SU950919A1 - Composition for weakening shale soil - Google Patents

Description

(54) SOLUTION TO REDUCE SLEETS

BREEDS

The invention relates to mining, in particular to chemical means of destruction (weakening) of shale rocks, and can be used for processing rocks with a strength factor of f 10-19 on the scale of the Konov horse. Aqueous solutions for the treatment of rocks are known that contain such inorganic reagents as chlorine aluminum, soda, ferric chloride, sodium chloride ij. However, this solution lowers the strength of shale slightly, the destruction of the rock is ineffective, as a result of which the rate of penetration is low. According to the experimental data, the closest technical solution to the proposed for the achieved effect of 1FI in shale rock treatment is a solution for weakening shale rocks consisting of water, wetting agent DB (surfactant is a mixture of polyethylene glycol ethers of ditert-butylphenols) and metallop chloride 2. However, this solution It is characterized by a low destruction efficiency of shale rock, which, ultimately, leads to a slight increase in the rate of penetration and a decrease in the wear and tear of the rock-breaking tool. The aim of the invention is to increase the effectiveness of rock attenuation. The goal is achieved by the fact that the solution additionally contains polyacrylamide and soda ash, and aluminum chloride is used as the metal chloride with the following ratio of ingredients to the weight%: Wettener DB0.50-1.00 Polyacrylamide 0.05-0.08 Soda calcinated 0.10- 0.20 Aluminum Chloride 0.04-0.06 Water Else Solution is prepared as follows. Into the vessel with the working mixer load the estimated amount of polyacryamide (in the form of an 8% gel, TU2-68), wetter DB (mixture of polyethylene glycol ethers dnt-butylphenop, GOST 23361-78), aluminum chloride (OST 6O1-ZOO-74) and normal water hardness in the amount of 5-7% of the final solution required for the preparation. Then, while working at the mixer, I add soda ash. The dissolution process lasts 5-7 minutes. The resulting solution is transferred to a dispenser tank of known construction, for example, a DSU-4 type (volume 60 l), and filled with the remaining amount of water. After that, the solution is ready for use. It is applied by irrigating shale rock in the zone of action of the executive body of the roadheader. The table presents the composition of the solutions and test results. As can be seen from the data in the table, the maximum decrease in the strength of shale rock takes place at 95 94 treatment with its solutions 4-7. The values obtained for these solutions are lower: neither the strength of the rock is higher than that of the solution of the prototype. An increase in the concentration of components in the upper limb of the claimed limit, as well as its decrease below the claimed lower limit, does not provide an effective decrease in strength (solutions 1-3, 8–10). The proposed solution is more effective than the known solutions. When processing shale rock with the proposed solution, a more significant decrease in strength by 33-35% is observed, and this will allow increasing the rate of shale penetration by the flcHHOBaTeu-SM combine by 25% and reducing the wear of the working tool by 35%. The expected economic effect from the use of the proposed solution is 350,000 r. in year.

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Equilibrium formula

A shale rock extractor containing water, a wetting agent, a DV mixture of half a century of d-reg-butvdphenol dichlorine glycol ethers and metal chlorine, differing from the fact that, in order to increase the effectiveness of rock formation, the solution additionally contains polyacrylamide and calcined soda. aluminum chloride is used in the following ratio of isridients,, in ";.%:

Wetting DB0.50-1.00

Polyacrylamnd 0.05-0.08

Soda Ash 0,1O-O, 2O

Aluminum chloride 0.04-, 06

WaterEverything

Sources of information taken into account in the examination

Sh. Rebschzder, P.A., et al. Hardness reducers in drilling. M.Wl., Publishing House of the Academy of Sciences of the USSR, 1944, p. 111.

2. Kusov N. F, et al. New ways and means of destroying rocks to coal. M., ZNIEIugol, 1978, p. 23 (prototype).

Claims (1)

The claims ¹ A solution for weakening shale rocks, containing water, a wetting agent, a DB mixture of polyethylene glycol ethers of di-tert-45 butylphenol and metal chloride, characterized in that, in order to increase the efficiency of weakening the rocks, the solution additionally contains polyacrylamide and soda ash, and metal chloride was used aluminum chloride in the following ratio of ingredients,. weight.%: Wetting agent DB Polyacrylamide Soda ash Aluminum chloride 0.50-1.00 0.05-0.08 0.10-0.20 0.04-0.06 Water Else