CN103820081B - A kind of Snow Agent - Google Patents
A kind of Snow Agent Download PDFInfo
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- CN103820081B CN103820081B CN201410071987.6A CN201410071987A CN103820081B CN 103820081 B CN103820081 B CN 103820081B CN 201410071987 A CN201410071987 A CN 201410071987A CN 103820081 B CN103820081 B CN 103820081B
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Abstract
The invention discloses a kind of Snow Agent, its composition comprises (weight percent) low molecule organic polyhydric alcohol: 30-60%, trolamine: 0.8-1.2%, chelate of metal ion or its esters: 0.1-1%, Starso: 0.2-0.4%, benzotriazole: 0.1-1%, SODIUM PHOSPHATE, MONOBASIC: 0.2-0.5%, water: 30%-70%.This Snow Agent adopts the organic and inorganic formula that combines, by the mixture of two or three alcohol in ethylene glycol, propylene glycol, ethanol, water and the composite corrosion inhibitor be made up of trolamine, chelate of metal ion or its esters, Starso, benzotriazole, SODIUM PHOSPHATE, MONOBASIC are formed, its freezing point reaches less than-40 DEG C, and melting ice and snow effect is more remarkable.
Description
Technical field
The present invention relates to Snow Agent field.
Background technology
Track switch is the important component part of railway station transportation equipment, when Winter Snow, when particularly avenging larger, as cleaned track switch accumulated snow not in time or cleaning not thorough, easily cause point tongue most advanced and sophisticated not closely connected with stock rail, to directly affect the sending and receiving operation of train, even cause the interruption of transportation by railroad.
In order to solve the freezing of snow sky track switch, accumulated snow problem, all carried out large quantifier elimination both at home and abroad, railroad switch snow removal mainly contains following several mode: electrothermic type, gas heating type, hot air type, compressed air type, blowtorch heating-type, warm water jet-type, Warm water circulation formula and Snow Agent.But because 1. electrothermic type railroad switch snow removal system power consumption is comparatively large, bring the problems such as power expansion in large standing-meeting, pressure is brought to the cost budgeting management of the department of use simultaneously; 2. wind-force railroad switch snow removal system, in dust storm larger area, air path pipeline is easily blocked by sand, and pressurized air contains moisture that winter pipeline is frozen, and cause maintenance of the equipment complicated, Reliability comparotive is low; Although 3. hot water nozzle's formula device for melting snow effect is better, should not uses in the area of the special severe cold of weather, rail may be caused to freeze; 4. Snow Agent is easy to promote the use of AT STATION as one snow melt mode easily, can reduce the labour intensity of staff simultaneously.
In conjunction with practical situation, area, Inner Mongol dust storm is comparatively large, winter severe cold, temperature is lower, and Snow Agent can be used as one snow melt mode easily and removes the snow to track switch, is easy to station in my office's pipe and promotes the use of, reduce the labour intensity of staff simultaneously, efficiently solve melting snow on turnout junction problem in winter.Snow Agent freezing point can reach-30 DEG C ~-50 DEG C, ice and snow can be made to melt rapidly, snow-broth after thawing, lower than the freezing point of water, has the ability that the long period (the longest reach 12 hours) prevents ice and snow from assembling, thus track switch can be made not freeze, does not affect the closely connected of track switch.Therefore melting snow on turnout junction agent has broad application prospects.
