KR101557954B1 - Waste removal system of underwater - Google Patents

Abstract

The present invention relates to an underwater foreign substance removal system and, more specifically, provides an underwater foreign substance removal system which performs removal work of an underwater foreign substance and simultaneously, sucks and collects the removed foreign substance. According to the present invention, the underwater foreign substance removal system comprises: a foreign substance suction member having a foreign substance suction body and a pressure air jet unit; a pressure air supply line wherein one end is connected to a pressure air supply source and the other end is accessed to the pressure air jet unit of the foreign substance suction member; a foreign substance discharge line accessed to a foreign substance discharge port of the foreign substance suction member to discharge a foreign substance to the outside; and a vacuum suction device accessed for negative pressure to be applied to the inside of the foreign substance discharge line.

Description

{WASTE REMOVAL SYSTEM OF UNDERWATER}

More particularly, the present invention relates to a device for removing foreign matter in water, and more particularly, to a device for removing foreign substances from a water by using a vacuum suction device and compressed air, The present invention relates to an apparatus for removing foreign matter in a variety of underwater facilities as well as an operation for removing foreign matter such as seafood attached to a screen of a deep power generation facility intake port.

Generally, nuclear power plants and thermal power plants are located on the seashore where water can be easily taken, and water such as cooling water is taken in through a water intake facility connected to the sea.

FIG. 1 is a schematic view of a water intake system of a power plant installed on the shore. As shown in FIG. 1, seawater flows into the open chamber 10 through a pipeline, and seawater introduced into the open chamber 10 flows into the retaining wall 20 The cooling water is sucked by the cooling water suction pump 50 and supplied to the cooling portion of the power generation facility.

The screen 30 is generally referred to as a fixed screen or the like and has a structure in which a plurality of flat bars are arranged at regular intervals in a vertical direction on a screen frame manufactured to fit the size of an opening formed in the retaining wall.

The screen 30 is inclined so as to have a slight inclination angle so that the jellyfish inhabiting the seawater contained in the seawater is prevented from flowing into the internal water intake part 40 during the flow of the seawater into the water intake part 40 It does the function to prevent it.

As described above, when the screen is installed in the water intake facility of the power plant, the foreign matter contained in the seawater or the jellyfish is filtered out. Therefore, the problem such as the stoppage of the cooling water suction pump 50 due to the foreign substances included in the water or the jellyfish can be solved to some extent can do.

However, since the screen is always immersed in seawater, shells and sea microorganisms having a shell such as a barnacle on the screen bar (flat iron) are adhered and inhabited, thereby blocking the seawater flow holes between the screen bars and obstructing the inflow of seawater So that the water level of the water intake portion can not be properly maintained. In addition, there is a problem that the cooling water suction pump for sucking a large amount of seawater causes an overload and causes a failure.

In addition, due to the above-described problem, the supply of cooling water is disrupted, and the entire operation of the power generation facility is stopped, resulting in a serious situation in which power can not be produced.

Accordingly, recently, the diver is directly submerged into the open chamber 10 having a depth of about 20 meters to manually remove the shellfish and the like. However, since the operation is performed by manual operation, an excessively long operation time is required, The maintenance cost of power generation facilities is increased, and there is a high risk of safety accidents due to drowning of the divers. In particular, when the water is manually removed by the diver, it is necessary to stop the operation of the cooling water suction pump 50, which causes disadvantages in normal operation of the power generation facility.

In order to solve the above-mentioned disadvantages, the present applicant has developed a screening apparatus for screening a water intake as disclosed in Korean Patent Laid-Open Publication No. 10-2014-0015762 (published date: 2014.02.07).

2 is a perspective view of a screen screen cleaning apparatus according to an embodiment of the present invention; FIG. 2 is a perspective view of a screen screen cleaning apparatus according to an embodiment of the present invention; And block moving means 3 for moving the block.

The foreign matter removal block 2 is a means for removing foreign substances while being seated on the screen 1 installed in the intake port. The foreign matter removal block 2 includes a base member 21, And a plurality of foreign substances removing members 22 coupled to the base member 21.

The block driving means 3 includes a support base 33 provided with a driving body 31, a winch 32 and a pulley 34 as a means for pulling or moving the foreign matter removing block 2.

According to the intake screen screen cleaning apparatus as described above, since the diver can remove the foreign matter adhered to the screen by simple operation on the ground without requiring the diver to submerge in the water of the intake portion in order to clean the screen 1, Although there are some advantages to be reduced, it involves several improvements such as the following.

