Relay sludge discharge device of dredger

Abstract

The invention discloses a dredger relay sludge discharging device, and belongs to the technical field of dredgers. A dredger relay sludge discharging device comprises a main engine room and further comprises a rib position additionally arranged on a port on the rear side of the main engine room, a paint room communicated with a port on the front side of the main engine room, an underwater sludge pump unit arranged on the port on the rear side of the main engine room, a second-level sludge pump unit installed on the port on the front side of the main engine room, and a third-level sludge pump unit installed in the middle of the main engine room. A mud pump body of the underwater mud pump unit is provided with a mud pumping end and a mud discharging end, the mud pumping end is provided with a mud pumping pipe, a filter plate used for intercepting broken stones is fixedly arranged in the mud pumping pipe, and the mud pumping pipe is arranged on the lower side of the filter plate and provided with a stone discharging mechanism. The engineering requirement of remote sludge discharge can be met, the situation that a traditional first-stage and second-stage sludge discharge cutter suction device is difficult to adapt to the dredging requirement of remote sludge discharge is met, the situation that a traditional first-stage and second-stage sludge discharge device is additionally arranged or a sludge ship and a sludge barge are additionally arranged for long-distance back-and-forth transportation with high oil consumption and low efficiency is avoided, and the construction efficiency is greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of dredgers, and in particular to a relay mud discharging device for a dredger. Background Art

[0002] A cutter suction dredger uses a rotating cutter to loosen the soil at the bottom of a river or the seabed, mix it with cement to form slurry, suck it into a pump body through a suction pipe, and send it to a mud discharging area through a mud discharging pipe. When a cutter suction dredger is under construction, dredging, mud transportation, and mud discharging are all integrated and completed by itself, with relatively high production efficiency.

[0003] In recent years, ports have been vigorously constructed and land reclamation by reclamation has been accelerated at home and abroad, and the dredging industry has developed rapidly. In order to meet the market demand, dredging companies have built many cutter suction dredgers. With the increase of underwater projects and strict environmental protection requirements, the mud discharging distance of traditional cutter suction dredgers with first-level and second-level mud discharging devices has become difficult to meet the dredging needs of long-distance mud discharging. Summary of the Invention

[0004] The purpose of the present invention is to solve the problems existing in the prior art, and to provide a relay mud discharging device for a dredger.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A relay mud discharging device for a dredger includes a main engine room, and further includes: a rib position is added to the left side of the rear side of the main engine room; a paint room is communicated with the left side of the front side of the main engine room; an underwater mud pump unit is arranged at the left side of the rear side of the main engine room; a secondary mud pump unit is installed on the left side of the front side of the main engine room; a tertiary mud pump unit is installed in the middle of the main engine room; a mud pump body of the underwater mud pump unit is provided with a mud suction end and a mud discharging end; a mud suction pipe is arranged on the mud suction end; a filter plate for intercepting gravel is fixedly arranged in the mud suction pipe; a stone discharging mechanism is arranged on the lower side of the mud suction pipe at the filter plate.

[0007] Preferably, the stone discharging mechanism includes a housing fixedly arranged on the mud suction pipe, a rotating seat rotatably connected to the housing, a plurality of material receiving grooves evenly arranged in a circumferential manner on the rotating seat, and a driving motor fixedly arranged on the housing for driving the rotating seat to rotate. The rotating seat is rotatably connected to the mud suction pipe, and a blanking groove matched with the material receiving groove is arranged at the bottom of the housing.

[0008] Preferably, a pushing seat is slidably connected in the material receiving groove, one side of the pushing seat close to the central axis of the rotating seat is set as an arc surface, and a driving part for driving the pushing seat to displace is arranged on the housing.

