CN101747866B - Coal dust depressor and preparation method thereof - Google Patents
Coal dust depressor and preparation method thereof Download PDFInfo
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- CN101747866B CN101747866B CN 200910265220 CN200910265220A CN101747866B CN 101747866 B CN101747866 B CN 101747866B CN 200910265220 CN200910265220 CN 200910265220 CN 200910265220 A CN200910265220 A CN 200910265220A CN 101747866 B CN101747866 B CN 101747866B
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Abstract
The invention discloses a coal dust depressor and a preparation method thereof. The coal dust depressor of the invention is composed of 20-30% of sodium lignin sulfonate, 12-18% of crylic acid, 0.4-0.6% of hydrogen peroxide, 5% of calcium chloride, 0.5% of sodium tetraborate, 3% of methyl sodium silicate and 43-59% of water. The coal dust depressor of the invention has simple operation and simple and convenient production and preparation method, does not need special equipment for preparation and production, does not has toxicity, does not have corrosivity to equipment, has lower production cost, is convenient to operate and apply and conforms to environment protection requirements, and dust depression effect, especially water prevention effect is superior to that of the prior art.
Description
Technical field
The present invention relates to a kind of coal dust depressor and preparation method thereof.
Background technology
Coal is in transportation and stacking process, owing to erode or/and the water erosion meeting causes damage and environmental pollution.The open-top car transportation is generally all adopted in the transportation of coal, particularly transportation by railroad; In transportation,, add wind effect because of the generation airborne dust that jolts of road; Can make airborne dust more violent; In addition, act on the surface that betransported coal, make to be positioned at its surperficial coal dust and particle is blown off because of the transport trolley travelling speed can form bigger wind.This has caused the loss of coal on the one hand, directly causes the waste of valuable coal resources, also can cause transportation pollution caused by coal dust along the line on the other hand, also can make influence transportation crop growth along both side simultaneously; Secondly, coal dust brings sizable difficulty for the maintenance repair of rail facility, and shortens its work-ing life greatly also with the severe contamination rail facility.According to statistics, the train in row 30 joint compartments has nearly two tons of coal losses in each hundred kilometers transportation.In addition, coal can run into various Changes in weather in the open inevitably in storage or transportation, and wherein raining is a most general phenomenon.Because the rainfall meeting washes away coal grains a lot of on the coal surface, aggravation Coal Loss and environmental pollution.
For solving airborne dust that the wind erosion of coal in transportation and stacking process and water erosion cause, washing away losing issue, addressing this problem the simplest method in the prior art is at the coal surface sprinkling, is crusted in the coal surface, with the minimizing airborne dust.But this method weak effect.A series of coal fly dust suppressor factor are disclosed in the prior art for addressing this problem.As:
Chinese invention patent application 200510027100.4 discloses a kind of highly effective fire-proof dust-suppressing material and compound method with dust suppression and fire-retardant double effects.This fire-proof dust-suppressing material is 60% Calcium dichloride dihydrate, 20% magnesium chloride hexahydrate, 20% water by content and is made up of the surfactant blend that wetting agent, dispersion agent and inhibiter are formed.
Chinese invention patent application 200710158471.5 disclosed coal dust pollution inhibitors are by the compound water-based material of forming of multiple compound; Each component is: with benzene emulsion or vinyl acetate emulsion is main film-forming resin: be auxilliary film-forming resin with Z 150PH or PVF or SEPIGEL 305 15～20%: 25～30%, be thickening material: 1～2% with the Natvosol; With the Sodium hexametaphosphate 99 dispersion agent: 15～20%; With the Witophen N is Antisepticize and mildew preventive: 2～3%, be anti-settling agent with the atlapulgite: 1～2%, be skimmer with the tributyl phosphate: 2%; And white titanium pigment: 15～20%, mill base: 3～5%.
Chinese invention patent 200810212291.5 discloses a kind of railway coal transportation dust-depressor, and problems such as the prior art cost is high in order to overcome, inhibition weak effect are invented.In the railway coal transportation dust-depressor of the present invention, process raw materials of effective components consisting of of percentage composition meter by weight: synthetic polymer 2-7, modified-cellulose class water-soluble polymers 0.1-5, water 85-95, copper sulfate 0-2.Wherein, above-mentioned synthetic polymer is at least by two kinds of composite forming of water-soluble polymers.
The problem that prior art exists is a comparatively difficulty of its preparation, and the effect of being washed away by the anti-rainfall of film that existing coal dust inhibitor forms on the coal surface is relatively poor.
Summary of the invention
The object of the invention provides a kind of and overcomes the prior art deficiency, its component is nontoxic, conveniently produces preparation, and cost is lower; Weather-proof preferably water erosion effect is arranged; And, be convenient to operation and implement, and the waterproof type coal dust-inhibitor of compliance with environmental protection requirements to the transportation means non-corrosiveness.
