CN106085359A - A kind of coal dust depressor and the method for suppression Coal Transport airborne dust - Google Patents
A kind of coal dust depressor and the method for suppression Coal Transport airborne dust Download PDFInfo
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- CN106085359A CN106085359A CN201610375808.7A CN201610375808A CN106085359A CN 106085359 A CN106085359 A CN 106085359A CN 201610375808 A CN201610375808 A CN 201610375808A CN 106085359 A CN106085359 A CN 106085359A
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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Abstract
The invention discloses a kind of coal dust depressor, this coal dust depressor contains natural macromolecular material, water-borne acrylic resin, firming agent and wetting agent；Relative to 1 weight portion natural macromolecular material, the content of water-borne acrylic resin is 0.4 1.2 weight portions, and the content of firming agent is 0.01 0.05 weight portions, and the content of wetting agent is 0.2 0.6 weight portions.When the coal dust depressor of the present invention is sprayed onto coal surface, the water-soluble components such as natural macromolecular material therein can play the effect adhering to coal particles, curable water-borne acrylic resin component can be formed in coal surface particles has certain thickness cured layer, thus improves the dust-proof effect of coal dust depressor.The coal dust depressor of the present invention has raw material components wide material sources, preparation and the easy to use and advantage of low cost simultaneously.
Description
Technical field
The present invention relates to environmental technology field, in particular it relates to a kind of coal dust depressor and suppression Coal Transport airborne dust
Method.
Background technology
Showing according to national statistics data, along with development and the progress of science and technology of national economy, China's raw coal output exists
Within 1998, it is 12.50 hundred million tons, through " gold 10 years " sustainable growth of coal, reaches record-breaking to raw coal output in 2014
38.7 hundred million tons, close to the 50% of world's output of coal then, become coal producer maximum in the world and country of consumption.Particularly experience coal
Between the gold decade in charcoal market, coal demand is substantially improved, with the mining listed corporations Shenhua god east coal that the whole nation is maximum
As a example by group, the coal volume of production and marketing of 2013 2.1 hundred million tons, during compared with 2003, volume of production and marketing 20,000,000 tons increases nearly more than 10 times.As
This many coal, through from underground mining out, has sub-fraction to convert on the spot, or sends through highway, water-borne transport channel, and exhausted
The railway that major part all have selected by economical and efficient transports.
In order to meet market transport power demand, promoting freight-transport capacity, shipping is arranged by railway head office the most in China
Car improves the speed of service.By the coal of railway transportation after each website entrucking, in train is run at high speed because of self speed, from
The reasons such as right wind-force, cause the tiny coal particle at wagon top to come off, unrestrained Along Railway；Especially train passes through at a high speed
Because the change of instantaneous pressure difference during Tunnel body, in tunnel, to trickle down situation even more serious for coal grain.The coal that Tunnel body is unrestrained
There is the security risk that dirt is quick-fried in grain or coal dust, threatens traffic safety after gathering in a large number.Coal, at train in transit unrestrained, is led
Cause transport loss increase, environmental improvement difficulty strengthens, tunnel driving security risk raises.
This difficult problem, the most enterprises are trickled down for solving the little granule in coal charge top layer present in railway transportation coal process
Industry release various models, of a great variety, form different coal dust depressor.But existing dust suppressant is to coal long-distance transportation
Time anti-dust effect not ideal enough, there is also simultaneously raw material sources not extensively, shortcoming that production cost is high.
Summary of the invention
It is an object of the invention to provide a kind of coal dust depressor, this dust suppressant can solve in prior art dust suppressant to coal
Anti-dust effect during charcoal long-distance transportation is undesirable, and the technical problem that raw material sources are extensive, production cost is high.
To achieve these goals, the present invention provides a kind of coal dust depressor, and this coal dust depressor contains natural polymer
Material, water-borne acrylic resin, firming agent and wetting agent；Relative to 1 weight portion natural macromolecular material, water-borne acrylic resin
Content be 0.4-1.2 weight portion, the content of firming agent is 0.01-0.05 weight portion, and the content of wetting agent is 0.2-0.6 weight
Part.
