CN112358850A - Preparation method of environment-friendly snow-melting agent - Google Patents
Preparation method of environment-friendly snow-melting agent Download PDFInfo
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- CN112358850A CN112358850A CN202011266669.7A CN202011266669A CN112358850A CN 112358850 A CN112358850 A CN 112358850A CN 202011266669 A CN202011266669 A CN 202011266669A CN 112358850 A CN112358850 A CN 112358850A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K3/00—Materials not provided for elsewhere
- C09K3/18—Materials not provided for elsewhere for application to surfaces to minimize adherence of ice, mist or water thereto; Thawing or antifreeze materials for application to surfaces
- C09K3/185—Thawing materials
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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- Combustion & Propulsion (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Materials Applied To Surfaces To Minimize Adherence Of Mist Or Water (AREA)
Abstract
The invention relates to a preparation method of an environment-friendly snow-melting agent, which specifically comprises the following steps: 1) weighing the following raw materials in parts by weight: 3-8 parts of aluminum powder, 60-80 parts of calcium oxide powder and 20-30 parts of potassium chloride; 2) the raw materials are added into a blender to be blended and stirred evenly, and then a finished product of the environment-friendly snow-melting agent is obtained by filtering and packaging the mixture by a 250-mesh filter screen. The invention has the advantages that: the environment-friendly snow-melting agent prepared by the invention has the advantages of high snow-melting speed, energy conservation, environmental protection, low freezing point, difficulty in secondary icing, greatly reduced damage to the environment compared with the common snow-melting agent, prolonged service life of roads, relatively low price and good popularization prospect.
Description
Technical Field
The invention relates to a preparation method of an environment-friendly snow-melting agent.
Background
The snow melting agent can reduce the melting temperature of ice and snow, melt snow on roads in a short time and facilitate the dredging of the roads. The snow-melting agent can be used for melting snow and ice, and can be used for replacing salt to be mainly used for removing snow and ice in facilities such as urban roads, expressways, airports, ports, bridges and the like. The snow-melting agent is composed of four types of common snow-melting agents, namely sodium chloride, calcium chloride, magnesium chloride, potassium chloride and the like, and the performance comparison sequence of the four types of common snow-melting agents is as follows: 1. corrosiveness to Metal: 100% of sodium chloride, 50-70% of calcium chloride, 40-60% of magnesium chloride, and 5-20% of potassium chloride. 2. Corrosiveness to cement (250 freeze-thaw): the strong destruction of sodium chloride by 100 percent, the strong destruction of calcium chloride by 25 percent, the strong destruction of magnesium chloride by 5 percent, the slight destruction of potassium chloride by 1 percent. 3. Impact on soil: soil hardening caused by sodium chloride, soil slight hardening caused by calcium chloride, soil influence caused by magnesium chloride is small, and alkaline soil is improved by potassium chloride. 4. Impact on groundwater: the sodium chloride has a larger influence on human body, the calcium chloride has a smaller influence on human body, the magnesium chloride has no harm to human body, and the potassium chloride has no harm to human body. 5. Low freezing point: sodium chloride at-21 ℃ and over magnesium chloride at-33 ℃ and over calcium chloride at-50 ℃ and over potassium chloride at-60 ℃. 6. Snow melting speed: sodium chloride 100% < magnesium chloride 150% < calcium chloride 150% < potassium chloride 200%. 7. The suitable working temperature is as follows: sodium chloride at-1 deg.C to-10 deg.C, calcium chloride at-1 deg.C to-30 deg.C, magnesium chloride at-1 deg.C to-20 deg.C, and potassium chloride at-1 deg.C to-40 deg.C. 8. Hold time (snow spray): sodium chloride is less than 1 day and less than 1-2 days of calcium chloride and less than 2-3 days of magnesium chloride and less than 4-7 days of potassium chloride.
Disclosure of Invention
The invention aims to provide a preparation method of an environment-friendly snow-melting agent, which aims to solve the problems in the background technology.
In order to solve the technical problems, the technical scheme provided by the invention is as follows: a preparation method of an environment-friendly snow-melting agent specifically comprises the following steps:
1) weighing the following raw materials in parts by weight: 3-8 parts of aluminum powder, 60-80 parts of calcium oxide powder and 20-30 parts of potassium chloride;
2) the raw materials are added into a blender to be blended and stirred evenly, and then a finished product of the environment-friendly snow-melting agent is obtained by filtering and packaging the mixture by a 250-mesh filter screen.
