System and method for controlling medium consistency disc grinder in a fine tuning way

Abstract

The invention provides a system and a method for controlling a medium consistency disc grinder in a fine tuning way. The system comprises a temperature monitoring module, an equipment operation monitoring module, a pulping quality control module, a current detection module, a displacement control module, a fine tuning servo control module and a cutter advance and retreat control module, wherein the pulping quality control module, the current detection module, the displacement control module, the fine tuning servo control module and the cutter advance and retreat control module are sequentiallyconnected; the output end of the temperature monitoring module is respectively connected with the temperature monitoring module and the cutter advance and retreat control module; and the output end of the cutter advance and retreat control module is respectively connected with a hydraulic device and an end surface transmission device of the medium consistency disc grinder externally. The method comprises the following steps: combining the fine tuning servo control module with the data of displacement control module and the current detection module for computing; controlling the action of thehydraulic device and the end surface transmission device according to a computing result by the cutter advance and retreat control module; and realizing the spacing adjustment of grinding sheet assemblies, wherein the temperature monitoring module monitors the temperature of a mainshaft bearing of the medium consistency disc grinder in the process. The invention realizes the automatic pulping control of the medium consistency disc grinder, reduces the manual operation, enhances the adjustment precision of the spacings of the grinding sheet assemblies and also improves the pulping quality and the pulping efficiency.

Description

technical field [0001] The invention relates to the technical field of disc refiners, in particular to a fine-tuning control system and method for medium-concentration disc refiners. Background technique [0002] The disc refiner is the main equipment for pulp beating in the paper industry. The main beating processes of the existing disc refiner include low-consistency beating, medium-consistency beating and high-consistency beating. Usually, the beating concentration of low-consistency beating is about 3-4%. The beating concentration of medium-concentration beating is between 6 and 15%, and the beating concentration of high-concentration beating is more than 20%. Due to the difference in slurry concentration, the flow characteristics of the slurry will change fundamentally, so the beating process control There are also different requirements for the control of disc mill equipment. [0003] At present, the traditional low-consistency beating process is still used more in pa...

AI Technical Summary

Problems solved by technology

However, the existing medium-consistency beating has not yet realized automatic control, and the control of its process and the control of the working state of the equipment are mainly completed by manual operation, especially the distance between the grinding discs on the disc mill, which can only be adjusted by manual operation. , which requires operators to have rich operating experience, and the paper industry is a large-scale production enterprise, relying only on manual operations often leads to unstable production, great fluctuations in product quality, and waste of electric energy. In serious cases , even normal production cannot be carried out

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