At present, Snow Agent is mainly used in airport in winter, highway, square, parking lot, railway, avenue etc. and plays melting ice and snow and antifreeze effect, and its composition is broadly divided into three classes by its chemical constitution: (1) villaumite type Snow Agent.Such as based on the Snow Agent of the salts such as sodium-chlor, calcium chloride, magnesium chloride.This type of Snow Agent price is relatively cheap, and spreading method is simple, quick, efficient, alleviates rapidly the requirement of traffic, widely used by countries in the world in last century after meeting snow; (2) non-villaumite type Snow Agent (comprising organic or inorganic salt, amine, alcohols).Certain achievement has been had both at home and abroad to the development of environment-friendly snowmelt agent.DOT company of the U.S. utilizes the cellulose waste in municipal wastes and have developed calcium magnesium acetate deicing agent containing the Wingdale of magnesiumcarbonate; Its raw material of LMWBL deicing agent that United States Patent (USP) inventor Terence.E.peel develops adopts sodium carbonate to produce obtained black liquor as the kraft pulp of pulping chemical, this kind of deicing salt on environment harm is little, there is very high environment protection significance, but because its price is higher, only apply among a small circle on airport etc.; (3) mixed type Snow Agent, i.e. fluid organic material+rust inhibitor.Such as existing Snow Agent is parent by ethylene glycol or propyleneglycoles mostly, wherein adds inhibiter.The experiment proved that result of use is fine on airfield runway, very effective to the snowfall of below 5cm, and can prevent snow melt from forming nilas.Although this type of Snow Agent is lower than pure villaumite type Snow Agent in snow melt effect, it has good rust prevention function, is developed by people as novel Snow Agent.
Along with widely using of the first chloride salt Snow Agent, because existing Snow Agent contains a large amount of sodium-chlor, it excessively uses can cause afforestation vegetation mortality, and highway, bridge concrete road surface cause heavy corrosion to destroy.Mixed after infiltrating earth's surface into the snow melt of Snow Agent, also can pollute rivers, underground water, destroy ecotope.Along with the enhancing of Environmental Protection in China consciousness, after chloride salt snow melt, the harm that metal, concrete and surrounding plants cause more and more is valued by the people, therefore, does not use chloride salt snow melt after much motorway snow, but take the measure of road closure.The harm of Equations of The Second Kind non-villaumite type deicing salt on environment is little, has very high environment protection significance, but due to its price higher, only apply among a small circle on airport etc.
And for the 3rd class mixed type Snow Agent, i.e. fluid organic material+rust inhibitor type Snow Agent, its mother liquor composition is comparatively single on the one hand, and most the type Snow Agent selects a kind of organic alcohols as mother liquor; The composition of existing inhibiter is with toxicity to a certain degree on the other hand, and as being a kind of carcinogens as the nitrite of inhibiter, labour hygiene agencies dictate can not use; Silicate is pretty good, and therefore third generation Snow Agent inhibiter is main component with silicate in the world, but silicate dissolves instability in aqueous, must simultaneously with the stablizer of silicate, and life-time service is still undesirable; Molybdate expensive, seldom uses in actual applications.Through often burn into being caused to pollute to soil, road surface or other object contact faces after this kind of inhibiter dissolves, even have influence on the existence of human and animal.Current Snow Agent is widely used in the snow removing such as highway, airport, but does not find the Snow Agent being applied to railway switch aspect.Therefore, need badly and produce low, the stable performance of a kind of cost, corrosion-resistant, nontoxic, tasteless, conveniently to produce, be convenient to operation and implement and the Snow Agent meeting environmental requirement becomes the task of top priority.
Summary of the invention
The shortcoming that all kinds of Snow Agent that this research is sold for current market exist, and on the basis that with reference to a large amount of domestic and foreign literatures, determine using multiple low molecule organic multicomponent alcohol mixture as Snow Agent mother liquor, the mode that inhibiter be combined with each other with organism and inorganics is optimized formula.Through a large amount of recipe determination work, find out that a kind of cost is low gradually, stable performance, corrosion-resistant, nontoxic, tasteless, conveniently to produce, be convenient to operation and implement and the Snow Agent optimization of C/C composites meeting environmental requirement.
Its main ingredient is low molecule organic polyhydric alcohol, water, the composite corrosion inhibitor that is made up of organic-inorganic mixture.Wherein:
1, low molecule organic polyhydric alcohol selects one or both alcohol in ethylene glycol, propylene glycol, with preferably, and the mixture of they and ethanol composition, most preferably, ethylene glycol+ethanol composition.
