurality of elastic balls 30 formed of an elastic material, which are stacked in a space between the outer screen 10a and the inner screen 10b; A compression ring 40 positioned between the outer screen 10a and the inner screen 10b; And compression means 50 for compressing or releasing the elastic balls 30 by driving the compression ring 40 to reciprocate linearly between the outer screen 10a and the inner screen 10b.

A plurality of spaces having the same concentric circles are arranged in a space between the outer screen 10a and the inner screen 10b to load the resilient balls 30 of dissimilar sizes into the divided spaces.

The outer screen 10a and the inner screen 10b are composed of a plurality of support bars 11 arranged in a cylindrical shape and a plurality of wires 11 that are welded and protruded while being spaced apart from each other or on the inner side of the support bar 11 12, and the wire 12 is triangular in cross section.

The wire 12 is welded to the support bar 11 such that only the tip of the triangle is welded to the support bar 11 or only the side portions of the wire 12 are contacted and welded to the support bar 11, It is possible to select the filtration direction.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

Fig. 1 is a schematic view of a filter device for treating ship equilibrium water according to the present invention, and Fig. 2 is a photograph of a part of a filter device for treating ship equilibrium water according to the present invention.

1 and 2, an external screen 10a is mounted on the upper surface of the base plate 20 in the ballast water filter apparatus of the present invention.

The external screen 10a is in the form of a hollow body, and the fluid can flow to the inside and outside of the side surface.

An inner screen 10b having the same shape as the outer screen 10a and having a diameter smaller than that of the outer screen 10a is placed in the outer screen 10a.

At this time, it is preferable that the inner screen 10b is arranged concentrically with the outer screen 10b.

Accordingly, a space is formed between the outer screen 10a and the inner screen 10b, and a plurality of elastic balls 30 formed of an elastic material are loaded in the space.

The elastic ball 30 is made of a synthetic resin material so as to have its own elasticity and has its own elasticity.

Such a synthetic resin is preferably made of polypropylene having excellent tensile strength, impact strength, surface strength and good chemical resistance.

In addition, polypropylene is an excellent material among general-purpose synthetic resins having low density and heat resistance.

A compression ring 40 is placed between the outer screen 10a and the inner screen 10b on which the elastic balls 30 are loaded and the compression ring 40 is interposed between the outer screen 10a and the inner screen 10b (50) for compressing or releasing the elastic balls (30) by driving them so as to reciprocate linearly.

The compression means 50 includes a compression ring 40 having a cylinder rod mounted on its upper surface and linearly reciprocating by a cylinder or providing a space on the upper portion of the compression ring 40 so as to fill or withdraw fluid or air, ) Is to be selected from among the constitutions for the linear reciprocating motion.

It is preferable that the base plate 20 is formed in a circular shape and the outer screen 10a is formed to have the same diameter as the base plate 20.

The outer screen 10a and the inner screen 10b have a plurality of support bars 11 arranged in a cylindrical shape and a plurality of support bars 11 which are welded and protruded while being spaced apart from the support bar 11 (12).

Particularly, the wire 12 is triangular in cross section. In the wire 12, only the tip portion of the triangle is welded to the support bar 11, or only the side portion of the wire 12 is supported It is possible to select the filtering direction of the screen 10 by making contact with and fusing with the bar 11. [

The external screen 10a and the internal screen 10b are collectively referred to as a screen 10, and the manufacturing method will be described in detail below.

Fig. 3 is a schematic view showing a state of a part of the filter device for treating ship equilibrium water according to the present invention, and Fig. 4 is a schematic view showing a mechanism of only the elastic ball of the present invention.

3 and 4 (a) show the filtering mode and (b) show the backwash mode.

3, the filtering mode applies force to the compression ring 40 by means of the compression means 50 and the compression ring 40 compresses the elastic ring 40 which is placed between the outer screen 10a and the inner screen 10b 30 are compressed and the gap between the elastic balls 30 is narrowed so that the microorganisms or foreign substances are collected while passing through a space between the elastic balls 30 which are densely packed.

That is, when the elastic balls 30 are compressed and inflow of microorganisms of various sizes, the space between the elastic balls 30 is very dense and the microorganisms can not easily pass through the space.

In the backwash mode, when the force applied to the compression ring 40 disappears, the space between the elastic balls 30, which are formed again densely, is instantaneously extended, so that the microorganisms or foreign substances are washed and discharged to the outside.

