CN105038709A - Windproof dust inhibitor used in coal yard and preparation method thereof - Google Patents
Windproof dust inhibitor used in coal yard and preparation method thereof Download PDFInfo
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- CN105038709A CN105038709A CN201510376574.3A CN201510376574A CN105038709A CN 105038709 A CN105038709 A CN 105038709A CN 201510376574 A CN201510376574 A CN 201510376574A CN 105038709 A CN105038709 A CN 105038709A
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Abstract
The invention discloses a windproof dust inhibitor used in a coal yard and a preparation method thereof. The windproof dust inhibitor is prepared from the following components in parts by weight: 0.1 to 0.8 part of xanthan gum and maltodextrin, 3 to 7 parts of glycerol and propylene glycol, 0.5 to 4 parts of polyvinyl alcohol, 1.5 to 5.5 parts of diethylene glycol, 1.5 to 2 parts of sodium diacetate, 0.5 to 1 part of OP-10, and 100 parts of water. The provided windproof dust inhibitor has the advantages of good permeability, caking property, moisture absorbing performance, and water retaining property, is sprayed on the coal piles to effectively prevent the wind corrosion, has a good dust inhibiting effect, and also has the characteristics of no toxicity, no pollution, easy degradation, and user-friendliness.
Description
Technical field
The present invention relates to technical field of environment pollution control, particularly relate to a kind of coal yard wind-proof dust-suppression agent and preparation method thereof.
Background technology
The energy structure of China is based on coal.According to statistics, within 2010, coal in China usage quantity reaches 3,000,000,000 tons, will reach 4,000,000,000 tons to the year two thousand twenty, and coal is principal modes of AND ENERGY RESOURCES CONSUMPTION IN CHINA in nearly decades.But fire coal in storage process fields such as () colliery, harbour, industrial enterprises because the erosion of wind-force can produce a large amount of airborne dusts, not only can produce the environment of surrounding and pollute greatly, and cause the waste of resource.
At present, for the Treatment process of coal yard airborne dust mainly based on physical method, administer airborne dust problem and adopt following two kinds of methods: method of 1. sprinkling water, the method of watering adds the water content of coal stream surface or the surperficial coal of dump, increase the quality of coal particle, therefore certain dust suppression effect is had, but moisture is evaporated very soon, effective dust suppression is held time short, water loss is high, and watering also causes the water content of coal to raise, and its net calorific value is reduced, reduce the thermo-efficiency of boiler, general effect is undesirable; 2. the wind comes from or change wind direction of the wind comes from reach dust suppression effect by building isolation, as: windbreak, closed coal bunker, have certain effect to dust-proof, but cost of investment is large, and easily several ten million or several hundred million.
Based on this, chemically develop the agent of a kind of coal yard wind-proof dust-suppression and be very important.
Summary of the invention
Based on this, be necessary to provide the agent of a kind of coal yard wind-proof dust-suppression.
The agent of a kind of coal yard wind-proof dust-suppression, is prepared from by the raw material of following parts by weight:
Xanthan gum and maltodextrin 0.1-0.8 part,
Glycerol and propylene glycol 3-7 part,
Polyvinyl alcohol 0.5-4 part,
Diethylene Glycol 1.5-5.5 part,
Sodium Diacetate 1.5-2 part,
OP-100.5-1 part,
100 parts, water.
Wherein in an embodiment, be prepared from by the raw material of following parts by weight:
Xanthan gum and maltodextrin 0.3-0.5 part,
Glycerol and propylene glycol 4-6 part,
Polyvinyl alcohol 2-4 part,
Diethylene Glycol 2.5-4.5 part,
Sodium Diacetate 1.7-1.9 part,
OP-100.6-0.8 part,
100 parts, water.
Wherein in an embodiment, 1% solution viscosity of described xanthan gum is 2000-5000mPas, fineness >120 order, and xanthan gum and maltodextrin ratio are 3:1.
Wherein in an embodiment, described dust-inhibitor glycerol and propylene glycol ratio are 1:2.
Wherein in an embodiment, the polymerization degree of described polyvinyl alcohol is 2300-2500, and preferred degree of polymerization is 2400.
