Mud pumping device for river dredging

Abstract

The utility model relates to the technical field of river dredging, in particular to a mud pumping device for river dredging, which comprises a mounting pipe, a pumping pipe is mounted at one end of the mounting pipe through a bolt, a retaining shell is sleeved on the outer side of the pumping pipe, and the retaining shell is fixedly connected with the pumping pipe through a bolt. Water permeable holes are formed in the bottom and the side face of the end, located on the inner side of the blocking shell, of the extraction pipe, the end, away from the extraction pipe, of the blocking shell is sleeved with a net cover in a threaded mode, a grid plate is fixedly installed on the inner side of the net cover, and the grid plate is located on one side of the end of the extraction pipe; the mud pumping device for river dredging can protect the end of the pumping pipe, prevents mud clay from blocking the pumping pipe, and is worthy of popularization.

Description

Technical Field

[0001] This utility model relates to the field of river dredging technology, and in particular to a sludge pumping device for river dredging. Background Technology

[0002] River dredging generally refers to the treatment of rivers by using equipment to agitate the silt deposited on the riverbed, turning it into turbid water that flows away with the river, thus clearing blockages. In polluted waters, large amounts of pollutants settle in the bottom sediment. Therefore, when treating polluted waters, it is essential to dredge this sediment containing high levels of pollutants. Currently available river dredging equipment, due to the accumulation of silt on the riverbed, which contains a lot of clay, easily accumulates inside the pipes during extraction, causing blockages and hindering normal extraction operations. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies where clay easily clogs the extraction pipes, and to propose a sludge pumping device for river dredging.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] Design a dredging device for river dredging, including an installation pipe, one end of which is bolted to a dredging pipe, a baffle is fitted on the outside of the dredging pipe, the baffle is fixedly connected to the dredging pipe by bolts, water-permeable holes are opened at the bottom and side of the end of the dredging pipe located inside the baffle, a mesh cover is threaded on the end of the baffle away from the dredging pipe, and a grid plate is fixedly installed on the inside of the mesh cover, the grid plate being located on one side of the end of the dredging pipe.

[0006] Preferably, a motor is fixedly installed inside the extraction tube, a rotating shaft is fixedly installed at the end of the motor, and a stirring blade is fixedly installed on the outside of the rotating shaft.

[0007] Preferably, the end of the rotating shaft extends through to the outside of the extraction tube and is fixedly installed with a mating block. A rotating seat is rotatably installed inside the mesh plate. A receiving groove is opened inside the rotating seat. The mating block mates with the receiving groove. A crushing blade is fixedly installed at the end of the rotating seat away from the mating block.

[0008] Preferably, the central axis of the rotating seat coincides with the central axis of the mating block, and the central axis of the mating block coincides with the central axis of the rotating shaft.

[0009] Preferably, both the mating block and the receiving groove have square cross-sections.

[0010] Preferably, a scraper is fixedly installed on one side of the rotating seat, and the scraper is located on the side of the grid plate away from the baffle.

[0011] Preferably, a sealing ring is fixedly installed on the outer surface of the extraction tube, and the end of the baffle sleeve fitted on the outer side of the extraction tube abuts against the outer side of the sealing ring.

[0012] The present invention proposes a sludge pumping device for river dredging, which has the following advantages: During operation, the sludge pumping device can filter the pumped sludge through the grid plate, blocking large clumps of sludge and clay with high viscosity. The end of the pumping pipe has a special hollow structure formed by uniformly arranged permeable holes, which can greatly break up small clumps of sludge and clay inside the sewage. By driving the rotating shaft to rotate, the stirring plate can be driven to rotate. The stirring plate can break up the small clumps of sludge and clay that enter the pumping pipe, further reducing the possibility of blockage inside the pumping pipe. Attached Figure Description

[0013] Figure 1 This is a cross-sectional structural schematic diagram of a dredging device for river dredging proposed in this utility model.

[0014] Figure 2 This is a three-dimensional structural diagram of the extraction pipe in a dredging device for river dredging proposed in this utility model.

[0015] Figure 3 This is a side view of the rotating shaft, stirring blade, rotating seat, crushing blade, and scraper frame in a dredging device for river dredging proposed in this utility model.

[0016] Figure 4 This is a top view of the shield of a dredging device for river dredging proposed in this utility model.

