Method of producing solid snow-melting agent by utilizing waste marble

Abstract

The invention discloses a method of producing a solid snow-melting agent by utilizing waste marble, and belongs to the technical field of the preparation of a snow-melting agent. The method comprises the following steps: calcining the marble to oxidize calcium carbonate to be calcium oxide, then placing the calcium oxide and coke into a calcium carbide furnace, calcining at a high temperature to prepare calcium carbide, so that a purpose of removing snow is realized by utilizing the performance that a mixed powder of the calcium oxide and the coke can release a great amount of heat when meeting water, can rapidly melt the snow cover and are likely to dissolve in water to form a solution so as to reduce the freezing point of the water. The method has the beneficial effects that the solid snow-melting agent is low in cost, high in snow melting speed, harmless to the environment, and non-corrosive to road and large-sized public infrastructures, a residual product of molten snow can neutralize acidity and improve acidic soil and thus is favorable for the living of crops; by sufficiently adopting the waste marble to produce the solid snow-melting agent, waste is converted into treasure, and the sustainable utilization of resources is realized.

Description

technical field [0001] The invention relates to a method for producing solid deicing agent from waste marble, which belongs to the technical field of waste utilization. Background technique [0002] In the alpine regions of our country and many countries in the world, ice and snow in winter have become a serious public nuisance. The deep snow and smooth road surface have caused serious consequences such as traffic jams, accidents, highway outages, and airport closures; The use of deicing agents has become one of the effective ways to clear road snow. There are two main types of deicing agents, organic deicing agents and chlorine salt deicing agents. Organic deicing agents have no corrosive effect on infrastructure. It is used in a small amount in places such as golf courses and golf courses; the chloride salt deicing agent is widely used in snow melting in cities and highways; one type is an organic deicing agent with potassium acetate as the main component, which has a good...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention: Aiming at the drawbacks of the existing organic deicing agents which are too expensive, the chlorine salt deicing agents are serious in corrosion to roads and large-scale public infrastructures, and are harmful to the environment, a solid deicing agent produced from waste marble is provided. The snow melting agent produced by this method has low cost, fast snow melting speed, no harm to the environment, no corrosion to roads and large public infrastructure, and the use of waste marble to produce solid snow melting agent realizes sustainable utilization of resources