Device and method for separating and collecting sand and scum in bottom mud sediment

A technology for collecting devices and sediments, which is applied in the direction of solid separation, etc., to achieve the effects of increasing organic content, simple device, and improved quality

Active Publication Date: 2021-07-06
HUBEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of the above defects or improvement needs of the prior art, the object of the present invention is to provide a device and method for separating and collecting sand and scum in bottom mud deposits, aiming at solving how to separate mud and sand, how to collect mud, Sand and scum and other problems

Method used

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  • Device and method for separating and collecting sand and scum in bottom mud sediment
  • Device and method for separating and collecting sand and scum in bottom mud sediment

Examples

Experimental program
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Effect test

Embodiment 1

[0039] A device for separating and collecting sand and scum from bottom mud sediments, comprising: a device housing 1, a self-mixing pipeline agitator 2, a lotus-shaped sand settling device 3, an aeration device 4, and a scum flotation device;

[0040] Device housing 1: it is the shell of the whole device;

[0041] Self-mixing pipeline agitator 2: vertically connected to the middle and upper part of the device housing 1, the upper opening is the feed port 201, which uses mixed flow to destroy sediment aggregates to achieve pre-separation of mud and sand;

[0042] Lotus-shaped grit setting device 3: the device is in the shape of a lotus, connected to the lower part of the device shell 1, facing the lower port of the pipeline agitator 2, used to receive the sinking sand and provide a still water area to accelerate the settlement of the sand in the device shell 1 bottom;

[0043] Microporous aeration device 4 and scum flotation device: the aeration device 4 is conducive to promoti...

Embodiment 2

[0045] Based on Example 1, Example 2 lists several preferred technical features, and Example 1 can choose one or most of them in combination to form new and different technical solutions.

[0046] Optionally, the above-mentioned device for separating and collecting sand and scum from bottom mud sediments, the scum flotation device includes a zigzag overflow weir 501 weir opening and an overflow The scum collecting pipe 5 connected at the mouth of the weir is positioned at the water level of the scum collecting overflow weir 501 to control the water level in the whole device. The scum flotation unit may also include a scum conduit 502 to collect the scum 503 to the scum collection unit.

[0047] Optionally, the above-mentioned device for separating and collecting sand and scum from bottom mud sediments also includes a secondary separation device 7 for settling sand, which is a rounded platform or chamfered platform, and is located in the center of the lotus-shaped sand settling...

Embodiment 3

[0059] A method for separating and collecting sand and scum in bottom mud sediments, using the device for separating and collecting sand and scum in bottom mud sediments described in any one of the above;

[0060] First, mix the bottom mud sediment and water to be treated evenly in a certain proportion to obtain a mixed bottom mud, and then pump it into the self-mixing pipeline mixer 2 through the feed port, and the self-mixing pipeline mixer 2 and The microporous aeration device 4 works, and the electromagnetic switch 601 for mud delivery and the electromagnetic switch 603 for sand delivery are in the closed state; when the water level in the device housing 1 reaches the overflow weir 501, the electromagnetic switch 601 for mud delivery and the electromagnetic switch 603 for sand delivery are turned on; After the stirring is finished, stop pumping the bottom mud sediment until all the mud and sand materials in the barrel are pumped out, the state of the mud feeding electromagn...

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Abstract

The invention relates to a device and method for separating and collecting sand and scum in bottom mud deposits, including a device shell, a self-mixing pipeline type agitator, a lotus-shaped sand settling device, a sand settling secondary separation device, and microporous aeration device and scum flotation unit. When the mixed sediment that needs to be separated is pumped into the pipeline mixer through the feed inlet, it moves downward under the action of gravity and push flow, coupled with the impact of microbubbles from the bottom-micro jet flow, the sediment with a larger specific gravity passes through the pipeline The type agitator enters the lotus-shaped grit settling device to accelerate its deposition at the bottom of the device shell, and then is pumped out through the sand pumping pipe; the sinking mud with a small specific gravity can be discharged through the mud pipe. At the same time as the sand is lifted, due to the turbulent mass transfer of the sinking mud and rising microbubbles, the scum is floated to the scum flotation device above the device for collection. This device realizes the efficient collection of scum in the bottom mud sediment and the separation and recovery of mud and sand, and has the characteristics of simple operation and continuous operation.

Description

technical field [0001] The invention belongs to the technical field of recycling utilization of bottom mud resources, and in particular relates to a device for separating and collecting sand and scum in bottom mud sediments and a method thereof. Background technique [0002] There are many ways to utilize sediment as a resource, mainly including direct land use, filling utilization, preparation of building materials, composting and fermentation, etc., and these are the utilization of sediment as a whole, which will limit the wide application of sediment. For example, when making bricks from bottom mud, the formula ratio of bottom mud should not exceed 50%, otherwise, the compressive and flexural strength of bottom mud bricks will be greatly reduced, which cannot meet the standard of market bricks, so bottom mud lifts sand and becomes bottom mud A necessary step before resourceization. [0003] At present, in the process of on-site collection of dredged sediment, a series of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03B9/06
CPCB03B9/06
Inventor 时亚飞黎甜李晓冉张会琴皮科武肖衡林刘德富
Owner HUBEI UNIV OF TECH
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