Technical data
In the past, according to the actual needs of production, in order to increase the granulation production capacity, the usual methods were to increase the number of cutters and increase the number of revolutions of the pelletizer to achieve. When these measures still can not meet the production needs, it is necessary to consider rebuilding the template, that is, “template expansion”.
The so-called capacity expansion is based on the fact that the template does not change the original installation geometry, by increasing the number of holes and aperture of the template to increase production, increase the opening rate of the template, and reduce the resistance of the template. Generally, if the number of holes is increased by 10%, the pressure can be reduced by 5%; if the hole diameter is enlarged by 10%, the pressure of the template can be reduced by more than 10%; by increasing the number of holes and the number of cutters, the specific energy consumption can be reduced by 0.008kw.h / kg The specific energy consumption of general polyolefins is 0.14-0.26kw.h / kg.
| Name | Transformation of the former | After transformation |
|---|---|---|
| Product brand | PP(T30S) | PP(T30S) |
| Granulator model | ZSK-170 | ZSK-170 |
| Host motor rated power | 1500 KW | 1500 KW |
| Template specifications | Φ555X80.5 | Φ555X92 |
| Inside and outside diameter of the pelletizing belt | Φ336XΦ244X3 | Φ342XΦ238X3 |
| Number of discharge holes | 450 | 590 |
| Outlet diameter | Φ2.6mm | Φ2.6mm |
| Heat tracing medium | Thermal oil | Thermal oil |
| Tracing in and out method | Three in and three out | Three in and three out |
| Granulating knife specifications | 102*25*12（Common shape） | 110*25*12（Edge boss shape） |
| Number of pelletizing knives | 10 | 10 |
| Granulating belt material | Silicon carbide | Metal composite ceramics（Nickel chromium titanium carbide
） |
| Yield | 56,000 tons / year, 7 tons / 1 hour | 68,000 tons / year, 8.5 tons / 1 hour |
| Specific energy consumption | 0.16kWH / kg | 0.142-0.147kWH/kg |