Classic Cases

Grinding disc design and selection

Grinding disc design and selection

The tooth width of low-consistency grinding discs has no certain rules. Under the condition of a certain tooth width + groove width, when dealing with free slurry, consideration should be given to appropriately reducing the tooth width and correspondingly increasing the groove width to weaken the squeezing friction effect of the tooth surface and enhance the cutting ability. When dealing with viscous slurry, consider increasing the tooth width and reducing the groove width to enhance the tooth surface effect and inhibit the cutting effect, thereby enhancing the filament brooming ability.

19

2023

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10

A papermaking company in Zhejiang: Its pulping line is equipped with 5 series DDR26-inch disc mills, one of which is used as a backup

A papermaking company in Zhejiang: Its pulping line is equipped with five series-connected DDR26-inch disc mills, one of which is used as a backup. The percussion degree requirement has been increased from the original 25SR° to 80SR° to maintain the original fiber length as much as possible. The original tooth shape is similar to MP26-05 (4.7X5.1) → MP26-05 → MP26-01 (4X4.5) → MP26-01. The tapping degree can only reach 65SR°. After improvement by our company, the tooth shape is MP26-06 (4.7X5.1) → MP26-02 (3X3.7) → MP26-12 (2.8X3) → MP26-12 met its company requirements.

28

2019

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11

A papermaking company in Zhejiang: two 34-inch double disc mills connected in series, the original tooth shape is similar to MP34-05

A papermaking company in Zhejiang: Two 34-inch double disc mills connected in series. The original tooth shape is similar to MP34-05 (5.1X4.7) → MP34-03 (5.5X7). It reflects that the fiber splitting effect is poor. Through our After the company improved the tooth shape to MP34-04 (2X2) → MP34-04, it met its process requirements. A papermaking company in Guangdong: three 28-inch double disc mills connected in series. The original tooth shape is similar to MP28-03 (5X5) → MP28-03 (5X5), which reflects the poor fiber splitting effect. After the teeth were improved by our company After the shape is MP28-11(3X3)→MP28-11(3X3), it meets its process requirements.

28

2019

/

11

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