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Method for restraining sand-dust suspension and sand flowing

A sand and dust technology, which is applied in the field of restraining the flow of sand particles, weakening the ability of sand and dust to rise in suspension, and reducing the probability of sandstorms, can solve problems such as limited effectiveness and inaccurate entry points

Inactive Publication Date: 2007-12-05
李福德
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Judging from the current trend of desertification, the speed of desertification expansion and the intensification of sandstorms, it objectively reveals a fact that the situation of desertification and desertification in my country is getting worse day by day, and the effectiveness of the measures that have been taken is quite limited, or the entry point to solve the problem is still Therefore, it is urgent to explore a new, low-cost, and effective sand control method

Method used

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  • Method for restraining sand-dust suspension and sand flowing
  • Method for restraining sand-dust suspension and sand flowing
  • Method for restraining sand-dust suspension and sand flowing

Examples

Experimental program
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Effect test

Embodiment 1

[0018] The processed conductive fibers 14 , short conductive yarns 18 , short metal wires 16 or metallic objects and metal ore residues are placed and spread in desertification and desertification areas according to the effective density, at least one thousandth of the projected area. The above-mentioned substances can be dosed repeatedly, which can neutralize or reduce the creeping friction between dust / sand particles or the dominant charge generated by dust / sand particles caused by wind, cyclone, and electric field, and correspondingly reduce or weaken the surface layer of sand / sand The electrostatic phenomenon in the layer will play an active role in the process.

[0019] In Fig. 1-2, several conductive short yarns 18 with a length less than 0.5 meters are scattered in the sandy environment, and many sand grains will adhere to themselves, so that not only is it beneficial to increase its own weight but also reduce its drift with the wind or chances of clustering together. ...

Embodiment 2

[0023] Three-dimensional nets 30 are made of metal shapes or wires or materials with good electrical conductivity on the surface, and are arranged in desertification and desertification areas close to wind sources. The height of the three-dimensional nets 30 is preferably higher than 0.2 meters.

[0024] In Fig. 4, the dominant charge of the floating dust / quick sand on the surface of the sand layer or the space above the ground caused by the strong wind, cyclone or electric field is neutralized or reduced by the mesh 30, and the probability of the sand falling to the ground increases, as shown in the figure After the charged electric sand 34 passes through the net 30, it is not charged because the dominant charge is neutralized, and the sand grains fall to the ground one after another due to gravity.

Embodiment 3

[0026] In Figs. 5-7, the net 30 can be in various structures and shapes, including a cylindrical net 42, a spherical net 46, and a sledge-like net 36 with the windward side 50 slowly bending upwards, all of which can pass through a rope-like net. Object 40 is connected with anchoring device or sandbag 52. When the flowing sand collides with the net 30, the dominant charge on the quicksand is released correspondingly, thereby increasing the possibility of promoting the landing of the sand. For the benefit of the net 30 generally floating on the sand layer, the partial area of ​​the spherical net 46 and the sledge net 36 is selected to be a joyride fabric 48, so as to obtain the driving force of the wind to it, impel its rolling / displacement and have a larger The floating range helps it float above the sand layer. When surface quicksand passes through, in order to effectively release the accumulated charge, the bottomless bag (tube) 42 woven by the yarn containing metal wire / co...

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Abstract

The invention relates to the field of sand protection and sand treatment, especially provide a method to weaken the suspension and elevation capability of sand, suppress the sand grains flowing and reduce the incidence rate of the sand storm. It is characterized in that: release and project conductive fiber 14, short wire 16 and conductive short yarn 18 which contains wire and conductive fiber on the desertification areas on their effective density. Process the metal sectional materials, wires and materials with surface of good conductibility to stereo reticulation and pave them in the desertification areas near the wind regime. It can neutralize or reduce the dominance charges resulting from the sand friction or collision caused by the strong wind, cyclone or electric field correspondingly. It also can suppress the reduction of sand friction factor caused by the electrostatic phenomenon and maintain the relative position under the sand gravity action to reduce the suspension and flowing ability of sand. The invention avianizes the action force of wind, cyclone or electric field on sand by weakening the repulsion, variance or suspension capability of sand, which is in favor of resolving the sand treatment problem ultimately.

Description

technical field [0001] The invention relates to the field of sand prevention and sand control, and in particular provides a method for weakening the ability of sand and dust to rise in suspension, restraining the flow of sand grains, and reducing the occurrence probability of sand and dust storms. Background technique [0002] Regarding sand control, the most common method adopted by our country for a long time is tree planting. The principle is to achieve the effect of sand fixation through the root system of trees, to reduce the level of wind through trunks and branches, and to block or weaken the adverse effects of sand dune migration, desertification expansion and sand dust on the human living environment by a series of windbreak forests. Over the years, the state has invested a lot of manpower and financial resources in this area, but the results are not satisfactory. There are also some methods of sand control, including chemical, physical,,,,,,,,,,,,,,,,,,,,,,,,,,,,,...

Claims

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Application Information

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IPC IPC(8): E02D3/00
Inventor 李福德
Owner 李福德
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