A multi-pipe column mud extractor

Abstract

The invention discloses a multi-pipe columnar mud extractor, which comprises a shell, an inner container and a base. The tension steel wires together determine the lifting and lowering height of the shell; the slots on both sides of the base are used to install clamping plates, and the expansion and contraction of the clamping plates is controlled by the rubber bands on both sides outside the base; when the dredger does not collect sediment, the shell Pull up to the set height, the clamping plate of the base is opened, and the clamping plate is clamped on both sides of the inner tank. When the mud collector is pulled up after collecting the bottom mud, the tension steel wire at the upper end of the shell and the movable lock on the upper end of the inner tank When the inner tank falls off, the inner tank is lifted up independently by the tension of the rope, and the outer shell and the base slide down. Mud collection. The device is easy to operate, can carry out fixed sampling and parallel sampling to the river bottom mud, and improves the accuracy and high efficiency of sampling.

Description

Technical field [0001] The present invention relates to the field of environmental science, specifically to a multi-tube column sludge miner. Background [0002] Sediment is any particle that can be moved by fluid flow and eventually form a layer of solid particles under water or other liquids. In rivers and lakes, ecosystems can also be called sediment, which is an important medium for the growth and habitat of many aquatic animals, plants and microorganisms, as well as the existence, transformation and action of enzymes. At the same time, river and lake sediments are also an important reservoir of nutrients in rivers and lakes, which can not only indirectly reflect the pollution situation and hydrodynamic state of rivers and lakes, but also have a dynamic balance of absorption and release between water bodies and sediment, when there is more serious pollution in the water body, a part of the pollutants can enter the sediment through sedimentation, adsorption and other effects; ...

AI Technical Summary

Problems solved by technology

[0003] At present, in layered sediment sampling, the columnar mud sampler is often used to obtain layered sediment samples, but the columnar mud sampler is a single-tube mud sampling device, and only one columnar mud sample can be collected at a time. For parallel samples The collection is not only time-consuming but also interferes with the change of the collection location; the thickness of the mud sample collected by some columnar mud samples is generally controlled by the counterweight and the density of the sediment itself, which makes the thickness of the collected mud sample either deep or shallow, which is not conducive to parallel sampling. Comparison

All in all, the current columnar mud sampler can no longer meet the needs of layered sediment sampling in the current study of aquatic ecosystems

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