That is, when the pressure is removed and the space between the elastic balls 30 is secured, the elastic ball 30 flows in a very loose structure, and the collected microorganisms along the secured space are easily separated and discharged to the outside.

At this time, the screen 10 should be installed such that the stem of the wire 12 faces the inner center.

When the back waxing mode is completed again, the space is narrowed again and the filtering mode is set.

Fig. 5 is another use state view of the ship equilibrium water treatment filter device of the present invention. Fig.

As shown in FIG. 5, the elastic balls 30 are formed by dividing the elastic balls 30 of different sizes into a space having a concentric circle with respect to the inner center, and stacking the elastic balls 30 in multiple layers.

The elastic balls 30 are applied in various sizes depending on the types of microalgae and bacteria to be filtered, and the space formed between the elastic balls 30 is preferably about 10 to 50 mu m.

FIG. 6 is a perspective view showing the screen, and FIG. 7 is a perspective view showing a state in which a wedge wire is fitted to the outside of the support bar.

6 to 7, the screen 10 includes a ring-shaped wire 12 having a triangular cross section, and a support 12 that is welded to the wire 12 inside the wire 12 to support the wire 12 And a bar (11).

A plurality of support bars 11 are arranged in a cylindrical shape and a plurality of wires 12 as a ring are inserted outside the support bar 11 at regular intervals. And the welding with the bar 11 is performed.

The wire 11 is also called a wedge wire.

In another embodiment, the screen 10 includes a plurality of support bars 11 arranged in a cylindrical shape, and a plurality of wires 11 that are welded and protruded while being spirally wound while maintaining a gap on the outer side or the inner side of the support bar 11 12).

An apparatus and a method for manufacturing the screen 10 and the screen 10 according to another embodiment are as follows.

Fig. 8 is a perspective view showing a state in which a wire is wound around a support bar constituting a screen in another embodiment, and Fig. 9 is a front view of a screen according to another embodiment.

As shown in Fig. 8, the screen 10 includes a support bar 11, and a wire 12.

A plurality of support bars 11 are arranged in a cylindrical shape. The shape of the cylinder formed by the arrangement of the support bars 11 can be variously modified.

In other words, the support bar 11 may have the same cross-section as the one end to the other end, or the cross-section may be expanded or contracted.

The wire 12 is formed to have a long length and wound on the outer side of the support bar 11 a plurality of times in a helical shape with a predetermined gap.

One wire 12 may be wound all over the support bar 11 or two or more wires 12 may be continuously supplied and wound.

Scratches 12a having the same depth and size are formed at regular intervals on the wire 12 and spacing protrusions 12b protrude from both sides of the wire 12 on both sides of the scratch 12a.

The size of the spacing protrusions 12b is the same.

When the wire 12 is spirally wound on the support bar 11, the gap is automatically controlled.

However, in the process of fusing the wire 12 and the support bar 11 by welding, the fused portion may be thermally expanded to narrow the interval between the spirals.

In this case, the thermally expanded spiral portion is deformed until it comes into contact with the spacing projection 12b formed on the neighboring spiral portion, but after the spacer projection 12b is contacted, the spacing projection 12b prevents deformation , The gap between the spiral portions can be secured by the size of the spacing projection 12b.

Therefore, the drum screen of the present invention can maintain the filtering function.

Particularly, in order to select the direction of the filtering function of the drum screen 10, the drum screen 10 is formed such that only the tip portion of the triangular wire 12 is fused to the support bar 11, So that only the side portions are fused to the support bar 11.

10 is a view showing a state in which a wire is wound and fused to a support bar according to another embodiment.

The support bar 11 has a rectangular cross section and a weld portion 11a in the form of a wedge is formed on an outer surface of the support bar 11 that is in contact with the wire 12 before being welded to the wire 12.

In the welding process, the welded portion 11a is melted and the support bar 11 and the wire 12 are fused.

FIG. 11 is a bottom view of a wire according to another embodiment, and FIG. 12 is a cross-sectional view showing a state in which wires are spirally wound on a support bar according to another embodiment at regular intervals.

The cross section of the wire 12 has a wedge shape in a triangular shape and extends outward when the support bar 11 is wound around the outside at regular intervals.

Due to such a winding structure, the drum screen according to the present invention has a form of filtering out foreign substances while introducing water from the outside to the inside.

On the contrary, in the case of the drum screen having the form in which the wire 12 is widened toward the inside, foreign matters are drained while discharging the water from the inside to the outside.

