The Design Of Control System For Mixing Clarifier

China is a coal-based energy consumption of large countries,the large total amount of energy resources,but the per capita possession of less,The demand for energy and the international restrictions on greenhouse gas emissions,forcing us to find clean and efficient new energy.Due to geographical,technical and ecological protection constraints,some new energy can not fundamentally change the status quo of China's energy shortage,China's nuclear use of small proportion of nuclear power technology is mature,uranium and other nuclear resources are rich,and nuclear power generation pollution,no greenhouse gases,to meet China's energy needs.Using the principle of solvent extraction,the design of 16-stage extraction,8-level extraction of laboratory mixing and clarification tank system,through which the establishment of reliable technology of small batch uranium separation process for uranium-driven reactor fuel extraction required to lay the foundation,Scientific mixing of clarified tank structures and solvents as well as reasonable and accurate flow rates and mixing rates are key to the extraction of high purity uranium.The hybrid clear slot control system uses a distributed structure,as long as the configuration of the king of the host computer to operate,you can manage the entire system components,control,it can also run the system data storage,print to To facilitate the staff to analyze the experimental data,data read,the command issued and other remote control functions are achieved through the Ethernet transport layer;The use of serial server to achieve the scene of different devices and the transmission layer and the communication layer,is the transmission layer and the connection layer of the field,The whole system is divided into flow control part and stirring motor speed control part,Constant flow pump,flow feedback,the host computer composed of flow control system,PLC acquisition flowmeter analog and free port communication way feedback flow value,the realization of the core idea of control PID control.The host computer,the stirring motor and its controller are composed of the stirring speed control system,the stirring motor controller uses the MODBUS protocol communication,and its control core idea is PID and PWM wave control.After the system was delivered to a research institute in Shanghai,Simple training for users,the operator can quickly grasp the use of equipment,and the entire process have a full understanding by a simple training?The precise flow rate and the stirring speed control of the system have been highly evaluated by the users;Data storage,query,print function also meet the experimental data after finishing,analysis requirements.in the system has been used for 3 years,there is no problem,we can see the stability of the system is very good.