Automatic proportioning device for mining emulsion

Abstract

The invention discloses an automatic proportioning device for a mining emulsion, relating to mining equipment. According to the invention, a high-pressure water mesh in an underground coal mine is used as a power, an impeller-type hydraulic motor is driven to work by high-pressure water, and a hydraulic pump is driven to work by the impeller-type hydraulic motor via a shaft coupler; and emulsified oil from the oil outlet of the hydraulic pump is joined with the high-pressure water from the water outlet of the impeller-type hydraulic motor in a three-way tube joint, so as to realize proportioning for the emulsion. The flow of the emulsified oil is controlled via an overflow valve, a throttle valve and a pressure gauge, thus realizing random adjustment for the proportioning concentration of the emulsion. The adjustment range of the proportioning concentration of the emulsion can achieve 1.5%-10%; and the water inflow of the impeller-type hydraulic motor is controlled by virtue of a two-position four-way electromagnetic directional valve, and the two-position four-way electromagnetic directional valve can be randomly accessed to a pump station control system, thus realizing integrated control.

Description

technical field [0001] The invention relates to a mine equipment, in particular to an automatic proportioning device for a working medium emulsion of a hydraulic support for coal mine underground support. Background technique [0002] With the continuous improvement of automation of fully mechanized mining equipment in coal mines, a large number of large-scale hydraulic support equipment, such as hydraulic props and single hydraulic supports, are used in coal mining faces. The supporting equipment works by using high-pressure emulsion as the driving medium. The proportioning concentration of the emulsion directly affects the support lifting effect of the support equipment, and is directly related to the safety of downhole production. [0003] At present, the proportioning of the emulsion in the coal mining face is mostly done manually, and the proportioning is carried out according to the experience of the operator, and then the concentration of the emulsion is measured wit...

AI Technical Summary

Problems solved by technology

If the ratio is unreasonable, it is necessary to re-proportion until a reasonable concentration is reached, which is very cumbersome

[0004] In recent years, some siphon-type emulsion automatic proportioning devices have appeared in the market, but their working principle is too simple, and it cannot realize a wide range of adjustments to the emulsion proportioning concentration, and it cannot be connected to the automatic control system for integrated control. The unit is also in manual control mode

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