Method for preparing high-activity water-reactive metal material for melting ice or snow

A technology of metal materials and highly active water, applied in other chemical processes, chemical instruments and methods, etc., can solve problems such as falls, easy slipping, traffic impact, etc.

Inactive Publication Date: 2012-04-11
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the road is icy, because the friction between the wheels and the road surface is greatly weakened, it is easy to slip and the car cannot be braked, resulting in traffic accidents
Pedestrians are also easy to slip and cause falls
At the beginning of 2008, rain, snow and freezing weather continued to occur in more than a dozen provinces in southern my country, resulting in the closure of many highways due to snow on the roads. transportation, which has a serious impact on traffic
However, in practical applications, due to the limitation of the oxide layer on the metal surface, there are disadvantages such as slow start of the reaction between metal and water, difficulty in continuing the reaction, and low reaction efficiency.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] 1) 100 grams of magnesium metal powder, 2 grams of cobalt tetroxide and 2 grams of sodium chloride are pre-mixed;

[0025] 2) Set the parameters of the ball mill: the ball-to-material ratio of the ball mill is 10:1, the ball milling time is 30 minutes, and 30 ball milling rotation speed cycles are used;

[0026] 3) Put the mixed material and grinding balls in 1) into a ball mill, and perform grinding and compounding according to the ball milling procedure in step 2), to obtain a highly active water-reactive metal material;

[0027] 4) Sprinkle the highly active water-reactive metal material obtained in step 3) evenly on the frozen ice surface with a thickness of 3mm, and the active material starts to react and release heat; as the active material reacts on the frozen ice surface, the frozen ice begins to melt, Then the frozen ice is separated from the bottom, and the frozen ice is completely melted in 3 minutes.

Embodiment 2

[0029] 1) Pre-mix 100 grams of magnesium metal powder, 2 grams of nickel powder and 2 grams of sodium chloride;

[0030] 2) Set the parameters of the ball mill: the ball-to-material ratio of the ball mill is 10:1, the ball milling time is 30 minutes, and 30 ball milling rotation speed cycles are used;

[0031] 3) Put the mixed material and grinding balls in 1) into a ball mill, and perform grinding and compounding according to the ball milling procedure in step 2), to obtain a highly active water-reactive metal fuel;

[0032] 4) Sprinkle the highly active water-reactive metal material obtained in step 3) evenly on the frozen ice surface with a thickness of 3mm, and the active material starts to react and release heat; as the active material reacts on the frozen ice surface, the frozen ice begins to melt, Then the frozen ice is separated from the bottom, and the frozen ice is completely melted in 2 minutes.

Embodiment 3

[0034] 1) Pre-mix 100 grams of magnesium metal powder, 2 grams of cobalt powder and 2 grams of sodium chloride;

[0035] 2) Setting the parameters of the ball mill: the ball-to-material ratio of the ball mill is 10:1, the ball milling time is 30 minutes, and 30 cycles of ball milling speed are adopted.

[0036] 3) Put the mixed material and grinding balls in 1) into a ball mill, and perform grinding and compounding according to the ball milling procedure in step 2), to obtain a highly active water-reactive metal fuel;

[0037] 4) Sprinkle the highly active water-reactive metal material obtained in step 3) evenly on the frozen ice surface with a thickness of 3mm, and the active material starts to react and release heat; as the active material reacts on the frozen ice surface, the frozen ice begins to melt, Then the frozen ice is separated from the bottom, and the frozen ice is completely melted in 3 minutes.

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PUM

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Abstract

The invention relates to a method for preparing a high-activity water-reactive metal material for melting ice or snow, and belongs to the technical field of ice removal. The method comprises the following steps of: mixing metal powder, a catalyst and inorganic salt; setting ball-milling parameters of a ball mill, namely setting a ball-to-material ratio, a ball-milling rotate speed, cycle times, ball-milling time and the like; and putting the mixed materials and a mill ball into the ball mill, milling and combining according to a set ball-milling process to obtain a metal material, and scattering the metal material on the surface of frozen ice or frozen snow uniformly, wherein the active material reacts and releases heat, and the ice and the snow are melted with the reaction of the active material on the surface of the frozen ice or the frozen snow, are separated from the bottom and are melted completely. In the method, the high-activity water-reactive metal material is prepared by a high-energy ball-milling process, and the active material reacts on the surface of the frozen ice or the frozen snow quickly and releases the heat, and has an obvious effect on the quick melting of the frozen ice or the frozen snow.

Description

technical field [0001] The invention relates to the preparation of a highly active water-reactive metal material for melting ice or snow, and belongs to the technical field of deicing. Background technique [0002] Road icing refers to precipitation, such as rain, snow, freezing rain, or fog droplets, when it hits the ground with a temperature below zero and the phenomenon of snow accumulation or icing occurs. It usually includes frozen residual snow, concave and convex ice ruts, snowmelt water or other reasons for road water to form a hard ice layer in the cold winter season. Road icing can be divided into two situations: one is that the road icing is formed immediately after snow falls; culprit. When the road is icy, because the friction between the wheels and the road surface is greatly weakened, it is easy to slip, and the car cannot be braked, resulting in traffic accidents. Pedestrians are also prone to slipping and causing falls. At the beginning of 2008, rain, sn...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K3/18
Inventor 杨荣杰邹美帅郭晓燕
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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