Research And Application Of Excellent Cascade Control Technology In Coke Furnace's Heating System

The coke oven is the most complicated stove kiln in metallurgy industry. The heating course of the coke oven is intermittence of single combustion chamber but all combustion chambers are successive. The progress of calefaction is interfered with different kinds of factors. The coke oven is a typical great inertia, nonlinear and quick-vary complicated system. So there are graveness problems in coking plant industry all over the world, how to optimize the control of heating course, reduce the energy consumption of coking, guarantee the coke is even and steady and ripe, lengthen service life of coke oven, etc., remains one of the great difficult problems of the coking industry.This system based on the modern computer technology and information technology changes tradition industry and promotes the enterprise's engineering level. According to domestic situation of the development of heating automatically, combining with the coking craft characteristic, research and develop examining warm technology which suits for many types of coke oven, data merged and tread technology, multi-mode control technology, experts-system and intelligent control technology.Main research contents of the subject are as follows:The most suitable control strategy ----steady burnt time is controlled by the form which contains two feed-forwards, one feedback and one monitor. Furnace temperature control adopts bunches control, while establishing value according to random control is adopted in the suction control.Optimize control arithmetic study----according to the characteristic of the coke oven pre-control mainly and multi-control scheme are posed.Detection of many parameters and the data mergence technology ----using the computer system, develop and carry out five different kinds of techniques of temperature collects and data processing. What having representative is it combine to conclude the burnt be completed judgment, develop the on-line control system of the coke quantity according to the rising tube fire falls the temperature.Knot the coke model and the dynamic state control model----complete the heating system modle (provide the calories model) and burning system modle (divide the flue suction model).The control system and scheme implement----The control system adopts DCS or...