KR20230029276A - Mud pump device, excavator for dredging and precision dredging equipment system including the same, and precision dredging method using the system - Google Patents

Abstract

The present invention relates to a mud pump device, a dredging excavator and precision dredging equipment system including the mud pump device, and a precision dredging method using the precision dredging equipment system. The mud pump device according to an embodiment of the present application may comprise: a mud pump including a discharge line for discharging a dredging target sucked through a suction port formed at a lower end; a suction guide including an outer circumferential member forming a suction path connected to and communicating with the suction port so as to guide the suction of the dredging target into the suction port; a bracket provided on an upper side of the mud pump for assembly with the excavator; and a connection frame connecting the mud pump and the bracket, thereby capable of being applied to the excavator to enable dredging work by being put into shallow dredging work sites where dredgers cannot be inserted.

Description

Mud pump device, dredging excavator and precision dredging equipment system including the same, and precision dredging method using the same

The present disclosure relates to a mud pump device, a dredging excavator and precision dredging equipment system including the mud pump device, and a precision dredging method using the precision dredging equipment system.

In general, dredging is performed to deepen the water by sucking sediment present on the bottom surface of the water surface, such as the sea or inland water surface. For this dredging work, the dredging work to deepen the depth of rivers, canals, harbors, and seaways is carried out by installing appropriate facilities and equipment according to the depth of the water area to be dredged, the type of soil on the bottom, and the transportation distance of the dredged material. enforce

The dredger, which is a conventional dredging equipment for dredging, cannot be put into a site where the depth of dredging is shallow (eg, a site with a depth of around 5m), and when excavating a grab at a site where the depth of dredging is shallow, waiting time for subsequent processes is reduced. This has been a long-term occurrence, leading to an increase in input costs. In addition, in sites with a small daily excavation volume (for example, a site with an optimal daily excavation volume of 1000 to 1500 m ³ ), the input of small equipment is required.

In addition, there was a difficulty in requiring the introduction of dredging equipment that is easy to install and move at dredging work sites where frequent avoidance is expected due to poor weather conditions.

The background technology of the present application is disclosed in Korean Patent Registration No. 10-0650111.

The present invention is to solve the problems of the prior art described above, and is a mud pump device applied to an excavator to enable dredging work by being put into a dredging work site with a shallow depth where a dredger cannot be inserted, a dredging excavator including the same, and precision dredging equipment It is an object of the present invention to provide a system and a precise dredging method using the system.

However, the technical problems to be achieved by the embodiments of the present application are not limited to the technical problems as described above, and other technical problems may exist.

As a technical means for achieving the above technical problem, a mud pump device according to an embodiment of the present application includes a mud pump including a discharge line for discharging a dredging target sucked through an inlet formed at a lower end; a suction guide including an outer circumferential member connected to the suction hole to form a suction path communicating with the suction hole to guide the suction of the dredging target into the suction hole; A bracket provided on the upper side of the mud pump for assembly with the excavator; and a connecting frame connecting the mud pump and the bracket.

In addition, the suction guide includes a lower end protruding member protruding downward from the lower end of the suction path to induce disturbance of the dredging surface at the lower side of the suction path, and the protrusion member enables the dredging target to enter the suction path It may include a plurality of lower end wedge-shaped members that cross the lower side of the suction path so that the lower end is open and the width becomes narrower toward the lower side.

In addition, the suction guide is provided to be able to rotate in the vertical direction as a rotation axis, and as the plurality of wedge-shaped members are interlocked and rotated by the rotation of the suction guide, the dredge surface at the lower side of the suction path is formed in the suction guide Compared to non-rotation, disturbance may proceed.

In addition, the suction guide includes a plurality of circumferential wedge-shaped members protruding downward from the outer circumferential member and disposed at intervals along a circumferential direction of the outer circumferential member, the plurality of circumferential wedge-shaped members extending along the outer circumferential member. It may be disposed so as to obliquely and downwardly project from the circumferential member in an outer radial direction.

In addition, at the lower end of the outer circumferential member, a plurality of upwardly recessed outer inlet grooves are formed at intervals along the circumferential direction, and through the plurality of outer inlet grooves, the plurality of circumferential wedge-shaped members are seated on the dredging surface, or The dredged soil disturbed while being inserted may enter the lower side of the suction path as a dredging object.

In addition, at least one mesh portion may be provided on the outer circumference member so as to guide the inflow of the dredged soil floating outside.

In addition, the mud pump device further includes an air line connected to the discharge line to supply air in a direction opposite to the discharge of the discharge line and discharge air to the dredging surface below the suction path, Air discharge may be controlled to proceed in consideration of the need for air ejection through the air line when the mud pump is not operated so that the air discharge is not overlapped with suction of the dredging target by the mud pump.

In addition, the suction guide is provided such that the suction path forms at least a partial spiral path, and a spiral flow may be induced in the air passing through the suction path from the air line through the discharge line by the spiral path. there is.

In addition, the excavator for dredging according to an embodiment of the present application includes a mud pump device according to an embodiment of the present application; an arm portion to which the bracket is mounted; and an arm driver providing a driving force to the arm unit.

In addition, a precision dredging equipment system using an excavator according to an embodiment of the present application includes a floating structure disposed to float on a water surface; a dredging excavator according to an embodiment of the present application disposed on the floating structure; and a transfer pipe connected to a discharge line of a mud pump device mounted on the dredging excavator and provided to transfer dredging targets discharged through the discharge line.

In addition, the precision dredging device system includes a mud pump dedicated power pack disposed on the floating structure to supply separate power to the mud pump device mounted on the dredging excavator, separate from power for self-driving of the dredging excavator. can include more.

