As one of the three building cementitious materials, gypsum is a globally recognized green building and decoration material, which is mainly applied to non-structural interior decoration, wall and insulation materials of buildings. With the rapid development of national economy and urbanization, the demand for building materials continues to grow, and the building materials industry has become the industry that consumes the most industrial by-product gypsum.
According to Tang Shaolin, Guizhou, Sichuan, Hubei, Chongqing and other places have issued a series of policies on the utilization of industrial by-product gypsum resources, but there are always difficulties in the "use" of the terminal. For example, phosphogypsum with high and diverse impurity content is a relatively complex and costly pretreatment process. If the high standard processing, will lead to high prices of finished products, market competitiveness is not strong; But if you lower the standards, it's hard to guarantee quality. Over time, consumers have a negative impression of the poor quality gypsum materials, which are yellowing, moldy and cracked, and the market is not so receptive that companies are reluctant to continue investing, thus getting into a vicious circle."
In this regard, Tang Shaolin believed that Representative Liu Lifen's proposal of "building deep processing, storage and transportation bases nationwide" is a very practical and effective solution. In order to guide the healthy development of the industry, the first thing to ensure the quality of products, secondly to avoid low price competition, but also to maintain a stable supply. By establishing a number of industrial by-product gypsum deep processing and storage and transportation bases, integrating industrial by-product gypsum resources in the surrounding areas, building an industrial chain from raw material supply to primary processing, deep processing and fine processing, gradually forming a brand and scale effect, and using market means to solve the triple problems related to product quality, price and supply quantity.
Tang Shaolin analyzed that the deep processing and storage base can take raw material purchase and storage as a means to occupy a considerable market share in the industry, providing a basis for maintaining the market and order; Relying on domestic leading technology, we guarantee the quality of products supplied by the base through compounding and grinding. Deep processing and storage and transportation bases can also regulate market prices, to ensure reasonable prices but also leave room for reasonable profits in the industry, to avoid low-price evil competition. In the nationwide distribution, extensive collection and storage to ensure the stable supply of products, so as to meet the large number of architectural decoration market applications.
In addition, Tang Shaolin also encouraged related enterprises to further broaden their horizons and ideas, and make plaster "live". For example, the development of industrial by-product gypsum quality online monitoring technology and low-cost online adjustment technology, improve and optimize the operation process, improve the quality stability of industrial by-product gypsum; Accelerate the use of waste heat and pressure of industrial by-product gypsum drying, calcination of advanced technology and large complete sets of equipment science and technology; Development of high value-added products such as ultra high strength α gypsum powder, gypsum whisker, glass fiber reinforced gypsum, high-grade mold gypsum powder production technology and equipment; Developing low cost, high efficiency and environmental protection phosphogypsum pretreatment and purification technology; Development of phosphogypsum, titanium gypsum preparation of type Ⅱ anhydrous gypsum and production of super sulfate cement technology; Research and development of gypsum building materials for prefabricated construction of new products, new technology.
Industrial by-product gypsum is not a single resource, product or industry, involved in a wide range of areas. Tang Shaolin said that as long as we give full play to the macro-guiding role of the government, the guiding role of industry associations, the basic role of the market in allocating resources and the incentive role of preferential policies, we can create a better institutional environment, policy environment and market environment, and promote the transformation of industrial by-product gypsum from "small, inefficient and dispersed utilization" to "large, efficient and large-scale utilization".
