Filter box and cutter suction dredger

Abstract

The utility model relates to the technical field of cutter suction dredgers, in particular to a filter box and a cutter suction dredger. A filter box comprises a containing box, the containing box comprises a feeding port and a discharging port, the feeding port is used for being connected with a dredge pipe, and the discharging port is used for being connected with a dredge pump; the filtering grid is arranged at the discharging opening, the filtering grid is used for filtering filter residues, the filtering grid comprises at least one movable rod, and the movable rod is movably connected with the containing box; and the hydraulic rod is connected with the movable rod, and the hydraulic rod stretches out and draws back to drive the movable rod to move, so that the maximum passing granularity of the filtering grating is increased. The device not only can filter silt, but also can move the movable rod to dredge a blocked area when filter residues are blocked by the filtering grating, and the situation that the dredging efficiency is affected due to the fact that the filtering grating is blocked is reduced as much as possible. The device overcomes the defect that in the prior art, a filter screen is arranged at a discharge port of a containing box of a cutter suction dredger mostly, but stones are prone to being clamped on the filter screen, and dredging efficiency is affected.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of cutter suction dredger, especially to a filter box and cutter suction dredger. BACKGROUND

[0002] Cutter suction dredger, also known as cutter suction dredger, is a kind of ship specially used for dredging underwater sediments, which can be used to excavate silt, sand and other sediments of seabed or riverbed, and transport them to the designated position by pumping system. Cutter suction dredger is widely used in the maintenance dredging of port and channel, reclamation, reclamation and other engineering projects. They can efficiently process various types of soil, including silt, sand, gravel and even rock.

[0003] The filter box of cutter suction dredger is one of the key equipment on the ship for processing the slurry mixture extracted from the seabed. When the cutter suction dredger is dredging, the cutter stirs the sediments on the seabed and sucks them into the pumping system on the ship through the mud pump and suction pipe. The sucked substances contain a large amount of water and various sizes of filter residue.

[0004] The existing cutter suction dredger is usually provided with a filter screen at the inlet of the suction pipe, but the shape and size of the filter screen are different, which is easy to be stuck in the filter hole of the filter screen, resulting in the blockage of the filter screen, and the dredging efficiency is affected by frequent stopping of the suction operation and cleaning or replacing the filter screen. UTILITY MODEL CONTENTS

[0005] The utility model aims at overcoming the deficiency that the cutter suction dredger is usually provided with a filter screen at the inlet of the suction pipe in the prior art, but the filter residue such as stone is easy to be stuck on the filter screen, resulting in the decrease of dredging efficiency, and provides a filter box and cutter suction dredger.

[0006] In the first aspect, the utility model provides a filter box, which comprises:

[0007] A containing box comprising a feed inlet and a discharge outlet, the feed inlet being used for connecting the suction pipe, and the discharge outlet being used for connecting the mud pump;

[0008] A filter grid provided at the discharge outlet, the filter grid being used for filtering the filter residue, and the filter grid comprising at least one movable rod, the movable rod being movably connected with the containing box;

[0009] A hydraulic rod connected with the movable rod, the hydraulic rod being capable of driving the movable rod to move so as to increase the maximum passing particle size of the filter grid.

[0010] The mud pump is a key component of a cutter suction dredger. Its main function is to extract mud from the seabed or other underwater environments and transport it through a pipeline system to the ship's storage area or directly to a designated unloading location. The filter screen includes at least one movable rod, with an external hydraulic rod for underwater operation. When filter debris gets stuck in the filter screen's pores, for example, between the movable rod and a fixed member of the filter screen, moving the movable rod increases the distance between it and the filter screen's adjacent members. This increases the maximum particle size that the filter screen can pass through in the corresponding area, allowing the stuck filter debris to detach from the filter screen and preventing it from becoming stuck and affecting dredging efficiency. Compared to existing technologies that directly install a filter screen at the inlet of the suction pipe, this device not only filters rocks but also allows the movable rod to clear blockages when filter debris gets stuck, minimizing the impact on dredging efficiency caused by filter screen blockage.

[0011] Preferably, the receiving box is provided with a through hole, the movable rod passes through the through hole, and the hydraulic rod can drive the movable rod to move along the axial direction of the through hole.

