Single Screw Extruder for Ceramic Membrane
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The single screw extruder for ceramic membranes is used to make ceramic membrane plates.
Ceramic Membrane Plate
Ceramic membrane plates are a hyper filtration membrane that is able to remove impurities like suspended solids and microorganisms in liquid. Ceramic membrane plates feature a 3-5 times longer working life, 50% lower chemicals / energy consumption and 50% lower maintenance cost when compared to polymetric membranes.
- Products after extrusion process
- PM-HIP extrusion screw
- Extrusion screw with functional coatings
Details of design
- Motor / Reducer
We use the high torque variable frequency motors (VFDs) with a cooling unit for our one-stage and two-stage extruders. The motors can save energy and function in a stable manner, ensuring the extruders feature a long service life.
In addition, our compact design ensures these machines save space. - Torque distribution system
We use high quality Japan NSK bearings as the radial bearing. - Gears
The gears are made of 20CrNi2MOA，HRC58-62 metal, which features an extraordinarily high abrasion resistance. - Extrusion Barrel
A water-cooling system is used outside the barrel, ensuring the machine works smoothly. - Control Cabinet
The touch screens and PLC (Programmable Logic Controller) have been put in the control cabinet.
Construction Drawing
Parameters
| Items | One Stage Compacting Extruder | Two stages compacting forming extruder |
| Hopper | 304 stainless steel, manual feeding | Vacuum feeding |
| Main Motor | 11 kw | 18.5 kw |
| Diameters (mm) and materials of the Screws | ⌀117.5, Quench hardened martensitic stainless steel | ⌀117.5, Quench hardened martensitic stainless steel |
| Screw length / diameter (L/D) | 8 | 10 |
| Screw Speed (rpm) | 5～30 rpm | 5～30 rpm |
| Ultimate screw pushing force (Mpa) | 10 Mpa | 18 Mpa |
| Max. screw torque at highest speed (Nm) | 6600 | 11000 |
| Power of variable frequency motors | 11 kw | 18.5 kw |
| Vacuum exhaust system | Germany Busch motors, Motor Power 0.75 kw，Ultimate Vacuum 0.1 hPa (mbar), Max. speed 1800 rpm, Max. Pumping rate 30 m3/h | |
| Temperature control type of the barrel and the screw | Water circulation cooling outside the barrel | Water circulation cooling outside the barrel and inside the screw |
| Range of temperature control of the barrel and the screw | 10℃~100℃ | 10℃~100℃ |
| Range and accuracy of temperature of raw materials | 50℃±0.2 | 50℃±0.2 |
| Levels of barrel temperature | 3 different levels | 5 different levels |
| Back pressure of raw materials | 3 Mpa | 15 Mpa |
| Screw hight of center (mm) | 1700 | 1100 |
| Output of Al2O3 with density of 4.0 g/cm3 | 160 kg~280 kg/hr | |
| Total installed capacity (kW) | 41 | |
| Power Consumption under normal operation (%) | 80% | |
| Dimensional size (mm) | Length, 3500 × Width, 1100 × Height 2000 | |
| Whole weight of the machine (kg) | 2500 | |
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