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Thick sludge depth-setting sampler and sludge depth-setting sampling method

A sampler and sludge technology, which is applied in the field of viscous sludge depth-fixed sampler and sludge depth-fixed sampling, can solve the problems that the turning plate is difficult to complete the turning action and is not suitable for collection, etc., and achieves good integrity, high representativeness, and sampling convenient effect

Active Publication Date: 2018-11-02
JIANGSU HONGYU ENVIRONMENTAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the above-mentioned sample collection device is not suitable for collecting samples of viscous silt at a specific depth position. Due to the limitation of the depth and viscosity of the mud layer, it is difficult for the flap of the above-mentioned collection device to complete the turning action.

Method used

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  • Thick sludge depth-setting sampler and sludge depth-setting sampling method
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  • Thick sludge depth-setting sampler and sludge depth-setting sampling method

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Embodiment 1

[0046] A kind of viscous mud fixed depth sampler, refer to figure 1 and figure 2, which includes a hollow cylindrical sampling tube 1, and a drawing rod 3 is coaxially arranged in the sampling tube 1. There is an opening at the bottom of the sampling tube 1 and a circular end sealing plate 2 at the top. A through hole 21 is opened at the geometric center of the end sealing plate 2 . The top end of the pull rod 3 passes through the through hole 21 , and the bottom end is provided with a movable block 4 that can slide in the inner cavity of the sampling tube 1 and sealably cooperate with the inner cavity side wall of the sampling tube 1 .

[0047] refer to figure 2 , when using the sampler of this embodiment for mud sampling, it is necessary to connect the sampler with drilling equipment such as a hand drill, so as to press the sampler into or extract it from the mud layer. In order to prevent the sampler from being separated from the drilling pressure equipment during the ...

Embodiment 2

[0057] A kind of viscous mud fixed depth sampler, refer to Figure 9 , based on Embodiment 1, the difference between this embodiment and Embodiment 1 is that: the length of the first fastening section 321 of the pull rod 3 is longer than the length of the connecting section 322 . During the process of collecting sludge samples, when the pull rod 3 is pulled upwards, the frictional resistance between the pull rod 3 and the through hole 21 is smaller, making the movement of the pull rod 3 smoother, which is conducive to improving the sampling efficiency.

Embodiment 3

[0059] A method for sampling mud at a fixed depth, using the viscous mud depth sampler described in embodiment 1 to carry out mud sampling at a fixed depth, specifically comprising the following steps,

[0060] Step 1. Fixedly connect the connection end 31 of the pull rod 3 with the drilling weight equipment;

[0061] Step 2. Keep the sampler in a vertical state, and insert the sampler to the specified depth of the mud layer with the help of drilling pressure equipment;

[0062] Step 3, pull the pull rod 3 upwards with the help of the drilling pressure equipment to drive the movable block 4 to slide in the inner cavity of the sampling tube 1 until the clamping plate 5 is fixed on the second clamping section 323 of the pull rod 3;

[0063] Step 4, use the drilling weight equipment to press down the pull rod 3, and at the same time drive the sampling pipe 1 to insert the mud for sampling;

[0064] Step 5. After the sampling is completed, pull the pull rod 3 upwards with the hel...

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Abstract

The invention discloses a thick sludge depth-setting sampler and a sludge depth-setting sampling method, belongs to the technical field of sludge sampling devices and methods, and aims to solve the problem that an existing sampler is not suitable for thick sludge depth-setting sampling. The thick sludge depth-setting sampler is characterized in that a clamping plate with a clamping hole, which ishinged at the top end of a sampling tube, is fastened and clamped with a first fastening section / second fastening section on a pulling rod, so that an opening-closing state of the bottom end opening of the sampling tube is controlled during a process of inserting the sampler into determined depth of the sludge layer and an inserting and sampling process at determined depth. The sampler is simple in structure, is low in producing and manufacturing cost, is convenient to use, is suitable for depth-setting sampling under a thick sludge environment, and is precise in sampling, and the sampled sample is good in integrity and is good in representativeness. The invention correspondingly discloses the sludge depth-setting sampling method applying the sampler, and the method is simple in step, andis suitable for depth-setting sampling under the thick sludge environment.

Description

technical field [0001] The invention relates to a sludge sampling device and a sampling method, more specifically, it relates to a viscous sludge depth-fixed sampler and a sludge depth-fixed sampling method. Background technique [0002] Sludge sampling is to study the accumulation, distribution, transformation and migration of pollutants discharged into the water body in the sediment, and is widely used as an investigation method in the fields of environment and hydrology. [0003] At present, there are many kinds of sampling equipment for sludge. For example, the Japanese patent application publication number JP2002322894 discloses a geological sample collection device and a geological sample collection method. flap. When collecting samples, during the process of pressing the collection device into the soil layer, the flap is pushed open under pressure, which does not prevent the sample from entering the interior of the collection device from the collection port; during t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/14
CPCG01N1/14G01N2001/1418
Inventor 孙加山江胜国王海明杨小刚白梅张斌杨荣温玉荣
Owner JIANGSU HONGYU ENVIRONMENTAL TECH CO LTD
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