In addition, the precision dredging equipment system is connected to the underwater transport pipe so that the underwater transport pipe corresponding to the underwater section of the transport pipe is maintained at a position in a preset depth range from the surface, and the pipe extension direction of the underwater transport pipe is determined. and a plurality of buoys disposed at intervals along the water transport pipe, wherein the plurality of buoys include the weight of the underwater transport pipe and the weight of the dredging target passing through the inside of the underwater transport pipe so that the underwater transport pipe is maintained within the preset water depth range. It is provided to provide buoyancy in consideration of, and the preset water depth range may be set to a water depth range in which the influence of waves generated within a predetermined water depth from the surface of the water is relatively reduced compared to the surface of the water.

In addition, the underwater transfer pipe may be provided to include a flexible material so as to prevent or reduce damage caused by flow caused by waves in the water or underwater.

In addition, the precision dredging equipment system includes a transfer pipe air line provided to eject air in a direction corresponding to the transfer direction of the dredging target inside the transfer pipe, and the transfer pipe air line is the final transfer of the dredging target. The floating structure may be disposed on an intermediate floating structure floating in a floating area between a target area and the floating structure, and may be driven in consideration of clogging or deposition occurring in the transfer pipe.

In addition, in the precision dredging method using the precision dredging equipment system according to an embodiment of the present application, (a) preparing the excavator for dredging on the floating structure, but disposing the excavator at a position corresponding to the dredging target area, and the arm drive unit driving and positioning the mud pump device mounted on the arm part in correspondence with an area to be dredged underwater; and (b) driving the mud pump to suction the dredging target through the suction guide, and transferring the sucked dredging target to a target area through the transfer pipe, wherein the steps (a) and the above Step (b) may be repeatedly performed one or more times.

The above-described problem solving means are merely exemplary and should not be construed as intended to limit the present disclosure. In addition to the exemplary embodiments described above, additional embodiments may exist in the drawings and detailed description of the invention.

According to the above-described problem solving means of the present application, the mud pump device includes a mud pump including a discharge line for discharging the dredging target sucked through the inlet, thereby sucking in the dredging target at the dredging work site and dredging at the dredging work site. can make this possible.

In addition, according to the above-described problem solving means of the present application, the mud pump device is provided with a bracket on the upper side of the mud pump, so that it can be assembled with an excavator, so that the mud pump device is The assembled excavator can be put in, so dredging work can be done at a shallow dredging site.

In addition, according to the above-described problem solving means of the present application, the suction guide includes a lower end protruding member protruding downward from the lower end of the suction path, so that disturbance of the dredge surface at the lower side of the suction path can be induced, so that the suction of the disturbed dredging target is reduced. can be made easier.

In addition, according to the above-mentioned problem solving means of the present application, the suction guide is provided to be able to rotate in the vertical direction as a rotation axis, so that the plurality of lower end wedge-shaped members are interlocked and rotated by the rotation of the suction guide, and the suction path lower side The dredged surface is more disturbed than when the suction guide is not rotated, so that the disturbed dredging target can be more easily suctioned.

In addition, according to the above-mentioned problem solving means of the present application, the suction guide protrudes downward from the outer circumferential member and includes a plurality of circumferential wedge-shaped members disposed at intervals along the circumferential direction of the outer circumferential member, thereby rotating the stone line guide As the plurality of circumferential wedge-shaped members are interlocked and rotated, the dredging surface below the suction path and the dredging target around the dredging surface are disturbed, so that the disturbed dredging target can be more easily sucked in.

In addition, according to the above-mentioned problem solving means of the present application, the suction guide is formed with a plurality of outer inlet grooves recessed upward along the circumferential direction at the lower end of the outer circumferential member, so that a plurality of circumferential wedge-shaped members are seated on the dredging surface or therefor The dredged soil disturbed while being inserted can enter the lower suction path as a dredging target, so the dredging target can be sucked in.

In addition, according to the above-described problem solving means of the present application, the outer circumference member is provided with at least one mesh portion that allows the inside and outside to pass through, so that when the disturbed dredged soil floats outside, the inflow of the dredged soil is induced and the dredged soil floating outside can be inhaled.

In addition, according to the above-mentioned problem solving means of the present application, the mud pump device includes an air line connected to the discharge line, so that air is supplied in the direction opposite to the discharge of the discharge line, and air is ejected to the dredging surface below the suction path to dredging. The object can be disturbed to facilitate suction of the disturbed dredged object.

In addition, according to the above-described problem solving means of the present application, air discharge through the air line is performed in consideration of the need for air ejection through the air line when the mud pump is not operating so that the air discharge is not overlapped with the suction of the dredging target by the mud pump. When the suction efficiency of the dredging target is reduced, it is possible to control the air ejection to disturb the surrounding ground.

In addition, according to the problem solving means of the present application described above, the suction guide is provided so that the suction path forms at least a part of the spiral path, and the spiral flow of the air passing through the suction path from the air line through the discharge line is caused by the spiral path. By being guided, when air is ejected to the dredging surface, the air discharge flow is more disturbed than the air line that is not guided to the spiral flow, so that the disturbed dredging object can be more easily sucked in.

In addition, according to the above-described problem solving means of the present application, the excavator for dredging includes an arm portion to which a bracket provided on the upper side of the mud pump device is mounted and an arm driver for providing driving force to the arm portion, so that the arm portion and the arm drive unit include the mud pump device. can be moved, so the dredging work area can be expanded without moving the dredging excavator.

