CN110005463A - A kind of nano combined retardant of high polymer base for preventing and treating gangue spontaneous combustion - Google Patents
A kind of nano combined retardant of high polymer base for preventing and treating gangue spontaneous combustion Download PDFInfo
- Publication number
- CN110005463A CN110005463A CN201910299975.1A CN201910299975A CN110005463A CN 110005463 A CN110005463 A CN 110005463A CN 201910299975 A CN201910299975 A CN 201910299975A CN 110005463 A CN110005463 A CN 110005463A
- Authority
- CN
- China
- Prior art keywords
- retardant
- gangue
- high polymer
- resistanceization
- spontaneous combustion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 36
- 230000002269 spontaneous effect Effects 0.000 title claims abstract description 35
- 229920000642 polymer Polymers 0.000 title claims abstract description 26
- 229920002401 polyacrylamide Polymers 0.000 claims abstract description 55
- 239000000463 material Substances 0.000 claims abstract description 30
- 239000000126 substance Substances 0.000 claims abstract description 24
- 239000013339 polymer-based nanocomposite Substances 0.000 claims abstract description 13
- 239000002114 nanocomposite Substances 0.000 claims abstract description 10
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims abstract description 6
- 239000000920 calcium hydroxide Substances 0.000 claims abstract description 6
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical group [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims abstract description 4
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 claims description 30
- 229910052901 montmorillonite Inorganic materials 0.000 claims description 30
- 230000002265 prevention Effects 0.000 claims description 9
- 238000002360 preparation method Methods 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 35
- 239000003245 coal Substances 0.000 abstract description 27
- 150000001875 compounds Chemical class 0.000 abstract description 18
- 238000005516 engineering process Methods 0.000 abstract description 3
- 239000003063 flame retardant Substances 0.000 abstract description 3
- 238000012545 processing Methods 0.000 abstract description 3
- 239000011575 calcium Substances 0.000 description 39
- 238000002474 experimental method Methods 0.000 description 14
- 238000010521 absorption reaction Methods 0.000 description 12
- 229910052791 calcium Inorganic materials 0.000 description 12
- 238000000034 method Methods 0.000 description 11
- 239000000243 solution Substances 0.000 description 11
- 238000004458 analytical method Methods 0.000 description 10
- 238000005033 Fourier transform infrared spectroscopy Methods 0.000 description 8
- 239000007788 liquid Substances 0.000 description 8
- 230000003647 oxidation Effects 0.000 description 6
- 238000007254 oxidation reaction Methods 0.000 description 6
- 230000036284 oxygen consumption Effects 0.000 description 6
- 238000013329 compounding Methods 0.000 description 5
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 5
- 230000005764 inhibitory process Effects 0.000 description 5
- 101100345757 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) MMT2 gene Proteins 0.000 description 4
- 150000001338 aliphatic hydrocarbons Chemical class 0.000 description 4
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 239000002131 composite material Substances 0.000 description 4
- 230000002687 intercalation Effects 0.000 description 4
- 238000009830 intercalation Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000002689 soil Substances 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- 239000004575 stone Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000002835 absorbance Methods 0.000 description 3
- 238000010835 comparative analysis Methods 0.000 description 3
- 235000013399 edible fruits Nutrition 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000005065 mining Methods 0.000 description 3
- 239000002086 nanomaterial Substances 0.000 description 3
- -1 polypropylene Polymers 0.000 description 3
- 238000004445 quantitative analysis Methods 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- LZZYPRNAOMGNLH-UHFFFAOYSA-M Cetrimonium bromide Chemical compound [Br-].CCCCCCCCCCCCCCCC[N+](C)(C)C LZZYPRNAOMGNLH-UHFFFAOYSA-M 0.000 description 2
- 101150024478 MMT1 gene Proteins 0.000 description 2
- 230000010718 Oxidation Activity Effects 0.000 description 2
- 238000002441 X-ray diffraction Methods 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000000875 corresponding effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000000113 differential scanning calorimetry Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 125000000524 functional group Chemical group 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000002329 infrared spectrum Methods 0.000 description 2
- 230000002401 inhibitory effect Effects 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- UHOVQNZJYSORNB-UHFFFAOYSA-N monobenzene Natural products C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 238000010792 warming Methods 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- HOSGXJWQVBHGLT-UHFFFAOYSA-N 6-hydroxy-3,4-dihydro-1h-quinolin-2-one Chemical group N1C(=O)CCC2=CC(O)=CC=C21 HOSGXJWQVBHGLT-UHFFFAOYSA-N 0.000 description 1
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- MBMLMWLHJBBADN-UHFFFAOYSA-N Ferrous sulfide Chemical compound [Fe]=S MBMLMWLHJBBADN-UHFFFAOYSA-N 0.000 description 1
- 101000878457 Macrocallista nimbosa FMRFamide Proteins 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 230000012010 growth Effects 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000006210 lotion Substances 0.000 description 1
- 238000010801 machine learning Methods 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 description 1
- 235000019394 potassium persulphate Nutrition 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000004451 qualitative analysis Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F5/00—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires
- E21F5/02—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires by wetting or spraying
- E21F5/06—Fluids used for spraying
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Solid Fuels And Fuel-Associated Substances (AREA)
- Fireproofing Substances (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The present invention provides a kind of nano combined retardants of high polymer base for preventing and treating gangue spontaneous combustion, are related to coal mine processing technology field, can effectively improve the resistance effect and resistanceization timeliness of compound retardant, prevent and treat the spontaneous combustion of gangue；The retardant includes high polymer based nano composite material and chemical retardant；The high polymer based nano composite material is polyacrylamide based nano composite material；The chemical retardant is calcium hydroxide.Technical solution provided by the invention be suitable for gangue it is fire-retardant during.
