KR20170101490A - filtering system for seawater - Google Patents

Abstract

In order to improve the purification efficiency and post-treatment efficiency of the seawater, the seawater supplied through the supply pipe selectively opened by the seawater intake control valve is rotationally moved in the tangential direction to form a vortex so that the suspension is agitated and agglomerated A vortex filtration unit having a conical inner circumferential surface portion whose diameter is reduced toward the bottom so that the formed sludge is deposited on the lower end side; A microfiltration unit connected to an upper side of the vortex filtration unit to supply the seawater from which the sludge has been removed, the microfiltration unit having a filtration filter for filtering algae and fine suspended particles remaining in the seawater; And a sludge extrusion unit disposed at a lower end of the vortex filtration unit and selectively communicating with the vortex filtration unit by an on-off valve, wherein the sludge extrusion unit rotatably compresses the sludge and discharges the solidified bar.

Description

Filtering system for seawater

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a filtration system for seawater, and more particularly to a filtration system for seawater whose seawater purification efficiency and post-treatment efficiency are improved.

Generally, seawater applications in coastal areas, such as fisheries markets, fisheries, sushi restaurants, common areas and seafood processing plants, require clean seawater. At this time, the seawater is in a state where suspended matter such as seaweed discharge, various algae, and plankton remain, so seawater taken from the shore is supplied to the user through a separate filtration system. Especially, in case of red tides frequently occurring in coastal areas, seawater filtration system is required because it causes massive death of fish and shellfish by overgrowth of phytoplankton by eutrophication.

In the conventional art, there has been known a watercontainer which is connected to a certain depth below the sea level not far from the shore or the coast, but has filtration means therein, and an automatic flow control valve which is located at the distal end of each collecting water tube and controls the flow rate of the filtered seawater And a water pipe and a water pump for collecting the filtered seawater from each collection water pipe and transferring the same to the seawater usage place.

At this time, the suspended solids remaining in the seawater through the filtration system are agglomerated to generate sludge. Here, the sludge may be separated and discharged from the filtration system so that the sludge may be recycled or discarded after being compressed to minimize moisture.

However, conventionally, the sludge is separated and discharged from the filtration system without substantially removing moisture. Accordingly, it is troublesome to carry out a separate process of removing water and pressing it.

Korean Patent No. 10-1277199

In order to solve the above problems, the present invention provides a seawater filtration system with improved purification efficiency and maintainability of seawater.

In order to solve the above problems, according to the present invention, seawater supplied through a supply pipeline selectively opened by a seawater inlet control valve is rotated in a tangential direction to form a vortex so that the sludge formed by agitation and flocculation of suspended matters, A vortex filtration unit having a conical inner circumferential surface portion whose diameter is narrowed toward the bottom so as to be precipitated toward the bottom; A microfiltration unit connected to an upper side of the vortex filtration unit to supply the seawater from which the sludge has been removed, the microfiltration unit having a filtration filter for filtering algae and fine suspended particles remaining in the seawater; And a sludge extrusion unit disposed at a lower end of the vortex filtration unit and selectively communicating with the vortex filtration unit by an on-off valve, wherein the sludge extrusion unit rotatably compresses the sludge and discharges the solidified bar.

The sludge extruding portion includes a rotating shaft portion extending in the transverse direction inside the case connected to the lower end portion of the vortex filtration portion and rotated in the axial direction by a rotational force applied from a power portion provided at one end portion, A spiral screw portion for pressing the sludge while moving the sludge in the other direction, and a discharge portion provided at the other end of the case, wherein the sludge squeezed is solidified and discharged.

At this time, it is preferable that the interval between the screw is gradually narrowed toward the other end side of the rotary shaft portion.

The discharge tube is provided with a hollow tube extending in a predetermined cross-sectional shape so that the solidified sludge is formed into a bar shape. The bar shaped sludge is cut into a predetermined length at an end of the hollow tube, And a cut-off portion for cutting the cut surface.

The open / close valve is preferably controlled to be opened by the seawater inlet control valve in a state where the supply pipe is closed.

Through the above solution, the seawater filtration system according to the present invention provides the following effects.