In addition, according to the above-mentioned problem solving means of the present application, the precision dredging equipment system includes a transfer pipe connected to the discharge line of the mud pump device mounted on the excavator for dredging, thereby transporting the dredging target discharged through the discharge line, and finally It is possible to make the dredging object reach the target area to be transported.

In addition, according to the above-described problem solving means of the present application, the precision dredging equipment system provides mud disposed on a floating structure to supply separate power to a mud pump device mounted on a dredging excavator, separate from power for driving the dredging excavator. By including the power pack dedicated to the pump, the intake efficiency of the mud pump device can be maintained regardless of the operation of the dredge excavator, thereby preventing a drop in suction efficiency of the mud pump due to a drop in power supply during driving of the dredge excavator.

In addition, according to the above-described problem solving means of the present application, the precision dredging equipment system maintains the underwater transfer pipe corresponding to the underwater section of the transfer pipe at a position of a preset depth range from the surface, so that occurrence occurs within a predetermined depth from the surface of the water. Safety can be improved by reducing the effect of waves that fall relative to the surface of the water.

In addition, according to the above-described problem solving means of the present application, the underwater transfer pipe includes a flexible material, so that damage caused by flow due to water or underwater waves can be prevented or reduced, thereby improving safety.

In addition, according to the above-described problem solving means of the present application, the precision dredging equipment system includes air lines for the transfer pipe provided to eject air in a direction corresponding to the transfer direction of the dredging target inside the transfer pipe, so that It is driven to blow air in consideration of the clogging or accumulation phenomenon that occurs in the transfer pipe, so that the transfer pipe clogging or accumulation phenomenon that may occur in the transfer pipe due to the dredging target can be prevented or reduced.

1 is a view showing the overall shape of a mud pump device according to an embodiment of the present application.
2 is a view for explaining a suction guide of a mud pump device according to an embodiment of the present disclosure.
3A is a diagram for explaining an air line of a mud pump device according to an embodiment of the present disclosure.
Figure 3b is a schematic conceptual diagram for explaining the spiral flow of air in the air line of the mud pump device according to an embodiment of the present invention.
4 is a schematic conceptual diagram of an excavator for dredging according to an embodiment of the present disclosure.
5 is a schematic conceptual diagram of a precision dredging equipment system according to an embodiment of the present disclosure.
6 is a schematic conceptual diagram for illustratively explaining an implementation to which a precision dredging equipment system according to an embodiment of the present disclosure is applied on a plane area.
7 is a schematic conceptual diagram illustrating a plurality of buoys and an underwater transfer pipe of a precision dredging equipment system according to an embodiment of the present disclosure.
8 is a view for explaining an air line for a transfer pipe of a precision dredging equipment system according to an embodiment of the present disclosure.
9 is a flowchart illustrating a precision dredging method according to an embodiment of the present disclosure.

Hereinafter, embodiments of the present application will be described in detail so that those skilled in the art can easily practice with reference to the accompanying drawings. However, the present disclosure may be implemented in many different forms and is not limited to the embodiments described herein. And in order to clearly describe the present application in the drawings, parts irrelevant to the description are omitted, and similar reference numerals are attached to similar parts throughout the specification.

Throughout this specification, when a part is said to be "connected" to another part, this includes not only the case of being "directly connected" but also the case of being "electrically connected" with another element in between. do.

Throughout the present specification, when a member is referred to as being “on,” “above,” “on top of,” “below,” “below,” or “below” another member, this means that a member is located in relation to another member. This includes not only the case of contact but also the case of another member between the two members.

Throughout the present specification, when a part "includes" a certain component, it means that it may further include other components without excluding other components unless otherwise stated.

Hereinafter, a mud pump device (hereinafter referred to as 'this device') according to an embodiment of the present disclosure will be described.

1 is a view showing the overall shape of a mud pump device according to an embodiment of the present application.

Referring to FIG. 1 , the apparatus 100 includes a mud pump 110 and a suction guide 120. The device 100 may be applied to an excavator for dredging. Here, the dredging target may be dredged soil, but is not limited thereto. As another example, it is preferable to understand a dredging object as a broad concept covering various objects to be removed for dredging, as well as a concept preliminarily defined by the name of dredging soil.

The mud pump 110 may include a discharge line for discharging the dredging target sucked through the inlet 111 formed at the lower end. Referring to FIG. 1 , the lower end may be in the 6 o'clock direction. However, the positioning of the lower end is not limited thereto, and for example, the mud pump 110 may be used obliquely depending on the usage situation of the device 100, and the vertical direction may be referred to as a diagonal line. . That is, the up-and-down direction does not necessarily accurately specify spatial up and down directions, but may refer to slightly inclined up and down directions.

For example, the mud pump 110 may include a vacuum pump that is driven by a driving means such as an engine, a hydraulic motor, or an electric motor and generates a vacuum therein. Since this mud pump 110 may be provided with various technologies that are obvious to those skilled in the art, a detailed description thereof will be omitted.

2 is a view for explaining a suction guide of a mud pump device according to an embodiment of the present disclosure.

