CN102093846B - Phosphorus ore dust suppressant composition and preparation method thereof - Google Patents
Phosphorus ore dust suppressant composition and preparation method thereof Download PDFInfo
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Abstract
The invention relates to a phosphorus ore dust suppressant composition and a preparation method thereof. The phosphorus ore dust suppressant composition comprises water-soluble polyvinyl alcohol, guar gum, microbicide, and water. The phosphorus ore dust suppressant provided by the invention can form a solidifying layer with certain strength and tenacity on the surface of phosphorus ore or powdered ore, which allows granular or powdered phosphorus ores to bond together, so as to effectively suppress dust emission of powder phosphate ores. The phosphorus ore dust can also be used for treatment of soil desertification and dust suppression at construction sites or dust suppression of other ores and can not pollute environment.
Description
[technical field]
The invention belongs to environmental protection technical field.More specifically, the present invention relates to a kind of phosphorus ore dust suppressant composition, also relate to the preparation method of described composition.
[background technology]
Phosphorus is the important composition element of cytoplasmic biomolecule, also is the requisite a kind of element of plant-growth.84%～90% phosphorus ore is for the production of various phosphate fertilizer in the world, and 3.3% produces fodder additives, and 4% produces washing composition, and all the other are used for the industry such as chemical industry, light industry, national defence.Phosphate fertilizer accounts for 71% in the phosphorus ore consumption structure of China, and yellow phosphorus accounts for 7%, and phosphoric acid salt accounts for 6%, and phosphide accounts for 16%.Phosphate fertilizer plays an important role to the volume increase of farm crop.
The phosphorus ore of China distributes very uneven, less to the phosphorite deposits in north China stone place of production that the phosphorus ore demand is large, grade is extremely low, and the major production areas of China's Rock Phosphate (72Min BPL) is at Yunnan-guizhou Area, take the higher sedimentary rock type phosphorite of taste as main, the outward transport of Rock Phosphate (72Min BPL) mainly relies on transportation by railroad, and the demand of phosphorite deposits in north China stone generally needs Dian Kuang outer ship satisfied, along with the increase of Rock Phosphate (72Min BPL) freight volume, transportation by railroad pressure strengthens year by year.Rock Phosphate (72Min BPL) is because himself special property-particle, powder are more, in transportation, be easy to the goods surface sliding and produce airborne dust, pollute environment along the line, and exert an influence for locomotive worker affair, power supply department circuit contact system, the operation of insulator, upkeep operation.Accumulate over a long period, on the larger circuit of iron ore traffic capacity, along both side dyed grey by the Rock Phosphate (72Min BPL) dust.The phosphorus that the accumulation of phosphoric causes in transit the dust pollution of the pollution main manifestations of Rock Phosphate (72Min BPL), the edatope pollutes, and enters the eutrophication that produces behind the water body by approach such as rainwater, overland floves.
The pollution of Rock Phosphate (72Min BPL) never effectively is familiar with and is controlled, and the airborne dust that produces in the Rock Phosphate (72Min BPL) transportation can not get effectively controlling always, has also caused the pollution of ground phosphate rock for transportation environment along the line, soil, water body.Simple water spray can solve the airborne dust problem short period of time, but after the moisture evaporation, still can't effectively control airborne dust, and repeatedly water spray is not only wasted a large amount of water resourcess, and labour intensity is large.