[0009] Preferably, the driving part includes a fixed rod fixed in the housing, a bi-directional reciprocating lead screw rotatably arranged in the fixed rod, a driven bevel gear arranged at the end of the bi-directional reciprocating lead screw, a fixed bevel gear fixedly connected to the rotating seat through a connecting plate, and sleeves threadedly connected to both ends of the bi-directional reciprocating lead screw. Each sleeve is movably connected with a swing rod. The ends of the two swing rods away from the sleeves are movably connected to each other and are in movable contact with the pushing seat. The fixed rod is fixed on the side of the housing away from the driving motor.

[0010] Preferably, a rotating ring is rotatably connected to the outside of the fixed rod, and an elastic telescopic rod is arranged between the rotating ring and the pushing seat.

[0011] Preferably, a water storage tank is arranged in the housing. A filter screen in movable contact with the rotating seat is arranged at the opening of the water storage tank. A return water pipe is arranged between the water storage tank and the sludge suction pipe.

[0012] Preferably, a rotating rod is rotatably connected in the sludge suction pipe. A crankshaft is arranged on the rotating rod. A collar is sleeved on the crankshaft. A connecting rod is fixedly arranged on the collar. The end of the connecting rod away from the collar is movably connected with a movable frame. The movable frame is slidably connected to the inner wall of the sludge suction pipe. A plurality of ejector rods inserted into the filter holes of the filter plate are arranged on the movable frame.

[0013] Preferably, at least two sets of crankshafts are arranged on the rotating rod. The two sets of crankshafts are respectively arranged on both sides of the rotating rod. The ejector rods on the movable frames connected to the two sets of crankshafts alternately insert into the filter holes of the filter plate.

[0014] Preferably, a paddle is arranged on the rotating rod. A flow guiding block for guiding is arranged in the sludge suction pipe. The outer side surface of the flow guiding block is an arc surface or an inclined surface.

[0015] Preferably, the three-stage mud pump unit is at least pressure-resistant 25Bar. All parts of the mud pump of the three-stage mud pump unit should meet the strength test requirements of 37.5Bar and the airtightness test requirements of 25Bar. The three-stage mud pump unit is at least pressure-resistant 25Bar. All parts of the mud pump of the three-stage mud pump unit should meet the strength test requirements of 37.5Bar and the airtightness test requirements of 25Bar. The three-stage mud pump unit includes three mud pump seal water pumps, two of which are for work and the remaining one is for standby.

[0016] Compared with the prior art, the present invention provides a dredger relay mud discharging device, which has the following beneficial effects:

[0017] 1. The relay mud discharging device of this dredger makes full use of the traditional first-stage and second-stage mud discharging devices, excavates sufficient remaining space, adds a designed third-stage relay mud discharging device, meets the dredging needs that the traditional first-stage and second-stage mud discharging cutter suction devices are difficult to adapt to long-distance mud discharging, eliminates the need to add another traditional first-stage and second-stage mud discharging device or use a mud ship and a mud barge for high-oil-consumption and low-efficiency long-distance round-trip transportation, and greatly improves the construction efficiency.

[0018] 2. The relay mud discharging device of this dredger is provided with a stone discharging mechanism under the filter plate of the mud suction pipe, which can transfer and remove large broken stones intercepted by the filter plate, without the need to stir and break the broken stones in the mud suction pipe, avoiding the collision of the broken stones with the crushing tool and the inner wall of the pipe body in the mud suction pipe, and reducing the service life of the mud suction pipe and the crushing tool.

[0019] 3. The relay mud discharging device of this dredger is provided with two groups of movable frames, which drive the ejector rods to alternately insert into the filter holes on the filter plate, making the filter plate not easily blocked, ensuring the mud discharging and water conveyance efficiency of the mud pump, avoiding the mud pump from stopping to replace or clean the filter plate, affecting the mud discharging progress, and reducing the workload of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the internal layout structure of the main engine compartment of the present invention;

[0021] Figure 2 It is a schematic diagram of the external structure of the mud pump body of the present invention;

[0022] Figure 3 It is a schematic diagram of the external structure of the mud suction pipe of the present invention;

[0023] Figure 4 It is a schematic sectional view of the mud suction pipe of the present invention Figure 1 ;

[0024] Figure 5 It is of the present invention Figure 4 Schematic diagram of the partial enlarged structure of part A in;

[0025] Figure 6 It is a schematic sectional view of the mud suction pipe of the present invention Figure 2 ;

[0026] Figure 7 It is of the present invention Figure 6 Schematic diagram of the partial enlarged structure of part B in;

[0027] Figure 8 It is a schematic diagram of the structure of the rotating seat of the present invention.