First, in the above-described conventional screening apparatus for a drainage opening screen, shellfish, sea microorganisms, etc. having shells such as a barnacle removed by the foreign matter removal block 2 fall down and flow into the intake unit 40, ), It is necessary to filter them. In order to perform such filtration, additional filtration facilities or filtration operations must be performed, which increases the maintenance and repair cost.

The above-described conventional screening apparatus for the intake water screen can easily remove foreign matter adhered to the screen 1 of the intake port due to the weight of the foreign matter removal block 2, but the bottom surface of the intake port, the bottom of the open chamber, It is not possible to perform a foreign object removing operation around the intake port, and thus there is a disadvantage that it is incompatible with utilization.

It is an object of the present invention to provide an apparatus for removing foreign matter in a water, which is capable of performing removal of foreign matter in the water and sucking and removing the removed foreign matter.

It is another object of the present invention to provide a vacuum suction apparatus and a vacuum cleaner which can effectively remove foreign substances from various underwater facilities as well as foreign matters such as fish and shellfish attached to a screen of a power plant intake port, So that it can be used in a compatible manner.

It is a further object of the present invention to provide an apparatus and a method for removing foreign matter from various facilities such as a screen of a power generation facility intake port, a floor of an intake port, a duct, a bottom of an open chamber, a retaining wall, The present invention also provides an apparatus for removing foreign matter in a water vessel, which can secure the operation stability of a power generation facility by being sucked and removed, thereby reducing the maintenance cost and improving the safety.

In order to attain the above object, the apparatus for removing foreign substances in water according to the present invention is a device for removing water in a water, comprising: a foreign matter suction main body having a foreign matter inlet port through which foreign matter flows and a foreign matter outlet port through which foreign matter is discharged; A foreign matter suction member having a compressed air spouting portion formed in the suction main body; A compressed air supply line having one end connected to a compressed air supply source and the other end connected to a compressed air ejecting portion of the foreign matter suction member; A foreign matter discharge line connected to a foreign matter discharge port of the foreign matter suction member for discharging foreign matter to the outside; And a vacuum inhalation device connected to the inside of the foreign matter discharge line so as to apply a negative pressure.

Preferably, the apparatus for removing foreign substances in water according to the present invention comprises: a peeling member installed on the foreign matter suction member to apply a removing force to a foreign matter adhering thereto; A weight member provided on the foreign matter suction member and increasing a load load when the foreign substance suction member is lowered; And a foreign matter inlet duct installed at the foreign matter inlet.

The peeling member may include a scraper having a plurality of pressing protrusions formed on an outer surface of the arc-shaped body, a scraper pin installed in the foreign matter inlet duct to rotatably support the scraper, And may include an elastic member.

The foreign matter suction main body may be formed in a tubular shape such that the foreign matter suction port penetrates the external surface and the foreign matter discharge port penetrates the upper portion, and the compressed air spray part may protrude toward the foreign matter discharge port inside the foreign matter suction main body .

Meanwhile, the apparatus for removing foreign substances in water according to the present invention comprises: a foreign matter inlet duct installed at the foreign matter inlet; And a rolling wheel installed in the foreign matter inflow duct to allow the foreign matter suction member to roll.

A foreign matter inlet duct installed at the foreign matter inlet; And a rolling wheel installed to allow the foreign matter suction member to roll, wherein the foreign matter inlet duct may be formed in front of and behind the foreign matter inlet, respectively.

Meanwhile, the foreign matter suction member moving means may be configured to apply a moving force so that the foreign matter suction member rolls the rolling wheel.

The apparatus for removing foreign substances in water according to the present invention may include a pulling device for moving the foreign matter suction member up and down.

The vacuum suction apparatus may include a vacuum pump to apply a negative pressure to the foreign matter discharge line.

Preferably, the vacuum suction apparatus further comprises: a separator to which a discharge end of the foreign matter discharge line is connected; And a sludge tank connected to the separator by piping and connected to the suction side of the vacuum pump by piping.

According to the apparatus for removing foreign substances in water according to the present invention, foreign materials attached to a screen or the like can be removed using a peeling member, and the removed foreign substances can be sucked through a foreign matter suction member and collected. Particularly, a compressed air ejecting unit for ejecting compressed air is provided inside the foreign matter suction member, so that foreign matter is primarily ejected at a predetermined height or higher through an air lift action and then sucked by a vacuum suction apparatus. There is an advantage that it can be removed.

