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Wetting type dust suppressant for road flying dust, and preparation method thereof

A dust suppressant and road technology, applied in the direction of chemical instruments and methods, other chemical processes, etc., can solve the problems of road dust wettability without example demonstration, road surface can not meet the long-term effective dust suppression, and affect the pH of dust suppressant, etc., to achieve Long-term moisturizing performance, improved dust suppression efficiency, and superior performance

Active Publication Date: 2020-04-14
ANSTEEL GRP MINING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, water spraying method is mainly used at home and abroad to suppress dust on the road surface. Sprinkling water is simple and convenient, but the evaporation speed is fast and the action time is short. The road surface with a large dust thickness cannot meet the long-term effective dust suppression requirements.
Most of the existing road dust suppressants are used in the field of coal transportation. For example, the patent CN 102295915 B discloses a dust suppressant for the coal surface of the carriage. After spraying, it can form a solidified film on the coal surface. Dust suppressant can be used in mines and urban roads, but because this type of dust suppressant is developed for coal dust, there is no example demonstration of the wettability of road dust; patent CN 102660227 B discloses a road dust suppressant, which consists of 0.1 ~2.0% water-soluble high molecular polymer, 20~50% hygroscopic agent, 1.0~5.0% preservative, 0.5~5.0% penetrating agent and the rest of water are mixed together. High concentration of hygroscopic agent will affect the pH of the dust suppressant, which in turn will affect the viscosity of the dust suppressant during the dissolution process of other materials of the dust suppressant

Method used

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  • Wetting type dust suppressant for road flying dust, and preparation method thereof
  • Wetting type dust suppressant for road flying dust, and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A wetting dust suppressant consisting of the following components in mass percent: CaCl 2 : 15%, Span-80: 0.2%, Glycerin: 0.5%, Methylcellulose: 1%, Sodium Dodecyl Benzene Sulfonate: 0.4%, Sodium Lactate: 0.5%, Urea: 0.5%, Water: 81.9% .

[0038] Its preparation method is:

[0039] (1) Divide water into three parts: 315g of A, 252g of B, and 252g of C. Heat A to 50°C, B and C to 40°C;

[0040] (2) Mix 2g of Span-80, 10g of methylcellulose and 150g of CaCl 2 After mixing evenly, mix with part A water, keep stirring at 100rpm / min for 40min, then cool to room temperature to obtain aqueous solution a;

[0041] (3) Mix 5 g of sodium lactate, 5 g of glycerin and 5 g of urea with part B of water, and after stirring for 40 min at a rotating speed of 100 rpm / min, add 4 g of sodium dodecylbenzenesulfonate, and then add part of water to obtain aqueous solution b;

[0042] (4) Stir the aqueous solution b at a rotational speed of 100 rpm / min, add the aqueous solution a, stir for...

Embodiment 2

[0054] A wetting dust suppressant consisting of the following components in mass percent: CaCl 2 : 10%, Span-80: 0.1%, glycerin: 2%, xanthan gum: 0.7%, sodium fatty acid ethyl sulfonate: 0.3%, sodium lactate: 0.2%, urea: 0.9%, water: 85.8%.

[0055] Its preparation method is:

[0056] (1) Divide water into three parts: 286g of A, 286g of B, and 286g of C. Heat A to 60°C, and heat B and C to 50°C;

[0057](2) The Span-80 of 1g, the xanthan gum of 7g and the CaCl of 100g 2 After mixing evenly, mix with part A water, keep stirring at 300rpm / min for 30min, then cool to room temperature to obtain aqueous solution a;

[0058] (3) Mix 2g of sodium lactate, 20g of glycerin and 9g of urea with water in part B, heat and stir for 30min at a rotating speed of 300rpm / min, then add 3g of sodium fatty acid ethyl ester sulfonate, and then add in part C of water to obtain aqueous solution b;

[0059] (4) Stir the aqueous solution b at a rotational speed of 150 rpm / min, add the aqueous solut...

Embodiment 3

[0062] A wetting dust suppressant consisting of the following components in mass percent: CaCl 2 : 5%, Span-80: 0.6%, glycerin: 1%, polyacrylamide: 1%, sodium oleamide: 0.5%, sodium lactate: 0.2%, urea: 2%, water: 89.7%.

[0063] Its preparation method is:

[0064] (1) Divide water into three parts: 280g of A, 308g of B, and 309g of C. Heat A to 55°C, B and C to 45°C;

[0065] (2) 6g of Span-80, 10g of polyacrylamide and 50g of CaCl 2 After mixing evenly, mix with part A water, keep stirring at 200rpm / min for 35min, then cool to room temperature to obtain aqueous solution a;

[0066] (3) Mix 2 g of sodium lactate, 10 g of glycerin and 20 g of urea with part B of water, heat and stir at 200 rpm / min for 35 min, add 5 g of sodium oleamide, and then add part C of water to obtain aqueous solution b;

[0067] (4) Stir the aqueous solution b at a rotational speed of 130 rpm / min, add the aqueous solution a, stir for 10 minutes, and cool to room temperature to obtain the finished pr...

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Abstract

A purpose of the invention is to research and develop a composite road flying dust wetting material with characteristics of convenient use, long effective action time and low cost. The invention provides a wetting type dust suppressant for road flying dust, and a preparation method thereof, and belongs to the field of road flying dust control. The wetting type dust suppressant is prepared from thefollowing raw material components in percentage by mass: 0.1-2% of sodium lactate, 0.1-6% of Span-80, 0.1-3% of glycerol, 0.1-5% of a binder, 0.5-5% of urea, 1-20% of CaCl2, 0.1-1% of a surfactant and the balance of water. According to the wetting type dust suppressant disclosed by the invention, the humectant, the moisture absorbent, the surfactant and the binder are combined, so that a certainwater content of a road surface is continuously kept, the road dust suppression effect is ensured, the material strength is high, and the action effect of the dust suppressant is improved.

Description

technical field [0001] The invention belongs to the field of road dust control, in particular to a wetting dust suppressant for road dust and a preparation method thereof. Background technique [0002] The pavement of the open-pit mine stope is a simple pavement paved with gravel or soil, and there is a large amount of fine dust on the surface. . The high-concentration dust raised by automobiles not only endangers the health of workers and driving safety, but also causes huge losses to the mine economy due to the existence of high-concentration dust that increases the wear and tear of mining machinery and fuel consumption. Therefore, taking measures to control road dust is a problem that every mine must face. [0003] At present, water spraying method is mainly used at home and abroad to suppress dust on the road surface. Sprinkling water is simple and convenient, but the evaporation speed is fast and the action time is short, which cannot meet the long-term and effective ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K3/22
CPCC09K3/22
Inventor 徐连生孙健许灏高江赵虹崔兆杰崔媚华杜冰峰
Owner ANSTEEL GRP MINING CO LTD
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