River dredging and pollution diffusion preventing device

Abstract

The invention relates to a river dredging and pollution diffusion prevention device. The device comprises a pollution interception net, a bottom mud purifying agent adding device and a pollution concentration monitoring device, wherein the pollution interception net is arranged in a water body behind dredging equipment, a traction rope of the pollution interception net is connected with the dredging equipment, a plurality of adsorption material ropes are arranged below a buoy to form the interception net, and a sinking hook is connected with the adsorption material ropes; the bottom mud purifying agent adding device is connected with a nozzle pipe through a metering device and a hose, and the nozzle pipe is arranged below the buoy; the pollution concentration monitoring device is arranged in the water body at the rear end of the intercepting net and is connected with the buoy; and when the pollution concentration exceeds a set value, the bottom mud purifying agent adding device is controlled to add a bottom mud purifying agent into the water body. The device has a good interception effect on pollutant diffusion caused by disturbance of bottom mud in the construction process of the dredging equipment during dredging of urban small and medium-sized inland rivers, meanwhile, pollution diffusion can be further reduced by adding a bottom mud purifying agent in a reverse control mode, and the pollution bottom mud which is not removed is reduced; and dredging and bottom mud purification are further combined to achieve synchronous construction.

Description

technical field [0001] The invention belongs to the field of water environment treatment, and in particular relates to a river dredging anti-pollution diffusion device, which is applied to the diffusion control and further purification of polluted mud produced by river dredging. Background technique [0002] The treatment of the river's internal source polluted sediment generally adopts a combination of dredging and sediment purification. At present, the dredging method of inland rivers is basically manual or mechanical dredging, especially in the case of no dry water operation, the use of machinery in the construction of rivers will cause the problem of the spread of polluted sediment, which is not only easy to cause The further spread of pollution increases the difficulty of treatment and also makes dredging less effective. At the same time, after dredging, it is necessary to further purify and eliminate the polluted floating mud on the surface that is difficult to remove...

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Problems solved by technology

[0004] Aiming at the deficiencies in the above-mentioned prior art, the present invention provides an anti-pollution diffusion device for dredging rivers, which can solve the problem of diffusion of polluted sediment in the process of dredging rivers, not only for on-site The safe and civilized construction has been greatly improved, and at the same time, it can reduce the risk of secondary dredging caused by secondary pollution; at the same time, the simultaneous construction of sediment purification can be carried out, reducing the input of manpower and material resources, and can reduce the actual treatment effect under the premise of ensuring the treatment effect. Construction cost input

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