Compound chloride-based environment-friendly snowmelt agent

Abstract

The invention relates to a compound chloride-based environment-friendly snowmelt agent, which comprises a main component of a chloride mixture of calcium chloride dihydrate and magnesium chloride hexahydrate, contains various additives of sodium citrate, disodium hydrogen phosphate, sodium metasilicate, urea and the like and can contain abscisic acid or indoleacetic acid or a mixture thereof, sodium tartrate, humic acid or a salt thereof. The snowmelt agent in the invention can reduce the corrosivity to a metal object and a concrete structure effectively, improves the anti-salinization capabilities of a seed, a plant and soil, can be used when the temperature is as low as -25 DEG C, and solves the problems of bad snow melting effect caused by an autologous freezing point characteristic when a sodium chloride-based snowmelt agent is used and high cost caused by using an anhydrous calcium chloride-based snowmelt agent under the condition. The invention also provides a use method of the snowmelt agent, which places the main component and each additive separately without preparing a finished product of the snowmelt agent in advance and compounds the snowmelt agent on the spot before using. The method can avoid the problems of wetting, hardening and the like of the finished product of the snowmelt agent in the processes of storing and transporting, can avoid the defects of high-temperature energy consumption in the process of preparing compound granules (such as coating and granulating) and the capability of causing decomposition of the additives, has simple operations and a low cost, and is particularly suitable for on-site mechanical shed work.

Description

technical field [0001] The invention relates to an environment-friendly deicing agent, which is mainly composed of a mixed chlorine salt of calcium chloride dihydrate and magnesium chloride hexahydrate, and simultaneously 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 ...

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