CN108570308A - A kind of preparation method of water proof type coal dust depressor - Google Patents
A kind of preparation method of water proof type coal dust depressor Download PDFInfo
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Abstract
The invention discloses a kind of preparation methods of water proof type coal dust depressor, belong to environmental protection treatment agent technical field.By oxidized starch and water in mass ratio 1：5~1：8 mixing, stirring gelatinization, obtain gelatinized starch mixture, by gelatinized starch mixture and acrylic acid in mass ratio 8：1~8：2 mixing, and the initiator of 0.1~0.2 times of the polyvinyl alcohol and acrylic acid quality of 0.5~0.6 times of acrylic acid quality is added, after being stirred, obtain dust suppressant blank；By dust suppressant blank and sodium cellulose glycolate in mass ratio 10：1~10：2 mixing, and the additive of 0.2~0.4 times of the surfactant and dust suppressant blank quality of 0.1~0.3 times of dust suppressant blank quality is added, after being stirred, pH to 4.2~4.5 is adjusted, water proof type coal dust depressor is obtained.Water proof type coal dust depressor prepared by the present invention has excellent water resistance and anti-dust effect.
Description
Technical field
The invention discloses a kind of preparation methods of water proof type coal dust depressor, belong to environmental protection treatment agent technical field.
Background technology
Coal is as the grand strategy goods and materials that the basic energy is national economy and social development, with economic quick hair
The problem of exhibition, market sharply increase the demand of coal, thus rationally effective solution coal industry is brought seems particularly heavy
It wants.In recent years, dust pollution has become one of world's public hazards, and the coal dust that coal industry is brought is exactly one of main disaster.Coal
Each job steps such as production, handling, broken, transport, the processing of charcoal can all generate coal dust.In addition the coal place of production exists with consumption base
Geographic misalignment layout so that the highway of coal, railway transportation are inevitable, the powder along transport generated by it
Dirt generates reentrainment of dust when motor vehicle passes through, and forms a contaminated zone, prodigious dirt is caused for the ecological environment on periphery
Dye.Railway Coal transport is generally used open-top car and transports, due to top caused by the orbital facilities such as roadbed, track switch in transportational process
It winnows with a dustpan and wind pressure that when train operation generates, especially forms the strong disturbance air-flow of moment as the train moves into the tunnel, table can be made
The coal grain in face is fallen by the car body that blows off and is spread across ground, and ecological environment of the coal dust blown off not only to along causes serious dirt
Dye, and certain destruction will also result in the equipment such as railway roadbed, railway signal and contact power grid in circuit, considerably increase repair
Cost, while also resulting in the no small wasting of resources.So solving the problems, such as that Railway Coal dust pollution is very urgent.
Currently, the method that coal is scattered is prevented to be mainly the following：
1) it is capped method.Car body capping can effectively prevent being scattered for coal dust, but its cost is higher, the sequence of operations such as Er Qiekai, lid
Existing machinery makeup coal, the process of unloading coal can be produced bigger effect, it is difficult to match with existing automatic production line.2) tarpaulin
Covering method.The method on compartment mouth is bound with tarpaulin body perimeter and vertical or horizontal rope.It effectively prevents coal dust
Or other powder things fly out out of compartment with the wind, but since Along Railway high degree of automation, vehicle flowrate are big, operating speed is fast,
Need a large amount of manpowers that could complete.3) watering method.Watering is the prevention most common method of dust pollution, but dry in natural conditions
In dry, train high-speed cruising environment, it is big to inevitably result in evaporation capacity, and sprinkling is frequent, and the difficult requirement for reaching environmental quality.4)
Chemical dust suppression method.Dust suppressant is sprayed in coal surface, its easy construction, dust-proof effect is preferable, and does not appoint to coal burning
What is influenced；But the waterproof effect of current dust suppressant is mostly poor, in transportational process, will result in largely once encountering rainfall
Coal dust loses.Therefore, with railway transportation raising speed by a large scale, develop it is a kind of it is cheap, efficiently and there is certain waterproof ability
Coal dust depressor have become one of urgent problem at this stage.
Invention content
The present invention solves the technical problem of：For traditional coal dust depressor water resistance bad and anti-dust effect without
The problem of method further increases provides a kind of preparation method of water proof type coal dust depressor.
