CN101717616A - Production process of rapid attapulgite ice and snow melting agent - Google Patents
Production process of rapid attapulgite ice and snow melting agent Download PDFInfo
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- CN101717616A CN101717616A CN200910212967A CN200910212967A CN101717616A CN 101717616 A CN101717616 A CN 101717616A CN 200910212967 A CN200910212967 A CN 200910212967A CN 200910212967 A CN200910212967 A CN 200910212967A CN 101717616 A CN101717616 A CN 101717616A
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Abstract
The invention discloses a production process of a rapid attapulgite ice and snow melting agent, technically characterized in that the ingredients of the rapid attapulgite ice and snow melting agent are mixed, acidulated, extruded, dried, crushed, screened, mixed and packaged into a finished product. The rapid attapulgite ice and snow melting agent contacts with snow and ice, generates heat to rapidly melt ice or snow into water which is absorbed by the rapid attapulgite ice and snow melting agent and converted into gelatinous matter. The rapid attapulgite ice and snow melting agent is an irregular particle mixture, is beneficial to being uniformly sprinkled on a snow-melting construction site, not only can rapidly melt ice and snow, and effectively prevent the melted snow or ice from being frozen again, thereby improving the snow-melting effect, but also loosening the deposited snow, and being beneficial to uniformly removing, collecting and cleaning the snow-melting site. The rapid attapulgite ice and snow melting agent has simple production process, low production cost and remarkable snow-melting effect; and the invention is suitable for producing various salt rapid ice and snow melting agents.
Description
Technical field
The present invention relates to Snow Agent, be specifically related to a kind of production method of rapid attapulgite ice and snow melting agent.
Background technology
Snow Agent is title cryosel, road frostproofer again, is the snow removing material of widespread use in winter, and its composition is based on " chloride salts " such as sodium-chlor, calcium chloride, magnesium chlorides, and adds auxiliary agents such as an amount of inhibiter, slipproofing agent.
It is better that " chloride salt " Snow Agent is used for the snow melt antifreezing effect, price is also cheap, at ice or after snow melt becomes liquid, the its esters residue accumulates in farmland and green belt, will cause farm crop and green plants mass mortality, shorten road life, salts substances and pitch can produce chemical reaction, cause asphalt surface to come off, under the effect of traffic load, make road surface breakage, hazardness to reinforcing bar, concrete road surface is also quite big simultaneously, is one of important factor of bringing out reinforcement corrosion, is seriously threatening the safety of industrial plants." chloride salt " material enter underground after, also can the groundwater resource of locality be polluted, the edible water that is polluted by Snow Agent can produce serious harm to HUMAN HEALTH.
More satisfactory, free of contamination Snow Agent that calcium magnesium acetate is considered to, but the acetate readily biodegradable in the calcium magnesium acetate consume dissolved oxygen in the water body, cause potential harm.If calcium magnesium acetate is used in a large number, the biological degradation of acetate improves the BOD content in the water body, causes exhausting of dissolved oxygen.Because the calcium magnesium acetate price is too high, generally only be used for the snow melt in important places such as airport.
Use existingization ice and snow melting agent, the speed of changing the ice snow melt is slower, after ice or snow melt become liquid, freezes once more easily, not have icing sewage will flow in low-lying place, farmland, green belt and the river on road surface, can't carry out collection and treatment.
The Chinese patent publication number is: CN 101250392, patent disclosure day: on March 28th, 2008, name is called " method for preparing anti-freezing deicing salt ", disclose " a kind of method for preparing anti-freezing deicing salt at first adopts with particulate load solubility salt Snow Agent such as zeolite, diatomite, sepiolites and makes saturated solution 20 ℃～100 ℃ temperature ranges; The inorganic non-metallic porous material of grain diameter between 10 orders～80 orders, join in this saturated solution and soak 15min～45min afterwards; Filter dried solution again; The inorganic non-metallic porous material is placed 105 ℃～120 ℃ at last and be dried to constant weight.Need repeating step (2)-(4), i.e. immersion-elimination solution-oven dry whole process 1-10 time for making the anti-freezing deicing salt that is applicable to different ice and snow weather.The invention provides a kind of environment that economizes on resources, protects, solve the Snow Agent of the of short duration shortcoming of snow melt effect in the existing use-pattern conscientiously; This Snow Agent can effectively be quickened disintegrating of ice sheet, reduces the resistance in the artificial or mechanical snow removing process that opens ice.”
