Continuous mixing system for preparing impervious soil and control method

Abstract

The invention provides a continuous mixing system for preparing impervious soil. A collecting and distributing belt conveyor is arranged under a clay hopper and a gravel hopper, and is connected with a measuring hopper, a continuous mixer is arranged under the measuring hopper, a hoisting discharge belt conveyor is arranged under the discharge port of the continuous mixer, and is connected with a discharge hopper, and a water supply device is further arranged on the continuous mixer. The continuous mixing system can realize control functions of automatic distribution, automatic measurement and water addition, continuous mixing, automatic or manual discharging and loading and the like with the methods of quantitative feeding, measured conveying and forced mixing. Compared with a traditional mixing method for preparing the impervious soil, the cost for equipment and site in the invention is saved by 50%, and the efficiency is 150% of that of the traditional mixing method.

Description

technical field [0001] The invention relates to the construction field of water conservancy projects, in particular to a continuous stirring anti-seepage soil material mixing preparation system and a control method. Background technique [0002] According to domestic and foreign data, there are currently five main methods for mixing anti-seepage soil materials in the core wall of earth-rock dams: [0003] 1. The vertical mining method of flat paving in the stockyard; evenly spread a layer of gravel on the excavation surface of each layer of the stockyard, and the thickness of the paving depends on the mix ratio of the admixture and the excavation height. This method has high requirements on the topographic and geological conditions of the soil stockyard where the project is located and the mining intensity of the stockyard. [0004] 2. Laying and vertical mining method of blending field; applied in many domestic projects, the construction process is simple, the construction...

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Problems solved by technology

[0004] 2. The vertical mining method of flat laying in the blending field; applied in many domestic projects, the construction process is simple, the construction equipment is single and flexible in scheduling, and the quality control is good, but the construction requires a large blending field

[0005] 3. Stacking and blending method on the filling surface: stack the two materials alternately on the filling surface, and use a bulldozer to push the materials and mix them. This method is not easy to ensure the mixing quality and affects the construction strength of the filling.

Control the opening of the hopper gates of different stockpiles according to the required mixing ratio, so that various materials are unloaded on the belt conveyor for preliminary blending. The blending process of this method is relatively complicated and the quality is difficult to control.

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