First, the sludge extrusion part is integrally connected to the lower end of the whirlpool filtration part in which the suspended matter is agitated and agglomerated by the swirling of seawater, so that the filtration process of the seawater and the post-treatment process of extruding, solidifying and discharging the sludge are practically one The convenience of the operation can be remarkably improved.

Secondly, since the interval between the spiral screw portions for extruding the sludge is gradually narrowed toward the other end portion of the rotary shaft portion, the pressing force for compressing the sludge gradually increases to stably remove the moisture remaining in the sludge, The density is firmly compressed and can be prevented from being broken.

third, Since the hollow molding tube having the cutting portion at the end portion is connected to the discharge portion, the sludge compressed in the spiral screw portion is automatically passed through the hollow molding tube and is automatically drawn into a rigid bar shape, It is easy to dispose and incinerate because it is cut and discharged.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a schematic diagram of a seawater filtration system in accordance with a preferred embodiment of the present invention.
Fig. 2 is an enlarged view showing part B of Fig. 1; Fig.
3 is an enlarged view showing part A of Fig.
FIG. 4 is a schematic view of a filtration filter applied to a seawater filtration system according to a preferred embodiment of the present invention. FIG.
Figs. 5A and 5B are schematic views of a portion A of Fig. 1 from a side view. Fig.

Hereinafter, a seawater filtration system according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a schematic view showing a seawater filtration system according to a preferred embodiment of the present invention, and FIG. 2 is an enlarged view showing part B of FIG.

As shown in FIGS. 1 and 2, the seawater filtration system 100 according to the present invention removes algae and suspended matter contained in seawater supplied through the seawater inflow pipe portion 1 connected to the sea water, Such as fish, shellfish, fish farms, and seafood processing factories. In detail, the seawater filtration system 100 is configured such that the seawater supplied through the seawater inflow pipe portion 1 is filtered while being unidirectionally moved toward the seawater discharge pipe portion 8 side, It is supplied to the seawater service station. At this time, the seawater filtration system 100 preferably includes a vortex filtration unit 10 and a microfiltration unit.

In detail, the seawater inflow pipe portion 1 may be provided with a pump 2, and the pump 2 may be operated so that the seawater is supplied to the seawater discharge pipe portion 8 side in one direction. At this time, the seawater inflow pipe portion 1 may be provided with a first filtering net la that can preliminarily filter floating matters having a relatively large size.

When the pump 2 is in operation, the air can be moved to the seawater by the aeration function. Accordingly, since the dissolved oxygen amount in the seawater is maintained at a predetermined ratio, the growth environment of the fish and shellfish can be improved while the filtered seawater is finally supplied to the farm or the water tank. Furthermore, a separate air supply nozzle may be attached to the pump 2 to maintain an amount of dissolved oxygen in the seawater at an appropriate amount.

On the other hand, the seawater supplied through the seawater inflow pipe portion 1 is introduced into the vortex filtration portion 10 through the supply pipe 3. The supply pipe 3 is preferably provided with a seawater intake control valve 3a for controlling the flow rate of the seawater supplied through the seawater inflow pipe portion 1 or closing / opening the supply pipe 3 .

Here, the supply pipe 3 is communicated with the upper end side surface of the vortex filtration part 10, and the vortex filtration part 10 has a conical inner circumferential surface part 11 whose diameter is narrowed toward the lower end part. desirable. That is, the seawater supplied through the supply pipe 3, which is selectively opened by the seawater intake control valve 3a, is rotationally moved in the tangential direction of the inner circumferential surface portion 11 to form a vortex, So that sludge s is formed. Of course, the vortex filtration part 10 may further include a rotation part along the circumferential direction of the inner circumferential surface part 11 as the case may be. As a result, the suspension and cohesion of the float due to the centrifugal force are improved, so that floating matters contained in the seawater can be effectively removed.

The sludge s is discharged to the lower end side of the inner circumferential surface portion 11 by its own weight and the seawater from which the sludge s is removed passes through the upper draw pipe portion 4 ) To the microfiltration unit.

The lower end of the vortex filtration unit 10 may be connected to a sludge extrusion unit 70 for extruding and solidifying the sludge s. Accordingly, the sludge (s) formed in the vortex filtration unit (10) can be continuously extruded and solidified in a form easy to be processed in a state in which the filtration system (100) is in operation, .

