Device and method for stacking and preparing gravel soil material

Abstract

The invention discloses a device and method for stacking and preparing a gravel soil material. The device comprises a door type material stacking machine, a material discharging rubber belt machine and a material feeding rubber belt machine, wherein the material discharging rubber belt machine and the material feeding rubber belt machine are matched with the door type material stacking machine; the discharging rubber belt machine and the feeding rubber belt mechanism form a continuous conveying system of the gravel soil material; the discharging rubber belt machine is an rubber belt machine with a discharging trolley, and a telescopic hopper is connected below the discharging trolley. According to the device and method for stacking and preparing the gravel soil material, operation is simple, so that the soil material can be uniformly stacked, the disturbance to the soil material can be reduced, and dam soil material filling can be continuously supplied in a large scale.

Description

technical field [0001] The invention relates to a dam gravel earth material preparation device and a process. The invention belongs to the technical field of modification and processing of anti-seepage materials for gravel soil core walls. Background technique [0002] The gravel soil core rockfill dam is a typical local material dam, and it is one of the dam types widely used in various countries in the world, and it occupies a large proportion in 300m high dams. [0003] The definition of gravel soil in "Code for Investigation of Natural Building Materials in Hydropower and Water Conservancy Projects" (DL / T 5388-2007) and "Code for Design of Roller-Compacted Earth-rock Dams" (DL / T 5395-2007) is: Gravel soil refers to the particle size The mass of particles larger than 5mm accounts for 20% to 60% of the total mass of wide-graded gravel soil. Generally speaking, the more coarse-grained materials in the soil, it is beneficial to obtain higher mechanical properties such as d...

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Problems solved by technology

[0008] (1) Mechanical flat laying and stockpiling lead to repeated rolling of gravel soil materials before feeding, and it is difficult to accurately control the mechanical performance indicators of soil materials; moreover, fuel consumption of various vehicles, exhaust emissions, and road construction in the site will increase soil Material processing production cost

[0009] (2) The belt conveyor can directly put the material into the warehouse to avoid the disturbance of the gravel soil by mechanical equipment, but the unloading height of the belt conveyor is generally fixed and the height is relatively large, which is easy to cause wide-graded gravel soil to be generated in the stockpile Segregation; and the control of the tape machine is complicated when the material is alternately prepared between multiple silos

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