Screw Press Technology in Fruit Pomace Dewatering
Screw Press Technology in Fruit Pomace Dewatering
The screw press, leveraging its specialized spiral extrusion mechanism, efficiently separates liquids from solids in fruit residues (apple pomace, grape marc, etc.). Renowned for its compact structure, high dewatering efficiency (60-80% moisture reduction), and low energy consumption (30-50% less than traditional methods), this equipment has become indispensable in fruit processing industries. Below is a professional breakdown of screw press workflows for pomace dewatering.
1. Pre-Treatment Phase
-Dry pomace: Add absorbents (rice husk, cellulose) at 5-10% w/w
-Wet pomace: Pre-drain free liquid via vibrating screens
2. Feeding System
-Real-time load monitoring sensors
3. Screw Press Dewatering Process
(2) Pressure gradient: 0.5-2.0 MPa (axial force: 5-20 kN)
(3) Retention time: 2-8 minutes (varies by pomace type)
(1) Primary Zone (Low Pressure: 0.5-1.0 MPa):
Removes 70-80% free liquid via gravity drainage
(2) Compression Zone (Medium Pressure: 1.2-1.6 MPa):
Extracts interstitial moisture through tapered screw design
(3) Discharge Zone (High Pressure: 1.8-2.0 MPa):
Expels bound water using conical counterweight
4. Output Management
4.1 Dehydrated Solids (50-70% moisture):
-Biofuel pellets (calorific value: 15-18 MJ/kg)
-Composting (C/N ratio optimization)
4.2 Liquid Fraction Recovery:
-Biogas feedstock (COD: 50-80 g/L)
Technical Advantages of Modern Screw Presses (Pomace Recycling)
Contact Our Screw Pressing Experts Today!
☎ +86- 17837359619
✉ ztxhmachinery@163.com
[China with Screw Press Solution!]
The screw press, leveraging its specialized spiral extrusion mechanism, efficiently separates liquids from solids in fruit residues (apple pomace, grape marc, etc.). Renowned for its compact structure, high dewatering efficiency (60-80% moisture reduction), and low energy consumption (30-50% less than traditional methods), this equipment has become indispensable in fruit processing industries. Below is a professional breakdown of screw press workflows for pomace dewatering.
1. Pre-Treatment Phase
- Crushing/Homogenization
- Moisture Conditioning
-Dry pomace: Add absorbents (rice husk, cellulose) at 5-10% w/w
-Wet pomace: Pre-drain free liquid via vibrating screens
2. Feeding System
- Utilize automated screw conveyors for continuous, uniform feeding (capacity: 1-10 T/h)
- Prevent blockages and pressure fluctuations with:
-Real-time load monitoring sensors
3. Screw Press Dewatering Process
- Operational Parameters:
(2) Pressure gradient: 0.5-2.0 MPa (axial force: 5-20 kN)
(3) Retention time: 2-8 minutes (varies by pomace type)
- Multi-Stage Compression:
(1) Primary Zone (Low Pressure: 0.5-1.0 MPa):
Removes 70-80% free liquid via gravity drainage
(2) Compression Zone (Medium Pressure: 1.2-1.6 MPa):
Extracts interstitial moisture through tapered screw design
(3) Discharge Zone (High Pressure: 1.8-2.0 MPa):
Expels bound water using conical counterweight
4. Output Management
4.1 Dehydrated Solids (50-70% moisture):
- Bulk density: 450-650 kg/m³
- Applications:
-Biofuel pellets (calorific value: 15-18 MJ/kg)
-Composting (C/N ratio optimization)
4.2 Liquid Fraction Recovery:
- Juice yield: 20-35% (pH 3.5-4.5)
- Filtration: 80-100 mesh screens for pectin/polyphenol retention
- Reuse potential:
-Biogas feedstock (COD: 50-80 g/L)
Technical Advantages of Modern Screw Presses (Pomace Recycling)
- Energy Efficiency: 0.5-1.2 kWh per ton processed
- Durability: 304/316L stainless steel construction with tungsten-carbide screw tips
- Automation: PLC-controlled systems with pressure feedback loops
Contact Our Screw Pressing Experts Today!
☎ +86- 17837359619
✉ ztxhmachinery@163.com
[China with Screw Press Solution!]
RECENT POSTS
Application
-
.jpg)
Vinasse Screw Press DewateringIn brewing, screw press dehydrators resolve key waste management challenges. Proprietary screw technology rapidly separates moisture from distiller’s grains, reducing water content for easier storage, transport, and reuse. Dehydrated grains serve as feed additives, boosting resource utilization and lowering costs.READ MORE > -
Pectin handling processPectin is a very important additive and can be used in all aspects of life, such as: yogurt, jelly, ice cream, health products, etc., can also be used in mediciREAD MORE >
More Application