Coal dust depressor of the present invention, the weight percent of its each component is:
Sodium lignosulfonate 20%～30%
Vinylformic acid 12%～18%
Ydrogen peroxide 50 0.4%～0.6%
Calcium chloride 5%
Sodium tetraborate 0.5%
Sodium methyl silicate 3%
Water 40%～60%.
The preparation method of coal dust depressor of the present invention is: at normal temperatures sodium lignosulfonate is added in the entry; And it dissolves fully; Fully react after adding ydrogen peroxide 50 and vinylformic acid more therein, add calcium chloride, sodium tetraborate and sodium methyl silicate again, it is abundant to continue stirring reaction.
Coal dust depressor method of use of the present invention is surperficial the getting final product of coal that at normal temperatures it evenly is sprayed on coal surface, compartment or stacks.Coal dust depressor of the present invention is sprayed on forms one deck on the coal surface behind the coal surface and have certain intensity, toughness, the good cured layer of water-repellancy; Can effectively avoid coal in transportation and stacking process, because dust pollution and loss that the wind erosion water erosion causes.
The best preparation method of coal dust depressor of the present invention after in being dissolved with the water of wooden sodium sulfonate, adding ydrogen peroxide 50 and vinylformic acid, at room temperature reacted 30 minutes earlier, then system was warming up to 50～55 degree and continued reaction 1 hour.
Among the present invention, sodium lignosulfonate is the sub product of paper industry, and it effectively utilizes, and can reduce the environmental pollution that papermaking wastewater causes.Among the present invention, sodium lignosulfonate is introduced reactive group through reacting with acrylic graft copolymer in its macromolecular structure, improve its activity, strengthens its cohesiveness; Add calcium chloride, the purpose of sodium tetraborate is further to improve its cohesiveness and bonding strength; The purpose that adds sodium methyl silicate is to strengthen its water-repellancy; Calcium chloride after sodium tetraborate and sodium methyl silicate are compound, can further strengthen the water resistance of sodium methyl silicate in addition.
Coal dust depressor of the present invention, its use is simple to operate, and preparation method is easy; Equipment that need not particular requirement when preparation is produced; And product is nontoxic, and to the transportation equipment non-corrosiveness, production cost is lower; Be convenient to operation enforcement and compliance with environmental protection requirements, dust suppression particularly waterproof effect is superior to prior art.Use the present invention traffic unit and coal customers were reduced the loss, also can effectively protect environment, have good social benefit
Embodiment
Embodiment 1
In reaction kettle, add 180 ml tap waters, under agitation add 60 gram sodium lignosulfonates (Zhangye bright papermaking of sun company), after treating to dissolve fully; Add 1.2 milliliters of ydrogen peroxide 50 (30%, Tianjin recovery fine chemistry industry institute) and 36 milliliters of vinylformic acid (Tianjin recovery fine chemistry industry institute); After normal temperature reacts half a hour down, system heat temperature raising to 50～55 degree, isothermal reaction is after 1 hour; Add 15 gram calcium chloride (Tianjin recovery fine chemistry industry institute) again; 1.5 gram sodium tetraborate (Chemical Reagent Co., Ltd., Sinopharm Group) and 9 milliliters of sodium methyl silicates (blue sky, Hubei Chemicals ltd) continue to react after one hour, get final product finished product.
Embodiment 2
In reaction kettle, add 150 ml tap waters, under agitation add 75 gram sodium lignosulfonates (Zhangye bright papermaking of sun company), after treating to dissolve fully; Add 1.5 milliliters of ydrogen peroxide 50 (30%, Tianjin recovery fine chemistry industry institute) and 45 milliliters of vinylformic acid (Tianjin recovery fine chemistry industry institute), after normal temperature reacts half a hour down; System heat temperature raising to 50～55 degree; After the isothermal reaction 1 hour, add 15 gram calcium chloride (Tianjin recovery fine chemistry industry institute) again, 1.5 gram sodium tetraborate (Chemical Reagent Co., Ltd., Sinopharm Group) and 9 milliliters of sodium methyl silicates (blue sky, Hubei Chemicals ltd); Continue reaction after one hour, get final product finished product.
Embodiment 3
In reaction kettle, add 130 ml tap waters, under agitation add 90 gram sodium lignosulfonates (Zhangye bright papermaking of sun company), after treating to dissolve fully; Add 1.8 milliliters of ydrogen peroxide 50 (30%, Tianjin recovery fine chemistry industry institute) and 54 milliliters of vinylformic acid (Tianjin recovery fine chemistry industry institute), after normal temperature reacts half a hour down; System heat temperature raising to 50～55 degree; After the isothermal reaction 1 hour, add 15 gram calcium chloride (Tianjin recovery fine chemistry industry institute) again, 1.5 gram sodium tetraborate (Chemical Reagent Co., Ltd., Sinopharm Group) and 9 milliliters of sodium methyl silicates (blue sky, Hubei Chemicals ltd); Continue reaction after one hour, get final product finished product.