As a result, not only foreign objects such as fish and shellfish attached to the screen of the power generation facility intake port, but also foreign substances such as the floor of the power generation facility intake, the floor of the open chamber, the retaining wall, So that it is possible to secure the operation stability of the power generation facility, to reduce the maintenance cost, and to improve the safety of the power generation facility.

In addition, according to the apparatus for removing foreign substances in water according to the present invention, there is provided a foreign matter post-treatment apparatus capable of transporting foreign matter in the water to the ground, transporting the same, washing and crushing the same, And it is advantageous that foreign materials such as jellyfish and shell can be recycled as feeds and fertilizers.

Fig. 1 is a schematic view showing a water intake facility of a power plant installed on a coast,
2 is a view for explaining a conventional underwater foreign matter removing apparatus,
FIG. 3 is a schematic view showing the overall structure of an apparatus for removing foreign substances in water according to an embodiment of the present invention;
FIG. 4A is an enlarged view for explaining a main part of an underwater foreign matter removing apparatus according to an embodiment of the present invention, FIG.
FIG. 4B is an enlarged view of part A of FIG. 3 for explaining a screen foreign matter removing unit of an underwater foreign matter removing apparatus according to an embodiment of the present invention,
5 is a view for explaining an action of a foreign matter suction member applied to an underwater foreign matter removing apparatus according to an embodiment of the present invention,
FIG. 6 is an enlarged view of a portion B in FIG. 3 for explaining a bottom foreign material removing unit of an underwater foreign material removing apparatus according to an embodiment of the present invention;
FIGS. 7A and 7B are views for explaining a vacuum suction apparatus for an underwater foreign matter removing apparatus according to an embodiment of the present invention;
8A to 8D are views for explaining a modification of the apparatus for removing foreign substances in water according to an embodiment of the present invention,
9 is a view for explaining an operation of a modification of the apparatus for removing foreign substances in water according to an embodiment of the present invention.

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

FIG. 3 is a schematic view showing the overall structure of an apparatus for removing foreign substances in water according to an embodiment of the present invention. FIG. 4A is an enlarged view for explaining a main part of an apparatus for removing foreign substances in water according to an embodiment of the present invention, 4B is an enlarged view of a portion A of FIG. 3 for explaining a screen foreign matter removing unit of an underwater foreign matter removing apparatus according to an embodiment of the present invention. 5 is a view for explaining an action of a foreign matter suction member applied to an underwater foreign matter removing apparatus according to an embodiment of the present invention.

3 to 5, the apparatus for removing foreign objects according to an embodiment of the present invention is configured to perform a removal operation of a foreign object, A screen foreign matter removing unit 1 for removing foreign substances adhered to the screen bar 31 of the screen 30, a bottom foreign matter removing unit 1 'for removing foreign matters deposited on the bottom of the water intake part, A vacuum suction device 2, a foreign matter post-treatment device 5, and the like.

The screen foreign substance removing unit 1 and the bottom foreign substance removing unit 1 'are commonly provided with the foreign matter suction member 11, the compressed air supply line 12, and the foreign matter discharge line 13, This will be described in detail below.

First, the screen foreign substance removing unit 1 is provided with a foreign matter suction member 11, a compressed air supply line 12, and a foreign matter discharge line 13 as shown in FIG. 4A.

The foreign matter suction member 11 includes a foreign matter suction main body 111 formed with a foreign matter suction port 111a through which a foreign substance flows and a foreign matter discharge port 111b through which foreign matter is discharged and a foreign matter suction main body 111 formed in the foreign matter suction main body 111 A compressed air ejecting portion 112 is provided.

As shown in FIG. 5, the foreign matter suction body 11 is provided with a foreign matter inlet port 111a at one side of the outer surface of a body formed in a substantially cylindrical shape, a foreign matter outlet port 111b at the upper portion of the body, And a spout portion connection hole 111c to which a compressed air spouting portion 112 described later is connected is formed.

The compressed air blowing part 112 is inserted into the inside of the foreign matter suction main body 11 through the blowing part connecting hole 111c so that the blowing out port is protruded toward the foreign matter discharge port 111b. And performs a function of ejecting compressed air supplied and connected thereto. At this time, the compressed air ejection port 112 is formed of a substantially conical spray nozzle so that the inner diameter gradually decreases toward the ejection port.

