Automatic metering and feeding device of lightweight aggregate concrete and preparation method

Abstract

The invention discloses an automatic metering and feeding device of lightweight aggregate concrete and a preparation method. According to the automatic metering and feeding device of the lightweight aggregate concrete, a controller controls a discharging door A to be opened, materials are unloaded from a material collecting bin to a metering hopper, each pressure sensor is used for metering, whenthe discharging door A is opened to a baffle contact and touches a travel switch, the travel switch sends a signal to the controller, and the controller controls the discharging door A to be fixed ina completely opened state; when each pressure sensor meters the required weight, signals are output by the pressure sensors to the controller, and the discharging door A is controlled to be closed; the controller further controls a discharging door B to be closed and opened; and the controller further controls a walking motor and a lifting winch motor of an electric hoist to work so that the electric hoist can move left and right, and a lifting hook can be lifted up and down. By using the automatic metering and feeding device of the lightweight aggregate concrete and the preparation method toprepare the lightweight aggregate concrete, a special stirring station for preparing the lightweight aggregate concrete through a special line does not need to be independently arranged, and other concrete can be continuously produced without the residual lightweight aggregate concrete of the stirring station repeatedly being cleared and flushed away, so that the production efficiency and the equipment utilization rate are greatly improved, and the production cost is reduced.

Description

technical field [0001] The invention relates to an automatic metering and feeding device for lightweight aggregate concrete and a preparation method using the automatic metering and feeding device. Background technique [0002] Lightweight aggregate is an aggregate used for the purpose of reducing the quality of concrete and improving the thermal effect. The dry apparent density of lightweight aggregate concrete is not more than 1950kg / m 3 , has the characteristics of light weight, moderate strength, heat preservation and fire resistance, and has good deformation performance, low elastic modulus, and is widely used. It is suitable for high-rise and long-span buildings and structures that need to reduce the weight of concrete. The existing lightweight aggregate concrete production process is to put the non-pre-wetted lightweight aggregate, sand, admixture and 1 / 2 mixing water into the mixer for 1 minute, then put in cement, admixture and remaining water and continue stirring...

AI Technical Summary

Problems solved by technology

On the one hand, this will bring production pressure to the production department and other production lines, and even lead to untimely production and supply, which will eventually affect the settlement due to the contradiction between supply and demand. In addition, due to the dedicated line, ordinary concrete cannot be produced even when the production line is not working, which greatly reduces equipment utilization, greatly increasing the cost of producing lightweight aggregate concrete

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