The present invention also provides for a kind of method suppressing Coal Transport airborne dust, and the method includes: spray in coal deposition surface
Above-mentioned coal dust depressor, wherein, relative to the deposition surface of every square metre of coal, the fountain height of described coal dust depressor is 1.3-
3kg。
By technique scheme, the present invention uses natural macromolecular material and water-borne acrylic resin as coal dust suppression
The main component of agent, when coal dust depressor is sprayed onto coal surface, the water-soluble component such as natural macromolecular material therein can
To play the effect adhering to coal particles, curable water-borne acrylic resin component can form tool in coal surface particles
There is certain thickness cured layer, thus improve the dust-proof effect of coal dust depressor.The coal dust depressor of the present invention has former simultaneously
Expect that Component Source is extensive, prepare and the easy to use and advantage of low cost.
Other features and advantages of the present invention will be described in detail in detailed description of the invention part subsequently.
Detailed description of the invention
Hereinafter the detailed description of the invention of the present invention is described in detail.It should be appreciated that described herein specifically
Embodiment is merely to illustrate and explains the present invention, is not limited to the present invention.
The present invention provides a kind of coal dust depressor, and this coal dust depressor contains natural macromolecular material, water soluble acrylic acid tree
Fat, firming agent and wetting agent；Relative to 1 weight portion natural macromolecular material, the content of water-borne acrylic resin is 0.4-1.2 weight
Amount part, the content of firming agent is 0.01-0.05 weight portion, and the content of wetting agent is 0.2-0.6 weight portion.By the coal of the present invention
When dust suppressant is sprayed onto coal surface, the water-soluble component such as natural macromolecular material therein can play and adhere to coal particles
Effect, curable water-borne acrylic resin component can be formed in coal surface particles has certain thickness cured layer,
Thus improve the dust-proof effect of coal dust depressor.The coal dust depressor of the present invention has raw material components wide material sources, preparation simultaneously
With the easy to use and advantage of low cost.
According to the present invention, the kind of natural macromolecular material can in very large range change, under preferable case, and above-mentioned sky
So macromolecular material can be one or more in starch, cellulose and macromolecule glue；Specifically, starch is preferably choosing
One or more in wheaten starch, potato starch, sweet potato starch and corn starch, cellulose is preferably selected from poly-Fructus Vitis viniferae
One or more in sugar, pectin, oligofructose, oligomeric isomaltose, oligomeric lactose, oligomeric xylose and soybean oligo saccharide are high
Molecular glue is preferably selected from arabic gum, tragacanth, locust bean gum, rubber made from soybean cake, osseocolla, gelatin, casein, guanidine glue and xanthan gum
One or more.The natural macromolecular material of mentioned kind can form gel, the coal dust suppression prepared in water
Agent can more effectively adhere to coal particles, improves anti-dust effect.
As currently preferred a kind of embodiment, above-mentioned natural macromolecular material can be starch and macromolecule glue
Mixture；Wherein, the mass ratio of starch and macromolecule glue is preferably 1:(1-3).The mixture using starch and macromolecule glue can
To improve the ability of coal dust depressor adhesion coal particles, and at above-mentioned preferred starch and the mass ratio of macromolecule glue
Under, the anti-dust effect of coal dust depressor is more preferable.The starch and the macromolecule glue that meet above-mentioned requirements can obtain by being purchased mode,
Such as, starch can be the wheaten starch purchased from Zhengzhou dragon biochemistry chemical product company limited, sweet potato starch etc.；Macromolecule glue is permissible
For the LBL arabic gum purchased from Dongli District, Tianjin Li Chang Chemical Co., Ltd., purchased from Fucheng County Bang Jie adhesive company limited
Osseocolla, gelatin etc..
According to the present invention, the implication of water-borne acrylic resin is well known to those skilled in the art, and can be acrylic acid tree
Fat is scattered in emulsion, aqueous dispersion or the aqueous solution formed in aqueous phase, wherein aqueous acrylamide with microgranule, drop or colloidal form
The solid content of acid resin can in very large range change, and the present invention does not do special requirement, under preferable case, water soluble acrylic acid
The solid content of resin can be 40-70 weight %.The water-borne acrylic resin meeting above-mentioned condition is prone to mix with other components,
The coal dust depressor prepared can form thickness and the suitable cured layer of intensity on coal surface.
