CN107880850A - A kind of composite environment-friendly dust suppressant and its preparation and application - Google Patents
A kind of composite environment-friendly dust suppressant and its preparation and application Download PDFInfo
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- CN107880850A CN107880850A CN201711370080.XA CN201711370080A CN107880850A CN 107880850 A CN107880850 A CN 107880850A CN 201711370080 A CN201711370080 A CN 201711370080A CN 107880850 A CN107880850 A CN 107880850A
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- dust suppressant
- composite environment
- friendly
- dust
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K3/00—Materials not provided for elsewhere
- C09K3/22—Materials not provided for elsewhere for dust-laying or dust-absorbing
Abstract
A kind of composite environment-friendly dust suppressant of present invention offer and its preparation method and application, the composite environment-friendly dust suppressant, the gross mass based on dust suppressant, the dust suppressant include each component of following mass percent：Cohere composition 18 60%, coalescence composition 5 20%, hygroscopic agent 15 45%；Wherein, the composition that coheres is polyvinyl alcohol, carboxymethyl cellulose and Na2SiO3The composition of three；The coalescence composition is the composition of polyacrylamide and sodium tripolyphosphate.Composite environment-friendly dust suppressant provided by the invention is easily stored, and cost is cheap, while also has preferable anti-dust effect concurrently；The dust suppression of the composite environment-friendly dust suppressant especially suitable for open coal mine pit road surface.
Description
Technical field
The present invention relates to dust suppressant field, further to the dynamic dust suppressant of environmental protection, is more particularly to applicable to reveal
The composite environment-friendly dust suppressant in its colliery.
Background technology
As China's surface mine production intensity continues to increase, the increasingly raising of Mechanization Level, necessarily cause producing
Dust pollution in operation is on the rise.According to statistics, the dust-producing amount of transporting equipment is first of each strip mining operation equipment, is dew
The maximum dust pollution source in its mine.Road surface airborne dust not only seriously damages the health of staff, but also pollutes mining area
The environment of surrounding, destroy the ecosystem.In addition, airborne dust enters in carrier body, the service life of engine, increase will be shortened
Vehicle maintenance, maintenance cost and fuel consumption.When the concentration of road surface airborne dust is higher, the safe driving of driver is also hindered, causes to hit
The accidents such as car, overturning, directly affect safety in production and the economic benefit in mine.
Motor vehicle caused airborne dust in the process of moving is all from due to more than the 80% of opencut pit dust, therefore,
Solves the dust pollution question in open coal mine pit, the most important thing still will solve motor vehicle caused road in the process of moving
Face airborne dust problem.
Dust-suppression method main at present has：Watering dedusting and dust suppressant dedusting.Dedusting of sprinkling water is mainly thin by wet granulate
Small dried dust, increase its relative density, be bonded to larger particle, be allowed to fly upward under external force.It is this
Method is although simple and easy to do, but weak to the cohesive force of dust, and moisture evaporation is rapid, and anti-dust effect is more of short duration, it is impossible to full
The dust suppression demand in sufficient open coal mine pit；In addition, this method also needs to expend substantial amounts of water resource, and add transport into
This.Although dust suppressant dedusting is better than watering dust removing effects, existing dust suppressant often has the following disadvantages：First, greatly
It is in a liquid state more, is not easy to store；Second, road pavement, the soil of passing vehicle and surrounding enviroment and vegetation etc. after dust suppressant sprinkling
Different degrees of harmful effect be present, more obvious phenomenon is deposited in the road surface for spraying dust suppressant, the vegetation on its periphery
In different degrees of withered and yellow phenomenon.3rd, existing dust suppressant still has much room for improvement in performance of keeping humidity and anti-dust effect etc..The
Four, existing dust suppressant cost is high, undoubtedly adds the cost needed for dust suppression.
As fully visible, how to solve dust suppressant be not easy to store, cost is high, not enough environmental protection, the technology such as anti-dust effect is bad
Problem, it is one of current difficult point urgently to make a breakthrough in this area.
The content of the invention
The present invention is to make up the deficiencies in the prior art, there is provided a kind of composite environment-friendly dust suppressant and its preparation and application.This
It is easily stored to invent the composite environment-friendly dust suppressant provided, and cost is cheap, while also have preferable anti-dust effect concurrently；This is compound
Type ring protects dust suppression of the dust suppressant especially suitable for open coal mine pit road surface.
