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Movable ultrasonic stirring cleaning tank and method for repairing heavy metal contaminated soil

A technology of polluted soil and ultrasonic stirring, which is applied in the field of environmental pollution control, can solve the problems of secondary pollution of the environment around the equipment, affecting the efficiency of soil remediation, and the inability to continuously feed and discharge materials, etc., to solve the problem of container vibration and height difference Problems, improvement repair effect, effect of low installation height

Inactive Publication Date: 2016-09-21
SOUTH CHINA UNIV OF TECH
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  • Claims
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Problems solved by technology

[0003] At present, the common soil cleaning tanks are mostly open vertical mixing tanks, which have the problem of material overflow to a certain extent. During the implementation process, it is easy to cause secondary pollution to the surrounding environment of the equipment, and the cleaning process needs to be carried out in batches. Continuous infeed and outfeed
The above problems have affected the work efficiency of soil remediation to a certain extent.

Method used

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  • Movable ultrasonic stirring cleaning tank and method for repairing heavy metal contaminated soil
  • Movable ultrasonic stirring cleaning tank and method for repairing heavy metal contaminated soil

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Embodiment

[0031] Such as figure 1 with 2 shown. The invention discloses a movable ultrasonic stirring cleaning tank for repairing polluted soil, which comprises a bracket 1, a tank body 6 arranged on the bracket 1, a stirring shaft 8 arranged in the tank body 6, and multiple sets of stirring shafts 8 axially installed The stirring paddle 9 for stirring and pushing the material (the mixed material liquid of the soil to be repaired and the cleaning agent) on the top, and the driving mechanism for driving the stirring shaft 8 to rotate; the material is sent into the tank body 6 by the feed port 7, and the Under the stirring and pushing action of the paddle 9, it is discharged from the discharge port 12;

[0032] A plurality of chambers 11 (stirring chambers) separated by partitions 11-1 are provided in the axial direction of the tank body 7; the stirring shaft 8 passes through each partition 11-1 successively, and each chamber A group of stirring paddles 9 are distributed in 11; a commu...

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Abstract

The invention discloses a movable ultrasonic stirring cleaning tank and method for repairing heavy metal contaminated soil. Multiple cavities separated by partition plates are sequentially arranged in a tank body in the axial direction. A stirring shaft penetrates the partition plates in sequence. A set of stirring blades are distributed in each cavity. A communicating hole is formed in each partition plate. The forming positions of the communicating holes and the positions of the communicating holes in the adjacent partition plates are distributed in a staggered manner. Baffling is formed when materials pass through the cavities in sequence. After the contaminated soil and a cleaning agent are mixed according to a certain proportion, the mixture is continuously fed into the tank body at a certain flow speed through a feeding port, cleaning is conducted for 30 min to 60 min under the ultrasound-stirring double effect, and therefore elution of heavy metal can be completed. The movable ultrasonic stirring cleaning tank is compact in structure, convenient to transfer, uniform in stirring, capable of working continuously and high in stirring efficiency.

Description

technical field [0001] The invention relates to the technical field of environmental pollution control, in particular to a movable ultrasonic stirring cleaning tank and method for repairing heavy metal polluted soil. Background technique [0002] Soil heavy metal pollution has the characteristics of persistence, severity and irreversibility. With the advancement of the elimination of outdated production capacity, some heavy-duty enterprises need to relocate and leave behind a large number of polluted industrial sites, which has triggered the society's attention to the prevention and control of heavy metal pollution and soil restoration. highly anticipated. Some heavy metal-polluted sites are compound-polluted by various metals, and belong to the low-to-medium concentration pollution level, and the quick-acting soil cleaning method can be used for the remediation of soil heavy metal pollution. [0003] At present, the common soil cleaning tanks are mostly open vertical mixin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B09C1/02
CPCB09C1/02
Inventor 潘伟斌陈捷吴俭李晓春
Owner SOUTH CHINA UNIV OF TECH
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