CN104893667A - Port coal unloading wharf dust suppressant and preparation method thereof - Google Patents
Port coal unloading wharf dust suppressant and preparation method thereof Download PDFInfo
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- CN104893667A CN104893667A CN201510376563.5A CN201510376563A CN104893667A CN 104893667 A CN104893667 A CN 104893667A CN 201510376563 A CN201510376563 A CN 201510376563A CN 104893667 A CN104893667 A CN 104893667A
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Abstract
The invention discloses a port coal unloading wharf dust suppressant and a preparation method thereof. The dust suppressant is prepared by adopting the following raw materials in parts by weight: 0.5 to 3 parts of konjac glucomannan powder, 0.1 to 1 part of sodium polyacrylate, 0.2 to 1.2 parts of maltodextrin, 0.01 to 0.1 parts of polyoxyethylene aliphatic alcohol ether and 100 parts of water. By adopting the port coal unloading wharf dust suppressant, the surface tension of coal powder can be remarkably reduced, and dust can be rapidly wetted and can be rapidly agglomerated and settled so as to realize the dust suppressing purpose; meanwhile, the port coal unloading wharf dust suppressant is high in moisture absorption water-retaining property, capable of effectively preventing secondary flying dust and particularly suitable for preventing and treating the dust of a port coal unloading wharf.
Description
Technical field
The present invention relates to technical field of environment pollution control, particularly relate to a kind of harbour coal unloading terminal dust inhibitor and preparation method thereof.
Background technology
China is producing coal, uses coal big country, and coal is major bulks goods and materials important in China's water-borne transport.The handling of harbour coal always face severeer pollution caused by coal dust problem.The speed accounting for fine particle sedimentation from air of coal dust total amount 15 ~ 40% is very slow, is easily inhaled into human lung, causes people to suffer from chronic tracheitis and bronchitis, eye conjunctivitis, dermatosis, also likely cause infringement and the cancer of cell chromosome.Coal dust is combined with other air pollutant, can produce the material to human health such as sulfate aerosol and nitrogen peroxide.Loss coal dust can cover the blade of plant, blocks the pore of leaf, weakens the photosynthesis of plant.Loss dust precipitation, in Residential areas, causes the infringement to the public.
In order to reduce environmental pollution, wet dedusting is widely used in operation field.But due to the surface tension of water comparatively large, be difficult to soak coal dust fast, poor effect.Moreover due to the evaporability of water, after the water content of coal reduces, can reentrainment of dust be produced in transport, storage process.
Based on this, developing one can depositing dust fast, and the harbour coal unloading terminal dust inhibitor of reentrainment of dust can be prevented again very necessary.
Summary of the invention
Based on this, be necessary to provide a kind of harbour coal unloading terminal dust inhibitor.
A kind of harbour coal unloading terminal dust inhibitor, is prepared from by the raw material of following parts by weight:
Konjaku rubber powder 0.5-3 part,
Sodium polyacrylate 0.1-1 part,
Maltodextrin 0.2-1.2 part,
Polyoxyethylene aliphatic alcohol ether 0.01-0.1 part,
100 parts, water.
Wherein in an embodiment, be prepared from by the raw material of following parts by weight:
Konjaku rubber powder 0.8-2 part,
Sodium polyacrylate 0.3-0.8 part,
Maltodextrin 0.5-1 part,
Polyoxyethylene aliphatic alcohol ether 0.03-0.08 part,
100 parts, water.
Wherein in an embodiment, konjac glucomanna content more than 70%, fineness >120 order in described konjaku rubber powder.
Wherein in an embodiment, described sodium polyacrylate molecular weight is 6,000,000-1,500 ten thousand, and preferred molecular weight is 1,000 ten thousand.
Wherein in an embodiment, the DE value of described maltodextrin is 15.3
.
The present invention also provides the preparation method of described harbour coal unloading terminal dust inhibitor, comprises the steps:
In described konjaku rubber powder, add sodium polyacrylate, maltodextrin and polyoxyethylene aliphatic alcohol ether successively, then add water, stirring and dissolving under the rotating speed of 80-100r/min, obtain described harbour coal unloading terminal dust inhibitor.
