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Crushing and uniform mixing integrated intelligent remediation equipment for soil remediation

A soil remediation and intelligent remediation technology, which is applied in the restoration of contaminated soil, mixers, chemical instruments and methods, etc., can solve the problems of poor mobility and operation stability, inaccurate measurement accuracy, and low degree of intelligence. Improve the mixing degree, avoid secondary pollution, and have a strong bearing capacity

Pending Publication Date: 2020-12-22
GUANGXI BOSSCO ENVIRONMENTAL PROTECTION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the British Lore company has developed a mobile RAW screening equipment and a high-speed intelligent mixing equipment RAW-VL. RAW-VL has a strong ability to treat soil, sludge or other wastes, up to 400m 3 / h, has the advantages of high processing efficiency, strong adaptability to the construction site, stable operation, etc., but the equipment is bulky, not easy to move, and the screening and stirring are separated, and the degree of integration and intelligence is low.
[0004] Some domestic equipment is improved with reference to foreign equipment, but there are still problems such as low repair efficiency, inaccurate measurement accuracy, poor mobility and operational stability, etc.

Method used

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  • Crushing and uniform mixing integrated intelligent remediation equipment for soil remediation
  • Crushing and uniform mixing integrated intelligent remediation equipment for soil remediation
  • Crushing and uniform mixing integrated intelligent remediation equipment for soil remediation

Examples

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Comparison scheme
Effect test

Embodiment 1

[0045] In a site polluted by heavy metals, the main soil pollutants are Zn, Cd, Pb, and As. Two solid repair materials, activated carbon and alkaline oxide, are selected, and the equipment of the present invention is used for repair and maintenance for one week; the soil before repair and after repair is respectively "Solid waste leaching toxicity leaching method sulfuric acid nitric acid method" (HJ / T 299-2007) and "Solid waste corrosivity determination glass electrode method" (GB / T 15555.12-1995) for the determination of heavy metal toxicity leaching concentration and pH. The results are shown in Table 1. After remediation, the soil reached the remediation target of the heavy metal-contaminated site.

[0046] Table 1 Toxicity leaching concentration and pH value of heavy metals before and after soil remediation

[0047]

Embodiment 2

[0049] A heavy metal polluted site, the main soil pollutant is Cr 6+ , Cd, Pb, As, select this liquid repair material of calcium polysulfide, adopt the equipment of the present invention to repair, and maintain for one week; before repair and after repair, the soil is respectively according to "solid waste leaching toxicity leaching method sulfuric acid nitric acid method" (HJ / T 299-2007) and "Glass Electrode Method for Determination of Corrosivity of Solid Waste" (GB / T15555.12-1995) for the determination of heavy metal toxicity leaching concentration and pH. The results are shown in Table 2. After remediation, the soil reached the remediation target of the heavy metal-contaminated site.

[0050] Table 2 Toxic leaching concentration and pH value of heavy metals before and after soil remediation

[0051]

[0052] The equipment of the present invention completes a series of processes such as screening, crushing, dosing, and mixing of polluted soil through the cooperation of ...

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Abstract

The invention discloses crushing and uniform mixing integrated intelligent remediation equipment for soil remediation. The equipment comprises a feeding system, a chemical adding system, a crushing and mixing system, a discharging system and an automatic control system, the feeding system conveys crushed and screened contaminated soil to the position below the chemical adding system, the chemicaladding system releases chemicals, the soil and the chemicals are crushed and mixed through the crushing and mixing system, and then mixed materials are conveyed to the outside through the dischargingsystem to be maintained and recycled; the driving system is responsible for driving the whole equipment to run and walk; and the automatic control system is responsible for controlling the automatic control operation of the whole equipment. According to the method, feeding, crushing and mixing integrated operation in soil remediation is achieved, manpower, material resources and financial resources are saved, efficient solidification / stabilization remediation of the heavy metal contaminated soil is achieved, and the method particularly has a good remediation effect on the heavy metal compositecontaminated soil.

Description

technical field [0001] The invention relates to an in-situ repairing equipment for soil heavy metal pollution, in particular to an integrated intelligent repairing device for crushing and mixing for soil repairing. Background technique [0002] In recent years, the soil remediation industry at home and abroad has developed rapidly, and a variety of remediation technologies and equipment have been developed. Among them, in-situ remediation is one of the commonly used heavy metal-contaminated soil treatment methods. It refers to excavating the polluted soil from the polluted area, transporting it to the treatment area, adding a solidification / stabilizer to the polluted soil, and stirring to make it fully Mixing, through physical and chemical effects, transforms heavy metals into chemically inactive forms, reducing the migration and diffusion of heavy metals in the environment. The remediation process mainly includes multiple links such as screening, crushing, dosing, mixing, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B09C1/00B01F13/10B02C21/02
CPCB09C1/00B02C21/026B01F33/83
Inventor 杨国航杨崎峰周永信宋海农李琼黄锦孙和利钊顾静张海欧郑子健牛婧
Owner GUANGXI BOSSCO ENVIRONMENTAL PROTECTION TECH
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