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

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...

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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 suppression effect on fine dust, and the implementation effect is limited by the size of the gauze net, and it cannot prevent rainwater erosion; although the action time of hygroscopic inorganic salts is improved compared with water, it is limited by air humidity and other conditions, and will Cause secondary pollution to the environment

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