In addition, a suspended matter having a relatively large size in the seawater may be supplied to the microfiltration portion in a state in which the suspended particles are preferentially removed from the first filtering net 1a and the vortex filtration portion 10. Accordingly, the size of the suspended matters to be filtered in the microfiltration unit is reduced and the amount thereof is reduced, so that the pressure applied to the filtration filter 20 provided in the microfiltration unit can be minimized. As a result, the filtration performance of the filtration filter 20 is maintained for a long time, so that the replacement cycle is extended and the filtration efficiency can be remarkably improved.

The sludge extruding part 70 is selectively connected to the lower end of the vortex filtration part 10 by an on-off valve 13. The sludge extrusion part 70 is rotated and compressed to form a solid bar type SB .

In detail, the sludge extruding portion 70 may include a rotary shaft portion 73, a helical screw portion 74, and a discharge portion 75. The rotary shaft portion 73 preferably has one side extended in the transverse direction inside the case 71 connected to the lower end portion of the vortex filtration portion 10 by the open / close valve 13 to selectively communicate therewith Do. At this time, a power portion 72 is provided at one end of the rotary shaft portion 73 and can be rotated in the axial direction by a rotational force applied from the power portion 72. [

The spiral screw portion 74 is provided along the outer peripheral surface of the rotary shaft portion 73 and presses the sludge s while moving the sludge s toward the other side of the case 71. At this time, it is preferable that the interval between the screw is gradually narrowed toward the other end side of the rotary shaft portion 73. That is, the interval k1 between the helical threaded portions 74 provided on the other end side of the rotary shaft portion 73 is smaller than the spacing k2 between the helical screw portions 74 provided on the one end side of the rotary shaft portion 73, Can be narrowly formed.

Accordingly, the pressing force for compressing the sludge (s) toward the discharge portion (75) gradually increases to stably remove the moisture remaining in the sludge (s), while the density of the compressed sludge (s) It can be firmly compressed.

The discharge unit 75 is disposed at the other end of the case 71 so that the sludge s is solidified and discharged therefrom. The solid sludge s is formed into a bar shape (SB) And a cut portion for cutting the bar shaped sludge SB to a predetermined length may be further provided at an end of the hollow formed pipe 76. [

As a result, the sludge (s) solidified by being moved along the helical screw part (74) and removed by moisture is passed through the hollow molding tube (76) provided in the discharge part (75) Can be ejected in the form of a solid bar removed. Moreover, since the cut portion formed at the end of the hollow molding tube 76 is automatically cut to a predetermined length and discharged, it is easy to carry and incinerate.

Furthermore, a heating unit for drying the solidified sludge may be further provided on the outside of the hollow molding tube 76. Thus, since the water remaining substantially in the bar shaped sludge is removed, the bar shaped sludge SB is more firmly solidified and the flammability is improved even when incinerated, so that the generation of smoke can be minimized.

On the other hand, on the outer surface of the case, there is formed a tread for releasing water to be dewatered upon squeezing of the sludge, the tread is covered by a sieve net, and the moisture released through the sieve is discharged to one side A drainage unit may be provided.

Accordingly, the water dewatered in the sludge (s) extruded and moved along the spiral screw part (74) by the rotation of the rotary shaft part (73) can be easily discharged through the tread. Then, the discharged water can be drained through the drainage part and treated.

On the other hand, the opening / closing valve 13 is preferably controlled to be opened by the seawater intake control valve 3a in a state where the supply pipe 3 is closed. That is, since the process of replacing the filtration filter 20 is progressed and the sludge s is discharged from the sludge extruding part 70 from the vortex filtration part 10 and solidified, Can be remarkably improved.

FIG. 3 is an enlarged view showing part A of FIG. 1, FIG. 4 is a schematic view showing a filtration filter applied to a seawater filtration system according to a preferred embodiment of the present invention, and FIGS. 5A and 5B are cross- Which is a schematic view of the part viewed from the side.

As shown in FIGS. 1 to 5B, the upper inlet pipe section 4 is disposed on the upper part of the vortex filtration section 10 and is connected to the lower end of the vortex filtration section 10, And a second sieve 4c capable of filtering the remaining sludge and remaining suspended matter.

