Stockyard dust emission inhibitor as well as preparation method and application thereof

Abstract

The invention provides a stockyard dust emission inhibitor as well as a preparation method and an application thereof. The stockyard dust emission inhibitor is prepared from components forming the formula in parts by weight as follows: 5-20 parts of oxidized starch, 0.8-2.0 parts of modified cellulose, 2-10 parts of EVA emulsion, 0.6-0.8 parts of polyvinyl alcohol, 0.1-1 part of an emulsifier, 0.2-2 parts of a penetrant, 0.05-0.2 parts of a coalescing agent and the balance of water. The preparation method of the stockyard dust emission inhibitor comprises steps of preparing the oxidized starch, pretreating the raw materials, premixing the raw materials and mixing and stirring the raw materials. The dilution ratio and the spray times are determined according to the actual dust capacity, the dust emission inhibitor is diluted with water in a ratio of the dust emission inhibitor to water being 1:(10-20), then the solution is injected into high-pressure spray equipment and uniformly sprayed to the surfaces of stock piles in the dosage of 1.5 L / m<2> or higher, after the solution is dried, a polymer solidified layer with certain strength is formed on the stock surface, and stockyard dust emission inhibition is completed. The stockyard dust emission inhibitor is stable in quality, good in film-forming performance, high in solidified layer strength and wide in suitable material range, improves the environment after spray, can resist heavy weather and is long in spray cycle.

Description

technical field [0001] The invention relates to the technical field of dust inhibitors, in particular to a stockyard dust inhibitor and its preparation method and application. Background technique [0002] The research results show that in the total suspended particulate matter in the urban air, the contribution rate of dust has reached or exceeded 50%, and the major stockyards are one of the main sources of dust. Due to the small size and light weight of the bulk materials stacked in the open air, under the action of wind and rain erosion, it is easy to cause dust pollution, which not only loses materials, but also damages the environment and endangers the health of urban residents. In the process of material transportation, such as coal railway transportation, under the action of wind and turbulence during transportation, it is very easy to cause coal dust pollution, directly causing a waste of coal resources, and also causing great damage to crops along the line, nearby r...

AI Technical Summary

Problems solved by technology

Due to the small size and light weight of the bulk materials stacked in the open air, under the action of wind and rain erosion, it is easy to cause dust pollution, which not only loses materials, but also damages the environment and endangers the health of urban residents

In the process of material transportation, such as coal railway transportation, under the action of wind and turbulence during transportation, it is very easy to cause coal dust pollution, directly causing a waste of coal resources, and also causing great damage to crops along the line, nearby residents and railway facilities. harm

[0003] In order to suppress the dust in the stockyard, sprinkling water is the most common method at present. Frequent sprinkling of water is a serious waste of water resources, and it cannot prevent dust from standing stockyards that have been stacked for a long time and bulk materials that have been transported over long distances. Due to the high temperature and fast evaporation in northern my country in summer (generally spraying can only last for about 10 minutes at a time), while the temperature in winter is low, easy to freeze, and the air is dry, its practical application is greatly restricted, so sprinkling dust suppression is not an efficient and economical anti-corrosion method. In addition, the mechanical covering method is also a relatively common method of dust suppression, but it is costly, wastes materials, requires a lot of manpower, material resources and time, is inconvenient to operate, and is slow

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