2. water: the deionized water that can be selected from water, distilled water, different grades;
3. composite corrosion inhibitor: comprise trolamine, chelate of metal ion or its esters, Starso, benzotriazole, SODIUM PHOSPHATE, MONOBASIC.
The effect of each component in this Snow Agent
1. select the effect of low molecule organic polyhydric alcohol: ethylene glycol boiling point is high, volatility is little, modest viscosity and vary with temperature little, and Heat stability is good is desirable Snow Agent mother liquor.Add a certain amount of ethanol, make to add many hydrogen bonds in this Snow Agent, thus improve its boiling point, also greatly reduce its freezing point.
2. the effect of trolamine: have good antiseptic and rustproof effect, not easily produces precipitation and fouling simultaneously.
3. the effect of chelate of metal ion or its esters: effectively can eliminate corrosion, guarantees that Snow Agent liquid is not dirty.
4. the effect of Starso: because silicate material very easily forms colloidality structure, and metasilicate has good stability and good Corrosion Protection.
5. the effect of benzotriazole: the heat conduction velocity improving Snow Agent and metal, and the growing amount of rust deposite can be slowed down, weaken the decline of pH value, it also has good preservative effect simultaneously.
6. the effect of SODIUM PHOSPHATE, MONOBASIC: be long-effective corrosion agent and pH value buffer reagent, and cheap, reduce costs.
We have selected the composite corrosion inhibitor that the mode combined by gas chromatography, inorganics forms this Snow Agent.The mechanical effect destruction that this kind of composite corrosion inhibitor can prevent chemical reaction from producing, can prevent again galvanic corrosion from destroying, and various composition has synergistic effect, the composite protection film of formation, existing passive film has adsorption film again, reaches the object of multilayer protection.This composite corrosion inhibitor all provides good corrosion inhibition provide protection to cast iron, brass and aluminium.The freezing point of less than-40 DEG C can be reached, modest viscosity through this Snow Agent of measuring, Heat stability is good, environmentally safe, mildew-resistant, longer without particular requirement, storage period to water quality, track switch can be sticked better, be applicable to the use of extremely frigid zones environment.
The composition of formula
In Snow Agent, each component proportion is as follows:
Low molecule organic polyhydric alcohol: 30-60%(preferably, adds ethanol: 1-2%, and low molecule organic polyhydric alcohol selects one or both alcohol in ethylene glycol, propylene glycol, follow preferably, the mixture of they and ethanol composition, most preferably, ethylene glycol+ethanol composition)
Trolamine: 0.8-1.2%
Chelate of metal ion or its esters: 0.1-1%
Starso: 0.2-0.4%
Benzotriazole: 0.1-1%
SODIUM PHOSPHATE, MONOBASIC: 0.2-0.5%
Water: 30%-70%
Relative to traditional inorganic salt Snow Agent, this Snow Agent adopts the organic and inorganic formula that combines, by the mixture of two or three alcohol in ethylene glycol, propylene glycol, ethanol, water and the composite corrosion inhibitor be made up of trolamine, chelate of metal ion or its esters, Starso, benzotriazole, SODIUM PHOSPHATE, MONOBASIC are formed, its freezing point reaches less than-40 DEG C, and melting ice and snow effect is more remarkable.
The general layout that it is mother liquor that novel Snow Agent formula has been abandoned with a kind of solvent, adopts the mode that multiple low molecule organic polyhydric alcohol mixes;
The composite corrosion inhibitor that inhibiter also adopts Multiple components to combine, various composition has synergistic effect, the composite protection film of formation, and existing passive film has adsorption film again, reaches the object of multilayer protection.Achieve the effect of anticorrosion, antirust, scale removal, pollution-free, toxicological harmless environmental protection.