Referring to FIGS. 1 and 2, the suction guide 120 includes an outer circumferential member 121 forming a suction path 126 that is connected to the suction port 111 so that the suction of the dredging target into the suction port 111 is guided. can include For example, the outer circumferential member 121 may be provided in a shape in which the width increases toward the lower side, but is not limited thereto. As another example, the outer circumferential member 121 may be provided in a cylindrical shape such that the upper and lower widths are the same. In addition, for example, the suction guide 120 has a lower intake port 111 or a suction path 126 to prevent excessively sized gravel from flowing into the inside and blocking the intake path 126 when the dredging target is sucked. It may be provided to form a filter structure (111a) for. Illustratively, referring to (b) of FIG. 2, the filter structure 111a may be a radial mesh structure, and the radial mesh structure extends radially and is provided at intervals along the mutual circumferential direction. A plurality of first members and It may include a plurality of second members extending in the circumferential direction but spaced apart in the radial direction. Depending on the setting of the size of the gap between the first member and the second member, a size required for filtering to prevent inflow may be set.

In addition, the intake path 126 may be formed in a shape in which the width (cross-sectional area) becomes narrower in the direction of intake. However, it is not limited thereto, and as another example, the suction path 126 may be formed in a cylindrical shape having a circular cross-section.

In addition, referring to FIGS. 2(a) and 2(c), the suction guide 120 protrudes downward from the lower end of the suction path 126 so as to induce disturbance of the dredge surface at the lower side of the suction path 126. A lower end protruding member 122 may be included. In addition, for example, the lower protruding member 122 may prevent the suction guide 120 from being moved from the dredging surface or changing the installation posture when the suction guide 120 is seated or positioned on the dredging surface. , but is not limited thereto.

Referring to (b) of FIG. 2, the lower end protruding member 122 crosses the lower side of the suction path 126 so that the lower end of the suction path 126 is opened to enable entry of the dredging target, and a plurality of narrower widths toward the lower side. It may include a lower end wedge-shaped member (122a) of. For example, the plurality of lower wedge-shaped members 122a may be arranged in a cross shape extending from the center of the lower end of the suction passage 126 to an outer radius, but are not limited thereto. As another example, the plurality of lower wedge-shaped members 122a may be arranged radially extending from the center of the lower end of the suction passage 126 to an outer radius. As such, since the wedge-shaped member 122a is provided at the lower end, the contact cross-sectional area of the dredging surface of the suction guide 120 can be further increased, and the ground to be dredged can be more disturbed thereby, so that the dredging efficiency can be increased.

In addition, referring to FIG. 2 (b), the suction guide 120 protrudes downward from the outer circumferential member 121 and has a plurality of circumferential wedges disposed at intervals along the circumferential direction of the outer circumferential member 121. A member 123 may be included. For example, the plurality of circumferential wedge-shaped members 123 may be disposed in a radial form extending from the center of the lower end of the suction path 126 to the outer radius with respect to the outer circumferential member 121, but is not limited thereto , As another example, the plurality of circumferential wedge-shaped members 123 may be spirally arranged extending from the center of the lower end of the suction path 126 to the outer radius with respect to the outer circumferential member 121 . In addition, the plurality of circumferential wedge-shaped members 123 may be disposed to obliquely protrude downward from the outer circumferential member 121 in an outer radial direction.

Referring also to FIG. 2, the circumferential wedge-shaped member 123 does not protrude downward from the lower end of the outer circumferential member 121 so that the outer circumferential member 121 can be reinforced by the circumferential wedge-shaped member 123. , It may be provided in the form of protruding downward from the outer circumferential surface of the outer circumferential member 121. If only the outer circumferential member 121 is provided without applying the circumferential wedge-shaped member 123, there may be some damage due to external impact during equipment movement during dredging, as well as dredging efficiency deterioration due to the lack of wedge. The outer circumferential member 121 is reinforced by providing the circumferential wedge-shaped member 123 so as to protrude from the outer surface of the outer circumferential member 121 .

The suction guide 120 may be provided so as to be rotatable with a vertical direction as a rotation axis. For example, the suction guide 120 may be provided with a rotating unit that rotates and drives the suction guide so that it can be rotated relative to the mud pump 110 . For example, the rotation unit may be provided between the mud pump 110 and the suction guide 120. However, it is not limited thereto, and as another example, a rotation unit may be provided on the upper side of the mud pump 110 to rotate both the suction guide 120 and the mud pump 110, and the rotation unit is on the arm of the excavator. It is also possible to rotate the entire apparatus 100 by adding. In addition, it goes without saying that this rotation unit can be applied to various rotation drive units, devices, and equipment that will be obvious to those skilled in the art or developed in the future.

As the plurality of lower wedge-shaped members 122a are interlocked and rotated by the rotation of the suction guide 120, the dredge surface at the lower side of the suction path 126 may be disturbed more than when the suction guide 120 is not rotated. . For example, as the plurality of lower wedge-shaped members 122a are rotated by rotation of the suction guide 120, the dredging surface at the lower side of the suction path 126 is disturbed, so that the dredging target floats underwater, increasing dredging efficiency It can be. In addition, as the plurality of circumferential wedge-shaped members 123 are interlocked and rotated by the rotation of the suction guide 120, the dredging surface below the suction path 126 and the dredging target around it are disturbed, so that the dredging target is underwater. As it floats, the dredging efficiency can be further increased. However, it is not limited thereto.

Also, referring to (a) of FIG. 2 , a plurality of upwardly recessed outer inlet grooves 124 may be formed at intervals along the circumferential direction at the lower end of the outer circumferential member 121 . For example, the outer inlet groove 124 may be formed between the plurality of circumferential wedge-shaped members 123 and may also be formed between the lower wedge-shaped members 122a. As the plurality of circumferential wedge-shaped members 123 are seated or inserted into the dredging surface, disturbed dredged soil may enter the lower side of the suction path 126 as a dredging target through the plurality of outer inlet grooves 124.

