Clean pulping process

Abstract

The present invention relates to a pulping technology, in particular to a clean pulping technique with straw or broad leaves as raw materials. In the technical scheme, the clean pulping technology mainly includes twelve steps: (1) straw cutting or fragmenting and dedusting; (2) a fly cutter material-washing pool; (3) a raw material bin; (4) a press master; (5) the first-stage high-consistency grinding; (6) a reaction bin; (7) a press master; (8) the second-stage high-consistency grinding; (9) a high-consistency bleaching and temperature-keeping bin; (10) pulping; (11) filtering; (12) washing and whiteness enhancement. The technology uses straw or broad leaves as raw materials to realize the pollution-free fiber pulping technique, and applicable to large and medium paper-making enterprises, the whole pulping technique has the advantages of simplicity, low production cost, high yield rate of white pulp, good pulp quality, obvious reduction of energy consumption, etc.

Description

1. Technical field: [0001] The invention relates to a pulping technology, in particular to a clean pulping process using grass or broadleaf as raw materials. 2. Background technology: [0002] Papermaking is one of China's four great inventions, with a history of more than 1,800 years. However, my country's pulping technology is far behind foreign countries. Some papermaking companies have introduced a large number of foreign equipment and technologies. Now, my country is also the largest waste paper producer. Importing countries, and the imported waste paper contains a lot of highly polluting garbage paper, which is polluting our own homes and rivers, lakes, and lakes. According to statistics, my country's waste paper imports reached 15 million tons in 2005, while in 2006 According to statistics in 2010, the country imported more than 25 million tons of waste paper and 8 million tons of wood pulp. [0003] Since 2003, I have successively applied for a number of pulping paten...

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Problems solved by technology

[0003] Since 2003, I have successively applied for a number of pulping patents in China, such as "Pulping Process of Soaking Wheat Straw Without Cooking Medicine" with the application number of 200310105535.7, and "Environmentally Friendly and Rapid Pulping of Broad-leaved Wood by Cold Soaking" with the patent number of 200510043630.8 "Technology", application number 200610042014.5 "Gramina Rapid Cold Soaking Mechanical Pulping Technology", application number 200610044632.3 "A New Process for Woody Materials Cold Soaking Mechanical Pulping", application number 200610114218.5 "Environmental Protection System "Pulping Agents and Processes"; while "Environmental Protection Pulping Agents and Processes" is aimed at the current situation of my country's wheat straw pulping industry: serious pollution, 90% of wheat straw pulping production lines have been shut down, a large number of pulping equipment have been idled, wheat straw wasted, causing huge economic losses

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