Design Of Tunnel Kiln Control And Management System

As one of the most important burnt equipments in the tile industry, tunnel kiln already obtained more and more widespread application in sanitary ceramics, refractory material and other tile production process. The measuring and control system of tunnel kiln already developed from early instrument control to modern control system, such as PLC application, DCS system and fuzzy control technology application. However, the tunnel kiln process automation is relatively low compare to other countries. That restricts the improvement of the tile products quality, and result in huge energy consumption. Therefore, it will have an important theory and practical significance to improve our tunnel kiln process automation through PLC application while system management through DCS system.This article aims at one enterprise's tunnel kiln system with 156 meters long high-temperature tunnel kiln.After analyzing tunnel kiln process requirements and its automatic control system development status in domestic and abroad, designed a set of integrated automatic control system consists of on-site operating floor, display operating floor and information management. This control system adopts the stable and reliable PLC as controller; it formed a plant supervision platform through advanced network technology. It considered the tunnel kiln equipments safety, economic operation, also for the whole enterprise production control. To accelerate control through management, we combined control and management together; therefore, the production efficiency of the tunnel kiln was improved effectively. This control system designed according to fully integrated automatic engineering theory, the whole system applied the same configuration and program, the same data management and communication system to realize high integration among all levels. This system adopts modularized configuration, possess wholly openness in order to keep the system well expendability.The practical process performance indicates the tunnel kiln control system and the management system that we exploit is reasonable and with sufficient functions, that decreased human workload and energy consumption,and theory preparation for tunnel kiln process automatic control technology development in a certain extent.