Automatic Control System for Sinter Production Feeding
Sintering is an important way to use iron ore fines in iron and steel plant. It is a process of agglomerating fine iron ore into hard, porous lumps for use as blast-furnace burden. The sinter is composed of different materials (e.g., ore fines, coke breeze, slag, and limestone), which are mixed and blended in certain proportions and then charged to the sinter machine. The composition of the sinter and its thermal quality are determined by the proper mixture of the above materials. Doing this manually is labor intensive and time consuming, and often results in inconsistent sinter due to human error. To ensure a consistent and quality product, an automated control system is needed to ensure accurate and repeatable ‘thermal quality’ of sinter.
This paper describes an automatic control system for sinter production feeding. The system controls the amount of material delivered to the sinter machine by automatically measuring and adjusting the proportions of each material in the feed. The system is composed of two parts, the data acquisition unit and the control unit. The data acquisition unit acquires data from various instruments such as scales, flowmeters, temperature sensors, etc. for measuring the amount of feed materials used. This data is then sent to the control unit which in turn processes the data and controls the output of the materials.
The control unit processes the data from the data acquisition unit to determine the sinter’s thermal quality. It then controls the sinter’s feed rate according to the preset thermal quality. To ensure precise control, the control unit can be set up to work with precise control parameters such as target temperature, time-varying feed rate and mass of each material. It can also be programmed to work in conjunction with other gadgets such as pneumatic valves, conveyor belts and robots.
In conclusion, a sinter production feeding automatic control system can effectively automate the tedious and repetitive tasks associated with sinter production. It can provide accurate, repeatable, and reliable control with precise control parameters to ensure the quality of sinter product. As a result, the production efficiency and quality of sinter product can be greatly improved.
