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Pulp mixing system in papermaking process

A pulp mixing and process technology, applied in the field of papermaking, can solve the problems that long fibers and pulp masses cannot pass, cannot achieve the effect of refining pulp, and affect the effect of refining pulp, so as to avoid invalid start-up time, improve appearance quality, and improve pulp quality. The effect of boosting

Pending Publication Date: 2020-01-17
合肥银山棉麻股份有限公司
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Problems solved by technology

The blade shapes of the two refiners are the same, and the requirements for the length of the beating semi-pulp fibers are strict, and the long fibers and pulp lumps cannot pass through, which may easily cause blockage of the pulp pipe
In order to avoid blockage of the pulp tube, the current of the initial pressure knife is low, the effect of fine pulp cannot be achieved, and the start-up time is long
[0003] Two refiners are used in series, if one of the blades is adjusted, the effect of the refiner will be affected

Method used

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  • Pulp mixing system in papermaking process

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Embodiment Construction

[0014] The present invention will be further described below in conjunction with embodiment.

[0015] Such as figure 1 Shown is a pulp mixing system in the papermaking process. The difference between this system and the traditional system is that the serial production of 2 refiners is changed to 3 serial production. Adding the first one is a half pulp knife refiner to loosen and cut off the long-fiber pulp clusters in the initial treatment pulp of the beater, which can not only shorten the beating time, but also improve the pulp passing capacity of the subsequent refiner, (35 ×35×7)

[0016] After 1# refiner 1 decomposes the pulp evenly, 2# refiner 2 and 3# refiner 3 step by step to reduce the gap between the knife distances, and the cutting current required by the process can be reached after starting up, ensuring the effect of refinement (2 #: 35×19×7; 3#: 35×12×10). Add a mixing tank 4 to stir and mix the pulp after the three refiners are refined to ensure that the diffe...

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Abstract

The invention provides a pulp mixing system in a papermaking process. The system comprises three refiners connected in series, wherein inlet ends of the refiners are connected with a pulp inlet pipe,outlet ends are connected with a pulp mixing tank through a pipeline, and the pulp mixing tank is connected with a post-pulp pumping pool through a pulp pump and a pipeline. According to the pulp mixing production process of multiple refiners connected in series, the pulp is mixed uniformly, the fiber uniformity is good, the paper surface of a cotton pulp board is flat, and the appearance qualityis improved. Production is carried out by multiple refiners connected in series, the pulp refining effect is improved, and then stirring and pulp mixing are performed through the pulp mixing tank, different pulps produced by ingredients are mixed uniformly, folding resistance of a finished product is maintained to be uniform and consistent, a ratio of cotton velvet is reduced somewhat, and the annual cost saving is estimated to be about 100000 Yuan. The total energy saving and consumption reduction is 400000 Yuan.

Description

technical field [0001] The invention belongs to the technical field of papermaking, in particular to a pulp mixing system in a papermaking process. Background technique [0002] At present, the half pulp treated by the beater in the market is put into the pulp storage tank to mix the pulp, and then pumped to two series-connected refiners to further cut the fibers. The blade shapes of the two refiners are the same, and the requirements for the length of the beating semi-pulp fibers are stricter, and the long fibers and pulp lumps cannot pass through, which may easily cause blockage of the pulp pipe. In order to avoid blockage of the pulp tube, the current of the initial pressure knife is low, the effect of fine pulp cannot be achieved, and the start-up time is long. [0003] Two refiners are used in series, if one of the blades is adjusted, the effect of the refiner will be affected. Contents of the invention [0004] The purpose of the present invention is to improve the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21D1/02
CPCD21D1/02
Inventor 何模祥苏宁东
Owner 合肥银山棉麻股份有限公司
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