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Road dust depressor and preparation method thereof

A dust suppressant and road technology, applied in building components, building insulation materials, buildings, etc., can solve the problems of toxicity, volatile secondary pollution, and single function, achieve safe use, simple daily operation, and improve the working environment. Effect

Inactive Publication Date: 2015-11-04
宁夏浤森环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, although the existing dust suppressants have made progress in water retention and hygroscopicity, they generally have problems such as single function or limited by environmental factors such as high temperature and low temperature, or toxicity, road corrosion, volatility and secondary pollution.

Method used

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  • Road dust depressor and preparation method thereof
  • Road dust depressor and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Dust Control on Asphalt Pavement

[0019] Add 70% deionized water to the reaction kettle at room temperature, start stirring and heat to 50°C, add 4% anhydrous calcium acetate in batches, add 10% glycerol after completely dissolving, and then add 3 % surface active agent, 8% road asphalt, 3% solubilizer and 2% sodium metasilicate, stir and dissolve until homogeneous, and obtain a brown-dark brown aqueous solution, which is left to stand, cooled, and canned to obtain road dust suppressant finished product.

[0020] The finished road dust suppressant has good moisturizing, moisture absorption and bonding properties, and is mainly used for dust control on asphalt pavement.

Embodiment 2

[0022] Dust Control of Unpaved Soil Pavement in Construction Site

[0023] Add 62% deionized water to the reaction kettle at room temperature, start stirring and heat to 50°C, add 5% anhydrous calcium acetate in batches, add 15% glycerol after completely dissolving, and then add 5% % surface active agent, 8% road asphalt, 4% co-solvent and 1% sodium metasilicate, stirring and dissolving until homogeneous, to obtain a brown-dark brown aqueous solution, standing, cooling, and canning to obtain road dust suppressant finished product.

[0024] The finished product of road dust suppressant has better moisturizing, moisture absorption and bonding properties, and is suitable for unpaved soil roads such as construction sites.

Embodiment 3

[0026] Control of Road Dust in Open Pit Mine Area

[0027] Add 54% deionized water to the reaction kettle at room temperature, start stirring and heat to 50°C, add 5% anhydrous calcium acetate in batches, add 20% glycerol after completely dissolving, and then add 5% % surface active agent, 10% road asphalt, 5% co-solvent and 1% sodium metasilicate, stirring and dissolving until homogeneous, to obtain a brown-dark brown aqueous solution, standing, cooling, and canning to obtain road dust suppressant finished product.

[0028] The finished road dust suppressant has better moisturizing, moisture absorption and bonding properties, and is suitable for the treatment of road dust such as fine-grained coal ash and clay caused by large-scale vehicle rolling in coal yards and open-pit coal mines.

[0029] The main technical indicators of the product of the above embodiment 1~embodiment 3 of the present invention are as follows table 1:

[0030]

[0031] It can be seen from Table 1 ...

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Abstract

The invention discloses a road dust depressor and a preparation method thereof. The road dust depressor is prepared from 0.5-10% of petroleum asphalt, 5-20% of glycerol, 1-5% of anhydrous calcium acetate, 0.5-5% of a surfactant, 1-5% of a cosolvent, 1-2% of sodium metasilicate and 55%-90% of water. The preparation method includes: at room temperature, adding deionized water into a reaction kettle, starting stirring and conducting heating to 50DEG C, adding anhydrous calcium acetate in batches, after complete dissolving, adding glycerol, after dissolving, adding the surfactant, road asphalt, the co-solvent and sodium metasilicate in order, performing stirring dissolving to a homogeneous phase so as to obtain a brown-black brown aqueous solution, and carrying out standing, cooling and filling, thus obtaining a finished product. The road dust depressor has good moisture retention, moisture absorption and adhesion, and has remarkable dust suppression effect and long dust suppression period. The product is safe to use, has no corrosion to metal, is non-toxic, can be biodegradable, has no influence to vegetation, is an environment friendly product, and can be widely applied to dust control of unpaved roads, urban asphalt pavement, strip mine roads and the like.

Description

Technical field: [0001] The invention belongs to the technical field of road dust control, and in particular relates to a road dust suppressant and a preparation method thereof. The dust suppressant can be used for dust control of paved and unpaved roads. Background technique: [0002] Road dust in cities or open-pit mines is unorganized emission, and a large amount of dust will cause great pollution to the surrounding environment. The most important control method to suppress dust is sprinkling water. The main function of sprinkling dust suppression is to moisten fine dry dust particles to increase their relative density and bond them into larger particles so that they cannot fly under the action of external force. However, due to the weak binding force between dust and water, the water evaporates quickly, which cannot meet the needs of long-term effective dust suppression. Frequent watering is necessary to effectively suppress dust, which consumes a lot of water resources,...

Claims

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Application Information

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IPC IPC(8): C09K3/22C08L95/00C08K3/34C08K5/053
Inventor 史学良李心宇
Owner 宁夏浤森环保科技有限公司
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