Ecological dust reducing agent and preparing method thereof

Abstract

An ecological dust reducing agent and preparation method thereof,components of which according to the mass percentage: 3-12% of hydrolyzing the animal protein ,0.15-0.8% of surfactant , 0.35-1% of film forming agent , 0.11-3.12% of auxiliary agent with the balance being water. The preparation method comprises the following steps: (1) adding the hydrolyzed animal protein, surfactant and film-forming agent into the water at 40-60 degrees Celsius to mix them proportionally; (2) adding the foam stabilizing agent into mixture solutions from the step 1; (3) the mixed solution obtained in the step (2) is slowly poured into a vessel, stirred and stirred with a mixer. And the pH is adjusted to 6- 8 with the PH regulator to obtain a dust-reducing agent. The invention proposes an ecological dedusting agent,which has functions of film formation, wetting and condensing. And it is with the hydrolyzed animal protein as the main body, which is non-corrosive. It has no toxic effect on the human body after being inhaled and no pollution to the environment. It has a high settling efficiency on the dust in the air and can be formed the continuous, complete and strong shell membrane to prevent the secondary dust.

Description

technical field [0001] The invention relates to the technical field of dust suppression, in particular to an ecological dust suppression agent and a preparation method thereof. Background technique [0002] PM2.5 refers to particulate matter with a particle size of no more than 2.5 μm in the atmosphere, also known as particulate matter that can enter the lungs. A large number of them float in the air and have a very serious impact on human health and the quality of the atmospheric environment. Man-made emissions produce PM2. A major reason for .5. The process of man-made emissions includes road transportation dust, industrial production dust, municipal engineering and construction site dust, etc. At present, China is in a period of rapid economic development, and the output value of various industrial productions such as steel industry and foundry industry is getting higher and higher. Various construction sites can be seen everywhere, and the demand for road transportation...

AI Technical Summary

Problems solved by technology

In recent decades, many countries have made a lot of research progress in dust suppression agents, but these dust suppression agents have toxic and side effects to varying degrees, and some are corrosive, refractory, water and soil pollution, etc.

CN200810057756.4 uses silica gel as the main raw material, and adds lignin, other additives and water, and mixes it under heating to prepare a dust suppressant. The proportion of silica gel in the raw material is more than 80%. Although silica gel can be degraded, However, it needs to be in a strong acid or strong alkali environment; CN201010204156.3 prepares a dust suppressant with polymer synthetic water-soluble polymer, propylene glycol phenyl ether, polyvinyl alcohol redispersed rubber powder, polyacrylic acid ammonium salt and water, which has certain toxicity. Can cause secondary pollution; CN201210329645.0 uses sodium carboxyethyl cellulose, sodium carboxypropyl starch, hydrogen peroxide, glycerol, calcium chloride, sodium fluoride, polyvinyl alcohol, ethylene glycol, dibutyl phthalate , bentonite and water to make a dust suppressant, the process is relatively complicated, and the product has certain corrosiveness; CN201110160998.8 prepares a dust suppressant with natural latex, natural plant fiber, glycerin, surfactant and water, and has good degradability , but the cost is high, and the effect on floating dust is unknown; the literature "Development of Dust-fixing and Dust-Suppressing Agent" uses calcium chloride and water glass as the main raw materials, and adds a small amount of polyvinyl alcohol, ethylenediamine and dodecyl Sodium benzenesulfonate has prepared a dust suppressant, the surface tension is relatively large, being 54.2mN / m, the process is relatively complicated and chloride ions have certain harm to equipment and the environment; Research "Preparation of carboxymethyl chitosan dust suppressant by chloroacetic acid modified chitosan, the preparation process is complicated, time-consuming, high cost, the effect is best when the pH is 3.5, it is harmful to the human body and the environment