Preparation method
(1) low molecule organic polyhydric alcohol, trolamine, chelate of metal ion or its esters, Starso, benzotriazole, SODIUM PHOSPHATE, MONOBASIC, water is accurately taken in proportion;
(2) water is added to can heats and with in the reactor of agitating function;
(3) trolamine, chelate of metal ion or its esters, Starso, benzotriazole, SODIUM PHOSPHATE, MONOBASIC are added to the water successively, constantly stir, make it dissolve, heat if desired;
(4) slowly low molecule organic multicomponent alcohol mixture is added in above-mentioned mixed system, fully dissolves, stir, pH value is controlled to be between 8 ~ 9;
(5) filter with the filter core bucket that particle diameter is 1 μm; Filtrate is made Snow Agent;
(6) according to processing requirement, materialization inspection is carried out to product, comprise the performance index such as freezing point, pH value, dissolution rate, corrosion rate.
This Snow Agent compared with prior art possesses following advantage:
1. persistence.Because the debris of this Snow Agent of mixture after spraying in long-time adding low molecule organic polyhydric alcohol can extend the snow melt time, make Snow Agent long-term role.And lower relative to other Snow Agent of freezing point, due to adding of ethanol, considerably increase hydrogen bond, thus make freezing point reach-40 DEG C and following;
2. rapidity.The accumulated snow of track switch especially between stock rail and tongue can dissolve rapidly after spraying by this Snow Agent immediately, and reaches good result in the short period;
3. the feature of environmental protection.This Snow Agent adopts composite corrosion inhibitor to have the effect of protection against corrosion, anticorrosion, antirust, scale removal, pollution-free, toxicological harmless, environmental protection;
4., compared with Snow Agent of the same type, not only consumption is little for this Snow Agent, price is more cheap, and collocation method is easy, easy to operate, shelf-stable;
5. Snow Agent is easy to promote the use of AT STATION as one snow melt mode easily, can reduce the labour intensity of staff.
Snow Agent flusher and method
(1) flusher adopts the equipment of spraying insecticide can meet Snow Agent service requirements, using method is easy, sprays or smears.Because the Snow Agent sprayed is droplet state, in suggestion sprinkling process, operator should wear mouth mask to prevent in fog-like liquid suction body.
(2) suggestion of spray method
Railway interests's cleaning snow in winter can adopt Snow Agent and the mode combined that manually removes the snow.Accumulated snow for track both sides can utilize the method removings such as artificial, mechanical; And the accumulated snow of track switch especially between stock rail and tongue is removed by spraying snow-melting agent, the usage quantity of Snow Agent can be reduced like this, avoid expanding environmental pollution.It should be noted that and should improve method of application when using Snow Agent snow removing, before suggestion adopts snow with after snow, use the method for Snow Agent.Use Snow Agent to freeze after preventing snow landing before snow, increase snow removing difficulty; Use Snow Agent can use the Snow Agent of various dose according to the field condition such as temperature, snowfall after snow, to improve snow melt efficiency, reduce consumption.
Embodiment
Embodiment 1:
For Shanxi, Ji and southern area temperature about-15 DEG C and above regional each material proportioning:
Low molecule organic polyhydric alcohol: 30%
Ethanol: 1%
Water: 67.4%
Trolamine: 0.8%;
Chelate of metal ion and its esters: 0.1%;
Starso: 0.2%;
Benzotriazole: 0.3%;
SODIUM PHOSPHATE, MONOBASIC: 0.2%
Preparation method as previously mentioned.
Embodiment 2:
For the north comparatively cold district if the temperature in the Three Eastern Provinces is-25 ~-30 DEG C and each material proportioning in following area:
Low molecule organic polyhydric alcohol: 60%
Ethanol: 2%
Water: 34.5%
Trolamine: 1.0%;
Chelate of metal ion and its esters: 0.8%;
Starso: 0.4%;
Benzotriazole: 0.8%;
SODIUM PHOSPHATE, MONOBASIC: 0.5%
Preparation method as previously mentioned.
