Precise preparation and filling system and method for coarse aggregate and tailing slurry

A technology of coarse aggregate and feeding system, which is applied in the field of precise preparation and filling system of coarse aggregate and tailings mortar, can solve the problems of difficult maintenance and inspection, inability to perform accurate measurement of filling system, poor measurement accuracy, etc., so as to solve the problem of safe mining. Problems, metering and buffer feeding process efficient and accurate, ensuring the effect of metering

Pending Publication Date: 2021-08-03
CHINA MINMETALS CHANGSHA MINING RES INST
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Problems solved by technology

However, the filling system has technical defects such as inability to perform accurate measurement, poor metering accuracy, and difficult maintenance and detection when the system is installed underground

Method used

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  • Precise preparation and filling system and method for coarse aggregate and tailing slurry

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Embodiment 1

[0051] The invention provides a filling method for preparing filling slurry, which is prepared by using the above-mentioned coarse aggregate and tailing mortar precision preparation filling system, and adopts a cycle process of static metering-period preparation, including the following steps:

[0052] S1, preparation of tailings mortar: adopt tailings mortar dense storage and metering system 10, after the tailings are settled by self-diluted flocculation and sedimentation feeding barrel 19, the tailings are transported to the paste storage thickener 11 after being concentrated, and the air compressor 17 is turned on before filling Slurry is carried out in the whole warehouse to ensure that the filling slurry in the warehouse is homogeneous and the concentration remains unchanged when sand is released. When filling is required, under the action of the slurry pump 18, the underflow is lifted through the underflow conveying pipeline 12 to the underflow metering buffer bucket 13 a...

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Abstract

The invention provides a precise preparation and filling system and method for coarse aggregate and tailing slurry. The precise preparation and filling system for the coarse aggregate and the tailing slurry comprises a tailing slurry dense storage and metering system, a coarse aggregate metering and feeding system, a cement metering and feeding system, a concentrated water metering and feeding system, a filling slurry preparation system and an automatic control system, wherein the filling slurry preparation system and the automatic control system are correspondingly connected with all the systems. According to the precise preparation and filling method for the coarse aggregate and the tailing slurry, a static metering-periodic preparation circulating process is adopted, so that each filling material can be accurately metered; the stirring time of a stirrer can be set at will, full stirring of the filling materials is guaranteed, and high-quality preparation of filling slurry is guaranteed; the technical defects of poor filling slurry preparation quality, poor slurry pipeline conveying reliability, high filling cost and the like caused by low filling material metering precision, large errors, large sand discharging concentration fluctuation of tailing thickening equipment and the like in the conventional coarse aggregate cemented filling process in the prior art are effectively overcome.

Description

technical field [0001] The invention relates to the technical field of mine solid waste filling, in particular to a system and method for precise preparation and filling of coarse aggregate and tailing mortar. Background technique [0002] The filling body produced by the coarse aggregate cemented filling system has high compressive strength, and is widely used in many underground mines with relatively broken ore rocks. [0003] However, at present, mines traditionally used for cementing and filling with coarse aggregate generally adopt a continuous preparation process. Coarse aggregate (such as crushed gravel, Gobi aggregates, filter press tailings, etc.) Viscosity, particle size composition, etc. make the quality and properties unstable, and there are problems such as material jams and sticky materials in unloading, metering, transportation, etc., resulting in large fluctuations in the concentration of filling slurry, and poor preparation quality. It affects the reliable ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21F15/00C04B28/00C04B18/12
CPCC04B18/12C04B28/00C04B2111/00724E21F15/00E21F15/005C04B22/002Y02W30/91
Inventor 郑伯坤尹旭岩张宝尹贤刚彭亮仵锋锋黄腾龙赖伟盛佳邓高岭
Owner CHINA MINMETALS CHANGSHA MINING RES INST
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