On-line monitoring and control method of fault alarm system for aluminum electrolysis crane silo material level

Abstract

Relating to the field of aluminum electrolysis equipment, the invention discloses a control method for an aluminum electrolysis crown block stock bin material level online monitoring and fault alarm system. The method consist of: judging the stock bin charging and motion state, if no charging behavior occur and the stock bin is at a stationary state, letting an MCU module communicate with a slot control machine to obtain the information that whether an aluminum electrolysis cell needs charging; if the aluminum electrolysis cell needs charging at the moment, carrying out charging and calculating the charging speed; and if the charging speed is normal, the stock bin is fault-free, if the charging speed is too slow, blocking can occur to the stock bin or fault can occur to the equipment, starting an audible and visual alarm. The method provided by the invention utilizes a weighing sensor to collect the stock bin quality data and calculates the raw material charging speed, then judges whether a discharge port is blocked, and gives an audible and visual alarm and requires overhauling. The method provided by the invention can achieve real-time online monitoring and control of the stock bin material level, at the same time detects stock bin blocking information in the first time so as to avoid blocking worsening. According to the invention, the structure and operation steps are simple, thus being easy to implement.

Description

technical field [0001] The invention relates to the field of aluminum electrolysis equipment, in particular to a control method for on-line monitoring of the material level of an aluminum electrolysis crane silo and a fault alarm system. Background technique [0002] In the field of aluminum electrolysis, the addition of raw materials for aluminum electrolysis is generally to first transport the raw materials in the storage tank of the material tower to the electrolytic cell of the electrolytic workshop through dense phase or super dense phase conveying pipelines; , auxiliary materials and supplementary materials, this part of the materials will be transported to the silo of the electrolytic crane by a separate dense phase or super dense phase pipeline, and then the crane will add the covering material to the electrolytic cell. The silo generally has a material inlet and a material outlet. The raw material enters the silo through the inlet of the pipeline. When feeding, the ...

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Problems solved by technology

[0003] Crane feeding and material tower storage tank direct feeding, the two aluminum electrolysis raw materials are the same, the raw materials mainly include: alumina, fluoride salt, chloride salt, etc., the main difference between the two is the temperature, the general temperature of the crane feeding is higher Low, the feed liquid is easy to solidify into particles, which will block the discharge port and affect the discharge of the silo

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