In order to solve the above-mentioned technical problem, the technical solution adopted in the present invention is：
（1）By gelatin and water in mass ratio 1：8~1：15 mixing, stand swelling, and heating stirring obtains gelatin solution；Gelatin is molten
Liquid and endopeptidase in mass ratio 30：1~50：1 mixing, is stirred to react, high temperature enzyme deactivation obtains glutin hydrolysate；
（2）By linseed oil and water in mass ratio 1：5~1：8 mixing, and the emulsifier of 0.2~0.3 times of flax oil quality is added, it stirs
After mixing mixing, flax fat liquor is obtained；
（3）By glutin hydrolysate and flax fat liquor in mass ratio 3：1~4：1 mixing, adjusts pH to 7~8, after being stirred,
PH to 4.2~4.8 is adjusted, pre- modified enzymolysis liquid is obtained；
（4）By pre- modified enzymolysis liquid and ethyl acetate in mass ratio 5：1~5：2 mixing, and be added ethyl acetate quality 0.1~
0.2 times of butyl acrylate, the acrylonitrile that 0.1~0.2 times of ethyl acetate quality, 0.10~0.12 times of ethyl acetate quality are drawn
The bentonite for sending out 0.2~0.3 times of agent and ethyl acetate quality, after being stirred, obtains modified enzymolysis liquid, by modified enzymolysis liquid vacuum
After drying, crushes, obtain additive；
（5）By oxidized starch and water in mass ratio 1：5~1：8 mixing, stirring gelatinization, obtain gelatinized starch mixture, and gelatinization is formed sediment
Powder mixture and acrylic acid in mass ratio 8：1~8：2 mixing, and the polyvinyl alcohol and third of 0.5~0.6 times of acrylic acid quality is added
The initiator that 0.1~0.2 times of olefin(e) acid quality after being stirred, obtains dust suppressant blank；
（6）By dust suppressant blank and sodium cellulose glycolate in mass ratio 10：1~10：2 mixing, and dust suppressant blank matter is added
The additive of 0.2~0.4 times of the surfactant and dust suppressant blank quality of 0.1~0.3 times of amount after being stirred, adjusts pH
To 4.2~4.5, water proof type coal dust depressor is obtained.
Step（1）The endopeptidase is any one in papain or trypsase.
Step（2）The emulsifier is emulsifier op-10, any one in emulsifier TX-100 or emulsifier os.
The initiator is potassium peroxydisulfate, any one in ammonium persulfate or sodium peroxydisulfate.
Step（4）The bentonitic grain size is 150 mesh.
Step（5）The oxidized starch is oxidised maize starch, is aoxidized any one in potato starch or oxidized tapioca
Kind.
Step（6）The surfactant is neopelex, any one in Tween-80 or Arlacel-80.
The beneficial effects of the invention are as follows：
（1）Additive is added when preparing water proof type coal dust depressor by the present invention, first, gelatin, gelatin is added in additive
After endopeptidase processing, become the smaller protein of molecule segment, active site increases, can be in the tune of pH in pre- modifying process
Under control, linseed oil part is fixed on gelatine, to which after being added in product, Asia can be discharged in use in product
Sesame oil makes linseed oil cure under air conditions, so make product water proofing property and anti-dust effect improve, secondly, addition it is bright
Glue in modifying process can graft butyl acrylate and acrylonitrile, to make the hydrophobic performance of gelatin improve, be added produce
After in product, coal surface pore can be filled during product use, the water proofing property of product is made to improve；
（2）The present invention adds bentonite when preparing water proof type coal dust depressor, on the one hand, and bentonite is lamellar structure,
After being added in product, it can be modified by the partially protein of gelatin degradation during additive agent modified, to make swelling organise,
Be conducive to starch to act on part polyethylene alcohol, to make the water proofing property of product further increase, on the other hand, bentonite be added
The quick-drying that product can be effectively improved, to improve the anti-dust effect of product.