The foreign matter suction duct (14) is provided in the foreign matter suction main body (111) so that foreign matter removed from the screen bar (31) can be introduced. The foreign matter inflow duct 14 includes a cylindrical connection port 141 connected to the foreign matter suction port 111a and a rectangular suction port 142 formed integrally with the cylindrical connection port 141 and having a substantially rectangular opening on the front surface. ).

The foreign matter suction main body 111 is formed with a discharge line connection nozzle 114 connected to the foreign matter discharge port 111b and connected to the foreign matter discharge line 13. The compressed air spray part 112 is supplied with compressed air An air line connecting nozzle 115 connected to the line 12 is formed. The discharge line connecting nozzle 114 and the air line connecting nozzle 115 are formed in a shape in which the connecting flanges 114b and 115b are coupled to the pipes 114a and 115a.

On the other hand, the compressed air supply line 12 is connected to the compressed air supply source (not shown) at one end thereof and the other end thereof is connected to the compressed air spraying unit 112 of the foreign matter suction member 11, And a flexible high pressure hose to be moved up and down together with the foreign matter suction main body 111 according to the water depth. Here, the compressed air supply source (not shown) refers to compressed air piping or a compressor. When the compressed air piping in which compressed air is always flowing as a compressed air supply source is provided as utility piping, The compressed air supply line can be connected to receive the compressed air. When a compressed air pipe is not provided, a movable compressor for generating compressed air is provided and connected to the compressed air supply line 12.

The foreign matter discharge line 13 is a pipe connected to the discharge line connecting nozzle 114 of the foreign matter suction member 11 for discharging foreign matter to the outside, and seawater is moved together with the foreign matter. The foreign matter discharge line 13 may be formed of a metal pipe, but it is preferable that the foreign matter discharge line 13 is composed of a flexible high-pressure hose since it has to be moved up and down together with the foreign matter suction main body 111 according to the working position and water depth.

The apparatus for removing foreign substances in the water may further include a pulling device (not shown) for moving the screen foreign substance removing unit 1 up and down. Although not shown in detail in FIG. 3, this traction device can be used by installing another winch 161 constituted by a foreign matter suction member moving means described later or by using a winch 161 constituted by a foreign matter suction member moving means 16 . For example, when the distal end of the rope 163 wound on the winch 161 is fixed to the foreign matter suction member 11 and the rope is moved up and down while rotating the winch in the forward and reverse directions, the compressed air supply line 12 and the foreign matter discharge The foreign matter suction member 11 including the line 13 can be moved up and down, so that foreign matters can be removed and discharged while changing the working position.

FIG. 6 is an enlarged view of a portion B of FIG. 3 for explaining a bottom foreign material removing unit of an underwater foreign matter removing apparatus according to an embodiment of the present invention.

The bottom foreign material removing unit 1 'is provided with a foreign matter suction member 11, a compressed air supply line 12 and a foreign matter discharge line 13 in the same manner as the above screen foreign substance removing unit 1, Denoted by the same reference numerals as those in the denominator (1) are denoted by the same reference numerals, but the detailed description thereof will be omitted and the elements having the differences will be mainly described.

The foreign matter suction member 11 includes a foreign matter suction main body 111 formed with a foreign matter suction port 111a through which a foreign matter is introduced and a foreign matter discharge port 111b through which foreign matter is discharged, A foreign matter inlet duct 14 provided at the foreign matter intake port 111a and a rolling wheel 15 installed to allow the foreign matter suction member 11 to roll.

The foreign matter inflow duct 14 includes a cylindrical connection port 141 connected to the foreign matter suction port 111a and a square suction port 142 formed integrally with the cylindrical connection port 141, (111a) are formed on the front and rear sides of the foreign matter suction main body (111), and foreign matter inlet ducts (14) are respectively formed in the front and rear foreign matter suction ports (111a).

The rolling wheel 15 is a wheel mounted on the foreign matter inlet duct 14 and the wheel support member 17 mounted on the foreign matter suction member 11 so as to be easily moved from the bottom of the water intake portion having the shell or tidal- And a plurality of supporting portions 152 for supporting the rolling portions 151. The supporting portion 152 is formed by a plurality of supporting portions 152,

3, the bottom foreign material removing unit 1 'comprises a foreign matter suction member moving means 16 for applying a moving force for rolling operation of the rolling wheel 15.