Scratches 12a having the same size are formed at regular intervals on the wire 12 and spacing protrusions 12b are formed on both sides of the scratch 12a to protrude laterally of the wire 12.

The interval protrusion 12b is formed by squeezing the portion to be pressed in the process of pressing the soft wire 12 to form the scratch 12a.

Fig. 13 is a plan view of a screen manufacturing apparatus according to still another embodiment, Fig. 14 is a right side view of Fig. 13, Fig. 15 is a front view of the remainder except the wire supply unit in Fig. Fig. 5 is a view showing a state where devices are mounted on one side of the main body.

The drum screen manufacturing apparatus 1 according to the present invention includes a frame body 100, a main body 110, a first rotation unit 120, a screen loading unit 130, a sliding unit 140, A wire guide unit 180, a fusing unit 190, a lift unit 200, and a control unit 210. The control unit 210 controls the wire feeding unit 160, the wire feeding unit 160, the scratch unit 170,

The frame body 100 is fixed to a flat bottom, and a screen loading unit 130 is slidably installed laterally on the frame body 100, and the main body 110 is fixedly installed.

The main body 110 is installed on the upper part of the frame body 100 and includes a second rotating unit 150, a scratch unit 170, a wire guide unit 180, a fusing unit 190, (200).

The scratch unit 170, the wire guide unit 180, the fusing unit 190 and the elevation unit 200 are installed on one side of the side surface of the main body 110 facing the first rotation unit 120.

The first rotating unit 120 is installed on the upper part of the screen loading unit 130 and rotates while supporting one end of the plurality of support bars 11 in a cylindrical shape.

The first rotating unit 120 includes a driving motor 121 fixed to the upper portion of the screen loading unit 130 and a support bar fixing unit 130 mounted on the driving shaft end of the driving motor 121 to fix the support bar 11 122).

The screen loading unit 130 is slidably mounted on the upper surface of the frame body 100 and supports the first rotating unit 120 on the upper side thereof.

The screen loading unit 130 is slid toward one side of the main body 110 or away from one side.

The sliding unit 140 is installed on the frame body 100 to slide the screen loading unit 130 laterally.

The sliding unit 140 includes a pair of sliding rails 141 and a pair of sliding rails 141 spaced from each other in parallel to each other and extending toward one side of the main body 110 from the upper surface of the frame body 100 And a driving motor 143 coupled to one end of the screw 142 and rotating the screw 142.

The lower front and rear sides of the screen loading unit 130 are slidably engaged with the sliding rail 141 and the lower center side of the screen loading unit 130 is screwed to the screw 142. [

The second rotating unit 150 is installed in the main body 110 to rotate the support bar 11 while supporting the other end of the support bar 11. The second rotating unit 150 includes a driving motor 151 and a support bar supporting roller 152 that rotates in conjunction with the driving motor 151 via a belt and supports the other end of the support bar 11.

A plurality of support bar insertion grooves (not shown) are detachably mounted on one side of the support bar supporting roller 152, which is exposed at one side of the main body 110, .

When the first rotating unit 120 moves in a direction away from the main body 110 and the wire 12 is wound on the support bar 11, the other end of the support bar 11 is gradually moved from the support bar supporting roller 152 It is removed.

The driving motor 151 of the second rotating unit 150 is operated in conjunction with the driving motor 121 of the first rotating unit 120 so as to have the same driving speed and driving direction.

The wire supply unit 160 is positioned in front of the frame body 100 and winds the wire 12 in the form of a coil and continuously supplies the wire 12 to one side of the main body 110.

The scratch unit 170 is provided on the front side of the wire guide unit 180 on one side of the main body 110 and forms a scratch on the supplied wire 12 at regular intervals.

Thereby forming spacing protrusions on both sides of the scratch while forming a scratch in the width direction of the wire 12.

The wire guide unit 180 is installed on the rear side of the scratch unit 170 at one side of the main body 110 and supplies the scratch formed wire 12 orthogonally to the support bar 11, To prevent it from twisting or twisting.

The fusion unit 190 fuses the support bar 11 and the wire 12 together. In the present embodiment, resistance welding by the first and second electrode rollers 191 and 192 is applied.

The fusing unit 190 includes a first electrode roller 191 located inside the support bar 11 arranged in a cylindrical shape and contacting the inner surface of the support bar 11 and a second electrode roller 191 located outside the support bar 11 And a second electrode roller 192 contacting the outer surface of the wire 12.

