Kraft pulping process of camphorwood

Abstract

The invention discloses a kraft pulping process of camphorwood. The kraft pulping process comprises the following preparation steps that 100% camphorwood pieces are taken out for peeling, chipping andscreening operations, sent into a cooking pot for cooking operation, put into a scrubber for washing operation, sent into a pressure screen for screening operation, carried out bleaching operation byusing hydrogen peroxide, and sent into a slurry tower for storage operation. According to the kraft pulping process of the camphorwood, the purpose is that the camphorwood pieces after stewed camphorand camphor oil can be reused, process flow and process parameters can be made according to the material characteristics of camphorwood, the pulping cost is low, the pulp quality is good, and needs of high-grade paper production can be fully met.

Description

technical field [0001] The invention relates to the technical field of kraft pulping, in particular to a camphor wood kraft pulping process. Background technique [0002] The paper industry is an industry closely related to the development of the national economy and social undertakings. It involves many fields such as cultural communication and civil life. The consumption level of paper and cardboard is a symbol to measure the level of modernization and civilization of a country. [0003] my country is a country with a serious shortage of wood resources. Virgin wood pulp is significantly better than non-wood fiber in terms of water filtration performance, tensile strength and tear index. China needs to consume a large amount of wood pulp fiber every year. Domestic forest resources cannot support the huge demand, so a large amount of wood pulp is imported every year. How to improve the self-sufficiency rate of wood pulp and reduce the dependence on imported wood pulp is a ma...

AI Technical Summary

Problems solved by technology

[0007] It has been proved by experiments that this kind of camphor wood chips for cooking camphor and camphor oil is still a good raw material for pulping. After pulping, the average fiber length is about 0.85 mm, the fiber width is about 22 microns, and the fiber aspect ratio is about 40. After beating, the strength of the sheets increases rapidly. Under the percussion degree of 400SR, the fracture length is about 7.5㎞, and the tear index is about 7.5, which can meet the company's production needs. Therefore, our company aims at this kind of boiled camphor and camphor oil. The camphor wood chips have independently designed the pulping process, which can relieve the tension of wood raw materials to a certain extent and save limited wood resources. It is far more beneficial than other processing methods for this kind of wood chips. At present, there is no patent technology disclosure in this regard.

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