CN110982491A - Efficient composite additive of coal transportation antifreezing agent - Google Patents
Efficient composite additive of coal transportation antifreezing agent Download PDFInfo
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- CN110982491A CN110982491A CN201911304608.2A CN201911304608A CN110982491A CN 110982491 A CN110982491 A CN 110982491A CN 201911304608 A CN201911304608 A CN 201911304608A CN 110982491 A CN110982491 A CN 110982491A
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- China
- Prior art keywords
- coal
- coal transportation
- composite additive
- antifreezing
- transportation
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- 239000003245 coal Substances 0.000 title claims abstract description 63
- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 33
- 239000000654 additive Substances 0.000 title claims abstract description 20
- 230000000996 additive effect Effects 0.000 title claims abstract description 19
- 239000002131 composite material Substances 0.000 title claims abstract description 17
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims abstract description 27
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims abstract description 16
- 239000002202 Polyethylene glycol Substances 0.000 claims abstract description 8
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000012964 benzotriazole Substances 0.000 claims abstract description 8
- 229920001223 polyethylene glycol Polymers 0.000 claims abstract description 8
- 229910000029 sodium carbonate Inorganic materials 0.000 claims abstract description 8
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims abstract description 7
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000004327 boric acid Substances 0.000 claims abstract description 7
- 229940051841 polyoxyethylene ether Drugs 0.000 claims abstract description 7
- 229920000056 polyoxyethylene ether Polymers 0.000 claims abstract description 7
- 229910052938 sodium sulfate Inorganic materials 0.000 claims abstract description 7
- 235000011152 sodium sulphate Nutrition 0.000 claims abstract description 7
- 238000003756 stirring Methods 0.000 claims abstract description 5
- 238000005303 weighing Methods 0.000 claims abstract description 5
- 238000002156 mixing Methods 0.000 claims abstract description 3
- 239000002994 raw material Substances 0.000 claims abstract 2
- 239000000463 material Substances 0.000 claims description 6
- 230000002528 anti-freeze Effects 0.000 claims description 5
- 238000011049 filling Methods 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims 1
- 238000007710 freezing Methods 0.000 abstract description 12
- 230000008014 freezing Effects 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract description 7
- 150000003839 salts Chemical class 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000003860 storage Methods 0.000 abstract description 6
- 239000000853 adhesive Substances 0.000 abstract description 5
- 230000001070 adhesive effect Effects 0.000 abstract description 5
- 230000007797 corrosion Effects 0.000 abstract description 5
- 238000005260 corrosion Methods 0.000 abstract description 5
- 238000005507 spraying Methods 0.000 abstract description 5
- 229910017053 inorganic salt Inorganic materials 0.000 abstract description 3
- 231100000956 nontoxicity Toxicity 0.000 abstract description 3
- 229920005862 polyol Polymers 0.000 abstract description 2
- 150000003077 polyols Chemical class 0.000 abstract description 2
- 125000001309 chloro group Chemical class Cl* 0.000 abstract 1
- 150000001804 chlorine Chemical class 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 4
- 239000001110 calcium chloride Substances 0.000 description 4
- 229910001628 calcium chloride Inorganic materials 0.000 description 4
- LPXPTNMVRIOKMN-UHFFFAOYSA-M sodium nitrite Chemical compound [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 description 4
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 3
- 239000000460 chlorine Substances 0.000 description 3
- 229910052801 chlorine Inorganic materials 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 2
- 239000004280 Sodium formate Substances 0.000 description 2
- 239000004202 carbamide Substances 0.000 description 2
- 239000003085 diluting agent Substances 0.000 description 2
- ULSIYEODSMZIPX-UHFFFAOYSA-N phenylethanolamine Chemical compound NCC(O)C1=CC=CC=C1 ULSIYEODSMZIPX-UHFFFAOYSA-N 0.000 description 2
- HLBBKKJFGFRGMU-UHFFFAOYSA-M sodium formate Chemical compound [Na+].[O-]C=O HLBBKKJFGFRGMU-UHFFFAOYSA-M 0.000 description 2
- 235000019254 sodium formate Nutrition 0.000 description 2
- 235000010288 sodium nitrite Nutrition 0.000 description 2
- 238000010257 thawing Methods 0.000 description 2