Embodiment 3: performance measurement
Metal protection test and toxicological parameters
Go out the Snow Agent of different ratios according to above-mentioned formulated, corrosion test is carried out to it.The performance index such as estimated viscosity, proportion, pH value, freezing point, then at 25 DEG C, a certain amount of aluminium alloy, red copper, steel disc is put into respectively, sealing and standing 7 days (168h), measure different compounded formula Snow Agent to the corrosion condition of metal testing plate, result is as shown in table 1:
Table 1 full formula test-results
The assay of this Snow Agent the key technical indexes is as shown in table 2:
| Test item | Standard-required (liquid) | Measured result |
| Dissolution rate/(g/min) | ≥6.0 | 11.0 |
| Deicing or snow melting ability/(g/min) | 90% of >=sodium-chlor snow melt ability | 102.0 |
| Freezing point/DEG C (200g/L) | ----- | -47 |
| PH value | 6.0～10.0 | 8.7 |
| Corrosion of carbon steel rate/(mm/a) | ≤0.18 | 0.04 |
| Concrete erosion rate/(kg/m 2) | ≤0.30 | 0.05 |
| Mercury (Hg) w/% | ≤0.0001 | 0.0 |
| Cadmium (Cd) w/% | ≤0.0005 | 0.00002 |
| Chromium (Cr) w/% | ≤0.0015 | 0.0002 |
| Plumbous (Pb) w/% | ≤0.0025 | 0.0003 |
| Arsenic (Se) w/% | ≤0.0005 | 0.0 |
Snow Agent is to concrete corrosion experiment
The Snow Agent solution soaking concrete test block of preparation optimum formula, soak time is 168h, and the concrete test block surface be immersed in Snow Agent solution is not significantly corroded.
Snow Agent snow melt is tested
Difference according to Winter Snow amount is tested.Test divides slight snow, moderate snow, heavy snow Three Estate to carry out, and by carrying out spray test to the snowfall of different grades, determines the Snow Agent fountain height under different grades.(see table 3)
Snow Agent fountain height under the different snowfall grade of table 3
| Snowfall grade | The deposite snow degree of depth | Often organize melting snow on turnout junction agent fountain height |
| Slight snow | Less than 3 centimetres | ≤400mL |
| Moderate snow | 3 ~ 5 centimetres | 400～700mL |
| Heavy snow | 5 ~ 10 centimetres | 700～1400mL |
Claims (9)
1. a Snow Agent, is characterized in that its composition comprises (weight percent):
Low molecule organic polyhydric alcohol: 30-60%
Trolamine: 0.8-1.2%
Chelate of metal ion or its esters: 0.1-1%
Starso: 0.2-0.4%
Benzotriazole: 0.1-1%
SODIUM PHOSPHATE, MONOBASIC: 0.2-0.5%
Water: 30%-70%,
Each component sum is 100%,
Wherein said low molecule organic polyhydric alcohol is selected from one or both alcohol in ethylene glycol, propylene glycol.
2. Snow Agent according to claim 1, wherein composition also comprises and adds ethanol 1-2% (weight percent).
3., according to the Snow Agent of claim 1 or 2, wherein composition consists of:
Low molecule organic polyhydric alcohol: 30%
Ethanol: 1%
Water: 67.4%
Trolamine: 0.8%;
Chelate of metal ion and its esters: 0.1%;
Starso: 0.2%;
Benzotriazole: 0.3%;
SODIUM PHOSPHATE, MONOBASIC: 0.2%,
Wherein said low molecule organic polyhydric alcohol is selected from one or both alcohol in ethylene glycol, propylene glycol.
4., according to the Snow Agent of claim 1 or 2, wherein composition consists of:
Low molecule organic polyhydric alcohol: 60%
Ethanol: 2%
Water: 34.5%
Trolamine: 1.0%;
Chelate of metal ion and its esters: 0.8%;
Starso: 0.4%;
Benzotriazole: 0.8%;
SODIUM PHOSPHATE, MONOBASIC: 0.5%,
Wherein said low molecule organic polyhydric alcohol is selected from one or both alcohol in ethylene glycol, propylene glycol.
5., according to the arbitrary described Snow Agent of claim 1-2, wherein said low molecule organic polyhydric alcohol is ethylene glycol.