The seawater supplied through the upper intake pipe portion 4 passes through the microfiltration portion and algae and fine suspended particles that have not been removed from the vortex filtration portion 10 and the respective sieve webs 1a and 4c are filtered and removed . At this time, it is preferable that the microfiltration portion is understood as a portion where the filtration filter 20 is fastened and the algae and fine suspended particles are substantially filtered. In addition, the fact that the seawater has passed through the microfilter is substantially understood that the seawater is filtered through the filtration filter 20.

Subsequently, the seawater from which the algae and fine suspended matter are removed is moved to the seawater discharge pipe section 8 side via the discharge pipe 6. At this time, as the seawater is continuously filtered, suspended matters adhere to the filtration filter 20. If the suspended matter is excessively adhered, the filtration performance of the filtration filter 20 may be reduced. There is a selectively separable tubular structure between the upper draw pipe 4 and the discharge pipe 6 so that the floating filter 20 can be removed and replaced with a new filter 20 .

In detail, it is preferable that a lifting and bending portion 5 is provided to connect between the upper draw pipe portion 4 and the discharge pipe 6 spaced apart at a predetermined interval. One end of the lifting and lowering bending part 5 may be connected to the upper draw pipe part 4 and the other end may be connected to the discharge pipe 6. At this time, the ascending / descending bending portion 5 may have a curved shape in which the one end and the other end are opened in the same direction.

In detail, the upper draw pipe portion 4 is preferably provided as a hollow pipe having an upper portion opened in an upward direction, and disposed on the upper portion of the vortex filtration portion 10. One end of the discharge pipe 6 may be opened in a direction corresponding to the opening direction of the upper end of the upper draw pipe portion 4.

At this time, it is preferable that the filtration filter 20 is pressed between the upper end of the upper draw pipe part 4 and the one end of the up / down bending part 5. Of course, the filtration filter 20 may be pressure-tightened between the other end of the lifting and bending portion 5 and the discharge pipe 6 as the case may be.

In detail, it is preferable that a seating flange 4a is provided on the outer circumferential surface of the upper end of the upper draw pipe portion 4 in a radial direction. It is preferable that a pressing flange 5a corresponding to the seating flange 4a is provided at one end of the ascending / It is preferable that the filtration filter 20 is selectively press-fitted between the seating flange 4a and the pressurizing flange 5a as the lifting and lowering bending portion 5 is lifted and lowered.

At this time, it is preferable that sealing means 60 is interposed between the inner surfaces of the flanges 4a, 5a opposite to the front portion 21a and the rear portion 21b to prevent seawater from leaking. In detail, the sealing means 60 is preferably made of rubber, silicone, or the like, which is elastically pressed to seal the gap.

Here, the filter 20 may include a hollow frame 21, a buffering mesh 23, and a filtering mesh 24. The hollow frame part 21 is provided to surround the hollow part 22. The front part 21a is seated on the seating flange 4a and the rear part 21b is mounted on the elevating and bending part 5, So that it can be selectively pressed and fastened by the pressurizing flange 5a.

At this time, a sealing groove portion 26 may be formed in the front portion 21a and the rear portion 21b of the hollow frame portion 21 so that a part of the sealing means 60 is inserted to improve the sealing force. As a result, leakage of seawater is prevented, contamination around the filtration system 100 can be prevented, and the machine can be corroded or the occurrence of a failure can be prevented by leakage of seawater.

It is preferable that the buffering mesh 23 is arranged to cover the side of the front portion 21a of the hollow portion 22 of the hollow frame portion 21. The buffer mesh 23 is preferably provided to buffer the pressure supplied through the upper draw pipe 4 directly to the filtration mesh 24 and perform a primary filtration function.

Preferably, the filtration mesh 24 is disposed to cover the rear portion 21b side of the hollow portion 22 of the hollow frame portion 21. Preferably, the filtration mesh 24 is provided to perform filtration of algae and fine suspended particles remaining in the seawater having passed through the buffer mesh 23.

At this time, it is preferable that the filtration mesh 24 is formed with a cavity 24a having a smaller diameter than the gap 23a of the buffering mesh 23. It is further preferable that the pore diameter of the filtration mesh 24 is 15 to 35 탆 which is smaller than algae that float in seawater and generate green tide or red tide, but is larger than inorganic components such as salt and minerals, . The pore diameter of the buffering mesh 23 may be 0.8 to 1.2 mm.