2. The method for preparing the environment-friendly snow melt agent as claimed in claim 1, wherein the method for preparing calcium oxide in the step 1) comprises the following steps: crushing natural limestone, filtering with a 100-mesh filter screen, taking 1000g, and calcining at 800 ℃ in a muffle furnace for 1 hour to obtain calcium oxide powder.
As a preferred scheme, the main component of the natural limestone is calcium carbonate, and the natural limestone comprises the following elements in percentage by weight: 64.99% of oxygen, 0.34% of magnesium, 0.65% of silicon, 32.45% of calcium and 1.58% of iron.
As a preferred scheme, the raw materials in the step 1) are weighed according to the parts by weight: 3 parts of aluminum powder, 80 parts of calcium oxide powder and 20 parts of potassium chloride.
As a preferred scheme, the raw materials in the step 1) are weighed according to the parts by weight: 8 parts of aluminum powder, 60 parts of calcium oxide powder and 30 parts of potassium chloride.
As a preferred scheme, the raw materials in the step 1) are weighed according to the parts by weight: 5 parts of aluminum powder, 70 parts of calcium oxide powder and 25 parts of potassium chloride.
The invention has the advantages that: the environment-friendly snow-melting agent prepared by the invention has the advantages of high snow-melting speed, energy conservation, environmental protection, low freezing point, difficulty in secondary icing, greatly reduced damage to the environment compared with the common snow-melting agent, prolonged service life of roads, relatively low price and good popularization prospect.
Detailed Description
The invention is illustrated below by means of specific examples, without being restricted thereto.
Example 1
A preparation method of an environment-friendly snow-melting agent specifically comprises the following steps:
1) weighing the following raw materials in parts by weight: 3 parts of aluminum powder, 80 parts of calcium oxide powder and 20 parts of potassium chloride;
2) the raw materials are added into a blender to be blended and stirred evenly, and then a finished product of the environment-friendly snow-melting agent is obtained by filtering and packaging the mixture by a 250-mesh filter screen.
The preparation method of the calcium oxide in the step 1) comprises the following steps: crushing natural limestone, filtering with a 100-mesh filter screen, taking 1000g, and calcining at 800 ℃ in a muffle furnace for 1 hour to obtain calcium oxide powder. The main component of the natural limestone is calcium carbonate, and the natural limestone comprises the following elements in percentage: 64.99% of oxygen, 0.34% of magnesium, 0.65% of silicon, 32.45% of calcium and 1.58% of iron.
Example 2
A preparation method of an environment-friendly snow-melting agent specifically comprises the following steps:
1) weighing the following raw materials in parts by weight: 8 parts of aluminum powder, 60 parts of calcium oxide powder and 30 parts of potassium chloride;
2) the raw materials are added into a blender to be blended and stirred evenly, and then a finished product of the environment-friendly snow-melting agent is obtained by filtering and packaging the mixture by a 250-mesh filter screen.
The preparation method of the calcium oxide in the step 1) comprises the following steps: crushing natural limestone, filtering with a 100-mesh filter screen, taking 1000g, and calcining at 800 ℃ in a muffle furnace for 1 hour to obtain calcium oxide powder. The main component of the natural limestone is calcium carbonate, and the natural limestone comprises the following elements in percentage: 64.99% of oxygen, 0.34% of magnesium, 0.65% of silicon, 32.45% of calcium and 1.58% of iron.
Example 3
A preparation method of an environment-friendly snow-melting agent specifically comprises the following steps:
1) weighing the following raw materials in parts by weight: 5 parts of aluminum powder, 70 parts of calcium oxide powder and 25 parts of potassium chloride;
2) the raw materials are added into a blender to be blended and stirred evenly, and then a finished product of the environment-friendly snow-melting agent is obtained by filtering and packaging the mixture by a 250-mesh filter screen.