The numerous scientific workers of China control dust pollution and have carried out large quantity research.For example CN200610130475.8 discloses a kind of moist type dust-inhibitor, it composed as follows: polyoxyethylene nonylphenol ether: OP-42～15%, OP-154～24%, ethylene glycol 0.5～10%, glycerine 1～10%, Sodium dodecylbenzene sulfonate ABS 0.1～5%, surplus tap water polishing.CN200810212291.5 discloses a kind of railway coal transportation dust-depressor, it composed as follows: synthetic polymer 2-7, modified-cellulose class water-soluble polymers 0.1-5, water 85-95, copper sulfate 0-2.CN200810228074.5 discloses a kind of dust-inhibitor, it composed as follows: water: polyvinyl alcohol redispersion rubber powder: carboxymethyl cellulose=91.5～99.29: 0.5～5: 0.2～3.When it is sprayed at the material surface, can form on the surface continuously and have the duricrust of some strength, the material of dispersion is closed in below the duricrust, thereby has dustproof effect.CN200810006713.3 discloses a kind of powder material dust suppression agent, it composed as follows: 0.1-0.7% water-soluble polyacrylate, 0.1-0.5% polyacrylamide, 0.15-1.5% sodium polyacrylate, 0.5-1.5% tensio-active agent and 97-99% water form.CN200910080877.5 discloses a kind of coal dust depressor, it composed as follows: the Xylo-Mucine of 0.5～1.5 % by weight; 0.5 the carboxyl Starch Sodium of～1.5 % by weight; 0.1 the glycerine of～0.3 % by weight; 96.7 the water of～98.9 % by weight.CN200910265220.6 discloses a kind of coal dust depressor, it composed as follows: sodium lignosulfonate 20%～30%, vinylformic acid 12%～18%, hydrogen peroxide 0.4%～0.6%, calcium chloride 5%, sodium tetraborate 0.5%, sodium methyl silicate 3% and water 43%～59%.CN201019114060.5 discloses a kind of environment protective coal dust suppressant, it composed as follows: 1.0～2.0% modified-cellulose or treated starch, 0.3～3.0% nanoparticle parent and 90.0～98.7% water, its is sprayed or be coated on the coal surface, can make coal form a cured layer on the surface, avoid coal airborne dust loss to dust pollution along the line and coal in railway transport course, and can not cause environmental pollution.The social benefit that transportation by railroad and the existing huge economic benefit of coal customers is also had environment protection.But these dust-inhibitors do not relate to the dust-inhibitor for ground phosphate rock.Because ground phosphate rock has special chemical property and day by day to the having a strong impact on of environment, in the urgent need to high, the economical and practical phosphorus ore dust suppressant of a kind of dust suppression efficient, therefore, the inventor has finished the present invention finally through lot of experiments research.
[summary of the invention]
[technical problem that will solve]
Another object of the present invention provides a kind of phosphorus ore dust suppressant composition.
Another object of the present invention provides a kind of preparation method of described phosphorus ore dust suppressant composition.
[technical scheme]
The present invention is achieved through the following technical solutions.
The present invention relates to a kind of phosphorus ore dust suppressant composition.Described phosphorus ore dust suppressant composition is comprised of following component by weight:
Water-soluble poval 0.5-5 weight part
Guar gum 0.3-1.0 weight part
Sterilant 0.001-0.5 weight part
Tensio-active agent 0.001-1.0 weight part
Water 100-200 weight part.
A preferred embodiment of the invention, described phosphorus ore dust suppressant composition is comprised of following component by weight:
Water-soluble poval 1.0-4.0 weight part
Guar gum 0.4-0.8 weight part
Sterilant 0.01-0.4 weight part
Tensio-active agent 0.01-0.8 weight part
Water 120-180 weight part.
According to another kind of preferred implementation of the present invention, it is comprised of described phosphorus ore dust suppressant composition by weight following component:
Water-soluble poval 1.5-3.0 weight part
Guar gum 0.5-0.7 weight part
Sterilant 0.1-0.3 weight part
Tensio-active agent 0.1-0.6 weight part
Water 140-160 weight part.
According to another kind of preferred implementation of the present invention, described water miscible polyvinyl alcohol is selected from the polyvinyl alcohol of polymerization degree 1600-2500 and alcoholysis degree 80-100.
According to another kind of preferred implementation of the present invention, described sterilant is selected from D581, D580, Sodium Benzoate or phenylformic acid.
According to another kind of preferred implementation of the present invention, described tensio-active agent is selected from Sodium dodecylbenzene sulfonate, cocoanut fatty acid diethanolamide or ermine oleylamide propyl group amine.
