在当前及未来一段时间内,中国和北美造纸企业面临的主要挑战是如何在提高产品质量的情况下控制生产成本,增加产量。满足用户需要是企业在市场中立于不败之地所必须具备的条件。因而,根据用户的最终需求,必需在生产中经常对纸机进行调整,如提高白水封闭循环程度和提高废纸回用率 At present and in the coming period, the major challenge facing Chinese and North American papermakers is how to control production costs and increase output while improving product quality. Meet the needs of users is the business must be in an invincible position in the market must have the conditions. Therefore, according to the final demand of the user, it is necessary to adjust the paper machine frequently in production, such as increasing the closed circulation degree of white water and increasing the recycle rate of waste paper