Sludge conveying assembly for river, lake and reservoir bottom mud cutter suction dredger operation on water

Abstract

The utility model discloses a river, lake and reservoir sediment cutter suction dredger sludge overwater operation sludge conveying assembly, which belongs to the field of river dredging and dredging, and comprises a sludge conveying pipe, the sludge conveying pipe is arranged between a cutter suction dredger and a sludge quenching and tempering treatment system, a sludge outlet tee joint is arranged at the connecting end of the sludge conveying pipe and the cutter suction dredger, and the sludge outlet tee joint is connected with the cutter suction dredger. A mud inlet tee joint is arranged at the connecting end of the mud conveying pipe and the mud quenching and tempering treatment system; a bypass of the mud outlet tee joint is set as a first-stage drainage end, and a first-stage drainage valve is arranged at the first-stage drainage end; a bypass of the sludge inlet tee joint is arranged as a secondary drainage end, and a secondary drainage valve is arranged at the secondary drainage end; according to the conveying assembly, through the design of the mud outlet tee joint and the mud inlet tee joint, low-concentration mud can be discharged according to the mud concentration in the mud conveying process. Especially, due to the arrangement of the first-stage drainage valve and the second-stage drainage valve, the two ends of the mud conveying pipe can be used for discharging, and the mud conveying concentration is effectively guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of river dredging, and particularly relates to a sludge water operation sludge conveying assembly for a bottom mud cutter suction dredger in rivers, lakes and reservoirs. Background Technique

[0002] In the bottom mud cleaning and treatment projects of vast waters such as rivers, lakes and reservoirs, cutter suction dredgers, as a kind of efficient and flexible construction equipment, have become indispensable dredging tools. With its powerful cutter suction system, the cutter suction dredger can reach deep into the water bottom, fully mix the deposited bottom mud with water to form slurry, and through an efficient conveying system, continuously convey the slurry to the conditioning treatment system on the shore, laying a solid foundation for subsequent slurry dehydration, solidification and resource utilization.

[0003] However, in the actual operation process, the operation state of the cutter suction dredger is not always continuously stable. Especially during the initial startup stage, anchor inversion and displacement, and daily maintenance, the conveying pump often needs to stop working temporarily. This process of suspension and restart often brings a technical problem: that is, when the conveying pump is restarted again, due to the mixing of the residual slurry in the pipeline and the newly excavated slurry, the mud concentration of the initially conveyed slurry is significantly reduced, and the water content increases greatly.

[0004] When this low-concentration and high-water-content mixed slurry is directly conveyed to the conditioning treatment system, it will affect the subsequent slurry treatment process. In particular, during the conditioning treatment stage, it is usually necessary to add an appropriate amount of flocculant to the slurry to promote the rapid aggregation of tiny particles in the slurry into larger flocs, which is convenient for subsequent dehydration treatment. However, due to the high water content of the initial slurry, the concentration of the added flocculant will be extremely diluted, affecting the flocculation effect, and thus affecting the dehydration efficiency and mud cake quality of the slurry.

[0005] At present, although the industry has taken various measures to alleviate this problem, such as adjusting the flocculant dosing concentration and optimizing the conveying pipeline design, the input and the effect are not proportional, and it is difficult to fundamentally solve the adverse impact of the initial slurry concentration fluctuation on the subsequent treatment process.

[0006] In view of this, the utility model effectively solves the influence of the slurry concentration fluctuation on the conditioning treatment effect during the initial startup or restart after suspension by improving the slurry conveying system of the cutter suction dredger, ensuring the continuous and efficient operation of the bottom mud cleaning and treatment project. Content of the Utility Model

[0007] Aiming at the problems existing in the prior art, the utility model provides a sludge water operation sludge conveying assembly for a bottom mud cutter suction dredger in rivers, lakes and reservoirs.

[0008] The present utility model is implemented as follows. A sludge water operation sludge conveying assembly for a river, lake or reservoir bottom mud cutter suction dredger includes a mud conveying pipe, which is arranged between the cutter suction dredger and the mud conditioning treatment system. A mud outlet tee is provided at the connection end of the mud conveying pipe and the cutter suction dredger, and a mud inlet tee is provided at the connection end of the mud conveying pipe and the mud conditioning treatment system.