6., according to claim 3 Snow Agent, wherein said low molecule organic polyhydric alcohol is ethylene glycol.
7., according to claim 4 Snow Agent, wherein said low molecule organic polyhydric alcohol is ethylene glycol.
8., according to the preparation method of the arbitrary described Snow Agent of claim 1-7, comprise step:
(1) each composition is accurately taken in proportion for subsequent use;
(2) water is added to can heats and with in the reactor of agitating function;
(3) trolamine, chelate of metal ion or its esters, Starso, benzotriazole, SODIUM PHOSPHATE, MONOBASIC are added to the water successively, constantly stir, make it dissolve, heat if desired;
(4) slowly the mixture of low molecule organic polyhydric alcohol or itself and ethanol is added in above-mentioned mixed system, fully dissolves, stir, pH value is controlled to be between 8 ~ 9;
(5) filter with the filter core bucket that particle diameter is 1 μm; Filtrate is made Snow Agent.
9., according to the spray pattern of the arbitrary described Snow Agent of claim 1-7: wherein when ground area snow depth degree less than 3 centimetres, often organize melting snow on turnout junction agent fountain height≤400mL; During the deposite snow degree of depth 3 ~ 5 centimetres, often organize melting snow on turnout junction agent fountain height 400 ~ 700mL; During the deposite snow degree of depth 5 ~ 10 centimetres, often organize melting snow on turnout junction agent fountain height 700 ~ 1400mL.
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Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106350013A (en) * | 2016-08-30 | 2017-01-25 | 周琼 | Environmental snow melting agent |
| CN106350012A (en) * | 2016-08-30 | 2017-01-25 | 周琼 | Efficient snow-melting agent |
| CN106367027A (en) * | 2016-08-30 | 2017-02-01 | 周琼 | Efficient environment-friendly snow-melting agent |
| CN106479438A (en) * | 2016-08-30 | 2017-03-08 | 周琼 | A kind of environment-friendly high-efficiency Snow Agent |
| CN106479439B (en) * | 2016-10-13 | 2018-09-07 | 国家电网公司 | A kind of ice melting agent and preparation method thereof for substation |
| CN106883820A (en) * | 2017-03-01 | 2017-06-23 | 黄山九星环保科技有限公司 | A kind of photovoltaic deicing snow melt liquid and preparation method thereof |
| CN108048038A (en) * | 2018-02-11 | 2018-05-18 | 柳昊辰 | Ice melting agent and preparation method thereof |
| CN110067930A (en) * | 2019-03-28 | 2019-07-30 | 乐山力朴能源环保科技有限公司 | A kind of sealing fluid for biogas fluid seal gas holder |
| CN110746932B (en) * | 2019-11-18 | 2022-09-13 | 黄山学院 | Short-term antirust low-chlorine snow-melting agent and preparation method thereof |
| CN112680189B (en) * | 2020-12-22 | 2022-03-22 | 吉林大学 | Mixed type slow-release snow-melting and deicing material, and preparation method and application method thereof |
| CN113652202A (en) * | 2021-09-28 | 2021-11-16 | 苏州佳固士新材料科技有限公司 | Environment-friendly snow-melting agent and preparation method thereof |
| CN115521761A (en) * | 2022-11-04 | 2022-12-27 | 中国铁路北京局集团有限公司北京科学技术研究所 | Snow-melting agent for turnout |
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| CN1600830A (en) * | 2003-09-27 | 2005-03-30 | 张天德 | Snow-solving agent in environmental protection and preparation method |
| CN102533222A (en) * | 2011-07-06 | 2012-07-04 | 大连工业大学 | Antifreezing snow melting agent and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1600830A (en) * | 2003-09-27 | 2005-03-30 | 张天德 | Snow-solving agent in environmental protection and preparation method |
| CN102533222A (en) * | 2011-07-06 | 2012-07-04 | 大连工业大学 | Antifreezing snow melting agent and preparation method thereof |
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