A kind of separation device and separation method of gas, water and coal mixture

Abstract

The invention discloses a separation device and method for a mixture of gas, water and coal, comprising a separation bin, the separation bin is provided with a feed port, a pulverizer is installed on the feed port, and the separation bin A gas delivery pipe is installed on the upper end of the gas delivery pipe, and a gas collecting bottle is installed on the gas delivery pipe; a first screen is installed in the separation bin, and a first coal discharge pipe is installed on the first screen, and the first coal discharge pipe is installed on the first screen. The first row of coal pipes protrudes from the separation bin, and a vibrator is installed on the first screen, the vibrator is vertically arranged, and a sound wave transducer is installed at the lower end of the vibrator. A vibrating motor and an ultrasonic generator are installed outside the separation chamber, and the vibrating motor is connected with a vibrator. The separation device of the invention is simple in structure, safe and reliable, and is suitable for the separation of gas, water and coal mixtures.

Description

technical field [0001] The invention relates to the technical field of mining of coal and coalbed methane, in particular to a separation device and a separation method for a mixture of gas, water and coal. Background technique [0002] China's tectonic coal is widely developed and the tectonic coal coalbed methane resource is abundant. As a clean energy, coalbed methane has received extensive attention. Co-extraction of CBM and coal by using in-situ CBM wells on the ground can be an important means of tectonic CBM development. However, the coal particles and water produced during the drilling of CBM wells are in a state of mixture, which makes it difficult to effectively separate and collect gas, water and coal, and part of the coalbed methane contained in the coal particles has been desorbed into a free gas state, and part of it still exists in pulverized coal. The interior has not been desorbed, which increases the difficulty of separation. Although the existing multi-ph...

AI Technical Summary

Problems solved by technology

However, the separated substances are mainly large-density sand particles, light-density oil bodies and associated gas, while the separation of relatively low-density small-particle coal powder, water and coalbed methane is difficult to achieve

Although the widely used coal washing equipment can separate the coal-water mixture, it cannot separate the coalbed methane

The gas and coal-water separation devices and methods commonly used in coal mines are mainly for the separation of the injected gas and coal-water, and cannot solve the problem of separating the gas-water-coal mixture containing undesorbed coalbed methane.

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