- HJVAFZMYQQSPHF-UHFFFAOYSA-N 2-[bis(2-hydroxyethyl)amino]ethanol;boric acid Chemical compound OB(O)O.OCCN(CCO)CCO HJVAFZMYQQSPHF-UHFFFAOYSA-N 0.000 description 1
- 239000005662 Paraffin oil Substances 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 235000013877 carbamide Nutrition 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 235000011187 glycerol Nutrition 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 229910001629 magnesium chloride Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 229950006768 phenylethanolamine Drugs 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Classifications
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
Abstract
An efficient composite additive of a coal transportation anti-freezing agent belongs to the technical field of coal additives. The composite additive is an efficient composite additive which takes organic salt, inorganic salt and polyol as main components and is used as an antifreezing agent for coal transportation. The method comprises the following steps of weighing, stirring and mixing glycerol, fatty alcohol-polyoxyethylene ether sodium sulfate, sodium carbonate, boric acid, polyethylene glycol and benzotriazole as raw materials to obtain the product. The invention can improve the antifreezing and unfreezing capability of the coal transportation antifreezing agent, reduce the freezing strength of the coal, increase the adhesive force of finished products, relieve the corrosion of equipment such as train carriages, production, storage, spraying and the like, has no pollution and no toxicity, has simple process and convenient use, has no influence on the downstream utilization of the coal quality, and can be directly added into various coal transportation antifreezing agents such as chlorine salt, organic salt and the like.
Description
Technical Field
The invention relates to a high-efficiency composite additive which takes organic salt, inorganic salt and polyalcohol as main components and is used as an antifreezing agent for coal transportation.
Background
After coal is washed and selected, the residual moisture content in the coal is high, free water is gradually concentrated to the bottom of a coal layer in the process of coal storage or transportation, the coal, the water and the bottom of a transportation carriage at the bottom of the coal layer can be frozen together in cold winter, and the frozen coal amount accounts for 7% -14% of the coal loading amount of each carriage when no antifreezing agent is used. The frozen coal is difficult to load and unload, which causes the problems of pressing vehicles, pressing lines or pressing ports and influences the normal production and the turnover of train wagons. A plurality of methods are adopted at home and abroad to solve the problem of frozen coal unloading, such as vibration, blasting, electric heating, thawing warehouse, adding calcium chloride and magnesium chloride in coal, coating paraffin and diesel oil on a vehicle body, and the like, but the thawing cost and effect are not ideal. At present, in China, various coal mine enterprises adopt calcium chloride type antifreeze to relieve the problem of frozen coal in coal transportation in winter, calcium chloride powder is scattered at the bottom of a carriage, calcium chloride diluent with certain concentration is sprayed on the side wall of the carriage, the freezing point of a contact area between coal and the carriage wall is lowered, and coal freezing is prevented.
At present, the antifreezing agent for coal transportation on the market has limited antifreezing and unfreezing capabilities, and particularly has undesirable use effect in severe cold areas; in addition, chlorine salt type coal transportation antifreezing agents are mainly used by coal mine enterprises in China, and because of containing a large amount of chlorine elements, new problems are brought to export and utilization of coal, and when the using amount of the chlorine-containing coal antifreezing agents reaches a certain concentration, the chlorine-containing coal antifreezing agents can corrode train carriages, production, storage and spraying equipment; in addition, the viscosity of the chlorine salt diluent is very low, the adhesive force is low, and the efficiency of preventing coal from freezing is not high.
Therefore, the efficient composite additive is introduced into the railway coal transportation antifreezing agent, so that the antifreezing and unfreezing capabilities of the coal transportation antifreezing agent are improved, the freezing strength of coal is reduced, the adhesive force of a finished product is increased, the corrosion of equipment such as train carriages, production, storage, spraying and the like is relieved, and the method has important significance.