Specific implementation mode
By gelatin and water in mass ratio 1：8~1：15 mixing stand 1~2h of swelling under conditions of being 40~50 DEG C in temperature
Afterwards, it is 70~80 DEG C in temperature, after rotating speed is stirred 30~40min under conditions of being 300~400r/min, it is molten obtains gelatin
Liquid；By gelatin solution and endopeptidase in mass ratio 30：1~50：1 mixing is 40~48 DEG C in temperature, and rotating speed is 300~400r/
After being stirred to react 30~60min under conditions of min, high temperature 10~15min of enzyme deactivation under conditions of being 80~88 DEG C in temperature is obtained bright
Glue enzymolysis liquid；By linseed oil and water in mass ratio 1：5~1：8 are mixed in beaker, and flax oil quality 0.2 is added into beaker
~0.3 times of emulsifier is 30~50 DEG C in temperature, and rotating speed is stirred 30~40min under conditions of being 500~800r/min
Afterwards, flax fat liquor is obtained；By glutin hydrolysate and flax fat liquor in mass ratio 3：1~4：1 is mixed in flask, with quality point
Number adjusts material pH to 7~8 in flask for 20~28% ammonium hydroxide, is 40~50 DEG C in temperature, rotating speed is 200~400r/min
Under conditions of be stirred 60~80min after, with mass fraction be 10~12% hydrochloric acid adjust flask in material pH to 4.2~
4.8, obtain pre- modified enzymolysis liquid；By pre- modified enzymolysis liquid and ethyl acetate in mass ratio 5：1~5：2 are mixed in conical flask, and
The butyl acrylate of 0.1~0.2 times of ethyl acetate quality, the propylene that 0.1~0.2 times of ethyl acetate quality are added to conical flask
Nitrile, the bentonite of 0.2~0.3 times of the initiator and ethyl acetate quality that 0.10~0.12 times of ethyl acetate quality are in temperature
55~65 DEG C, after rotating speed is stirred 1~2h under conditions of being 300~400r/min, modified enzymolysis liquid is obtained, by modified enzymolysis liquid
After vacuum drying, crushes, obtain additive；By oxidized starch and water in mass ratio 1：5~1：8 mixing, in temperature be 80~85 DEG C,
30~40min of stirring gelatinization, obtains gelatinized starch mixture, gelatinized starch is mixed under conditions of rotating speed is 300~400r/min
Object and acrylic acid in mass ratio 8：1~8：2 are mixed in three-necked flask, and be added into three-necked flask acrylic acid quality 0.5~
The initiator of 0.6 times of 0.1~0.2 times of polyvinyl alcohol and acrylic acid quality, in temperature be 55~75 DEG C, rotating speed be 300~
After being stirred 3~4h under conditions of 350r/min, dust suppressant blank is obtained；Dust suppressant blank and sodium cellulose glycolate are pressed into matter
Measure ratio 10：1~10：2 are mixed in blender, and the surface work of 0.1~0.3 times of dust suppressant blank quality is added into blender
Property 0.2~0.4 times of agent and dust suppressant blank quality additive, be 45~65 DEG C in temperature, rotating speed is 200~300r/min
Under the conditions of be stirred 30~60min after, with mass fraction be 10~12% hydrochloric acid adjust blender in material pH to 4.2
~4.5, obtain water proof type coal dust depressor.The endopeptidase is any one in papain or trypsase.The emulsification
Agent is emulsifier op-10, any one in emulsifier TX-100 or emulsifier os.The initiator is potassium peroxydisulfate, persulfuric acid
Any one in ammonium or sodium peroxydisulfate.The bentonitic grain size is 150 mesh.The oxidized starch is oxidised maize starch, oxygen
Change any one in potato starch or oxidized tapioca.The surfactant be neopelex, Tween-80 or
Any one in Arlacel-80.