That is, as the seawater passes through the gap 23a of the buffering mesh 23, the pressure can be somewhat reduced by the resistance. Accordingly, it is possible to prevent the pressure of the seawater from being directly applied to the filtration mesh 24 formed by the fine pores 24a of 15 to 35 mu m, thereby preventing the filtration mesh 24 from being damaged. Since the seawater filtered by the predetermined amount of floating material in the buffering mesh 23 passes through the filtering mesh 24 through the space 25 spaced at predetermined intervals between the meshes 23 and 24, The amount of algae and fine particulate matter to be filtered in the filtration mesh 24 can be minimized.

As a result, microbials that cause eutrophication and pollution by generating green tide or red tide while floating in seawater are substantially removed, while salinity and minerals are supplied to the seawater application site through the filtration mesh, so that the growth environment of fish and shellfish is remarkably improved .

Here, the space 25 may be formed between the filtration mesh 24 and the buffer mesh 23. The interval g of the space 25 may be set to a predetermined interval in consideration of the scale of the seawater filtration system 100 to which the filtration filter 20 is applied and the replacement period of the filtration filter 20 g).

Further, it is preferable that the filtration mesh 24 and the buffering mesh 23 are formed of stainless steel. Thus, corrosion by seawater can be prevented. In addition, since the used filter 20 can be separated from the filtration system 100, washed, cleaned and reused, economical efficiency can be remarkably improved. Furthermore, since the filter 20 can be reused, waste generated in the seawater filtration system 100 is minimized, thereby being eco-friendly.

The hollow frame portion 21 is formed of stainless steel in the same manner as the filtration mesh 24 and the buffering mesh 23 and the hollow portion 22 is provided with the filtration mesh 24 and the buffering mesh 23 The outer rims 23b and 24b may be welded and integrally fixed. Accordingly, it is possible to prevent the buffering mesh 23 or the filtration mesh 24 from being arbitrarily separated from the hollow frame portion 21 by the water pressure of the seawater.

The seawater having passed through the filtration filter 20 is discharged to the seawater discharge pipe section 8 through a filtration line leading to the ascending / descending bending section 5 and the discharge pipe 6. Here, the ultraviolet ray irradiating unit 7 may be further provided at the end of the seawater discharge pipe 8. In detail, the ultraviolet ray irradiating unit 7 may be a plurality of ultraviolet ray lamps spaced along the circumferential direction of the outer circumferential surface of one side of the seawater discharge tube 8. Since the seawater can pass through the ultraviolet ray irradiating unit 7 at a constant speed to kill the remaining live fungus, the cleanliness of the seawater can be remarkably improved.

In addition, the seawater discharge pipe portion 8 may be provided with a seawater discharge control valve 8a. In other words, the inflow and outflow of the seawater moved between the seawater intake control valve 3a and the seawater discharge control valve 8a provided in the supply pipe 3 can be selectively controlled.

At this time, the supply pipe 3, the vortex filtration section 10, the upper intake pipe section 4, the filtration filter 20, the ascending and descending bending section 5, the discharge pipe 6 and the sludge extrusion section 70 The plurality of filtration units F may be arranged in series. This can further maximize the filtration efficiency of algae, suspended matter and fungi contained in seawater.

On the other hand, as the seawater filtration system 100 is continuously operated, the float is adhered to the filtration filter 20. If the suspended matters are stuck to the filtration filter 20 over a certain level, the filtration efficiency is lowered. Thus, the present invention provides a configuration for automatically calculating and replacing the replacement timing of the filter 20. [

The seawater filtration system 100 according to the present invention includes an ascending and descending means 30 for selectively ascending and descending the ascending and descending bending portion 5, And a filter filter replacement device 40 for removing and replacing the filter filter 40.

Specifically, the lifting means 30 selectively lifts up the lifting / lowering bending portion 5 so that the filtration filter 20 pressed between the seating flange 4a and the pressurizing flange 5a is exposed. When the ascending / descending bending portion 5 is lifted and separated and the filter 20 is exposed, the filter replacement device 40 is continuously driven to separate the used filter 20 and remove the unused filter 20) is performed.

