Stacking and discharging system for dry-discharged tailings of open-pit mine stope and stacking and discharging method thereof

Abstract

The invention provides a stacking and discharging system for dry-discharged tailings of an open-pit mine stope and a stacking and discharging method thereof, and relates to the technical field of open-pit mining. The stacking and discharging system involves a ground conveying device, a chute conveying device and a blocking dam. An open pit which is not closed is used as an internal dry-dischargedtailing pond, and the dry-discharged tailings are directly stacked and discharged inside the open pit which is not closed; the tailings completing a dry discharge process can be conveyed to the chuteconveying device through the ground conveying device, the chute conveying device gradually conveys the dry-discharged tailings to a pit bottom position through the self-weight of the dry-discharged tailings by using the inclined surfaces of the pit slope positions of steps of the open pit, the blocking dam is used for blocking the dry-discharged tailings conveyed to the pit bottom by the chute conveying device, and the dry-discharged tailings conveyed to the pit bottom are stacked, discharged and rolled, so that the technical problem that in the prior art, the storage capacity of the tailing pond is about to be used up, so that the dry-discharged tailings cannot be stacked is solved; and the land of the special tailing pond is not needed to be occupied any more, and the practicability is higher.

Description

technical field [0001] The invention relates to the technical field of open-pit mining, in particular to a stacking system and a stacking method for dry tailings in an open-pit stope. Background technique [0002] When the open-pit mine stope mining and the beneficiation production of the dressing plant have not yet ended, and the tailings storage capacity for stockpiling tailings is about to be exhausted, in order to extend the mine's production and service life, the mine must solve the problem of tailings stockpiling. [0003] In the prior art, in order to solve the problem of tailings stockpiling, dry tailings are used for dry discharge treatment. The tailings dry discharge process refers to the tailings slurry is concentrated by multi-stage swirl, and then processed by high-efficiency dehydration equipment to form Filter cakes with low water content, easy to precipitate and solidify, these filter cakes can be used as filling materials in gobs, raw materials for building ...

AI Technical Summary

Problems solved by technology

[0004] However, even after the tailings are dry-discharged, there are still many problems in the transportation and stacking of the dry-discharged tailings. For example, the use of vehicles to directly transport the treated dry-discharged tailings will increase the cost, and some of the tailings have no use value. Dry discharge of tailings will also occupy the tailings pool

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