Novel system and method for cleaning slurry on net

Abstract

The invention provides a novel system and method for cleaning slurry on a net. The system comprises a first pipeline, a second pipe line, a water tank, a main pipeline and a settling pond, wherein the first pipeline, the second pipeline and the water tank are respectively connected with the main pipeline, the main pipeline is connected with the settling pond, a slurry connecting pipe is arranged at the upper part of the settling pond and is as high as an overflow pipe on the water tank, a slurry distributer is arranged in the settling pond, and the main pipeline is connected with the slurry distributer. The method comprises the following steps of: diluting 3-3.5% thick slurry which is from the pipelines and 0.501% return slurry which is from the pipelines by using water from the external water tank, and sending the diluted slurry into the settling pond; distributing the slurry by using the slurry distributer; slowly sending the slurry flow upward till the slurry flow reaches the slurry collecting pipe, then sending the slurry flow into a slurry flushing pump and pumping the slurry flow to a front screen, and then sending the screened slurry flow to a headbox; and since heavier impurities slowly fall down and precipitate on the bottom of the settling pond, washing with water and finally discharging to the outside.

Description

technical field [0001] The invention belongs to the field of papermaking flow delivery system, especially the field of flow delivery slag removal system. Background technique [0002] The traditional sizing system generally uses a conical slag remover to remove heavy impurities. In order to reduce the loss of fibers during the sizing process, multi-stage slag removal is generally used, usually 3 to 5 stages, and each stage needs to use a slurry pump to provide about 30 meters. Head to transport, so more energy consumption, and finally about 1% of the fiber is discharged as pulp rejects. Contents of the invention [0003] The purpose of the present invention is to overcome the above disadvantages and provide a novel system and method for purifying the online slurry, so as to achieve the purpose of saving energy and reducing consumption. [0004] For realizing the purpose of the present invention, the present invention adopts following technical scheme: [0005] A new onli...

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Problems solved by technology

[0002] The traditional sizing system generally uses a conical slag remover to remove heavy impurities. In order to reduce the loss of fibers in the slag removal process, multi-stage slag removal is generally used, usually 3 to 5 stages, and each stage needs to use a slurry pump to provide about 30 meters. Head to convey, so more energy consumption, and finally about 1% of the fiber is discharged as pulp

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