Above-mentioned patent weak point is that this invention adopts the method for immersion-elimination solution-oven dry whole process 1-10 time to prepare anti-freezing deicing salt, and its solubility salt Snow Agent remains salts such as containing calcium chloride, magnesium chloride and Repone K.(CMA) makes saturated solution with calcium magnesium acetate, adds zeolite or diatomite immersion-elimination solution-oven dry whole process 1-10 time, and not only technology is loaded down with trivial details, and production cost is also very high.
Summary of the invention
The objective of the invention is to overcome weak point in the prior art, provide that a kind of technology is simple, low production cost, snow melt effect significantly and the production method that can collect the unified rapid attapulgite ice and snow melting agent of handling.
The production method of rapid attapulgite ice and snow melting agent is: with rapid attapulgite ice and snow melting agent batch mixes after carry out acidifying, extruding, drying, pulverizing, screening, mix, be packaged as finished product.
Rapid attapulgite ice and snow melting agent is made up of attapulgite clay, wilkinite, water-ground limestone, glacial acetic acid, unslaked lime, High hydrophilous resin, sodium lauryl sulphate and water.
Attapulgite clay has higher plasticity-under aqueous situation, good stability in high temperature and salt solution, density is little, attapulgite clay is viscosity when moist, its viscosity can reach more than the 3000mPas, the dry post-shrinkage ratio of attapulgite clay is little, and does not produce be full of cracks, and the hardness of attapulgite clay is Mohs 2～3 degree; After the attapulgite clay acidification, specific surface area can reach 350m
2More than/the g, attapulgite has good adsorption and decoloration performance, also has very strong water-absorbent, magnesian content mean value 〉=12% in the attapulgite clay, content mean value 〉=10% of aluminium sesquioxide.The content of attapulgite 〉=45.0% in the attapulgite clay that the present invention selects for use, particle fineness≤0.074 millimeter.
Wilkinite has cohesiveness and plasticity-, wilkinite suction back volumetric expansion, and volume energy expands and increases several times to tens times.Wilkinite can disperse to be soliquid in water medium, this suspension has certain viscosity and thixotropy.Wilkinite has certain adsorptive power to all gases, liquid, organic substance, content mean value 〉=20% of aluminium sesquioxide in the wilkinite, the content of montmorillonite 〉=50.0% in the wilkinite that the present invention selects for use, particle fineness≤0.074 millimeter.
Glacial acetic acid is a liquid colourless, that pungency tart flavour is arranged, water-soluble and many organic solvents, and its aqueous solution is slightly acidic, can follow reactions such as many active metals, basic oxide, alkali to generate acetate.The quality of the glacial acetic acid that the present invention selects for use meets the standard of the industrial glacial acetic acid acceptable end product of GB/T 1628-2008.
Water-ground limestone is white or pale powder, have do not contain that the low wear(ing)value of crystal water, hardness is little, nontoxic, tasteless, advantages such as odorless and good dispersity; Water-soluble hardly, meet dilute acetic acid, dilute hydrochloric acid, rare nitric acid generation intumescence and dissolving, the quality of the water-ground limestone that the present invention selects for use meets the standard of HG/T 3249-2001 industry water-ground limestone acceptable end product.
Attapulgite clay, water-ground limestone and wilkinite are pressed furnish component and are formed the Attapulgite mixture.