[0012] The receiving box is provided with a through hole. The movable rod passes through the through hole, and can be pulled out through the through hole, which increases the maximum particle size that can pass through the filter grid and causes the filter cake to detach from the filter grid.

[0013] Preferably, a seal is provided between the through hole and the movable rod.

[0014] A seal is installed between the through-hole and the movable rod to prevent water from being drawn into the through-hole when the mud pump is working, thus avoiding affecting dredging efficiency. The seal can be connected to either the through-hole or the movable rod.

[0015] Preferably, when at least two movable rods are included, the at least two movable rods are connected to a connecting plate, which is connected to the hydraulic rod.

[0016] When there are at least two movable rods that can be moved along their length by a hydraulic press, and at least two movable rods are connected to the same connecting plate, and the connecting plate is connected to the hydraulic rod, then several movable rods can be moved by controlling one hydraulic rod.

[0017] Preferably, the receiving box has an oblong hole along its length, the movable rod is inserted into the oblong hole, and the extension and retraction of the hydraulic rod can drive the movable rod to move along the length of the oblong hole.

[0018] The waist-shaped hole is respectively oriented towards the feeding port and the discharging port, the hydraulic rod drives the movable rod to move along the length direction of the waist-shaped hole, and the filter residue can be pushed back to the inside of the containing box.

[0019] Preferably, the containing box is provided with a limiting piece, which is used for concave-convex cooperation with the end of the movable rod away from the hydraulic rod.

[0020] There are many stones in the filter residue, and the movable rod is movably connected to the containing box, so that the limiting piece is arranged to avoid displacement of the movable rod when the stones impact the movable rod, blockage in the dredge pump, and influence on dredging efficiency.

[0021] Preferably, the movable rod is provided with a lifting lug, which is used for connecting the hydraulic rod.

[0022] The lifting lug can be arranged at one end of the movable rod, or at a non-end portion of the movable rod. The lifting lug is arranged to make the connection between the hydraulic rod and the movable rod more firm, and to improve the service life of the device.

[0023] Preferably, the containing box is provided with a discharging door, which can be opened or closed.

[0024] The discharging door discharges the filter residue outside the containing box. The discharging door can be rotatably connected to the containing box, or slidably connected to the containing box.

[0025] Preferably, the movable rod can be replaced by a telescopic rod, and the hydraulic rod drives the telescopic rod to extend or retract.

[0026] The movable rod is replaced by the telescopic rod, so that the maximum passing particle size of the filter grid can be increased by retracting the telescopic rod, and the filter residue is prevented from being stuck in the filter grid.

[0027] In a second aspect, the utility model provides a cutter suction dredger, containing suction pipe and connecting in suction pipe's dredge pump, suction pipe is connected with above -mentioned "a kind of filter box".

[0028] Using above "a kind of filter box", the maximum passing particle size of the filter grid can be changed, and the filter residue is prevented from being stuck in the filter grid, so as to improve the dredging efficiency.

[0029] Compared with the prior art, the utility model has the following beneficial effects:

[0030] 1. The utility model provides a filter box contains containing box, filter grid and hydraulic pressure rod, containing box contains feed inlet and discharge port, and the discharge port is used for connecting the mud pump, and the feed inlet is connected with the suction pipe, and the filter grid is arranged in the discharge port and is used for filtering the filter residue, and the filter grid contains at least one movable rod, and the movable rod is circumscribed with the hydraulic pressure rod, and is beneficial to the situation of underwater operation. When the filter residue in the silt is stuck, the movable rod is moved, the maximum passing particle size of the filter grid can be increased, so that the filter residue stuck by the filter grid is separated from the filter grid, and the dredging efficiency is avoided from being affected. Compared with the prior art, the filter screen is directly arranged at the discharge port of the containing box, the device not only can filter the silt, but also can move the movable rod when the filter residue is stuck in the filter grid to dredge the blocked area, and the situation that the dredging efficiency is affected by the filter residue stuck in the filter grid is reduced as far as possible. The device overcomes the deficiency that the filter screen is arranged at the inlet of the suction pipe of the cutter suction dredger in the prior art, but the filter residue such as stone is easy to be stuck on the filter screen, resulting in the decrease of the dredging efficiency.