The preparation method of the calcium oxide in the step 1) comprises the following steps: crushing natural limestone, filtering with a 100-mesh filter screen, taking 1000g, and calcining at 800 ℃ in a muffle furnace for 1 hour to obtain calcium oxide powder. The main component of the natural limestone is calcium carbonate, and the natural limestone comprises the following elements in percentage: 64.99% of oxygen, 0.34% of magnesium, 0.65% of silicon, 32.45% of calcium and 1.58% of iron.
The invention utilizes natural limestone as raw material to self-prepare calcium oxide, thus reducing cost, and the snow-melting agent has the advantages of high snow-melting speed, energy saving, environmental protection, low freezing point, difficult secondary icing, greatly reduced damage to environment compared with common snow-melting agents, prolonged service life of roads and relatively low price. The aluminum powder is light in weight, high in floating force, strong in covering force and good in light and heat reflection performance, the heat transfer layer is formed when the snow melting agent melts ice and snow, calcium oxide is alkaline oxide, is sensitive to humidity, is easy to absorb moisture from ice and snow, reacts with water to generate calcium hydroxide and generate a large amount of heat, the snow melting agent is a main material for melting ice and snow, and the potassium chloride is low in freezing point and is not easy to freeze for the second time, so that the ice and snow can continuously react with the potassium chloride, and the use of the snow melting agent is ensured to be pollution-free.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (6)
1. The preparation method of the environment-friendly snow-melting agent is characterized by comprising the following steps:
1) weighing the following raw materials in parts by weight: 3-8 parts of aluminum powder, 60-80 parts of calcium oxide powder and 20-30 parts of potassium chloride;
2) the raw materials are added into a blender to be blended and stirred evenly, and then a finished product of the environment-friendly snow-melting agent is obtained by filtering and packaging the mixture by a 250-mesh filter screen.
2. The method for preparing the environment-friendly snow melt agent as claimed in claim 1, wherein the method for preparing calcium oxide in the step 1) comprises the following steps: crushing natural limestone, filtering with a 100-mesh filter screen, taking 1000g, and calcining at 800 ℃ in a muffle furnace for 1 hour to obtain calcium oxide powder.
3. The method for preparing an environment-friendly snow melt agent as claimed in claim 2, wherein the natural limestone comprises calcium carbonate as a main component, and the natural limestone comprises the following elements in percentage by weight: 64.99% of oxygen, 0.34% of magnesium, 0.65% of silicon, 32.45% of calcium and 1.58% of iron.
4. The preparation method of the environment-friendly snow melt agent as claimed in any one of claims 1 to 3, wherein the raw materials in the step 1) are weighed according to parts by weight: 3 parts of aluminum powder, 80 parts of calcium oxide powder and 20 parts of potassium chloride.
5. The preparation method of the environment-friendly snow melt agent as claimed in any one of claims 1 to 3, wherein the raw materials in the step 1) are weighed according to parts by weight: 8 parts of aluminum powder, 60 parts of calcium oxide powder and 30 parts of potassium chloride.
6. The preparation method of the environment-friendly snow melt agent as claimed in any one of claims 1 to 3, wherein the raw materials in the step 1) are weighed according to parts by weight: 5 parts of aluminum powder, 70 parts of calcium oxide powder and 25 parts of potassium chloride.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011266669.7A CN112358850A (en) | 2020-11-13 | 2020-11-13 | Preparation method of environment-friendly snow-melting agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011266669.7A CN112358850A (en) | 2020-11-13 | 2020-11-13 | Preparation method of environment-friendly snow-melting agent |
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| Publication Number | Publication Date |
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| CN112358850A true CN112358850A (en) | 2021-02-12 |
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| CN202011266669.7A Withdrawn CN112358850A (en) | 2020-11-13 | 2020-11-13 | Preparation method of environment-friendly snow-melting agent |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114084348A (en) * | 2021-11-22 | 2022-02-25 | 西安热工研究院有限公司 | Microwave deicing system and method for wind power blade |
-
2020
- 2020-11-13 CN CN202011266669.7A patent/CN112358850A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114084348A (en) * | 2021-11-22 | 2022-02-25 | 西安热工研究院有限公司 | Microwave deicing system and method for wind power blade |
| CN114084348B (en) * | 2021-11-22 | 2024-03-29 | 西安热工研究院有限公司 | Microwave deicing method for wind power blade |
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Application publication date: 20210212 |
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