VEGETABLE OIL EXTRACTION EQUIPMENT WITH CAPACITY OF 100 TONS/DAY (2024 modification) (CHINA)
In 2023-2024, a deep modernization of the entire line of extraction equipment for extracting vegetable oil from oilseed crop meal was carried out, which significantly improved their technological efficiency and economic performance.
The main methods of obtaining vegetable oil are pressing and extraction. The common preparatory stages for both methods are cleaning, drying, hulling (destruction) of seed husks (sunflower, soybeans, cotton, and others) and separating it from the kernel.
After this, the seed kernels or seeds are crushed, resulting in the so-called mint. Before pressing, the mint is heated in roasters with stirring and moistening. The fried mint - pulp - is pressed in screw presses.
The completeness of oil extraction from the solid residue - cake - depends on pressure, the thickness of the pressed material layer, oil viscosity and density, pressing duration and a number of other factors.
Oil extraction is carried out in special apparatus - extractors - using organic solvents (most often extraction gasolines). As a result, a solution of oil in a solvent (so-called miscella) and a defatted solid residue moistened with a solvent (meal) are obtained.
The solvent is distilled from the miscella and meal in distillers and toasters, respectively. The meal of the main oilseed crops (sunflower, cotton, soybeans, flax and others) is a valuable high-protein feed product.
The oil content in it depends on the structure of the meal particles, the duration of extraction and temperature, the properties of the solvent (viscosity, density), and hydrodynamic conditions.
According to the mixed production method, preliminary oil removal is carried out on screw presses (so-called pre-pressing), after which oil is extracted from the cake.
When processing soybeans into meal and oil, the so-called direct extraction method is used, in which the use of oil presses is excluded at the preparatory stage.
Watch a video showing the main equipment of the upgraded extraction line:
VEGETABLE OIL EXTRACTION LINE 100 T/DAY BY SUNFLOWER CAKE. 2024 MODIFICATION.
Raw material requirements and technical parameters:
Raw material requirements:
- Cake oil content: 8～16%
- Moisture: 5～7%
- Percentage of fines (1 mm screen): ≤5%
Technical parameters:
- Circulating water: maximum hardness less than 10 oG
- Pressure 0.3 MPa(G)
- Temperature ≤30℃
- Chlorine ≤20PPm
- Saturated steam
- Pressure 0.6 MPa(G)
- Compressed air of pneumatic systems
- Temperature ≤40℃
- Pressure 0.7 MPa(G)
- Oil content 1 mg/m3 (max.)
- Dew point -20℃
- Power source
- Supply voltage (3 phases) 380v ±5%
- Supply (2 phases) 220v ±5%
- Supply (2 phases) 24AC/DC
- Frequency 50Hz±0.5Hz
- Materials, specification:
- Hexane: (GB17602-2018)
- Concentration: ≥80%
- 5% hexane distillation: 66 ~ 67.9 ℃
- 95% hexane distillation: 68.5 ~ 71 ℃
- Non-volatile substances:(mg/100 ml) ≤1
- Density: 660 ~ 680 kg/m3
- Odor: no residual odor
- Paraffin: Food grade
- Molecular weight: 290 ~ 330
- Viscosity: 50/60SSU (38 ℃); 33/37SSU (93 ℃)
- Density: 0.827/0.840 (19 ℃); 0.821/0.833 (25 ℃)
- Boiling point: initial 268 ~ 274 ℃; Final 316 ℃
- Flash point: ≥178 ℃
- Ignition temperature: 188 ℃
- Total benzene: 10.0 ppm max
- Total sulfur: 5.0 ppm max
- Hexane: (GB17602-2018)
Final product parameters and consumption:
| Parameter | Quality | Note |
|---|---|---|
| Moisture and volatile substances | ≤0.2% | Extraction oil |
| Hexane residue | ≤80PPm | |
| Sunflower oil outlet temperature | ≤50℃ | |
| Residual oil content in meal | ≤1.0% | Meal |
| Moisture | ≤12.0% | |
| Hexane residue (or flash point of extraction oil in a closed crucible: - 225 deg. by Martens-Pensky method;) | ≤500PPm |
| Consumption parameters | |||
|---|---|---|---|
| Parameter | Unit | Note | |
| Power consumption | kW per 1 ton of sunflower meal | ≤19.0 | (including external auxiliary equipment) |
| Steam, tons | per 1 ton of sunflower cake | ≤0.26 | |
| Water, m3 | per 1 ton of sunflower cake | ≤0.50 | (including circulating water losses) |
| Hexane, kg | per 1 ton of sunflower cake | ≤2.20 | |
SPECIFICATION OF EXTRACTION LINE 100 T/DAY BY SUNFLOWER CAKE. 2024 MODIFICATION.
