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Dust suppressant and preparation method and application thereof

A technology of dust suppressant and moisturizing agent, applied in the field of dust suppressant and its preparation, can solve the problems of low dust suppression efficiency, equipment corrosion, long degradation time, etc., so as to improve the wetting efficiency, strengthen the bonding characteristics, and improve the moisturizing effect. sexual effect

Inactive Publication Date: 2020-06-30
BEIJING MINING & METALLURGICAL TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, there are few dust suppressant products for mine sites, and they are mainly a single type of dust suppressant, with low dust suppression efficiency
In addition, domestic inorganic chemical dust suppressants generally take a long time to degrade after spraying, and they will infiltrate or flow into local waters with rainwater, which will easily cause secondary pollution and other problems. In addition, they may also cause equipment corrosion. It is difficult to effectively improve the storage time and moisturizing time of the cured layer

Method used

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  • Dust suppressant and preparation method and application thereof

Examples

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preparation example Construction

[0076] According to another aspect of the present invention, a method for preparing the above-mentioned dust suppressant is provided, comprising the following steps: uniformly mixing the components to obtain the dust suppressant. The method has simple process, and the prepared dust suppressant has the advantages of high dust suppression efficiency, safety, environmental protection and low cost.

[0077] In a preferred embodiment, the vegetable gum, humectant, wetting agent, thickener and optional bactericide are mixed once, then mixed with water for the second time, and the pH of the solution is adjusted to obtain the dust suppressant . In this preferred embodiment, the raw materials except water are firstly mixed, and then mixed with water for the second time, and then the pH is adjusted to reach a suitable pH to obtain the dust suppressant.

[0078] Preferably, the conditions for the secondary mixing include: the stirring speed is 800-1000 rpm, and the stirring time is 30-5...

Embodiment 1

[0086] A dust suppressant, comprising the following components in parts by mass: 62 parts of vegetable glue, 24 parts of humectant, 8 parts of wetting agent and 2.5 parts of thickener, and water, the concentration of dust suppressant is 0.15wt% , pH is 7;

[0087] The vegetable gum is guar gum, the humectant is sodium carboxymethylcellulose and carboxymethyl starch with a mass ratio of 1:1, the wetting agent is cetyltrimethylammonium chloride, and the thickener is a molecular weight of The polyacrylamide of 13 million; The viscosity of the aqueous solution of the sodium carboxymethyl cellulose of 2wt% is 750cps;

[0088] The dust suppressant is prepared by the following method: mix vegetable glue, humectant, wetting agent and thickener once, then mix with water twice (stirring speed is 700rpm, stirring time is 25min), adding citric acid to adjust the pH of the solution , get dust suppressant.

Embodiment 2

[0090] A dust suppressant, comprising the following components in parts by mass: 60 parts of vegetable glue, 28 parts of humectant, 12.5 parts of wetting agent, 3 parts of thickener, and water.

[0091] The mass parts of plant gum, humectant, wetting agent and thickener are different from Example 1 in this example, and the rest are all the same as Example 1.

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Abstract

The invention relates to the field of mineral dust treatment, and particularly provides a dust suppressant and a preparation method and application thereof. The dust suppressant is composed of the following components in parts by mass: 60 to 62 parts of vegetable gum, 24 to 28 parts of a humectant, 8 to 12.5 parts of a wetting agent and 2.5 to 3 parts of a thickening agent. The dust suppressant has the advantages of good dust suppression effect, high dust suppression efficiency, good environmental protection property, easily-degradable raw materials, small secondary pollution, low cost, long moisturizing time and long cured layer preservation time, has the characteristics of multiple dust suppressants, and has good adaptability to the environment of mine tailings ponds.

Description

technical field [0001] The invention relates to the field of mineral dust control, in particular to a dust suppressant and its preparation method and application. Background technique [0002] The development of dust suppressants has a history of nearly 100 years. In recent years, the research and development of dust suppressants at home and abroad have been rapidly promoted, and they have begun to be widely used in railway transportation, urban roads, construction sites and coal mining environments. [0003] The hazards of dust particles are various. The regional pollution of dust during mining and transportation in mines is particularly prominent. The construction conditions of mines are constantly changing. In harsh environments, the problem of dust in tailings ponds needs to be solved. Untimely treatment will endanger the health of workers and affect the regional air quality, and the use of dust suppressants is an important measure to improve the air quality of mines. ...

Claims

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Application Information

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IPC IPC(8): C09K3/22E21F5/06E21F5/16
CPCC09K3/22E21F5/06E21F5/16
Inventor 王瑀辉李强卢亚平吴萌陈雁南罗彤彤薛广海
Owner BEIJING MINING & METALLURGICAL TECH GRP CO LTD
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