Moistening agent for coal mine spray and dust reduction and preparation method

A technology of spraying dust reduction and wetting agent, which is applied in the fields of dust suppression and mine dust prevention. It can solve the problems of difficult degradation of surfactants, secondary environmental pollution, and poor dust suppression effect, so as to avoid secondary pollution and enhance wetting ability. , the effect of reducing surface tension

Active Publication Date: 2018-11-23
SHANDONG UNIV OF SCI & TECH
View PDF5 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method has disadvantages such as poor dust suppression effect, high cost, and high toxicity, and tradi

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Moistening agent for coal mine spray and dust reduction and preparation method
  • Moistening agent for coal mine spray and dust reduction and preparation method
  • Moistening agent for coal mine spray and dust reduction and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0024] The present invention also provides a preparation method of the above-mentioned moisturizing agent, such as figure 1 shown, it includes the following steps:

[0025] Step 1, after dissolving the lignosulfonate in water, add vinyl acetate, set the temperature of the constant temperature stirrer to 60°C and stir for 30 minutes, and then add the initiator to the above solution after all the dissolved and fully mixed React at 60°C for 2 hours to obtain the first solution;

[0026]

[0027] Step 2, add 2-acrylamide-2-methylpropanesulfonic acid and the crosslinking agent to the first solution and continue to react for 1 hour to obtain the final product;

[0028]

[0029] In step 3, antifreeze and corrosion inhibitor are added to the final product, fully stirred, and the pH value is adjusted to obtain the above-mentioned moisturizing agent.

Example Embodiment

[0031] Example 1:

[0032] Weigh 2g of sodium lignosulfonate and 4ml of vinyl acetate and dissolve it in 200ml of water. After fully dissolving and stirring for 30min, add 0.5g of ammonium persulfate to the solution, and stir and react at a constant temperature of 60°C for 2 hours. 2 g of 2-acrylamide-2-methylpropanesulfonic acid and 0.5 g of N-N-methylenebisacrylamide were added to the solution, and the reaction was continued to stir for 2 hours at 60°C. After the reaction is completed, add 0.3g calcium chloride and 0.2ml phosphorus carboxylic acid to the solution to adjust the pH, take 2ml and 0.2g dodecyl dimethyl betaine and add them to 1L water at the same time and mix evenly to test the relevant performance.

Example Embodiment

[0033] Example 2:

[0034] Weigh 2g of sodium lignosulfonate and 4ml of vinyl acetate and dissolve it in 200ml of water. After fully dissolving and stirring for 30min, add 0.5g of ammonium persulfate to the solution, and stir and react at a constant temperature of 60°C for 2 hours. Then 4 g of 2-acrylamide-2-methylpropanesulfonic acid and 0.5 g of N-N-methylenebisacrylamide were added to the solution, and the reaction was continued to stir for 2 hours at 60°C. After the reaction is completed, add 0.3 g of calcium chloride and 0.2 ml of phosphorus carboxylic acid to the solution, adjust the pH, and add 2 ml and 0.2 g of dodecyl dimethyl betaine to 1 L of water to mix evenly, and test the relevant properties.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a moistening agent for coal mine spray and dust reduction and a preparation method thereof. The moistening agent is prepared from 3% to 5% of lignosulfonate, 3% to 5% of vinylacetate, 3% to 5% of 2-acrylamide-2-methyl propanesulfonic acid, 0.05% to 0.1% of an initiator, 0.02% to 0.04% of a crosslinking agent, 0.3% to 0.6% of an antifreezing agent, 0.2% to 0.4% of a corrosion inhibitor and the balance of water, wherein sodium lignosulphonate is utilized as a matrix to perform polymerization reaction with vinyl acetate and 2-acrylamide-2-methyl propanesulfonic acid, so that generated polymer not only keeps degradable performance of sodium lignosulphonate, but also can make fog drops have moistening and bonding functions. When the moistening agent for coal mine sprayand a surface active agent are compounded to be applied into a spray system, wettability of spray to coal dust is further improved, the fog drops can effectively moisten and wrap the dust; thus, the dust suppression efficiency is greatly improved, and dust dispersion is reduced; furthermore, the moistening agent can be naturally decomposed, so that the situation of secondary pollution caused by dust fall is prevented from happening.

Description

technical field [0001] The invention relates to the field of dust prevention and suppression in mines, in particular to a moisturizer for coal mine spray dust suppression and a preparation method. Background technique [0002] With the advancement of science and technology, the degree of mechanization and automation of coal mining is getting higher and higher, and the dust generated in this process is also increasing. Coal mine dust is one of the main disaster sources that seriously endanger the safety of underground production and the health of personnel. The hazards of coal dust mainly include the following aspects: first, spontaneous combustion or even explosion may occur under certain conditions, which may easily lead to gas explosion accidents; As the concentration of respirable dust increases, it seriously threatens the physical and mental health of underground workers in coal mines, and greatly increases the probability of suffering from pneumoconiosis and other lung ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C08F289/00C09K3/22
CPCC09K3/22C08F289/00
Inventor 周刚丁建飞孙健高丹红潘红卫
Owner SHANDONG UNIV OF SCI & TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap