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Trawl-type water surface oil collection device and method

A technology for oil slicks and collection devices on water surfaces, which can be used in general water supply conservation, cleaning of open water surfaces, water conservancy projects, etc. It can solve problems such as floating oil slicks, achieve large-area collection and cleaning, reduce forward resistance, and collect and clean efficiency high effect

Inactive Publication Date: 2018-11-23
NORTHWEST UNIV(CN)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem of large-area oil slick cleaning, and to provide a trawling-type surface oil slick collection device and collection method, which can solve the problem of the conventional collection method that the slick oil drifts away with the water flow after encountering obstacles, and can be caught like a trawling net. Collect and clean the oil slick on the water surface quickly, efficiently, and in a large area like a fish, and recover the oil slick to the maximum extent

Method used

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  • Trawl-type water surface oil collection device and method
  • Trawl-type water surface oil collection device and method
  • Trawl-type water surface oil collection device and method

Examples

Experimental program
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Embodiment 1

[0021] (1) Using 500-mesh stainless steel mesh as the base material, prepare a hydrophilic stainless steel oil-blocking mesh containing micro-nano structure and amphoteric ion polymer, the static water contact angle is 8-10 degrees, the smaller the water contact angle, the better; underwater The oil contact angle is greater than 150 degrees, and the larger the oil contact angle, the better.

[0022] (2) Several floats 1 and sinkers 6 are respectively fixed at the upper and lower ends of the hydrophilic and oleophobic stainless steel mesh. The floats and sinkers can be directly connected to the stainless steel mesh, or they can be connected in series with the steel rope 4 first and then connected to the stainless steel mesh. The oil-blocking net 2 is connected to form a water-permeable oil-blocking net. The setting of the float and the sinker is to achieve the principle that when the tugboat is towed, the part of the oil-blocking net is higher than the water surface, and the par...

Embodiment 2

[0024] The difference from Example 1 is that the nylon filter is used as the base material to prepare a hydrophilic nylon oil-repelling net containing micro-nano structure and a hydrophilic polymer gel coating, and the other contents are the same.

Embodiment 3

[0026] The difference from Example 1 is that the polyester-cotton filter is used as the base material to prepare a hydrophilic polyester oil-blocking net containing micro-nano structure and zwitterionic polymer coating, and the other contents are the same.

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Abstract

A trawl-type water surface oil collection device comprises a belt-shaped oil blocking net, wherein steel ropes are connected to the two ends of the oil blocking net, a plurality of floaters are arranged on the oil blocking net at intervals, and a plurality of sinkers are arranged at the lower end of the oil blocking net at intervals; a collection opening is formed in the middle of the oil blockingnet, is located in the side close to the floaters and is connected with an oil guide pipe; the oil blocking net is made from a hydrophilic and oleophobic net film, the static water contact angle of the hydrophilic and oleophobic net film is 0-10 degrees, and the underwater oil contact angle of the hydrophilic and oleophobic net film is 120 degrees; and the diameter of meshes of the hydrophilic and oleophobic net film is smaller than 100 microns. By adoption of the trawl-type water surface oil collection device, the problem that according to a conventional collection method, water surface oildrifts away along with water flow after being blocked can be solved; and water surface oil in a large area can be rapidly and efficiently collected and removed like catching fish through a trawl, andthe water surface oil can be recovered to the maximum extent.

Description

technical field [0001] The invention belongs to the technical field of cleaning and collecting oil slicks on the water surface, and in particular relates to a trawling-type oil slick collecting device on the water surface and a collection method. Background technique [0002] Oil spills on the surface of the water usually produce a long and narrow oil slick, which expands over time and changes in ocean currents. The current adsorption methods such as oil-absorbing felt and oil-absorbing sponge are difficult to deal with fast-spreading and large-area water surface oil spills due to the limited oil absorption capacity of the adsorbent, low oil removal efficiency, and high cost of use, and it is difficult to quickly and efficiently control the impact of oil spills. harm. [0003] A patented preparation method of a hydrophilic and oleophobic oil-water separation stainless steel mesh (CN 105964014A) discloses that a hydrophilic and oleophobic oil-water separation membrane is con...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02B15/04E02B15/10
CPCE02B15/04E02B15/045E02B15/10Y02A20/204
Inventor 宫永宽孟凡宁
Owner NORTHWEST UNIV(CN)