1. A biological environment-friendly composite snow-melting agent is characterized in that: the snow-melting agent comprises the following raw materials in parts by weight: 75-85 parts of potassium formate, 10-18 parts of sodium acetate, 65-75 parts of magnesium chloride and 3-8 parts of corrosion inhibitor.

2. The biological environment-friendly composite snow melt agent as claimed in claim 1, wherein: the biological composite snow melting agent comprises, by weight, 80 parts of potassium formate, 15 parts of sodium acetate, 70 parts of magnesium chloride and 5 parts of a corrosion inhibitor.

3. The biological environment-friendly composite snow melt agent as claimed in claim 1, wherein: the corrosion inhibitor comprises the following raw materials in parts by weight: 45-55 parts of sodium hexametaphosphate, 15-25 parts of amino acid, 35-45 parts of sodium gluconate, 8-15 parts of trisodium citrate, 25-35 parts of sodium tartrate, 3-8 parts of thiourea, 18-22 parts of sodium malate and 18-22 parts of sodium glacial acetate.

4. The biological environment-friendly composite snow melt agent as claimed in claim 1, wherein: the corrosion inhibitor comprises the following raw materials in parts by weight: 50 parts of sodium hexametaphosphate, 20 parts of amino acid, 40 parts of sodium gluconate, 10 parts of trisodium citrate, 30 parts of sodium tartrate, 5 parts of thiourea, 20 parts of sodium malate and 20 parts of sodium glacial acetate.

5. A preparation method of a biological environment-friendly composite snow-melting agent is characterized by comprising the following steps: the method comprises the following steps: step one, according to the weight part of the raw materials of the snow-melting agent, 75-85 parts of potassium formate, 10-18 parts of sodium acetate and 65-75 parts of magnesium chloride are mixed and stirred uniformly, and the mixture is obtained after the stirring time is 10-15 minutes;

and step two, adding 3-8 parts of corrosion inhibitor into the mixed solution prepared in the step one, and continuously stirring for 10-15 minutes.

Background

Snowfall in cold areas at home and abroad brings great inconvenience to life and travel of people. And is very easy to induce traffic accidents. Particularly on the expressway, the expressway is forced to be closed and stopped due to accumulated snow or snow melting and icing, and great economic loss is caused. Therefore, how to rapidly remove snow and prevent freezing and ensure the rapid and smooth road has important economic and social significance undoubtedly.

At present, snow removing methods at home and abroad mainly comprise three types of manual snow removing, mechanical snow removing and snow melting agents, but the manual snow removing and the mechanical snow removing have low efficiency and are difficult to clean, and residual snow can be frozen again at low temperature. The snow-melting agent is sprayed, so that accumulated snow on a road can be quickly removed, the snow can be quickly and thoroughly melted, and the snow-melting agent becomes an indispensable part in snow removal and freeze prevention in winter and plays an important role.

The common snow-melting agent is chloride salt, especially sodium chloride, which has good performance of lowering the freezing point, sufficient supply of goods and low price, but the salt has corrosiveness to concrete and metal and harmfulness to plants and soil. When melting ice and snow, the road surface greening and vehicles are damaged. Therefore, technologists add the corrosion inhibitor into the chloride salt snow melting agent, and the chloride ion concentration is higher although the corrosion is inhibited to a certain extent. Most of the corrosion inhibitor is nitrite, and can only be used for reinforced concrete bridges, and once soil is infiltrated, groundwater can be polluted, and the traditional environment-friendly snow-melting agent uses calcium magnesium acetate as a main component, and has the characteristics of no pollution and environmental protection, but the snow-removing effect is greatly influenced by the environmental temperature, the snow-melting efficiency is lower, the price is high, and the traditional environment-friendly snow-melting agent is generally only used in important places such as airports, large squares and the like. Therefore, the development of a novel snow-melting agent which is environment-friendly, efficient and appropriate in price has important significance and application and popularization value.

Therefore, in order to solve the problem of residual snow, the application researches and invents a novel environment-friendly snow-melting agent.

Disclosure of Invention

The invention aims to provide a biological environment-friendly composite snow-melting agent, which not only reduces the corrosion speed of the snow-melting agent, but also reduces the environmental pollution because of containing an amino compound capable of being used as a nitrogen fertilizer and can bring high yield and harvest for farmers and herdsmen by adding a corrosion inhibitor into the snow-melting agent.

In order to achieve the purpose, the invention provides the following technical scheme: a biological environment-friendly composite snow-melting agent comprises the following raw materials in parts by weight: 75-85 parts of potassium formate, 10-18 parts of sodium acetate, 65-75 parts of magnesium chloride and 3-8 parts of corrosion inhibitor.

Further preferably, the biological composite snow melting agent comprises the following raw materials, by weight, 80 parts of potassium formate, 15 parts of sodium acetate, 70 parts of magnesium chloride and 5 parts of a corrosion inhibitor.

Preferably, the corrosion inhibitor comprises the following raw materials in parts by weight: 45-55 parts of sodium hexametaphosphate, 15-25 parts of amino acid, 35-45 parts of sodium gluconate, 8-15 parts of trisodium citrate, 25-35 parts of sodium tartrate, 3-8 parts of thiourea, 18-22 parts of sodium malate and 18-22 parts of sodium glacial acetate.