Description
[technical field]
The present invention relates to coal mine processing technology field more particularly to a kind of high polymer base nanometer for preventing and treating gangue spontaneous combustion are multiple
Close retardant.
[background technique]
Gangue is the solid waste of discharge during producing coal, usually contains the combustibles such as troilite, residual coal, wood fragments material
Matter is easy to cause gangue spontaneous combustion.Currently, retardant prevention and treatment gangue spontaneous combustion is a kind of simple, efficiently, economic method.Resistanceization
Agent prevention and treatment gangue spontaneous combustion includes physics resistanceization and chemical resistanceization, and wherein physics resistanceization application range is wider, but physics resistanceization is only
There is preferable resistanceization effect natural early period in gangue；Chemical resistanceization is then only preferable in the natural later period resistanceization effect of gangue, right
The resistanceization of early period is ineffective.Either physics resistanceization or chemical resistanceization all presence resistanceization time not for a long time, resistanceization effect not
Ideal problem.Therefore, how research, which improves retardant resistanceization effect, has important meaning to prevention and treatment gangue spontaneous combustion.
Therefore, it is necessary to design a kind of new retardant, to solve the problems, such as or mitigate said one or multiple.
[summary of the invention]
In view of this, the present invention provides a kind of nano combined retardant of high polymer base for preventing and treating gangue spontaneous combustion, it can
The resistance effect and resistanceization timeliness for effectively improving compound retardant, prevent and treat the spontaneous combustion of gangue.
On the one hand, the present invention provides a kind of nano combined retardant of high polymer base for preventing and treating gangue spontaneous combustion, and feature exists
In the retardant includes high polymer based nano composite material and chemical retardant.
The aspect and any possible implementation manners as described above, it is further provided a kind of implementation, the high polymer
Based nano composite material is polyacrylamide based nano composite material.
The aspect and any possible implementation manners as described above, it is further provided a kind of implementation, the chemistry resistance
Agent is calcium hydroxide.
The aspect and any possible implementation manners as described above, it is further provided a kind of implementation, the high polymer
Based nano composite material and the chemical retardant are solution, and the quality of the high polymer based nano composite material is its solution
2%~4%；The quality of the chemical retardant is the 15%~25% of its solution.
The aspect and any possible implementation manners as described above, it is further provided a kind of implementation, the high polymer
The mass ratio of the solution of based nano composite material and the chemical retardant is 3:20.
The aspect and any possible implementation manners as described above, it is further provided a kind of implementation, the polypropylene
The preparation of amide based nano composite material is obtained after being modified by montmorillonite to polyacrylamide.
On the other hand, the present invention provides the application side of a kind of as above any nano combined retardant of high polymer base
Method, which is characterized in that for preventing or delaying the spontaneous combustion of gangue.
Compared with prior art, the present invention can be obtained including following technical effect: high poly- by the preparation of physics retardant
Object based nano composite material, then compounded with chemical retardant, the resistance effect and resistanceization timeliness of compound retardant are effectively improved, is prevented
Control the spontaneous combustion of gangue.
Certainly, it implements any of the products of the present invention it is not absolutely required to while reaching all the above technical effect.
[Detailed description of the invention]
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for this field
For those of ordinary skill, without creative efforts, it can also be obtained according to these attached drawings other attached drawings.
Fig. 1 (a) is fire box temperature and specimen temperature time history plot；
Fig. 1 (b), (c) and (d) are with the Ca of various concentration (OH)2Fire box temperature and specimen temperature be at any time when for retardant
Between the curve graph that changes；
Fig. 2 (a) and (b) are that the compound retardant of different ratio provided by one embodiment of the present invention participates in burner hearth when resistanceization
Temperature and specimen temperature time history plot；
Fig. 3 is the CO concentration provided by one embodiment of the present invention under the compound retardant Inhibition of various concentration with temperature
The curve graph of variation；
Fig. 4 is the CH provided by one embodiment of the present invention under the compound retardant Inhibition of various concentration4Concentration is with temperature
Spend the curve graph of variation；
Fig. 5 is the oxygen consumption rate provided by one embodiment of the present invention under the compound retardant Inhibition of various concentration with temperature
Spend the curve graph of variation；
Fig. 6 is raw coal spoil sample Fourier transform infrared spectroscopy figure provided by one embodiment of the present invention；
Fig. 7 is PAM/MMT resistanceization gangue sample Fourier transform infrared spectroscopy figure provided by one embodiment of the present invention；
Fig. 8 is raw coal spoil sample Fourier transform infrared spectroscopy provided by one embodiment of the present invention peak matched curve figure；
Fig. 9 is that PAM/MMT resistanceization gangue provided by one embodiment of the present invention sample Fourier transform infrared spectroscopy peak is quasi-
Close curve graph.