The foreign matter suction member moving means 16 includes a winch 161 provided on the ground and having a rope reel 161b for winding the rope 163 and a driving motor 161a for rotating the rope reel 161b, And a direction changing sheave 162 installed on the bottom surface of the underwater so that the bottom foreign material removing unit 1 'is moved during the pulling operation of the rope 163 bound to the suction member 11.

As described above, when the foreign matter suction member moving means 16 is provided, the rope is pulled forward through the direction switching pulley during the winding operation of the winch, so that the foreign matter suction member 11 is rotated in accordance with the rolling motion of the rolling wheel 15. [ Is moved forward. At this time, since the foreign matter inflow duct 14 scrapes the floor surface, the deposited foreign matter flows into the inside, and the foreign matter thus introduced flows upward by the air lift action of the compressed air blowing unit 112 .

FIGS. 7A and 7B are views for explaining a vacuum inhaler for an underwater foreign material removing apparatus according to an embodiment of the present invention, wherein FIG. 7A is a schematic front view and FIG. 7B is a schematic plan view.

 The vacuum suction device 2 is a device for secondarily vacuuming and discharging a foreign substance that is primarily ejected by the action of an air lift of the foreign matter suction member 11 to the outside and using a vacuum pump 21 If the vacuum system is configured to suck and discharge the foreign matter, a known vacuum system can be selected without restriction.

For example, the vacuum suction apparatus 2 can be constructed in the same manner as the technique disclosed in Korean Patent Registration No. 10-1099266, and in a similar manner, but in this embodiment, as shown in Figs. 3, 7A and 7B A vacuum system including a separator 22, a sludge tank 23, and a vacuum pump 21.

The vacuum pump 21 is a pump installed to apply a negative pressure to the foreign matter discharge line 13, and the suction side is connected to the sludge tank 23 via a pipe. At this time, the vacuum pump 21 can be constructed by selecting a water-sealed type vacuum pump or a direct-coupled type vacuum pump which is manufactured in accordance with a desired suction head and circulated in the market.

The separator 22 separates foreign matter and seawater contained in the material sucked by the negative pressure formed by the operation of the vacuum pump 21 from the air. The separator 22 is usually a cyclone separator or a drain separator. And a water separator called a water separator. Here, since a cyclone separator or a drain separator is a general device in the field of vacuum systems, a detailed description of the detailed structure is omitted.

The discharge end of the foreign matter discharge line 13 is connected to one side of the container main body 221 and the drain pipe 222 for discharging seawater and foreign substances separated in the lower part of the container main body 221 And a pipe 223 connected to the sludge tank 23 is connected to the upper part of the container main body 221.

A sludge tank 23 is a storage container in which a plurality of sludge tanks 23 are arranged in parallel and one side of the container body 221 is connected to the separator 22 by piping, And a pipe 233 connected to the vacuum pump 31 is connected to an upper portion of the container main body 231. The vacuum pump 31 is connected to a drain pipe 232 through which a foreign substance is discharged.

On the other hand, the foreign substance post-treatment device 5 is a component for post-treating the foreign matter discharged through the foreign matter discharge line 13 according to the operation of the vacuum suction device 2, A first screw conveyor 52, a crusher 53, and a second screw conveyor 54. The washing machine 51 includes a washing machine 51, a first screw conveyor 52, a crusher 53,

The washing machine 31 is a device for washing foreign substances such as shells and jellyfish that have been introduced through piping after being separated from the separator 22 by washing water and the first screw conveyor 52 is washed by the washing machine 31 The crusher 53 is a device for crushing the foreign matter transferred from the first screw conveyor 52 and the second screw conveyor 54 is a device for conveying the crushed foreign matter to the conveyer Transfer device.

The crusher 53 is provided with a crusher body 532 in which a crusher for crushing is installed in the upper part of the support frame 531. A crushing hopper 533 for receiving the crushed product is installed on the crusher body 532 As shown in Fig.

FIGS. 8A to 8D are views for explaining a modification of the apparatus for removing foreign substances in water according to an embodiment of the present invention. FIG. 8A is a view for explaining another embodiment of a screen foreign substance removing unit applicable to an underwater foreign body removing apparatus Fig. 8B is a plan view, Fig. 8C is a front view showing an enlarged view of the peeling member of the screen foreign matter removing unit, and Fig. 8D is a view for explaining the action of the peeling member.

