A water conservancy engineering device for river channel dredging

Abstract

The invention relates to a hydraulic engineering apparatus used for river channel desilting. The hydraulic engineering apparatus comprises a crushing chamber, a stone-removal device, a transmission chamber, a centrifugal separation chamber, a first mixing chamber, a first filtering chamber, a second mixing chamber and a second filtering chamber. Stones in the silt are easily removed through the arranging of the stone-removal device which is of the special structure and matched with the crushing chamber. Thus, through arranging recovery treatment of the water used for desilting, environmental harmlessness during desilting is realized.

Description

technical field [0001] The invention belongs to the field of hydraulic engineering equipment, in particular to a water conservancy engineering device for dredging river channels. Background technique [0002] In water conservancy projects, it is often necessary to clean up the silt in the river. The current cleaning device mainly uses small machines to cooperate with other machines to work together, and it is transported after being sucked by the dredge pump. However, since this implementation requires the cooperation of multiple mechanical equipment at the same time, the cost between the links is virtually increased, and because the river silt has a certain adsorption effect on harmful pollution elements such as heavy metals in the water body for a long time, it will be in the river silt for a long time. There are harmful elements such as heavy metals. If they are simply transported and placed, these harmful elements such as heavy metals will re-enter the groundwater after ...

AI Technical Summary

Problems solved by technology

However, since this implementation requires the cooperation of multiple mechanical equipment at the same time, the cost between the links is virtually increased, and because the river silt has a certain adsorption effect on harmful pollution elements such as heavy metals in the water body for a long time, it will be in the river silt for a long time. There are harmful elements such as heavy metals. If they are simply transported and placed, these harmful elements such as heavy metals will re-enter the water body of groundwater after rain or snowfall, and the piled sludge will easily cause secondary pollution to the environment.

At the same time, because the river silt is basically mixed with hard massive solids such as stones, when the sludge is further treated, the existence of these hard massive solids will cause a very large threat of damage to the subsequent treatment equipment. The method of layered filtration removes stones, but because the sludge is easy to form a certain amount of secondary silt during the treatment process, it is easy to cause the separation effect of the two to be low in many cases. High viscosity, easy to cause clogging of filter equipment, and then further deteriorate the separation effect of the two

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