| No | Name | Electric power (kW) | Qty (pcs) | Note |
|---|---|---|---|---|
| 1 | MAIN EQUIPMENT OF EXTRACTION WORKSHOP | 83.90 | 47 | |
| 2 | AUXILIARY EQUIPMENT OUTSIDE THE EXTRACTION WORKSHOP | 56.90 | 6 | |
| 3 | ELECTRICAL EQUIPMENT | 1 set | Standard GGD control cabinet | |
| 4 | ELECTRICAL INSTALLATION MATERIALS | 1 lot | Wires, cables, bridges, pipelines, explosion-proof connections, etc. Except for extraction workshop lighting | |
| 5 | INSTALLATION MATERIALS | 1 lot | Pipes, flanges, pipeline fittings, etc. | |
| 6 | TOOLS AND VALVES | 1 set | ||
| 7 | PLC PROGRAMMABLE LOGIC CONTROLLER | 1 set | Single-point self-control with 11 control points | |
| 8 | FINISH PAINTING AND INSULATION | Supplied by customer | ||
| TOTAL: | 140.8 | |||
EQUIPMENT SPECIFICATION OF SUNFLOWER CAKE EXTRACTION LINE 100 TONS/DAY
| EQUIPMENT SPECIFICATION OF SUNFLOWER CAKE EXTRACTION LINE 100 TONS/DAY |
|||||||
|---|---|---|---|---|---|---|---|
| Main equipment of extraction workshop | |||||||
| No | Fig. | PHOTO | DESCRIPTION | Qty | Power kW/pc | Power kW/total | NOTE (material) |
| 1 | V216 | Steam distributor | 1 | Carbon Steel (CS)-8mm | |||
| 2 | V203 | Feeding Storage Bin | 1 | CS-5mm | |||
| 3 | L201, L204, L206 |  |
Scraper conveyor | 3 | 4.00 | 12.00 | CS-6/8mm, equipped with ball chain, wear-resistant polymer scraper, equipped with hard gear reducer, explosion-proof motor |
| 4 | L202, L205 | Sealed Screw Conveyor | 2 | 2.20 | 4.40 | CS-6mm, equipped with hard gear reducer, explosion-proof motor | |
| 5 | M202 |
|
BMJP460(rotary extractor). Optional: Frame Chain Extractor (usually used in lines from 200 tons) |
1 | 2.20 | 2.20 | Rotary extractor: CS-6/8/14mm, SS-fixed bar, frequency control, equipped with hard gear reducer, explosion-proof motor |
| 6 | M203 |  |
Toaster | 1 | 32.20 | 32.20 | CS-10/12/14mm, equipped with hard gear reducer, explosion-proof motor |
| 7 | C201 | Fan | 1 | 5.50 | 5.50 | CS | |
| 8 | V207 | Cyclone | 1 | CS-5mm | |||
| 9 | V204 | 1# Miscella Filter | 1 | CS-5mm | |||
| 10 | V205 | 2# Miscella Filter | 1 | CS-5mm | |||
| 11 | V209 | Wet Meal Powder Catcher | 1 | CS-6mm | |||
| 12 | V208 |  |
Hot Water Tank | 1 | CS-6mm | ||
| 13 | V210 | Miscella Tank | 1 | CS-6mm | |||
| 14 | E202 |
|
1# Evaporator | 1 | CS-8mm, Stainless Steel (SS) -array pipe-2mm | ||
| 15 | E203 | 2# Evaporator | 1 | CS-6mm | |||
| 16 | T201 |
|
1# Disc Stripping Tower | 1 | CS-6mm, SS- disc | ||
| 17 | T204 | 2# Disc Stripping Tower | 1 | CS-6mm, SS- disc | |||
| 18 | V211 | Crude Oil Tank | 1 | CS-4mm | |||
| 19 | V201 | Miscella Buffer Tank | 1 | CS-5mm | |||
| 20 | E201, E204 |  |
Steam Heater | 2 | CS-4mm | ||
| 21 | E215 | Cooler | 1 | CS-4mm | |||
| 22 | V206 | Great Spray of Siphon | 1 | CS-5mm | |||
| 23 | E205, E206, E208, E209 |  |
Condensers | 4 | CS-6,8mm,SS-array pipe-1.6mm | ||
| 24 | V202 |  |
Solvent Turnover and Water-separating Tank | 1 | CS-6/4mm | ||
| 25 | T202, V214, P211, E211, E213, T203, V215, P210, P212, E212 | Exhaust Recovery Device | 1 | 4.4 | 4.4 | CS,SS | |
| 26 | P205A, P205B | Steam jet vacuum pump | 2 | CS | |||
| 27 | P203A, P203B, P203C, P203D, P203E, P203F | Miscella Circulation Pump | 6 | 1.5 | 9.0 | Cast iron pump head, copper impeller | |
| 28 | P201 | Miscella Circulation Pump | 1 | 2.2 | 2.2 | Cast iron pump head, copper impeller | |
| 29 | P202A, P202B | Fresh Solvent Pump | 2 | 3.0 | 6.0 | Cast iron pump head, copper impeller | |
| 30 | P204 | Hot water pump | 1 | 1.5 | 1.5 | Cast iron pump head, copper impeller | |
| 31 | P206, P207 | Oil Pump | 2 | 1.5 | 3.0 | Cast iron pump head | |
| 32 | P208 | Oil Pump | 1 | 1.5 | 1.5 | Cast iron pump head | |
| No | Fig. | PHOTO | DESCRIPTION | Qty | Power kW/pc | Power kW/total | NOTE (material) |
|---|---|---|---|---|---|---|---|
