CN106089288B - A kind of preparation method for the modified phosphate potassium dihydrogen Explosion suppressant that absorbs heat - Google Patents
A kind of preparation method for the modified phosphate potassium dihydrogen Explosion suppressant that absorbs heat Download PDFInfo
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- CN106089288B CN106089288B CN201610469745.1A CN201610469745A CN106089288B CN 106089288 B CN106089288 B CN 106089288B CN 201610469745 A CN201610469745 A CN 201610469745A CN 106089288 B CN106089288 B CN 106089288B
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- 238000004880 explosion Methods 0.000 title claims abstract description 37
- 238000002360 preparation method Methods 0.000 title claims abstract description 17
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 12
- LWIHDJKSTIGBAC-UHFFFAOYSA-K tripotassium phosphate Chemical class [K+].[K+].[K+].[O-]P([O-])([O-])=O LWIHDJKSTIGBAC-UHFFFAOYSA-K 0.000 title claims abstract description 12
- 238000010521 absorption reaction Methods 0.000 claims abstract description 22
- 238000006243 chemical reaction Methods 0.000 claims abstract description 10
- 235000010413 sodium alginate Nutrition 0.000 claims abstract description 8
- 239000007788 liquid Substances 0.000 claims description 30
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 14
- 235000019796 monopotassium phosphate Nutrition 0.000 claims description 14
- 230000004048 modification Effects 0.000 claims description 13
- 238000012986 modification Methods 0.000 claims description 13
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 12
- 238000007711 solidification Methods 0.000 claims description 12
- 230000008023 solidification Effects 0.000 claims description 12
- 229910000402 monopotassium phosphate Inorganic materials 0.000 claims description 11
- PJNZPQUBCPKICU-UHFFFAOYSA-N phosphoric acid;potassium Chemical compound [K].OP(O)(O)=O PJNZPQUBCPKICU-UHFFFAOYSA-N 0.000 claims description 11
- 230000004044 response Effects 0.000 claims description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 8
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 7
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims description 6
- 229920001661 Chitosan Polymers 0.000 claims description 6
- 229960000583 acetic acid Drugs 0.000 claims description 6
- -1 alkyl phenol Chemical compound 0.000 claims description 6
- 239000001110 calcium chloride Substances 0.000 claims description 6
- 229910001628 calcium chloride Inorganic materials 0.000 claims description 6
- 239000006229 carbon black Substances 0.000 claims description 6
- 235000019241 carbon black Nutrition 0.000 claims description 6
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims description 6
- 239000012065 filter cake Substances 0.000 claims description 6
- 239000012362 glacial acetic acid Substances 0.000 claims description 6
- 239000010445 mica Substances 0.000 claims description 6
- 229910052618 mica group Inorganic materials 0.000 claims description 6
- 229940051841 polyoxyethylene ether Drugs 0.000 claims description 6
- 229920000056 polyoxyethylene ether Polymers 0.000 claims description 6
- 239000003643 water by type Substances 0.000 claims description 6
- 238000009413 insulation Methods 0.000 claims description 5
- 239000008236 heating water Substances 0.000 claims description 3
- GNSKLFRGEWLPPA-UHFFFAOYSA-M potassium dihydrogen phosphate Chemical class [K+].OP(O)([O-])=O GNSKLFRGEWLPPA-UHFFFAOYSA-M 0.000 claims description 3
- 239000002360 explosive Substances 0.000 abstract description 10
- 238000000034 method Methods 0.000 abstract description 7
- 239000000126 substance Substances 0.000 abstract description 6
- 230000007547 defect Effects 0.000 abstract description 3
- 238000002844 melting Methods 0.000 abstract description 3
- 230000008018 melting Effects 0.000 abstract description 3
- IXPNQXFRVYWDDI-UHFFFAOYSA-N 1-methyl-2,4-dioxo-1,3-diazinane-5-carboximidamide Chemical compound CN1CC(C(N)=N)C(=O)NC1=O IXPNQXFRVYWDDI-UHFFFAOYSA-N 0.000 abstract description 2
- 239000003676 hair preparation Substances 0.000 abstract description 2
- 239000004005 microsphere Substances 0.000 abstract description 2
- 239000002245 particle Substances 0.000 abstract description 2
- 230000001681 protective effect Effects 0.000 abstract description 2
- 239000000661 sodium alginate Substances 0.000 abstract description 2
- 229940005550 sodium alginate Drugs 0.000 abstract description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 6
