A process automatic control method for sludge composting rapid aerobic fermentation process equipment

Abstract

The invention provides process equipment for composting and rapid aerobic fermentation of sludge and an automatic control scheme for a composting and rapid aerobic fermentation process, belonging to the technical field of composting and aerobic fermentation of sludge. The process equipment and automatic control scheme provide optimal initial process conditions for microbial propagation in composting and aerobic fermentation of sludge, enable composting and aerobic fermentation of sludge to rapidly enter a high-temperature fermentation period, accelerate the processes of fermentation and decomposition, shorten a fermentation period, reduce cost and exert beneficial effect on reduction, harmless treatment and stabilization of sludge. The process equipment comprises a solar photovoltaic power generation system, fermentation tanks with in-ground insulation and heating functions, a gas collecting cover having aeration and heating functions, used for collecting water vapor and stink produced in the process of fermentation and capable of moving up and down, a biological deodorizing system, an air supply and heating system for a workshop in winter, a travelling crane-like manipulator-operated material distribution machine, a composting heap turner, a data acquisition trolley, displace trolleys, a boiler system and an automatic control system for batching of raw and accessory materials and for process flow.

Description

technical field [0001] The invention relates to the technical field of aerobic fermentation of sludge composting, in particular to an automatic process control method for rapid aerobic fermentation process equipment of sludge composting. Background technique [0002] With the rapid development of my country's economic construction and the acceleration of urbanization, the discharge of urban sewage (including industrial sewage and domestic sewage) has increased sharply, and the sludge generated during sewage treatment has also increased significantly. According to relevant statistics, as of the end of 2013, the annual production of wet sludge with a moisture content of 80% has exceeded 38 million tons, and it is expected that the annual output of sludge will exceed 60 million tons by 2020-2025. Although the urban sewage has been treated, if such a huge amount of sludge is not properly treated, it will be discharged into nature at will, which will cause serious secondary pollu...

AI Technical Summary

Problems solved by technology

[0010] As far as the current existing technology is concerned, the shifting car used for the shifting of the turning machine between the fermentation tanks is manually controlled, and the track installed on the shifting car and the track installed on the fermentation tank for the operation of the turning machine are observed with the naked eye. Whether the track is aligned, even if the limit switch is installed, it is roughly aligned, and manual fine-tuning is required to accurately align the track on the fermentation tank with the track of the shifting car, and the automatic shifting control of the turning machine cannot be realized during the fermentation process. Reduce the operating efficiency of the turning machine and increase labor costs

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