By gelatin and water in mass ratio 1：15 mixing stand after being swollen 2h under conditions of being 50 DEG C in temperature, are in temperature
80 DEG C, after rotating speed is stirred 40min under conditions of being 400r/min, obtain gelatin solution；Gelatin solution and endopeptidase are pressed into matter
Measure ratio 50：1 mixing, in temperature be 48 DEG C, rotating speed be 400r/min under conditions of be stirred to react 60min after, in temperature be 88 DEG C
Under conditions of high temperature enzyme deactivation 15min, obtain glutin hydrolysate；By linseed oil and water in mass ratio 1：8 are mixed in beaker, and to burning
The emulsifier of 0.3 times of flax oil quality is added in cup, is 50 DEG C in temperature, rotating speed is stirred under conditions of being 800r/min
After 40min, flax fat liquor is obtained；By glutin hydrolysate and flax fat liquor in mass ratio 4：1 is mixed in flask, with quality point
Number adjusts material pH to 8 in flask for 28% ammonium hydroxide, is 50 DEG C in temperature, rotating speed is stirred under conditions of being 400r/min
After 80min, the hydrochloric acid for being 12% with mass fraction adjusts material pH to 4.8 in flask, obtains pre- modified enzymolysis liquid；By pre- modification enzyme
Solve liquid and ethyl acetate in mass ratio 5：2 are mixed in conical flask, and the propylene of 0.2 times of ethyl acetate quality is added to conical flask
Acid butyl ester, the acrylonitrile that 0.2 times of ethyl acetate quality, the initiator and ethyl acetate quality 0.3 that 0.12 times of ethyl acetate quality
Bentonite again is 65 DEG C in temperature, after rotating speed is stirred 2h under conditions of being 400r/min, obtains modified enzymolysis liquid, will change
Property enzymolysis liquid vacuum drying after, crush, obtain additive；By oxidized starch and water in mass ratio 1：8 mixing, in temperature be 85 DEG C,
Stirring gelatinization 40min, obtains gelatinized starch mixture, by gelatinized starch mixture and acrylic acid under conditions of rotating speed is 400r/min
In mass ratio 8：2 are mixed in three-necked flask, and the polyvinyl alcohol and propylene of 0.6 times of acrylic acid quality are added into three-necked flask
The initiator that 0.2 times of sour quality is 75 DEG C in temperature, after rotating speed is stirred 4h under conditions of being 350r/min, obtains dust suppressant
Blank；By dust suppressant blank and sodium cellulose glycolate in mass ratio 10：2 are mixed in blender, and are added into blender
The additive of 0.4 times of the surfactant and dust suppressant blank quality of 0.3 times of dust suppressant blank quality is 65 DEG C in temperature, turns
After speed is stirred 60min under conditions of being 300r/min, the hydrochloric acid for being 12% with mass fraction adjusts the pH of material in blender
To 4.5, water proof type coal dust depressor is obtained.The endopeptidase is papain.The emulsifier is emulsifier op-10.It is described
Initiator is potassium peroxydisulfate.The bentonitic grain size is 150 mesh.The oxidized starch is oxidised maize starch.The surface
Activating agent is neopelex.
By gelatin and water in mass ratio 1：15 mixing stand after being swollen 2h under conditions of being 50 DEG C in temperature, are in temperature
80 DEG C, after rotating speed is stirred 40min under conditions of being 400r/min, obtain gelatin solution；By linseed oil and water in mass ratio 1：8
Be mixed in beaker, and the emulsifier of 0.3 times of flax oil quality be added into beaker, in temperature be 50 DEG C, rotating speed 800r/
After being stirred 40min under conditions of min, flax fat liquor is obtained；By gelatin solution and flax fat liquor in mass ratio 4：1 mixing
In flask, with mass fraction be 28% ammonium hydroxide adjust flask in material pH to 8, in temperature be 50 DEG C, rotating speed 400r/min
Under conditions of be stirred 80min after, with mass fraction be 12% hydrochloric acid adjust flask in material pH to 4.8, obtain pre- modification enzyme
Solve liquid；By pre- modified enzymolysis liquid and ethyl acetate in mass ratio 5：2 are mixed in conical flask, and ethyl acetate is added to conical flask
The butyl acrylate that 0.2 times of quality, the acrylonitrile that 0.2 times of ethyl acetate quality, the initiator that 0.12 times of ethyl acetate quality and
The bentonite that 0.3 times of ethyl acetate quality is 65 DEG C in temperature, after rotating speed is stirred 2h under conditions of being 400r/min, obtains
Modified enzymolysis liquid after being dried in vacuo modified enzymolysis liquid, crushes, obtains additive；By oxidized starch and water in mass ratio 1：8 is mixed
It closes, is 85 DEG C in temperature, stirring gelatinization 40min, obtains gelatinized starch mixture under conditions of rotating speed is 400r/min, and gelatinization is formed sediment
Powder mixture and acrylic acid in mass ratio 8：2 are mixed in three-necked flask, and 0.6 times of acrylic acid quality is added into three-necked flask
0.2 times of polyvinyl alcohol and acrylic acid quality initiator, be 75 DEG C in temperature, rotating speed stirs mixed under conditions of being 350r/min
After closing 4h, dust suppressant blank is obtained；By dust suppressant blank and sodium cellulose glycolate in mass ratio 10：2 are mixed in blender, and
The additive of 0.4 times of the surfactant and dust suppressant blank quality of 0.3 times of dust suppressant blank quality is added into blender, in
Temperature is 65 DEG C, and after rotating speed is stirred 60min under conditions of being 300r/min, the hydrochloric acid adjusting for being 12% with mass fraction is stirred
The pH to 4.5 for mixing material in machine, obtains water proof type coal dust depressor.The endopeptidase is papain.The emulsifier is breast
Agent OP-10.The initiator is potassium peroxydisulfate.The bentonitic grain size is 150 mesh.The oxidized starch is oxidation corn
Starch.The surfactant is neopelex.
