A fully automatic control system and control method for a wastewater drying system

Abstract

The invention discloses a full-automatic control system and method for a wastewater drying system. The automatic control system comprises a main control module, a data processing module, a subsystem control module, an alarm module, a state monitoring module and an automatic cleaning module; wherein the waste water drying system is fully automatically controlled through mutual connection of the modules, so that operation of the system is comprehensively monitored and controlled; automatic operation of the system is achieved through a control method, so that stability of the system is guaranteed. Automatic switching and automatic operation of operation modes are achieved by presetting a starting mode, a preheating mode, a dry grinding mode, a water spraying mode, a slurry spraying mode and ashutdown mode according to the system operation working condition. Full-automatic control over the wastewater drying system is achieved, accurate control over all parameters is achieved, system diagnosis can be automatically conducted to switch the system operation modes, the system operation stability is improved, and the participation degree of operation personnel is reduced.

Description

technical field [0001] The invention relates to the technical field of wet desulfurization, in particular to a fully automatic control system and control method of a waste water drying system. Background technique [0002] In the desulfurization wastewater zero discharge system, the drying process of the wastewater drying system is the result of the interaction of various parameters, and its control process and methods are not fully mature. For example, the bed temperature of the drying bed has a direct impact on the stable operation of the drying bed system. If the temperature of the drying bed is too high, it will affect the safe and stable operation of the rear-end electrostatic precipitator. If the temperature is too low, it will easily cause the operating condition of the drying bed. Deterioration or even collapse of bed condition; [0003] The wastewater drying system needs to switch the operation mode many times during the operation process. The control method of the...

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Problems solved by technology

[0002] In the desulfurization wastewater zero discharge system, the drying process of the wastewater drying system is the result of the interaction of various parameters, and its control process and methods are not fully mature. For example, the bed temperature of the drying bed has a direct impact on the stable operation of the drying bed system. If the temperature of the drying bed is too high, it will affect the safe and stable operation of the rear-end electrostatic precipitator. If the temperature is too low, it will easily cause the operating condition of the drying bed. Deterioration or even collapse of bed condition;

[0003] The wastewater drying system needs to switch the operation mode many times during the operation process. The control method of the existing wastewater drying system adopts manual switching of each operation mode. The abnormal operation status of the drying bed can only be monitored through strengthening monitoring, and the operation process cannot be realized Fully automatic control has caused a big obstacle to the safe and stable operation of the wastewater drying system

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