[0017] In the diagram: 1. Installation pipe; 2. Extraction pipe; 3. Water permeable hole; 4. Motor; 5. Rotating shaft; 6. Stirring blade; 7. Baffle; 8. Mesh cover; 9. Rotating seat; 91. Receiving tank; 10. Matching block; 11. Mesh plate; 12. Crushing blade; 13. Sludge scraper; 14. Sealing ring. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0019] Example 1: Refer to Figure 1-4A sludge pumping device for river dredging includes an installation pipe 1. One end of the installation pipe 1 is bolted to a suction pipe 2, and the other end of the installation pipe 1 is connected to a pump body via a water pipe. During sludge pumping, the pump body can pump sludge outwards through the suction pipe 2. A baffle 7 is fitted over the outside of the suction pipe 2 to block external sludge. The baffle 7 is fixedly connected to the suction pipe 2 by bolts, and the baffle 7 and the suction pipe 2 are easily disassembled and reassembled, facilitating cleaning of both the suction pipe 2 and the inside of the baffle 7.

[0020] The bottom and side of the end of the extraction pipe 2 located inside the baffle 7 are provided with water permeable holes 3. The water permeable holes 3 can allow sewage and silt to pass through. If the sewage contains gravel or sticky clay, it will not easily pass through the water permeable holes 3. The water permeable holes 3 can act as a barrier to prevent gravel or clay from entering the extraction pipe 2 and avoid clogging inside the extraction pipe 2.

[0021] A mesh cover 8 is threaded onto the end of the baffle 7 furthest from the extraction pipe 2. The mesh cover 8 is entirely made of metal mesh. The open end of the mesh cover 8 can accommodate relatively viscous sludge or even clay entering the mesh cover 8, while the mesh openings on the outside of the mesh cover 8 can only allow sewage and less viscous sludge to pass through. A grid plate 11 is fixedly installed on the inner side of the mesh cover 8. The grid plate 11 is located on one side of the end of the extraction pipe 2. When sewage, sludge, or even clay entering the mesh cover 8 is subjected to suction force, it will move towards the grid plate 11. The grid plate 11 can allow sewage, less viscous sludge, and small clay particles to pass through, while the remaining viscous sludge and large clay particles will be blocked on the outside of the grid plate 11, preventing them from entering the extraction pipe 2 and causing blockage.

[0022] A motor 4 is fixedly installed inside the extraction tube 2, and a rotating shaft 5 is fixedly installed at the end of the motor 4. The motor 4 can drive the rotating shaft 5 to rotate. A stirring plate 6 is fixedly installed on the outside of the rotating shaft 5. The rotation of the rotating shaft 5 can drive the stirring plate 6 to rotate. The stirring plate 6 can stir the sludge drawn into the extraction tube 2, which can break up the sludge and clay, making it easier to extract and further reducing the possibility of blockage inside the extraction tube 2.

[0023] A sealing ring 14 is fixedly installed on the outer surface of the extraction tube 2. The end of the baffle 7, which is sleeved on the outer side of the extraction tube 2, abuts against the outer side of the sealing ring 14. The sealing ring 14 is made of rubber. The sealing ring 14 can improve the sealing between the extraction tube 2 and the baffle 7.

[0024] Working principle: During operation, the sludge pumping device used for river dredging uses a pump to drive the extraction pipe 2 to extract sludge. When the extraction pipe 2 extracts sludge, it draws sludge through the opening end of the mesh cover 8. The mesh plate 11 filters the extracted sludge, blocking large clumps of sludge and clay with high viscosity. The sludge that passes through the mesh plate 11 is drawn into the extraction pipe 2 and can be filtered again through the water permeable holes 3. The end of the extraction pipe 2 has a special hollow structure formed by the evenly arranged water permeable holes 3. When the sewage is extracted, the small clumps of sludge and clay inside the sewage can be largely broken up when they hit the hollow structure of the extraction pipe 2. At the same time, the motor 4 is started to drive the rotating shaft 5 to rotate. The rotation of the rotating shaft 5 drives the stirring plate 6 to rotate. The stirring plate 6 can break up the small clumps of sludge and clay that enter the extraction pipe 2, further reducing the possibility of blockage inside the extraction pipe 2.