For the present invention to reach its purpose, the technical scheme of use is as follows：
First aspect present invention provides a kind of composite environment-friendly dust suppressant, the gross mass based on dust suppressant, the dust suppressant
Include each component of following mass percent：Cohere composition 18-60%, coalescence composition 5-20%, hygroscopic agent 15-45%；
Wherein, the composition that coheres is polyvinyl alcohol (PVA), carboxymethyl cellulose (CMC) and Na2SiO3The composition of three；It is described
Coalescence composition is polyacrylamide (PAM) and sodium tripolyphosphate (Na5P3O10) composition.Composite type circular provided by the invention
Dust suppressant is protected, passes through polyvinyl alcohol, carboxymethyl cellulose and Na2SiO3What three combined coheres composition, and polypropylene
The coalescence composition that acid amides and sodium tripolyphosphate combine, with the other components synergy in formula system, each component has
Machine combination is unified and orderly to play a role, and can reach good and lasting anti-dust effect.
The composite environment-friendly dust suppressant of the present invention, it is preferred that the polyvinyl alcohol, carboxymethyl cellulose and Na2SiO3Pressing down
Mass percent in dirt agent respectively is 3-15%, 10-30%, 5-15%, to reach more preferably anti-dust effect.
The composite environment-friendly dust suppressant of the present invention, it is preferred that the polyacrylamide and sodium tripolyphosphate are in dust suppressant
Mass percent respectively be 2-10%, 3-10%, to reach more preferably anti-dust effect.
The composite environment-friendly dust suppressant of the present invention, it is preferred that also each including following mass percent in the dust suppressant
Component：Sodium Polyacrylate (PAA-Na) 1.5-6%, lauryl sodium sulfate (K12) 1-5%.The composite environment-friendly dust suppression of the present invention
Agent, it is preferred that also include the ultra-violet absorber that mass percent is 0.2-1%, the ultraviolet radiation absorption in the dust suppressant
Agent is preferably UV-9.The composite environment-friendly dust suppressant of the present invention, it is preferred that also including mass percent be 6- in the dust suppressant
18% antifreezing agent；Preferably, the antifreezing agent is selected from urea (CH4N2) and one or both of sodium chloride O.
The composite environment-friendly dust suppressant of the present invention, it is preferred that one kind in magnesium chloride, calcium chloride of the hygroscopic agent or
Two kinds.
The composite environment-friendly dust suppressant of the present invention, a kind of preferably in preferred embodiment, total matter based on dust suppressant
Amount, the dust suppressant include each component of following mass percent：Polyvinyl alcohol 3-15%, carboxymethyl cellulose 10-30%,
Na2SiO35-15%, polyacrylamide 2-10%, sodium tripolyphosphate 3-10%, Sodium Polyacrylate 1.5-6%, dodecyl sulphate
Sodium 1-5%, urea 6-18%, UV-90.2-1%, magnesium chloride 15-45%.Pressed down using the composite environment-friendly of the optimization formula system
Dirt agent, there is more preferably anti-dust effect, and good wetting, water conservation can be taken into account, moisture absorption, cohered and the performance such as coalescence, moisturizing week
Phase is longer.In the optimization formula system, larger specific gravity is the cheap inorganic chemistry raw material of cost, and cost is cheap, 100 tons of waterwheel lists
The low several times of car dust suppressant totle drilling cost imported product more similar than market；Preferable anti-dust effect can also be taken into account simultaneously.This is preferred
The composite environment-friendly dust suppressant of formula system, negative effect will not be caused to environment, property is gentle, and (pH is 7 or so, and some are specific real
Apply in example is 6.91 or so)；Find in an experiment, the dust suppressant of inventive formulation system is also not in contact human skin
Excitant phenomenon；In use, the vegetation to periphery, soil etc. will not cause side effect, will not cause withered and yellow phenomenon, and
It is corrosion-free to the tire of equipment.
The composite environment-friendly dust suppressant of the present invention, the raw material in its formula system can be powder or lenticular product.
Second aspect of the present invention provides the preparation method of composite environment-friendly dust suppressant described above, comprises the following steps：
Other raw materials in addition to hygroscopic agent are well mixed, hygroscopic agent is added afterwards and is well mixed, can be given after well mixed
Packaging, preferred packaging is in interior modeling bag, more preferably thick interior modeling bag；It is aged afterwards, the environment that ageing is preferably dried in cool place
Middle progress, digestion time can be 2-10 days, preferably 7-10 days.The dust suppressant preparation technology of the present invention is simple, and product
For paste soluble in water, easily stored and transport, it is diluted with water during use and is sprayed, it is easy to use.