In this embodiment, (-) current flows through the first electrode roller 191 and (+) current flows through the second electrode roller 192, but the current flow may be reversed.

The elevation unit 200 is installed on one side of the main body 110 to elevate and lower the second electrode roller 192. When the support bar 11 and the wire 12 are welded together, So that it can be stably contacted to the outer surface of the housing.

The elevating unit 200 includes a pair of elevating rails 201 spaced apart from each other in a vertical direction on one side of the main body 110, a screw 202 extending between the elevating rails 201, A driving motor 203 fixed to the upper portion of the main body 110 and coupled with the upper end of the screw 202, a lifting member 204 screwed to the screw 202, And a roller support 206 that is elastically supported using a second electrode roller 205 and is rotatably supported by the second electrode roller 192.

The control unit 210 controls the operation of the first and second rotation units 120 and 150, the operation of the sliding unit 140, the operation of the scratch unit 170, the operation of the fusing unit 190, The control of the operation of the motor. Adjustment of the interval between the spiral portions when the wire 12 is spirally wound on the outer side of the support bar 11 is performed by adjusting the driving speed of the driving motors 121 and 151 constituting the first and second rotation units 120 and 150 And the sliding speed of the screen loading unit 130 are automatically controlled by the control unit 210.

FIG. 17 is a view showing a state where a scratch is formed on a wire according to still another embodiment, and a wire is supplied to a support bar, and FIG. 18 is a view showing a state where a support bar is fixed to a support bar fixing part of the first rotation unit.

The wires 12 supplied from the wire feeding unit 160 are formed with scratches 12a at regular intervals while primarily passing through the scratch unit 170. [ The scratch unit 170 includes a scratch roller 171 disposed below the movement path of the wire 12 to form a scratch by pressing the lower portion of the wire 12 and a scratch roller 171 And a supporting roller 172 for supporting the wire 12 when the wire 12 is pressed by the scratch roller 171.

On the circumferential surface of the scratch roller 171, a plurality of pressing projections (not shown) for forming a scratch are formed at equal intervals.

The wire 12 having the scratch formed while passing through the scratch unit 170 is supplied to the support bar 11 while being guided through the wire guide unit 180.

The scratch unit 170 is constituted by a plurality of guide rollers 181 which are respectively installed on the downward movement path of the wire 12.

The scratch unit 170 supplies the wire 12 so as not to be struck, and prevents the wedge portion of the wire 12 from being twisted.

That is, when the wire 12 is wound on the support bar 11, the wedge portion is deflected outward so that the wedge portion is fed upward.

The first electrode roller 191 is mounted at the center of one side of the support bar supporting roller 152 constituting the second rotation unit 150. Support bar fitting grooves into which the plurality of support bars (11) are detachably fitted are formed around the first electrode roller (191).

The first rotating unit 120 is operated to rotate the support bar 11 in a state where the other end of the plurality of support bars 11 is inserted around the first electrode roller 191, And the wire loading unit 130 is slid in the direction away from the main body 110, the wire 12 is spirally wound on the outer surface of the support bar 11. [

The first electrode roller 191 contacts the inner surface of the support bar 11 while the wire 12 is wound on the outer side of the support bar 11 and the second electrode roller 192 contacts the outer surface of the wire 12 .

Therefore, the welded portion 11a formed on the outer side of the support bar 11 melts and firmly fuses the support bar 11 and the wire 12 together.

The second electrode roller 192 is kept in contact with the wire 12 by the spring 205 constituting the lift unit 200 so that the wire 12 is rotated together with the support bar 11 The wire 12 is rotated by friction with the wire 12.

The support bar fixing portion 122 constituting the first rotation unit 120 includes a circular support plate 122a mounted on an end portion of the drive shaft 121a of the drive motor and supporting and supporting one end of the support bar 11, And a pressure plate 122b which is mounted on the drive shaft 121a of the drive motor so as to be spaced apart from the support plate 122a and pushes the bent end of the support bar 11 passing through the support plate 122a toward the support plate 122a .

One end of the support bar 11 is bent while passing through the support plate 122a and the bent portion is pressed by the pressure plate 122b and the end portion is tightly fixed to the support plate 122a to be firmly fixed to the support bar fixing portion 122 .

19 is a front view and a side sectional view of the first electrode roller of the screen manufacturing apparatus according to still another embodiment, that is, Fig. 19 (a) is a sectional view seen from the front face of the cylindrical first electrode roller 191, Fig.

