At present, hydraulic support emulsified liquid products, widely used mainly by the Coal Research Institute in the 1980s developed the M-10 and MDT series, are based on the base oil (mineral oil) as a carrier, the proportion of about 50% (remainder surfactant and additives), with the emulsifier, rust inhibitors, complexing agents and other additives as emulsified oil, emulsified oil and 5% of 95% of water to form an oil-in-water (O / W type ) dispersion system has a certain anti-hard water, commonly used for domestic hydraulic support various metals and sealing materials have some rust and adaptability. However, such a conventional hydraulic support system thermodynamically unstable emulsions belong, its stability is conditional, in the course of the precipitation is still some oil soap, causing the filter blocking, require frequent cleaning filter, which precipitates oil soap and coal dust to form a viscous material is difficult to clean, use the job site will cause many adverse effects on the electro-hydraulic control system vapor filter assembly is blocked. In addition, the current use of emulsified oil contamination of water sources is also flawed, after the emulsion leaks and emissions, will continue to experience various complications breaking their own, so that mineral oil separated from the relatively stable performance of mineral oil, a major component of pollution , pollute the environment, particularly contamination of underground water resources, thus solving the problem of emulsified oil pollution of the environment is also imminent.

China Coal Research Institute after a lot of research and testing, has developed a new synthetic hydraulic support hydraulic fluid, compared to traditional emulsified oil has superior characteristics: formulation contains no mineral oil, due to the longer contain mineral oil, several composite emulsifier and a hydrophilic lubricant mutual solubilization, formation of a thermodynamically stable system, which greatly improve stability, while the composite efficient protection against rust inhibitors, thereby greatly improving the overall performance. It can significantly reduce the disassembly cleaning filter and the pilot workload and provide better protection. In addition to fully protect the lubricating properties, he also has a more superior rust resistance of ferrous metal and non-ferrous metals rust resistance. New synthetic hydraulic support with performance indicators concentrate, the coal industry by the Beijing Mine oil testing centers, national production Beijing Mine oil inspection test center security, and made a safety certification mark, fully meet coal industry standard MT76-2002 "hydraulic support (column) with emulsified oil, concentrates its high water content hydraulic fluid" standard.

Product advantages:
· Different from the traditional hydraulic support emulsified oil, dissolved in water to form a clear transparent liquid.
* Does not contain mineral oils, lubricants and composite mutual solubilization emulsifier to form a thermodynamically stable system, greatly enhanced stability.
· Composite efficient corrosion preventive additive overall performance greatly improved, can significantly reduce the workload of disassembly cleaning filters and pilot valve.
* With inspection certificate national security authorities of the State coal mines with product safety certification mark.
· Compared with traditional emulsified oil performance better, more affordable.
· At present there is no such products, market prospects on the market.
· In line with national security policy, in line with national environmental policies, enrich the connotation of the product. 2) boiler water total hardness (H). The total content of the water to form water scale or slag calcium, magnesium, and the unit is mmol / L. GB1576 -2001 standard, water hardness ≤0.03 mmol / L. Including total hardness temporary hardness and permanent hardness. This material needs but also in terms of molecular weight if it is H2O, then, 1mmol / L = (18) mg / L CaCO3 if it is, then, 1mmol / L = (100) mg / L