Environment-friendly dust suppressant and preparation method thereof

Abstract

The invention discloses an environment-friendly dust suppressant and a preparation method thereof, belonging to the field of dust suppression control. The dust suppressant consists of the following components: water, a base material, natural starch, a surfactant and a synergist at the mass ratio of 100 to (1-20) to (1-20) to (0.1-5) to (0.1-10). The preparation method of the dust suppressant comprises the following steps: adding 1-20 parts of the base material to 50 parts of the water, continuously stirring, and heating until continuously boiling for 30min; adding 0.1-5 parts of the surfactant to 25 parts of the water, stirring and uniformly mixing; adding the prepared surfactant solution to the boiled base material solution and stirring for 10min; adding 25 parts of the water, adding 1-20 parts of the starch when the temperature is controlled at 60 DEG C, continuously stirring, preserving temperature at 70 DEG C, and stopping heating when the starch is under the state of being completely gelatinized; adding 0.1-10 parts of the synergist and continuing to stir for 10min; and carrying out magnetizing treatment under a magnetic field intensity of 50mT for 1-5min, standing by and cooling to obtain the dust suppressant. The adopted raw materials are excellent in environmental and economic benefits.

Description

technical field [0001] The invention belongs to the field of dust suppression control, especially the control of dust caused by unorganized discharge of roads, mineral powders and their waste dumps, construction waste dumps, etc., and specifically relates to an environment-friendly dust suppressant and a preparation method thereof. Background technique [0002] In recent years, as people have higher and higher requirements for the quality of the air environment, the emission standards for pollutant control have become more and more stringent, and the control of TSP, PM in the air environment 10 , PM 2.5 However, due to the rapid development of industry, the excessive exploitation and use of resources, the destruction of vegetation, the rapid increase of vehicles, and the large-scale construction of infrastructure, dust emissions have not decreased but increased. In view of the dust pollution caused by unorganized discharge of roads, mineral powders and their waste dumps, an...

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Problems solved by technology

[0003] Chinese patent CN103242805A discloses a novel environment-friendly road dust suppressant made of water, residual oil and surfactant; The dust suppression covering agent made of the above two kinds of dust suppression agents has a wide range of raw materials, low price, and simple and easy preparation method, but the residue oil, crosslinking agent and initiator used are all toxic to a certain extent, difficult to degrade, and cause secondary pollution

Chinese patent CN101787261A has announced a kind of modified cellulose or modified starch, modified nano particle matrix, ethanol etc. as the coal dust suppressant of nuclear film structure of raw materials, but the preparation of modified nano particle matrix is ​​difficult to control; Chinese patent CN102627430A A special covering agent for construction waste prepared by using sodium carboxymethyl cellulose as a film-forming agent and treated construction waste as a filler is announced. The production process of the covering agent is simple, but it has high requirements for the construction waste crushing process; China Patent CN03121134.8 discloses an environmentally friendly dust covering agent prepared by using corn stalks, starch, lime powder and additives, which has the advantages of good effect and low price, but for non-hydrophilic materials such as coal and other mineral storage yards field has certain limitations