- 239000011591 potassium Substances 0.000 description 6
- 229910052700 potassium Inorganic materials 0.000 description 6
- 239000007789 gas Substances 0.000 description 5
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000011574 phosphorus Substances 0.000 description 3
- 229910052698 phosphorus Inorganic materials 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 150000001350 alkyl halides Chemical class 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- SEGLCEQVOFDUPX-UHFFFAOYSA-N di-(2-ethylhexyl)phosphoric acid Chemical compound CCCCC(CC)COP(O)(=O)OCC(CC)CCCC SEGLCEQVOFDUPX-UHFFFAOYSA-N 0.000 description 2
- 150000002431 hydrogen Chemical class 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000012188 paraffin wax Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- LFVGISIMTYGQHF-UHFFFAOYSA-N ammonium dihydrogen phosphate Chemical compound [NH4+].OP(O)([O-])=O LFVGISIMTYGQHF-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000004807 localization Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 239000011736 potassium bicarbonate Substances 0.000 description 1
- 229910000028 potassium bicarbonate Inorganic materials 0.000 description 1
- TYJJADVDDVDEDZ-UHFFFAOYSA-M potassium hydrogencarbonate Chemical compound [K+].OC([O-])=O TYJJADVDDVDEDZ-UHFFFAOYSA-M 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 229910052905 tridymite Inorganic materials 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
- E21F5/08—Rock dusting of mines; Depositing other protective substances
- E21F5/12—Composition of rock dust
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)
- Cosmetics (AREA)
Abstract
The present invention relates to a kind of preparation methods of modified phosphate potassium dihydrogen Explosion suppressant that absorbs heat, and belong to Explosion suppressant preparation technical field.For preparing Explosion suppressant in use at present, if explosive substance rate of heat release is more than heat loss rate, reaction process constantly accelerates, constantly circulation is until explode, the defect that midway but can not effectively contain, by the way that sodium alginate is compounded with atoleine, by the way that it is effectively coated to Explosion suppressant surface after homogeneous, form the micro-sphere structure for the melting that can absorb heat, in explosive heat release aggravation, effective heat absorption melting is simultaneously effectively datonation-inhibition, prevent explosive substance because of the method for accident explosive caused by unexpected heat release, the heat absorption modified phosphate potassium dihydrogen Explosion suppressant highest of this hair preparation is resistant to temperature up to 285~300 DEG C, soilless sticking and caking phenomenon between Explosion suppressant particle, and preparation process is simple, it is environmentally protective, no pollution to the environment.
Description
Technical field
The present invention relates to a kind of preparation methods of modified phosphate potassium dihydrogen Explosion suppressant that absorbs heat, and belong to Explosion suppressant technology of preparing neck
Domain.
Background technique
Coal dust or gas explosion have the characteristics that combustible have a very wide distribution, energy release time it is long, in blast process
Often because the effect of barriers such as execute-in-place equipment and there is a phenomenon where flame acceleration, in flame and blast pressure wave
Under coupling, sphere of action and the disaster degree of explosion increase.Coal mining accident is administered, in addition to reinforcing to gas and fire
The monitoring capability and safety supervision management in source occur outside, to take and put out a fire datonation-inhibition measure effectively to reduce accident to prevent accident
In casualty loss also seem particularly significant.Flame proof and datonation-inhibition technology are to study more one of control measure at present.Datonation-inhibition
In technology, the material used as Explosion suppressant mainly has water, alkyl halide, water to add alkyl halide, inorganic salts powder etc., wherein can have
It is research hotspot that effect, which inhibits the powder explosion-suppressing material of the subsequent explosion of underground, such as SiO2、NaCl、KCl、NH4H2PO4、KHCO3、
NaHCO3、CaCO3、CO(NH2)2Equal powders.