The composite environment-friendly dust suppressant of the present invention, it is a kind of specifically to use in embodiment, at the scene in use, only need by
Dust suppressant adds 1-2 times of water in a reservoir, stirs 3-5 minutes with high speed dispersor, it is possible to be pumped into spraying car water tank, Ran Hou
Water filling at any time in water tank, according to surface conditions, it can be sprayed at any time with flexible modulation extension rate.
Third aspect present invention provides a kind of application, composite environment-friendly dust suppressant described above or preparation described above
Composite environment-friendly dust suppressant made from method is applied to the dust suppression on road surface, is preferably applied to the dust suppression on open coal mine pit road surface.
Technical scheme provided by the invention has the advantages that：
The composite environment-friendly dust suppressant of the present invention, each component in its formula system is at normal temperatures with regard to that can merge into each other into cream
Shape, preparation method is simple and convenient, and is easy to transport and stores.The composite environment-friendly dust suppressant of the present invention is easily soluble in water, dilute
Sprinkling is released, it is easy to use.
The composite environment-friendly dust suppressant of the present invention, cost is cheap and without negative environment effects, especially suitable for open coal mine ore deposit
The dust suppression on road surface is cheated, can reach good and lasting anti-dust effect, relative national standards regulation can be met (such as《Coal industry is dirty
Contaminate thing discharge standard》(GB20426-2006) and《Ambient air quality》(GB3095-2012)).
The composite environment-friendly dust suppressant of the present invention is applied to the existing open coal mine pit road surface normally produced, there is drop
Self raising flour dirt environmental pollution, reduce airborne dust and enter in carrier body, and improve or avoid the oil consumption increase thereby resulted in；Protecting
On the premise of holding road surface anti-dust effect, moreover it is possible to keep the certain confficient of static friction in road surface (confficient of static friction >=0.60), will not go out
Existing skidding.After dust suppressant using the present invention, can also keep the relatively flat on road surface, it is current to vehicle safety serve compared with
Good protective effect.Have the advantages that application cost is low, good economical benefit, there is promotional value.
The dust suppressant using flexible of the present invention, in actual applications, can be according to Changes in weather and the reality of production scheduling
Situation, by adjusting the extension rate of dust suppressant, to obtain required dust suppressant moisture preserving time, regulation and control are very convenient.
Brief description of the drawings
Fig. 1 is the transport section for not carrying out dust suppression measure in open coal mine normal productive process；
Fig. 2 is that outdoor pit road surface of the composite environment-friendly dust suppressant of sprinkling embodiment 1 after 30 hours is having vehicle operation
Surface conditions under state；
Fig. 3 is that outdoor pit road surface of the composite environment-friendly dust suppressant of sprinkling embodiment 1 after 30 hours is run without vehicle
Surface conditions under state；
Fig. 4 is uses the section of watering dust suppression after watering 0.5 hour, its surface conditions；
Fig. 5 is that the adjacent segments in the watering dust suppression section have used the composite environment-friendly dust suppressant 2 of the embodiment of the present invention 2 small
When after surface conditions
Embodiment
In order to be better understood from technical scheme, present disclosure is expanded on further with reference to embodiment,
But present disclosure is not limited only to following examples.
It is marketable material if raw materials used not specified in embodiment.
Embodiment 1
Embodiment 1 prepares embodiment for the composite environment-friendly dust suppressant of the present invention, and its formula includes following mass percent
Each component：
Polyvinyl alcohol 10%, carboxymethyl cellulose 20%, Na2SiO310%th, polyacrylamide 7%, sodium tripolyphosphate
6%th, Sodium Polyacrylate 4%, lauryl sodium sulfate 3%, urea 14%, UV-90.8%th, magnesium chloride 25.2%.
The preparation method of the composite environment-friendly dust suppressant of embodiment 1 is as follows：All raw materials in addition to magnesium chloride are mixed
Stirred to obtain semi-finished product, then semi-finished product and magnesium chloride are mixed evenly；Packed afterwards with interior modeling bag, sealing is rearmounted
Deposit, be aged in the cool place place of drying；Ageing obtains body of paste, as finished product after seven days.By product and water according to mass ratio
2:100 are diluted, and its pH value is 6.91.
