The Research Of Temperature Control System For Waste Tyre Comprehensive Treatment Equipment Based On Simulation Technology

Pyrolysis as one of the more thorough and highest value-added methods for handling waste tire has been extensively studied by experts and scholars in the domestic and foreign. However, some characters of the tire pyrolysis handling process such as non-steady-state, difficult to control and instability of pyrolysis products has not made it receive wide application. Among all unresolved issues, the control problem of pyrolysis temperature is one of the main factors affecting the cracking process. This paper gets the control information of the production site by building a real-time simulation for laboratory efficient and environmentally friendly waste tire pyrolysis system; through the establishment of a data connection between Matlab temperature control model with PID control algorithms and real-time control system to achieve the temperature control of pyrolysis process.Firstly, this article summarizes the research status of scrap tire pyrolysis mechanism and real-time simulation control technology, on the analysis of the production process systems for laboratory cracking production system, the temperature control system of cracking reaction kettle is highlighted in this paper. In against to the insufficient existing in the temperature control of cracking equipment, such as rely on the artificial field observations, data measured take a longer time lag and so on, a general framework of temperature control system for waste tire pyrolysis is designed in accordance with the concept of distributed control system. In clear the main task of the temperature control system at all levels, key technologies for the system construction, including the data collection methods, OPC data communication and temperature control algorithm for reaction kettle are studied. Among them, the reactor temperature control algorithm mainly uses a PID (Proportion Integration Differentiation) control algorithm. According to the fact that the temperature control of cracking reaction has big volume lag and dynamic feature, integral separation PID control algorithm and the anti-windup PID control algorithm are correspondingly introduced in this paper. After validating, two algorithms meet the corresponding control requirements respectively.In accordance with the design ideas of temperature control system framework, the temperature simulation control system of pyrolysis reactor is developed. Finally, through the parameters initial of simulation and control system, running the system, the output of charts of the simulation process and process curve of reactor temperature control show simulation control effect of the systemThe research in this paper provides a new approach to the design of control system for refining fuel from waste tire pyroiysis, and also provides a new ideal to improve the stability and security of temperature control for existing production system.