The present invention relates to a kind of preparation method of phosphorus ore dust suppressant.The method step is as follows:
A, 0.5-5 weight parts water soluble polyvinyl alcohol obtain a kind of described polyvinyl alcohol solution with the dissolving of 100-200 weight parts water;
B, under agitation toward steps A) slowly add 0.4-0.8 weight part guar gum in the polyvinyl alcohol solution that obtains, continue to stir until guar gum dissolves fully;
C, toward step B) add again 0.001-0.5 weight part disinfectant, 0.001-1.0 weight part tensio-active agent in the solution that obtains, then stir again and obtain uniform solution;
D, allow step C) the solution left standstill 4-8h that obtains, filter, obtain described phosphorus ore dust suppressant.
According to another kind of preferred implementation of the present invention, allow described preparation method's step C) the solution left standstill 5-6h that obtains.
The below will describe the present invention in more detail.
The present invention relates to a kind of phosphorus ore dust suppressant composition.
Phosphorus ore dust suppressant of the present invention is composite by water-soluble high-molecular material polyvinyl alcohol and guar gum, add again sterilant and tensio-active agent, a kind of polymer aqueous dispersions that forms with water dissolution, this dispersion liquid is sprayed at Rock Phosphate (72Min BPL), the degradable polymer adhesive solidification layer of breeze surface formation, this cured layer has some strength and toughness, be subjected to rainwater, the environmental influence that is exposed to the sun is little, also do not affect the Rock Phosphate (72Min BPL) processing treatment.Form the purpose that this cured layer can reach anti-airborne dust on the breeze surface, do not affect the transportation loading and unloading of ore.Phosphorus ore dust suppressant of the present invention can also be widely used in the fields such as the dustproof and grit of other ore dust suppression, road surface is fixing.
Described phosphorus ore dust suppressant composition is comprised of following component by weight:
Water-soluble poval 0.5-5 weight part
Guar gum 0.3-1.0 weight part
Sterilant 0.001-0.5 weight part
Tensio-active agent 0.001-1.0 weight part
Water 100-200 weight part.
Described water-soluble poval is a kind of high molecular polymer, odorless, nontoxic, and outward appearance is white or little yellow is cotton-shaped, sheet or pulverulent solids.Molecular formula is (C
2H
4O)
n, partial alcoholysis polyvinyl alcohol molecule formula is-(C
2H
4O)
n-(C
4H
6O
2)
m-.Polyvinyl alcohol has preferably chemical stability and good insulativity, film-forming properties.Different and slightly variant with alcoholysis degree and viscosity of polyvinyl alcohol water-soluble.
In the present invention, described water-soluble poval is selected from the polyvinyl alcohol of polymerization degree 1600-2500 and alcoholysis degree 80-100.
Preferably, described water-soluble poval is selected from the polyvinyl alcohol of polymerization degree 1700-2400 and alcoholysis degree 85-90.
In composition of the present invention, the content of described water-soluble poval is the 0.5-5 weight part, if the content of described water-soluble poval is lower than 0.5 weight part, then phosphorus ore dust suppressant composition of the present invention can can't play good solidification; If the content of described water-soluble poval is higher than 5 weight parts, then phosphorus ore dust suppressant composition of the present invention can affect dust-inhibitor at the osmotic effect on mineral top layer because viscosity is too high.
Therefore, preferably, the content of described water-soluble poval is the 1.0-4.0 weight part.
More preferably, the content of described water-soluble poval is the 1.5-3.0 weight part.
The water-soluble poval that the present invention uses is product sold in the market, and for example the three-dimensional group company in Shanxi is with trade(brand)name polyvinyl alcohol product sold.
Described guar gum is partly to be obtained by the endosperm behind the seed peeling degerming of leguminous plants guar-bean (Cyamposis tetragonolobus), described endosperm partly carries out drying and crushing, add water, pressurized hydrolysis, then precipitate with 20% ethanol, centrifugation, drying and crushing obtains described guar gum again.Its main component is the polygalactomannan that passes through the glycosidic linkage combination of molecular weight 50,000-800,000, the high molecular hydrocolloid polysaccharide that namely is comprised of semi-lactosi and seminose (1: 2).It is extremely khaki powder of white, can be dispersed in heat or the cold water and form viscous fluid.