Embodiment 2
Embodiment 2 prepares embodiment for the composite environment-friendly dust suppressant of the present invention, and its formula includes following mass percent
Each component：
Polyvinyl alcohol 3%, carboxymethyl cellulose 30%, Na2SiO35%th, polyacrylamide 10%, sodium tripolyphosphate 3%,
Sodium Polyacrylate 6%, lauryl sodium sulfate 1%, urea 18%, UV-90.2%th, magnesium chloride 23.8%.
The preparation method of the composite environment-friendly dust suppressant of embodiment 2 is as follows：All raw materials in addition to magnesium chloride are mixed
Stirred to obtain semi-finished product, then semi-finished product and magnesium chloride are mixed evenly；Packed afterwards with interior modeling bag, sealing is rearmounted
Deposit, be aged in the cool place place of drying；Ageing obtains body of paste, as finished product after seven days.By product and water according to mass ratio
2:100 are diluted, and its pH value is 6.9.
Embodiment 3
Embodiment 3 prepares embodiment for the composite environment-friendly dust suppressant of the present invention, and its formula includes following mass percent
Each component：
Polyvinyl alcohol 15%, carboxymethyl cellulose 10%, Na2SiO315%th, polyacrylamide 2%, sodium tripolyphosphate
10%th, Sodium Polyacrylate 1.5%, lauryl sodium sulfate 5%, urea 6%, UV-91%th, magnesium chloride 34.5%.
The preparation method of the composite environment-friendly dust suppressant of embodiment 3 is as follows：All raw materials in addition to magnesium chloride are mixed
Stirred to obtain semi-finished product, then semi-finished product and magnesium chloride are mixed evenly；Packed afterwards with interior modeling bag, sealing is rearmounted
Deposit, be aged in the cool place place of drying；Ageing obtains body of paste, as finished product in 48 hours.By product and water according to mass ratio
2:100 are diluted, and its pH value is 6.9.
Application examples
1st, dust suppressant application examples：
Example 1-3 composite environment-friendly dust suppressant, add water 1 times (quality), with scattered 5 points of the stirring of high speed dispersor
Clock, it is completely dissolved.It is pumped into afterwards in spraying car water tank, water filling dilution 50 times (quality), is sprayed on certain open coal mine respectively not
Breaking section, fountain height 10kg/m2。
2nd, the contrast application examples of watering dust suppression
Dust suppression is carried out by the way of watering, is sprayed in the adjacent segments of embodiment 1.Watering amount is 20kg/m2。
Experimental result：
Referring to Fig. 1-5.
Fig. 1 is the transport section for not carrying out dust suppression measure in open coal mine normal productive process, it is seen that its airborne dust is very tight
Weight.
Fig. 2 and Fig. 3 is respectively that outdoor pit road surface of the composite environment-friendly dust suppressant of sprinkling embodiment 1 after 30 hours is having
Under travel condition of vehicle and without the surface conditions under travel condition of vehicle；It can be seen that regardless of whether there is vehicle by the way that anti-dust effect is all
Very significantly, dust raising phenomenon is had no.The result of embodiment 2-3 and embodiment 1 is basically identical, repeats no more.
Fig. 4 is uses the section of watering dust suppression after watering 0.5 hour, its surface conditions, it is seen that its airborne dust is serious, fails
Obtain good anti-dust effect；And the adjacent segments that Fig. 5 is the watering dust suppression section have used the compound of the embodiment of the present invention 2
Surface conditions of the environmentally friendly dust suppressant after 2 hours, comparison diagram 4 is visible with Fig. 5, and the anti-dust effect contrast ten of dust suppressant of the present invention is clearly demarcated
Aobvious, road surface has no airborne dust.
In application experiment, the road surface for having sprayed 1-3 dust suppressants of the embodiment of the present invention is detected, finds keeping road
On the premise of the anti-dust effect of face, road surface confficient of static friction >=0.60 can be kept, is not in skidding, and uses dust suppression
After agent, the relatively flat on road surface is also maintained, it is current to vehicle safety to serve preferable protective effect.1- of the embodiment of the present invention
Section after 3 dust suppressant use, the TSP of its transporting equipment operation area meet《Ambient air quality》(GB3095-
2012) secondary standard (50 ＜ PM2.5 ＜ 100).
The dilution of embodiment 1-3 dust suppressants is detected, met《Coal industry pollutant emission standard》
(GB20426-2006) emission limit in；And it is harmless to people, livestock, vegetation after dust suppressant use, to the tire of equipment without
Corrosion.
It will be understood by those skilled in the art that under the teaching of this specification, the present invention can be made some modifications or
Adjustment.These modifications or adjustment should also be as within the scope of the claims in the present invention.