[specific embodiment]
For a better understanding of the technical solution of the present invention, being retouched in detail to the embodiment of the present invention with reference to the accompanying drawing
It states.
It will be appreciated that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts it is all its
Its embodiment, shall fall within the protection scope of the present invention.
The term used in embodiments of the present invention is only to be not intended to be limiting merely for for the purpose of describing particular embodiments
The present invention.In the embodiment of the present invention and the "an" of singular used in the attached claims, " described " and "the"
It is also intended to including most forms, unless the context clearly indicates other meaning.
The present invention is directed to prepare high polymer based nano composite material by physics retardant, then compounds and grind with chemical retardant
The nano combined retardant of high polymer base processed, can improve physics retardant PAM only has preferable resistanceization effect in gangue spontaneous combustion early period,
Chemical retardant Ca (OH)2Only, Inhibition impermanent disadvantage preferable in later period resistanceization effect reaches and improves resistanceization effect comprehensively
The effect of fruit.
The present invention is research with Yangquan Mining Area gangue on the Research foundation to gangue theory of spontaneous combustion and Prevention Technique
Object chooses physics retardant polyacrylamide by SEM/DSC, thermogravimetric, Industrial Analysis experimental study its ignition quality
(PAM), chemical retardant Ca (OH) 2 and montmorillonite (MMT), develop it is a kind of simple, efficiently, economic, resistanceization process completely and
Retardant of long duration has carried out resistanceization experimental study.High polymer based nano composite material is not limited to polyacrylamide preparation
Polyacrylamide based nano composite material can also be the nano material of other high polymer bases.
The present invention is studied according to Yangquan Mining Area gangue ignition quality first, carries out system to gangue spontaneous combustion retardant
Theory analysis selects physics retardant polyacrylamide (PAM) and chemical retardant calcium hydroxide (Ca (OH) 2).It is high to improve
The thermal stability of polymers PAM lotion is modified PAM using the montmorillonite (MMT) containing natural nano-material.Modified mistake
Journey is placed in water-bath firstly, 10g montmorillonite (MMT) and 250mL distilled water are mixed in beaker, is existed by magnet rotor
It is vigorously stirred 2h at room temperature, solution is then warming up to 70 DEG C, 12mmol/100g is added dropwise, and (every 100g montmorillonite uses 4.3734g
Cetyl trimethylammonium bromide) cetyl trimethylammonium bromide aqueous solution, after being stirred to react 2h strongly, be cooled to room
Temperature obtains stable intercalation soil suspension, dry to constant weight, obtained intercalation soil powder；Then, 10g acrylamide (PAM) is taken
It is uniformly mixed in beaker with 150ml water, according to the optimal proportion 4:1 of monomer and intercalation soil, takes intercalation soil 2.5g obtained molten
It is added drop-wise in beaker after deionized water, stirs 1h strongly at room temperature after evenly mixing, be added dropwise under stirring
2.5895ml0.1M potassium peroxydisulfate (amount of initiator is the 0.7% of monomer) uniformly mixing, is then placed in 75 DEG C of waters bath with thermostatic control
Polymerization reaction 4h is sealed, at the beginning gentle agitation when polymerization reaction, until stopping stirring after mixed solution uniform, stable.It is cooled to
Room temperature obtains PAM/MMT composite material water emulsion, and for 24 hours, PAM/MMT composite material can be obtained in grinding for drying at 80 DEG C.
Modified polyacrylamide based nano composite material (PAM/MMT) is prepared, is passed through x-ray diffraction experiment (XRD)
PAM/MMT composite material is tested and characterized with differential scanning calorimetry (DSC), rear heat is steady before modified by analysis comparison PAM
It is qualitative.Then, blank, Ca (OH) are prepared respectively2, PAM and PAM/MMT resistanceization gangue sample, to different resistanceization gangue samples
Temperature programmed oxidation experiment is carried out, examines and compares its resistanceization effect.Finally, modified physics retardant PAM/MMT is compound
Material and chemical retardant Ca (OH)2It is compounded, the physical chemistry resistanceization liquid of different ratio is prepared, to different resistanceization gangues
Sample carries out temperature programmed oxidation experiment, determines that optimal physical chemical retardant concentration compounds ratio, PAM/MMT3%-Ca (OH)220% effect is best, and spontaneous combustion critical point temperature increases to 140 DEG C by 100 DEG C compared to raw coal spoil sample, and resistance rate is up to
83.15%.