In composition of the present invention, the content of described guar gum is the 0.3-1.0 weight part.If the content of described guar gum is lower than 0.3 weight part, then phosphorus ore dust suppressant composition of the present invention can affect solidification effect; If the content of described guar gum is higher than 1.0 weight parts, then phosphorus ore dust suppressant composition meeting of the present invention can't be in the infiltration on mineral top layer because viscosity is too high.
Therefore, preferably, the content of described guar gum is the 0.4-0.8 weight part.
More preferably, the content of described guar gum is the 0.5-0.7 weight part.
The guar gum that the present invention uses is product sold in the market, and for example company of Guangrao six directions chemical industry company limited is with trade(brand)name guar gum product sold.
In the present invention, the purpose of use sterilant is to prevent phosphorus ore dust suppressant rotten and generation foul odour after long-time the placement.Described sterilant is selected from D581, D580, Sodium Benzoate or phenylformic acid.Preferably, described sterilant is selected from D581, D580 or Sodium Benzoate, and more preferably, described sterilant is selected from D581 or D580.
In composition of the present invention, the content of described sterilant is the 0.001-0.5 weight part.If the content of described sterilant is lower than 0.001 weight part, then phosphorus ore dust suppressant composition of the present invention can produce denaturalization phenomenon after long-time the placement; If the content of described sterilant is higher than 0.5 weight part, then can affect phosphorus ore dust suppressant composition cost of the present invention.
Therefore, preferably, the content of described sterilant is the 0.01-0.4 weight part.
More preferably, the content of described sterilant is the 0.1-0.3 weight part.
The sterilant that the present invention uses is product sold in the market, for example the how lucky industry and trade in Jinan company limited is with the D581 product of trade(brand)name hundred suitable guar gum special sterilizing sanitass sale, and company of the how lucky industry and trade in Jinan company limited is with the D580 product of trade(brand)name hundred suitable vegetable jelly special sterilizing sanitass sale.
In the present invention, the affine effect of using the purpose of tensio-active agent to be to promote dust-inhibitor and mineral surface.Described tensio-active agent is selected from Sodium dodecylbenzene sulfonate, cocoanut fatty acid diethanolamide or ermine oleylamide propyl group amine.
In composition of the present invention, the content of described tensio-active agent is the 0.001-1.0 weight part.If the content of described tensio-active agent is lower than 0.001 weight part, then phosphorus ore dust suppressant composition of the present invention can can't reach because the component of tensio-active agent is too low the effect of the affine effect of promoting dust-inhibitor and mineral surface; If the content of described tensio-active agent is higher than 1.0 weight parts, then phosphorus ore dust suppressant composition of the present invention can affect because the component of tensio-active agent is too high solidification effect.
Therefore, preferably, the content of described tensio-active agent is the 0.01-0.8 weight part.
More preferably, the content of described tensio-active agent is the 0.1-0.6 weight part.
The tensio-active agent that the present invention uses is product sold in the market, and for example Nanjing Soviet Union as chemical industry company limited are with the Sodium dodecylbenzene sulfonate of trade(brand)name Sodium dodecylbenzene sulfonate sale; The cocoanut fatty acid diethanolamide that Guangzhou great prosperous chemical industry company limited sells with the trade(brand)name cocoanut fatty acid diethanolamide; The ermine oleylamide propyl group amine that Shanghai profit difficult to understand (OLI) bio tech ltd company sells with the trade(brand)name mild surfactants.
The present invention relates to a kind of preparation method of phosphorus ore dust suppressant.The method step is as follows:
A, 0.5-5 weight parts water soluble polyvinyl alcohol obtain a kind of described polyvinyl alcohol solution with the dissolving of 100-200 weight parts water;
B, under agitation toward steps A) slowly add 0.4-0.8 weight part guar gum in the polyvinyl alcohol solution that obtains, continue to stir until guar gum dissolves fully;
C, toward step B) add again 0.001-0.5 weight part disinfectant, 0.001-1.0 weight part tensio-active agent in the solution that obtains, then stir again and obtain uniform solution;
D, allow step C) the solution left standstill 4-8h that obtains, filter, obtain described phosphorus ore dust suppressant.
Preferably, allow described preparation method's step C) the solution left standstill 5-6h that obtains.
