Core Application Scenarios of Water Ring Vacuum Pumps in Paper Industry

Water ring vacuum pumps, resistant to water vapor and paper wool, can operate continuously for 24 hours. They are standard vacuum equipment in paper mills, widely used in pulping, papermaking and finishing sections to meet vacuum needs of all links.

I. Papermaking Workshop (Core Application)

1. Wire Section Forming and Dewatering

In the wire section, vacuum suction boxes and vacuum couch rolls work together to remove excess water from pulp through negative pressure, enabling pulp fiber forming and initial shaping of paper sheets. It is the largest application scenario of water ring vacuum pumps in paper mills.

2. Press Section Dewatering

Vacuum press rolls and felt vacuum suction boxes suck moisture from press felts and paper sheets through negative pressure, improving the dryness of paper sheets after pressing and reducing energy consumption of subsequent drying sections.

3. Vacuum Threading

Water ring vacuum pumps provide stable negative pressure to adsorb newly formed wet paper sheets, realizing smooth transportation and connection, reducing paper breakage and ensuring continuous operation of paper machines.

4. Felt/Wire Cleaning

They suck residual fine fibers, fillers and impurities on forming wires and press felts through negative pressure, preventing wire clogging, ensuring smooth air permeability and extending wire service life.

II. Pulping Section

1. Pulp Vacuum Concentration, Vacuum Filtration, Washing and Black Liquor Removal: Used for pulp concentration, impurity separation and black liquor removal to improve pulp quality.

2. Wood Chip/Pulp Degassing and Impurity Removal: Remove air bubbles and fine impurities from wood chips and pulp to enhance pulp purity and uniformity.

3. White Water Recovery: Recycle white water through negative pressure filtration, separate fibers and impurities, and reuse the recovered clear water to save water resources.

III. Auxiliary Processes & Supporting Systems

1. Vacuum Dewatering, Negative Pressure Filtration and Sludge Dewatering: Dewater sludge from papermaking sewage treatment to reduce sludge volume and disposal cost.

2. Gas-Water Separation, Negative Pressure in Closed Vessels and Silo Air Extraction: Realize rapid gas-water separation, provide stable negative pressure for closed vessels, and exhaust moist gas and impurities from silos.

3. Negative Pressure Ventilation of Paper Machine Closed Hood: Extract moist gas and steam from closed hoods to ensure paper drying quality and improve workshop environment.

IV. Supporting for Special Paper/Corrugated Paper

1. Universal Application: Suitable for corrugated paper, carton board, toilet paper and cultural paper, meeting dewatering, threading and cleaning needs in production.

2. Pulp Molding and Wet Paper Forming: Provide stable negative pressure for pulp molding and wet paper forming, ensuring regular shape and product quality.