By gelatin and water in mass ratio 1：15 mixing stand after being swollen 2h under conditions of being 50 DEG C in temperature, are in temperature
80 DEG C, after rotating speed is stirred 40min under conditions of being 400r/min, obtain gelatin solution；Gelatin solution and endopeptidase are pressed into matter
Measure ratio 50：1 mixing, in temperature be 48 DEG C, rotating speed be 400r/min under conditions of be stirred to react 60min after, in temperature be 88 DEG C
Under conditions of high temperature enzyme deactivation 15min, obtain glutin hydrolysate；Glutin hydrolysate is added in flask, the ammonia for being 28% with mass fraction
Water adjusts material pH to 8 in flask, is 50 DEG C in temperature, after rotating speed is stirred 80min under conditions of being 400r/min, uses matter
It measures the hydrochloric acid that score is 12% and adjusts material pH to 4.8 in flask, obtain pre- modified enzymolysis liquid；By pre- modified enzymolysis liquid and acetic acid second
Ester in mass ratio 5：2 are mixed in conical flask, and the butyl acrylate of 0.2 times of ethyl acetate quality, acetic acid are added to conical flask
The acrylonitrile that 0.2 times of ethyl ester quality, the bentonite of 0.3 times of the initiator and ethyl acetate quality that 0.12 times of ethyl acetate quality,
It is 65 DEG C in temperature, after rotating speed is stirred 2h under conditions of being 400r/min, modified enzymolysis liquid is obtained, by modified enzymolysis liquid vacuum
After drying, crushes, obtain additive；By oxidized starch and water in mass ratio 1：8 mixing, in temperature be 85 DEG C, rotating speed 400r/
Stirring gelatinization 40min, obtains gelatinized starch mixture, by gelatinized starch mixture and acrylic acid in mass ratio 8 under conditions of min：2
It is mixed in three-necked flask, and 0.2 times of the polyvinyl alcohol and acrylic acid quality of 0.6 times of acrylic acid quality is added into three-necked flask
Initiator, in temperature be 75 DEG C, rotating speed be 350r/min under conditions of be stirred 4h after, obtain dust suppressant blank；By dust suppression
Agent blank and sodium cellulose glycolate in mass ratio 10：2 are mixed in blender, and dust suppressant blank matter is added into blender
Amount 0.3 times 0.4 times of surfactant and dust suppressant blank quality additive, in temperature be 65 DEG C, rotating speed 300r/min
Under conditions of be stirred 60min after, with mass fraction be 12% hydrochloric acid adjust blender in material pH to 4.5, obtain waterproof
Type coal dust depressor.The endopeptidase is papain.The emulsifier is emulsifier op-10.The initiator is over cure
Sour potassium.The bentonitic grain size is 150 mesh.The oxidized starch is oxidised maize starch.The surfactant is 12
Sodium alkyl benzene sulfonate.