The unslaked lime outward appearance is white or pale solid particle, and thermal value height, unslaked lime add in the entry, and 1 minute Nei Keda is more than 80 degrees centigrade, and being used for the present invention can be fast with ice or snow melt, and the particle fineness of the unslaked lime that the present invention selects for use is controlled at 0.5～5 millimeter;
The water regain of High hydrophilous resin is big, can reach hundreds of times even thousands of times of sole mass, can in the several seconds, generate gel after the suction, and water-retentivity is strong, even also be difficult for dehydration under low temperature, pressurized conditions, the good stability to light, heat, cold-peace soda acid has the favorable biological degradability energy, be used for the present invention and the water behind ice or the snow melt can be absorbed rapidly expand and be converted into the gel object, the particle fineness of the High hydrophilous resin that the present invention selects for use is controlled at 0.1～1 millimeter;
Sodium lauryl sulphate has good emulsifying, foaming, and infiltration, decontamination and dispersing property, the bubble end is abundant, and biological degradation is fast.Being used for the present invention can be with emulsifying liquid and the foaming behind ice or the snow melt, and vehicle travels when ice and snow road, because rolling of wheel helps the loosening and thawing of accumulated snow and freezing acceleration, does not produce ice and snow once more and freezes.
The present invention is achieved by following technical proposals:
The production method of rapid attapulgite ice and snow melting agent is characterized in that, stirs in (1) batching input stirrer with the Attapulgite mixture, and the back that stirs adds in the fermentation vat; (2) glacial acetic acid after will diluting slowly adds in the Attapulgite mixture in the fermentation vat and carries out acidification, and acidificatoin time was controlled at 24～48 hours; (3) extruding in the Attapulgite mixture after the acidifying input extrusion machine is flap, the thickness of flap≤3 millimeter; (4) flap is transported to carries out slow drying in the whizzer, be 1.5～5 hours time of drying, and drying temperature is controlled at 50～75 ℃; (5) will pulverize and sieve in the dried flap input pulverizer, particle fineness be controlled at 0.25～5 millimeter, and water content≤1.5%, the particle after the screening are the work in-process of rapid attapulgite ice and snow melting agent; (6) in the batching input mixer with rapid attapulgite ice and snow melting agent, be packaged as rapid attapulgite ice and snow melting agent after mixing;
The batching of described Attapulgite mixture is made up of following component by weight percentage: attapulgite clay 20～60%, water-ground limestone 10～45% and wilkinite 5～40%;
The batching of the glacial acetic acid after the described dilution is made up of following component by weight percentage: glacial acetic acid 5～65%, water 35～95%;
The batching of described acidification is made up of following component by weight percentage: the glacial acetic acid 25～45% after the dilution, Attapulgite mixture 55～75%;
The batching of described rapid attapulgite ice and snow melting agent is made up of following component by weight percentage: the work in-process 45～85% of rapid attapulgite ice and snow melting agent, unslaked lime 10～45%, High hydrophilous resin 0.1～10% and sodium lauryl sulphate 0.05～5%.
Glacial acetic acid after the dilution is slowly added and carries out acidification in the Attapulgite mixture; magnesium oxide in glacial acetic acid and the Attapulgite mixture, aluminum oxide, lime carbonate slowly produce reaction and generate acetate such as calcium acetate, magnesium acetate and Burow Solution; emit no waste water in the whole process of production, help environment protection.
Extruding is flap in the Attapulgite mixture input extrusion machine after the acidifying, not only helps strengthening the effect of acidification, can also improve the physicals of flap, for the finished product of rapid attapulgite ice and snow melting agent is gained in strength.
Flap is transported to and carries out slow drying in the whizzer, helps improving the effective constituent and the stability of acetate, reduces the water content of rapid attapulgite ice and snow melting agent, guarantees the rapid attapulgite ice and snow melting agent quality product.