According to the present invention, can be containing the acrylic resin as primary curing component, propylene in water-borne acrylic resin
The not particularly requirement of the kind of acid resin, can stably be scattered in water-borne acrylic resin system as long as meeting,
Pure-acrylic emulsion, styrene-acrylic emulsion, acrylate and vinyl acetate emulsion, silicone acrylic emulsion and the fluorine acrylic emulsion such as can being well known to those skilled in the art
In one or more；Wherein, pure-acrylic emulsion is that emulsifying agent etc. is former by methyl methacrylate, butyl acrylate, initiator
Expect the emulsion that aggregated reaction prepares；Styrene-acrylic emulsion (styrene-acrylate emulsion) is by styrene and acrylate
Monomer obtains through emulsion copolymerization；The water that acrylate and vinyl acetate emulsion is is major function monomer copolymerization with vinyl acetate and butyl acrylate
Property macromolecule resin；Silicone acrylic emulsion is to add the organic silicon monomer containing unsaturated bond with acrylic monomer suitably to help
Agent, the emulsion being polymerized by nucleocapsid cladding polymerization technique.
Under preferable case, water-borne acrylic resin can contain pure third resin and/or styrene-acrylic resin.It is highly preferred that water
Property acrylic resin can contain pure third resin and styrene-acrylic resin, and the mass ratio of pure third resin and styrene-acrylic resin can be 1:
(0.5-2).Under the effect of firming agent, mentioned kind and quality can be under room temperature use states than the acrylic resin of scope
Crosslink reaction, form stable cured layer on coal surface, be conducive to fixing coal surface particles, improve anti-dust effect.
The water-borne acrylic resin meeting above-mentioned requirements can be commercially available, for example, it is possible to have for containing chemical industry purchased from Guangzhou river in Henan Province
The pure-acrylic emulsion 4700 of limit company, pure-acrylic emulsion 2800, purchased from the styrene-acrylic emulsion etc. of Jining 101 Chemical Co., Ltd..
According to the present invention, the implication of firming agent is well known to those skilled in the art, and can be that acrylic resin is conventional solid
Agent, the not particularly requirement of its kind, under preferable case, firming agent can be isocyanates and/or amino resins；Wherein,
The kind that amino resin curing agents can be well known to those skilled in the art, for example, Lauxite (UF), tripolycyanamide first
One or more in urea formaldehyde (MF) and Polyamide-Polyamsne-Epichlorohydrin (PAE).The firming agent of mentioned kind can promote
Water-borne acrylic resin solidifies, and improves the anti-dust effect of coal dust depressor.The isocyanates meeting above-mentioned condition can be Germany
Bayer water-based isocyanate firming agent 3100, amino resins can be the melamine purchased from carefree Arts & Crafts Co., Ltd of Jining City
Amine-formaldehyde resins XT-303, benzo guanamine resin FB8561 etc. purchased from Shanghai weathercock chemistry Science and Technology Ltd..
According to the present invention, what wetting agent can be well known to those skilled in the art has the thing of moisturizing and/or water sorption
Matter, such as, can be organic polyhydric alcohol, specifically, organic polyhydric alcohol be preferably selected from into glycerol, butanediol, Polyethylene Glycol,
One or more in propylene glycol, hexylene glycol, xylitol, polypropylene glycol and Sorbitol.The wetting agent of mentioned kind can carry
The water holding capacity of high coal dust depressor, thus improve anti-dust effect.
According to the present invention, for the ease of using in coal surface sprinkling, coal dust depressor can also contain water, Qi Zhongshui
Content can in very large range change, under preferable case, relative to the natural macromolecular material of 1 weight portion, the content of water
It can be 30-150 weight portion.
The present invention also provides for a kind of method suppressing Coal Transport airborne dust, and the method includes: spray in coal deposition surface
Above-mentioned coal dust depressor, wherein, relative to the deposition surface of every square metre of coal, the fountain height of described coal dust depressor is 1.3-
3kg.At the coal dust depressor of the above-mentioned content range of coal surface sprinkling, can effectively adhere to and wrap up coal surface granule,
Prevent coal particles airborne dust, the mass loss that when advantageously reducing coal long-distance transportation, airborne dust causes and the pollution to environment.
