Auxiliary verification device for hopper scale and implementation method thereof

Abstract

The invention relates to an auxiliary verification device for a hopper scale. The verification device is characterized in that: the verification device includes multiple weighing sensors used for bearing the weight of the entire device, and also includes a weighing platform horizontally disposed right below a hopper bin and capable of placing a weighing weight, the weighing sensors collect a weight signal through a sensor cable to a sensor gathering junction box, the sensor gathering junction box is connected to a weighing secondary meter through a weighing total cable, and the weight is displayed by the weighing secondary meter, and inspection of the hopper scale is achieved by increase and decrease of the weight of the weighing platform. The verification device enables the work efficiency to be improved, is also convenient to perform full-scale range verification check on a verification result, and runs in a steelmaking molten iron pretreatment workshop for many years, thus being obvious in effect.

Description

technical field [0001] The invention belongs to the field of automation technology such as feeding weighing control of raw and auxiliary materials and alloy materials in iron and steel production, and in particular relates to a novel auxiliary calibration device for hopper scales and a realization method thereof. Background technique [0002] A large number of various raw and auxiliary materials are used in steel production. With the continuous improvement of the quality requirements for molten steel, the weighing requirements for raw and auxiliary materials and alloy materials are also becoming increasingly strict. It is necessary to weigh accurately, and work reliably and stably. It is necessary to adapt to the relatively harsh on-site environment of the steel mill, because once the weighing fails, it is very likely to cause major batch quality problems in the product. Therefore, in addition to paying attention to the selection of the hopper scale equipment itself, daily m...

AI Technical Summary

Problems solved by technology

The traditional calibration method is to gradually add weights of known weight to the silo body. Although the static accuracy is good, it is limited to the specific conditions of the on-site silo, and it is often difficult to perform full-scale calibration; in addition, the traditional calibration site The operation is time-consuming and laborious, requiring a large number of personnel; the operation lacks standardization, and the precise calibration effect is not good

The subsequent development of a hydraulic calibration device with a standard weighing sensor has improved convenience, but the mechanical stability of the hydraulic device is insufficient, especially when the force is unstable at high loads, and there are occasional oil leakage problems, which makes it difficult to meet the high calibration requirements. Stability and high precision requirements

It can be seen that no matter what kind of verification method exists, it has obvious shortcomings, and it is difficult to meet the increasingly stringent high-standard production requirements, and needs to be improved.

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