[0031] 2. The utility model provides a cutter suction dredger, contains above -mentioned a kind of filter box, the maximum passing particle size of filter grid can be changed, filter residue is stuck in filter grid as far as possible to avoid the situation, beneficial to improve dredging efficiency. ACCURACY OF DRAWINGS

[0032] Figure 1 It is the axonometric structure schematic diagram of a filter box in embodiment 1;

[0033] Figure 2 It is the cross section structure schematic diagram of a filter box in embodiment 1 Figure 1 (dump door closed version);

[0034] Figure 3 It is the cross section structure schematic diagram of a filter box in embodiment 1 Figure 2 (dump door open version);

[0035] Figure 4 It is Figure 2 cross section structure schematic diagram in A-A direction of Figure 1 (movable rod abuts containing box version);

[0036] Figure 5 It is Figure 2 cross section structure schematic diagram in A-A direction of Figure 2 (movable rod separates from containing box version);

[0037] Figure 6 It is the axonometric structure schematic diagram of a filter box in embodiment 2;

[0038] Figure 7 It is the cross section structure schematic diagram of a filter box in embodiment 2 (dump door closed version);

[0039] Icon: 1-housing box, 11-inlet, 12-outlet, 13-waist hole, 2-filter grid, 21-moving rod, 22-connection plate, 3-hydraulic rod, 4-unloading door, 5-telescopic structure, 6-filter residue. DETAILED DESCRIPTION

[0040] The utility model will be described in further detail below in combination with test examples and specific embodiments. However, this should not be understood as limiting the scope of the above-mentioned subject matter of the utility model to the following examples only, and any technology realized based on the content of the utility model falls within the scope of the utility model.

[0041] In the description of the specific embodiments of the utility model, the terms expressing the orientation or position relationship of "up", "down", "left", "right", "center", "inner", "outer", etc. are based on the orientation or position relationship expressed in the drawings, or the orientation or position relationship used when the product / equipment / device of the utility model is normally used. These terms of orientation or position relationship are only used to facilitate the description of the utility model scheme or simplify the description in the specific embodiments, so as to enable the skilled person to quickly understand the scheme, and therefore cannot be understood as indicating or implying that a specific device / component / element must have a specific orientation or be constructed and operated in a specific position relationship, and therefore cannot be understood as limiting the utility model.

[0042] In addition, if the terms "horizontal", "vertical", "suspended", "parallel", etc. appear, it does not mean that the corresponding device / component / element must be absolutely horizontal or vertical or suspended or parallel, but can be slightly inclined or have a deviation. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined. Alternatively, it can be simply understood that the corresponding device / component / element is arranged in the direction of "horizontal", "vertical", "suspended", "parallel", etc. and can have an error / deviation of ±10% relative to the corresponding direction, more preferably an error / deviation of ±8% or less, more preferably an error / deviation of ±6% or less, more preferably an error / deviation of ±5% or less, and more preferably an error / deviation of ±4% or less. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its role in the scheme of the utility model.

[0043] In addition, the terms "first", "second", "third", etc. appearing in the terms are only used to distinguish the description of the same or similar parts, and should not be understood as emphasizing or implying the relative importance of a specific part.

[0044] In addition, in the description of the embodiments of the utility model, "several", "a plurality of", "several" represent at least 2. It can be 2, 3, 4, 5, 6, 7, 8, 9, etc. in any case, or even more than 9.

[0045] Furthermore, in the description of the technical scheme of the utility model, unless otherwise explicitly specified / limited / limited, the term "set" "installation" "connected" "connected" "provided with" "laid" "arranged" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected, which can be welding, riveting, bolting, screwing and other commonly used connecting means in the art. The connection can be mechanical connection, electrical connection or communication connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be connected inside two elements.

[0046] Embodiment 1

[0047] As Figures 1 to 5 shown, a filter box comprises:

[0048] A containing box 1 comprises a feed inlet 11 and a discharge outlet 12, the feed inlet 11 is used to connect a suction pipe, and the discharge outlet 12 is used to connect a mud pump;

[0049] A filter grid 2 is arranged at the discharge outlet 12, the filter grid 2 is used to filter filter residue, and the filter grid 2 comprises at least one movable rod 21, and the movable rod 21 is movably connected with the containing box 1;

[0050] A hydraulic rod 3 is connected with the movable rod 21, and the hydraulic rod 3 can drive the movable rod 21 to move so as to increase the maximum passing particle size of the filter grid 2.

