Continuous anti-blocking separation device and method for medium and small-sized river dredging sludge and garbage

Abstract

The invention discloses a continuous anti-blocking separation device and method for medium and small-sized river dredging sludge and garbage. Mud enters a box body (1) from a mud inlet (3), the part of the mud flows out from a mud hole (42) of a conveying belt device (4), the main flow turns from the right side and flows out from a mud outlet(12) passing through a 90-degree arc sieve plate (9), avortex is formed below a rotary gate (6), a low flow velocity region is formed on the upper right side of the box body (1), namely, on the inner side of a garbage cleaning port (11), the flow rate ofthe mud inlet (3) is controlled to be 1.0 to 2.5 m / s, a vortex region is formed in the upper area of the 90-degree arc sieve plate (9), the flow rate of the vortex region is in the range of 0.1 to 0.6m / s, and a closed space is constructed on the right side of the box body (1) through the rotary gate (6), so that the uninterrupted desilting operation is realized. The garbage in the sludge is concentrated to one side by using the water flow power, the closed space is constructed through the rotary gate (6), the garbage in the sludge can be smoothly separated out, so that the uninterrupted desilting operation is realized, the problem that sieve meshes of surface of the conveying belt are blocked is effectively solved, the problem of easy blockage of a port of a pump in the dredging process of the medium and small sized rivers is effectively solved, and the dredging efficiency is remarkably improved.

Description

technical field [0001] The invention relates to underwater dredging mechanical equipment, which belongs to the technical field of excavation or dredging of IPC classification E02F5 / 00 water conservancy dredging projects, and in particular to a device and method for continuous anti-blocking and separation of small and medium-sized river channel dredging silt garbage. Background technique [0002] At present, because the river is polluted by industrial sewage discharge, industrial waste and domestic garbage are often discarded in the river, and the treatment of silt has naturally become a major problem in the dredging of small and medium rivers. The dredging projects of small and medium-sized rivers in cities and rural rivers are affected by urban traffic, bridges and culverts, buildings on both sides of the river, mud dumps, flood control, water quality, and environmental protection. Manual methods are usually used for dredging and dredging by hydraulic excavation. The dredgin...

AI Technical Summary

Problems solved by technology

[0008] As mentioned above, traditional dredging methods can no longer meet the demand

The existing dredging equipment is large in size and cannot meet the navigation requirements of small and medium rivers. Therefore, it is urgent to invent a garbage separation device in small and medium rivers.

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