A kind of mine goaf bundle tube water filter and dust filter and its use method

Abstract

The invention discloses a mine goaf pipe bundle water filtering dust filter and a use method thereof. The dust filter comprises a metal dual layer pipe, a flame retardant dust filter screen, compressed sponge, and a water-swelling rubber strip. The metal dual layer pipe comprises an outer pipe and an inner pipe. The surfaces of the outer pipe and the inner pipe are respectively provided with multiple outer pipe vents and multiple inner pipe vents. One side of the metal dual layer pipe is sealed, and the other side is provided with an air outlet pipeline, which is connected with the inner pipe.The use method comprises the following steps: (1) arranging a plurality of pipe bundles and the pipe bundle water filtering dust filter on a position close to an internal test point in a goaf; (2) connecting the pipe bundles to the air outlet pipeline of the pipe bundle water filtering dust filter, fixing the pipe bundles and the pipe bundle water filtering dust filter, and integrating the bottomends of multiple pipe bundles; and (3) detecting the state of the water-swelling rubber strip to judge whether water flows in the pipe bundle water filtering dust filter or not. The structure is simple, the dust filter is convenient to use, furthermore, in the test point, the air is filtered, the pipeline will not be obstructed, the air pump will not be damaged by water pumped from the goaf, andthe reliability of data of monitoring the pipe bundles is improved.

Description

Technical field: [0001] The invention belongs to the technical field of goaf bundle tube monitoring, and in particular relates to a mine goaf bundle tube water filter and dust filter and a use method thereof. Background technique: [0002] A considerable part of mine fires are caused by natural fires in goafs of coal mines. In severe cases, gas explosions can even be caused. Therefore, a certain amount of measuring points are generally set up in the goaf underground and beam tubes are laid to collect gas in the goaf, and through the gas analysis of the goaf, it is judged whether the goaf is on fire. In the gas samples collected in the goaf, water vapor and other solid particle impurities will affect the gas analysis. Therefore, water and dust filters are usually installed at the end of the bundle tube set at the measuring point. [0003] Nowadays, the laying of bundle pipes in gobs adopts the arrangement of single bundle pipes corresponding to the measuring points, and the ...

AI Technical Summary

Problems solved by technology

However, in mines with high water inflow, the goaf often collapses, causing the water filter and dust filter to fall into the stagnant water, causing water to enter the bundle tube, making it impossible to extract the gas from the measuring point, and even causing the gob to accumulate water pump out, damage the air pump

[0004] It can be seen that there are many defects in the water filter core in the laying of bundle pipes in mines with high water inflow, so it is necessary to propose a kind of water filter dust filter and its use in goafs of mine goafs to eliminate the water in high inflow mines. In the mine of water quantity, the influence of the water entering the water filter element on the monitoring work of the bundle tube

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