[0009] The bypass of the mud outlet tee is set as a primary drainage end, and a primary drainage valve is provided on the primary drainage end.

[0010] The bypass of the mud inlet tee is set as a secondary drainage end, and a secondary drainage valve is provided on the secondary drainage end.

[0011] Furthermore, both the secondary drainage valve and the primary drainage valve are set as electric valves and are electrically connected to a control end to achieve independent control of the secondary drainage valve and the primary drainage valve.

[0012] Furthermore, several floating cylinders are provided on the mud conveying pipe near the cutter suction dredger section. The floating cylinders are fixed to the lower side of the mud conveying pipe and support the mud conveying pipe above the water surface.

[0013] Furthermore, several sinking cylinders are provided on the mud conveying pipe near the mud conditioning treatment system section. They are fixed to the lower side of the mud conveying pipe to make the mud conveying pipe suspended under the water surface.

[0014] Furthermore, sinking cylinders are provided in the middle section of the mud conveying pipe to keep the mud conveying pipe in a sunken state in the water.

[0015] The advantages and technical effects of the present utility model are as follows:

[0016] Through the design of the mud outlet tee and the mud inlet tee, this conveying assembly enables the discharge of low-concentration mud according to the mud concentration during the mud conveying process. Especially the setting of the primary drainage valve and the secondary drainage valve allows both ends of the mud conveying pipe to discharge, effectively ensuring the concentration of mud conveying.

[0017] In addition, by setting floating cylinders and sinking cylinders at different positions of the mud conveying pipe, the mud conveying pipe can be partially floating on the water surface and partially suspended in the water. This design not only reduces the impact of water flow on the mud conveying pipe but also increases its ability to adapt to water waves and currents, thereby reducing the impact resistance and extending the service life of the mud conveying pipe. Description of the Drawings

[0018] Figure 1 It is the overall structural schematic diagram provided by the embodiment of the present utility model.

[0019] In the figure: 1. Cutter suction dredger; 2. Sludge pipeline; 3. Buoy; 4. Sinking cylinder; 5. Inlet mud three-way joint; 6. Outlet mud three-way joint; 7. Secondary drainage end; 8. Secondary drainage valve; 9. Mud conditioning treatment system; 10. Primary drainage end; 11. Primary drainage valve. Specific implementation manner

[0020] In order to make the purpose, technical solution and advantages of the present utility model clearer, the present utility model will be further described in detail below in conjunction with embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0021] Refer to Figure 1 , a sludge water operation and sludge transportation assembly for a cutter suction dredger for river, lake and reservoir bottom mud, including a sludge pipeline 2, the sludge pipeline 2 is arranged between the cutter suction dredger 1 and the mud conditioning treatment system 9, and transports the mud sucked by the cutter suction dredger 1 to the mud conditioning treatment system 9.

[0022] As an aspect of the embodiment of the present utility model, an outlet mud three-way joint 6 is connected to the connection end of the sludge pipeline 2 and the cutter suction dredger 1, the bypass of the outlet mud three-way joint 6 is set as a primary drainage end 10, and a primary drainage valve 11 is arranged on the primary drainage end 10; the primary drainage valve 11 is set as an electric valve and is electrically connected to the control end.

[0023] When the cutter suction dredger 1 starts to operate, the water content of the sucked mud is relatively high, which is not conducive to subsequent operations such as flocculation sedimentation and drainage to form mud cakes; when it is necessary to discharge the low-concentration mud at the beginning of the operation of the cutter suction dredger 1, the primary drainage valve 11 can be remotely controlled to open.

[0024] An inlet mud three-way joint 5 is connected to the connection end of the sludge pipeline 2 and the mud conditioning treatment system 9. To meet the needs of water operation, the inlet mud three-way joint 5 is connected to a rotary joint, and the rotary joint is connected to the inlet pipe of the mud conditioning treatment system, so that it can withstand loads such as pressure from fluid transmission, rotational torque, and wind and wave impacts at sea, and ensure the normal operation of the sludge pipeline 2; the bypass of the inlet mud three-way joint 5 is set as a secondary drainage end 7, and a secondary drainage valve 8 is arranged on the secondary drainage end 7; the secondary drainage valve 8 is set as an electric valve and is electrically connected to the control end.