Embodiment 1: the proportion of compound retardant material determines
By the selection and modified analysis to retardant, retardant used in this experiment is chemical retardant Ca (OH)2, physics
Retardant PAM and high polymer based nano-material PAM/MMT.Ca(OH)2As a kind of common alkaline retardant, run-of-the-mill is dense
Degree resistanceization effect at 20% or so is best.Early period is tested, is tested by crossing point temperature to Ca (OH)2It is different with PAM/MMT
The resistance effect of concentration is substantially estimated, determines its Valid concentration.
This experiment is prepared for raw coal spoil sample, Ca (OH) respectively215% resistanceization sample, Ca (OH)220% resistanceization sample, Ca (OH)225% resistanceization sample, Ca (OH)220%+PAM/MMT1% resistanceization sample, Ca (OH)220%+PAM/MMT2% resistanceization sample.By program liter
Warm oxidation experiment device and SH-X multi way temperature tester are used in combination, and heating rate is 0.5 DEG C/min, and initial temperature is room
Temperature, measures different resistanceization gangue sample temperature and furnace temperature changes over time data.
The mass ratio of high polymer based nano composite material solution and chemical retardant solution is 3:20, and high polymer base nanometer is multiple
The mass concentration of high polymer based nano composite material is 2%~4% in condensation material solution；Ca (OH) in chemical retardant solution2
Mass concentration be 15%~25%.
By fire box temperature and specimen temperature change with time data fitting, fire box temperature and gangue sample center temperature can be obtained
Versus time curve is spent, experimental result is as shown in Figs. 1-2, fire box temperature and specimen temperature under the conditions of respectively different resistanceizations
Time history plot.
By (a), (b), (c) and (d) four figure of Fig. 1 it is found that raw coal spoil sample and various concentration Ca (OH)2Resistanceization bastard coal
Stone sample initial temperature is below furnace temperature, hereafter ramps up and is warming up to gangue temperature more than furnace temperature, crossing point temperature occurs.It is former
Gangue sample, Ca (OH)215% resistanceization sample, Ca (OH)220% resistanceization sample and Ca (OH)2The crossing point temperature of 25% resistanceization sample point
It Wei not be 102.8 DEG C, 108.3 DEG C, 116.8 DEG C and 110.4 DEG C, it is known that various concentration Ca (OH)2Resistanceization gangue sample crosspoint temperature
Degree is all larger than the crossing point temperature of raw coal spoil sample, illustrates that Ca (OH) is added2Retardant have certain flame retardant effect, and with
Ca(OH)2The increase of concentration, crossing point temperature presentation first increase the trend reduced afterwards, illustrate 20%Ca (OH)2Resistance effect want
Better than 10%Ca (OH)2With 15%Ca (OH)2。Ca(OH)2When relative concentration is 20% when concentration is 25% resistanceization effect instead compared with
Difference.
Ca (OH) is selected according to above-mentioned analysis2Concentration is 20%, and 5g (concentration 1%) PAM/MMT is added and is prepared into resistanceization
Gangue sample, known to Fig. 2 (a) Ca (OH)2The crossing point temperature of 20%+PAM/MMT1% resistanceization sample is 117.4 DEG C, and is only added
Add Ca (OH)2The resistance gangue sample that concentration is 20% is of substantially equal compared to crossing point temperature, illustrates that resistanceization effect becomes without obvious
Change；When 10g (concentration 2%) PAM/MMT is added, known to Fig. 2 (b) Ca (OH)2The friendship of 20%+PAM/MMT2% resistanceization sample
Crunode temperature is 142.1 DEG C, with only addition Ca (OH)2The resistance gangue sample that concentration is 20% has obviously compared to crossing point temperature
Raising, illustrate that resistanceization effect is preferable；When 20g (concentration 4%) PAM/MMT is added, discovery stirring compounding resistanceization liquid have compared with
Big resistance, and be filtered substantially anhydrous point to it and filter out, it is contemplated that the wet cooling that resistanceization liquid does not have moisture is fire-retardant
Effect, therefore judge excessive using PAM/MMT.So selecting Ca (OH)2Concentration is 20%, respectively with concentration be 2%, 3% and
4% PAM/MMT is compounded.
Embodiment 2: the compounding of compound retardant material
Corresponding retardant is taken to be each configured to certain density single resistanceization liquid and compounding resistanceization liquid, resistanceization with projection electronic weighing
The concentration and mix proportion scheme of liquid are shown in Table 1.
The concentration and mix proportion scheme table of 1 resistanceization liquid of table
According to resistanceization liquid matched proportion density scheme table 1, preparation experiment gangue sample 1#~7#, according to temperature programming experiment
Experimental procedure carries out temperature programming experiments to 7 groups of samples, records related data, and arranged and corrected, draw it is relevant become
Gesture changes figure, and analyzes parameters such as gas concentrations, summarizes the correlated performance of experiment gangue sample spontaneous combustion.
