Low-intensity and high-strength unclassified-tailing slurry filling system

Abstract

The invention discloses a low-intensity and high-strength unclassified-tailing slurry filling system comprising a tailing concentration device, a cement addition device, a density regulation water addition device, a slurry preparation device and a pipeline conveying device. The tailing concentration device, the cement addition device and the density regulation water addition device are each connected with the slurry preparation device. The bottom of the slurry preparation device is connected with the pipeline conveying device. The low-intensity and high-strength unclassified-tailing slurry filling system further comprises a modification low-density addition device and a modification enhancement adding and uniform mixing device. The modification low-density addition device is arranged between the slurry preparation device and the pipeline conveying device. The modification enhancement adding and uniform mixing device is arranged at the outlet end of the pipeline conveying device. The modification low-density addition device is a metering and adding pump. The modification enhancement adding and uniform mixing device comprises a metering and adding pump and a stirring machine. The low-intensity and high-strength unclassified-tailing slurry filling system is reasonable in design and high in safety, and the targets of low-density resistance increase conveying of filling slurry and defoaming enhancement filling are achieved.

Description

technical field [0001] The invention relates to the technical field of underground mining engineering, and more specifically relates to a low-density, high-strength full tailings slurry filling system. Background technique [0002] At present, a considerable number of mines in my country have been mined in deep shafts (greater than 800m). With the country's strong demand for mineral resources, a large number of mines will enter deep shaft mining in the future. For deep mining mines that use cemented filling mining, the filling line of the deep well filling pipeline is generally small, and the low filling line and high-pressure head transportation of the filling slurry often cause wear and tear on the pipeline near the bottom of the standpipe, causing pipe bursts and other threats to safe and stable production the elements of. In order to ensure safe and smooth filling, mechanical pressure adjustment methods such as increasing the length of the pipeline, setting up resistanc...

AI Technical Summary

Problems solved by technology

Traditional mechanical pressure regulation mainly uses mechanical components to increase pipeline resistance or release pressure, which requires increased engineering and material consumption. Setting up a pressure relief pool usually requires re-stirring, which increases equipment and energy consumption

At the same time, the mechanical pressure regulation method is more of a partial pressure regulation, which cannot achieve the effect of reducing the pressure of the entire pipeline.

Still can't effectively solve the problem of high pressure head transportation in deep wells

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