Overview
ZY-DJ-23 23-liter Wali Refining Machine is an international standard equipment used in papermaking laboratories to study pulp and paper processes. The machine treats various fiber stocks by the mechanical force of the knife roller and the bottom knife, which can realize the functions of cutting, crushing, rubbing, splitting, swelling and refining the fibers. The equipment meets the requirements of ISO 5264/I, TAPPI-T200 and GB7980-87 standards, and can change the heavy thallium pressure, Refining time and automatically control the Refining time to obtain different experimental results.
Features
1. Meet ISO 5264/I, TAPPI-T200, GB7980-87 and other international standards
2. Adjustable Heavy Thallium Pressure and Refining Time
3. With automatic control Refining time function
4. Refining test for a variety of fiber materials
5. Standard Stock Capacity 23 Litres, Pulp Tank Volume 45 Litres
6. The specification of the flying knife roller is 194mm in diameter × 155mm in length.
7. Rotation speed stable, high accuracy (8.3 +/- 0.2r/s or 500 +/- 10r/min)
Principle
The Fiber Stock is processed by the mechanical force between the blade roller and the base blade. Measurement of the Stock with a specified concentration is performed between the blade and the base blade of the Valley Refining machine. Refining process can be used for timing sampling and measurement of Pulp dissociation.
Applications
Paper production test, quality control, process formulation, teaching and research experiment
Standards
ISO 5264/I、TAPPI-T200、GB7980-87
Steps
1. Take 360 grams of absolute dry pulp and soak it in 23 liters of water
2. Shred Stock into 25x25mm Pieces
3. Pour the Processed Stock into the Refining Basin
4. Pulp dissociation is tested every 15 minutes (sulfite pulp) or 20 minutes (Kraft Paper pulp)
5. Continuous testing until the required Freeness/Schopper-Riegler is achieved
Notice
• Stock should be within the range of 200g~ 700g dry pulp
• Stock needs to be torn into 25mm × 25mm pieces
• 750W/380V power requirements
• The water source can be supplied in a gap or continuous manner
• Net weight of equipment 200Kg, gross weight 280Kg, need to pay attention to installation load-bearing