Thermal response mechanism refers to that explosive substance is heated and chemically reacts, and automatically speeds up until generating explode one
Kind phenomenon, it then follows law of conservation of energy and the first law of thermodynamics physically.When rate of heat release is more than in chemical reaction system
When heat loss rate, hot balance phenomenon increases rate of heat generation with the raising exponentially of temperature, to release more heat
Amount accelerates system heating, and reaction process constantly accelerates, and constantly recycles above procedure until exploding.The opposite envelope of this explanation
Gas mixed gas system can only accommodate certain energy in the space closed, when the heat localization that thermal response generates makes system self-energy
More than the threshold value, gas mixed gas is detonated.So heat can be absorbed rapidly by preparing one kind, the suppression of thermal response explosion is reduced
Detonator is necessary.
Summary of the invention
The technical problems to be solved by the invention: for Explosion suppressant is prepared in use at present, if explosive substance
When rate of heat release is more than heat loss rate, reaction process constantly accelerates, and constantly for circulation until exploding, midway but can not be effective
The defect of containment provides one kind by compounding sodium alginate with atoleine, and by after homogeneous, by it, effectively cladding extremely presses down
Detonator surface forms the micro-sphere structure for the melting that can absorb heat, and in explosive heat release aggravation, effective heat absorption melts and effectively presses down
It is quick-fried, prevent the explosive substance because of the method for accident explosive caused by unexpected heat release, very good solution prepares Explosion suppressant at present
In use, if explosive substance rate of heat release is more than heat loss rate, reaction process constantly accelerates, and constantly circulation is straight
To exploding, defect that midway but can not effectively contain.
In order to solve the above technical problems, the present invention is using technical solution as described below:
(1) according to parts by weight, 25~30 parts of sodium alginates, 65~70 parts of deionized waters, 30~35 parts of liquid are weighed respectively
Body paraffin and 5~10 parts of alkyl phenol polyoxyethylene ether are placed in conical flask, at 8000~10000r/min equal qualitative response 5~
10min is prepared into homogeneous mixed liquor；
(2) again according to parts by weight, 5~10 parts of chitosans, 45~50 parts of glacial acetic acid and 5~10 parts of calcium chloride are weighed respectively
It is placed in a beaker, is stirred and is prepared into modified solidification liquid, then 1:5 in mass ratio, by the homogeneous mixing drop of above-mentioned preparation
It adds in modified solidification liquid, control time for adding is that 10~15min is stirred 10 at 45~60 DEG C after being added dropwise to complete
~15min is prepared into heat absorption modification liquid, spare；
(3) potassium dihydrogen phosphate is placed at 65~80 DEG C dry 6~8h and is prepared into dry potassium dihydrogen phosphate, then by weight
Number meter weighs 35~40 parts of dry potassium dihydrogen phosphates, 5~10 parts of calcium carbonate, 2~3 parts of white carbon blacks, 2~3 parts of talcum powder respectively
It is placed in three-necked flask with 1~2 part of mica sheet, 25~30min of heating water bath at 45~60 DEG C, is prepared into Explosion suppressant mixing
Liquid；
(4) heat absorption modification liquid prepared by step (2) is added dropwise in above-mentioned Explosion suppressant mixed liquor, 45 by 1:8 in mass ratio
Water-bath is stirred 10~15min at~60 DEG C, then ultrasonic disperse handles 10~15min at 200~300W, and then heat preservation is anti-
After answering 1~2h, after standing is cooled to room temperature, filter cake is filtered and collects, dry 6~8h, can be prepared into one at 55~60 DEG C
Kind heat absorption modified phosphate potassium dihydrogen Explosion suppressant.
