A water conservancy project dredging machine

Abstract

The utility model belongs to the field of hydraulic engineering, concretely relates to a hydraulic engineering dredging machine, including dredging pump, drive mechanism includes the drive motor of setting at the top of dredging pump, the output of drive motor is installed with the penetration of the lower part of dredging pump's rotating shaft, the outside of rotating shaft is equipped with impeller spare, dredging mechanism includes the dredging end seat of setting at the lower part of dredging pump, the bottom of dredging end seat is installed with the support for supporting, and the outer wall is set up with a plurality of through silt hole, drive motor drives rotating shaft and impeller spare synchronous rotation, forms the negative pressure below dredging end seat, the silt enters the dredging chamber through the silt hole of dredging end seat side wall, is inhaled into the inner chamber of dredging pump through the through -hole of bottom silt board, in the process of dredging, water supply device continues to supply water, and the water flow is injected to the area of impeller spare by sprayer, can smash big silt and prevent the impeller adhesion, and flush can reduce silt viscosity and facilitate the absorption cleaning of silt.

Description

Technical Field

[0001] This utility model relates to the field of water conservancy engineering, specifically to a dredging machine for water conservancy projects. Background Technology

[0002] River siltation has increasingly affected the normal functioning of various river systems, including flood control, drainage, irrigation, water supply, and navigation. To restore the normal function of rivers and promote rapid and sustainable economic and social development, river dredging and desilting projects are being carried out. These projects aim to deepen and widen rivers, clarify the water, and significantly improve the living conditions and production environment of the local population, achieving the goal of "clear water, unobstructed flow, green banks, and beautiful scenery."

[0003] When carrying out water conservancy dredging, the dredging pump used is obstructed when dealing with environments with high viscosity and low water content of silt. The silt transport is blocked, the dredging process is intermittent, and the dredging pump may become clogged due to insufficient water flow. This leads to frequent shutdowns for maintenance during the dredging process, which affects the dredging efficiency. Utility Model Content

[0004] (a) Purpose of the utility model

[0005] To address the technical problems existing in the background art, this utility model proposes a dredging machine for water conservancy projects, which features convenient dredging and anti-clogging dredging pump.

[0006] (II) Technical Solution

[0007] To solve the above-mentioned technical problems, this utility model provides a dredging machine for water conservancy projects, including a dredging pump, and a drive mechanism including a drive motor installed on the top of the dredging pump. The output end of the drive motor is equipped with a rotating shaft that passes through the lower part of the dredging pump, and an impeller is sleeved on the outside of the rotating shaft.

[0008] The dredging mechanism includes a suction end seat located at the bottom of the dredging pump. The bottom of the suction end seat is equipped with a support bracket, and the outer wall is provided with several through sludge holes. The bottom of the suction end seat is formed with a sludge plate with through holes.

[0009] The spraying mechanism includes a support located below the suction end seat. A water supply device is provided on one side of the support. The water supply device is connected to several spraying end seats provided on the support via pipelines. Sprayers with spray holes facing the impeller are installed on the spraying end seats.

[0010] Preferably, the impeller rotates synchronously with the shaft.

[0011] Preferably, the bracket and the support are attached to each other, a connector is provided at the junction of the two, and a sludge removal chamber is surrounded between the two.

[0012] Preferably, the output end of the water supply device is provided with a water supply pipe that penetrates into the inner cavity of the support, and an annular ring pipe is installed on the water supply pipe. The annular ring pipe is connected to each of the spray end seats through a protruding branch pipe.

[0013] Preferably, the sludge drawn into the sludge pump cavity by the sludge plate is discharged externally through the sludge discharge end seat.

[0014] Preferably, the drive motor is fitted with a sealing structure, and a handle for suspension is installed above the drive motor.

[0015] The above-mentioned technical solution of this utility model has the following beneficial technical effects: the drive motor drives the rotating shaft and impeller to rotate synchronously, forming a negative pressure below the suction end seat. The sludge enters the sludge cleaning chamber through the sludge hole on the side wall of the suction end seat, and is sucked into the inner cavity of the sludge cleaning pump through the through hole of the bottom sludge plate. During the sludge cleaning process, the water supply device continuously supplies water, and the sprayer sprays water flow towards the impeller area, which can crush large pieces of sludge and prevent the impeller from sticking. At the same time, the flushing can reduce the viscosity of the sludge and facilitate the absorption and cleaning of the sludge. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a cross-sectional structural diagram of the dredging mechanism of this utility model;

[0018] Figure 3 This is a schematic diagram of the spraying mechanism of this utility model.

[0019] Figure label:

[0020] 1. Dredging pump; 21. Drive motor; 22. Shaft; 23. Impeller; 31. Suction end seat; 32. Support; 33. Sludge hole; 34. Sludge plate; 4. Discharge end seat; 51. Support; 52. Water supply device; 53. Water supply pipe; 54. Ring pipe; 55. Branch pipe; 56. Spraying end seat; 57. Sprayer; 6. Handle. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0022] like Figure 1-3As shown, the present invention proposes a dredging machine for water conservancy projects, including a dredging pump 1, and a drive mechanism including a drive motor 21 set on the top of the dredging pump 1. The output end of the drive motor 21 is equipped with a rotating shaft 22 that passes through the lower part of the dredging pump 1, and an impeller 23 is sleeved on the outside of the rotating shaft 22.