In the method for the suppression Coal Transport airborne dust according to the present invention, the particle diameter of coal can in very large range become
Changing, under preferable case, the coal dust depressor of the present invention has more excellent anti-dust effect to the coal that particle diameter is 0.01-20mm.
Further describe the present invention by the following examples, but the present invention is not therefore subject to any restriction.
In the following embodiment of the present invention, wheaten starch and sweet potato starch are purchased from Zhengzhou dragon biochemistry chemical product company limited, LBL Ah
Draw primary glue for being limited purchased from Fucheng County nation outstanding person's adhesive purchased from Dongli District, Tianjin Li Chang Chemical Co., Ltd., osseocolla and gelatin
Company；Pure-acrylic emulsion 4700, pure-acrylic emulsion 2800 are purchased from Guangzhou Qi Sheng Chemical Co., Ltd., and styrene-acrylic emulsion is purchased from Jining
101 Chemical Co., Ltd.s；Isocyanates is the water-based isocyanate firming agent 3100 purchased from Bayer Bitterfeld GmbH, and amino resins is for purchasing
The melamine resin XT-303 of carefree Arts & Crafts Co., Ltd from Jining City；In the case of not making special instruction,
Remaining raw material and reagent are commercially available prod.
Embodiment 1
The present embodiment is for coal dust depressor that the present invention is described and preparation method thereof.
By 1 weight portion wheaten starch, (pure-acrylic emulsion 4700, solid content is 70 weights to 0.4 weight portion water-borne acrylic resin
Amount %), 0.01 weight portion aqueous isocyanate curing agent 3100 and 0.2 weight portion glycerol and 30 weight parts water mix homogeneously,
Obtain the coal dust depressor of the present embodiment.
Embodiment 2
The present embodiment is for coal dust depressor that the present invention is described and preparation method thereof.
By 1 weight portion sweet potato starch, (pure-acrylic emulsion 2800, solid content is 40 weights to 1.2 weight portion water-borne acrylic resins
Amount %), 0.05 weight portion aqueous isocyanate curing agent 3100 and 0.6 weight portion Polyethylene Glycol and the mixing of 150 weight parts waters are all
Even, obtain the coal dust depressor of the present embodiment.
Embodiment 3
The present embodiment is for coal dust depressor that the present invention is described and preparation method thereof.
By 1 weight portion LBL arabic gum, (styrene-acrylic emulsion, solid content is 45 weights to 1 weight portion water-borne acrylic resin
Amount %), 0.02 weight portion amino resins and 0.5 parts by weight of propylene glycol and 80 weight parts water mix homogeneously, obtain the present embodiment
Coal dust depressor.
Embodiment 4
The present embodiment is for coal dust depressor that the present invention is described and preparation method thereof.
By 0.8 weight portion LBL arabic gum, 0.2 weight portion osseocolla, 0.65 weight portion water-borne acrylic resin (phenylpropyl alcohol breast
Liquid, solid content is 50 weight %), 0.02 weight portion amino resins, 0.01 weight portion aqueous isocyanate curing agent 3100 and 0.4
Weight portion butanediol and 60 weight parts water mix homogeneously, obtain the coal dust depressor of the present embodiment.
Embodiment 5
The present embodiment is for coal dust depressor that the present invention is described and preparation method thereof.
By 0.5 weight portion LBL arabic gum, 0.5 weight portion wheaten starch, 0.8 weight portion water-borne acrylic resin is (wherein
Pure-acrylic emulsion 2800 and styrene-acrylic emulsion weight ratio 1:1, solid content 50%), 0.03 weight portion aqueous isocyanate curing agent 3100,
0.01 weight portion amino resins and 0.4 weight portion butanediol and 60 weight parts water mix homogeneously, the coal obtaining the present embodiment presses down
Dirt agent.
Embodiment 6
The present embodiment is for coal dust depressor that the present invention is described and preparation method thereof.
Raw material same as in Example 5 and method is used to prepare coal dust depressor, except that, wheaten starch is replaced
For etc. the LBL arabic gum of weight.
