Desulfurization gypsum powder - gypsum board production low-carbon environmental protection development direction

China is an energy-deficient country, building energy consumption accounts for 28% of China's total energy consumption. In the implementation of the national sustainable development strategy and the construction of energy-saving society, the development of low-carbon economy today, the use of industrial by-product - desulfurization gypsum made of paper gypsum board light wall system, as a non-load-bearing wall is a hallmark feature of modern architecture, especially industrial by-product gypsum is recycled at the same time, It can effectively reduce the consumption of natural resources and energy, the discharge of harmful gases and the destruction of cultivated land brought by firing clay bricks.
For example, with an annual output of 1 billion square meters of gypsum board, it can have an annual comprehensive utilization capacity of 100 million kilowatts of thermal power plant desulfurization waste treatment capacity, that is, the annual absorption of desulfurization gypsum 10 million tons, equivalent to a thorough reduction of sulfur dioxide 3,809,500 tons, at the same time replacing clay brick 60 million cubic meters. It can reduce the destruction of 15000 mu of farmland. Will tell with respect to at present whole plasterboard industry, the comprehensive energy consumption of plasterboard of every square metre (include electricity use) does not exceed 1.5kg standard coal on average, every square metre double-sided single-layer plasterboard partition wall, its production energy consumption is about 3 kg standard coal, and the production energy consumption of every square metre single brick clay brick wall averages more than 9 kg standard coal. According to the current 20% plasterboard used for partition wall, according to this calculation of 1 billion square meters of plasterboard can save 700,000 tons of standard coal, reduce emissions of 1.9 million tons of carbon dioxide, absorb 45,000 tons of sulfur dioxide.
To sum up, the production and application of desulfurized gypsum must be strongly supported by the state.