Phosphorus ore dust suppressant of the present invention uses spray appliance to be sprayed on Rock Phosphate (72Min BPL), the breeze surface after dilution, evaporation along with moisture, phosphorus ore dust suppressant of the present invention forms 1-3 centimetre cured layer on Rock Phosphate (72Min BPL), breeze surface, cured layer is bonded together bulk, particle, pulverous Rock Phosphate (72Min BPL), has certain intensity and toughness, under the wind erosion situation, they can establishment ore airborne dust.This cured layer is under the destruction of mechanical force, and possible fragmentation becomes 1-5 centimetre particle, does not affect like this ore transhipment, stores and processing.
The present invention is different, and viscosity, cured layer thickness and the cured layer hardness that forms phosphorus ore dust suppressant is measured.Wherein:
Viscosity is measured according to the GB/T10247 method.
Cured layer thickness is measured according to the general thickness measuring method.
Cured layer hardness is measured according to the pressure testing machine method.
Its test-results is listed in table 1.
Table 1: different viscosity, cured layer thickness and the cured layer measurement of hardness results that form phosphorus ore dust suppressant
Can find out that from application data phosphorus ore dust suppressant is along with the rising of viscosity, formed cured layer thickness reduction, cured layer hardness raises simultaneously.
And, use the above-mentioned different phosphorus ore dust suppressant that forms that the Rock Phosphate (72Min BPL) anti-dust effect is tested.
Test conditions: deflation 5min under the 30m/s wind speed.
Test-results is listed in table 2.
Table 2: the different Rock Phosphate (72Min BPL) anti-dust effects that form phosphorus ore dust suppressant
Phosphorus ore dust suppressant of the present invention is not limited only to the airborne dust control of Rock Phosphate (72Min BPL) and uses, and also can be used for the dustproof of dustproof and other ores in desert treatment, the construction site of soil.Phosphorus ore dust suppressant is nontoxic, have no side effect, can not produce environment and pollute, and cheap, excellent performance, raw material are easy to buy, use compound method simple.
[beneficial effect]
The invention has the beneficial effects as follows: phosphorus ore dust suppressant of the present invention can form the cured layer with some strength and toughness on Rock Phosphate (72Min BPL), breeze surface, bulk, particle, Powdered Rock Phosphate (72Min BPL) are bonded together, thus can establishment ground phosphate rock airborne dust.Phosphorus ore dust suppressant of the present invention also can be used for the dustproof of dustproof and other ores of the desert treatment, construction site of soil, can not produce environment and pollute.
[embodiment]
Embodiment 1: phosphorus ore dust suppressant of the present invention
The preparation method is as follows:
A, 0.5 weight parts water soluble polyvinyl alcohol (polymerization degree 1700, alcoholysis degree 88) obtain a kind of described polyvinyl alcohol solution with the dissolving of 100 weight parts waters;
B, under agitation toward steps A) slowly add 1.0 weight part guar gums in the polyvinyl alcohol solution that obtains, continue to stir until guar gum dissolves fully;
C, toward step B) add again 0.001 weight part D-581 disinfectant, 1.0 weight part cocoanut fatty acid diethanolamide tensio-active agents in the solution that obtains, then stir again and obtain uniform solution;
D, allow step C) the solution left standstill 6h that obtains, filter, obtain described phosphorus ore dust suppressant.
Adopt the method for describing in this manual to measure viscosity 263mPaS, cured layer thickness 11mm and the cured layer hardness 48.2kPa of described phosphorus ore dust suppressant.
The Rock Phosphate (72Min BPL) anti-dust effect wind erosion rate that adopts the method for describing in this manual to measure described phosphorus ore dust suppressant is 0.23%.
Embodiment 2: phosphorus ore dust suppressant of the present invention
The preparation method is as follows:
A, 5 weight parts water soluble polyvinyl alcohols (polymerization degree 2400, alcoholysis degree 88) obtain a kind of described polyvinyl alcohol solution with the dissolving of 200 weight parts waters;
B, under agitation toward steps A) slowly add 0.3 weight part guar gum in the polyvinyl alcohol solution that obtains, continue to stir until guar gum dissolves fully;
C, toward step B) add again 0.5 weight part D-581 disinfectant, 0.001 weight part Sodium dodecylbenzene sulfonate tensio-active agent in the solution that obtains, then stir again and obtain uniform solution;
D, allow step C) the solution left standstill 7h that obtains, filter, obtain described phosphorus ore dust suppressant.
