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Compound type environment-friendly dust suppressant as well as preparation and application thereof

A dust suppressant and composite technology, applied in other chemical processes, chemical instruments and methods, etc., can solve the problems of rapid water evaporation, weak dust cohesion, increased transportation costs, etc., and achieve simple and convenient preparation methods and reduce dust Effects of environmental pollution, ease of transport and storage

Active Publication Date: 2018-04-06
CHINA SHENHUA ENERGY CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this method is simple and easy to implement, it has weak adhesion to dust, and the water evaporates rapidly, so the dust suppression effect is relatively short-lived, which cannot meet the dust suppression requirements of open-pit coal pits; in addition, this method also consumes a lot of water resources , and increased transportation costs
Although the dust removal effect of dust suppressant is better than that of sprinkling water, the existing dust suppressant often has the following deficiencies: first, most of them are in liquid state and are not easy to store; There are different degrees of adverse effects on the soil, vegetation, etc., and the more obvious phenomenon is that the surrounding vegetation has different degrees of yellowing on the road surface that has been sprayed with dust suppressants.
Third, the existing dust suppressants still need to be improved in terms of moisturizing performance and dust suppression effect
Fourth, the cost of existing dust suppressants is high, which undoubtedly increases the cost of dust suppression
[0005] In summary, how to solve the technical problems of dust suppressants such as difficult storage, high cost, environmental protection, and poor dust suppression effect is one of the difficulties in this field that urgently needs to be broken through.

Method used

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  • Compound type environment-friendly dust suppressant as well as preparation and application thereof
  • Compound type environment-friendly dust suppressant as well as preparation and application thereof
  • Compound type environment-friendly dust suppressant as well as preparation and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Embodiment 1 is the preparation embodiment of composite environmental protection dust suppressant of the present invention, and its formula comprises each component of following mass percentage:

[0032] Polyvinyl alcohol 10%, carboxymethyl cellulose 20%, Na 2 SiO 3 10%, polyacrylamide 7%, sodium tripolyphosphate 6%, sodium polyacrylate 4%, sodium lauryl sulfate 3%, urea 14%, UV -9 0.8%, magnesium chloride 25.2%.

[0033] The preparation method of the composite environment-friendly dust suppressant of Example 1 is as follows: mix and stir all raw materials except magnesium chloride evenly to obtain a semi-finished product, then mix and stir the semi-finished product and magnesium chloride evenly; then pack it with an inner plastic bag, and place it in a cool place after sealing Store in a dry place for aging; after aging for seven days, a paste is obtained, which is the finished product. Dilute the product and water according to the mass ratio of 2:100, and its pH va...

Embodiment 2

[0035] Embodiment 2 is the preparation embodiment of composite environmental protection dust suppressant of the present invention, and its formula comprises each component of following mass percentage:

[0036] Polyvinyl alcohol 3%, carboxymethyl cellulose 30%, Na 2 SiO 3 5%, polyacrylamide 10%, sodium tripolyphosphate 3%, sodium polyacrylate 6%, sodium lauryl sulfate 1%, urea 18%, UV -9 0.2%, magnesium chloride 23.8%.

[0037] The preparation method of the composite environment-friendly dust suppressant of embodiment 2 is as follows: mix and stir all raw materials except magnesium chloride to obtain a semi-finished product, then mix and stir the semi-finished product and magnesium chloride evenly; then pack it with an inner plastic bag, and place it in a cool place after sealing Store in a dry place for aging; after aging for seven days, a paste is obtained, which is the finished product. Dilute the product and water according to the mass ratio of 2:100, and its pH value...

Embodiment 3

[0039] Embodiment 3 is the preparation embodiment of composite environmental protection dust suppressant of the present invention, and its formula comprises each component of following mass percentage:

[0040] Polyvinyl alcohol 15%, carboxymethyl cellulose 10%, Na 2 SiO 3 15%, polyacrylamide 2%, sodium tripolyphosphate 10%, sodium polyacrylate 1.5%, sodium lauryl sulfate 5%, urea 6%, UV -9 1%, magnesium chloride 34.5%.

[0041] The preparation method of the composite environment-friendly dust suppressant of embodiment 3 is as follows: mix and stir all raw materials except magnesium chloride evenly to obtain a semi-finished product, then mix and stir the semi-finished product and magnesium chloride evenly; then pack it with an inner plastic bag, and place it in a cool place after sealing Store in a dry place and age; age for 48 hours to obtain a paste, which is the finished product. Dilute the product and water according to the mass ratio of 2:100, and its pH value is 6.9...

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Abstract

The invention provides a compound type environment-friendly dust suppressant as well as a preparation method and application thereof. The compound type environment-friendly dust suppressant is characterized in that based on the total mass of the dust suppressant, the dust suppressant is prepared from the following components in percentage by mass: 18 to 60 percent of an adhesion composition, 5 to20 percent of a coagulation composition and 15 to 45 percent of a moisture absorbent, wherein the adhesion composition is a composition of polyvinyl alcohol, carboxymethyl cellulose and Na2SiO3; the coagulation composition is a composition of polyacrylamide and sodium tripolyphosphate. The compound type environment-friendly dust suppressant provided by the invention is easy to store and low in cost, and also has a relatively good dust suppression effect; the compound type environment-friendly dust suppressant is especially suitable for dust suppression of a pit road surface of an open coal mine.

Description

technical field [0001] The invention relates to the field of dust suppressants, further relates to an environment-friendly dynamic dust suppressant, in particular to a composite environment-friendly dust suppressant applicable to open-pit coal mines. Background technique [0002] As the production intensity of my country's open-pit mines continues to increase and the level of mechanization increases, it will inevitably lead to increasingly serious dust pollution in production operations. According to statistics, the dust production of transportation equipment is the first among all open-pit mining equipment, and it is the largest source of dust pollution in open-pit mines. The dust on the road not only seriously damages the health of the staff, but also pollutes the environment around the mining area and destroys the ecological system. In addition, dust entering the transport vehicle body will shorten the service life of the engine, increase vehicle maintenance, repair cost...

Claims

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Application Information

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IPC IPC(8): C09K3/22
CPCC09K3/22
Inventor 杨汉宏张铁毅周永利
Owner CHINA SHENHUA ENERGY CO LTD
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