Environment friendly type snow melt agent

Abstract

The invention relates to an environment friendly type snow melt agent, which comprises sodium chloride serving as a main component and various additives of sodium citrate, sodium dihydrogen phosphate, sodium metasilicate, urea, sodium carboxymethyl cellulose and the like, and may also comprises abscisic acid or indolylacetic acid or mixture thereof, sodium tartrate and humic acid or salt thereof. The snow melt agent of the invention has a high snow melt capacity and a wide application temperature range, is particular suitable for the ambient temperature of no less than 15 DEG C below zero and economy and environmental protection, and can effectively reduce the corrosion on metalized products and a concrete structure and effectively improve the anti-sallification ability of seeds, plants and soil. The invention also provides a method for using the snow melt agent. In the method, the finished product of the snow melt agent is unnecessarily prepared in advance, instead the main component and various additives are separately placed, and the snow melt agent is prepared in a construction site before using; therefore, the method can avoid the problems that the snow melt agent is wetted and hardened during storage and transportation, and also overcome the defects of high temperature energy consumption and possibly caused decomposition of additives in a process of preparing composite particles(such as coating granulation). The snow melt agent is simple in operation and low in cost and particularly suitable for mechanized spraying operation.

Description

technical field [0001] The invention relates to an environment-friendly deicing agent mainly composed of sodium chloride, which contains various additives. Background technique [0002] Snowfall and freezing in winter and spring often bring inconvenience to the city and transportation, and easily lead to traffic accidents. Especially, expressways are often closed due to snowfall and freezing, causing huge economic losses to the society. The use of deicing agents to remove road snow has the advantages of low cost, simple method, fast melting speed of ice and snow, and rapid traffic recovery, so it has been widely adopted by more and more countries. With the acceleration of my country's economic construction, the total mileage of my country's expressways ranks among the top in the world and is showing a momentum of rapid development. The "National Expressway Network Planning" pointed out that in the future, 44,000 kilometers of expressways will be built in my country. By then,...

AI Technical Summary

Problems solved by technology

[0004] At present, for the purpose of environmental protection, researchers at home and abroad have developed a variety of non-chlorine salt-type deicing agent products, but they cannot be popularized and used due to cost and technical reasons. Salt-type deicing agents, such as sodium chloride and magnesium chloride, are still the most widely used deicing materials in the United States