[0028] In the figure: 1. Main engine room; 101. Frame position; 2. Paint room; 3. Underwater mud pump unit; 301. Mud pump body; 3011. Mud suction end; 3012. Mud discharge end; 4. Secondary mud pump unit; 5. Tertiary mud pump unit; 6. Mud suction pipe; 601. Filter plate; 7. Outer shell; 701. Rotating seat; 702. Material receiving tank; 703. Driving motor; 704. Fixed bevel gear; 705. Connecting plate; 8. Pushing seat; 9. Fixed rod; 901. Bi-directional reciprocating lead screw; 902. Driven bevel gear; 903. Sleeve; 904. Swing rod; 905. Rotating ring; 906. Elastic telescopic rod; 10. Feeding chute; 11. Water storage tank; 111. Filter screen; 112. Return water pipe; 12. Rotating rod; 121. Crankshaft; 122. Collar; 123. Connecting rod; 124. Movable frame; 1241. Thrust rod; 125. Paddle. Detailed implementation mode

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0030] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0031] Embodiment 1: Refer to Figure 1 , Figure 2 and Figure 4 , a relay mud discharging device for a dredger, including a main engine room 1, and further including: a frame position 101 is additionally provided on the left side of the rear side of the main engine room 1, a paint room 2 is communicated with the left side of the front side of the main engine room 1, an underwater mud pump unit 3 is arranged at the left side of the rear side of the main engine room 1, a secondary mud pump unit 4 is installed on the left side of the front side of the main engine room 1, a tertiary mud pump unit 5 is installed in the middle of the main engine room 1, a mud suction end 3011 and a mud discharge end 3012 are arranged on the mud pump body 301 of the underwater mud pump unit 3, a mud suction pipe 6 is arranged on the mud suction end 3011, a filter plate 601 for intercepting gravel is fixedly arranged in the mud suction pipe 6, and a stone discharging mechanism is arranged below the filter plate 601 of the mud suction pipe 6.

[0032] Furthermore, the three-stage mud pump unit 5 is at least pressure-resistant to 25 Bar. All parts of the mud pump of the three-stage mud pump unit 5 shall meet the requirements of the strength test at 37.5 Bar and the tightness test at 25 Bar. The three-stage mud pump unit 5 is at least pressure-resistant to 25 Bar. All parts of the mud pump of the three-stage mud pump unit 5 shall meet the requirements of the strength test at 37.5 Bar and the tightness test at 25 Bar. The three-stage mud pump unit 5 includes three mud pump seal water pumps, two of which are for operation and the remaining one is for standby.

[0033] Specifically, based on the original ship, one frame space 101 is added to the rear starboard of the engine room 1. The paint room 2 on the forward starboard of the engine room 1 is incorporated into the engine room 1. The original underwater mud pump diesel generator set is moved to the rear starboard of the engine room 1. The original second-stage mud pump (pressure-resistant above 17 Bar) is shifted to the starboard of the open deck in front of the engine room 1. At the same time, the diesel engine and gearbox of the original second-stage mud pump are shifted to the forward starboard of the engine room 1 to displace the second-stage mud pump unit 4 as a whole. Subsequently, a set of three-stage mud pump unit 5 (pressure-resistant above 25 Bar) is added at the position of the original second-stage mud pump unit 4. A set of three-stage mud pump unit 5 consists of three mud pump seal water pumps, two for use and one for standby. The head of the seal water pump is increased to 250 m to meet the requirements of the tightness test at 25 Bar. The modified three-stage dredging and suction device solves the problem of insufficient mud discharge distance, eliminates the need to add an additional traditional first-stage and second-stage mud discharge device ship or a mud transport ship and a mud barge, reduces the high fuel consumption and low efficiency of long-distance round-trip transportation, and realizes energy conservation and emission reduction.