Prepare the method for this coal yard wind-proof dust-suppression agent, comprise following steps:
(1), by xanthan gum and maltodextrin be added to the water, at 50 DEG C, rapid stirring dissolves;
(2), glycerol and propylene glycol to be joined in the mixture of step (1) and to stir;
(3), by polyvinyl alcohol be added to the water, stirring and dissolving at 90 DEG C, is joined in the mixture of step (2) after cooling;
(4) respectively Diethylene Glycol, sodium Diacetate, OP-10 are joined in the mixture of step (3), after stirring, namely obtain coal yard wind-proof dust-suppression agent solution.
Principle of the present invention and advantage as follows:
The major cause that coal-burning power plant's dump plays dirt is: dump outdoor storage, and top layer coal sample is extremely low due to the effect water content of Exposure to Sunlight wind, causes coal sample loose, as easy as rolling off a log generation airborne dust under erosion action in wind.
Based on this principle: the present invention adopts full-bodied xanthan gum and maltodextrin as binding agent, dump top layer coal sample is made to form one deck duricrust, glycerol and propylene glycol have the moisture that very strong water absorbability effectively can keep top layer coal sample together with membrane-forming agent polyvinyl alcohol, OP-10 can improve the perviousness of dust-inhibitor, increase the depth of penetration of dust-inhibitor in coal seam, increase crust thickness.Therefore xanthan gum, maltodextrin, glycerol, propylene glycol, several material of polyvinyl alcohol are used in combination, and the erosion effectively can resisting wind-force suppresses airborne dust.
In addition, the material that the present invention selects has degradability, can not cause environmental pollution.
Further, present invention adds a certain amount of Diethylene Glycol, ensure that dust-inhibitor can normally use at low temperature-5 DEG C-0 DEG C.
Further, the present invention adds a certain amount of sodium Diacetate, ensures that dust-inhibitor can be preserved for a long time.
Embodiment
Below in conjunction with specific embodiment, dust-inhibitor of the present invention and preparation method thereof is described in further detail, but does not limit the scope of the invention.
Embodiment 1
(1), join in 50 parts of water by xanthan gum and maltodextrin 0.5 part (be 3:1 by xanthan gum and maltodextrin ratio), at 50 DEG C, rapid stirring dissolves;
(2), glycerol and propylene glycol 5 parts (glycerol and propylene glycol ratio are 1:2) to be joined in the mixture of step (1) and to stir;
(3), by polyvinyl alcohol 2 parts join in 50 parts of water, stirring and dissolving at 90 DEG C, joined in the mixture of step (2) after cooling;
(4) respectively Diethylene Glycol 3 parts, sodium Diacetate 1.7 parts, OP-100.8 part are joined in the mixture of step (3), after stirring, namely obtain coal yard wind-proof dust-suppression agent solution.
Embodiment 2
(1), join in 50 parts of water by xanthan gum and maltodextrin 0.1 part (be 3:1 by xanthan gum and maltodextrin ratio), at 50 DEG C, rapid stirring dissolves;
(2), glycerol and propylene glycol 3 parts (glycerol and propylene glycol ratio are 1:2) to be joined in the mixture of step (1) and to stir;
(3), by polyvinyl alcohol 0.5 part join in 50 parts of water, stirring and dissolving at 90 DEG C, joined in the mixture of step (2) after cooling;
(4) respectively Diethylene Glycol 1.5 parts, sodium Diacetate 1.5 parts, OP-100.5 part are joined in the mixture of step (3), after stirring, namely obtain coal yard wind-proof dust-suppression agent solution.
Embodiment 3
(1), join in 50 parts of water by xanthan gum and maltodextrin 0.8 part (be 3:1 by xanthan gum and maltodextrin ratio), at 50 DEG C, rapid stirring dissolves;
(2), glycerol and propylene glycol 7 parts (glycerol and propylene glycol ratio are 1:2) to be joined in the mixture of step (1) and to stir;
(3), by polyvinyl alcohol 4 parts join in 50 parts of water, stirring and dissolving at 90 DEG C, joined in the mixture of step (2) after cooling;
(4) respectively Diethylene Glycol 5.5 parts, sodium Diacetate 2 parts, OP-101 part are joined in the mixture of step (3), after stirring, namely obtain coal yard wind-proof dust-suppression agent solution.