At this time, the elevating means 30 preferably includes a lifting base portion 31 and a lifting plate portion 35. The elevating base portion 31 is connected to the driving portion 32 provided at the central portion of the lifting base portion 31 so as to support one end portion of the elevating bar 33 between the upper drawing pipe portion 4 and the discharge pipe 6.

The lift plate portion 35 is connected to each end of the lifting and lowering bending portion 5 and has a central portion coupled to the other end portion of the lifting and lowering bar 33, The elevating and bending bending portion 5 can be raised and lowered in the vertical direction.

It is preferable that at least one elevation guide protrusion 34 extending in the vertical direction corresponding to the elevation bar 33 is formed on the elevation base portion 31. The elevating plate portion 35 may be formed with a vertical alignment groove portion 37 into which the elevation guide protrusion 34 is inserted.

It is preferable that a filter sensor unit is provided at a position opposite to the upper intake pipe 4 and the ascending / descending bending portion 5 with respect to the filtration filter 20. Here, the filter sensor unit is provided in pairs around the filter 20, and a signal transmitted from one side passes through the filter mesh 24 and the buffer mesh 23 to calculate a signal transmission amount transmitted to the other side .

Here, the calculated signal transmission amount is transmitted to the control unit for controlling the seawater filtration system 100, and it is determined whether the signal transmission amount calculated by the control unit is equal to or greater than a predetermined filtering effective limit range. In this case, the filtration effective limit range is understood to be a limit range that allows the amount of seawater that can be supplied to the seawater usage destination to pass even if the float is adhered to the filtration filter 20.

In detail, as the filtration process of the filtration system 100 is continuously performed, the amount of the signal transmission calculated by the filter sensor portion gradually decreases due to adhesion of the fine particulate matter to the filtration filter 20.

The operation of the pump 2 is stopped and the inflow of seawater is stopped due to the closing of the supply pipe 3 by the seawater intake control valve 3a when the calculated signal transmission amount is less than the pre- do. When the seawater is discharged through the vortex filtration unit 10 and the microfiltration unit, the lifting unit 30 is driven to lift up the lifting bending unit 5 and the filtration filter can be replaced. Further, the above-described sludge extrusion and draining operations can be performed while the filtration filter is replaced.

In detail, when the ascending / descending bending portion 5 is lifted and separated, the filtration filter 20U pressed between the seating flange 4a and the pressing flange 5a is exposed. At this time, the filtration filter 20 can be automatically removed as the filtration filter replacement device 40 is driven, and can be replaced with an unused filtration filter 20N.

When the filtration filter 20 is completely replaced, the ascending / descending bending portion 5 is lowered and fastened by the lifting means 30 to move the pump 2 and the seawater intake control valve 3a The supply line 3 can be reopened by the operation of the filtration system 100 and the filtration system 100 can be restarted.

The filter filter replacement device 40 may include a storage unit 42, a pushing unit 43, a rejection unit 46, and a stopper 48. The accommodating portion 42 includes a hollow case extending upward from a bottom surface portion 41 extending from a side portion of the seating flange 4a so that a filter filter 20N unused in the inner space 42a is stacked. . That is, the inner surface of the bottom surface portion 41 and the seating flange 4a may be formed to have substantially the same height, and the depth of the fastening groove portion 5b formed on the inner surface of the pressurizing flange 5a, May correspond to the thickness of the filter 20. At this time, it is preferable that a filter discharge port 42b is opened on the other side of the lower end of the accommodating portion 42 corresponding to the seating flange 4a.

It is preferable that the pushing portion 43 is provided on the side opposite to the elevating and bending tube portion 5 with the receiving portion 42 as a center. The pushing portion 43 is inserted into the body portion 44 and the other end portion 45a passes through the pusher hole 42c formed at one side of the lower end of the accommodating portion 42, And a pushing extension 45 for pushing the pushing member 45 toward the other direction. The pushing portion 43 may be a hydraulic or pneumatic cylinder in which the pushing extension portion 45 is inserted or withdrawn in the longitudinal direction of the main body portion 44.

