CN111748320A

CN111748320A - Dust suppressant for transporting instant antirust coal

Info

Publication number: CN111748320A
Application number: CN201910229429.0A
Authority: CN
Inventors: 张志佩; 魏迎合
Original assignee: Hebei Detel Lubricating Oil Co ltd
Current assignee: Hebei Detel Lubricating Oil Co ltd
Priority date: 2019-03-26
Filing date: 2019-03-26
Publication date: 2020-10-09

Abstract

The invention discloses a dust suppressant for transporting instant antirust coal for dust control, which consists of 45% of sodium carboxymethylcellulose, 15% of carboxymethyl starch, 10% of polyvinyl alcohol, 5% of glycerol, 10% of sodium alkyl benzene sulfonate, 10% of triethanolamine oleate soap and 5% of TX-40. The emulsified dispersant is added, so that the hydrophilic group of the powdery dust suppressant is enhanced, and the powdery dust suppressant is easy to wet and disperse when meeting water, thereby achieving the characteristic of instant dissolution; the formula is compounded with the antirust agent, so that the antirust agent has a good antirust effect on dust suppression equipment; before use, the dust suppressant and water are mixed according to the use proportion to prepare a liquid, and the mixture is uniformly mixed; in addition, the invention has good dust suppression effect, high cost performance, simple technical process and operation, no toxic or side effect of independent components and solution thereof, easy degradation and no secondary pollution.

Description

Dust suppressant for transporting instant antirust coal

Technical Field

The invention relates to the field of dust suppression of railway coal, in particular to a dust suppressant for transporting instant antirust coal.

Background

As is well known, coal is an important energy source, and the coal mined in China at present is transported to all parts of the country for production and life. The transportation of coal is mainly carried out by railways, the coal is easy to fly with wind in the transportation process of the coal, the flying coal powder not only pollutes air, but also can cause harm to human health, and simultaneously can cause the loss of the coal. At present, when coal is conveyed by railways, the problem is solved by using a dust suppressant.

The existing powdery dust suppressant in the market has good cementation, permeability and crusting property, but is difficult to dissolve, needs special stirring liquid preparation equipment, and has large investment and inconvenient use. The liquid dust suppressant is easy to dissolve and convenient to use, but has the problems of thin shell formation, poor dust suppression effect and the like.

Disclosure of Invention

The invention aims to provide a quick-dissolving antirust coal transportation dust suppressant to solve the problems in the background technology.

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

the dust suppressant for transporting the instant antirust coal consists of five parts of coagulation, film forming, wetting, rust prevention and dispersion.

The coagulation component of the dust suppressant for transporting the instant antirust coal is sodium carboxymethyl cellulose and carboxymethyl starch, and the content of the component is 60%; the film forming component is polyvinyl alcohol, and the content of the component is 10 percent; the wetting component is glycerol, and the content of the component is 5 percent; the antirust component is sodium alkyl benzene sulfonate and oleic acid triethanolamine soap, and the content of the component is 20%; the dispersed component is TX-4, and the content of the component is 5 percent.

Namely, the dust suppressant for transporting the instant antirust coal is composed of 45% of sodium carboxymethylcellulose, 15% of carboxymethyl starch, 10% of polyvinyl alcohol, 5% of glycerol, 10% of sodium alkyl benzene sulfonate, 10% of triethanolamine oleate soap and 5% of TX-40.

The invention has the beneficial effects that: compared with the prior art, the invention enhances the hydrophilic group of the powdery dust suppressant by adding the emulsifying dispersant, and is easy to wet and disperse when meeting water, thereby achieving the characteristic of instant dissolution; the antirust agent is compounded in the formula, so that the antirust agent has a good antirust effect on dust suppression equipment, and does not corrode a stirring tank, a tank truck and spraying equipment; in addition, the water-soluble paint is prepared and dissolved immediately when being used, and a special stirring liquid preparation tank and circulating equipment are not needed, so that the equipment investment and the energy are saved; good shell forming and dust suppression effect.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

The coagulation component is sodium carboxymethyl cellulose and carboxymethyl starch, the content of the component is 60%, and the coagulation component can coagulate fine dust particles into larger particles and has good consolidation strength, so that the rising rate of dust is reduced.

The film forming component is polyvinyl alcohol, the content of the component is 10%, and the film forming component is used for forming a layer of molecular film on the surface of dust particles surrounded by water so as to reduce the evaporation speed of water.

The wetting component is glycerol, the content of the wetting component is 5%, the wetting component has strong hygroscopicity, and can absorb moisture in air and maintain the wetting degree of dust particles, so that the weight of the particles is increased, and dust emission is reduced.

The antirust component is sodium alkyl benzene sulfonate and oleic acid triethanolamine soap, the content of the component is 20%, the antirust component has a strong antirust effect, and the antirust component has a strong antirust effect on a liquid preparation and a spraying device of the dust suppressant.

The dispersing component is TX-4, the content of the component is 5%, and the dispersing component has the function of enhancing the hydrophilic group of the dust suppressant and is easy to wet and disperse when meeting water, so that the characteristic of quick dissolution is achieved.

The content ratio of the sodium carboxymethyl cellulose to the carboxymethyl starch in the coagulation component is 3: 1.

The content ratio of sodium alkyl benzene sulfonate to triethanolamine oleate soap in the antirust component is 1: 1.

Namely, the dust suppressant for transporting the instant antirust coal is composed of 45% of sodium carboxymethylcellulose, 15% of carboxymethyl starch, 10% of polyvinyl alcohol, 5% of glycerol, 10% of sodium alkyl benzene sulfonate, 10% of triethanolamine oleate soap and 5% of TX-40; in the implementation, when the dust suppressant is prepared into liquid before spraying, water is used as a solvent to prepare spraying liquid with different dilution ratios.

Wherein the raw materials used in examples one to two were all obtained by commercial purchase, unless otherwise specified.

The first embodiment is as follows: dust suppression for railway coal transportation

According to the dust suppressant: water =1:200, and the prepared dust suppressant can be filled into spraying equipment to realize spraying.

Example two: dust suppression device for material yard

According to the dust suppressant: water =1:150, and the prepared dust suppressant can be filled into a watering cart or other spraying equipment to realize spraying.

According to the TB/T3210.1-2009 standard of technical conditions of dust suppression in railway coal transportation, the viscosity, the film forming time and the wind erosion rate of the dust suppression agent prepared in the first embodiment and the second embodiment are detected (the detection temperature is 25 ℃), and the detection results are shown in Table 1:

TABLE 1

Examples	Viscosity (mPa. sec)	Film Forming time (min)	Wind erosion Rate (%)
				Example one	17.0	57	0.4
Example two	25.0	54	0.3

The coal dust flying is brought up when the coal mine railway transportation is monitored by setting two monitoring points, the actual dustproof effect of the dust suppressant is judged, and the monitoring result is shown in table 2:

TABLE 2

Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.

Claims

1. The dust suppressant for transporting the instant antirust coal consists of five parts of coagulation, film forming, wetting, rust prevention and dispersion;

the coagulation component comprises 60% of sodium carboxymethyl cellulose and carboxymethyl starch, and the content ratio of the sodium carboxymethyl cellulose to the carboxymethyl starch is 3: 1;

the film forming component is polyvinyl alcohol, and the content of the component is 10%;

the wetting component is glycerol, and the content of the component is 5%;

the antirust component comprises 20% of sodium alkyl benzene sulfonate and oleic acid triethanolamine soap, and the content ratio of the sodium alkyl benzene sulfonate to the oleic acid triethanolamine soap is 1: 1;

the dispersion component is TX-4, and the content of the component is 5%.