High-molecular coagulation cohesive dust suppression agent and preparation method thereof

A technology of dust suppressant and polymer, which is applied in the field of polymer coagulation-bonded dust suppressant and its preparation, can solve the problems of poor suppression effect of fine dust covered with dust-proof net, secondary pollution of the environment, waste of water resources, etc. Achieve the effects of facilitating the implementation of dust suppression operations, improving coverage efficiency, and reducing internal friction

Active Publication Date: 2018-11-23
SHANDONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the main methods to prevent dust are sprinkling water, covering dust-proof nets and spraying hygroscopic inorganic salts, etc., but the dust suppression effect of water sprinkling is short, and the effect on hydrophobic dust is extremely poor, resulting in waste of water resources; covering The dust-proof net has poor

Method used

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  • High-molecular coagulation cohesive dust suppression agent and preparation method thereof
  • High-molecular coagulation cohesive dust suppression agent and preparation method thereof
  • High-molecular coagulation cohesive dust suppression agent and preparation method thereof

Examples

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Example Embodiment

[0028] The present invention also provides a method for preparing the above polymer cohesive bonding type dust suppressant, such as figure 1 As shown, it includes the following steps:

[0029] Step 1: Dissolve hydroxyethyl cellulose and polyacrylamide in water according to the proportions, mix them together after dissolving uniformly, add initiators in proportion, and stir and react for 1 hour to 2 hours at 60°C-80°C to obtain First solution

[0030]

[0031] Step 2: Add the neutralized itaconic acid and the crosslinking agent to the first solution according to the ratio, and stir and react for 1 hour to 2 hours at 60°C-80°C to obtain the second solution;

[0032]

[0033] Step 3: Add antifreeze and surfactant to the second solution according to the proportion, and stir and react for 1 hour to 2 hours at 60°C-70°C to obtain the polymer cohesive bonding type dust suppressant.

Example Embodiment

[0035] Example 1

[0036] Weigh 1.5g of hydroxyethyl cellulose and dissolve it in 200ml of water, dissolve another 3g of polyacrylamide in 50ml of water and add 0.1g of cerium ammonium nitrate, mix with hydroxyethyl cellulose, and stir for 1 hour at 65°C. . Then, 7 ml of itaconic acid with a neutralization degree of 80% and 0.08 g of N,N-methylene bis-polyacrylamide were added, and the reaction was stirred at a constant temperature of 65° C. for 1 hour. Add 0.03 g potassium monododecyl phosphate and 0.05 g sodium dodecyl sulfonate, add water to 300 ml, and react with stirring at 60° C. for 1 hour. Finally test the relevant performance.

Example Embodiment

[0037] Example 2

[0038] Weigh 1.5g of hydroxyethyl cellulose and dissolve it in 200ml of water, dissolve another 3g of polyacrylamide in 50ml of water and add 0.1g of cerium ammonium nitrate, mix with hydroxyethyl cellulose, and stir for 1 hour at 65°C. . Then, 8 ml of itaconic acid with a neutralization degree of 80% and 0.08 g of N,N-methylene bis-polyacrylamide were added, and the reaction was stirred at a constant temperature of 65° C. for 1 hour. Add 0.03 g potassium monododecyl phosphate and 0.05 g sodium dodecyl sulfonate, add water to 300 ml, and react with stirring at 60° C. for 1 hour. Finally test the relevant performance.

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Abstract

The invention discloses a high-molecular coagulation cohesive dust suppression agent and a preparation method thereof. The dust suppression agent is prepared from the following components: 0.5-1.0% ofhydroxyethyl cellulose, 1-2% of polyacrylamide, 2-4% of itaconic acid, 0.01-0.03% of an initiator, 0.01-0.02% of a cross-linking agent, 0.01-0.02% of an anti-freezing agent, 0.01-0.02% of a surfactant and the balance water. The dust suppression agent and the preparation method thereof have the advantages that the hydroxyethyl cellulose serves as a matrix and is subjected to graft copolymerizationreaction with the polyacrylamide, so that the frictional resistance of a solution is reduced, the liquidity of the solution is improved, then a proper amount of itaconic acid is grafted to enable thesolution to become colloid with relatively good liquidity and diffusivity, the anti-freezing performance of the dust suppression agent is improved by adding a small amount of anti-freezing agent, dust can be covered, a dense coating is formed on the surface of the dust, after the dense coating becomes dry and hard, the dense coating and dust together form a hard shell, the dust suppression agenthas the advantages of being non-toxic, environmentally friendly, low in price and biodegradable, and secondary environmental pollution is avoided.

Description

technical field [0001] The invention relates to the field of inhibitors for dust prevention in mines and cities, in particular to a polymer cohesive bonding type dust inhibitor and a preparation method thereof. Background technique [0002] With the continuous development of the level of urbanization, buildings, roads and bridges in cities are constantly being demolished and constructed. Although people's quality of life has been improved, the dust pollution caused during the demolition and construction process has a very serious impact on the urban environment. A large amount of dust will inevitably be generated during the construction process, and these fine dusts will be diffused by the wind, covering the environment near the construction site with a layer of "dust veil". The dust dispersed in the wind has caused great troubles to the passing crowd, and living in this environment for a long time will cause extremely adverse effects on people's health. [0003] Remote are...

Claims

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Application Information

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IPC IPC(8): C09K3/22C08F291/06C08F291/12C08F222/02C08F222/38
CPCC08F251/02C08F265/10C09K3/22
Inventor 周刚马云龙李帅龙丁建飞王家远魏星
Owner SHANDONG UNIV OF SCI & TECH
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