The efficient composite additive for the coal transportation antifreezing agent has the advantages of no pollution, no toxicity, simple process, convenient use and no influence on downstream utilization of coal quality, and can be directly added into various coal transportation antifreezing agents such as chlorine salt, organic salt and the like.
Disclosure of Invention
The invention aims to provide a high-efficiency composite additive of a coal transportation antifreezing agent taking organic salt, inorganic salt and polyol as main components and a preparation method thereof, aiming at overcoming the defects of the existing domestic and foreign market products, improving the antifreezing and unfreezing capability of the coal transportation antifreezing agent, reducing the freezing strength of coal, increasing the adhesive force of a finished product, relieving the corrosion of equipment such as train carriages, production, storage, spraying and the like, and directly adding the composite additive into various types of coal transportation antifreezing agents such as chlorine salt, organic salt and the like.
The purpose of the invention is realized by the following technical scheme: the invention relates to a high-efficiency composite additive of a coal transportation antifreezing agent, which mainly comprises the following substances (in percentage by weight): 55-66% of glycerol; 15-25% of fatty alcohol-polyoxyethylene ether sodium sulfate; 5-12% of sodium carbonate; 5-12% of boric acid; 5-8% of polyethylene glycol; 2-5% of benzotriazole.
Weighing the materials, sequentially putting the materials into a reaction kettle according to the weight ratio of glycerol, fatty alcohol-polyoxyethylene ether sodium sulfate, polyethylene glycol, sodium carbonate, boric acid and benzotriazole, stirring at room temperature for more than 30min, and uniformly mixing to obtain a finished product.
The invention can improve the antifreezing and unfreezing capability of the coal transportation antifreezing agent, reduce the freezing strength of the coal, increase the adhesive force of finished products, relieve the corrosion of equipment such as train carriages, production, storage, spraying and the like, has no pollution and no toxicity, has simple process and convenient use, has no influence on the downstream utilization of the coal quality, and can be directly added into various coal transportation antifreezing agents such as chlorine salt, organic salt and the like.
Detailed Description
The present invention is further illustrated by the following examples, but the present invention is not limited to the following examples.
Example 1
Weighing materials according to the using amount ratio (mass percentage), sequentially putting 55% of glycerol, 15% of fatty alcohol-polyoxyethylene ether sodium sulfate, 8% of polyethylene glycol, 10% of sodium carbonate, 10% of boric acid and 2% of benzotriazole into a reaction kettle, uniformly stirring at room temperature, and filling products to obtain the coal transportation anti-freezing agent efficient composite additive.
Example 2
Weighing the materials according to the using amount ratio (mass percentage), sequentially putting 60% of glycerol, 10% of fatty alcohol-polyoxyethylene ether sodium sulfate, 5% of polyethylene glycol, 11% of sodium carbonate, 12% of boric acid and 3% of benzotriazole into a reaction kettle, uniformly stirring at room temperature, and filling the product to obtain the coal transportation anti-freezing agent efficient composite additive.
The composite additive obtained by the invention is added into the chlorine-free railway coal transportation antifreezing agent disclosed in the published patent application 201910400083.6 for performance test, and has good effect. A chlorine-free railway coal transportation antifreezing agent comprises the following components in percentage by weight: 20-28% of sodium formate; 5-15% of glycerol; 8-10% of urea; 7-8% of sodium nitrite; 2-3% of sodium carbonate; 2-3% of triethanolamine borate; 1-2% of phenylethanolamine; 1-2% of polyethylene glycol; 0.1-1% of benzotriazole; 40-50% of water.