[0025] The secondary drainage end 7 is used to discharge the low-concentration mud in the sludge pipeline 2; when it is necessary to discharge the low-concentration mud, the secondary drainage valve 8 can be remotely controlled to open.

[0026] As an aspect of the embodiment of the present utility model, three to five buoys 3 are arranged near the cutter suction dredger 1 end of the sludge pipeline 2, the buoys 3 are sleeved and fixed on the lower side of the sludge pipeline 2, and one end of the sludge pipeline 2 is supported above the water surface.

[0027] One to three floating cylinders 3 are provided at the end of the mud conveying pipe 2 close to the mud conditioning treatment system 9. The floating cylinders 3 are sleeved and fixed on the lower side of the mud conveying pipe 2, and the other end of the mud conveying pipe 2 is supported and floated on the water surface.

[0028] Several sinking cylinders 4 are provided in the middle section of the mud conveying pipe 2. The sinking cylinders 4 are fixed on the lower side of the mud conveying pipe 2 to keep the mud conveying pipe 2 in a state of sinking under the water surface; the number of the sinking cylinders 4 is determined according to the length of the mud conveying pipe 2.

[0029] The arrangement that both ends of the mud conveying pipe 2 float on the water surface and the middle part sinks in the water is beneficial to the mud conveying pipe 2 to conform to the impact of the waves and currents in the water, reduce the impact resistance, increase the service life of the mud conveying pipe 2, and reduce the impact on the navigation of the waterway.

[0030] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A sludge conveying assembly for the water operation of the sludge of a cutter suction dredger for river, lake and reservoir bottoms, comprising a sludge conveying pipe (2), the sludge conveying pipe (2) is arranged between the cutter suction dredger (1) and the slurry conditioning treatment system (9), and is characterized in that: A mud outlet tee (6) is arranged at the connection end of the sludge conveying pipe (2) and the cutter suction dredger (1), and a mud inlet tee (5) is arranged at the connection end of the sludge conveying pipe (2) and the slurry conditioning treatment system (9); The bypass of the mud outlet tee (6) is set as a primary drainage end (10), and a primary drainage valve (11) is arranged on the primary drainage end (10); The bypass of the mud inlet tee (5) is set as a secondary drainage end (7), and a secondary drainage valve (8) is arranged on the secondary drainage end (7).

2. The sludge conveying assembly for the water operation of the sludge of a cutter suction dredger for river, lake and reservoir bottoms according to claim 1, characterized in that: Both the secondary drainage valve (8) and the primary drainage valve (11) are set as electric valves and are electrically connected to a control end to realize the independent control of the secondary drainage valve (8) and the primary drainage valve (11).

3. The sludge conveying assembly for the water operation of the sludge of a cutter suction dredger for river, lake and reservoir bottoms according to claim 1, characterized in that: Three to five floating cylinders (3) are arranged at the end of the sludge conveying pipe (2) close to the cutter suction dredger (1), the floating cylinders (3) are fixed to the lower side of the sludge conveying pipe (2), and the sludge conveying pipe (2) is supported and floated on the water surface.

4. The sludge conveying assembly for the water operation of the sludge of a cutter suction dredger for river, lake and reservoir bottoms according to claim 1, characterized in that: One to three floating cylinders (3) are arranged at the end of the sludge conveying pipe (2) close to the slurry conditioning treatment system (9), the floating cylinders (3) are fixed to the lower side of the sludge conveying pipe (2), and the sludge conveying pipe (2) is supported and floated on the water surface.

5. The sludge conveying assembly for the water operation of the sludge of a cutter suction dredger for river, lake and reservoir bottoms according to claim 1, characterized in that: A sinking cylinder (4) is arranged in the middle section of the sludge conveying pipe (2), and the sinking cylinder (4) keeps the sludge conveying pipe (2) in a state of sinking in water.

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