1) CO concentration changing rule
As obtained by temperature programmed oxidation experiment 1 before 140 DEG C#~7#CO concentration curve, is shown in Fig. 3.From the figure 3, it may be seen that coal
1 before and after spoil sample resistanceization#~7#Sample CO concentration changing rule is almost the same, and as the temperature rises, CO concentration is continuously increased, and
It and is more than all exponentially type growths after certain temperature.This shows PAM/MMT3%-Ca (OH)220% compound retardant resistanceization effect
Fruit is best, PAM/MMT4%-Ca (OH)220% concentration proportioning takes second place, PAM/MMT2%-Ca (OH)220% concentration proportioning is worst.
2)CH4Concentration changing rule
As obtained by temperature programming experiment 1 before 120 DEG C#~7#CH4Concentration curve is shown in Fig. 4.As shown in Figure 4, in coal
In spoil Temperature Programmed Processes, raw coal spoil sample and its CH of resistanceization gangue sample4Concentration all increases as the temperature rises, and
Exponentially type increases after certain temperature.Pass through 5#~7#Resistanceization gangue sample CH4Concentration curve is it is found that PAM/MMT-Ca
(OH)2Compound retardant being capable of significantly more efficient inhibition gangue spontaneous combustion compared to single retardant.Pass through 5#~7#Three kinds of concentration are matched
Than PAM/MMT-Ca (OH)2Compound resistanceization gangue sample CH4Concentration curve, PAM/MMT3%-Ca (OH)220% and PAM/
MMT4%-Ca (OH)220% resistanceization effect is better than PAM/MMT2%-Ca (OH)220% retardant.Moreover, 5#, 7#Resistanceization bastard coal
CH just can be detected at 100 DEG C in stone sample4Gas, and 6#Resistanceization gangue sample generates CH4Temperature when gas is increased to 120 DEG C, says
Bright PAM/MMT3%-Ca (OH)220% compound retardant can preferably inhibit gangue spontaneous combustion, and resistanceization effect is more preferable.
3) oxygen consumption rate
By being calculated 1#~7#Resistanceization gangue sample oxygen consumption rate change curve, as shown in Figure 5.As shown in Figure 5,1#
~7#Gangue sample oxygen consumption rate is all in as the temperature rises to gradually increase trend.5#~7#Compound resistanceization sample oxygen consumption rate
With 1#~4#Gangue sample illustrates that compounding retardant has good inhibiting effect to the spontaneous combustion of gangue compared to there is apparent reduction.
By after 40 DEG C~140 DEG C stages, 140 DEG C, three phases 5 after 180 DEG C#~7#Compounding that resistanceization sample oxygen consumption rate changes can be with
It obtains, PAM/MMT3%-Ca (OH)220% compound retardant resistanceization effect is preferable.It may determine that by analysis, compound retardant
The spontaneous combustion critical-temperature of resistanceization gangue sample is at 140 DEG C or so, and dry and cracked temperature is at 180 DEG C or so.
Application example:
Utilize the anti-gangue spontaneous combustion resistanceization effect of infrared spectrum analysis PAM/MMT composite material.
Gangue sample is tested after infrared spectrometer scans, by controlling software and analysis software accordingly, to infrared
Signal is handled, and is obtained the infrared data of experiment gangue sample, and draw out corresponding spectrogram, using one point method, is passed through suction
The conversion formula A=lg (1/T) of luminosity A and transmitance T obtains absorbance data.
Experimental data is handled by Origin9.4, gangue sample Fourier transform infrared spectroscopy is obtained, sees figure
6 and Fig. 7.Fig. 6 is raw coal spoil sample Fourier transform infrared spectroscopy figure；Fig. 7 is PAM/MMT resistanceization gangue sample Fourier transformation
Infrared spectrogram.
Gangue major absorbance peak ownership table is obtained by analyzing upper figure, is shown in Table 2, so that analysis is to bastard coal before and after resistivityization
Stone sample microstructure and its difference measure the resistance effect of retardant.
2 Yangquan gangue sample major absorbance peak of table belongs to feature
According to Fig. 6 and Fig. 7 and table 2 is combined it is found that mainly containing aromatic hydrocarbon, aliphatic hydrocarbon, hydroxyl and other work in gangue
Property group, correlative study shows to relate generally to side chain and bridged bond in gangue oxidation process, therefore, herein mainly for bastard coal
Aromatic hydrocarbon, aliphatic hydrocarbon, hydroxyl carry out selective analysis in stone.
1) aromatic hydrocarbon.By Fig. 6 and Fig. 7 comparative analysis it is found that after the nano combined retardant of PAM/MMT high polymer base is added
The intensity of gangue sample, methine-CH absorption peak decreases compared with raw coal spoil sample.Substituted benzene C-H absorption peak strength is significantly
It reduces, is that structure is increased so that C-H is reduced instead of the H in benzene class C-H due to the anion in retardant aqueous solution
Stability makes it be not easy to be oxidized during low temperature heating.
2) aliphatic hydrocarbon.By Fig. 6 and Fig. 7 comparative analysis it is found that the gangue sample after resistanceization is compared with raw coal spoil sample-CH2Methylene
Base absorption peak is unobvious, illustrates that its absorption peak strength and content are substantially reduced.Therefore have obviously after retardant being added to fat-based
Inerting effect, the spontaneous combustion tendency of gangue can be effectively reduced.
