Among the four types of ceiling suspended ceiling materials, such as paper gypsum board, metal sheet, calcium silicate board and mineral wool sound absorbing board, the mineral wool sound absorbing board is more and more irreplaceable, such as sound absorption, fire prevention and energy saving. Become the material of choice for national key projects and home renovation. In 2008, the ceiling decoration of 18 Olympic venues including the Bird's Nest, the Water Cube and the Laoshan Bicycle Hall were all decorated with a brand of mineral wool decorative sound-absorbing panels. Li Huibin, general manager of Star Building Materials, believes that this means that the country will further encourage the production and promotion of environmentally friendly building materials. The mineral wool sound absorbing panel industry is becoming a promising sunrise industry.
The discarded newspapers sold by Beijing residents may become a kind of home decoration material--mine wool sound-absorbing panels. Next month, with the production of a new production line with an annual output of 25 million square meters, which is planned to be built by Beijing Xingpai Mineral Cotton Sound Absorption Board, as one of the raw materials for production, Beijing’s used newspapers will have a new place.
"But it is hard to imagine that such a good product is produced by blast furnace slag. The production water is recycled, which is in line with China's requirements for circular economy." Xing Zhiming, chief engineer of Star Building Materials, introduced. He revealed that according to the current production formula of mineral wool acoustic board, more than 80% of the raw materials are wastes discharged by steel companies, slag, and 2%-3% of the pulp needed in the formula is processed from waste newspapers. .
The domestic market demand for mineral wool sound absorbing panels is 60 million to 70 million square meters per year, and it is steadily increasing at a rate of 15%-20% per year. The current production volume is far from satisfactory. Star Brand is in the process of building a new production line with an annual production capacity of 25 million square meters in Hebei Dachang, and improved the formula, increasing the consumption of used newspapers to 15%, and using more than 9,000 tons of used newspapers every year. At the end of September this year, the production line will be officially put into production. At that time, Star Building Materials will become the largest production base of mineral wool sound absorbing panels in Asia.
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