8A to 8D, the screen foreign substance removing unit 1 is provided with a foreign matter suction member 11, a compressed air supply line 12, and a foreign matter discharge line 13 provided with a foreign matter inflow duct 14 , A rolling wheel 15 'and a peeling member 18 are further provided.

The rolling wheel 15 'is installed in the foreign matter inflow duct 14 so as to roll on the screen bar 31 (see FIG. 8B) when the foreign matter suction member 11 is moved up and down. Is connected to an extension supporting portion (19) extending from the foreign matter inflow duct (14). At this time, the rolling wheel 15 'is formed in a substantially circular wheel shape, and a bar insertion groove 153 is formed so as to be inserted into the screen bar 31 formed in a flat surface on the outer circumferential surface and roll.

The peeling member 18 is a member provided on the extended support 19 for applying a removal force to the foreign substance fixed to the screen bar 31 and is provided on the gap of the screen bar 31 as shown in Figs. And a plurality of them are provided along the lateral direction.

As shown in FIG. 8C, the peeling member 18 may be formed in various shapes and shapes without any particular limitation as long as it can effectively remove the foreign substances adhered to the screen bar 31. However, in the present embodiment, (181), a scraper pin (182), an elastic member (183), and the like.

The scraper 181 has a plurality of pressing protrusions 181a formed on a part of an outer surface of a body formed to have a circular arc shape. The two scrapers 181 are arranged in pairs so as to face each other so as to have an approximately elliptical shape, (Not shown). The scraper 181 scrapes the surface of the screen bar 31 while the pressing protrusion 181a moves in the vertical direction, thereby removing foreign matter.

The scraper pin 182 is a member having a substantially round bar shape and is provided on the extended support portion 19 to rotatably support the scraper 181 described above.

The elastic member 183 is composed of a compression coil spring having one end connected to one side portion of the scraper 181 and the other end connected to the extended support portion 19 as shown in Fig. And applies a pulling force to the shrunk scraper 181 to apply an elastic force so that the pressing protrusion 181a of the scraper can scratch the foreign object while pressing the surface of the screen bar.

9 is a view for explaining an operation of a modification of the apparatus for removing foreign substances in water according to an embodiment of the present invention.

9, the screen foreign matter removing unit 1 includes a foreign matter suction member 11 having a foreign matter inflow duct 14, a compressed air supply line 12, a foreign matter discharge line 13, a rolling wheel 15 And a weight member 6 for increasing the load load when the screen foreign matter removing unit 1 is lowered while the peeling member 18 is constructed.

When the weight member 6 is provided, the weight member 6 can be constructed by attaching a heavy object to the foreign matter suction member 11 or installing the weight member 6 in a detachable manner. When the weight member 6 is provided, The lower part of the peeling member 18 simultaneously scrapes the surface of the screen bar 31 with a stronger pressing force by increasing the self weight of the peel member 1 so that the shell or the like can be more effectively peeled off.

Hereinafter, a principal function of the apparatus for removing foreign matters in water according to an embodiment of the present invention will be briefly described.

The apparatus for removing foreign matter in the water according to the present invention operates the vacuum pump 21 of the vacuum suction device 2 so that a negative pressure is applied to the foreign matter discharge line 13 and the compressed air is supplied from the compressed air supply source to the compressed air supply line 12. [ When the screen foreign matter removing unit 1 is moved up and down while supplying the foreign substances to the screen bar 30 of the water intake unit 40, the foreign substance adhered to the screen bar 31 is sucked and removed. When the rope is pulled by operating the winch 161 of the foreign matter suction member moving means 16, the bottom foreign matter removing unit 1 'rolls on the bottom of the water intake portion to perform the action of sucking and removing foreign substances deposited and remaining .

Particularly, the screen foreign matter removing unit 1 and the bottom foreign substance removing unit 1 'according to the present invention effectively separate and suck foreign matter in relatively deep water by using a vacuum pump 21 having a low suction head A unique action effect can be obtained. Such action and effect are performed by the foreign matter suction member 11 configured to exert an air lift effect as a means for sucking the foreign matter, which will be specifically described below.