2(a) and 2(c), the outer circumferential member 121 has a mesh portion 125 that passes the inside and outside of the circumference so that the inflow of the dredged soil floating outside is induced. At least one may be provided. In other words, the outer portion of the outer circumferential member 121 may be partially opened. For example, the dredged soil floating outside may be dredged soil disturbed while the plurality of circumferential wedge-shaped members 123 are seated or inserted into the dredging surface. In addition, as another example, the dredged soil floating on the outside can be dredged soil disturbed as the plurality of lower wedge-shaped members 122 and the plurality of circumferential wedge-shaped members 123 are interlocked and rotated due to the suction guide rotated by the rotating unit. there is. In addition, this mesh portion 125 may be formed between the plurality of peripheral wedge-shaped members 123, for example, may be provided for all of the formed plurality of peripheral wedge-shaped members 123, as another example , It may be provided at a predetermined interval with respect to the formed plurality of circumferential wedge-shaped members 123. In addition, the mesh unit 125 is preferably set in the form of a mesh of an appropriate size to prevent the inflow of excessively sized particles that may cause clogging or deformation of the suction path 126 or the discharge line.

3A is a diagram for explaining an air line of a mud pump device according to an embodiment of the present invention, and FIG. 3B is a schematic diagram for explaining a spiral flow of air in an air line of a mud pump device according to an embodiment of the present application. it is a concept

On the other hand, referring to FIG. 3A , the present apparatus 100 may include an air line connected to the discharge line to discharge air to the dredge surface below the intake path 126 by supplying air in the direction opposite to the discharge of the discharge line. can For example, the air line may be connected to various air supply devices (air pumps) that supply air at a predetermined high pressure. Also, for example, the air line may suck air around the device 100 and eject air supplied at a predetermined high pressure to the dredging surface below the suction path 126 . Although not specifically shown in the drawing, the air line may be provided in the form of a line branching from the middle of the discharge line. For example, a blocking unit such as a valve for selectively opening and closing the corresponding air line may be provided at a branching portion where the discharge line and the air line diverge. For example, when the mud pump is operating, the area leading to the air line may be closed by the blocking unit. Conversely, when the operation of the mud pump is stopped and air is ejected through the air line, the area leading to the air line may be opened. At this time, the blocking unit may be provided to perform selective blocking so that only one of the air line side and the discharge line side communicates with the inlet 111.

The mud pump 110 is a pump for suctioning a dredged object such as dredged soil, and if the dredged soil around the dredged soil can be disturbed to increase the amount of soil floating around the suction port, the dredging effect can be higher. In order to increase the dredging effect, an air line for disturbing the surrounding ground may be provided. Illustratively, the air line may be a high-pressure air line. Also, illustratively, the air line may be operated when it is determined that dredging efficiency is reduced, but is not limited thereto.

Air ejection through the air line may be controlled to proceed in consideration of the need for air ejection through the air line when the mud pump 110 is not operating so that the mud pump 110 does not overlap with the suction of the dredging target. . Here, when the mud pump 110 is not operating, for example, it may be before the mud pump 110 is operating, but is not limited thereto. As another example, when the mud pump 110 is not operating, the operation of the mud pump 110 may be stopped to disturb the dredging surface when the suction rate of the dredging target of the mud pump 110 decreases. At this time, the air line is operated to eject air to the dredging surface to disturb the dredging target, and then the mud pump 110 is re-operated to suck the dredging target floating around the suction guide 120.

The device 100 may include a control unit to control the operation of the air line and the mud pump 110. The control unit may be provided in an excavator to which the apparatus 100 is mounted, and the control unit may be implemented in various forms obvious to those skilled in the art. However, it is not limited thereto.

Also, referring to FIG. 3B , the suction guide 120 may be provided such that the suction path 126 forms at least a partial spiral path. For example, in the spiral path, a portion where the discharge line and the suction path 126 are connected may be formed in a spiral shape, but is not limited thereto. By such a spiral path, a spiral flow can be induced in the air passing through the intake path 126 from the air line through the discharge line. Due to the air ejected in a spiral flow, dredging efficiency may be increased because the amount of dredging objects floating on the dredging surface is induced to increase compared to air ejected in a linear flow.

Referring to FIG. 1 , the device 100 includes a bracket 130 and a connecting frame 140.

The bracket 130 may be provided on the upper side of the mud pump 110 for assembly with the excavator 200. However, here, the excavator 200 may be understood as a broad concept encompassing an excavating device such as an arm unit integrally provided in a floating body such as a dredger.

In addition, the connection frame 140 may connect the mud pump 110 and the bracket 130. For example, the connecting frame 140 may be connected to the lower side of the bracket 130 and the upper side of the discharge line of the mud pump 110, but is not limited thereto.

Meanwhile, the present application may provide a dredging excavator (hereinafter referred to as 'this excavator') including the device 100, the arm unit 210, and the arm driving unit according to an embodiment of the present application.

4 is a schematic conceptual diagram of an excavator for dredging according to an embodiment of the present disclosure.

Referring to FIG. 4 , the bracket 130 of the device 100 may be mounted on the arm 210 . Also, the arm driving unit may provide a driving force to the arm unit 210 . The arm unit 210 may be implemented by various arm configurations that are obvious to those skilled in the art or will be developed in the future. Illustratively, the arm portion 210 may be provided to include a combination of multi-axial link members.

In addition, the arm unit 210 may be provided in combination to enable rotational drive using a vertical direction as a rotational axis, and may be provided in combination to enable rotational drive using a left-right direction as a rotational axis. At this time, the arm driving unit may be implemented by a driving force providing unit such as a motor to provide driving force for such link driving and rotation driving of the arm unit 210 to be performed. By including the arm part 210 and the arm driving part in the excavator 200, it is possible to move to a position corresponding to the dredging work area without moving the excavator 200 during position movement and installation work toward the dredging work area. there is.