[0051] As Figures 1 to 5 shown, the containing box 1 is provided with a through hole, the movable rod 21 penetrates through the through hole, and the hydraulic rod 3 can drive the movable rod 21 to move along the axis direction of the through hole. In the embodiment, there are two movable rods 21, but in the actual use state, the number of movable rods 21 is greater than 1, and the embodiment is not limited, and the spacing between the two movable rods 21 is not limited. As Figure 4 and Figure 5 shown, when the filter residue 6 is stuck in the filter grid 2, the mud pump stops the negative pressure adsorption work, the hydraulic rod 3 drives the movable rod 21 to move away from the containing box 1 along the length direction, so that the bottom end of the movable rod 21 is separated from the inner side wall of the containing box 1, and the filter residue 6 falls into the containing box 1 due to the blockage of the containing box 1. In the actual use process, the position height of the discharge outlet 12 is higher than that of the feed inlet 11, so that the filter residue 6 can be prevented from falling into the discharge outlet 12 as much as possible, and the dredging efficiency is affected.

[0052] In actual use, it can also include a movable rod 21 and a fixed railing. Pulling the movable rod 21 increases the maximum passing particle size of the filter grid 2, and the filter residue 6 falls into the interior of the receiving box 1.

[0053] In actual use, it can also include several movable rods 21 and several fixed stop rods, and the stop rods and movable rods 21 are arranged alternately.

[0054] A sealing element is provided between the through hole and the movable rod 21. Figures 1 to 7 (Not shown in the image). A seal is provided between the through hole and the movable rod 21 to prevent mud from flowing out of the through hole when the mud pump is working, thus avoiding affecting dredging efficiency. The seal can be connected to the movable rod 21 or to the through hole.

[0055] like Figure 4 and Figure 5 As shown, when at least two movable rods 21 are included, at least two of the movable rods 21 are connected to a connecting plate 22, and the connecting plate 22 is connected to the hydraulic rod 3. When at least two movable rods 21 capable of being driven by a hydraulic press to move along their length are included, all two movable rods 21 are connected to the same connecting plate 22, and the connecting plate 22 is connected to the hydraulic rod 3, then all movable rods 21 can be moved by controlling one hydraulic rod 3. The movable rods 21 are provided with lifting lugs ( Figures 1 to 7 (Not shown in the image), the lifting lug is used to connect the hydraulic rod 3. In this embodiment, the lifting lug is provided on the connecting plate 22, which helps to improve the stability of the movable rod 21 when it is lifted or subjected to the impact of filter residue.

[0056] The container 1 is equipped with a limiting device ( Figures 1 to 7 (Not shown in the image), the limiting member is used to limit the position of the movable rod 21 in the receiving box 1. The limiting member is used to engage with the end of the movable rod 21 away from the hydraulic rod 3. When the mud pump is in operation, one end of the movable rod 21 abuts against the inner wall of the receiving box 1, and filter residue 6 such as stones will hit the movable rod 21. Therefore, the limiting member is provided so that the movable rod 21 has sufficient force to withstand the impact of the filter residue 6 such as stones, which helps to improve the service life of the device. The specific structural form of the limiting member includes, but is not limited to, limiting holes, limiting blocks, and limiting flanges.

[0057] The receiving box 1 is equipped with a discharge door 4, which can be opened or closed. In this embodiment, the discharge door 4 is rotatably connected to the receiving box 1, and the discharge door 4 is located below the receiving box 1 to facilitate the removal of the filter residue 6 from the receiving box 1. In this embodiment, as... Figure 1 and Figure 3As shown, the discharge door 4 is driven to open or close by the telescopic structure 5. The telescopic structure 5 is extended, and the discharge door 4 is opened. The telescopic structure 5 is shortened, and the discharge door 4 is closed. In actual use, the discharge door 4 can also be slidingly connected to the containing box 1.

[0058] As shown in FIG. 1, a filter box is provided with a containing box 1, a filter grid 2, a discharge door 4, a telescopic structure 5, a hydraulic rod 3, and a movable rod 21. Figure 2 and Figure 3 As shown, in the embodiment, the filter grid 2 is arranged in front of the discharge port 12. In actual use, it can be arranged between the discharge port 12 and the discharge door 4.