Further preferably, the corrosion inhibitor comprises the following raw materials in parts by weight: 50 parts of sodium hexametaphosphate, 20 parts of amino acid, 40 parts of sodium gluconate, 10 parts of trisodium citrate, 30 parts of sodium tartrate, 5 parts of thiourea, 20 parts of sodium malate and 20 parts of sodium glacial acetate.

A preparation method of a biological environment-friendly composite snow-melting agent comprises the following steps: step one, according to the weight part of the raw materials of the snow-melting agent, 75-85 parts of potassium formate, 10-18 parts of sodium acetate and 65-75 parts of magnesium chloride are mixed and stirred uniformly, and the mixture is obtained after the stirring time is 10-15 minutes;

and step two, adding 3-8 parts of corrosion inhibitor into the mixed solution prepared in the step one, and continuously stirring for 10-15 minutes.

Compared with the prior art, the invention has the beneficial effects that: the corrosion inhibitor is added into the snow-melting agent, so that the corrosion speed of the snow-melting agent is reduced, the snow-melting agent contains an amino compound capable of being used as a nitrogen fertilizer, the pollution to the environment is reduced, and the high yield and the high harvest can be achieved for farmers and herdsmen.

Drawings

FIG. 1 is a flow chart of the preparation of the biological composite snow-melting agent of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

Referring to fig. 1, a preparation method of a biological environment-friendly composite snow-melting agent comprises the following steps: step one, mixing 75 parts of potassium formate, 10 parts of sodium acetate and 65 parts of magnesium chloride uniformly according to the weight part ratio of the snow-melting agent, wherein the mixing time is 10 minutes to obtain a mixed solution;

and step two, adding 3 parts of corrosion inhibitor into the mixed solution prepared in the step one, and continuously stirring for 10 minutes.

Example 2

Referring to fig. 1, a preparation method of a biological environment-friendly composite snow-melting agent comprises the following steps: step one, according to the weight part of the raw materials of the snow-melting agent, 85 parts of potassium formate, 18 parts of sodium acetate and 75 parts of magnesium chloride are mixed and stirred uniformly, and the mixture is obtained after the stirring time is 15 minutes;

and step two, adding 8 parts of corrosion inhibitor into the mixed solution prepared in the step one, and continuously stirring for 15 minutes.

Example 3

Referring to fig. 1, a preparation method of a biological environment-friendly composite snow-melting agent comprises the following steps: step one, according to the weight part of the raw materials of the snow-melting agent, 80 parts of potassium formate, 15 parts of sodium acetate and 70 parts of magnesium chloride,

uniformly mixing and stirring the mixture for 12 minutes to obtain a mixed solution;

and step two, adding 5 parts of corrosion inhibitor into the mixed solution prepared in the step one, and continuously stirring for 13 minutes.

Comparative example 1: the corrosion inhibitor of example 1 was removed and the other preparation methods were the same as example 1.

Comparative example 2: the corrosion inhibitor in example 2 was removed and the other preparation methods were the same as in example 2.

Comparative example 3: the corrosion inhibitor of example 3 was removed and the other preparation methods were the same as example 3.

Examples of the experiments

A plant root irrigation experiment was performed on the biological environment-friendly composite snow-melting agent prepared in the above examples 1 to 3 and comparative examples 1 to 3, respectively;

the experimental method comprises the following steps: after the snow-melting agent prepared in examples 1-3 and the snow-melting agent prepared in comparative examples 1-3 were mixed with clear water at a ratio of 1:1, 50 small trees were each subjected to root irrigation for 5 days continuously, and the growth of the small trees was observed after 10 days.

The results are reported in table 1 below.

TABLE 1

Numbering	After 10 days, the small tree survives	Relative damage ratio of treelets%
			Example 1	50	0%
Example 2	50	0%
			Example 3	50	0%
Comparative example 1	35	30%
			Comparative example 2	38	24%
Comparative example 3	36	28%

Therefore, the snow-melting agent prepared in the examples 1 to 3 of the present application has no influence on the growth and development of plants.

The snow-melting agents of examples 1 to 3 of the present invention were compared with the snow-melting agents prepared in comparative examples 1 to 3 in terms of snow-melting effect, and 6 groups of glasses were filled with 100g of water and frozen at a laboratory temperature of-15 ℃, and 20g of the snow-melting agents prepared in examples 1 to 3 and comparative examples 1 to 3 were placed in the frozen glasses, respectively, and the ice layer state in the glasses was observed within 20 minutes.

The results are shown in Table 2

TABLE 2

Numbering	Ice layer state for 10 minutes	Ice layer state for 15 minutes	Ice layer state for 20 minutes
				Example 1	Half melted ice layer	Two thirds of the ice layer melts	All melt into water
Example 2	Half melted ice layer	Two thirds of the ice layer melts	All melt into water
				Example 3	Half melted ice layer	Two thirds of the ice layer melts	All melt into water
Comparative example 1	Micro fusion	One third of the ice layer melts	Half melted ice layer
				Comparative example 2	Micro fusion	One third of the ice layer melts	Half melted ice layer
Comparative example 3	Micro fusion	One third of the ice layer melts	Half melted ice layer

It can be seen that the snow-melting agents prepared in examples 1 to 3 of the present application were less effective and had excellent snow-melting effects as compared with the comparative example snow-melting agents.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.