In addition, the present disclosure may provide a precision dredging equipment system (hereinafter referred to as 'this system') using an excavator.

5 is a schematic conceptual diagram of a precision dredging equipment system according to an embodiment of the present disclosure, and FIG. 6 is a schematic diagram for exemplarily explaining an implementation to which the precision dredging equipment system according to an embodiment of the present disclosure is applied on a plane area. is a conceptual diagram.

Referring to FIG. 5 , the present system 1000 includes a floating structure 300 , the present excavator 200 and a transfer pipe 400 .

Referring to FIGS. 5 and 6 , the floating structure 300 may be arranged to float on water. For example, the floating structure 300 may be a watercraft, but is not limited thereto. In addition, the water surface may be a concept broadly encompassing a river bed (above river water), a sea bed (above the sea), and the like. The present excavator 200 may be disposed on the floating structure 300 .

In addition, since the present system 1000 uses the floating structure 300 in which the excavator equipped with the mud pump 110 is disposed, it can have high applicability to shallow water dredging work sites where input of existing dredgers is impossible. there is. Exemplarily, the system 1000 is sandy soil with a depth of about 5 m for dredging and can be applied to areas where input of an existing dedicated dredger is impossible. In addition, the present system 1000 can have high applicability to dredging work sites requiring the introduction of dredging equipment that is easy to install and move because frequent avoidance is expected due to weather conditions at the site.

In addition, referring to FIG. 5, the present system 1000 is a floating structure to supply separate power, which is distinguished from power for self-driving of the present excavator 200, to the device 100 mounted on the present excavator 200 ( 300) may include a power pack dedicated to the mud pump disposed on the top.

When the mud pump is connected to the power supply device for driving the excavator 200 and receives power supply, in consideration of the possibility that the dredging efficiency of the pump may decrease due to the decrease in power supply when the present excavator 200 is driven, the present application The suction efficiency of the pump can be maintained by changing the power supply method of the mud pump to manufacture a power pack exclusively for the mud pump so that the power supply to the mud pump is different from the power supply to drive the excavator.

The transfer pipe 400 of the present system 1000 may be connected to the discharge line 112 of the present device 100 mounted on the present excavator 200. Also, referring to FIG. 5 , the transfer pipe 400 may be provided to transfer dredging objects discharged through the discharge line 112 . The dredging target may mainly be dredged soil, and accordingly, the transfer pipe 400 may be an exhaust pipe. The transfer pipe 400 may be provided to reach the target area to which the dredging target is finally transferred.

7 is a schematic conceptual diagram illustrating a plurality of buoys and an underwater transfer pipe of a precision dredging equipment system according to an embodiment of the present disclosure.

Referring to FIG. 7 , the present system 1000 may include a plurality of buoys 600 . The plurality of buoys 600 are connected to the underwater transfer pipe 400 (for example, a wire, connecting members such as ropes) and may be arranged at intervals along the tube extension direction of the underwater transfer tube 400. The preset water depth range may be set as a water depth range in which the influence of waves generated within a predetermined depth from the surface of the water is relatively reduced compared to that of the surface of the water. For example, the preset water depth range may be 1 to 2 m, and may be connected and fixed to the lower part of the buoy within the range of 1 to 2 m. The underwater transfer pipe 400 is maintained at a position within a preset depth range, so that the effect of waves is relatively reduced compared to the surface of the water, so that damage to the underwater transfer pipe 400 can be prevented or reduced. Accordingly, the underwater transfer pipe 400 ) can improve safety.

The plurality of buoys 600 may be provided to provide buoyancy considering the weight of the underwater transfer pipe 400 and the dredging target passing through the inside so that the underwater transfer pipe 400 is maintained within a preset water depth range. . The buoy may be various known types of buoys capable of providing such buoyancy or buoys to be developed in the future. However, in the case of the buoy applied to the present application, as described above, the underwater transport pipe 400 and the underwater transport pipe 400 are exposed to the water surface or too high in a state in which the weight of the dredging target passing through the inside is acted upon. It is preferable to be provided so that buoyancy is provided so as to be maintained in the preset water depth range without sinking deeply.

The underwater transfer pipe 400 may be provided to include a flexible material to prevent or reduce damage caused by flow caused by water or underwater waves. For example, the underwater transfer pipe 400 may be made of a material including rubber, but is not limited thereto.

In addition, the underwater transport pipe 400 is provided to include a flexible material, so that the underwater transport pipe 400 flexibly flows along with the flow caused by the water or underwater waves, thereby preventing or reducing damage.

In addition, for example, referring to FIG. 6, the distance between the dredged dredge target and the target area (eg, sheep farm) at the dredging site corresponding to the location where the floating structure is placed may be hundreds of meters or up to 1000 m or more. there is. In the transport of the dredging target (dredged soil) for such a long distance, when a fixed maritime pipe (underwater transfer pipe) is used as a steel pipe as in the past, there was a difficulty in damaging the steel pipe due to the flow of the buoy caused by the wave. . Accordingly, the present application eliminates or greatly reduces the possibility of breakage during flow due to waves by applying a pipe made of a flexible material such as a rubber pipe instead of a steel pipe to a fixed maritime pipe, that is, an underwater transport pipe. Furthermore, the present application ensures safety (stability) by placing a tube made of a flexible material such as a rubber tube in a preset water depth range (for example, a water depth range of 1 m to 2 m) so that it can be placed out of the influence area by waves. more improved Accordingly, according to the present invention, it is possible to stably transport dredged soil over a longer distance compared to when the existing steel pipe is applied.

