Extraction device applied to analysis of soil including polychlorinated biphenyl

Abstract

The invention discloses an extraction device applied to analysis of soil including polychlorinated biphenyl. The device comprises multiple sleeves stacked to form a tubular structure; the multiple sleeves are rotationally connected with a rotation shaft, a locking mechanism is arranged between the two adjacent sleeves, and a tunneling cutting mechanism is hinged to the sleeves; during the processthat soil is extracted into the tubular structure, each locking mechanism separately locks the corresponding two adjacent sleeves; when the soil in the tubular structure is extracted per layers, the locking mechanism releases the locking of the two corresponding sleeves, and the sleeves rotate along the rotation shaft under the driving of an external force to be distributed in a staggered manner,so that the soil in each sleeve rotates along with the corresponding sleeve, and thus separation of the soil in adjacent sleeves is achieved. The device provided by the invention has the characteristics of being accurate in layered soil sample extraction and checking, convenient to operate, and capable of reducing the working strength of operating personnel, and is applicable to the technical field of analysis of the soil including the polychlorinated biphenyl.

Description

technical field [0001] The invention belongs to the technical field of polychlorinated biphenyl-containing soil analysis, and in particular relates to an extraction device for polychlorinated biphenyl-containing soil analysis. Background technique [0002] The English name of polychlorinated biphenyls: Polychlorinated biphenyls, polychlorinated biphenyls are carcinogens, easy to accumulate in adipose tissue, causing diseases of the brain, skin and internal organs, and affecting the nervous, reproductive and immune systems. The chemical properties of polychlorinated biphenyls are very stable and difficult to decompose in nature. They belong to the category of persistent organic pollutants and are mostly used in electrical equipment, such as capacitors and transformers containing polychlorinated biphenyls. At present, most electrical equipment containing PCBs are piled up at designated locations to wait for centralized treatment. However, the soil where the power equipment ha...

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Problems solved by technology

However, the soil where the power equipment has been stacked will be polluted by PCBs to varying degrees. According to the different degrees of pollution, corresponding measures can be taken to restore the soil; however, the existing soil extraction and analysis device, after taking out the soil , in the process of analyzing soil samples, it needs to be carried out layer by layer, and it cannot be inspected and analyzed in isolation, so that it is impossible to accurately measure the penetration degree of PCBs

In the process of sampling, there is no device for excavation or easy introduction of the extraction cylinder into the soil, which increases the labor intensity of the operator, and the existing sampling cylinder does not have the function of cutting off the soil sample and soil in the sampling cylinder, resulting in errors in sampling

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