Pulping method of mulberry whole tree chemical mechanical method

Abstract

A chemi-mechanical pulping method for a whole paper mulberry comprises the following steps that firstly, the whole paper mulberry is taken and washed so that impurities can be removed; secondly, the whole paper mulberry is sliced, and the thickness of each slice is a leading indicator and is 3-5 mm; thirdly, steaming is carried out for half hour with the temperature being about 85 DEG C; fourthly, extrusion is carried out through a single-screw shredder; fifthly, washing and screening are carried out to remove black skin; sixthly, chemi-mechanical pulping is carried out, the washed wood slices are subjected to chemi-mechanical pulping, and an Andritz Sprout Bauer or METSO chemi-mechanical pulping production device can be adopted to production, or a double-screw pulping device can be adopted to production; seventhly, obtained whole paper mulberry chemi-mechanical pulp has characters of continuous fiber-like chemical pulp, and continuous fiber accounts for about 15 %; the characters of the pulp can be adjusted according to types of products. According to the chemi-mechanical pulping method, paper mulberry resources are greatly utilized for whole paper mulberry pulping, the characters of the continuous fiber of bast of the paper mulberry is taken into full play, and the performance and application of the pulp are improved.

Description

technical field [0001] The invention belongs to the field of pulping and papermaking, and in particular relates to a chemical-mechanical pulping method of mulberry trees. Background technique [0002] Broussonetia papyrifera (scientific name Broussonetia papyrifera) is a deciduous tree (plant) of the genus Broussonetia in the family Moraceae: also known as the paddle tree, the ancient name is Chu, and the genus Broussonetia is a fast-growing broad-leaved species. The mulberry tree has the characteristics of fast growth, strong adaptability, wide distribution, easy reproduction, high heat, short rotation period, and strong pollution resistance. Its roots, stems and leaves have high utilization value. It is distributed in eastern Asia and the Pacific Islands, and is a common tree species in the low mountain areas of the northern and southern provinces of my country. The mulberry tree is a deciduous tree with a height of 16 meters and a DBH of 60 centimeters. The bark is dark ...

AI Technical Summary

Problems solved by technology

[0010] Due to the lack of sources of bark and the high cost of pulping, no one is willing to use bark pulp, and there has never been a mature market, bark has not been effectively utilized

At present, there is only a small part of mulberry bast pulp in general. Due to environmental problems, it is difficult to find factories that actually produce it.

Although there are many papers and researches on tree-building, tree-building resources have not been rationally utilized in reality.