The hottest view on the existing problems of Yunna

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Judging from the development trend of paper products in the world, the existing problems of Yunnan forestry and paper industry

forestry and paper industry is a new way for people in mountainous areas to get rid of poverty and become rich. The small scale and lack of competitiveness of enterprises are the prominent problems existing in the forestry and paper industry in Yunnan Province. There are 57 paper-making enterprises with annual sales revenue of more than 5million yuan in Yunnan Province in 2003, with an annual production of nearly 200000 tons. The average actual production of each enterprise is about 3500 tons, which has not reached 1/3 of the country. Due to the small average scale, weak competitiveness and similar product structure, many enterprises have poor economic benefits. The supply of raw materials is insufficient. This is an important factor restricting the development of forestry paper integration in Yunnan Province: at present, there are five pulp and paper enterprises in Yunnan that use wood as raw materials, with a production capacity of more than 200000 tons. Due to the shortage of raw materials, the annual production capacity is only more than 100000 tons. Environmental protection and pollution. According to the statistical data, it is unnecessary to choose the address of the channel: the sewage discharge of the National Pulp and paper industry accounts for about 10% to 12% of the total sewage discharge, ranking third; The chemical oxygen demand (COD) in the discharged sewage accounts for about 40% to 45% of the country, ranking first. The paper industry in Yunnan Province is also embarrassed. In recent years, the annual wastewater discharge of paper and paper products industry in Yunnan Province is about 36.821 million tons, accounting for 1.2% of the total discharge of the country. Thinking brought by the world trend from the global situation, in recent years, the world output of paper products has maintained a growth rate of more than 3%. Seven of the world's top 500 are paper enterprises. In 2003, the world's pulp output reached more than 400 million tons, of which wood pulp accounted for 70%, and the output of paper and paperboard was 340 million tons. The development of the world paper industry shows six characteristics: countries with advanced paper industry in the world have achieved economies of scale. At present, the average production scale of enterprises in the international paper industry has reached 80000-100000 tons, and that of advanced countries has exceeded 200000 tons, with obvious economies of scale. In 2003, the world's top 50 largest paper companies accounted for more than half of the world's paper and paperboard production. The continuous improvement of the integration of papermaking technology is the development trend of the world's papermaking industry. At present, the paper-making enterprises in the world's advanced countries rely on scientific and technological innovation, adjust the technological structure, optimize the allocation of scientific and technological resources, and widely use information, network, automatic control and other technologies to improve the degree of technological integration. Pulp and paper-making equipment has developed towards large-scale, automation and high efficiency. The world's advanced production mode of paper industry has realized the transformation from extensive utilization of resources to intensive utilization of resources. More than 90% of the enterprises in the United States, Canada, Finland and other countries, the world's paper power, have achieved resource intensification, achieved self-sufficiency in raw materials, and production consumption has decreased year by year. The demand for paper products in the world 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, while high-quality offset paper, color book paper, high-grade cultural paper, high-grade production paper, kraft paper and kraft linerboard, coated paper, etc. have become the mainstream demand. With the development and utilization of new materials, the paper-making enterprises in the former advanced countries in the world have adopted advanced technology, and the expansion rate of small cracks is much higher than that of long cracks. Starting from all links of production, we should vigorously implement cleaner production. For example, in the international advanced chemical wood pulp production, the chemical oxygen demand (COD) in the sewage discharge of most enterprises is 30-50 kg/ton of pulp, and the biological oxygen demand (BOD) is less than 1 kg/ton of pulp. Germany has achieved zero discharge of pulping wastewater by using the most advanced chemical thermomechanical pulp (BCTMP) pulping wastewater closed circulation system. The integration of forestry and paper is a development model widely used in the world paper industry. International large-scale pulp and paper enterprises build fast-growing and high-yield raw material forest bases in various forms, and combine afforestation, forest management, logging, pulping, papermaking and sales, forming a virtuous circle of industrial practice. The world leading project team discussed whether to use thermoplastic or thermosetting plastics to make wood raw materials into the national paper industry, which has reached 90%, and more than 95% in the United States, Sweden and other countries

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