3) hydroxyl.By Fig. 6 and Fig. 7 comparative analysis it is found that the gangue sample after resistanceization is compared with raw coal spoil sample, infrared waves
3627~3692cm of number-1The number of absorption peak is reduced in range, and the intensity of all-OH absorption peaks is substantially reduced, and thus may be used
Spontaneous combustion to judge-the OH in the nano combined retardant of PAM/MMT high polymer base effective inerting gangue sample, to gangue
There is good resistanceization effect.
Quantitative analysis is carried out using the peak area of infrared spectrum absorpting peak, it is red to Fourier transformation by means of Origin 9.4
External spectrum spectrogram has carried out Gauss (Gaussian) Fitting Analysis, integrates available spectrogram by carrying out to fitting result curve
In each peak total peak area and each peak area, and then analyze the variation feelings of when each functional group content shared by each functional group
Condition.Gained gangue sample Fourier transform infrared spectroscopy peak matched curve figure, is shown in Fig. 8 and Fig. 9 after fitting.Gangue sample infrared light
The area of each characteristic peak and percentage are shown in Table 3 in spectrogram.
3 gangue sample infrared spectrogram principal character peak peak area of table
As can be seen from Table 3, No. 3 absorption peak C=C aromatic rings absorption peaks with respect to other spectral peaks for, area before and after resistanceization
Variation is little.But its percentage obviously increases, and the bastard coal sample after resistanceization is increased compared with raw coal spoil sample by 1.387%
To 3.795%, the stability of gangue is effectively improved.Before and after resistanceization, No. 2 absorption peak methine-CH and No. 7 absorption peak C-
The area of H reduces 1.823 and 6.143 respectively, and opposite raw coal spoil sample reduces 42.52% and 79.41% respectively, inhibits effect
Fruit is obvious.No. 1 and No. 6 hydroxyl group absorption peak areas totally reduce 21.657, and opposite raw coal spoil sample reduces 68.72%.It is logical
Crossing the above quantitative analysis may determine that, after the nano combined retardant of PAM/MMT high polymer base is added, the quantity of active group subtracts
It is few, can effectively inerting gangue oxidation activity, inhibit the spontaneous combustion of gangue.
Therefore, it can be seen that by Fourier transform infrared spectroscopy laboratory qualitative and quantitative analysis, Yangquan Mining Area raw coal spoil
Sample is after the nano combined retardant resistanceization processing of PAM/MMT high polymer base, active function groups aromatic hydrocarbons, the aliphatic hydrocarbon on surface
And hydroxyl isoreactivity group, compared to the raw coal spoil sample of resistance, not only absorption peak strength is substantially reduced, and absorbs peak area
Greatly reduce.This just illustrates, due to the effect of compound retardant, not only inerting gangue surface-active functional group aromatic hydrocarbons, rouge
The oxidation activity of fat hydrocarbon and hydroxyl isoreactivity group, content are also reduced, and largely slow down gangue oxidation certainly
The process of combustion has reached the function and effect for inhibiting gangue spontaneous combustion.
The alloying component machine learning design method that a kind of performance oriented provided by the embodiment of the present application is required above,
It is described in detail.The description of the example is only used to help understand the method for the present application and its core ideas；Meanwhile
For those of ordinary skill in the art, according to the thought of the application, has change in specific embodiments and applications
Become place, in conclusion the contents of this specification should not be construed as limiting the present application.
Some vocabulary has such as been used to censure specific components in specification and claims.Those skilled in the art
, it is to be appreciated that hardware manufacturer may call the same component with different nouns.Present specification and claims are not
In such a way that the difference of title is as component is distinguished, but with the difference of component functionally as the criterion of differentiation.Such as
It is an open language in "comprising", " comprising " of the specification and claims in the whole text mentioned in, therefore " packet should be construed to
Containing/including but not limited to "." substantially " refer within the acceptable error range, those skilled in the art can centainly miss
The technical problem is solved in poor range, basically reaches the technical effect.Specification subsequent descriptions be implement the application compared with
Good embodiment, so the description is being not intended to limit the scope of the present application for the purpose of the rule for illustrating the application.
The protection scope of the application is subject to view the appended claims institute defender.
It should also be noted that, the terms "include", "comprise" or its any other variant are intended to nonexcludability
Include, so that commodity or system including a series of elements not only include those elements, but also including not clear
The other element listed, or further include for this commodity or the intrinsic element of system.In the feelings not limited more
Under condition, the element that is limited by sentence "including a ...", it is not excluded that in the commodity or system for including the element also
There are other identical elements.
It should be appreciated that term "and/or" used herein is only a kind of incidence relation for describing affiliated partner, indicate
There may be three kinds of relationships, for example, A and/or B, can indicate: individualism A, exist simultaneously A and B, individualism B these three
Situation.In addition, character "/" herein, typicallys represent the relationship that forward-backward correlation object is a kind of "or".
