Continuous annealing process heat energy intelligent cycle matching process

Abstract

The invention belongs to the technical field of heat energy utilization, and particularly relates to a continuous annealing process heat energy intelligent cycle matching process. A continuous annealing process heat energy intelligent cycle matching system is adopted, under regulation and control of an intelligent controller, heat after high-temperature annealing is recycled and circularly matched to a process heat recycling area, and preheating of strip steel is completed. According to the process, a manner of an auxiliary heating area and the process heat recycling area is adopted to replace a manner of a preheating area and a medium-temperature area in traditional annealing; and the auxiliary heating area is only used for assisting in the initial state, the technology that a preheating area and the medium-temperature area are necessary in the traditional annealing technology and penetrate through the annealing technological process all the time is abandoned, the heat energy utilization rate is high, and the energy saving rate is increased to 30%-50% from the traditional energy saving rate lower than 20%.

Description

technical field [0001] The invention belongs to the technical field of thermal energy utilization, and in particular relates to a thermal energy intelligent cycle matching process of a continuous annealing process. Background technique [0002] The continuous annealing of cold-rolled strip steel (including stainless steel) is a key process to ensure the quality of strip steel, and the annealing furnace is the core equipment for continuous annealing, and it is also the necessary basic process equipment for the cold-rolled strip steel industry and field. In the past three years, the output of cold-rolled steel strip (including stainless steel) in my country has maintained a high level of about 80 million tons, and the market prospect of wide-band steel is broad. Carrying out "Research on Energy-saving Technology of Continuous Annealing of Cold-rolled Strip Steel" is an important way for iron and steel enterprises to save energy, reduce consumption, reduce emissions, reduce cos...

AI Technical Summary

Problems solved by technology

In the continuous annealing production process of cold-rolled strip steel, there are many waste heat dissipation points and different grades. The main technical means for continuous annealing of cold-rolled strip steel to save energy is furnace insulation. In fact, there is no waste heat recovery and energy saving, and the overall energy saving rate of equipment is less than 20%. , the low effective heat utilization rate of the continuous annealing unit of cold-rolled strip steel has become a major technical problem and technical bottleneck in the production of "continuous annealing process of cold-rolled strip steel"

Images