Application method of the invention is: on the coal surface of accumulation, the heat absorption modified phosphate potassium dihydrogen of above-mentioned preparation being pressed down
Detonator is thrown to its surface, and control injected volume is 1.5~2.5kg/m2。
The present invention is compared with other methods, and advantageous effects are:
(1) the heat absorption modified phosphate potassium dihydrogen Explosion suppressant highest of this hair preparation is resistant to temperature up to 285~300 DEG C, datonation-inhibition
Soilless sticking and caking phenomenon between agent particle；
(2) preparation process of the present invention is simple, environmentally protective, no pollution to the environment.
Specific embodiment
First according to parts by weight, 25~30 parts of sodium alginates, 65~70 parts of deionized waters, 30~35 parts of liquid are weighed respectively
Body paraffin and 5~10 parts of alkyl phenol polyoxyethylene ether are placed in conical flask, at 8000~10000r/min equal qualitative response 5~
10min is prepared into homogeneous mixed liquor；Again according to parts by weight, 5~10 parts of chitosans, 45~50 parts of glacial acetic acid and 5 are weighed respectively
~10 parts of calcium chloride are placed in a beaker, and are stirred and are prepared into modified solidification liquid, then 1:5 in mass ratio, by above-mentioned preparation
Homogeneous mixed liquor is added dropwise in modified solidification liquid, and control time for adding is 10~15min, after being added dropwise to complete, at 45~60 DEG C
Under be stirred 10~15min, be prepared into heat absorption modification liquid, it is spare；Potassium dihydrogen phosphate is placed at 65~80 DEG C dry 6~8h
It is prepared into dry potassium dihydrogen phosphate, then according to parts by weight, weighs 35~40 parts of dry potassium dihydrogen phosphates, 5~10 parts respectively
Calcium carbonate, 2~3 parts of white carbon blacks, 2~3 parts of talcum powder and 1~2 part of mica sheet are placed in three-necked flask, the water-bath at 45~60 DEG C
25~30min is heated, Explosion suppressant mixed liquor is prepared into；Heat absorption modification liquid is added dropwise to above-mentioned Explosion suppressant and mixed by 1:8 in mass ratio
In liquid, water-bath is stirred 10~15min at 45~60 DEG C, then ultrasonic disperse handles 10~15min at 200~300W,
After 1~2h of subsequent insulation reaction, after standing is cooled to room temperature, filter cake is filtered and collects, dry 6~8h at 55~60 DEG C, i.e.,
A kind of heat absorption modified phosphate potassium dihydrogen Explosion suppressant can be prepared into.
Example 1
First according to parts by weight, 25 parts of sodium alginates, 65 parts of deionized waters, 30 parts of atoleines and 5 parts are weighed respectively
Alkyl phenol polyoxyethylene ether is placed in conical flask, and equal qualitative response 5min, is prepared into homogeneous mixed liquor at 8000r/min；Again
According to parts by weight, 5 parts of chitosans, 45 parts of glacial acetic acid and 5 parts of calcium chloride are weighed respectively to be placed in a beaker, be stirred and be prepared into
Modified solidification liquid, then 1:5 in mass ratio, the homogeneous mixed liquor of above-mentioned preparation is added dropwise in modified solidification liquid, and control is added dropwise
Time is 10min, after being added dropwise to complete, is stirred 10min at 45 DEG C, is prepared into heat absorption modification liquid, spare；By di(2-ethylhexyl)phosphate
Hydrogen potassium is placed at 65 DEG C dry 6h and is prepared into dry potassium dihydrogen phosphate, then according to parts by weight, weighs 35 parts of dry phosphorus respectively
Acid dihydride potassium, 5 parts of calcium carbonate, 2 parts of white carbon blacks, 2 parts of talcum powder and 1 part of mica sheet are placed in three-necked flask, the water-bath at 45 DEG C
25min is heated, Explosion suppressant mixed liquor is prepared into；Heat absorption modification liquid is added dropwise to above-mentioned Explosion suppressant mixed liquor by 1:8 in mass ratio
In, water-bath is stirred 10min at 45 DEG C, then at 200W after ultrasonic disperse processing 10min, subsequent insulation reaction 1h, quiet
It sets after being cooled to room temperature, filters and collect filter cake, dry 6h, can be prepared into a kind of heat absorption modified phosphate potassium dihydrogen at 55 DEG C
The preparation method of Explosion suppressant.