[0034] Refer to Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 and Figure 8 As a preferred technical solution of the present invention, further, the stone discharging mechanism includes a housing 7 fixedly arranged on the suction pipe 6, a rotating seat 701 rotatably connected to the housing 7, a plurality of material receiving grooves 702 uniformly arranged in a circle on the rotating seat 701, and a driving motor 703 fixedly arranged on the housing 7 for driving the rotating seat 701 to rotate. The rotating seat 701 is rotatably connected to the suction pipe 6, and a blanking groove 10 matching with the material receiving grooves 702 is formed at the bottom of the housing 7.

[0035] Specifically, the water receives the suction force of the mud pump and carries the gravel to move in the mud extraction pipe 6. The gravel is intercepted by the filter plate 601 and falls into the receiving trough 702 of the rotating seat 701. By controlling the operation of the drive motor 703, the output shaft of the drive motor 703 drives the rotating seat 701 to rotate relative to the outer shell 7, and the rotating seat 701 drives the gravel received in the receiving trough 702 to rotate. When the receiving trough 702 coincides with the dropping trough 10, the gravel in the receiving trough 702 falls through the dropping trough 10, so that the large gravel intercepted by the filter plate 601 can be transported and removed. There is no need to stir and crush the gravel in the mud extraction pipe 6, so as to avoid the collision of the gravel with the crushing tool and the inner wall of the pipe body in the mud extraction pipe 6, thereby reducing the service life of the mud extraction pipe 6 and the crushing tool.

[0036] Reference Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As a preferred technical solution of the present invention, further, a push seat 8 is slidably connected in the receiving groove 702, and a side of the push seat 8 close to the central axis of the rotating seat 701 is set as an arc surface, and a driving part for driving the push seat 8 to move is set on the outer shell 7.

[0037] Furthermore, the driving part includes a fixed rod 9 fixed in the outer shell 7, a bidirectional reciprocating screw 901 rotatably arranged in the fixed rod 9, a driven bevel gear 902 arranged at the end of the bidirectional reciprocating screw 901, a fixed bevel gear 704 fixedly connected to the rotating seat 701 through a connecting plate 705, and a sleeve 903 threadedly connected to the two ends of the bidirectional reciprocating screw 901, each sleeve 903 is movably connected to a swing rod 904, and the two swing rods 904 are movably connected at one end away from the sleeve 903 and movably abut against the push seat 8, and the fixed rod 9 is fixed on the side of the outer shell 7 away from the driving motor 703.

[0038] Furthermore, a rotating ring 905 is rotatably connected to the outer side of the fixed rod 9 , and an elastic telescopic rod 906 is provided between the rotating ring 905 and the push seat 8 .

[0039] Specifically, when the rotating seat 701 rotates relative to the outer shell 7, the rotating seat 701 drives the fixed bevel gear 704 to rotate through the connecting plate 705, and the fixed bevel gear 704 meshes with the driven bevel gear 902 at the end of the two-way reciprocating screw rod 901 to rotate. When the two-way reciprocating screw rod 901 rotates, the two sleeves 903 connected by the outer thread move back and forth. When the two sleeves 903 approach each other, they drive the other end of the swing rod 904 to abut against the push seat 8, and the elastic telescopic rod 906 is stretched, causing the push seat 8 to slide in the receiving trough 702, thereby pushing the gravel that may be stuck in the receiving trough 702, ensuring the subsequent gravel receiving capacity of the receiving trough 702, and thus ensuring the continuous and stable operation of the stone discharge mechanism.