Adopt the method for describing in this manual to measure viscosity 93mPaS, cured layer thickness 17mm and the cured layer hardness 43.6kPa of described phosphorus ore dust suppressant.
The Rock Phosphate (72Min BPL) anti-dust effect wind erosion rate that adopts the method for describing in this manual to measure the phosphorus ore dust suppressant of described phosphorus ore dust suppressant is 0.16%.
Embodiment 3: phosphorus ore dust suppressant of the present invention
The preparation method is as follows:
A, 1.0 weight parts water soluble polyvinyl alcohols (polymerization degree 2400, alcoholysis degree 88) obtain a kind of described polyvinyl alcohol solution with the dissolving of 120 weight parts waters;
B, under agitation toward steps A) slowly add 0.8 weight part guar gum in the polyvinyl alcohol solution that obtains, continue to stir until guar gum dissolves fully;
C, toward step B) add again 0.01 weight part D-580 disinfectant, 0.8 weight part ermine oleylamide propyl group amine tensio-active agent in the solution that obtains, then stir again and obtain uniform solution;
D, allow step C) the solution left standstill 7h that obtains, filter, obtain described phosphorus ore dust suppressant.
Adopt the method for describing in this manual to measure viscosity 183mPaS, cured layer thickness 13mm and the cured layer hardness 57.2kPa of described phosphorus ore dust suppressant.
The Rock Phosphate (72Min BPL) anti-dust effect wind erosion rate that adopts the method for describing in this manual to measure the phosphorus ore dust suppressant of described phosphorus ore dust suppressant is 0.29%.
Embodiment 4: phosphorus ore dust suppressant of the present invention
The preparation method is as follows:
A, 4.0 weight parts water soluble polyvinyl alcohols (polymerization degree 1700, alcoholysis degree 88) obtain a kind of described polyvinyl alcohol solution with the dissolving of 180 weight parts waters;
B, under agitation toward steps A) slowly add 0.4 weight part guar gum in the polyvinyl alcohol solution that obtains, continue to stir until guar gum dissolves fully;
C, toward step B) add again 0.4 weight part D-581 disinfectant, 0.01 weight part cocoanut fatty acid diethanolamide tensio-active agent in the solution that obtains, then stir again and obtain uniform solution;
D, allow step C) the solution left standstill 6h that obtains, filter, obtain described phosphorus ore dust suppressant.
Adopt the method for describing in this manual to measure viscosity 127mPaS, cured layer thickness 14mm and the cured layer hardness 43.2kPa of described phosphorus ore dust suppressant.
The Rock Phosphate (72Min BPL) anti-dust effect wind erosion rate that adopts the method for describing in this manual to measure described phosphorus ore dust suppressant is 0.14%.
Embodiment 5: phosphorus ore dust suppressant of the present invention
The preparation method is as follows:
A, 1.5 weight parts water soluble polyvinyl alcohols (polymerization degree 2400, alcoholysis degree 88) obtain a kind of described polyvinyl alcohol solution with the dissolving of 140 weight parts waters;
B, under agitation toward steps A) slowly add 0.7 weight part guar gum in the polyvinyl alcohol solution that obtains, continue to stir until guar gum dissolves fully;
C, toward step B) add again 0.1 weight part D-581 disinfectant, 0.6 weight part Sodium dodecylbenzene sulfonate tensio-active agent in the solution that obtains, then stir again and obtain uniform solution;
D, allow step C) the solution left standstill 7h that obtains, filter, obtain described phosphorus ore dust suppressant.
Adopt the method for describing in this manual to measure viscosity 153mPaS, cured layer thickness 13mm and the cured layer hardness 62.7kPa of described phosphorus ore dust suppressant.
The Rock Phosphate (72Min BPL) anti-dust effect wind erosion rate that adopts the method for describing in this manual to measure the phosphorus ore dust suppressant of described phosphorus ore dust suppressant is 0.22%.
