Zero Emission from Top of Blast Furnace in Shougang
Recently, the blast furnace of Shougang Co. has realized the full recovery of gas and dust from top charging tank, and has really achieved zero emission, which fills a gap in the history of metallurgy in China. This technology has extensive popularization value.
In the process of blast furnace production, a large amount of gas and dust will be produced due to the continuous feeding of top charging tank into the furnace. Previously, due to the lack of appropriate technology and equipment, these gas and dust were directly discharged into the atmosphere through the tank release valve. In addition, when gas and dust are discharged, the scream of the release valve also causes noise pollution to the factory area and even the surrounding residential areas. Because the recovery of gas and dust is very difficult, the most advanced level in China is still in the state of semi-recovery. Shougang Co., Ltd. from the dual point of view of environmental protection and energy saving, proposes to thoroughly eradicate this stubborn disease.
Shougang Co., Ltd. jointly with Shougang International Engineering Company, expands its thinking, innovates boldly, adheres to the requirements of compact and efficient engineering, recycling and saving, clean and environmental protection and digital engineering, and designs meticulously and improves continuously. Designers and technicians have worked out a thorough reform plan for blast furnace top pressure equalizing and releasing system, dry dust removal system and corresponding supporting system. Recently, the renovation has been completed and put into use successfully. The scheme has many advantages, such as compact layout, small area, low investment, short construction period and little impact on production. According to estimates, only a 2650 cubic meter blast furnace can recover all dust and blast furnace gas at the same time every year, which can produce good social benefits and economic benefits of about 1.6 million yuan per year.

重点词汇

• 股份公司joint-stock company; stock company; common-law corporation; company with share capital
• 零排放zero release
• 生产过程productive process
• 技术和设备technology and equipment
• 放散阀blow off valve
• 尖啸声zing
• 居民区residential quarters; residential area
• 噪音污染noise pollution; sound pollution
• 最先进most advanced
• 停留在rest on