[0025] Example 2: In Example 1, the relatively viscous sludge and large pieces of clay blocked by the mesh plate 11 remain inside the mesh cover 8. Long-term accumulation affects the flowability inside the mesh cover 8, impacting the sludge extraction by the extraction dryer 2. Therefore, this example is proposed. (Refer to...) Figure 1 and Figure 3-4 In another preferred embodiment of this utility model, based on embodiment 1, the end of the rotating shaft 5 extends through to the outside of the extraction tube 2 and is fixedly installed with a mating block 10. The central axis of the mating block 10 coincides with the central axis of the rotating shaft 5. When the rotating shaft 5 rotates, it also drives the mating block 10 to rotate. A rotating seat 9 is rotatably installed inside the mesh plate 11. The central axis of the rotating seat 9 coincides with the central axis of the mating block 10. A receiving groove 91 is opened inside the rotating seat 9. The mating block 10 mates with the receiving groove 91. Both the cross-section of the receiving tank 91 and the receiving tank 91 are square. When the mating block 10 rotates, it will also drive the rotating seat 9 to rotate. The end of the rotating seat 9 away from the mating block 10 is fixedly installed with a crushing blade 12. When the rotating seat 9 rotates, it will also drive the crushing blade 12 to rotate. The crushing blade 12 can crush the sludge and clay blocked inside the mesh cover 8. The crushed sludge and clay can be brought closer to the mesh plate 11 along with the extracted sludge. In this way, the crushed sludge and clay can pass through the mesh plate 11, avoiding the sludge and clay from being blocked inside the mesh cover 8.

[0026] A scraper 13 is fixedly installed on one side of the rotating seat 9. The scraper 13 is located on the side of the grid plate 11 away from the baffle 7. The scraper 13 is in contact with the grid plate 11 and the inner wall of the mesh cover 8. The scraper 13 can scrape off the mud adhering to the surface of the grid plate 11 and the inner wall of the mesh cover 8, so as to prevent the mud from clogging the internal aperture of the grid plate 11 and the mesh cover 8.

[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A suction dredge for river channel dredging, comprising a mounting tube (1), characterized in that, One end of the installation tube (1) is fitted with an extraction tube (2) by bolts. A baffle (7) is fitted on the outside of the extraction tube (2). The baffle (7) is fixedly connected to the extraction tube (2) by bolts. Water-permeable holes (3) are opened at the bottom and side of the end of the extraction tube (2) located inside the baffle (7). A mesh cover (8) is threaded on the end of the baffle (7) away from the extraction tube (2). A mesh plate (11) is fixedly installed on the inside of the mesh cover (8). The mesh plate (11) is located on one side of the end of the extraction tube (2).

2. The suction dredger for river channel dredging according to claim 1, characterized in that, A motor (4) is fixedly installed inside the extraction tube (2), a rotating shaft (5) is fixedly installed at the end of the motor (4), and a stirring plate (6) is fixedly installed on the outside of the rotating shaft (5).

3. The suction dredger for river channel dredging according to claim 2, characterized in that, The end of the rotating shaft (5) extends through to the outside of the extraction tube (2) and is fixedly installed with a mating block (10). A rotating seat (9) is rotatably installed inside the mesh plate (11). A receiving groove (91) is opened inside the rotating seat (9). The mating block (10) is mated with the receiving groove (91). A crushing blade (12) is fixedly installed at the end of the rotating seat (9) away from the mating block (10).

4. The suction dredger for river channel dredging according to claim 3, characterized in that, The central axis of the rotating seat (9) coincides with the central axis of the mating block (10), and the central axis of the mating block (10) coincides with the central axis of the rotating shaft (5).

5. The dredging device for river dredging according to claim 4, characterized in that, Both the mating block (10) and the receiving groove (91) have square cross-sections.

6. The suction dredger for river channel dredging according to claim 5, characterized in that, A scraper (13) is fixedly installed on one side of the rotating seat (9), and the scraper (13) is located on the side of the grid plate (11) away from the baffle (7).

7. The suction dredger for river channel dredging according to claim 1, characterized in that, A sealing ring (14) is fixedly installed on the outer surface of the extraction tube (2), and the end of the baffle (7) sleeved on the outer side of the extraction tube (2) abuts against the outer side of the sealing ring (14).

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