Method using wood chip hot grinding pulp to replace OCC pulp to produce kraft liner board paper
A production method and technology of kraft boxes, applied in the field of papermaking, can solve the problems of tight supply of OCC waste paper and so on
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Embodiment 1
[0038] This embodiment relates to a production method for producing kraft linerboard by thermally refining wood chips instead of OCC pulp, comprising the following steps:
[0039] OCC stock preparation:
[0040] Using waste cardboard as raw material, OCC pulp is produced through conventional OCC pulping line feeding, crushing, deslagging, screening, thickening, pulp refining, and pulp storage;
[0041] Wood chip thermal refining pulp preparation:
[0042] Using twig wood chips as raw materials, wood chips are thermally refined through the process of wood chip thermal refining preparation line feeding, wood chip thermal grinding, double disc refining, fine screening, concentration, and pulp storage;
[0043] Wherein, in the thermal grinding step of the wood chips, a thermal grinder is used to thermally grind the twig wood chips, and the twig wood chips are decomposed into single wood fibers; Refining, the refined pulp is screened through a fine sieve, and the screened pulp is...
Embodiment 2
[0068] The production method for producing kraft linerboard by thermally refining wood chips instead of OCC pulp involved in this example is different from the production method for producing kraft linerboard by thermally refining wood chips instead of OCC pulp disclosed in Example 1 in that in the pulping step Among them, wood chip thermal refining accounts for 25% of the pulp of the kraft liner paper core layer; the proportion of wood chip thermal refining in the kraft liner paper core layer directly affects the amount of OCC pulp used, and the proportion of wood chip thermal refining The larger the value is, the more the consumption of OCC waste paper can be reduced, and vice versa.
Embodiment 3
[0070] The production method for producing kraft linerboard by thermally refining wood chips instead of OCC pulp involved in this example is different from the production method for producing kraft linerboard by thermally refining wood chips instead of OCC pulp disclosed in Example 1 in that in the pulping step Among them, wood chip thermal refining accounts for 30% of the pulp of the kraft liner paper core layer; the proportion of wood chip thermal refining in the kraft liner paper core layer directly affects the amount of OCC pulp used, and the proportion of wood chip thermal refining The larger the value is, the more the consumption of OCC waste paper can be reduced, and vice versa.
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