Leading Manufacturer for Thermocol Molding Machine - SPY90-SPY120 Continuous Pre expander – DONGSHEN
Leading Manufacturer for Thermocol Molding Machine - SPY90-SPY120 Continuous Pre expander – DONGSHENDetail:
Machine Introduction
Inside EPS raw beads, there’s the blowing gas called pentane. After steaming, pentane starts to expand so the bead size also grows bigger, this is called expanding. EPS raw beads cannot be used to make blocks or packaging products directly, all beads need to be expanded first then make other products. Product density is decided during Preexpanding, so density control is done in Preexpander.
EPS Continuous Preexpander is functioned to expand EPS raw material to required density, machine works in continuous way both in taking raw material and discharging expanded material. EPS Continuous Pre-expander can do second and third expansion to get low density.
EPS Continuous Preexpander complete with Screw Conveyor, First and second expansion loader, Expansion Chamber, Fluidized bed Drier
EPS Continuous Preexpander is a kind of EPS Machine working with mechanical control. EPS raw material is first filled from screw conveyor to expansion loader. At the bottom of loader is the screw, to move material from loader to expansion chamber. During steaming, agitating shaft is moving constantly to make the material density even and uniform. Raw material move to chamber continuously, and after steaming, material level continuously move up, till the material level comes to same level of discharging opening port, then material will automatically flow out. The higher the discharge opening is, the longer the material stays in the barrel, so the lower the density is; the lower the discharge opening is, the shorter the material stays in the barrel, so the higher the density is. The control of the continuous pre-expanding machine is very simple. Whether the steam pressure is stable or not has a great influence on the density of expanding. Therefore, our continuous pre-expanding machine is equipped with a Japanese pressure reducing valve. In order to make the steam pressure in the machine more stable, we use the screw to feed the material at a uniform speed, and the uniform steam and uniform feed are as uniform as possible.
Technical Parameter
| Continuous Preexpander | |||
| Item | SPY90 | SPY120 | |
| Expansion chamber | Diameter | Φ900mm | Φ1200mm |
| Volume | 1.2m³ | 2.2m³ | |
| Usable volume | 0.8m³ | 1.5m³ | |
| Steam | Entry | DN25 | DN40 |
| Consumption | 100-150kg/h | 150-200kg/h | |
| Pressure | 0.6-0.8Mpa | 0.6-0.8Mpa | |
| Compressed Air | Entry | DN20 | DN20 |
| Pressure | 0.6-0.8Mpa | 0.6-0.8Mpa | |
| Drainage | Entry | DN20 | DN20 |
| Throughput | 15g/1 | 250kg/h | 250kg/h |
| 20g/1 | 300kg/h | 300kg/h | |
| 25g/1 | 350kg/h | 410kg/h | |
| 30g/1 | 400kg/h | 500kg/h | |
| Material conveying line | DN100 | Φ150mm | |
| Power | 10kw | 14.83kw | |
| Density | First expansion | 12-30g/l | 14-30g/l |
| Second expansion | 7-12g/l | 8-13g/l | |
| Overall dimension | L*W*H | 4700*2900*3200(mm) | 4905*4655*3250(mm) |
| Weight | 1600kg | 1800kg | |
| Room height required | 3000mm | 3000mm | |
Case
Product detail pictures:
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We rely upon strategic thinking, constant modernisation in all segments, technological advances and of course upon our employees that directly participate inside our success forLeading Manufacturer for Thermocol Molding Machine - SPY90-SPY120 Continuous Pre expander – DONGSHEN, The product will supply to all over the world, such as: Malta, UAE, panama, Qualified R&D engineer might be there for your consultation service and we will try our best to meet your requirements. So you should feel free to contact us for inquiries. You'll be able to send us emails or call us for small business. Also you are able to come to our business by yourself to get further knowing of us. And we are going to surely present you with the best quotation and after-sale service. We're ready to build stable and friendly relations with our merchants. To achieve mutual success, we'll make our best efforts to build a solid co-operation and transparent communication work with our companions. Above all, we're here to welcome your inquiries for any of our merchandise and service.
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