Full-tailing damming method of damming machine

Abstract

The invention provides a full-tailing damming method of a damming machine, and relates to the technical field of mine tailing pond damming processes. The method comprises the following steps: digging a dam slope drainage ditch; a leakage-proof layer is laid, and a film bag is placed on the leakage-proof layer; a construction platform is built, an ore pulp conveyor and a damming machine are driven to the construction platform and communicated with a pulp discharge pipe, the ore pulp conveyor and the damming machine, and a wake flow pulp discharge pipe of the damming machine is communicated with a material injection opening of the film bag; the damming machine advances on the construction platform in the damming direction for damming, the dry ore sand is used for damming after the damming machine rotates, the high-water-content fine ore mortar is injected into the film bag from the injection port, and the damming machine retreats to the heightened construction platform after damming is conducted to the specified length; and after the first layer is built, a second layer of film bags are laid on the original film bags, and the steps are repeated till the pre-built dam body reaches the designed height. By the adoption of the method, local materials can be used, full tailing sand is reasonably used for damming, the damming efficiency is improved, the damming construction period is shortened, the damming cost is reduced, and meanwhile zero emission of tailing slurry is achieved.

Description

technical field [0001] The invention relates to the technical field of mine tailings dam building technology, in particular to a method for building a dam with all tailings of a dam building machine. Background technique [0002] Tailings are mostly discharged in the tailings pond in the form of mud. The tailings pond covers a large area and has poor stability. Moreover, the tailings pond is rich in beneficiation chemicals. Water penetration into the ground will cause great pollution and is extremely safe. Therefore, some mines choose tailings to concentrate, dehydrate and dry discharge to reduce environmental pollution and secondary disasters. Regardless of dry discharge or wet discharge, tailings must be dammed and stockpiled. At present, in the process of damming at home and abroad, rolling earth and rock dams, tailings dry pile dams, cyclone dams, and mold bags are usually used. Dam building, masonry dam, etc. [0003] There are the following defects in the above-menti...

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Problems solved by technology

[0003] There are the following defects in the above-mentioned related technologies. In the process of building a dam, because a large amount of foreign materials need to be used to build the dam, it is necessary to use a large number of large-scale engineering machinery and a large amount of manual cooperation to complete the dam building. The dam building speed is slow and the cost is high. Although tailings cyclone damming can reduce part of the cost, since the hydrocyclone cyclone only adopts the tailings sand with high slurry concentration after cyclone and relatively large particles to build the dam, the rest of the slurry with high moisture content and fine particles needs to be discharged in The tailings are stored in the tailings pond, the tailings slurry is not fully utilized, and it is not suitable for dry discharge tailings stockpiling

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