[0059] Embodiment 2

[0060] As shown in FIG. 2, a filter box is provided with a containing box 1, a filter grid 2, a discharge door 4, a telescopic structure 5, a hydraulic rod 3, and a movable rod 21. Figures 6 to 7 The difference between the filter box and the filter box of embodiment 1 is that the containing box 1 is provided with a waist-shaped hole 13 along the length direction thereof, the movable rod 21 is inserted into the waist-shaped hole 13, and the hydraulic rod 3 can drive the movable rod 21 to move along the length direction of the waist-shaped hole 13.

[0061] The two ends of the waist-shaped hole 13 are respectively directed to the feeding port 11 and the discharge port 12. The hydraulic rod 3 drives the movable rod 21 to move along the length direction of the waist-shaped hole 13, so as to push the filter residue 6 back into the containing box 1. When there are at least two movable rods 21, the movement speeds of the two movable rods 21 are not equal, so that the maximum passing particle size of the filter grid 2 is increased, and the filter residue 6 is facilitated to be separated from the filter grid 2. When the mud pump is in the working state, the filter grid 2 is located at the end of the waist-shaped hole 13 directed to the discharge port 12, and the slurry cannot leak out of the waist-shaped hole 13.

[0062] Embodiment 3

[0063] The difference between the filter box and the filter box of embodiment 1 is that the movable rod 21 can be replaced by a telescopic rod, and the hydraulic rod 3 drives the movable rod 21 to be telescopic.

[0064] When the movable rod 21 is replaced by the telescopic rod, the maximum passing particle size of the filter grid 2 can be increased by retracting the telescopic rod, so as to avoid the filter residue 6 from being stuck in the filter grid 2.

[0065] Embodiment 4

[0066] A cutter suction dredger comprises a suction pipe and a mud pump connected to the suction pipe, and the suction pipe is connected with a filter box comprising any one of embodiments 1-3.

[0067] The filter box can increase the maximum passing particle size of the filter grid 2, avoid the filter residue 6 from being stuck in the filter grid 2 as much as possible, and improve the dredging efficiency.

[0068] The above merely describes preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, and improvement within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A filter tank, characterized by The utility model relates to a filter box, which comprises a containing box (1) containing a feed inlet (11) and a discharge outlet (12), the feed inlet (11) being used for connecting a suction pipe, and the discharge outlet (12) being used for connecting a mud pump; a filter grid (2) is arranged at the discharge outlet (12), the filter grid (2) being used for filtering filter residue, and the filter grid (2) comprising at least one movable rod (21) movably connected with the containing box (1); a hydraulic rod (3) is connected with the movable rod (21), and the hydraulic rod (3) is capable of driving the movable rod (21) to move so as to increase the maximum passing particle size of the filter grid (2); the containing box (1) is provided with a discharge door (4) capable of being opened or closed. The containing box (1) is provided with a through hole, the movable rod (21) penetrating through the through hole, and the hydraulic rod (3) being capable of driving the movable rod (21) to move along the axial direction of the through hole. A sealing element is arranged between the through hole and the movable rod (21). When the filter box comprises at least two movable rods (21), the at least two movable rods (21) are connected with a connecting plate (22), and the connecting plate (22) is connected with the hydraulic rod (3). The containing box (1) is provided with a waist-shaped hole (13) along the length direction thereof, the movable rod (21) being inserted into the waist-shaped hole (13), and the hydraulic rod (3) being capable of driving the movable rod (21) to move along the length direction of the waist-shaped hole (13).

2. A filter box according to claim 1, characterized in that The containing box (1) is provided with a limiting element, the limiting element being used for concave-convex matching with one end of the movable rod (21) away from the hydraulic rod (3).

3. A filter box according to claim 2, characterised in that The movable rod (21) is provided with an ear, and the ear is used for connecting the hydraulic rod (3).

4. The filter box of claim 2, wherein, The movable rod (21) can be replaced by a telescopic rod, and the hydraulic rod (3) drives the movable rod (21) to be telescopic.

5. The filter box of claim 1, wherein, The suction pipe is connected with a filter box comprising any one of the filter boxes according to claims 1-8.

6. A filter box according to any one of claims 1-5, characterized in that ​ 7. A filter box according to any one of claims 1-5, characterized in that ​ 8. The filter box of claim 1, wherein, ​ 9. A cutter suction dredger comprising a suction pipe and a suction pump connected to the suction pipe, characterized in that ​

Images