Material controlling and feeding system

Abstract

The invention discloses a material controlling and feeding system, and belongs to the technical field of feeding equipment. The system comprises a hopper, a stirring barrel and a control unit, a discharging port is formed in the bottom of the hopper, a discharging cavity is formed below the discharging port, the port surface of the discharging port is smaller than the maximum horizontal section ofthe discharging cavity, an impeller driven through a motor is arranged in the discharging cavity, the impeller is used for blocking the discharging cavity, the impeller comprises a wheel shaft transversely penetrating the discharging cavity, a plurality of blades uniformly surrounding the wheel shaft and two blocking pieces arranged at the two ends of the blades, the cylindrical space between thetwo blocking pieces is divided into a plurality of sector grids, the number of blades is at least 6, the stirring barrel is provided with a weighing sensor, and the weighing sensor, the motor and a stirring device of the stirring barrel are connected with the control unit. The material controlling and feeding system has the advantages that the structure is simple, the use is convenient, the automatic control of the feeding process can be realized by cooperating with an appropriate program, the feeding accuracy is further improved, the labor is remarkably saved, and the working efficiency is improved.

Description

technical field [0001] The invention relates to a material feeding control system, which belongs to the technical field of feeding equipment. Background technique [0002] The construction of prestressed pipelines has high requirements for grout, and the grouting material should have the characteristics of low water-binder ratio, high fluidity, and zero bleeding rate. However, most of the batching process in the prior art is manual addition of cement, the accuracy of feeding is not easy to control, human interference factors are large, and the water-cement ratio control is not accurate, making the water-cement ratio too large or too small. If the water-to-cement ratio is too small, the slurry will be too thick and the fluidity will be poor, which is not conducive to grouting. At this time, people often add water manually, which will lead to excessive bleeding rate and form a corrosion environment for steel strands in the tunnel. [0003] It can be seen that the precise cont...

AI Technical Summary

Problems solved by technology

However, most of the batching process in the prior art is manually adding cement, the feeding accuracy is not easy to control, human interference factors are large, and the water-cement ratio control is not accurate, making the water-cement ratio too large or too small

If the water-to-cement ratio is too small, the slurry will be too thick and the fluidity will be poor, which is not conducive to grouting. At this time, people often add water manually, which will cause excessive bleeding rate and form an environment where the steel strands are corroded in the tunnel.

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