Claims (10)
1. a kind of composite environment-friendly dust suppressant, it is characterised in that the gross mass based on dust suppressant, the dust suppressant include following matter
Measure each component of percentage：Cohere composition 18-60%, coalescence composition 5-20%, hygroscopic agent 15-45%；Wherein, it is described glutinous
Knot composition is polyvinyl alcohol, carboxymethyl cellulose and Na2SiO3The composition of three；The coalescence composition is polyacrylamide
The composition of amine and sodium tripolyphosphate.
2. composite environment-friendly dust suppressant according to claim 1, it is characterised in that the polyvinyl alcohol, carboxymethyl cellulose
Element and Na2SiO3Mass percent in dust suppressant respectively is 3-15%, 10-30%, 5-15%.
3. composite environment-friendly dust suppressant according to claim 1, it is characterised in that the polyacrylamide and tripolyphosphate
Mass percent of the sodium in dust suppressant respectively is 2-10%, 3-10%.
4. according to the composite environment-friendly dust suppressant described in claim any one of 1-3, it is characterised in that also wrapped in the dust suppressant
Include each component of following mass percent：Sodium Polyacrylate 1.5-6%, lauryl sodium sulfate 1-5%.
5. according to the composite environment-friendly dust suppressant described in claim any one of 1-3, it is characterised in that also wrapped in the dust suppressant
The ultra-violet absorber that mass percent is 0.2-1% is included, the ultra-violet absorber is preferably UV-9。
6. according to the composite environment-friendly dust suppressant described in claim any one of 1-3, it is characterised in that also wrapped in the dust suppressant
Include the antifreezing agent that mass percent is 6-18%；Preferably, the antifreezing agent is selected from one or both of urea and sodium chloride.
7. according to the composite environment-friendly dust suppressant described in claim any one of 1-3, it is characterised in that the hygroscopic agent is chlorination
One or both of magnesium, calcium chloride.
8. composite environment-friendly dust suppressant according to claim 1, it is characterised in that the gross mass based on dust suppressant, it is described
Dust suppressant includes each component of following mass percent：Polyvinyl alcohol 3-15%, carboxymethyl cellulose 10-30%, Na2SiO35-
15%th, polyacrylamide 2-10%, sodium tripolyphosphate 3-10%, Sodium Polyacrylate 1.5-6%, lauryl sodium sulfate 1-5%,
Urea 6-18%, UV-90.2-1%, magnesium chloride 15-45%.
9. the preparation method of the composite environment-friendly dust suppressant as described in claim any one of 1-8, it is characterised in that including as follows
Step：Other raw materials in addition to hygroscopic agent are well mixed, hygroscopic agent is added afterwards and is well mixed, be then aged.
10. one kind application, it is characterised in that composite environment-friendly dust suppressant or claim 9 described in claim any one of 1-8
Composite environment-friendly dust suppressant made from described preparation method is applied to the dust suppression on road surface, is preferably applied to open coal mine pit road
The dust suppression in face.
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| CN201711370080.XA CN107880850B (en) | 2017-12-19 | 2017-12-19 | Composite environment-friendly dust suppressant and preparation and application thereof |
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| CN201711370080.XA CN107880850B (en) | 2017-12-19 | 2017-12-19 | Composite environment-friendly dust suppressant and preparation and application thereof |
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| CN107880850A true CN107880850A (en) | 2018-04-06 |
| CN107880850B CN107880850B (en) | 2020-06-23 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111073600A (en) * | 2019-12-26 | 2020-04-28 | 神华准格尔能源有限责任公司 | Environment-friendly dust suppressant applied to non-disturbance area of strip mine and preparation method thereof |
| CN111662680A (en) * | 2020-02-05 | 2020-09-15 | 南通乐尔环保科技有限公司 | Efficient environment-friendly dust suppressant and preparation method thereof |
| CN113249094A (en) * | 2020-09-25 | 2021-08-13 | 兰州天际环境保护有限公司 | Wetting type composite pavement dust suppressant and using method thereof |
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| CN111073600A (en) * | 2019-12-26 | 2020-04-28 | 神华准格尔能源有限责任公司 | Environment-friendly dust suppressant applied to non-disturbance area of strip mine and preparation method thereof |
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| CN113249094A (en) * | 2020-09-25 | 2021-08-13 | 兰州天际环境保护有限公司 | Wetting type composite pavement dust suppressant and using method thereof |
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| CN107880850B (en) | 2020-06-23 |
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