Resistance-increasing and pressure-relieving system for filling slurry pipeline transportation and using method thereof

Abstract

The invention discloses a resistance-increasing and pressure-relieving system for filling slurry pipeline transportation, comprising a filling vertical pipe, a horizontal pipe located in an underground filling tunnel, a transfer pipe connecting the filling vertical pipe and the horizontal pipe, and a connecting pipe connected to the end of the horizontal pipe. The resistance increasing and pressure relief device, the horizontal distance between the resistance increasing pressure releasing device and the filling vertical pipe is 2-3m; the resistance increasing pressure releasing device comprises an energy dissipation reducing pipe connected with the end of the horizontal pipe, at least one resistance increasing ceramic composite pipe and a connection The first connecting pipe of the energy-dissipating reducing pipe and the resistance-increasing ceramic composite pipe. Through the above method, a drag-increasing and pressure-relieving system for filling slurry pipeline transportation, which can reduce the flow rate of slurry in the pipeline and can reduce the damage to the transportation pipeline, is provided. The system only needs to add a resistance increase and pressure relief device on the basis of the existing mine pipe network system, which is easy to install, and has an adjustable structure after installation, with strong adaptability; ceramic materials with good wear resistance are used for resistance increase and pressure relief. The main material of the device has low cost, long service life and high safety factor.

Description

technical field [0001] The invention relates to the technical field of mine filling and pipeline transportation of small filling doubling lines, in particular to a resistance increasing and pressure relief system for pipeline transportation of filling slurry and a method of using the same. Background technique [0002] Mine filling is a process of sealing the underground empty area by transporting the filling material and liquid mixture from the surface to the underground empty area through closed pipelines or open grooves, which is an extremely important step in the mining process. Mine filling is usually by drilling vertical and / or inclined holes from the surface to a certain level downhole, and then through horizontal pipes and downhole small wells or drill holes to each goaf, and setting backfill casings in the backfill holes, so that the formation of A filling pipe network. In the process of mine filling, the filling slurry flows into the goaf from the surface by its o...

AI Technical Summary

Problems solved by technology

However, installing a one-way valve in the delivery system requires high sealing performance, and the valve is easy to wear during use, resulting in a low safety factor.

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