More specifically, the air lift effect refers to a phenomenon in which the liquid in the tube is pumped up to the top of the liquid tube when the compressed air is fed to the lower part of the liquid pumping tube. As shown in FIG. 5, the foreign matter suction member 11 is provided with a compressed air jetting unit 112 for supplying compressed air to the lower portion of the foreign matter discharge line 13, which is a liquid pumping tank, ) Acts primarily to eject the foreign matter above a certain height. Thereafter, the foreign matter that is primarily discharged through the air lift operation is sucked and discharged by the negative pressure according to the operation of the vacuum pump, thereby making it possible to remove the foreign matter at a deep water depth.

In other words, the vacuum pump used for suctioning foreign substances in water usually requires excessive investment in equipment when the suction head of the currently commercialized product does not exceed 6 meters (M) or increases the suction head, There is a limit that can not be used for the removal of foreign matter in water more than 6 meters (M). However, as in the present embodiment, when compressed air is supplied to the inside of the foreign matter suction member 11 and compressed air is supplied to give an air lift effect, when foreign matter is first ejected at a predetermined height or more, It is possible to suck and remove the foreign substances in the deep region, so that the above-mentioned conventional limitations can be overcome at low cost.

For example, as shown in FIG. 3, when the underwater foreign material device according to the present embodiment is installed in the water intake part 40 formed to have a depth of 6 meters, a maximum high water depth of 12 meters, and a height of 20 meters, High pressure compressed air is supplied to the compressed air jetting unit 112 so as to be lifted up to 14 meters from the bottom of the water surface, and then the vacuum pump 21 having a suction head of about 6 meters (M) is used So that the foreign matter can be discharged and removed.

The present invention is not limited to the above-described embodiment, but may be modified in various ways within the scope and spirit of the present invention as set forth in the claims below. It will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the appended claims.

1: screen foreign substance removing unit 1 ': floor foreign substance removing unit
11: foreign matter suction member 111: foreign matter suction body
112: Compressed air jetting unit 114: Discharge line connection nozzle
115: air line connection nozzle 12: compressed air supply line
13: Foreign matter discharge line 14: Foreign matter inlet duct
15, 15 ': rolling wheel 16: foreign matter suction member moving means
161: Winch 162: Reversing pulley
18: peeling member 181: scraper
182: Scraper pin 183: Elastic member
19: extension support 2: vacuum suction device
21: Vacuum pump 22: Separator
23: sludge tank 5: foreign matter post-treatment device
51: washer 52: first screw conveyor
53: crusher 54: second screw conveyor
6:

Claims (10)

1. An underwater foreign matter removing apparatus comprising:
A foreign matter suction member having a foreign matter suction main body formed with a foreign matter suction port into which foreign matter flows and a foreign matter discharge port through which foreign matter is discharged and a compressed air spraying part formed in the foreign matter suction main body to blow out compressed air; A compressed air supply line having one end connected to a compressed air supply source and the other end connected to a compressed air ejecting portion of the foreign matter suction member; A foreign matter discharge line connected to a foreign matter discharge port of the foreign matter suction member for discharging foreign matter to the outside; A peeling member provided on the foreign matter suction member to apply a removing force to the foreign matter adhering thereto; A weight member provided on the foreign matter suction member and increasing a load load when the foreign substance suction member is lowered; A foreign matter inlet duct installed at the foreign matter inlet and a rolling wheel installed to allow the foreign matter suction member to roll,
A vacuum pump for applying a negative pressure to the foreign matter discharge line so that a negative pressure is applied to the foreign matter discharge line, a separator to which a discharge end of the foreign matter discharge line is connected, and a pipe connected to the separator, Further comprising a vacuum inhalation device including a sludge tank connected to a suction side by a pipe,
Wherein the foreign matter suction main body has a tubular shape in which the foreign matter suction port penetrates the outer surface thereof and the foreign matter discharge port penetrates the upper surface,
The compressed air spraying part is formed in the foreign matter suction main body so as to protrude toward the foreign matter discharge port,
The peeling member may include a scraper having a plurality of pressing protrusions formed on the outer surface of the arc-shaped body, a scraper pin installed in the foreign matter inlet duct to rotatably support the scraper, an elastic member installed to apply a pressing force to the scraper, Wherein the foreign substance removing device comprises:
delete delete delete delete The method according to claim 1,
Wherein the foreign matter inlet duct is formed in front of and behind the foreign matter inlet port, respectively.
The method according to claim 6,
And a foreign matter suction member moving means for applying a moving force such that the foreign matter suction member rotates the rolling wheel.
The method according to claim 1,
And a traction device for moving the foreign matter suction member up and down.
delete delete

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