[0023] When the drive mechanism is working, the drive motor 21 drives the impeller 23 connected to the rotating shaft 22 to rotate synchronously and generate suction to suck the surrounding silt into the sludge pump 1 from the sludge plate 34.

[0024] The dredging mechanism includes a suction end seat 31 located at the bottom of the dredging pump 1. A support bracket 32 ​​is installed at the bottom of the suction end seat 31 for support, and several through sludge holes 33 are opened on the outer wall. A sludge plate 34 with through holes is formed at the bottom of the suction end seat 31.

[0025] The spraying mechanism includes a support 51 located below the suction end seat 31. A water supply device 52 is provided on one side of the support 51. The water supply device 52 is connected to several spraying end seats 56 provided on the support 51 through a pipeline. Sprayers 57 with spray holes facing the impeller component 23 are installed on the spraying end seats 56.

[0026] It should be noted that the bracket 32 ​​and the support 51 are attached to each other, and a sludge removal chamber is surrounded between them. The attachment of the bracket 32 ​​and the support 51 forms a closed sludge removal chamber, which improves the sludge suction efficiency.

[0027] The purpose of the connector at the junction of the two is to prevent the bracket 32 ​​from separating from the support 51 and to ensure the stability of the connection between the two.

[0028] In this embodiment, the drive motor 21 drives the rotating shaft 22 and the impeller 23 to rotate synchronously, forming a negative pressure below the suction end seat 31. The sludge enters the cleaning chamber through the sludge hole 33 on the side wall of the suction end seat 31 and is sucked into the inner cavity of the cleaning pump 1 through the through hole of the bottom sludge plate 34. During the cleaning process, the water supply device 52 continuously supplies water, and the sprayer 57 sprays water into the impeller 23 area, which can crush large pieces of sludge and prevent the impeller from sticking. At the same time, the flushing can reduce the viscosity of the sludge and facilitate the absorption and cleaning of the sludge.

[0029] It is understandable that the sludge sucked into the inner cavity of the sludge pump 1 by the sludge plate 34 is discharged through the sludge discharge end seat 4, and the sludge pressurized by the sludge pump 1 is discharged through the sludge discharge end seat to the external collection point.

[0030] like Figure 3 As shown, the output end of the water supply device 52 is provided with a water supply pipe 53 that penetrates into the inner cavity of the support 51. An annular ring pipe 54 is installed on the water supply pipe 53. The ring pipe 54 is connected to each spray end seat 56 through a protruding branch pipe 55.

[0031] In one embodiment, the water supply device 52 delivers spray water to the ring pipe 54 through the water supply pipe 53. The ring pipe 54 supplies water to the spray end seats 56 through the branch pipe 55. The combination of the ring pipe 54 and the branch pipe 55 achieves uniform water supply to multiple spray end seats 56, ensuring full coverage spraying in the closed sludge chamber. In environments with low water content, the sludge viscosity is too high. When sludge dredging is obstructed or water supply is interrupted due to lack of mud-water mixing, the sludge pump 1 may have the problem of sludge blocking the transmission channel in the inner cavity. Continuous water spraying can prevent the blockage of its inner cavity transmission channel and ensure the smooth transmission of the sludge pump 1 before and after shutdown.

[0032] To prevent water leakage when the drive motor 21 is used in a water-containing environment, a sealing structure is further provided on the outside of the drive motor 21, and a handle 6 for suspension is installed on the top of the drive motor 21. The purpose of the handle 6 is to assist in the suspension of the sludge pump 1.

[0033] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within its protection scope. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A dredging machine for water conservancy projects, characterized in that, The dredging pump (1) is included, and the drive mechanism includes a drive motor (21) installed on the top of the dredging pump (1). The output end of the drive motor (21) is equipped with a rotating shaft (22) that passes through the lower part of the dredging pump (1). An impeller (23) is sleeved on the outside of the rotating shaft (22). The dredging mechanism includes a suction end seat (31) located at the bottom of the dredging pump (1). The bottom of the suction end seat (31) is equipped with a support bracket (32) for support, and the outer wall is provided with several through silt holes (33). The bottom of the suction end seat (31) is formed with a silt plate (34) with through holes. The spraying mechanism includes a support (51) located below the suction end seat (31), a water supply device (52) is provided on one side of the support (51), the water supply device (52) is connected to a plurality of spraying end seats (56) provided on the support (51) through a pipeline, and a sprayer (57) with spray holes facing the impeller component (23) is installed on the spraying end seat (56).

2. The dredging machine for water conservancy projects according to claim 1, characterized in that, The impeller (23) rotates synchronously with the shaft (22).

3. The dredging machine for water conservancy projects according to claim 1, characterized in that, The bracket (32) and the support (51) are attached to each other, and a connector is provided at the junction of the two, and a sludge removal chamber is surrounded between them.

4. A dredging machine for water conservancy projects according to claim 1, characterized in that, The output end of the water supply device (52) is provided with a water supply pipe (53) that penetrates into the inner cavity of the support (51). An annular ring pipe (54) is installed on the water supply pipe (53). The ring pipe (54) is connected to each of the spray end seats (56) through a protruding branch pipe (55).

5. A dredging machine for water conservancy projects according to claim 1, characterized in that, The sludge drawn into the sludge pump (1) by the sludge plate (34) is discharged through the sludge discharge end seat (4).

6. A dredging machine for water conservancy projects according to claim 1, characterized in that, The drive motor (21) is fitted with a sealing structure, and a handle (6) for suspension is installed above the drive motor (21).

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