Comparative example
In the present embodiment by the dust-inhibitor in embodiment 1 with etc. the water of quality be sprayed at respectively and dump does dust suppression rate test, testing method is as follows:
Using the sample of without inhibitor as blank sample, 10ml embodiment 1 dust-inhibitor is sprayed respectively and water carries out dust suppression Performance comparision on dump surface, sample is all placed in identical wind power system, wind speed is 3-4m/s, purge it, the wind time is 1min, then weighs, the coal sample of not spraying any solution is carried out wind as blank sample, and the quality of pc be blown away is as blank dust emission.Dust suppression rate is calculated in table 1 by comparing.
Table 1
As can be seen from Table 1, spray the Dust depression of coal stock pile rate of embodiment 1 more than 98%, coal yard wind-proof dust-suppression of the present invention agent has good anti-dust effect for dump.
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. the agent of coal yard wind-proof dust-suppression, is characterized in that, is prepared from by the raw material of following parts by weight:
Xanthan gum and maltodextrin 0.1-0.8 part,
Glycerol and propylene glycol 3-7 part,
Polyvinyl alcohol 0.5-4 part,
Diethylene Glycol 1.5-5.5 part,
Sodium Diacetate 1.5-2 part,
OP-100.5-1 part,
100 parts, water.
2. a coal yard wind-proof dust-suppression according to claim 1 agent, is characterized in that, is prepared from by the raw material of following parts by weight:
Xanthan gum and maltodextrin 0.3-0.5 part,
Glycerol and propylene glycol 4-6 part,
Polyvinyl alcohol 2-4 part,
Diethylene Glycol 2.5-4.5 part,
Sodium Diacetate 1.7-1.9 part,
OP-100.6-0.8 part,
100 parts, water.
3. coal yard wind-proof dust-suppression according to claim 1 and 2 agent, is characterized in that, 1% solution viscosity of described xanthan gum is 2000-5000mPas, fineness >120 order, and xanthan gum and maltodextrin ratio are 3:1.
4. coal yard wind-proof dust-suppression according to claim 1 and 2 agent, is characterized in that, in described dust-inhibitor, glycerol and propylene glycol ratio are 1:2.
5. coal yard wind-proof dust-suppression according to claim 1 and 2 agent, is characterized in that, the polymerization degree of described polyvinyl alcohol is 2300-2500
.
6. the preparation method of the coal yard wind-proof dust-suppression agent according to any one of claim 1-5, is characterized in that, comprise the steps:
(1), by xanthan gum and maltodextrin be added to the water, at 50 DEG C, rapid stirring dissolves;
(2), glycerol and propylene glycol to be joined in the mixture of step (1) and to stir;
(3), by polyvinyl alcohol be added to the water, stirring and dissolving at 90 DEG C, is joined in the mixture of step (2) after cooling;
(4), respectively Diethylene Glycol, sodium Diacetate, OP-10 are joined in the mixture of step (3), after stirring, namely obtain coal yard wind-proof dust-suppression agent solution.
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| CN201510376574.3A CN105038709B (en) | 2015-07-01 | 2015-07-01 | A kind of coal yard wind-proof dust-suppression agent and preparation method thereof |
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| CN105885795A (en) * | 2016-05-26 | 2016-08-24 | 覃政强 | Dust suppressant and preparing method thereof |
| CN106867459A (en) * | 2017-02-28 | 2017-06-20 | 韦尧天 | A kind of dust suppressant and preparation method thereof |
| CN112666337A (en) * | 2020-12-15 | 2021-04-16 | 广东电网有限责任公司电力科学研究院 | Device and method for evaluating effect of inhibiting physical loss of coal yard |
| CN113462360A (en) * | 2021-08-10 | 2021-10-01 | 北京首创大气环境科技股份有限公司 | Low-viscosity environment-friendly crusting dust suppressant |
| CN115838549A (en) * | 2022-11-22 | 2023-03-24 | 南方电网电力科技股份有限公司 | Coal pile surface covering agent and preparation method and application thereof |
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| CN112666337A (en) * | 2020-12-15 | 2021-04-16 | 广东电网有限责任公司电力科学研究院 | Device and method for evaluating effect of inhibiting physical loss of coal yard |
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| CN115838549A (en) * | 2022-11-22 | 2023-03-24 | 南方电网电力科技股份有限公司 | Coal pile surface covering agent and preparation method and application thereof |
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| CN105038709B (en) | 2017-10-24 |
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