19, support bar mounting holes 191a formed in the longitudinal direction so as to allow the support bars 11 to be seated on the outer surface of the cylindrical first electrode roller 191 are spaced from each other at regular intervals in the circumferential direction And a support bar 11 is seated and fixed in the support bar seating hole 191a.

’형상으로서 서포트바 안착홀(191a)에 안착될 때, 상부로 돌출된 꼭지부분이 제1 전극롤러(191)의 외측 표면보다는 더 돌출되게 되며, 이로 인해 서포트바(11)의 돌출된 꼭지부분이 공급되는 와이어(12)에 접촉하게 되는 순간 제2 전극롤러(191)에 의해 압착되어 용융되면서 와이어(12)는 서포트바(11)의 외측면에 달라붙게 된다.
At this time, the support bar (11)

When the support bar 11 is mounted in the support bar seating hole 191a, the protruded vertex portion protrudes more than the outer surface of the first electrode roller 191, The wire 12 is adhered to the outer surface of the support bar 11 while being pressed and melted by the second electrode roller 191 as soon as it comes into contact with the supplied wire 12.

20 is a view showing a configuration of an electrode roller cleaning unit according to still another embodiment;

An electrode roller cleaning unit 220 for cleaning the second electrode roller 192 is installed on one side of the main body 110.

When the second electrode roller 192 is brought into contact with the wire 12 to perform resistance welding, the foreign matter adheres to the second electrode roller 192. If the foreign matter layer becomes thick, the resistance welding can not be performed smoothly.

Thus, the foreign substance layer adhered to the second electrode roller 192 is peeled off through the electrode roller cleaning unit 220.

The work of peeling off the foreign material layer adhering to the second electrode roller 192 is performed by rotating the second electrode roller 192 while the bite 227 to be described later is brought into contact with the circumferential surface of the second electrode roller 192 .

To this end, the electrode roller cleaning unit 220 includes a bracket 221, a driving motor 222, a driving motor support plate 223, a screw 224, an interlock gear 225 (226), and a byte fixing portion 228 .

The bracket 221 is fixed to the side of the roller support portion 206 constituting the lift unit 200 and ascended and descended together with the second electrode roller 192.

The driving motor 222 is slidably mounted on the bracket 221 in the horizontal direction through the screw 224 to generate a driving force for rotating the second electrode roller 192.

The drive motor 222 is mounted on the upper portion of the drive motor support plate 223 which is screwed to the screw 224 so as to be slidable in the horizontal direction.

The interlocking gears 225 and 226 transfer the driving force of the driving motor 222 to the second electrode roller 192 so that the second electrode roller 192 can rotate, And a second interlocking gear 226 mounted on the rotating shaft of the second electrode roller 192 and engaged with the first interlocking gear 225. The first interlocking gear 226 and the second interlocking gear 226,

As the drive motor 222 is laterally moved, the first and second interlocking gears 225 and 226 are engaged with or spaced from each other.

On the side surface of the bracket 221, a byte fixing portion 228 for fixing the byte 227 is installed.

The byte 227 is installed with an upward slope. The byte fixing portion 228 is provided with a fixing body 228a fixed to the side surface of the bracket 221 and a byte position shifting portion 228b penetrating the fixing body 228a and having the bit 227 held at the end thereof .

The byte position shifting unit 228b is provided movably on the fixed body 228a.

The position of the byte position shifting portion 228b can be adjusted to bring the byte 227 into contact with the second electrode roller 192 or with the second electrode roller 192. [

A process of cleaning the second electrode roller 192 through the electrode roller cleaning unit 220 will be described.

When the second electrode roller 192 is not cleaned, the driving of the driving motor 222 is stopped and the first and second interlocking gears 225 and 226 are kept apart from each other.

The bite 227 is also spaced from the second electrode roller 192.

The second interlocking gear 226 is moved to the first interlocking gear 224 by moving the driving motor 222 to the first interlocking gear 224 by rotating the screw 224, And the bite 227 is brought into contact with the circumferential surface of the second electrode roller 192 by operating the bite position shifting portion 228b.

Subsequently, when the driving motor 222 is driven, the second electrode roller 192 is rotated, and foreign matters sticking to the circumferential surface of the second electrode roller 192 are peeled off.

21 is a view showing a configuration of another electrode roller cleaning unit according to still another embodiment;

The frame body 100 and the main body 110 are provided with an electrode roller cleaning unit 230 for cleaning foreign matter peeled off when the second electrode roller 192 is cleaned.