Waterproof type coal dust-inhibitor with embodiment 1-3 preparation; Be sprayed on the surface of coal at normal temperatures, can form one deck on the coal surface and have certain intensity, toughness; The cured layer that waterproof type is good can effectively prevent coal because pollution and the loss that the wind erosion water erosion causes.
The coal dish appearance of about 0.1 square metre of size of prepared in laboratory is 30 degree and is placed on 40cm place under the water tap, makes current cover coal dish appearance surface 2 minutes with the flow velocity of 36L/h, and surveying its water erosion rate is 2.1%.It is 130km/h that the prepared coal dish appearance in Lanzhou University wind tunnel laboratory determination experiment chamber is initially corroded wind speed.
Claims (2)
1. coal dust depressor is characterized in that the weight percent of its composition is:
Wherein: used sodium lignosulfonate is the sub product of paper industry, and each component total amount is 100%.
2. the preparation method of the described coal dust depressor of claim 1; It is characterized in that: at normal temperatures sodium lignosulfonate is added in the entry; And it is dissolved fully, and add therein again behind ydrogen peroxide 50 and the vinylformic acid and at room temperature reacted 30 minutes earlier, then system is warming up to 50～55 degree and continues reaction 1 hour; Add calcium chloride, sodium tetraborate and sodium methyl silicate again, it is abundant to continue stirring reaction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910265220 CN101747866B (en) | 2009-12-17 | 2009-12-17 | Coal dust depressor and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200910265220 CN101747866B (en) | 2009-12-17 | 2009-12-17 | Coal dust depressor and preparation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN101747866A CN101747866A (en) | 2010-06-23 |
| CN101747866B true CN101747866B (en) | 2012-05-23 |
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| CN 200910265220 Expired - Fee Related CN101747866B (en) | 2009-12-17 | 2009-12-17 | Coal dust depressor and preparation method thereof |
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Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102433102A (en) * | 2011-09-28 | 2012-05-02 | 韩林华 | Adhesive dust suppressant for preventing coal dust from being produced in transportation of coal |
| CN103525368B (en) * | 2013-10-18 | 2015-04-15 | 王夕刚 | Dust suppressant, application and preparation method thereof, and method for suppressing coking coal powder transportation dust |
| CN103711512B (en) * | 2013-12-18 | 2016-02-10 | 安徽理工大学 | A kind of coal dust catches solid dirt agent |
| CN106967387B (en) * | 2017-05-14 | 2018-12-11 | 深圳东信环能科技有限公司 | A method of the water-fast dust suppressant of soft film type is prepared using black liquid |
| CN109111898A (en) * | 2017-06-22 | 2019-01-01 | 海门市源美美术图案设计有限公司 | A kind of dust suppressant of coal |
| CN108251062A (en) * | 2017-12-30 | 2018-07-06 | 唐林元 | A kind of preparation method of long-acting stable water proof type dust suppressant |
| CN108864382B (en) * | 2018-07-02 | 2019-10-01 | 山东科技大学 | A kind of dibutyl phthalate and preparation method for coal mine atomizing de-dusting |
| CN109762523A (en) * | 2018-12-31 | 2019-05-17 | 柏美迪康环境科技（上海）股份有限公司 | A kind of compound crust dust suppressant and preparation method thereof |
| CN110105920B (en) * | 2019-06-04 | 2022-03-08 | 中国葛洲坝集团易普力股份有限公司 | Green high-efficiency mine pavement dust suppressant and preparation method thereof |
| CN110819406A (en) * | 2019-11-19 | 2020-02-21 | 安徽鑫固环保股份有限公司 | Coal water slurry dispersing agent prepared by using modified sodium lignosulfonate and preparation method thereof |
| CN111592921A (en) * | 2020-05-28 | 2020-08-28 | 哈尔滨北方雄鹰环保设备有限公司 | Green carbon and semi-coke composite green fuel production method capable of replacing raw coal and fuel |
| CN111748249B (en) * | 2020-07-29 | 2021-12-10 | 陕西科技大学 | Silicon-phosphorus synergistic coal flame-retardant dust suppressant and preparation method thereof |
Citations (2)
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| CN1265414A (en) * | 2000-04-05 | 2000-09-06 | 吉林省电力科学研究院 | Composite powder coal ash field covering agent |
| CN1927984A (en) * | 2006-09-05 | 2007-03-14 | 盖州市有机化学厂 | Iron concentrate powder dustproof agent and preparation method thereof |
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2009
- 2009-12-17 CN CN 200910265220 patent/CN101747866B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1265414A (en) * | 2000-04-05 | 2000-09-06 | 吉林省电力科学研究院 | Composite powder coal ash field covering agent |
| CN1927984A (en) * | 2006-09-05 | 2007-03-14 | 盖州市有机化学厂 | Iron concentrate powder dustproof agent and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 李建法等.木质素磺酸盐与丙烯酸类单体的接枝共聚研究.《林产化学与工业》.2004,第24卷(第3期),正文第4页2.3节. * |
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| CN101747866A (en) | 2010-06-23 |
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Granted publication date: 20120523 Termination date: 20191217 |