Rapid attapulgite ice and snow melting agent shows with " chloride salt " and " calcium magnesium acetate " snow melt ability comparing result, rapid attapulgite ice and snow melting agent has the snow melt effect stronger than " chloride salt " and " calcium magnesium acetate ", rapid attapulgite ice and snow melting agent and snow freeze and contact the back and produce heat, make ice or snow be melted into water fast, constantly enter in the rapid attapulgite ice and snow melting agent, absorbed by the Attapulgite in the rapid attapulgite ice and snow melting agent, wilkinite, unslaked lime and High hydrophilous resin, be converted into the gel object.
Rapid attapulgite ice and snow melting agent is a kind of irregular granular mixture, help the snow melt working-yard and carry out uniform spreading, not only can rapid ice snow melt, snow after effectively preventing to melt or ice produce once more and freeze, improve the snow melt effect, can also make accumulated snow loosening, help the unified cleaning snow melt scene of rooting out and collect.
Because the acetate in the rapid attapulgite ice and snow melting agent is to be carried in attapulgite clay, water-ground limestone and the bentonitic mixture, gel object after the snow melt after the cleaning rapid attapulgite ice and snow melting agent suction in time, can avoid the sewage after the ice dissolution to flow into farmland, green belt and underground, do not influence the normal growth of farm crop and green plants, can not cause road surface breakage yet, metal is not had corrosive nature.
The production method technology of rapid attapulgite ice and snow melting agent is simple, low production cost, and the snow melt effect is remarkable, does not have environmental pollution, is used for the deicing or snow melting that airport, motorway, bridge, urban and suburban roads and garden etc. are located.
The production method of rapid attapulgite ice and snow melting agent is applicable to produces the rapid ice and snow melting agent of various salts.
Embodiment
The invention will be further described below in conjunction with embodiment:
The production method of rapid attapulgite ice and snow melting agent is characterized in that, stirs in (1) batching input stirrer with the Attapulgite mixture, and the back that stirs adds in the fermentation vat; (2) glacial acetic acid after will diluting slowly adds in the Attapulgite mixture in the fermentation vat and carries out acidification, and acidificatoin time was controlled at 36 hours; (3) extruding in the Attapulgite mixture after the acidifying input extrusion machine is flap, the thickness of flap≤3 millimeter; (4) flap is transported to carries out slow drying in the whizzer, be 4 hours time of drying, and drying temperature is controlled at 65～75 ℃; (5) will pulverize and sieve in the dried flap input pulverizer, particle fineness be controlled at 0.25～5 millimeter, and water content≤1.5%, the particle after the screening are the work in-process of rapid attapulgite ice and snow melting agent; (6) in the batching input mixer with rapid attapulgite ice and snow melting agent, be packaged as rapid attapulgite ice and snow melting agent after mixing;
The batching of described Attapulgite mixture is made up of following component by weight percentage: attapulgite clay 45%, water-ground limestone 30% and wilkinite 25%;
The batching of the glacial acetic acid after the described dilution is made up of following component by weight percentage: glacial acetic acid 45%, water 55%;
The batching of described acidification is made up of following component by weight percentage: the glacial acetic acid 40% after the dilution, Attapulgite mixture 60%.
The batching of described rapid attapulgite ice and snow melting agent is made up of following component by weight percentage: the work in-process 75% of rapid attapulgite ice and snow melting agent, unslaked lime 20%, High hydrophilous resin 4.5% and sodium lauryl sulphate 0.5%.
