Multi-disc vacuum pulp washer

Abstract

The invention discloses a multi-disc vacuum pulp washer and belongs to the technical field of papermaking equipment. The pulp washer comprises a trough body. Multiple filtration discs which are connected to a main shaft and are parallel to each other are arranged inside the trough body. Each filtration disc is formed by splicing multiple independent sector plates, the surface of which is provided with a filter screen. The main shaft is a hollow structure. The hollow structure of the main shaft is divided into multiple independent channels. Each channel is communicated with one sector plate of each filtration disc. The main shaft is connected to a driving device. The main shaft is directly or indirectly connected to a distribution valve. A washing device, a pulp stripping device and a screen washing device are successively arranged in the rotation direction of each filtration disc near the filtration disc above the trough body. Under the condition of the same length and diameter, filtration area can reach 460 m<2>. The multi-disc vacuum pulp washer has advantages of high rate of output, high safety and the like, and can greatly meet large-scale production requirements of modern papermaking enterprises.

Description

Technical field [0001] The invention relates to a vacuum washer, in particular to a multi-disc vacuum washer, belonging to the technical field of papermaking equipment. Background technique [0002] Vacuum washing machine is a mature and reliable multi-stage series countercurrent hot water displacement washing equipment that uses vacuum as the filtering power to wash wood pulp, bamboo pulp, reed pulp, wheat straw pulp and straw pulp. It can be used for washing and bleaching pulp, as well as coarse pulp after cooking. After years of development, the filtration area of ​​the traditional drum vacuum washer has reached 120m 2 , The filter unit drum has a diameter of 4m and a length of nearly 10m. Due to the limitation of its own structure, the filtration area of ​​this size vacuum washer reaches 120m 2 Already basically close to the limit, this type of equipment can no longer meet the large-scale production needs of modern papermaking enterprises due to large area, high investment, ...

AI Technical Summary

Problems solved by technology

[0003] The present invention provides a multi-disk vacuum pulp washer for overcoming the technical problems of large equipment size, small filter area, difficult production capacity to meet production needs, difficult manufacturing, and difficult transportation in the above existing product equipment.

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