By gelatin and water in mass ratio 1：15 mixing stand after being swollen 2h under conditions of being 50 DEG C in temperature, are in temperature
80 DEG C, after rotating speed is stirred 40min under conditions of being 400r/min, obtain gelatin solution；Gelatin solution and endopeptidase are pressed into matter
Measure ratio 50：1 mixing, in temperature be 48 DEG C, rotating speed be 400r/min under conditions of be stirred to react 60min after, in temperature be 88 DEG C
Under conditions of high temperature enzyme deactivation 15min, obtain glutin hydrolysate；By linseed oil and water in mass ratio 1：8 are mixed in beaker, and to burning
The emulsifier of 0.3 times of flax oil quality is added in cup, is 50 DEG C in temperature, rotating speed is stirred under conditions of being 800r/min
After 40min, flax fat liquor is obtained；By glutin hydrolysate and flax fat liquor in mass ratio 4：1 is mixed in flask, with quality point
Number adjusts material pH to 8 in flask for 28% ammonium hydroxide, is 50 DEG C in temperature, rotating speed is stirred under conditions of being 400r/min
After 80min, the hydrochloric acid for being 12% with mass fraction adjusts material pH to 4.8 in flask, obtains pre- modified enzymolysis liquid；By pre- modification enzyme
Solve liquid and ethyl acetate in mass ratio 5：2 are mixed in conical flask, and the propylene of 0.2 times of ethyl acetate quality is added to conical flask
Acid butyl ester, the acrylonitrile that 0.2 times of ethyl acetate quality are 65 DEG C in temperature, and rotating speed is stirred under conditions of being 400r/min
After 2h, modified enzymolysis liquid is obtained, after modified enzymolysis liquid is dried in vacuo, crushes, obtains additive；In mass ratio by oxidized starch and water
1：8 mixing are 85 DEG C in temperature, and stirring gelatinization 40min, obtains gelatinized starch mixture under conditions of rotating speed is 400r/min, will
Gelatinized starch mixture and acrylic acid in mass ratio 8：2 are mixed in three-necked flask, and acrylic acid matter is added into three-necked flask
The initiator of 0.2 times of the polyvinyl alcohol and acrylic acid quality of 0.6 times of amount is 75 DEG C in temperature, and rotating speed is the condition of 350r/min
Under be stirred 4h after, obtain dust suppressant blank；By dust suppressant blank and sodium cellulose glycolate in mass ratio 10：2 are mixed in and stir
It mixes in machine, and 0.4 times of the surfactant and dust suppressant blank quality of 0.3 times of dust suppressant blank quality is added into blender
Additive, in temperature be 65 DEG C, rotating speed be 300r/min under conditions of be stirred 60min after, with mass fraction be 12% salt
Acid adjusts the pH to 4.5 of material in blender, obtains water proof type coal dust depressor.The endopeptidase is papain.The breast
Agent is emulsifier op-10.The initiator is potassium peroxydisulfate.The oxidized starch is oxidised maize starch.It lives on the surface
Property agent be neopelex.
Comparative example：The coal dust depressor of Shandong Environmental Protection Technology Co., Ltd production.
1 to 4 gained dust suppressant of example and comparative example product are subjected to performance detection, specific detection method is as follows：
Water resistance：By coal disk sample of the preparation after dry, put after weighing at 40cm under a tap, flow is in 30 ° with coal disk, is made
Flow is taken out after covering coal disk sample surface 2min with the flow velocity of 36L/h, dries again, weighs quality twice before and after sand table sample,
Water erosion rate R is calculated to be shown below.
R=（m0-m1）m0×100%
In formula：R is sandy soil by water enchroachment (invasion) percentage, %；m0For original coal disk sample amount, g；m1For remaining coal disk sample, g after erosion.
Anti-dust effect：The above-mentioned dust suppressant sample of equivalent is equably applied on numbered identical corrugated board, is made watt
Corrugated paper board is bonded two-by-two, and weighs at this time the six pieces weight W for being bonded corrugated board respectively immediately1, then corrugated board set
It spontaneously dries at room temperature, and weighs six pieces of corrugated board weight W after n hours respectively2.Calculate the dehydration speed of sample at this time
Rate, rate-of-loss of coolant more large sample quick-drying are better.
Rate-of-loss of coolant=（W1-W2）/W1×100%
The more all right bright anti-dust effect of quick-drying is better.
Specific testing result is as shown in table 1：
Table 1：Performance detection table
| Detection content | Example 1 | Example 2 | Example 3 | Example 4 | Comparative example |
| Water erosion rate/% | 2.0 | 3.4 | 3.8 | 3.5 | 5.3 |
| Rate-of-loss of coolant/% | 15.29 | 13.59 | 11.87 | 13.97 | 7.84 |
By 1 testing result of table it is found that present invention gained water proof type coal dust depressor has excellent water resistance and anti-dust effect.