Embodiment 7
The present embodiment is for coal dust depressor that the present invention is described and preparation method thereof.
Raw material same as in Example 5 and method is used to prepare coal dust depressor, except that, styrene-acrylic emulsion is replaced
For etc. the pure-acrylic emulsion 2800 of weight.
Embodiment 8
The present embodiment is for coal dust depressor that the present invention is described and preparation method thereof.
Raw material same as in Example 5 and method is used to prepare coal dust depressor, except that, in coal dust depressor not
Containing water.
Comparative example 1
The present embodiment is for illustrating coal dust depressor different from the present invention and preparation method thereof.
Raw material same as in Example 5 and method is used to prepare coal dust depressor, except that, by water soluble acrylic acid tree
The water of the weight such as fat replaces with.
Comparative example 2
The present embodiment is for illustrating coal dust depressor different from the present invention and preparation method thereof.
Raw material same as in Example 5 and method is used to prepare coal dust depressor, except that, by water soluble acrylic acid tree
The epoxy resin E-44 (purchased from Jining Hua Kai resin company limited) of the weight such as fat replaces with.
Comparative example 3
Taking 1.5kg sodium carboxymethyl cellulose, add in 20kg water swelling about 2 hours, at 50 DEG C, stirring and dissolving 20 minutes is standby
With.30kg calcium chloride dihydrate is under agitation dissolved in 30kg water, be subsequently adding 15kg glycerol, 2.5Kg phenylpropyl alcohol triazole,
1kg dodecyl sodium sulfate, stirring and dissolving is uniform, and vacuum filters.
By above two solution stirring mix homogeneously, obtain the coal dust depressor of this comparative example.
Testing example
The cleaned coal (place of production is Ordos of Inner Mongolia) that particle diameter is 0.01-20mm is respectively charged into 11 identical trains
Compartment (long 13 meters, wide 2.9 meters), the stacked area of cleaned coal heap is 37.7 square metres.By embodiment 1-8 and the coal of comparative example 1-3
Charcoal dust suppressant is the most uniformly sprayed at the deposition surface of the cleaned coal heap of 11 railway cars, and fountain height is 2kg/ square metre.
With the average travelling speed of 80km/h, after the transportation range of 1050km, measure transport loss, result such as following table
Shown in 1:
Table 1
| Coal dust depressor | Averagely transport loss (weight %) |
| Embodiment 1 | 0.21 |
| Embodiment 2 | 0.22 |
| Embodiment 3 | 0.19 |
| Embodiment 4 | 0.23 |
| Embodiment 5 | 0.17 |
| Embodiment 6 | 0.28 |
| Embodiment 7 | 0.34 |
| Embodiment 8 | 0.52 |
| Comparative example 1 | 2.3 |
| Comparative example 2 | 3.4 |
| Comparative example 3 | 3.9 |
According to table 1 data, knowable to the embodiment 5 Data Comparison with comparative example 3, relative to the coal containing other components
Dust suppressant, the coal dust depressor of the present invention can suppress the transport airborne dust of the cleaned coal of 0.01-20mm particle diameter significantly.From embodiment
5 with the Data Comparison of comparative example 1-2 it can be seen that the water-borne acrylic resin contained in the coal dust depressor of the present invention can be
Coal deposition surface forms cured layer, thus is effectively improved the dust suppression ability of coal dust depressor.
Further, from the Data Comparison of embodiment 5 and embodiment 6 it can be seen that at currently preferred natural polymer material
Material is starch and the mixture of macromolecule glue, and the mass ratio of starch and macromolecule glue is 1:(1-3) in the case of, the present invention's
Coal dust depressor can improve the effect of dust suppression further；From the Data Comparison of embodiment 5 and embodiment 7 it can be seen that at this
Invent in preferred water-borne acrylic resin containing pure third resin and styrene-acrylic resin, and pure third resin and the mass ratio of styrene-acrylic resin
For 1:(0.5-2) in the case of, the coal dust depressor of the present invention can improve the effect of dust suppression further；From embodiment 5 with real
Execute the Data Comparison of example 8 it can be seen that at currently preferred coal dust depressor possibly together with water, and relative to the sky of 1 weight portion
So macromolecular material, in the case of the content of water is 30-150 weight portion, the coal dust depressor suppression Coal Transport of the present invention is raised
The ability of dirt is higher.
