Preparation method of plant straw moisturizing dust suppressant

Abstract

The invention belongs to the technical field of dust suppressants, and discloses a preparation method of a plant straw moisturizing dust suppressant. The preparation method of the plant straw moisturizing dust suppressant comprises the following steps: (1) crushing dried plant straw, sieving the crushed plant straw with a 40-60-mesh sieve to obtain plant straw powder particles, putting the plant straw powder particles into an extrusion bulking machine for extrusion bulking treatment, then crushing, sieving the extruded plant straw powder particles with a 180-220-mesh sieve, adding an ethanol aqueous solution with a mass fraction of 30-40%, and then adding OP-40 for microwave treatment to obtain a mixed solution; and (2) adding peroxidase into the mixed solution obtained in the step (1), carrying out enzymolysis at 35-45 DEG C for 14 hours, carrying out ultrasonic dispersion, sequentially adding cholic acid, a polyvinyl alcohol aqueous solution with the mass fraction of 25-30% and spodumene, and carrying out stirring reaction at 55-65 DEG C for 25 hours to obtain viscous fluid, namely the plant straw moisturizing dust suppressant. The plant straw moisturizing dust suppressant prepared by the method disclosed by the invention is mainly prepared from biomass, is easy to degrade, does not easily cause secondary pollution, has strong moisturizing property and high dust suppression rate, and has a dust suppression period as long as 22 days.

Description

technical field [0001] The invention relates to the technical field of dust suppressants, in particular to a preparation method of a plant straw moisturizing dust suppressant. Background technique [0002] Dust can be divided into two categories according to particle size: the one with large diameter is called falling dust, which is heavy and easy to settle, and the one with small diameter is called floating dust, which floats in the air for a long time in the form of aerosol and cannot be seen by naked eyes. Dust contains a variety of heavy metals, and the floating dust can absorb various toxic substances, some of which are carcinogens. The air quality of most cities in my country is affected by dust, among which dust from construction sites and roads, and dust from coal mines dominate. [0003] The dust suppressant is composed of a new type of multifunctional polymer. The cross-linked molecules in the polymer form a network structure, and there are various ionic groups be...

AI Technical Summary

Problems solved by technology

Generally speaking, the dust suppression effect of a single dust suppressant is not ideal. In order to make the effect of the dust suppressant better, the preparation process of the dust suppressant is becoming more and more complicated, and gradually develops in the direction of compound and special types.