Principle of the present invention and advantage as follows:
Harbour of the present invention coal unloading terminal dust-inhibitor select konjaku rubber powder and polyoxyethylene aliphatic alcohol ether with the use of, wherein polyoxyethylene aliphatic alcohol ether is a kind of anion surfactant, significantly can reduce the surface tension of water, improve dust inhibitor to the wettability of coal sample, konjaku rubber powder has good coalescence, the two is with the use of can quick humidification dust make its rapid flocking settling, thus reaches the object of depositing dust.
Simultaneously, sodium polyacrylate of the present invention has very strong water-retaining capacity, the maltodextrin stronger with locking outlet capacity, with the use of reaching the object hindering moisture to evaporate, makes dust-inhibitor have long anti-dust effect, effectively can prevent reentrainment of dust.
Further, the present invention selects konjaku rubber powder, maltodextrin has readily degradable, can not cause environmental pollution.
Embodiment
Below in conjunction with specific embodiment, harbour of the present invention coal unloading terminal dust-inhibitor is described in further detail, but does not limit the scope of the invention.
Embodiment 1
Get konjaku rubber powder 0.5 part, sodium polyacrylate 0.1 part, maltodextrin 0.2 part, polyoxyethylene aliphatic alcohol ether 0.01 part, 100 parts, water by weight, konjaku rubber powder, sodium polyacrylate, maltodextrin, polyoxyethylene aliphatic alcohol ether, water is added successively in the container that mechanical stirrer is housed, stir under the rotating speed of 80-100r/min, dissolve to obtain described harbour coal unloading terminal dust inhibitor finished product.
Embodiment 2
Get konjaku rubber powder 3 parts, sodium polyacrylate 1 part, maltodextrin 1.2 parts, polyoxyethylene aliphatic alcohol ether 0.1 part, 100 parts, water by weight, konjaku rubber powder, sodium polyacrylate, maltodextrin, polyoxyethylene aliphatic alcohol ether, water is added successively in the container that mechanical stirrer is housed, stir under the rotating speed of 80-100r/min, dissolve to obtain described harbour coal unloading terminal dust inhibitor finished product.
Embodiment 3
Get konjaku rubber powder 1 part, sodium polyacrylate 0.5 part, maltodextrin 0.8 part, polyoxyethylene aliphatic alcohol ether 0.06 part, 100 parts, water by weight, konjaku rubber powder, sodium polyacrylate, maltodextrin, polyoxyethylene aliphatic alcohol ether, water is added successively in the container that mechanical stirrer is housed, stir under the rotating speed of 80-100r/min, dissolve to obtain described harbour coal unloading terminal dust inhibitor finished product.
Comparative example
Harbour coal unloading terminal dust inhibitor in embodiment 1 is done anti-dust effect with water gaging such as grade test, testing method is as follows: carry out anti-dust effect experiment with dynamic coal flow simulated experiment stand to embodiment 1 and water.Coal sample consumption is 1kg, belt speed 3m/s, dust-inhibitor described in difference spray water, embodiment 1 while coal sample falls, the dust concentration of the dynamic coal sample sprayed after dust-inhibitor described in water, embodiment 1 is measured respectively with CCZ-1000 direct-reading type dust instrument, dust monitoring point position lays respectively at high-order belt transfer point place, low level belt discharging point place, the results are shown in Table 1.
Table 1
| Project | Untreated coal sample | Water | Embodiment 1 |
| Upper dust concentration mg/m after experiment 3 | 57.4 | 23.1 | 5.8 |
| Upper dust concentration mg/m after experiment 3 | 268.8 | 188.3 | 29.4 |
As can be seen from Table 1, the dust concentration produced after the dust concentration produced after spraying harbour coal unloading terminal dust inhibitor described in embodiment 1 will be starkly lower than spray water, harbour of the present invention coal unloading terminal dust inhibitor anti-dust effect is remarkable.