[0040] Refer to Figure 2 、 Figure 3 、 Figure 4 and Figure 6 , as a preferred technical solution of the present invention, further, a water storage tank 11 is provided inside the housing 7. A filter screen 111 that is movably abutted against the rotating seat 701 is provided at the opening of the water storage tank 11. A return water pipe 112 is provided between the water storage tank 11 and the sludge suction pipe 6.

[0041] Specifically, after the receiving chute 702 receives and rotates the crushed stones, some water bodies will accumulate in the receiving chute 702. When the water bodies rotate to the filter screen 111 along with the rotating seat 701, they will enter the water storage tank 11. When the sludge suction pipe 6 sucks, there will be a suction force on the return water pipe 112, and the water bodies entering the water storage tank 11 will flow back into the sludge suction pipe 6 through the return water pipe 112.

[0042] Refer to Figure 4 、 Figure 5 and Figure 6 , as a preferred technical solution of the present invention, further, a rotating rod 12 is rotatably connected inside the sludge suction pipe 6. A crankshaft 121 is provided on the rotating rod 12. A collar 122 is sleeved on the crankshaft 121. A connecting rod 123 is fixedly provided on the collar 122. One end of the connecting rod 123 away from the collar 122 is movably connected with a movable frame 124. The movable frame 124 is slidably connected to the inner wall of the sludge suction pipe 6. A plurality of ejector rods 1241 inserted into the filter holes of the filter plate 601 are provided on the movable frame 124.

[0043] Further, at least two groups of crankshafts 121 are provided on the rotating rod 12. The two groups of crankshafts 121 are respectively arranged on both sides of the rotating rod 12. The ejector rods 1241 on the movable frames 124 connected to the two groups of crankshafts 121 alternately insert into the filter holes of the filter plate 601.

[0044] Further, a paddle 125 is provided on the rotating rod 12. A flow guiding block for guiding is provided inside the sludge suction pipe 6. The outer side surface of the flow guiding block is an arc surface or an inclined surface.

[0045] Specifically, when the sludge pump works, it will generate a suction force on the sludge suction pipe 6. The suction force is guided by the flow guiding block inside the sludge suction pipe 6 to drive the paddle 125 to swing. The paddle 125 drives the rotating rod 12 to rotate. At the same time, the fluid sucked inside the sludge suction pipe 6 will also drive the paddle 125, so that the rotating rod 12 drives the crankshaft 121 to rotate. The crankshaft 121 drives the movable frame 124 to move horizontally along the inner wall of the sludge suction pipe 6 through the collar 122 and the connecting rod 123. The crankshaft 121 is arranged on both sides of the rotating rod 12, so that the movable frame 124 drives the ejector rods 1241 to alternately insert into the filter holes on the filter plate 601, making the filter plate 601 not easily blocked, ensuring the sludge discharge and water conveyance efficiency of the sludge pump, avoiding the sludge pump from stopping to replace or clean the filter plate 601, affecting the sludge discharge progress, and at the same time reducing the workload of the staff.

[0046] As described above, it is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent substitutions or changes should be covered within the protection scope of the present invention.

Claims

1. A dredger relay mud discharging device, including a main engine room (1), characterized in that, It further includes: A rib position (101) is additionally provided on the port side at the rear of the main engine room (1). A paint room (2) is communicated with the port side at the front of the main engine room (1). An underwater mud pump unit (3) is arranged at the port side at the rear of the main engine room (1). A secondary mud pump unit (4) is installed on the port side at the front of the main engine room (1). A tertiary mud pump unit (5) is installed in the middle of the main engine room (1). A mud suction end (3011) and a mud discharge end (3012) are provided on the mud pump body (301) of the underwater mud pump unit (3). A mud suction pipe (6) is provided on the mud suction end (3011). A filter plate (601) for intercepting gravel is fixedly arranged in the mud suction pipe (6). A stone discharging mechanism is arranged below the filter plate (601) in the mud suction pipe (6).

