Rock wool panel producing process is a complicated process. Following is an introduction to the production process of rock wool board by HaoAir Tech.
1. Raw material system
Raw materials consist of basalt, dolomite and coke (the line does not use any slag). They are fed by forklifts and fed in batches through belts into the cupolas.
2. Cupola system
As the raw materials are filled into the cupola, the basalt and dolomite gradually melt. The molten rock liquid flows out through the siphon on the cupola’s side and through the adjusted runner onto the roller of the spinning machine.
3. Spinning system
Under a strong spinning force, the molten rock liquid is blown by a roller into a fuse with a diameter of 3-5 microns. Meanwhile, phenolic resin, a hydrophobic agent, and dustproof oil are prepared by the glue spraying system and are ejected from the nozzle around the roller of the spinning machine. Then they are evenly sprayed on the surface of the fiber.
4. Drum system
The fiber, blown by the spinning machine from the wind system, falls into the drum through the chamber. With the rotation of the drum, the fiber is continuously absorbed by negative pressure on the grid on the side of the cotton accumulation drum, forming a blanket.
5. Pendulum and forming system
Once the blanket is between the pendulum’s two belts, and it has fallen from the top under two belts, the pendulum swings back and forth along the direction of the blanket. In this way, the blanket is put on the molding belt layer by layer. By adjusting the speed of the molding belt, the rock wool blanket can be formed with varying densities.
6. Pleating system
After entering the pleating machine, each layer of rock wool blanket becomes folded through the relative movement of the lower roller on the pleating machine, forming an m-shaped structure and increasing the strength between the layers.
7. Curing system
The rock wool blanket enters the curing oven from one end, and after being compressed and heated by the curing oven in sections, it comes out from the other end of the curing oven.
8. Cooling system
After coming out of the curing oven, the rock wool blanket has a high temperature and needs to be pumped to cool down. After cooling, it can be further processed.
9. Longitudinal cutting
The cooled rock wool board is cut into different widths and lengths as required.
10. Trimming and scrap crushing
The edge of the rock wool board coming out of the curing oven is uneven and needs to be cut off and trimmed. The cut edge falls into the pulverizer and the pulverized powder is sucked into a dust collecting system.
11. Crosswise cutting
A dust free saw is then used to cut the rock wool board into the required sizing through a crosswise cutting procedure. Similarly, there is suction around the cutting saw that inhales dust generated by cutting the board.
12. Rock wool panel producing process- Stacking
The cut rock wool board needs to be folded into a pile after packaging. The automatic stacking machine can manage the automatic stacking of the rock wool board.
13. Rock wool panel producing process- Packaging
PE film covers the stacked rockwool board by the thermal shrinkage packaging machine. It then enters the heating oven, wind blowing, undergoes PE film contraction, leaving a pack of rockwool board that is well wrapped up.