Each technical characteristic of the above embodiment can combine arbitrarily, for making description succinct, the all possible combination of each technical characteristic in above-described embodiment is not all described, but, as long as the combination of these technical characteristics does not exist contradiction, be all considered to be the scope that this specification sheets is recorded.
The above embodiment only have expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but can not therefore be construed as limiting the scope of the patent.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (6)
1. a harbour coal unloading terminal dust inhibitor, is characterized in that, is prepared from by the raw material of following parts by weight:
Konjaku rubber powder 0.5-3 part,
Sodium polyacrylate 0.1-1 part,
Maltodextrin 0.2-1.2 part,
Polyoxyethylene aliphatic alcohol ether 0.01-0.1 part,
100 parts, water.
2. harbour according to claim 1 coal unloading terminal dust inhibitor, is characterized in that, be prepared from by the raw material of following parts by weight:
Konjaku rubber powder 0.8-2 part,
Sodium polyacrylate 0.3-0.8 part,
Maltodextrin 0.5-1 part,
Polyoxyethylene aliphatic alcohol ether 0.03-0.08 part,
100 parts, water.
3. harbour according to claim 1 and 2 coal unloading terminal dust inhibitor, is characterized in that, konjac glucomanna content more than 70%, fineness >120 order in described konjaku rubber powder.
4. harbour according to claim 1 and 2 coal unloading terminal dust inhibitor, is characterized in that, described sodium polyacrylate molecular weight is 6,000,000-1,500 ten thousand.
5. harbour according to claim 1 and 2 coal unloading terminal dust inhibitor, is characterized in that, the DE value of described maltodextrin is 15.3
.
6. the preparation method of the harbour coal unloading terminal dust inhibitor according to any one of claim 1-5, it is characterized in that, comprise the steps: to add sodium polyacrylate, maltodextrin and polyoxyethylene aliphatic alcohol ether successively in described konjaku rubber powder, add water again, stirring and dissolving under the rotating speed of 80-100r/min, obtains described harbour coal unloading terminal dust inhibitor.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510376563.5A CN104893667B (en) | 2015-07-01 | 2015-07-01 | A kind of harbour coal unloading terminal dust inhibitor and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510376563.5A CN104893667B (en) | 2015-07-01 | 2015-07-01 | A kind of harbour coal unloading terminal dust inhibitor and preparation method thereof |
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|---|---|
| CN104893667A true CN104893667A (en) | 2015-09-09 |
| CN104893667B CN104893667B (en) | 2018-02-02 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20100093299A (en) * | 2009-02-16 | 2010-08-25 | 황수진 | Composition of scattering dust inhibitor for civil engineering and construction field |
| CN102093847A (en) * | 2010-12-23 | 2011-06-15 | 兰州天际环境保护有限公司 | Iron ore dust suppressant composition |
| CN103289647A (en) * | 2013-06-14 | 2013-09-11 | 鞍钢集团矿业公司 | Compound chemical dust suppressant as well as preparation method and application thereof |
| CN103965834A (en) * | 2013-01-28 | 2014-08-06 | 日照凯格环保科技有限公司 | Road surface dust suppressant and preparation method thereof |
-
2015
- 2015-07-01 CN CN201510376563.5A patent/CN104893667B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20100093299A (en) * | 2009-02-16 | 2010-08-25 | 황수진 | Composition of scattering dust inhibitor for civil engineering and construction field |
| CN102093847A (en) * | 2010-12-23 | 2011-06-15 | 兰州天际环境保护有限公司 | Iron ore dust suppressant composition |
| CN103965834A (en) * | 2013-01-28 | 2014-08-06 | 日照凯格环保科技有限公司 | Road surface dust suppressant and preparation method thereof |
| CN103289647A (en) * | 2013-06-14 | 2013-09-11 | 鞍钢集团矿业公司 | Compound chemical dust suppressant as well as preparation method and application thereof |
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