8 is a schematic conceptual diagram for explaining an air line for a transfer pipe of a precision dredging equipment system according to an embodiment of the present disclosure.

Referring to FIG. 8 , the system 1000 may include an air line 500 for a transfer pipe. The air line 500 for the transfer pipe may be provided inside the transfer pipe 400 to eject air in a direction corresponding to the transfer direction of the dredging target. Here, the transport direction of the dredging target is preferably a direction from the device 100 to the target area where the dredging target is finally transported. For example, referring to FIG. 8 , the transport direction of the dredging target may be a direction from 9 o'clock to 3 o'clock.

Also, referring to FIG. 8 , the transfer pipe air line 500 may be provided in a form branching from the circumferential side (eg, upper side) of the transfer pipe 400 . For example, the transfer pipe air line 500 may be connected to the transfer pipe 400 so that air ejected from the transfer pipe air line 500 branches and extends at an oblique angle so that additional air pressure can be applied in the transfer direction.

Referring to FIG. 5 , an air line 500 for a transfer pipe may be disposed on an intermediate floating structure 350 floating in a water area between the floating structure 300 and a target area where dredging objects are finally transferred. In addition, the air line 500 for the transfer pipe may be driven in consideration of clogging or deposition occurring in the transfer pipe 400 . For example, the drive of the transfer pipe air line 500 may include a control unit of the transfer pipe air line 500 for driving control of the transfer pipe air line 500 in the present system 1000, and accordingly, the transfer pipe air line 500 may be driven. Driving control of the pipe airline 500 may be made. At this time, the control unit of the transfer pipe air line 500 may be provided in the excavator 200 and integrated with the control unit 100, but is not limited thereto. As another example, the control unit of the air line 500 for the transfer pipe may be separately provided with respect to the intermediate floating structure 350 .

Meanwhile, hereinafter, a precision dredging method (hereinafter referred to as 'the present method') using the precision dredging equipment system according to an embodiment of the present disclosure will be described. However, this method shares the same or corresponding technical features as the device 100, the excavator 200, and the system 1000 described above, and the device 100, the excavator 200, and the system The same reference numerals are used for components identical or similar to those of (1000), and overlapping descriptions will be simplified or omitted.

9 is a flowchart illustrating a precision dredging method according to an embodiment of the present disclosure.

Referring to FIG. 9, the present method prepares the present excavator 200 on the floating structure 300, but arranges it in a position corresponding to the dredging target area, drives the arm drive unit, and drives the device mounted on the arm unit 210 ( 100) to correspond to the area to be dredged underwater (step S110). In this step S110, the present apparatus 100 is mounted on the arm 210 driven by the arm driving unit, and ease of dredging work can be secured through free multi-joint motion (multi-axis arm drive). In addition, the present device 100 can ensure high applicability to shallow water sites (eg, near the beach), not deep sea.

In addition, in step S110, when the device 100 is positioned corresponding to the area to be dredged underwater, the device 100 includes a lower end protruding member 122 protruding downward from the lower end of the suction path 126, thereby , When the suction guide 120 of the present device 100 is seated or positioned with respect to the dredging surface, it can be prevented from moving the suction guide 120 from the dredging surface or changing its installation posture.

In addition, referring to FIG. 9 , in this method, the mud pump 110 is driven to suck the dredging target through the suction guide 120, and the sucked dredging target is transferred to the target area through the transfer pipe 400. It may include a step (step S120). At this time, for example, the target area may be a Yangbin area (Yangbinjang), but is not limited thereto.

In step S120, when the mud pump 110 is driven to suction the dredging target through the suction guide 120, when the suction rate of the dredging target decreases when the mud pump 110 is driven, the suction guide 120 is rotated. can disturb the dredged target. In addition, in step S120, when the suction rate decreases, the operation of the mud pump 110 may be stopped according to the operator's judgment, and air may be blown through the air line to disturb the dredging target. At this time, when the disturbed dredging target floats in the water, the dredging target floating around the suction guide 120 is sucked through the mesh part 125 and the outer inlet groove 124 of the apparatus 100, and the apparatus ( 100) can increase the intake rate.

In addition, in step S120, when the sucked dredging target is transferred to the target area through the transfer pipe 400, the air line 500 for the transfer pipe is driven in consideration of the accumulation or clogging of the transfer pipe 400. By blowing air into the transfer pipe 400, the accumulated or clogged dredging target can be re-transferred to the target area. At this time, the air line 500 for the transfer pipe may be driven separately from the air line of the device 100.

In the present method, steps S110 and S120 may be repeatedly performed one or more times. For example, steps S110 and S120 may be repeatedly performed while the device 100 or the excavator 200 is moved and disposed when the dredging work of a specific dredging target area is finished. At this time, the present method is freely movable on the floating structure 300 by using the present excavator 200, and the dredging target area can be changed by moving the apparatus 100 through the arm 210 and the arm drive unit. .

The above description of the present application is for illustrative purposes, and those skilled in the art will understand that it can be easily modified into other specific forms without changing the technical spirit or essential features of the present application. Therefore, the embodiments described above should be understood as illustrative in all respects and not limiting. For example, each component described as a single type may be implemented in a distributed manner, and similarly, components described as distributed may be implemented in a combined form.

The scope of the present application is indicated by the following claims rather than the detailed description above, and all changes or modifications derived from the meaning and scope of the claims and equivalent concepts thereof should be construed as being included in the scope of the present application.