Above description shows and describes several preferred embodiments of the present application, but as previously described, it should be understood that the application
Be not limited to forms disclosed herein, should not be regarded as an exclusion of other examples, and can be used for various other combinations,
Modification and environment, and the above teachings or related fields of technology or knowledge can be passed through in application contemplated scope described herein
It is modified.And changes and modifications made by those skilled in the art do not depart from spirit and scope, then it all should be in this Shen
It please be in the protection scope of the appended claims.
Claims (7)
1. a kind of nano combined retardant of high polymer base for preventing and treating gangue spontaneous combustion, which is characterized in that the retardant includes height
Polymers based nano composite material and chemical retardant.
2. the nano combined retardant of high polymer base of prevention and treatment gangue spontaneous combustion according to claim 1, which is characterized in that institute
Stating high polymer based nano composite material is polyacrylamide based nano composite material.
3. the nano combined retardant of high polymer base of prevention and treatment gangue spontaneous combustion according to claim 2, which is characterized in that institute
The preparation for stating polyacrylamide based nano composite material is obtained after being modified by montmorillonite to polyacrylamide.
4. the nano combined retardant of high polymer base of prevention and treatment gangue spontaneous combustion according to claim 1, which is characterized in that institute
Stating chemical retardant is calcium hydroxide.
5. the nano combined retardant of high polymer base of prevention and treatment gangue spontaneous combustion according to claim 1 to 4, feature
It is, the high polymer based nano composite material and the chemical retardant are solution, the nano combined material of high polymer base
The quality of material is the 2%~4% of its solution；The quality of the chemical retardant is the 15%~25% of its solution.
6. the nano combined retardant of high polymer base of prevention and treatment gangue spontaneous combustion according to claim 5, which is characterized in that institute
The mass ratio for stating the solution of high polymer based nano composite material and the chemical retardant is 3:20.
7. the nano combined retardant of high polymer base as described in claim 1-6 is any, which is characterized in that for preventing or delaying
The spontaneous combustion of gangue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910299975.1A CN110005463B (en) | 2019-04-15 | 2019-04-15 | High polymer-based nano composite stopping agent for preventing spontaneous combustion of coal gangue |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910299975.1A CN110005463B (en) | 2019-04-15 | 2019-04-15 | High polymer-based nano composite stopping agent for preventing spontaneous combustion of coal gangue |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110005463A true CN110005463A (en) | 2019-07-12 |
| CN110005463B CN110005463B (en) | 2021-02-05 |
Family
ID=67171886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910299975.1A Active CN110005463B (en) | 2019-04-15 | 2019-04-15 | High polymer-based nano composite stopping agent for preventing spontaneous combustion of coal gangue |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110005463B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111022104A (en) * | 2020-01-15 | 2020-04-17 | 京润矿安科技(北京)有限公司 | Foam interface slow-release stopping agent for coal mine fire prevention and extinguishing |
| CN111841455A (en) * | 2020-07-06 | 2020-10-30 | 北京科技大学 | Oxidation-resistant gel foam for inhibiting spontaneous combustion of coal |
| CN113150483A (en) * | 2021-03-29 | 2021-07-23 | 北京科技大学 | Expansion type nanometer inhibition gel for inhibiting coal spontaneous combustion and preparation method thereof |
| CN113372672A (en) * | 2021-05-21 | 2021-09-10 | 北京科技大学 | Modified antioxidant for inhibiting spontaneous combustion of coal and preparation method thereof |
| CN113563937A (en) * | 2021-07-31 | 2021-10-29 | 北京科技大学 | Preparation method of high polymer-based composite stopping agent for coal mine |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100999996A (en) * | 2006-12-21 | 2007-07-18 | 煤炭科学研究总院重庆分院 | Chemical fire retartant for preventing controlling coil mineral well coal self-igniting |
| CN101092879A (en) * | 2007-07-26 | 2007-12-26 | 康怀宇 | Method for injecting retarder to coal body |
| CN101476479A (en) * | 2009-01-20 | 2009-07-08 | 中国科学技术大学 | Foam type stopping agent for preventing mine coal spontaneous combustion and its use method |
| CN103711514A (en) * | 2013-12-26 | 2014-04-09 | 杭州电子科技大学 | Novel environment-friendly composite stopping agent capable of preventing coal spontaneous combustion and preparing method thereof |
| CN104072667A (en) * | 2014-06-16 | 2014-10-01 | 山东科技大学 | Synthesis method of forest fire extinguishing agent based on multi-component super absorbent nanometer material |
| CN104747228A (en) * | 2015-04-03 | 2015-07-01 | 安徽理工大学 | Coal spontaneous combustion preventing inhibition foam material and preparation method thereof |
-
2019
