EPS pre expander machine
Main Features
1.Feeding, expander, filtrating, crushing, transport to silos automatically
2.With first and second expansion, the first time filling adopt frequency conversion feeding device, guarantee the stability of feeding
3.Uniform foaming, foam density range is 6-35g/l
4.Material barrel inside and outside, fluidized bed dryer made of stainless steel, in order to maintain the durable use and stable performance
5.Electrical protection device
6.Adopt Japanese reducing valve
Technical Data
| Item | Type | |||
| PSY70 | PSY90 | PSY120 | ||
| Expansion Chamber | Diameter | Φ700mm | Φ900mm | Φ1200mm |
| Volume | 0.6m3 | 1.2m3 | 2.2m3 | |
| Useable Volume | 0.4m3 | 0.8m3 | 1.5m3 | |
| Steam | Entry | DN20 | DN25 | DN40 |
| Consumption | 80-100kg/h | 100-150kg/h | 150-200kg/h | |
| Pressure | 0.6-0.8MPa | 0.6-0.8MPa | 0.6-0.8MPa | |
| Compressed Air | Entry | DN15 | DN20 | DN20 |
| Pressure | 0.6-0.8MPa | 0.6-0.8MPa | 0.6-0.8MPa | |
| Drainage | Condensate | Φ20mm | Φ20mm | Φ20mm |
| Throughput | 15g/l | 100kg/h | 150kg/h | 250kg/h |
| 20g/l | 120kg/h | 200kg/h | 300kg/h | |
| 25g/l | 150kg/h | 250kg/h | 410kg/h | |
| 30g/l | 200kg/h | 300kg/h | 500kg/h | |
| Material Conveying Line | Φ150mm | Φ150mm | Φ150mm | |
| Power | 8.93Kw | 9.73Kw | 14.83Kw | |
| Density | First expansion | 12-30g/l | 12-30g/l | 14-30g/l |
| Second expansion | 8-11g/l | 8-11g/l | 8-13g/l | |
| Overall Dimension | L*W*H | 4700*2660*2600 | 4700*2930*3200 | 4905*4655*3250 |
| Weight | 1300kg | 1500kg | 1800kg | |
| Room Height Required | 3000mm | 3000mm | 3000mm | |
Pre-foaming process
The EPS raw material is conveyed as granules to the pre-expander, where it is heated by means of wet steam. The hot steam softens the polystyrene beads and activates the blowing agent dissolved in them. This evaporates and causes the softened beads to expand.The bulk density can be adjusted by the weight of the raw material and the foamed volume.
The EPS beads pre-expanded are then cooled and stabilized in a fluidized bed on an air cushion before being conveyed by blower via a rotary feeder into the silos.
Products
eps raw material
eps expansion
Eps Foam Beads