In addition, it is preferable that the receiving part (46) is provided on the other side of the receiving part (42) with the elevating bending part (5) as a center. In detail, the rejection port 46 is formed at a position corresponding to the bottom surface portion 41 with an opened upper surface portion, and the filtration filter 20U (not shown), which is pressurized by the pushing extension portion 45 and removed from the seating flange 4a, ) Is dropped and accommodated. At this time, a buffer part 47 is provided on the lower surface of the receiving part 46 for buffering the shock due to its own weight at the time of dropping the filtering filter 20U by the elastic restoring force of the buffer spring 47a to prevent breakage .

The initial position P1 of the other end 45a of the pushing extension 45 may be set as an inner space 42a of the accommodating portion 42. [ When the other end 45a of the pushing extension 45 is positioned in the inner space 42a of the receiving part 42, the unused filtering filter 20N Can be supported in a stacked state. As a result, the pushing extension 45, which is pulled out from the initial position P1 to the other side in a state where the lifting and lowering bending portion 5 is lifted and separated, 20U can be pressurized and removed only by the rejection unit 46. [

Further, it is preferable that the pushing extension 45 is provided in a bar shape having a circular section. Accordingly, even if the pushing extension 45 is inserted and drawn across the lower end of the receiving part 42, the friction with the filtering filter 20N stored in the receiving part 42 can be minimized.

The pushing extension 45 pushes the filtration filter 20U that is seated on the inner surface of the seating flange 4a to the other side so that the other end 45a is retracted to the predetermined second position P2 Preferably set. At this time, it is preferable that the predetermined second position P2 is set between the end of the main body part 44 and one side of the lower end of the storage part 42 in which the pusher hole 42c is opened.

In detail, the pushing extension 45 presses and removes the used filtration filter 20U, and when the pushing extension 45 is retracted to the second position P2, the unused filtration filter 20, which has been stacked on the receiving part 42, Is seated at the bottom of the storage portion (42). The pushing extension 45 which has been retreated to the second position P2 presses the filtration filter 20 seated on the bottom of the receiving part 42 to the other side to form the inner surface of the seating flange 4 4a.

At this time, it is preferable that a filter discharge port 42b corresponding to the diameter of the filtration filter 20 is formed on the other side of the lower end of the storage part 42. That is, a pusher hole 42c corresponding to the cross-sectional diameter of the pushing extension 45 may be formed on one side of the lower end of the accommodating portion 42, and the filter discharge port 42b may be formed on the other side.

The stopper 48 may be provided at one side of the inner surface 4a of the seating flange 4 to selectively restrict the position of the filtering filter 20N discharged from the receiving part 42 desirable. At this time, the stopper 48 may be controlled so as to protrude when the other end 45a of the pushing extension 45 is disposed at the second position P2.

The other end portion 45a of the pushing extension 45 disposed at the second position P2 presses the unused filter filter 20N inside the accommodating portion 42 in the other direction, The position that rests on the inner surface 4a of the flange 4 can be accurately aligned. This allows the unused filter filter 20 to be seated at the correct position between the mounting flange 4a and the pressurizing flange 5a so that even if the replacement operation of the filtration filter 20 is performed automatically, Can be significantly improved.

When the filtration filter 20N unused on the inner surface 4b of the seating flange 4a is aligned and seated, the other end 45a of the pushing extension 45 is inserted into the inner space of the accommodating portion 42, (P1). That is, as the position of the other end 45a of the pushing extension 45 is controlled only without any special operation, the removal of the used filter 20U and the replacement of the unused filter 20N can be progressively performed . As a result, if the unused filter filter 20N is replenished to the receiving portion 42, the user can repeatedly perform the filter filter replacement operation.

When the other end portion 45a of the pushing extension portion 45 is moved to the initial position P1, the elevating means 30 is driven to descend the elevating bending portion 5, The filtration filter 20 can be pressed between the pressurizing flange 5a and the pressurizing flange 5a.

Here, a pressing protrusion for selectively pressing the upper surface of the stopper 48 may be provided on one side of the inner surface of the pressurizing flange 5a. Accordingly, the stopper 48 may be inserted into the initial position by the pressing protrusion when the ascending / descending bending portion 5 is lowered.

