Contaminated soil ex-situ medicating, mixing and restoring system

Abstract

The invention relates to a contaminated soil ex-situ medicating, mixing and restoring system. The system consists of a soil warehouse, a quantitative feeder, a solid medicament bin, a weighing screw feeder, a liquid medicament box, a medicament pump, a spraying device, a soil crusher, a feeding belt machine, a cutting, crushing and mixing device, a soil stirrer, a discharge belt machine and a scattering, crushing and mixing device. Contaminated soil can be rapidly restored by adopting a solid or liquid remediation medicament according to different contaminated soil characteristics, and the contaminated soil ex-situ medicating, mixing and restoring system is mainly suitable for ex-situ remediation occasions of heavy metal or organic matter contaminated soil. The contaminated soil ex-situ medicating, mixing and restoring system is wide in application range, high in processing capacity and medicating and measuring precision, good in crushing and mixing effect, is high in automation degree for contaminated soil, can be used for solidification stability of heavy metal contaminated soil and chemical and oxidation remediation treatment of organic matter polluted soil, also can be used for the crushing and mediation mixing operation of other similar materials, and has favorable environment-friendly and social benefits.

Description

technical field [0001] The invention relates to a polluted soil heterotopic dosing and mixing restoration system, which belongs to the category of mechanical equipment. Background technique [0002] With the rapid development of society and economy, the problem of soil pollution is becoming more and more serious, and the demand for mature, applicable, economically feasible, safe and reliable contaminated soil remediation technology and equipment is also increasing. At present, the most widely used soil remediation technologies in China are mainly ectopic solidification stabilization and chemical oxidation remediation treatment. The solidification stabilization technology is mainly used for the remediation of heavy metal contaminated soil, and the chemical oxidation technology is mainly used for the remediation of organic matter polluted soil. The use of the above remediation technologies requires crushing and mixing of contaminated soil. The contaminated soil must be crushed...

AI Technical Summary

Problems solved by technology

[0004] 1. Poor adaptability to different soils. For cohesive soil with a moisture content of more than 20%, it is necessary to increase the pretreatment process to reduce the soil moisture content, otherwise there will be serious material blocking problems, which will cause the equipment to fail to operate normally, and the pretreatment process will be increased. lead to an increase in time and cost

[0005] 2. The treatment efficiency is low, and the crushing and mixing effect is difficult to meet the requirements of soil remediation for soil particle size and mixing uniformity

[0006] 3. At present, domestic soil crushing and dosing and mixing equipment are carried out separately. The crushing treatment is carried out first, and then the dosing and mixing process is carried out. There are many operating links, complicated processes, and low equipment automation.

[0007] In short, the existing domestic equipment that can be used for solidification and stabilization of contaminated soil and chemical oxidation remediation treatment has many technical limitations, small scope of application, and poor universality

Images