2. The dredger relay mud discharging device according to claim 1, characterized in that, The stone discharging mechanism includes a housing (7) fixedly arranged on the mud suction pipe (6), a rotating seat (701) rotatably connected to the housing (7), a plurality of material receiving grooves (702) evenly arranged in a circle on the rotating seat (701), and a driving motor (703) fixedly arranged on the housing (7) for driving the rotating seat (701) to rotate. The rotating seat (701) is rotatably connected to the mud suction pipe (6). A blanking groove (10) matched with the material receiving groove (702) is formed at the bottom of the housing (7).

3. The dredger relay sludge discharging device according to claim 2, characterized in that, A pushing seat (8) is slidably connected in the material receiving groove (702). The side of the pushing seat (8) close to the central axis of the rotating seat (701) is set as an arc surface. A driving part for driving the displacement of the pushing seat (8) is arranged on the housing (7).

4. The dredger relay mud discharging device according to claim 3, characterized in that The driving part includes a fixed rod (9) fixedly arranged in the housing (7), a bidirectional reciprocating lead screw (901) rotatably arranged in the fixed rod (9), a driven bevel gear (902) arranged at the end of the bidirectional reciprocating lead screw (901), a fixed bevel gear (704) fixedly connected to the rotating seat (701) through a connecting plate (705), and sleeves (903) threadedly connected to both ends of the bidirectional reciprocating lead screw (901). Each sleeve (903) is movably connected with a swing rod (904). The ends of the two swing rods (904) far from the sleeves (903) are movably connected and movably abutted against the pushing seat (8). The fixed rod (9) is fixedly arranged on the side of the housing (7) away from the driving motor (703).

5. The dredger relay mud discharging device according to claim 4, characterized in that, A rotating ring (905) is rotatably connected to the outside of the fixed rod (9). An elastic telescopic rod (906) is arranged between the rotating ring (905) and the pushing seat (8).

6. The dredger relay mud discharging device according to claim 5, characterized in that, A water storage tank (11) is formed in the housing (7). A filter screen (111) movably abutted against the rotating seat (701) is arranged at the opening of the water storage tank (11). A water return pipe (112) is arranged between the water storage tank (11) and the mud suction pipe (6).

7. The dredger relay sludge discharging device according to claim 6, characterized in that, A rotating rod (12) is rotatably connected inside the sludge suction pipe (6). A crankshaft (121) is arranged on the rotating rod (12). A collar (122) is sleeved on the crankshaft (121). A connecting rod (123) is fixedly arranged on the collar (122). One end of the connecting rod (123) away from the collar (122) is movably connected with a movable frame (124). The movable frame (124) is slidably connected with the inner wall of the sludge suction pipe (6). A plurality of ejector rods (1241) inserted into the filter holes of the filter plate (601) are arranged on the movable frame (124).

8. The dredger relay mud discharging device according to claim 7, characterized in that, At least two groups of crankshafts (121) are arranged on the rotating rod (12). The two groups of crankshafts (121) are respectively arranged on both sides of the rotating rod (12). The ejector rods (1241) on the movable frames (124) connected to the two groups of crankshafts (121) alternately insert into the filter holes of the filter plate (601).

9. The dredger relay mud discharging device according to claim 8, characterized in that A paddle (125) is arranged on the rotating rod (12). A flow guiding block for guiding is arranged inside the sludge suction pipe (6). The outer side surface of the flow guiding block is an arc surface or an inclined surface.

10. The dredger relay mud discharging device according to claim 2, characterized in that, The three-stage mud pump unit (5) is at least pressure-resistant 25 Bar. All parts of the mud pump of the three-stage mud pump unit (5) should meet the strength test requirements of 37.5 Bar and the tightness test requirements of 25 Bar. The three-stage mud pump unit (5) is at least pressure-resistant 25 Bar. All parts of the mud pump of the three-stage mud pump unit (5) should meet the strength test requirements of 37.5 Bar and the tightness test requirements of 25 Bar. The three-stage mud pump unit (5) includes three mud pump seal water pumps, two of which are used for work and the remaining one is for standby.

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