Soil remediation test device utilizing thermal desorption method

Abstract

The invention discloses a soil remediation test device utilizing a thermal desorption method. The device comprises a working table, wherein a mounting hole is formed in the middle of the outer wall ofthe top of the working table, and a soil discharging hopper is welded to the inner wall of the mounting hole; a shell without bottom is welded to the top end of the soil discharging hopper, and an upper baffle and a lower baffle are welded to the inner walls of the two sides, close to the bottom end, of the shell; a first through hole and a second through hole are formed in the outer walls of thetwo sides of the shell respectively, and a rotating rod is connected to the first through hole in an inserted mode; a round rod is welded to the inner wall of the second through hole, and the same soil releasing device is arranged at one ends, opposite to each other, of the round rod and the rotating rod; and the soil discharging device comprises a cylindrical heating shell, and the specificationof the heating shell is matched with the specification of the shell. According to the test device, soil is remedied by utilizing the thermal desorption method, when the device is used for heating thesoil, the soil can be uniformly heated, the progress of the test is accelerated, the soil caking can be avoided in the heating process, and the practicability of the device is improved.

Description

technical field [0001] The invention relates to the technical field of soil remediation, in particular to a thermal desorption method soil remediation test device. Background technique [0002] In the research process of soil remediation, the most commonly used method is thermal desorption method, which is to heat the soil polluted by organic matter to above the boiling point of organic matter, so that the organic matter adsorbed in the soil volatilizes into After the gaseous state is processed, in the process of repairing the soil by thermal desorption, in order to facilitate the subsequent batch processing of the soil to "prescribe the right medicine", it is necessary to sample some soil for testing, and to test the types of organic matter contained in the sampled soil A test device is required in the process. [0003] At present, most of the existing devices for carrying out soil remediation tests by thermal desorption method have the following deficiencies during use: 1...

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Problems solved by technology

[0003] At present, most of the existing devices for carrying out soil remediation tests by thermal desorption method have the following deficiencies during use: 1. the existing devices are simple to stir the soil during the test. , due to the poor fluidity of the soil, the soil will accumulate on the side wall of the container, which will lead to uneven heating, insufficient volatilization of organic matter, and affect the collection of organic matter. 2. When collecting volatile gases, the condensation effect Not good, it will cause low efficiency of organic gas collection

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