The preferred embodiment of the present invention described in detail above, but, the present invention is not limited in above-mentioned embodiment
Detail, in the technology concept of the present invention, technical scheme can be carried out multiple simple variant, this
A little simple variant belong to protection scope of the present invention.
It is further to note that each the concrete technical characteristic described in above-mentioned detailed description of the invention, at not lance
In the case of shield, can be combined by any suitable means.In order to avoid unnecessary repetition, the present invention to various can
The compound mode of energy illustrates the most separately.
Additionally, combination in any can also be carried out between the various different embodiment of the present invention, as long as it is without prejudice to this
The thought of invention, it should be considered as content disclosed in this invention equally.
Claims (12)
1. a coal dust depressor, it is characterised in that this coal dust depressor contains natural macromolecular material, water soluble acrylic acid tree
Fat, firming agent and wetting agent；Relative to 1 weight portion natural macromolecular material, the content of water-borne acrylic resin is 0.4-1.2 weight
Amount part, the content of firming agent is 0.01-0.05 weight portion, and the content of wetting agent is 0.2-0.6 weight portion.
Dust suppressant the most according to claim 1, it is characterised in that described natural macromolecular material is selected from starch, fiber
One or more in element and macromolecule glue.
Dust suppressant the most according to claim 2, it is characterised in that described starch is selected from wheaten starch, potato starch, red
One or more in sweet potato starch and corn starch, described cellulose is selected from polydextrose, pectin, oligofructose, oligomeric different
One or more in maltose, oligomeric lactose, oligomeric xylose and soybean oligo saccharide, described macromolecule glue is for selected from Arab
One or more in glue, tragacanth, locust bean gum, rubber made from soybean cake, osseocolla, gelatin, casein, guanidine glue and xanthan gum.
Dust suppressant the most according to claim 3, it is characterised in that described natural macromolecular material is starch and macromolecule glue
Mixture, and the mass ratio of starch and macromolecule glue is 1:(1-3).
Coal dust depressor the most according to claim 1, it is characterised in that the solid content of described water-borne acrylic resin is
40-70%.
Coal dust depressor the most according to claim 1 or 5, it is characterised in that containing pure in described water-borne acrylic resin
One or more in acrylic emulsion, styrene-acrylic emulsion, acrylate and vinyl acetate emulsion, silicone acrylic emulsion and fluorine acrylic emulsion.
Coal dust depressor the most according to claim 6, it is characterised in that containing pure third tree in described water-borne acrylic resin
Fat and styrene-acrylic resin, and the mass ratio of pure third resin and styrene-acrylic resin is 1:(0.5-2).
Coal dust depressor the most according to claim 1, it is characterised in that described firming agent is isocyanates and/or amino
Resin.
Coal dust depressor the most according to claim 1, it is characterised in that described wetting agent is organic polyhydric alcohol, described in have
Machine polyhydric alcohol is for being selected from as glycerol, butanediol, Polyethylene Glycol, propylene glycol, hexylene glycol, xylitol, polypropylene glycol and sorbose
One or more in alcohol.
Coal dust depressor the most according to claim 1, it is characterised in that described coal dust depressor is possibly together with water, and relatively
In the natural macromolecular material of 1 weight portion, the content of water is 30-150 weight portion.
11. 1 kinds of methods suppressing Coal Transport airborne dust, it is characterised in that the method includes: spray power in coal deposition surface
Profit requires the coal dust depressor described in 10, wherein, relative to the deposition surface of every square metre of coal, the spray of described coal dust depressor
The amount of spilling is 1.3-3kg.
12. methods according to claim 11, it is characterised in that the particle diameter of described coal is 0.01-20mm.
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| CN109943288A (en) * | 2019-03-08 | 2019-06-28 | 青岛睿鸿鑫环保科技有限公司 | A kind of ecological ideas dust suppressant and the preparation method and application thereof |
| CN110028935A (en) * | 2019-05-05 | 2019-07-19 | 淮南中科盛联环保科技股份有限公司 | It is a kind of for the dust suppressant of non-hard surface and its preparation, application method |
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