The foreign matter can be completely removed by discharging the washing water to the second electrode roller 192 in the process of peeling off the foreign objects adhering to the second electrode roller 192 by the byte 226.

To this end, the electrode roller cleaning unit 230 includes a washing water tank 231 installed on the upper part of the frame body 100 and a second electrode roller 192 provided on one side of the main body 110, A water supply pump 233 for supplying the washing water of the washing water tank 231 to the spray nozzle 232 and a spray pump 233 provided below the second electrode roller 192 for spraying water from the spray nozzle 232, And a washing water receiver 234 for receiving the washing water to fall down.

The washing water collected in the washing water receiver 234 is transferred to the washing water tank 231 and reused.

A filter (not shown) is provided on the washing water transfer path for connecting the washing water receiver 234 and the washing water tank 231 or on the washing water transfer path for connecting the washing water tank 231 and the water feed pump 233 .

Therefore, the filter device for treating ship ballast water according to the present invention can treat more microorganisms per hour than the conventional two-dimensional screen type, increases the back washing cycle and increases the operation efficiency, It is very easy to change the structure according to the installation environment and it is possible to be compatible with the conventional ballast water treatment apparatus.

10: Screen 10a: External screen
10b: inner screen 20: base plate
30: elastic ball 40: compression ring
50: compression means
11: Support bar 1: Screen production device
12: wire 12a: scratch
12b: gap projection 100: frame body
110: main body 120: first rotating unit
121: Driving motor 122: Support bar fixing part
130: Screen loading unit 140: Sliding unit
141: sliding rail 142: screw
143: drive motor 150: second rotation unit
151: drive motor 152: support bar support roller
160: wire feed unit 170: scratch unit
171: Scratch roller 172: Support roller
180: wire guide unit 181: guide roller
190: Fusing unit 191: First electrode roller
192: second electrode roller 200: elevating unit
201: lift rail 202: screw
203: drive motor 204:
205: spring 206: roller support
210: control unit 220: electrode roller cleaning unit
221: Bracket 222: Drive motor
223: drive motor support plate 224: screw
225: first interlock gear 226: second interlock gear
227: Byte 228:
230: electrode roller cleaning unit 231: washing water tank
232: injection nozzle 233: feed pump
234: Washing basin

Claims (4)

In a marine ballast water filter device,
A base plate (20); An outer screen 10a having a hollow shape to be mounted on the upper surface of the base plate 20 and having a fluid flowing inside and outside the side surface;
An inner screen 10b having the same shape as that of the outer screen 10a and having a diameter smaller than that of the outer screen 10a, the inner screen being positioned inside the outer screen 10a;
A plurality of elastic balls 30 formed of an elastic material, which are stacked in a space between the outer screen 10a and the inner screen 10b;
A compression ring 40 positioned between the outer screen 10a and the inner screen 10b;
And compression means 50 for compressing or releasing the elastic balls 30 by driving the compression ring 40 to reciprocate linearly between the outer screen 10a and the inner screen 10b,
In the space between the outer screen 10a and the inner screen 10b, a space having the same concentric circle is divided into a plurality of spaces, and elastic balls 30 of different sizes made of different sizes are stacked,
The outer screen 10a and the inner screen 10b have a plurality of support bars 11 arranged in a cylindrical shape and a plurality of wires 12 which are welded and protruded while being spaced apart from each other at the outer or inner side of the support bar 11 , Wherein the wire (12) is triangular in cross section,
The wire 12 may be formed so that only the tips of the triangle are fused in contact with the support bar 11 or only the side portions of the wire 12 are contacted and fused to the support bar 11, You can choose direction,
The support bar 11 has a wedge-shaped welded portion 11a formed on a rectangular cross section at an outer surface thereof in contact with the wire 12,

The support bar 11 and the wire 12 are fusion-bonded to each other by melting the welding portion 11a in the welding process,
When the stem 10 of the wire 12 is installed so as to face the inner center of the wire 10 and the elastic ball 30 is compressed through the compression means 50 to inflow the microorganism, Since the space between the microorganisms is very dense, the microorganisms can not easily pass through and are collected on the surface or inside,
If the pressing force of the compression means 50 is removed after the gap between the elastic balls 30 is densely formed, the space between the elastic balls 30 densely formed is instantaneously extended to wash the microorganisms or foreign matter, 10). ≪ / RTI >
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