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Road dust suppressant as well as preparation method and application thereof

A dust suppressant and road technology, applied in chemical instruments and methods, other chemical processes, etc., can solve problems such as limiting the application of road dust suppressants, affecting the dust suppression effect of dust suppressants, and road safety issues, achieving excellent dust suppression Dust effect, excellent dust suppression effect, high dust suppression efficiency effect

Inactive Publication Date: 2018-09-28
BEIJING RUI HONGXING TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, most of the existing road dust suppressants are non-freezing type, which are suitable for use in higher temperature environment (for example: summer), and when used in lower temperature winter environment, they are often easy to freeze, not only will Affect the dust suppression effect of dust suppressant, and it is likely to cause road safety problems, which seriously limits the application of road dust suppressant in low temperature environment

Method used

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  • Road dust suppressant as well as preparation method and application thereof
  • Road dust suppressant as well as preparation method and application thereof
  • Road dust suppressant as well as preparation method and application thereof

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preparation example Construction

[0055] The present invention also provides the preparation method of the above-mentioned road dust suppressant, comprising the following steps: dissolving polyvinyl alcohol in water according to metering, and then adding water-based polyurethane dispersion, alcohol, water-soluble cellulose, silicate, Alginate, emulsifier, preservative, defoamer, mixed well, ready to use.

[0056] Due to the solubility of polyvinyl alcohol in water, it is related to its degree of alcoholysis: when the degree of alcoholysis is 86% to 89%, the water solubility is the best, and it can be dissolved quickly in cold water and hot water; the degree of alcoholysis is 90% When the degree of alcoholysis is above 99%, it is only soluble in hot water above 95°C in order to dissolve completely.

[0057] The present invention provides a kind of road dust suppression agent by adopting specific component and proportioning, its each index (PM2. efficiency, antifreeze performance, etc.) can meet the requirement...

Embodiment 1

[0071] By weight, the present embodiment road dust suppressant comprises the following components:

[0072]

[0073] Preparation:

[0074] According to the measurement, take polyvinyl alcohol (PVA1788), add water (it will dissolve soon at room temperature), then add water-based polyurethane dispersion, ethylene glycol, water-soluble cellulose, sodium silicate, sodium alginate, emulsifier, antiseptic Agent, antifoaming agent, mix, obtain the present embodiment road dust suppression agent.

Embodiment 2

[0076] By weight, the present embodiment road dust suppressant comprises the following components:

[0077]

[0078] Preparation:

[0079] According to the measurement, take polyvinyl alcohol (PVA2488), add water (it dissolves quickly at room temperature), then add water-based polyurethane dispersion, ethylene glycol, water-soluble cellulose, sodium silicate, sodium alginate, emulsifier, antiseptic Agent, antifoaming agent, mix, obtain the present embodiment road dust suppression agent.

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Abstract

The present invention discloses a road dust suppressant as well as a preparation method and application thereof, and belongs to the field of environmental protection for flying dust prevention and control. The present invention provides a novel road dust suppressant, which comprises the following components in percentage by weight: 0.1-5% of polyvinyl alcohol, 0.1-5% of high-molecular emulsion, 15-30% of ethylene glycol, 0.05-2% of water-soluble cellulose, 0.05-2% of silicate, 0.05-2% of alginate, 0.01-2% of emulsifier, 0.01-2% of preservative, 0.01-0.5% of defoamer and the balance of water. The road dust suppressant of the present invention, with particular components in particular proportions, can meet the standard requirements in tests on physical and chemical indexes and properties, and is safe, environmentally friendly, and very suitable for the control of flying dust pollution of roads such as urban roads, construction roads and the like. Thus, an effective solution is provided for improving the atmospheric environment and reducing the haze pollution.

Description

technical field [0001] The invention belongs to the environmental protection field of dust prevention and control, and in particular relates to a road dust suppressant and its preparation method and application. Background technique [0002] Dust suppressant, quickly captures and firmly absorbs particulate dust. After drying, it can solidify and form a film on the surface of the dust, playing the role of dust suppression and dust prevention. It can be widely used in coal and mineral powder transportation, mineral earthwork storage and unloading sites , Building demolition, municipal roads and other places. [0003] According to different application places, dust suppressants are mainly divided into road dust suppressants, coal dust suppressants, mine dust suppressants, etc. They have different performance requirements for dust suppressants. Among them, the regulations on road dust suppressants and Requirements (China Environmental Protection Industry Association Standard T / ...

Claims

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Application Information

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IPC IPC(8): C09K3/22
CPCC09K3/22
Inventor 陈宁娟
Owner BEIJING RUI HONGXING TECH CO LTD
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