[**Hebei Provincial State-owned Assets Supervision and Administration Commission State-owned Assets Supervision].
Huafeng Company of Hangang Iron and Steel Company of HBIS Group adheres to the working concept of "simple, pragmatic and effective", takes the ultimate energy efficiency as the goal, promotes the construction of "smart energy", taps the energy potential of the whole system, and realizes the efficient use of energy.
In November, the company was successfully selected as the second batch of "Double Carbon Best Practice Energy Efficiency Benchmarking Demonstration Plant" cultivation enterprises of China Iron and Steel Association.
Avoid peaks and valleys to achieve power generation efficiency.
Through the construction of an intelligent center, a high-end intelligent production line is built, and the energy utilization and medium flow direction of 3 major product segments and 10 production lines are controlled in real time, so as to open up the information 'context' in the energy field and achieve full coverage of energy monitoring. Li Guoshan, the second-level technical director of the company's production technology department, introduced at the extreme energy promotion meeting.
Through the establishment of a "smart center", the company further realizes the digital, integrated and intelligent management and control of energy efficiency utilization, promotes the deep integration of digital technology and the development of the energy industry, and releases the value potential of energy data elements. At the same time, it has effectively improved the level of digital and intelligent energy development, realized full utilization of energy, and promoted green, low-carbon and high-quality development.
Li Junsheng, technical director of the company's equipment engineering department, convened technical backbones to plan and implement the strategy of "avoiding peaks and valleys", and scientifically and rationally allocated gas volume. Based on the real-time updated data of the "gas flow map", combined with the actual production demand of gas cabinets, white ash kilns, LNG, etc., they carry out remote real-time supervision and historical trend review of gas. By consulting a large number of relevant production materials for detailed comparative analysis, we can give full play to the role of gas cabinets and improve the power generation difference between peak and valley. The daily valley section is rushed to the high counter, and the flat section and peak section are reduced to the low counter for power generation, and the gas consumption is dynamically adjusted in a timely manner, so as to maximize the utilization of resources and optimize the benefits of gas power generation.
It is necessary to adjust the amount of gas consumption in time, maintain dynamic balance, and make the best use of gas resources. In the production process, Li Junsheng and the technical backbone always keep an eye on the data of the "gas flow map" and repeatedly tell the operators to pay attention to it. According to the real-time trend data, the operator advances item by item according to the proposed plan to ensure systematic control of the gas flow direction.
Precise adjustment to promote energy saving and consumption reduction.
Recently, the innovative application of coke oven automatic heating control technology has realized the precise adjustment of coke oven heating gas flow rate and sub-flue suction power, and the solution of reducing gas consumption has achieved remarkable results. Through systematic statistics of coke oven indicators, real-time generation of the average temperature trend curve of the whole furnace and systematic control of gas consumption, saving 20,000 cubic meters of gas per day, and making the ultimate use of energy. "At the morning meeting on November 10, the report of the dispatch shift leader made everyone excited.
The company emancipates the mind, innovates technology, works efficiently and practically, vigorously improves the temperature stability of coke ovens, saves the gas flow rate for coke oven heating, improves coking production efficiency, maximizes the potential of energy conservation and emission reduction of coke ovens, and ensures that costs and efficiency are reduced.
As an important process of coking, coking oven gas is also a chemical resource and secondary energy, which has broad utilization value. We must ensure daily production and consumption at the source, save valuable coke oven gas for the subsequent process, and go all out to achieve maximum energy efficiency. Xu Baoxian, the technical director, organized the establishment of a technical research team and began to tackle the technical research of automatic heating control of coke ovens day and night.
After going deep into the production site and reading a large number of relevant materials, the research team broadened innovative ideas by "going out" and "learning from experience", and conducted in-depth analysis and optimization for the "difficulties" of the current coke oven heating gas flow rate and the precise adjustment of the suction of the sub-flue with science and technology.
Through many practices, they independently developed the control algorithm, adopted the automatic temperature measurement technology of the furnace top vertical fire channel, and combined manual and automatic temperature measurement to realize automatic comparison of temperature measurement data deviation to automatically compensate for temperature measurement data and give alarm information. Assist in manual correction of the accuracy of temperature measurement equipment, reduce the workload of system maintenance, greatly improve the accuracy, reliability and stability of system temperature measurement, and achieve accurate adjustment of coke oven heating gas flow and sub-flue suction.
After the implementation of this technology, the automatic correction of temperature measurement data is realized, the temperature measurement error is reduced, the furnace temperature fluctuation is prevented, the gas flow rate is saved, the production efficiency is improved, and the stability and reliability of the system are ensured. The daily gas volume is saved by 20,000 cubic meters, and the cost per ton of coke is reduced by 2$4.
*: Hegang Handan Steel Edition Author: Zhu Jiajian.
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