Pulp production process technology combined of biolysis (FYR6 soft rot) and mechanical process

Abstract

The invention relates to a paper pulp production technique which combines biolysis with machine work and has no used water discharging. It includes smashing the raw material, laying crack, biolysis, high-pressure pressing bursting, mediating, jordaning, pulp screening, and shoving. The used water can be used circularly to realize zero discharging. The paper pulp raw material includes straw, ditch reed, bamboo etc. The production technique has the advantages of no pollution, saving water, and low material consumption etc. And its cost is 40% of the chemical process. It is green high and new-technology industries with high economic benefit used to make food wrap paper, medicine wrap paper, and various papers.

Description

technical field [0001] The invention relates to a process for manufacturing pulp, in particular to a pulp production process technology combining biological decomposition (FYR6 soft rot bacteria) and mechanical processing. Background technique [0002] The invention of paper has greatly promoted the development of civilized society. At present, the world's annual per capita paper consumption is 51.8 kilograms, and China's annual per capita paper consumption is 32 kilograms, ranking second in the world. In 2004, China produced 43 million tons of paper and consumed 51 million tons of paper annually, and still needed to import a lot of paper. [0003] The commonly used paper production processes are mainly "alkali method" and "sulfite method", which use a large number of chemical raw materials to extract lignin pulp from wheat straw, straw, reed, bagasse, bamboo and wood. Lignin is a substance that binds cellulose in plants. Only by decomposing lignin to disperse and flocculat...

AI Technical Summary

Problems solved by technology

However, because lignin is an amorphous macromolecular structure, it has strong stability, and only a small amount of fungi in microorganisms can degrade lignin. For example, white rot fungi can only degrade some lignin, and it is easy to be polluted by miscellaneous bacteria, so it has very high environmental requirements. Harsh, it needs both humidity and ventilation. At the same time, white rot fungi need to supply a lot of oxygen to decompose lignin. Because the slurry must not invade the water, it is difficult to ensure uniform temperature, resulting in increased costs.

Nevertheless, it takes more than 30 days for white rot fungi to degrade lignin in 60% of paper-making materials, and the culture period of these white rot fungi is too long to be suitable for industrial production