Claims (7)
1. a kind of preparation method of water proof type coal dust depressor, which is characterized in that specifically preparation process is：
（1）By gelatin and water in mass ratio 1：8~1：15 mixing, stand swelling, and heating stirring obtains gelatin solution；Gelatin is molten
Liquid and endopeptidase in mass ratio 30：1~50：1 mixing, is stirred to react, high temperature enzyme deactivation obtains glutin hydrolysate；
（2）By linseed oil and water in mass ratio 1：5~1：8 mixing, and the emulsifier of 0.2~0.3 times of flax oil quality is added, it stirs
After mixing mixing, flax fat liquor is obtained；
（3）By glutin hydrolysate and flax fat liquor in mass ratio 3：1~4：1 mixing, adjusts pH to 7~8, after being stirred,
PH to 4.2~4.8 is adjusted, pre- modified enzymolysis liquid is obtained；
（4）By pre- modified enzymolysis liquid and ethyl acetate in mass ratio 5：1~5：2 mixing, and be added ethyl acetate quality 0.1~
0.2 times of butyl acrylate, the acrylonitrile that 0.1~0.2 times of ethyl acetate quality, 0.10~0.12 times of ethyl acetate quality are drawn
The bentonite for sending out 0.2~0.3 times of agent and ethyl acetate quality, after being stirred, obtains modified enzymolysis liquid, by modified enzymolysis liquid vacuum
After drying, crushes, obtain additive；
（5）By oxidized starch and water in mass ratio 1：5~1：8 mixing, stirring gelatinization, obtain gelatinized starch mixture, and gelatinization is formed sediment
Powder mixture and acrylic acid in mass ratio 8：1~8：2 mixing, and the polyvinyl alcohol and third of 0.5~0.6 times of acrylic acid quality is added
The initiator that 0.1~0.2 times of olefin(e) acid quality after being stirred, obtains dust suppressant blank；
（6）By dust suppressant blank and sodium cellulose glycolate in mass ratio 10：1~10：2 mixing, and dust suppressant blank matter is added
The additive of 0.2~0.4 times of the surfactant and dust suppressant blank quality of 0.1~0.3 times of amount after being stirred, adjusts pH
To 4.2~4.5, water proof type coal dust depressor is obtained.
2. a kind of preparation method of water proof type coal dust depressor according to claim 1, it is characterised in that：Step（1）Institute
It is any one in papain or trypsase to state endopeptidase.
3. a kind of preparation method of water proof type coal dust depressor according to claim 1, it is characterised in that：Step（2）Institute
It is emulsifier op-10 to state emulsifier, any one in emulsifier TX-100 or emulsifier os.
4. a kind of preparation method of water proof type coal dust depressor according to claim 1, it is characterised in that：The initiator
For potassium peroxydisulfate, any one in ammonium persulfate or sodium peroxydisulfate.
5. a kind of preparation method of water proof type coal dust depressor according to claim 1, it is characterised in that：Step（4）Institute
It is 150 mesh to state bentonitic grain size.
6. a kind of preparation method of water proof type coal dust depressor according to claim 1, it is characterised in that：Step（5）Institute
It is oxidised maize starch to state oxidized starch, aoxidizes any one in potato starch or oxidized tapioca.
7. a kind of preparation method of water proof type coal dust depressor according to claim 1, it is characterised in that：Step（6）Institute
It is neopelex to state surfactant, any one in Tween-80 or Arlacel-80.
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| CN (1) | CN108570308A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109320663A (en) * | 2018-10-31 | 2019-02-12 | 北京工业大学 | A kind of dust suppressant and preparation method thereof of road construction dust suppression |
| CN114133150A (en) * | 2021-12-31 | 2022-03-04 | 广州富思德化工科技有限公司 | High-flash-point environment-friendly emulsified oil and preparation method thereof |
-
2018
- 2018-06-11 CN CN201810593359.2A patent/CN108570308A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109320663A (en) * | 2018-10-31 | 2019-02-12 | 北京工业大学 | A kind of dust suppressant and preparation method thereof of road construction dust suppression |
| CN109320663B (en) * | 2018-10-31 | 2021-03-16 | 北京工业大学 | Dust suppressant for road construction and preparation method thereof |
| CN114133150A (en) * | 2021-12-31 | 2022-03-04 | 广州富思德化工科技有限公司 | High-flash-point environment-friendly emulsified oil and preparation method thereof |
| CN114133150B (en) * | 2021-12-31 | 2023-12-08 | 广州富思德化工科技有限公司 | High-flash-point environment-friendly emulsified oil and preparation method thereof |
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