Example 2
First according to parts by weight, 27 parts of sodium alginates, 67 parts of deionized waters, 32 parts of atoleines and 7 parts are weighed respectively
Alkyl phenol polyoxyethylene ether is placed in conical flask, and equal qualitative response 7min, is prepared into homogeneous mixed liquor at 9000r/min；Again
According to parts by weight, 8 parts of chitosans, 47 parts of glacial acetic acid and 7 parts of calcium chloride are weighed respectively to be placed in a beaker, be stirred and be prepared into
Modified solidification liquid, then 1:5 in mass ratio, the homogeneous mixed liquor of above-mentioned preparation is added dropwise in modified solidification liquid, and control is added dropwise
Time is 12min, after being added dropwise to complete, is stirred 12min at 47 DEG C, is prepared into heat absorption modification liquid, spare；By di(2-ethylhexyl)phosphate
Hydrogen potassium is placed at 67 DEG C dry 7h and is prepared into dry potassium dihydrogen phosphate, then according to parts by weight, weighs 37 parts of dry phosphorus respectively
Acid dihydride potassium, 7 parts of calcium carbonate, 2 parts of white carbon blacks, 3 parts of talcum powder and 1 part of mica sheet are placed in three-necked flask, the water-bath at 47 DEG C
27min is heated, Explosion suppressant mixed liquor is prepared into；Heat absorption modification liquid is added dropwise to above-mentioned Explosion suppressant mixed liquor by 1:8 in mass ratio
In, water-bath is stirred 17min at 47 DEG C, then at 250W after ultrasonic disperse processing 12min, subsequent insulation reaction 1h, quiet
It sets after being cooled to room temperature, filters and collect filter cake, dry 7h, can be prepared into a kind of heat absorption modified phosphate potassium dihydrogen at 57 DEG C
Explosion suppressant.
Example 3
First according to parts by weight, 30 parts of sodium alginates, 70 parts of deionized waters, 35 parts of atoleines and 10 parts are weighed respectively
Alkyl phenol polyoxyethylene ether is placed in conical flask, and equal qualitative response 10min, is prepared into homogeneous mixed liquor at 10000r/min；
Again according to parts by weight, 10 parts of chitosans, 50 parts of glacial acetic acid and 10 parts of calcium chloride are weighed respectively to be placed in a beaker, be stirred system
Standby to be modified solidification liquid, then 1:5 in mass ratio, the homogeneous mixed liquor of above-mentioned preparation is added dropwise in modified solidification liquid, control
Time for adding is 15min, after being added dropwise to complete, is stirred 15min at 60 DEG C, is prepared into heat absorption modification liquid, spare；By phosphorus
Acid dihydride potassium is placed at 80 DEG C dry 8h and is prepared into dry potassium dihydrogen phosphate, then according to parts by weight, weighs 40 parts respectively and does
Dry potassium dihydrogen phosphate, 10 parts of calcium carbonate, 3 parts of white carbon blacks, 3 parts of talcum powder and 2 parts of mica sheets are placed in three-necked flask, at 60 DEG C
Heating water bath 30min is prepared into Explosion suppressant mixed liquor；Heat absorption modification liquid is added dropwise to above-mentioned Explosion suppressant and mixed by 1:8 in mass ratio
In liquid, water-bath is stirred 15min at 60 DEG C, then at 300W after ultrasonic disperse processing 15min, subsequent insulation reaction 2h,
After standing is cooled to room temperature, filter cake is filtered and collects, dry 8h, can be prepared into a kind of heat absorption modified phosphate dihydro at 60 DEG C
Potassium Explosion suppressant.