In some cases, the filtration filter 20 may be press-fitted between the separated and mutually opposed front end and rear end of the piping to which the seawater is supplied in the seawater filtration system 100. In this case, the front end and the rear end of the pipe refer to the opposite ends of the pipe from the seawater inflow pipe portion 1 connected to the sea water to the seawater discharge pipe portion 8 connected to the sea water supply and supply source, Understanding is desirable.

That is, in the present invention, the front end portion of the pipe corresponds to the upper end portion of the upper draw pipe portion 4, and the rear end portion of the pipe corresponds to the one end portion of the up and down curved portion 5, And the rear end may be provided as one end of the discharge pipe 6. That is, the filtration filter 20 can be removed and replaced as the upper draw pipe portion 4 and the one end portion of the discharge pipe 6 are selectively separated from each other. At least one of the upper draw pipe portion 4 and the discharge pipe portion 6 is formed of a bellows pipe or a pipe made of a flexible material so that the upper draw pipe portion 4 and the discharge pipe portion 6 are spaced apart from each other. The length may optionally be reduced.

In the seawater filtration system 100 according to the present invention, the sludge extruding part 70 is integrally formed at the lower end of the whirlpool filtration part 10 in which the suspended matters are agitated and agglomerated by the swirling of seawater to form the sludge s Lt; / RTI > Accordingly, since the post-treatment process of extruding, solidifying and discharging the sludge (s) and the filtration process of the seawater is practically performed in one system, the operational convenience can be remarkably improved.

At this time, the spacing of the spiral screw portions 74 for extruding the sludge (s) is gradually narrowed toward the other end of the rotary shaft portion 73. As a result, the pressing force for compressing the sludge (s) gradually increases, and the density of the compressed sludge (s) is firmly compressed while stably removing water remaining in the sludge (s) .

Furthermore, The hollow molding tube 76 having the cut part at the end is connected to the discharge part 75 so that the sludge s compressed in the spiral screw part 74 passes through the hollow molding tube 76, It is easy to dispose and incinerate because it is automatically cut and discharged into a predetermined length in the form of a solid bar with water removed.

As described above, the present invention is not limited to the above-described embodiments, and variations and modifications may be made by those skilled in the art without departing from the scope of the present invention. And these modifications fall within the scope of the present invention.

1: Seawater inflow tube part 3: Supply piping
4: upper draw-in tube part 5:
6: discharge piping 8: seawater discharge pipe
10: Vortex filtration part 20: Filtration filter
30: elevating means 40: filtration filter replacing device
60: sealing means 70: sludge extrusion part
73: Rotary shaft part 74: Spiral screw part
75: discharge part 100: filtration system of seawater

Claims (5)

The seawater supplied through the supply pipe selectively opened by the seawater inlet control valve is rotated in the tangential direction to form a vortex so that the suspended matter is agitated and agglomerated to form a cone A vortex filtration unit having an inner peripheral surface of a shape;
A microfiltration unit connected to an upper side of the vortex filtration unit to supply the seawater from which the sludge has been removed, the microfiltration unit including a filtration filter for filtering algae and fine suspended particles remaining in the seawater; And
And a sludge extruder disposed at a lower end of the vortex filtration section and selectively communicating with the vortex filtration section by an on-off valve, wherein the sludge extrusion section rotates the sludge and discharges the sludge in the form of a solid bar. The method according to claim 1,
The sludge extruder
A rotary shaft portion extending in the transverse direction inside the case connected to the lower end portion of the vortex filtration portion and rotated in the axial direction by a rotational force applied from a power portion provided at one end portion,
A spiral screw portion provided along the outer circumferential surface of the rotary shaft portion and pressing the sludge while moving the sludge in the other direction;
And a discharge unit provided at the other end of the case, wherein the sludge is solidified and discharged. 3. The method of claim 2,
Wherein the spiral screw portion is formed such that the distance between the screw gradually decreases toward the other end side of the rotary shaft portion. 3. The method of claim 2,
Wherein the discharge section is provided with a hollow molding tube extending in a predetermined cross-sectional shape so that the solidified sludge is formed into a bar shape,
And a cut portion for cutting the bar shaped sludge to a predetermined length is provided at an end of the hollow molding tube. The method according to claim 1,
Wherein the open / close valve is controlled by the seawater intake control valve such that the supply pipe is opened in a closed state.

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