Cement on-line metering device

Abstract

The invention relates to a metering device in a concrete blending plant, particularly a cement on-line metering device. The device comprises a metering hopper underframe and a metering hopper mounted at the upper part of the metering hopper underframe and is characterized in that a screw conveyer hanger is arranged at the side of the upper part of the metering hopper underframe; a pulling weighingsensor is arranged under the screw conveyer hanger; the feed end of the screw conveyer is mounted in the middle of the metering hopper underframe and the discharge end of the screw conveyer is connected under the pulling weighing sensor; a star discharging valve is arranged between the feed end of the screw conveyer and the discharge hole under the metering hopper; at least three pressure weighing sensors are symmetrically disposed on the top of the metering hopper underframe; the metering hopper is fixed on the pressure weighing sensor. The invention makes the proportion of the cement in themixing material accurate by two time weighing and metering, thus better meeting the production requirement.

Description

Cement online metering device technical field The invention relates to a metering device in concrete mixing equipment, in particular to an on-line cement metering device. Background technique With the development of society, people's demand for roads continues to increase, which requires higher and higher requirements for concrete mixing equipment. The accuracy of cement measurement directly affects the proportion of cement in the mixture. When measuring, the cement in the cement measuring hopper is measured by three pressure weighing sensors, and then sent to the mixing pot through the discharge rotary valve, so as to achieve mixing of cement, sand and other stones; this structure weighs and measures the cement At the same time, the upper interface is feeding and the lower is discharging, which makes the accuracy of cement weighing and measurement insufficient. It directly affects the percentage content of cement in the mixture. Contents of the invention The purpose...

AI Technical Summary

Problems solved by technology

When measuring, the cement in the cement measuring hopper is measured by three pressure weighing sensors, and then sent to the mixing pot through the discharge rotary valve, so as to achieve mixing of cement, sand and other stones; this structure weighs and measures the cement At the same time, the upper interface is feeding and the lower is unloading, which makes the accuracy of cement weighing measurement insufficient.

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