Embodiment 6: phosphorus ore dust suppressant of the present invention
The preparation method is as follows:
A, 3.0 weight parts water soluble polyvinyl alcohols (polymerization degree 2400, alcoholysis degree 88) obtain a kind of described polyvinyl alcohol solution with the dissolving of 160 weight parts waters;
B, under agitation toward steps A) slowly add 0.5 weight part guar gum in the polyvinyl alcohol solution that obtains, continue to stir until guar gum dissolves fully;
C, toward step B) add again 0.3 weight part D-580 disinfectant, 0.1 weight part ermine oleylamide propyl group amine tensio-active agent in the solution that obtains, then stir again and obtain uniform solution;
D, allow step C) the solution left standstill 7h that obtains, filter, obtain described phosphorus ore dust suppressant.
Adopt the method for describing in this manual to measure the viscosity 105mPaS of described phosphorus ore dust suppressant, cured layer thickness 15 and cured layer hardness 56.7kPa.
The Rock Phosphate (72Min BPL) anti-dust effect wind erosion rate that adopts the method for describing in this manual to measure the phosphorus ore dust suppressant of described phosphorus ore dust suppressant is 0.19%.
The comparative example 1
Use other dust-inhibitor of selling in the market to carry out the dust suppression test, according to embodiment 1-3 in the same method described carried out cured layer thickness and tested with cured layer measurement of hardness and Rock Phosphate (72Min BPL) anti-dust effect, these test-results are listed in the table 3.
Table 3: cured layer thickness, cured layer hardness and anti-dust effect test-results
Result by table 3 can find out that phosphorus ore dust suppressant of the present invention (sequence number 1-3) is compared with prior art (sequence number 4) has the excellent effect such as cured layer is thicker, cured layer hardness is higher, wind erosion rate is much lower.
Claims (8)
1. phosphorus ore dust suppressant composition is characterized in that it is comprised of by weight following component:
2. described phosphorus ore dust suppressant composition according to claim 1 is characterized in that it is comprised of by weight following component:
3. described phosphorus ore dust suppressant composition according to claim 1 is characterized in that it is comprised of by weight following component:
4. described phosphorus ore dust suppressant composition according to claim 1 is characterized in that described water miscible polyvinyl alcohol is selected from the polyvinyl alcohol of polymerization degree 1600-2500 and alcoholysis degree 80-100.
5. described phosphorus ore dust suppressant composition according to claim 1 is characterized in that described sterilant is selected from D581, D580, Sodium Benzoate or phenylformic acid.
6. described phosphorus ore dust suppressant composition according to claim 1 is characterized in that described tensio-active agent is selected from Sodium dodecylbenzene sulfonate, cocoanut fatty acid diethanolamide or ermine oleylamide propyl group amine.
7. the preparation method of a phosphorus ore dust suppressant is characterized in that the method step is as follows:
A, 0.5-5 weight parts water soluble polyvinyl alcohol obtain a kind of described polyvinyl alcohol solution with the dissolving of 100-200 weight parts water;
B, under agitation toward steps A) slowly add 0.3-1.0 weight part guar gum in the polyvinyl alcohol solution that obtains, continue to stir until guar gum dissolves fully;
C, toward step B) add again 0.001-0.5 weight part disinfectant, 0.001-1.0 weight part tensio-active agent in the solution that obtains, then stir again and obtain uniform solution;
D, allow step C) the solution left standstill 4-8h that obtains, filter, obtain described phosphorus ore dust suppressant.
8. preparation method according to claim 7 is characterized in that allowing step C) the solution left standstill 5-6h that obtains.
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| DE102012007827B3 (en) | 2012-04-17 | 2013-07-11 | Bk Giulini Gmbh | Use of a polymer dispersion as a dust control agent |
| CN103497736B (en) * | 2013-08-16 | 2014-10-22 | 北京安平联合环保科技有限公司 | Dust inhibiting agent used during railway transportation process of powdered materials and preparation method thereof |
| CN103540293B (en) * | 2013-10-18 | 2015-03-04 | 王夕刚 | Dust suppressant, and use and preparation method thereof, as well as method for suppressing dust during transportation of ironstone |
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