SU1353888A1 - Method of sinking shafts - Google Patents

Abstract

The invention relates to the mining industry and can be used for the sinking of shafts by combines with rock destruction by an electro-impulse method. The goal is to increase the rate of penetration and reduce energy costs. Drying method: using a device that contains an excavator combine 1 with a rock-breaking body 2, such as an electropulse device, and a suction slurry pipe 3. In the upper part of the combine 1, a sucker rod 4 and a pump 5 with nozzles 6 are mounted, waste to the peripheral zone of the slab. The bottomhole zone is filled with flushing fluid 7. To clean up the destroyed rock, the pumpo.m 5 create the circulation of fluid 7 in the bottomhole zone of the trunk from top to bottom. On the surface of the liquid 7 place a layer of granules of solid material. Under the layer of granules create and maintain a protective layer of technical water. The density of the granules is less than the density of liquid 7, but greater than the density of process water. The flow of circulating fluid 7 is brought out below the layer of granules to the peripheral part of the bore hole. As the washing liquid 7, a hydrocarbon-based solution is used, which ensures high technical and economic performance of penetration due to its good thermomechanical and lubricating properties. 1 il. with (L OO SP OO OO 00 OO

Description

The invention relates to the mining industry and can be used for the sinking of shafts by combines with rock destruction by an electro-impulse method.

The purpose of the invention is to increase the rate of penetration and reduce energy consumption.

The drawing shows a stem-borne harvester for carrying out the proposed method, general view.

In the barrel there is a trunking combine 1 with a rock-breaking working body 2, for example, an electric pulse device, and with a suction slurry pipe 3. In the upper part of the combine, a stamping device 4 and a pump 5 are mounted. For example, centrifugal. Nozzles 6 are left from the pump to the peripheral zone of the barrel. The bottom wellbore zone is filled with a washing liquid 7 — a hydrocarbon-based solution, for example, a structured lime-bitumen solution with a specific electrical resistance of 4.5-10 Ohm-m. The density of the solution should be greater than the density of process water, for example, equal to 1.1–40 kg / m. A layer of granules 8, for example a layer of polystyrene powder, is placed on the surface of the solution. The density of the granule layer should be greater than the density of technical water, but less than the density of solution 7, for example, 1.05-10 kg / m. Above the layer of granules create and maintain a protective layer of industrial water 9 with a density of 10 kg / m.

In this system, both mechanical and electrical destruction of rocks, for example, electropulse, can be carried out.

The method of penetrating the shaft is carried out as follows.

The pump 5 is turned on and the flushing fluid is circulated up and down in the wellbore zone of the barrel, scooped down to clean the broken rock. At the same time, since the ends of the nozzles 6 are brought to the peripheral bottom zone, and the suction slurry pipe 3 is located at the bottom center, the closing branch of the flushing fluid passes over the surface of the bottom, flushing and directs the rock destroyed by the working body 2 to the suction slurry pipe 3. In addition, the flushing

the liquid in the layer adjacent to the granules is excluded from circulation, which contributes to the preservation of its structure and ensures the stability of the interface between the layers — the granules and the washing liquid. Solution

on a hydrocarbon basis, it provides high technical and economic indicators of shafts penetration due to its good thermomechanical and lubricating properties, high heat resistance, low filtration, neutrality with respect to mountain

breeds, etc., and the negative properties of the solution are not manifested due to the fact that the protective layer of process water virtually eliminates the penetration of volatile components of the washing liquid (fire-hazardous and unpleasant by smell) into the cavity of the barrel, where the barrel borer 1 and the the staff. A layer of granules prevents mixing of the layers of process water and the wash solution.

Claims (1)

Invention Formula The method of drilling shafts, including the destruction of rock and the circulation of flushing fluid in the bottomhole zone up and back, from top to bottom, for cleaning the broken rock, characterized in that, in order to increase the rate of penetration and reduce energy costs, as flushing fluid a hydrocarbon-based solution is used, a layer of granules of solid material is stirred on the surface of the washing liquid, and a protective layer of process water is created and maintained above the layer of granules, while the density of the granules is less than the density of the washing liquid, but greater than the density of technical water, and the circulation flow of the washing liquid liquids from the top to the bottom are withdrawn below the granule layer to the peripheral part of the barrel bottom.