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Combined river dredging device

A dredging device and combined technology, used in construction, mechanically driven excavators/dredgers, earth movers/shovels, etc. The effect of reducing resistance loss, improving efficiency and saving energy consumption

Active Publication Date: 2021-12-14
ZHEJIANG OCEAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Conventional dredging methods include dry dredging, semi-dry dredging and wet mechanical dredging. Among them, dry dredging and semi-dry dredging need to adopt the method of cofferdam drainage. The problems of this type of method are: It will lead to partial cut-off of the river, so it is suitable for construction in the rainy season, and it is not suitable for construction in rivers that are not suitable for cut-off. In addition, there are certain requirements for the operating space on both sides of the river.
Jet dredging uses high-speed jets to scour the river bed, and uses the water flow of the river to transport the sediment washed up by the jets to the downstream to achieve the purpose of dredging. Since jet dredging will have a great impact on the environment, this dredging method is greatly affected. limits

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Embodiment 1: as Figure 1-7 As shown, a combined river channel dredging device includes a dredge pipe 10 . The suction pipe 10 is a double-layer pipeline, which is composed of an outer pipe 11 and an inner pipe 12; a sealed air cavity is formed between the outer pipe 11 and the inner pipe 12; an air inlet 111 is arranged on the outer pipe 11, and the air inlet 111 is connected There is an air compressor 13, and the air compressor 13 can inflate the sealed air cavity through the air inlet 111; the inner pipe 12 is provided with a one-way valve 14, the number of the one-way valve 14 is at least one, and the inner space of the inner pipe 12 The one-way valve 14 communicates with the sealed air cavity, and the air outlet of the one-way valve 14 is arranged inside the inner tube 12; the outer wall of the inner tube 12 is fixedly connected with a wind vibration unit 20, and the number of the wind vibration unit 20 is at least one .

[0044] After the dredging operation sta...

Embodiment 2

[0065] Embodiment 2: According to Figure 8 , Figure 9 As shown, based on Embodiment 1, the wind vibration element can also adopt the following structure. The wind vibration part 22 includes a first sleeve 221 , and a support column 223 is arranged on the sleeve 221 , and the wind vibration plate 222 is suspended in the sealed air cavity through the support column 223 .

[0066] Under this structure, the vibration of the wind vibration plate 222 is mainly caused by two reasons. One is that the air flow flowing through the wind vibration plate 222 is separated on the wind vibration plate 222, which will continuously generate eddy currents on the wind vibration plate 22. Constantly leaving from the wind vibration plate 222 will cause the change of the force on the wind vibration plate, and the periodic change of this force will cause the wind vibration plate to vibrate; During the airflow, affected by the turbulent flow with different directions and speeds in the irregular ai...

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Abstract

The invention discloses a combined river channel dredging device, which comprises a dredging pipe. The suction pipe is a double-layer pipe, which is composed of an outer pipe and an inner pipe; there is a sealed air cavity between the outer pipe and the inner pipe; an air inlet is arranged on the outer pipe, and an air compressor is connected to the air inlet, and the air compressor can Inflate air into the sealed air chamber through the air inlet; there is a one-way valve on the inner pipe, and the number of the one-way valve is at least one, and the inner space of the inner pipe is connected with the sealed air chamber through the one-way valve, and the outlet of the one-way valve The air port is arranged inside the inner tube; the outer wall of the inner tube is fixedly connected with a wind vibration unit, and the number of the wind vibration unit is at least one. The invention has the technical effects of reducing the resistance in the dredge pipe, thereby improving the mud conveying efficiency, saving energy consumption, and avoiding the blockage of the suction port of the dredge pipe and pipeline blockage.

Description

technical field [0001] The invention relates to the technical field of river channel engineering cleaning, in particular to a combined river channel dredging device. Background technique [0002] The siltation phenomenon of small and medium-sized rivers in my country is relatively common, and the original ability of rivers to regulate and store floods and prevent and mitigate disasters has been weakened. In recent years, the state has strengthened the management of small and medium-sized rivers and rural rivers, and dredging projects have been widely implemented as the main measure. Conventional dredging methods include dry dredging, semi-dry dredging and wet mechanical dredging. Among them, dry dredging and semi-dry dredging need to adopt the method of cofferdam drainage. The problems of this type of method are: It will lead to partial cut-off of the river, so it is suitable for construction in the rainy season, and it is not suitable for construction in rivers that are no...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02F3/88E02F3/92E02F5/28
CPCE02F3/88E02F3/92E02F5/28
Inventor 杨恩尚刘琪杨亚菲黄鹏
Owner ZHEJIANG OCEAN UNIV