Cooperative moisture-retaining antifreezing coal dust inhibitors and preparation method thereof

Abstract

The invention relates to cooperative moisture-retaining antifreezing coal dust inhibitors and a preparation method thereof. The objective of the invention is to provide a series of coal dust inhibitors has high-efficiency moisture-retaining, dust-suppressing and antifreezing functions by using compounding and synergistic interaction technology. The coal dust inhibitors comprise a binder, a film forming agent, an osmotic agent, a humectants, a flocculating agent, an antifreezing agent and water. The coal dust inhibitors can be prepared by mixing solutions with related concentrations, or materials can be added while dissolving. The coal dust inhibitors comprise, by mass, 22 to 52% of calcium chloride (33%), 4 to 16% of glycol (10%), 0 to 8% of glycerin (30%), 1 to 26% of CMC (2.5%), 0 to 26% of PVA (1%), 0 to 17% of PAM (1%), 3 to 19% of JFC (5%) and 0 to 22% of magnesium chloride (30%). In usage, the coal dust inhibitors are directly sprayed on a coal pile, coal flowing passages and the like; and if the coal dust inhibitors are in the form of fine water mist, moistening and penetration are better facilitated and the usage amount of water can be reduced.

Description

technical field [0001] The invention relates to a synergistic moisturizing antifreeze coal dust inhibitor and a preparation method thereof. Background technique [0002] Coal dust not only causes waste of coal resources and environmental pollution, but also can cause pneumoconiosis and coal dust explosions in miners. The results of the study show that there is a clear relationship between the total airborne particulate mass and the population mortality rate. Data from London, Steubenville, and Philadelphia show that if 100ugTSP is contained in every cubic meter of air, the death rate will increase by 6%. For the elderly and those with respiratory diseases, mortality from emphysema increased by 32%, mortality from bronchitis and asthma increased by 12%, and mortality from cardiovascular disease increased by 9%. In almost every coal yard in my country, there are varying degrees of dust pollution problems, especially in the northern region, when the climate is dry and windy, ...

AI Technical Summary

Problems solved by technology

The main reason is that some dust suppressants have a single function, often fail to achieve the expected effect, and cannot fully adapt to various complex actual situations in reality, and the cost of one-time investment and use of composite dust suppressants is also very high, and ordinary enterprises are unwilling to bear it; , Coal dust dust suppressant has its particularity, not only requires good dust suppression effect, but also does not affect the subsequent processing and utilization of coal

These have affected the practical application of coal dust inhibitors