In recent years, high-energy-consuming special equipment such as boilers, heat-exchange pressure vessels, and elevators in China are characterized by a large number, rapid growth, and high energy consumption or conversion volume. At the national high energy-consuming special equipment energy-saving work-site meeting that ended on July 1st, the application demonstration of energy-saving technologies and the exchange of experience in energy-saving supervision by relevant companies and regulatory agencies revealed many innovative highlights. Practice has shown that carrying out energy-saving work on high-energy-consuming special equipment is not only an important aspect of the country's energy-saving and emission-reduction work, but also an effective way for enterprises to realize reduction of consumption, increase efficiency, and improve development quality.
It is reported that AQSIQ is about to announce two energy-saving technical specifications: "Boiler Energy-saving Technical Supervision Regulations" and "Industrial Boiler Energy Efficiency Test Methods". It puts forward specific energy-saving technical requirements for the boiler product design, manufacture, and installation process, and the boiler energy efficiency index. And operational management to make specifications.
Hangcao Group and Angang's project cooperation:
Technological Innovation Helps Energy Saving Go to the DCS control room of the sintering waste heat power plant of Anyang Iron and Steel Co., Ltd. The reporter saw dozens of technicians working intensively in front of their computers. The large screen in front shows the work of the sintering waste heat power generation system. Live.
"This set of sinter waste heat recovery power generation system has a very good energy saving effect. We made the first person to eat crabs," said Shi Meilun, Deputy General Manager of Angang Iron and Steel.
In 2007, it was learned that Ansteel wanted to use the waste heat power generation project. The sales staff of Hangzhou Boiler Group Co., Ltd. found the relevant person in charge of Ansteel to discuss cooperation matters. Hangguo Group is a professional enterprise that has long been dedicated to the development, design and manufacture of waste heat utilization equipment in the fields of electric power, metallurgy, chemical engineering, building materials, petrochemicals, etc. It has the largest and most complete waste heat boiler research, development, design and manufacture in China. Base, the comprehensive market share of various waste heat utilization equipment is close to 50%.
As a new technology project, the trial of the sintering plant certainly also contains the possibility of failure. “But we have seen that our company has successfully sold more than 200 sets of cement kiln waste heat boilers, and the technical difficulties of sintering waste heat power generation and cement kiln waste heat power generation are very similar. Angang Steel people who value energy saving and dare to be the first person feel that the odds of success are still high. Yan Feilong, general manager of the Hangguo Group, told reporters that "after bidding, we finally got the project."
Before this, there were some domestic large steel companies that purchased the same kind of sintering waste heat power generation equipment in foreign countries, but their use was not satisfactory. Not only was the amount of steam collected small, but their operation was also unstable. "The reason is that equipment manufacturers and iron and steel mills are running two skins, and technical design, equipment purchase and installation have been separated, and technical and operational problems are often not solved smoothly," said Yan Feilong. At this time, Zhejiang Xizi United Engineering Co., Ltd., a subsidiary of the Hangcao Group, has implemented a variety of complete sets of services such as design, manufacture, installation and commissioning, and has gone beyond the sales of separate boiler products to boiler islands and power plant general contractors. The pace of the project.
In 2007, Ansteel and Hangguo Group signed a strategic cooperation agreement on energy-saving and emission reduction. Using their respective advantages, they jointly built a highly efficient recovery of waste heat from sintering projects, and received financial support from the country's major industrial technology development projects.
According to HG Group R&D personnel, sintering is an important process for iron and steel production. This process consumes about 10% of the total energy consumption of steel production. It is second only to the ironmaking process, and in this process, it is almost 50%. The heat energy is discharged into the atmosphere as flue gas and exhaust gas, which also contains a large amount of dust. If these waste heat is recycled, it will not only supply steam to the sinter plant, but also significantly reduce soot emissions. The R&D personnel adopted the first dual channel dual pressure waste heat boiler technology in China and used the residual heat of medium and low temperature flue gas from the sintering ring cooler to produce two kinds of pressure superheated steam, achieving efficient recovery and cascade utilization of the sintering waste heat. Due to the adoption of all flue gas recycling technologies, complete recycling of dust and sinters is achieved. Not only that, the system operates safely and steadily, and the efficiency of the boiler is also greatly improved. In 2009, the waste heat utilization technology adopted by the project --- "Method and device for utilization of flue gas waste heat" obtained national invention patents. The project also obtained three utility model patents at the same time.
In 2008, Ansteel applied its R&D results to its engineering practice. The supporting 360/400 m2 sinter machine built China's first purely domestically produced sintering waste heat efficient recovery power generation demonstration project. Since the project was put into operation in 2009, it has cumulatively generated 170 million kWh, of which about 108 million kWh of on-grid electricity has been generated. It has set a record of the highest domestic operating record of 24 kWh produced by a single-month-ton ore, and the comprehensive technical indicators have reached the domestic leading level. The direct economic benefit brought by the company's reduction in outsourcing power is approximately RMB 58.5 million.
The success of Angang's sintering waste heat power generation project also opened the market for Hangguo Group. Up to now, the Hangcao Group has successfully established 23 sets of equipment. Baosteel, Angang, Taigang, Hebei Iron and Steel Group, Shandong Iron and Steel Group and other large steel companies have become customers of the Hangguo Group.