Effects of the implementation
The high-efficiency composite additive prepared in the embodiments 1 and 2 is added into a chlorine-free railway coal transportation antifreezing agent which takes sodium nitrite, sodium formate, urea, glycerol and ethylene glycol as main components (the specific composition of the antifreezing agent is shown in the embodiment 1 in the published patent application 201910400083.6) (the mass percentage content of the composite additive is 5 percent, namely the addition amount is 5 percent), so that chlorine-free railway coal transportation antifreezing agent samples 1 and 2 are obtained, the freezing point, the low-temperature stability and the metal corrosion rate of the chlorine-free railway coal transportation antifreezing agent samples 1 and 2 are measured, the results are shown in the table 1, the chlorine-free railway coal transportation antifreezing agent samples 1 and 2 have excellent low-temperature performance and stability, the coal freezing strength is obviously reduced, and the chlorine-free railway coal transportation antifreezing agent has an obvious adhesion effect on the surface of a carriage.
TABLE 1 chlorine-free railway coal transport antifreeze samples 1, 2 Performance indices
Claims (3)
1. The efficient composite additive for the coal transportation antifreezing agent is characterized by comprising the following main raw materials in percentage by weight: 55-66% of glycerol; 15-25% of fatty alcohol-polyoxyethylene ether sodium sulfate; 5-12% of sodium carbonate; 5-12% of boric acid; 5-8% of polyethylene glycol; 2-5% of benzotriazole; the total weight of the powder is 100 percent.
2. The preparation method of the coal transportation antifreeze high-efficiency compound additive as claimed in claim 1, is characterized by comprising the following steps: weighing materials, sequentially putting the materials into a reaction kettle according to glycerol, fatty alcohol-polyoxyethylene ether sodium sulfate, polyethylene glycol, sodium carbonate, boric acid and benzotriazole, stirring at room temperature for more than 30min, mixing uniformly, and filling the product.
3. The use of the high efficiency complex additive for coal transportation antifreeze of claim 1, which is used for direct addition to various types of coal transportation antifreeze.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911304608.2A CN110982491A (en) | 2019-12-17 | 2019-12-17 | Efficient composite additive of coal transportation antifreezing agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911304608.2A CN110982491A (en) | 2019-12-17 | 2019-12-17 | Efficient composite additive of coal transportation antifreezing agent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110982491A true CN110982491A (en) | 2020-04-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911304608.2A Pending CN110982491A (en) | 2019-12-17 | 2019-12-17 | Efficient composite additive of coal transportation antifreezing agent |
Country Status (1)
| Country | Link |
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| CN (1) | CN110982491A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112251195A (en) * | 2020-11-03 | 2021-01-22 | 浙江浙能技术研究院有限公司 | Chlorine-free coal transportation and storage antifreezing agent |
| CN114395372A (en) * | 2022-01-26 | 2022-04-26 | 煤炭科学技术研究院有限公司 | Chlorine-free environment-friendly coal conveying antifreezing agent and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105601159A (en) * | 2015-12-27 | 2016-05-25 | 青岛宏宇环保空调设备有限公司 | Improved concrete antifreezer |
| CN109370521A (en) * | 2018-12-12 | 2019-02-22 | 神木市锦界安顺煤矿机电修造有限公司 | Railway transportation coal oiliness antifreezing agent |
| CN110028933A (en) * | 2019-05-14 | 2019-07-19 | 煤炭科学技术研究院有限公司 | A kind of no chlorine Railway Coal transport antifreezing agent |
-
2019
- 2019-12-17 CN CN201911304608.2A patent/CN110982491A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105601159A (en) * | 2015-12-27 | 2016-05-25 | 青岛宏宇环保空调设备有限公司 | Improved concrete antifreezer |
| CN109370521A (en) * | 2018-12-12 | 2019-02-22 | 神木市锦界安顺煤矿机电修造有限公司 | Railway transportation coal oiliness antifreezing agent |
| CN110028933A (en) * | 2019-05-14 | 2019-07-19 | 煤炭科学技术研究院有限公司 | A kind of no chlorine Railway Coal transport antifreezing agent |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112251195A (en) * | 2020-11-03 | 2021-01-22 | 浙江浙能技术研究院有限公司 | Chlorine-free coal transportation and storage antifreezing agent |
| CN114395372A (en) * | 2022-01-26 | 2022-04-26 | 煤炭科学技术研究院有限公司 | Chlorine-free environment-friendly coal conveying antifreezing agent and preparation method thereof |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200410 |
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