Automatic control system for clarification and evaporating process of sugar refinery

Abstract

The invention provides an automatic control system for a clarification and evaporating process of a sugar refinery. The automatic control system comprises six subsystems, namely a mixed juice heating and uniform-pumping automatic-control system, a neutralizing juice heating and uniform-pumping automatic-control system, a clear juice heating and uniform-pumping automatic-control system, waste steam and live steam pressure-reducing temperature-reducing automatic-control system, an I-V-effect evaporation tank syrup liquid level control and last-effect syrup brix control system and a production dispatching management system. The whole automatic control system structure is divided into four levels, namely a field instrument layer, a control station, an engineer station and an operator station, and an information management layer from bottom to top. The whole system forms the four-level structure through the six subsystems to automatically control the production process. According to the system, sugar enterprises can achieve the operating target of the production process, namely five stabilities, different levels of managers can master industrial site conditions any time and anywhere across the regions, and the fully-automatic control for the clarification and evaporating process of the sugar refinery and the cross-region real-time production management are realized.

Description

technical field [0001] The invention relates to an automatic control system for the sugar production process in a sugar factory, in particular to an automatic control system for the clarification and evaporation process in a sugar factory, which belongs to the field of automatic control of sugar production. Background technique [0002] A sugar factory is generally divided into three major workshops: pressing workshop, power workshop, and refining workshop. Among them, the clarification and evaporation sections are the core parts of the refining workshop, accounting for 2 / 3 of the entire workshop. They are not only the center of the thermal system of the sugar factory, but also It is the section with the largest energy consumption in the whole plant, with the most complex process and the most related factors. [0003] At present, the clarification and evaporation sections of domestic sugar factories are mostly manual operations. Due to the uneven operation technology level o...

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Problems solved by technology

[0005] In order to solve this series of problems, only the automatic control system can avoid the instability caused by manual operation.

However, most of the relevant automatic control systems currently on the market only automatically control a single parameter and part of the production process, and the effect is very limited.

Judging from related reports, the main focus is still on collecting data for computer analysis and prediction and monitoring of production conditions, rather than automatic control of the production process in the true sense.

In addition, the control parameters and data of the existing automatic control system for the production process are generally limited to the transmission within the wired LAN within the system, which is not conducive to the cross-regional real-time remote management of the production process. Research reports on the application of WIFI and other technologies to the automatic control system of clarification and evaporation processes

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