“The iron and steel companies have abundant waste heat resources and the potential for energy savings can be tapped. Through the application of new energy-saving technologies for special equipment, companies are also increasing their competitiveness in reducing consumption and increasing efficiency,†said Shi Meilun.
It is reported that AQSIQ is about to announce two energy-saving technical specifications: "Boiler Energy-saving Technical Supervision Regulations" and "Industrial Boiler Energy Efficiency Test Methods". It puts forward specific energy-saving technical requirements for the boiler product design, manufacture, and installation process, and the boiler energy efficiency index. And operational management to make specifications.
Hangcao Group and Angang's project cooperation:
Technological Innovation Helps Energy Saving Go to the DCS control room of the sintering waste heat power plant of Anyang Iron and Steel Co., Ltd. The reporter saw dozens of technicians working intensively in front of their computers. The large screen in front shows the work of the sintering waste heat power generation system. Live.
"This set of sinter waste heat recovery power generation system has a very good energy saving effect. We made the first person to eat crabs," said Shi Meilun, Deputy General Manager of Angang Iron and Steel.
In 2007, it was learned that Ansteel wanted to use the waste heat power generation project. The sales staff of Hangzhou Boiler Group Co., Ltd. found the relevant person in charge of Ansteel to discuss cooperation matters. Hangguo Group is a professional enterprise that has long been dedicated to the development, design and manufacture of waste heat utilization equipment in the fields of electric power, metallurgy, chemical engineering, building materials, petrochemicals, etc. It has the largest and most complete waste heat boiler research, development, design and manufacture in China. Base, the comprehensive market share of various waste heat utilization equipment is close to 50%.
As a new technology project, the trial of the sintering plant certainly also contains the possibility of failure. “But we have seen that our company has successfully sold more than 200 sets of cement kiln waste heat boilers, and the technical difficulties of sintering waste heat power generation and cement kiln waste heat power generation are very similar. Angang Steel people who value energy saving and dare to be the first person feel that the odds of success are still high. Yan Feilong, general manager of the Hangguo Group, told reporters that "after bidding, we finally got the project."
Before this, there were some domestic large steel companies that purchased the same kind of sintering waste heat power generation equipment in foreign countries, but their use was not satisfactory. Not only was the amount of steam collected small, but their operation was also unstable. "The reason is that equipment manufacturers and iron and steel mills are running two skins, and technical design, equipment purchase and installation have been separated, and technical and operational problems are often not solved smoothly," said Yan Feilong. At this time, Zhejiang Xizi United Engineering Co., Ltd., a subsidiary of the Hangcao Group, has implemented a variety of complete sets of services such as design, manufacture, installation and commissioning, and has gone beyond the sales of separate boiler products to boiler islands and power plant general contractors. The pace of the project.
In 2007, Ansteel and Hangguo Group signed a strategic cooperation agreement on energy-saving and emission reduction. Using their respective advantages, they jointly built a highly efficient recovery of waste heat from sintering projects, and received financial support from the country's major industrial technology development projects.
According to HG Group R&D personnel, sintering is an important process for iron and steel production. This process consumes about 10% of the total energy consumption of steel production. It is second only to the ironmaking process, and in this process, it is almost 50%. The heat energy is discharged into the atmosphere as flue gas and exhaust gas, which also contains a large amount of dust. If these waste heat is recycled, it will not only supply steam to the sinter plant, but also significantly reduce soot emissions. The R&D personnel adopted the first dual channel dual pressure waste heat boiler technology in China and used the residual heat of medium and low temperature flue gas from the sintering ring cooler to produce two kinds of pressure superheated steam, achieving efficient recovery and cascade utilization of the sintering waste heat. Due to the adoption of all flue gas recycling technologies, complete recycling of dust and sinters is achieved. Not only that, the system operates safely and steadily, and the efficiency of the boiler is also greatly improved. In 2009, the waste heat utilization technology adopted by the project --- "Method and device for utilization of flue gas waste heat" obtained national invention patents. The project also obtained three utility model patents at the same time.
In 2008, Ansteel applied its R&D results to its engineering practice. The supporting 360/400 m2 sinter machine built China's first purely domestically produced sintering waste heat efficient recovery power generation demonstration project. Since the project was put into operation in 2009, it has cumulatively generated 170 million kWh, of which about 108 million kWh of on-grid electricity has been generated. It has set a record of the highest domestic operating record of 24 kWh produced by a single-month-ton ore, and the comprehensive technical indicators have reached the domestic leading level. The direct economic benefit brought by the company's reduction in outsourcing power is approximately RMB 58.5 million.
The success of Angang's sintering waste heat power generation project also opened the market for Hangguo Group. Up to now, the Hangcao Group has successfully established 23 sets of equipment. Baosteel, Angang, Taigang, Hebei Iron and Steel Group, Shandong Iron and Steel Group and other large steel companies have become customers of the Hangguo Group.
“The iron and steel companies have abundant waste heat resources and the potential for energy savings can be tapped. Through the application of new energy-saving technologies for special equipment, companies are also increasing their competitiveness in reducing consumption and increasing efficiency,†said Shi Meilun.
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