Slurry fluidity indoor testing device and method for deep well paste filling

Abstract

The invention discloses a slurry fluidity indoor testing device and method for deep well paste filling. The device comprises a stirrer, a spiral conveyor, a receiving funnel, a buffer groove, a slurry circulating pipe, a slurry conveying pipe and a containing groove. The receiving funnel is positioned in the center in the buffer groove; the stirrer is communicated with the receiving hopper through the spiral conveyor; the buffer groove is communicated with the stirrer through a slurry circulating pipe; the containing groove is communicated with the receiving hopper through a slurry conveying pipe, the slurry conveying pipe is a transparent pipe body, and a valve is arranged at the feeding end of the slurry conveying pipe. The method comprises the following steps of preparing paste slurry with set mass concentration and lime-sand ratio, and feeding the paste slurry into a stirrer, wherein the slurry stirring process runs through the whole testing process, closing the valve, feeding slurry into the receiving funnel from the stirrer through the spiral conveyor, and enabling the slurry to overflow to the buffer groove and then returning to the stirrer through the slurry circulating pipe, when the valve is opened, enabling the slurry in the receiving funnel to flow into the slurry conveying pipe under the action of gravity, and observing the flowing state of the slurry in the pipe, after the slurry stops flowing, recording the slurry conveying distance, and calculating a slurry design multiple line.

Description

technical field [0001] The invention belongs to the technical field of metal ore tailings paste pipeline filling research, and in particular relates to a slurry fluidity indoor test device and method for deep well paste filling. Background technique [0002] According to statistics, more than 95% of energy, more than 80% of industrial raw materials and more than 70% of agricultural production raw materials come from mineral resources. It can be seen that the mining industry is the basis of many industrial chains. As of the end of 2018, China's domestic metal resources buried within 2,000 meters have identified about 32,600 tons of gold mines, about 300 million tons of copper mines, and about 196 billion tons of iron mines. In order to meet the needs of sustainable economic development, the development of metal mineral resources has to develop in the direction of deep well mining. [0003] Due to the high ground stress, high ground pressure, high ground temperature and other...

AI Technical Summary

Problems solved by technology

From the perspective of saving energy, designers hope that the slurry filled with deep well paste can flow to the stope in the pipeline by its own weight. Self-flow conveying cannot be implemented, and pumping equipment is required to provide auxiliary power to convey slurry at this time

On the contrary, if the filling line is too small, the wear of the filling pipe wall will be aggravated, resulting in an extremely unstable state of pipeline transportation, making the filling system unable to operate normally

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