CN111171791A - Road dust suppressant and preparation method thereof - Google Patents

Abstract

The invention discloses a road dust suppressant, which comprises the following components in parts by weight: glycerin, a surfactant, a surface adhesive and water. The invention utilizes physical and chemical properties, keeps moist for a long time through good moisture retention, moisture absorption and bonding effects, and can bond and adsorb dust on the road surface, thereby inhibiting secondary dust emission on the dust road surface caused by vehicle running and strong wind, and solving the problem of road dust emission to a certain extent at source.

Description

Road dust suppressant and preparation method thereof

Technical Field

The invention relates to the technical field of road dust control, in particular to a road dust suppressant and a preparation method thereof.

Background

The harm caused by road dust has attracted high attention of society, and the treatment of traffic dust is urgent. For the particulate matter, road raise dust is the source of particulate matter, is the acceptor of particulate matter again, consequently wants to control road raise dust pollution, the source of first control road raise dust, and the second is the principle that the content of the deposited raise dust of reduction road surface administers road raise dust from the source reduces the production of particulate matter to reach the purpose that reduces road raise dust. Can be scientifically and reasonably planned, and can adopt the three-dimensional greening thinking of combining grass, trees and shrubs to green roads, eliminate bare ground and reduce wind erosion and water erosion. Meanwhile, the dust suppression management of construction sites and plant and mining areas is enhanced, and related dust suppression measures are strengthened, particularly, the construction vehicles entering and leaving the construction sites are required to implement specific effective measures such as fully-closed transportation, cleaning of vehicle bodies and tires and the like. The particulate matter deposited on the road surface is the most main component of road dust emission, and the road dust emission can be reduced only by effectively reducing the dust deposition on the road surface. In terms of technical level, measures such as road cleaning, water sprinkling and dust suppressant spraying are adopted, and relevant standards are formulated in terms of control target level.

Therefore, it is necessary to provide an auxiliary agent with high efficiency to ensure the water retention, wetting and consolidation of the road surface during the road watering process.

Disclosure of Invention

The invention aims to provide a road dust suppressant and a preparation method thereof, which are used for controlling dust of paved and unpaved roads.

In order to achieve the purpose, the invention provides the following technical scheme:

a road dust suppressant comprises the following components by weight:

preferably, the surfactant is a nonionic surfactant, a cationic surfactant or an anionic surfactant.

Preferably, the surface binder is polyacrylate.

Preferably, the water is deionized water.

The preparation method of the road dust suppressant comprises the following steps:

step 1) adding water into a reaction kettle at normal temperature;

step 2) adding a surfactant, then starting stirring, adding glycerol and a surface binder in sequence after the surfactant is completely dissolved, and then fully and uniformly mixing the mixed solution;

and 3) standing and filling the mixed solution to obtain the product of the invention.

Compared with the prior art, the invention has the beneficial effects that:

the glycerol has good rheological property, thermal stability, lasting adhesion, elastoplasticity, electrical insulation and water resistance, and fine dust particles are adhered to the road surface or form large agglomerated particles by using the adhesion of the glycerol to help the sedimentation of the fine dust particles.

The invention has the functions of wetting, water retention and consolidation, can ensure that the road surface keeps a wet state to adsorb dust, and can form a consolidation layer on the dust suppression surface to ensure that the dust is not raised for the second time.

The invention utilizes physical and chemical properties, keeps moist for a long time through good moisture retention, moisture absorption and bonding effects, and can bond and adsorb dust on the road surface, thereby inhibiting secondary dust emission on the dust road surface caused by vehicle running and strong wind, and solving the problem of road dust emission to a certain extent at source.

The invention has simple operation, no secondary pollution and no harm to human body; the action time is long, and the single effective time is about 5 days; the invention can be biodegraded without affecting vegetation growth; the invention has wide application range and can be suitable for various working conditions such as municipal roads, storage yards, construction sites and the like.

Detailed Description

The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Case 1

Asphalt dust suppression surface dust control

Adding 2% of surfactant into a reaction kettle at normal temperature, then stirring until the surfactant is completely dissolved, then sequentially adding 3% of glycerol and 30% of surface binder, fully and uniformly mixing the mixed solution, and then standing and filling to obtain the finished product of the road dust suppressant.

Case 2

Raised dust treatment of non-paved road surface of construction site

Adding 2% of surfactant into a reaction kettle at normal temperature, then stirring until the surfactant is completely dissolved, then sequentially adding 3% of glycerol and 30% of surface binder, fully and uniformly mixing the mixed solution, and then standing and filling to obtain the finished product of the road dust suppressant.

The main technical indexes of the products of the above examples 1-2 of the invention are as follows:

the embodiment 1 has better functions of water retention, moisture absorption and bonding, and can be used for controlling dust on asphalt pavements.

Example 2 has good water retention, moisture absorption and bonding functions and can be used for controlling dust on asphalt pavements.

The table shows that the product can keep the dust suppression effect for 5-7 days after being sprayed once, can be used on the pavement of a building site and the asphalt pavement in a large area, can slightly increase the concentration when being used in winter, is low-temperature resistant, is not easy to freeze on the pavement, is non-toxic and harmless, has no influence on surrounding vegetation, is easy to biodegrade, and is an environment-friendly product. The product has simple use method and can be added in watering lorries and fog gun trucks for use.

When spraying, the agent is mixed with water according to the concentration ratio of 1 per thousand for use, and can be sprayed on the surface of a dust suppression surface under the pressure of 3-4kg/m2, the dosage of the agent is about 20L per 100 square meters, and the dust suppression effect can be kept for 5-7 days.

The duration of the dust emission is related to the road surface condition and the weather factor, and the time frequency of spraying can be adjusted according to the road surface condition and the atmospheric condition.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.

Claims (5)

1. The road dust suppressant is characterized by comprising the following components in parts by weight:

2. the road dust suppressant according to claim 1, characterized in that: the surfactant is a nonionic surfactant, a cationic surfactant or an anionic surfactant.

3. The road dust suppressant according to claim 1, characterized in that: the surface binder is polyacrylate.

4. The road dust suppressant according to claim 1, characterized in that: the water is deionized water.

5. The method for preparing a road dust suppressant according to any one of claims 1 to 4, characterized by comprising the steps of:

step 1) adding water into a reaction kettle at normal temperature;

step 2) adding a surfactant, then starting stirring, adding glycerol and a surface binder in sequence after the surfactant is completely dissolved, and then fully and uniformly mixing the mixed solution;

and 3) standing and filling the mixed solution to obtain the road dust suppressant.