Soil sampling device for polluted land plot environment survey
A technology of environmental investigation and collection devices, applied in the direction of sampling devices, etc., can solve the problems of affecting the detection results, limited sampling depth, and affecting the analysis results of pollutants in the soil, so as to achieve the effect of ensuring sampling efficiency and sampling depth
Pending Publication Date: 2018-12-18
山西伊万泰克科技有限公司
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Problems solved by technology
Compared with geological sampling, sample collection has stricter requirements. First, undisturbed soil samples must be collected. Water drills or rotary drills are not allowed. Water drills will destroy the moisture content of soil samples and affect the analysis results of pollutants in the soil; rotary drills make soil The temperature rises, causing the volatile pollutants in the soil to overflow, affecting the detection results
Second, during the sampling process, it is necessary to strictly control the upper soil from falling into the sampling hole, causing cross-contamination; there is generally a certain thickness of backfill in industrial sites, and the backfilled bricks and cement blocks are easy to fall into the sampling hole to block the drilling machine from continuing to sample
A direct-push drilling rig imported from abroad has high sampling efficiency, but its disadvantages are limited sampling depth, and the sampling work cannot be completed for sand and pebble layers
Method used
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[0031] In order to further illustrate the technical solution of the present invention, the present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0032] Such as Figure 1 to Figure 10 As shown, a soil collection device for environmental investigation of polluted plots, including a sampling device and a lifting device;
[0033]The sampling device is composed of a sampling sleeve 1, a thrust tapered roller bearing 2, a bentonite liquid container 3, a transmission layer 4, an end cover 5, a connecting rod 6, a limit sleeve 7 and a weight 8; in the sampling sleeve Tube 1 middle part is provided with sampling aperture 22, and the diameter of described sampling sleeve 1 and bentonite liquid container 3 is identical, and the bottom of described connecting rod 6 is provided with shaft shoulder 601, and described bentonite liquid container 3 consists of barrel 301, cover 302 , two bearings 304 and two bearing end caps 305, a ...
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The invention relates to the field of soil sampling, in particular to a soil sampling device for polluted land plot environment survey. The soil sampling device comprises a sampling device and a lifting device; the sampling device is composed of a sampling sleeve, a tapered roller thrust bearing, a bentonite solution container, a transmission layer, an end cap, a connecting rod, a limiting sleeveand a hammer; and the lifting device is composed of a base I, an electromotor II, a winch I, a base II, an electromotor III, a winch II, a support, three fixed pulleys and a positioning frame. According to the soil sampling device, impact type power is adopted, and therefore the sampling depth can be guaranteed; and meanwhile, the wall of a sampling hole is protected by adopting bentonite, the condition that due to the fact that backfill bricks and concrete blocks drop into the sampling hole, sampling is blocked is prevented, the condition that unpolluted deep soil is polluted due to the factthat surface polluted soil drops into the sampling hole can be prevented, the sampling efficiency is guaranteed, and usage of a heavy casing pipe is avoided.
Description
technical field [0001] The invention relates to the field of soil collection, in particular to a soil collection device used for environmental investigation of polluted plots. Background technique [0002] The environmental investigation of polluted plots is an industry that has emerged in recent years. It is necessary to collect surface and deep soil samples in the plots to analyze the types and concentrations of pollutants. Compared with geological sampling, sample collection has stricter requirements. First, undisturbed soil samples must be collected. Water drills or rotary drills are not allowed. Water drills will destroy the moisture content of soil samples and affect the analysis results of pollutants in the soil; rotary drills make soil As the temperature rises, the volatile pollutants in the soil will overflow and affect the detection results. Second, during the sampling process, it is necessary to strictly control the upper layer of soil falling into the sampling h...
Claims
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IPC IPC(8): G01N1/08
CPCG01N1/08
Inventor李磊张鑫曹志坚刘利军向云
Owner山西伊万泰克科技有限公司