Claims (1)
1. the production method of a rapid attapulgite ice and snow melting agent is characterized in that, stirs in (1) batching input stirrer with the Attapulgite mixture, and the back that stirs adds in the fermentation vat; (2) glacial acetic acid after will diluting slowly adds in the Attapulgite mixture in the fermentation vat and carries out acidification, and acidificatoin time was controlled at 24～48 hours; (3) extruding in the Attapulgite mixture after the acidifying input extrusion machine is flap, the thickness of flap≤3 millimeter; (4) flap is transported to carries out slow drying in the whizzer, be 1.5～5 hours time of drying, and drying temperature is controlled at 50～75 ℃; (5) will pulverize and sieve in the dried flap input pulverizer, particle fineness be controlled at 0.25～5 millimeter, and water content≤1.5%, the particle after the screening are the work in-process of rapid attapulgite ice and snow melting agent; (6) in the batching input mixer with rapid attapulgite ice and snow melting agent, be packaged as rapid attapulgite ice and snow melting agent after mixing;
The batching of described Attapulgite mixture is made up of following component by weight percentage: attapulgite clay 20～60%, water-ground limestone 10～45% and wilkinite 5～40%;
The batching of the glacial acetic acid after the described dilution is made up of following component by weight percentage: glacial acetic acid 5～65%, water 35～95%;
The batching of described acidification is made up of following component by weight percentage: the glacial acetic acid 25～45% after the dilution, Attapulgite mixture 55～75%;
The batching of described rapid attapulgite ice and snow melting agent is made up of following component by weight percentage: the work in-process 45～85% of rapid attapulgite ice and snow melting agent, unslaked lime 10～45%, High hydrophilous resin 0.1～10% and sodium lauryl sulphate 0.05～5%.
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| CN2009102129675A CN101717616B (en) | 2009-11-17 | 2009-11-17 | Production process of rapid attapulgite ice and snow melting agent |
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| CN101717616B CN101717616B (en) | 2011-09-21 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103497735A (en) * | 2013-09-29 | 2014-01-08 | 黑龙江科技大学 | Preparation method for farmland snow-melting agent |
| CN106047294A (en) * | 2016-07-01 | 2016-10-26 | 安徽联合安全科技有限公司 | Special composite snow-melting deicing agent with strong ice resistance for port and preparation method thereof |
| CN110564368A (en) * | 2019-09-16 | 2019-12-13 | 宁夏北极星化工有限公司 | organic anti-freezing powder for preventing iron ore concentrate from freezing and preparation method thereof |
| CN112683710A (en) * | 2020-12-02 | 2021-04-20 | 大连理工大学 | Test device for accelerated corrosion of reinforced concrete bridge plate under chloride ion erosion |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1050207A (en) * | 1989-09-10 | 1991-03-27 | 刘亚容 | Heat insulation frost-resistant material in silicate roof and manufacture method thereof |
| CN101560374B (en) * | 2008-04-16 | 2012-05-23 | 丹东中和化工厂 | Environment-friendly snowmelt agent |
| CN101338179B (en) * | 2008-08-27 | 2010-09-08 | 吉林大学 | Environment protection type snow-thawing agent |
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2009
- 2009-11-17 CN CN2009102129675A patent/CN101717616B/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103497735A (en) * | 2013-09-29 | 2014-01-08 | 黑龙江科技大学 | Preparation method for farmland snow-melting agent |
| CN106047294A (en) * | 2016-07-01 | 2016-10-26 | 安徽联合安全科技有限公司 | Special composite snow-melting deicing agent with strong ice resistance for port and preparation method thereof |
| CN110564368A (en) * | 2019-09-16 | 2019-12-13 | 宁夏北极星化工有限公司 | organic anti-freezing powder for preventing iron ore concentrate from freezing and preparation method thereof |
| CN110564368B (en) * | 2019-09-16 | 2022-06-17 | 宁夏北极星化工有限公司 | Organic anti-freezing powder for preventing iron ore concentrate from freezing and preparation method thereof |
| CN112683710A (en) * | 2020-12-02 | 2021-04-20 | 大连理工大学 | Test device for accelerated corrosion of reinforced concrete bridge plate under chloride ion erosion |
| CN112683710B (en) * | 2020-12-02 | 2024-04-16 | 大连理工大学 | Test device for accelerated corrosion of reinforced concrete bridge plate under chloride ion corrosion |
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