1000: Precision Dredge Equipment System
100: mud pump device
110: mud pump
111: inlet
111a: filter structure
112: discharge line
120: suction guide
121: outer peripheral member
122: lower end protruding member
122a: lower wedge-shaped member
123: peripheral wedge-shaped member
124: outer inlet groove
125: mesh part
126 suction path
130: bracket
140: connection frame
200: excavator for dredging
210: dark part
300: floating structure
350: middle floating structure
400: transfer pipe
500: Air line for transfer pipe
600: buoy
700: mud pump power pack

Claims (15)

As a mud pump device applied to an excavator for dredging,
A mud pump including a discharge line for discharging the dredging target sucked through an inlet formed at a lower end;
a suction guide including an outer circumferential member connected to the suction hole to form a suction path communicating with the suction hole to guide the suction of the dredging target into the suction hole;
A bracket provided on the upper side of the mud pump for assembly with the excavator; and
A mud pump device comprising a connection frame connecting the mud pump and the bracket. According to claim 1,
The suction guide includes a lower end protruding member protruding downward from the lower end of the suction path to induce disturbance of the dredge surface below the suction path,
The lower end protruding member includes a plurality of lower end wedge-shaped members that cross the lower side of the suction path and become narrower toward the lower side so that the lower end of the suction path is opened so that the dredging target can enter. Mud pump device. According to claim 2,
The suction guide is provided to be able to rotate in the vertical direction as a rotation axis,
As the plurality of lower wedge-shaped members rotate in conjunction with the rotation of the suction guide, the dredging surface below the suction path is more disturbed than when the suction guide is not rotated. According to claim 2,
The suction guide includes a plurality of circumferential wedge-shaped members protruding downward from the outer circumferential member and disposed at intervals along the circumferential direction of the outer circumferential member,
The mud pump device, wherein the plurality of circumferential wedge-shaped members are disposed to protrude obliquely downward in an outer radial direction from the outer circumferential member. According to claim 4,
At the lower end of the outer circumferential member, a plurality of upwardly recessed outer inlet grooves are formed at intervals along the circumferential direction,
Through the plurality of outer inlet grooves, the mud pump device, wherein the dredged soil disturbed as the plurality of circumferential wedge-shaped members are seated or inserted into the dredging surface enters the lower side of the suction path as a dredging target. According to claim 4,
The mud pump device, wherein the outer circumference member is provided with at least one mesh portion that passes the inside and outside around the circumference so that the inflow of dredged soil floating outside is induced. According to claim 1,
The mud pump device further includes an air line connected to the discharge line to supply air in a direction opposite to the discharge of the discharge line and discharge air to the dredge surface below the suction path,
The air ejection through the air line is controlled to proceed in consideration of the need for air ejection through the air line when the mud pump is not operated so that the mud pump does not overlap with the suction of the dredging target. pump device. According to claim 7,
The suction guide is provided so that the suction path forms at least a partial spiral path,
The mud pump device, wherein a spiral flow is induced in the air passing through the suction path from the air line through the discharge line by the spiral path. As an excavator for dredging,
The mud pump device according to claim 1;
an arm portion to which the bracket is mounted; and
A dredging excavator comprising an arm driving unit providing a driving force to the arm unit. As a precision dredging equipment system using an excavator,
a floating structure arranged to float on the water;
a dredging excavator according to claim 9 disposed on the floating structure; and
A precision dredging equipment system including a transfer pipe connected to the discharge line of the mud pump device mounted on the dredging excavator and provided to transfer the dredging target discharged through the discharge line. According to claim 10,
The precision dredging equipment system further includes a mud pump dedicated power pack disposed on the floating structure to supply separate power to the mud pump device mounted on the dredging excavator, which is different from power for self-driving of the dredge excavator. That is, the precision dredging equipment system. According to claim 10,
The precision dredging equipment system is connected to the underwater transfer pipe so that the underwater transfer pipe corresponding to the underwater section of the transfer pipe is maintained at a position in a preset depth range from the surface, and is spaced apart along the pipe extension direction of the underwater transfer pipe. Including a plurality of buoys disposed over,
The plurality of buoys are provided to provide buoyancy considering the weight of the underwater transport pipe and the dredging target passing through the inside of the underwater transport pipe so that the underwater transport pipe is maintained in the preset water depth range,
The preset water depth range is set to a water depth range in which the influence of waves generated within a predetermined water depth from the surface of the water is relatively reduced compared to the surface of the water. According to claim 12,
The underwater transfer pipe is provided to include a flexible material to prevent or reduce damage caused by water or underwater waves. According to claim 10,
The precision dredging equipment system,
An air line for a transfer pipe provided inside the transfer pipe to eject air in a direction corresponding to the transfer direction of the dredging target,
The air line for the transfer pipe is disposed on an intermediate floating structure floating in the water area between the floating structure and the target area to which the dredging target is finally transferred, and is driven in consideration of clogging or deposition occurring in the transfer pipe. In, precision dredging equipment system. A precision dredging method using the precision dredging equipment system according to claim 10,
(a) The excavator for dredging is prepared on the floating structure, but is disposed at a position corresponding to the dredging target area, and the arm drive unit is driven so that the mud pump device mounted on the arm unit corresponds to the dredging target area underwater. positioning; and
(b) driving the mud pump to suction the dredging target through the suction guide, and transferring the sucked dredging target to a target area through the transfer pipe,
The step (a) and the step (b) can be repeatedly performed one or more times, precision dredging method.

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