Claims (1)
1. a kind of preparation method for the modified phosphate potassium dihydrogen Explosion suppressant that absorbs heat, it is characterised in that specific preparation step are as follows:
(1) according to parts by weight, 25~30 parts of sodium alginates, 65~70 parts of deionized waters, 30~35 parts of liquid stones are weighed respectively
Wax and 5~10 parts of alkyl phenol polyoxyethylene ether are placed in conical flask, at 8000~10000r/min equal qualitative response 5~
10min is prepared into homogeneous mixed liquor；
(2) again according to parts by weight, 5~10 parts of chitosans, 45~50 parts of glacial acetic acid and 5~10 parts of calcium chloride are weighed respectively to be placed in
It in beaker, is stirred and is prepared into modified solidification liquid, then 1:5 in mass ratio, the homogeneous mixed liquor of above-mentioned preparation is added dropwise to
In modified solidification liquid, control time for adding is 10~15min, after being added dropwise to complete, it is stirred 10 at 45~60 DEG C~
15min is prepared into heat absorption modification liquid, spare；
(3) potassium dihydrogen phosphate is placed at 65~80 DEG C dry 6~8h and is prepared into dry potassium dihydrogen phosphate, then in parts by weight
Meter weighs 35~40 parts of dry potassium dihydrogen phosphates, 5~10 parts of calcium carbonate, 2~3 parts of white carbon blacks, 2~3 parts of talcum powder and 1 respectively
~2 parts of mica sheets are placed in conical flask, and 25~30min of heating water bath at 45~60 DEG C is prepared into Explosion suppressant mixed liquor；
(4) heat absorption modification liquid prepared by step (2) is added dropwise in above-mentioned Explosion suppressant mixed liquor, 45~60 by 1:8 in mass ratio
Water-bath is stirred 10~15min at DEG C, then ultrasonic disperse handles 10~15min, subsequent insulation reaction 1 at 200~300W
After~2h, after standing is cooled to room temperature, filter cake is filtered and collects, dry 6~8h, can be prepared into a kind of suction at 55~60 DEG C
Heat modification potassium dihydrogen phosphate Explosion suppressant.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610469745.1A CN106089288B (en) | 2016-06-26 | 2016-06-26 | A kind of preparation method for the modified phosphate potassium dihydrogen Explosion suppressant that absorbs heat |
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| CN109973136B (en) * | 2019-03-26 | 2020-01-14 | 山东科技大学 | Composite explosion suppressant for suppressing low-concentration coal bed gas explosion and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101108778A (en) * | 2006-07-17 | 2008-01-23 | 南京理工大学 | Passivating modified safe type agricultural ammonium nitrate and method for preparation thereof |
| CN103007478A (en) * | 2012-12-31 | 2013-04-03 | 西安科技大学 | Fire extinguishing agent and preparation method thereof |
| CN204476459U (en) * | 2014-12-11 | 2015-07-15 | 安徽理工大学 | The agent of a kind of gas-solid mixing extinguish and anti-explosion |
-
2016
- 2016-06-26 CN CN201610469745.1A patent/CN106089288B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101108778A (en) * | 2006-07-17 | 2008-01-23 | 南京理工大学 | Passivating modified safe type agricultural ammonium nitrate and method for preparation thereof |
| CN103007478A (en) * | 2012-12-31 | 2013-04-03 | 西安科技大学 | Fire extinguishing agent and preparation method thereof |
| CN204476459U (en) * | 2014-12-11 | 2015-07-15 | 安徽理工大学 | The agent of a kind of gas-solid mixing extinguish and anti-explosion |
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