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Paper machine industry should be closely connected with scientific and technological innovation and environmental protection

Nov 10, 2021

Analysts pointed out that the fixed asset investment per yuan of output value of China's paper industry is 3.27 yuan, equivalent to 3.48 times that of the food industry and 2.6 times that of the textile industry, which is roughly equivalent to the investment level of the petroleum and chemical industries. Therefore, the scale effect of the paper industry is very significant. The competitiveness of enterprises is mainly reflected in the advanced level of equipment and the scientific and technological content of products.

The pulping and papermaking equipment of papermaking enterprises in the world's advanced countries has developed towards large-scale, electromechanical integration, automation and high efficiency. Information, network, automatic control and other technologies are widely used in papermaking, and integrated information technology management is carried out in an all-round way. Some paper enterprises in advanced countries also rely on scientific and technological innovation, adjust the technical structure, optimize the allocation of scientific and technological resources, widely use information, network, automatic control and other technologies, and improve the degree of technological integration. Especially pulping and papermaking equipment has developed to large-scale, automatic and efficient integration.

At present, there are more than 1000 kinds of paper products on the market, and only 600 kinds in China. The world demand for paper products has changed from quantity to quality, and paper products have developed from single function to multi-function. The market of low-grade book paper, writing paper, packaging paper and paperboard is gradually shrinking. High quality offset newsprint, color book paper, high-grade cultural paper, high-grade production paper, kraft paper, kraft board and coated paper have become the mainstream of demand.

The analysis shows that the development history of China's paper industry has proved that paper enterprises who have a far-reaching vision in environmental protection are more likely to win the future.

In the process of promoting low-carbon economy, the paper industry has always emphasized the integration of forest, pulp and paper, made full use of the organic combination of market, land, pulp and paper, formed an industrial chain of paper-based forest cultivation and forest-based paper promotion, and realized economic production, energy conservation and emission reduction. In addition, the integration of forestry, pulp and paper also helps to solve the problem of raw materials. More than a dozen large and medium-sized paper enterprises with wood as the main raw material have successively established their own raw material bases, and regard tree planting as the workshop of paper enterprises. At present, the relevant national ministries and commissions attach great importance to it and have gradually issued relevant policies to promote the implementation of "forest paper integration". Of course, it will take considerable time for the real large-scale implementation and effect.

In terms of the current form, starting from all links of production, for example, in papermaking, the use of large-scale high-speed paper machines and advanced papermaking chemicals will greatly reduce the water consumption and pollutant emission of papermaking; In terms of pulping technology, the use of advanced chemical thermal grinding mechanical pulping and wastewater closed circulation system can basically realize the zero discharge of pulping wastewater; In terms of waste treatment, mature wastewater closed cycle treatment technology, high-tech sewage treatment equipment and environmental protection technology are used to achieve pollution control, energy conservation and consumption reduction and improve the comprehensive utilization rate of resources. By analogy, it may be more practical to gradually promote cleaner production within enterprises.