- 2019-04-15 CN CN201910299975.1A patent/CN110005463B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100999996A (en) * | 2006-12-21 | 2007-07-18 | 煤炭科学研究总院重庆分院 | Chemical fire retartant for preventing controlling coil mineral well coal self-igniting |
| CN101092879A (en) * | 2007-07-26 | 2007-12-26 | 康怀宇 | Method for injecting retarder to coal body |
| CN101476479A (en) * | 2009-01-20 | 2009-07-08 | 中国科学技术大学 | Foam type stopping agent for preventing mine coal spontaneous combustion and its use method |
| CN103711514A (en) * | 2013-12-26 | 2014-04-09 | 杭州电子科技大学 | Novel environment-friendly composite stopping agent capable of preventing coal spontaneous combustion and preparing method thereof |
| CN104072667A (en) * | 2014-06-16 | 2014-10-01 | 山东科技大学 | Synthesis method of forest fire extinguishing agent based on multi-component super absorbent nanometer material |
| CN104747228A (en) * | 2015-04-03 | 2015-07-01 | 安徽理工大学 | Coal spontaneous combustion preventing inhibition foam material and preparation method thereof |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111022104A (en) * | 2020-01-15 | 2020-04-17 | 京润矿安科技(北京)有限公司 | Foam interface slow-release stopping agent for coal mine fire prevention and extinguishing |
| CN111841455A (en) * | 2020-07-06 | 2020-10-30 | 北京科技大学 | Oxidation-resistant gel foam for inhibiting spontaneous combustion of coal |
| CN113150483A (en) * | 2021-03-29 | 2021-07-23 | 北京科技大学 | Expansion type nanometer inhibition gel for inhibiting coal spontaneous combustion and preparation method thereof |
| CN113372672A (en) * | 2021-05-21 | 2021-09-10 | 北京科技大学 | Modified antioxidant for inhibiting spontaneous combustion of coal and preparation method thereof |
| CN113563937A (en) * | 2021-07-31 | 2021-10-29 | 北京科技大学 | Preparation method of high polymer-based composite stopping agent for coal mine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110005463B (en) | 2021-02-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110005463A (en) | A kind of nano combined retardant of high polymer base for preventing and treating gangue spontaneous combustion | |
| Xu et al. | The combustion and pyrolysis process of flame-retardant polystyrene/cobalt-based metal organic frameworks (MOF) nanocomposite | |
| Spörl et al. | Carbon fibers prepared from tailored reversible‐addition‐fragmentation transfer copolymerization‐derived poly (acrylonitrile)‐co‐poly (methylmethacrylate) | |
| Arena et al. | Activity and resistance to leaching of Cu-based catalysts in the wet oxidation of phenol | |
| JP5078613B2 (en) | Flame retardant composition with monomodal particle size distribution based on metal hydroxide and clay | |
| Salem | Effect of calcination temperature on colorant behavior of cobalt-aluminate nano-particles synthesized by combustion technique | |
| Grabsch et al. | The impact of achieving a higher aggregate density on polymer-bridging flocculation | |
| US9982195B2 (en) | Flame retardant, flame retardant composition and shaped body | |
| Jiang et al. | Zinc glycerolate with lanthanum stearate to inhibit the thermal degradation of poly (vinyl chloride) | |
| Lv et al. | Flame retardancy and mechanical properties of EVA nanocomposites based on magnesium hydroxide nanoparticles/microcapsulated red phosphorus | |
| CN101932527B (en) | Assign the hydrotalcite and preparation method thereof of the improved heat resistance of resin | |
| Drevelle et al. | Influence of ammonium polyphosphate on the mechanism of thermal degradation of an acrylic binder resin | |
| CN110198783A (en) | The preparation method of iron acid zinc catalyst and iron acid zinc catalyst prepared therefrom | |
| RU2451044C2 (en) | Method for obtaining additive for coatings, which improves fire-resistance, and end products | |
| Hornsby et al. | Zinc hydroxystannate-coated metal hydroxide fire retardants: fire performance and substrate-coating interactions | |
| Suzuki et al. | The thermal degradation of acrylonitri-lebutadiene-styrene terploymer grafted with methacrylic acid | |
| Castelvetro et al. | Role of anionic and nonionic surfactants on the control of particle size and latex colloidal stability in the seeded emulsion polymerization of butyl methacrylate | |
| Chow et al. | Catalyst displacement assay: a supramolecular approach for the design of smart latent catalysts for pollutant monitoring and removal | |
| Hu et al. | TiO2 powder modified by plasma afterglow: a correlation between active species, microstructure, and optical properties | |
| Cheng et al. | Preparation of P (St-co-MAA)/CeO 2 composite microspheres via surface carboxyl oxidation followed by in situ chemical deposition of CeO 2 and their catalytic application on oxidative degradation of methyl orange | |
| EA003416B1 (en) | Heat treated fischer-tropsch catalyst particles | |
| Sandu et al. | New ways to use the red mud waste as raw material for inorganic-organic hybrid hydrogels | |
| Yang et al. | Nanostructured modification of mineral particle surfaces in Ca (OH) 2–H2O–CO2 system | |
| CN107513200A (en) | Polyethylene/metal hydroxides/nano carbon black fire proofing and preparation method thereof | |
| Li et al. | Ternary flame retardant system based on the in-situ polymerization of ammonium polyphosphate-diatomite-aluminium trihydroxide |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |