1, solubilization. So that part of the free gaseous gas is dissolved in the coal body, and part of the free gaseous gas adheres to the surface of the coal body and becomes non-free solid gas.
2. catalysis. Under the catalysis of gas solvent, gas reacts with oxygen, nitrogen, carbon dioxide and other gases in coal seam to produce non-toxic and harmless liquid ester compound amino acid ester. Part of the gas in the coal seam is converted, thus reducing the gas content in the coal seam.
3. Chemical combination and transformation. Under the condition of high pressure, under the catalysis of catalyst, some components in the gas solvent directly combine with gas to generate new liquid ester compounds, so that part of the gas is converted into another new liquid ester compound, thus reducing the content of coalbed methane. Because the chemical reaction equation involves the composition of gas solvent, we won't tell you.
4. Partition function. The compounds produced by catalytic and chemical conversion are liquid ester compounds. These compounds are mixed with injection to improve the viscosity of injection. These esters with a certain viscosity enter the tiny cracks and fissures in the coal body, which can block the passage of gas except water injection and form a protective circle around the coal mining face, thus ensuring the normal mining work of the coal mining face.
5. Permeate coal. The gas solvent itself contains water, so a lot of water should be added when injecting liquid, which objectively plays the role of injecting water into the coal seam to penetrate the coal body. It can reduce the amount of coal dust produced during mining, and plays an important role in improving the working environment and preventing coal dust explosion.
6, pressure relief outburst prevention. The above action greatly reduces the content and pressure of free gas in coal seam, fundamentally relieves the power source of gas outburst, and solves the problem of gas outburst well. At the same time, due to the decrease of gas pressure, the resistance of liquid injection decreases. Under the same water injection pressure, the infiltration radius of simple water injection is 3-5m, and no water injection is carried out outside the bottom of water injection drilling hole. However, the penetration radius of liquid injection can reach 6-8m, and the outburst prevention ability can reach 4-5m by injecting liquid 2-3m before the bottom of water injection drilling hole, which greatly improves the outburst prevention ability.
Gas solvent is a green product, which meets the requirements of environmental protection. The raw materials used in the production of gas solvents are nontoxic and harmless, and the compounds produced by chemical transformation are also nontoxic and harmless substances, which have no adverse effects on coal quality and coal use and meet the requirements of environmental protection. On the contrary, it will produce a fragrance in use, which can alleviate the problems such as dry mouth, sore throat and fear of choking that often occur in workers' work, and is deeply welcomed by mining workers.
Using gas solvent to solve the gas problem in coal mine is simple and does not require a lot of investment. The original water injection system of coal mine can be used to inject gas solvent mixed with water into coal seam instead of clean water; Second, it takes a short time and has little impact on the mining face. Generally, it only takes 2.5-3.0 hours from the beginning of hole sealing to the end of liquid injection; Third, the cost is low. According to the quantity, price and design consumption of our products to users, the increased cost of using solvent-free tons of coal in general high marsh outburst mines is only 2.33 yuan; Fourth, the control effect is good, which can meet the control requirements of "Coal Mine Safety Regulations" on gas concentration and coal seam gas pressure in coal mining face; Fifth, the scope of adaptation is wide and there is no big risk. Top coal caving can be used once in all high gas mines and outburst dangerous mines. This product is a green product, which meets the requirements of environmental protection, and will not bring other adverse effects when used, so users can use it with confidence.
China Coal Science and Technology Gas Dissolving Agent Ren personally went to the State Bureau of Technical Supervision to formulate new enterprise standards.
The enterprise standard number of the Bureau of Quality and Technical Supervision of Gas Solubilizer is Q/4 105BA006-20 10, with the validity period of 20 1 April 31,and China Coal Technology: 0372-8629999.