| 1 | L401 | Scraper Conveyor | 1 | 2.2 | 2.2 | CS, Supplied by customer | |
| Trestle | 1 | CS, Supplied by customer | |||||
| 2 | L402 | Scraper Conveyor | 1 | 2.2 | 2.2 | CS, Supplied by customer | |
| Trestle | 1 | CS, Supplied by customer | |||||
| 3 | V401A-B | Underground Solvent Storage 30m3 | 2 | CS, Supplied by customer | |||
| 4 | P401A/B | Solvent Pump | 2 | 1.5 | 3.0 | Aluminum alloy pump head,fluorine rubber impeller | |
| 5 | V402 | Cooling Tower 200m3/h | 1 | 5.5 | 5.5 | Carbon steel frame, FRP shell | |
| 6 | V403 | Circulating Water Tank 100m3 | 1 | Cement Tank, Supplied by customer | |||
| 7 | P402A/B | Circulating Water Pump | 2 | 22.0 | 44.0 | Cast iron pump head, copper impeller | |
| 8 | X401 | Lightning Arrester 25m | 2 | CS, Supplied by customer |
Delivery FOB Shanghai, PRC: within 6 months after receiving advance payment
Warranty period - 12 months from the date of commissioning.
Manufacturing: PRC
BASIC DESCRIPTION OF THE EXTRACTION WORKING PROCESS
1. General information
1.1 Solvent extraction line capacity: 100 t/day of cake.
1.2 Raw material quality: details see in the section "Raw material requirements and technical parameters".
2. Production process flow
2.1 General process flow diagram
2.2 Brief description of the technological process
The cake is directed to the extractor by means of a loading scraper conveyor and a sealed screw. The material circulates in the extractor from the feed port to the discharge port, in the process it is sprayed and mixed with miscella with decreasing concentration.
After wetting and final spraying with fresh solvent, the material is continuously fed to the meal discharge scraper conveyor through the drip drying zone. Miscella circulation is carried out by a circulation pump. Thick miscella is first freed from impurities in a special filtration tank for temporary storage of miscella, then after such purification it is pumped into the miscella tank. Fresh solvent (hexane) is pumped from the hexane circulation tanks by the fresh hexane pump and enters the extractor after preheating in the hexane heater. Free gas in the extractor is discharged to the condenser.
The meal moistened with miscella from the extractor is directed through a scraper conveyor and a sealed screw to the toaster. Direct and indirect steam is supplied to the toaster. Under the action of steam, the solvent is removed from the meal. The meal freed from miscella enters the scraper conveyor and is then sent to the meal warehouse by means of a discharge screw.
Initially, for solvent distillation, the miscella is directed to the first long-tube evaporator, in which part of the solvent (hexane) is removed from the miscella. This evaporated solvent enters the first evaporation condenser through the separation chamber. The miscella concentrated by the first evaporation condenser enters the second long-tube evaporator. The miscella additionally concentrated by the second long-tube evaporator enters the top of the disc stripping column, and then comes into contact with direct steam introduced from below to remove residual solvent. The mixed gas exiting from the top of the second long-tube evaporator and the disc stripping column enters the condenser for condensation of hexane residues. The solvent-free crude oil is pumped from the bottom of the stripping column to the crude oil tank, and then pumped out by a pump and sent to the subsequent processing line or to the final crude oil storage tank.
The condensate from all condensers enters the water separation tank, then the separated solvent is directed to the hexane circulation tank for further use in the technological process. The separated water enters the hot water tank. Direct steam is introduced into the bottom of the hot water tank to evaporate the residual solvent, and then drain the purified water through a hydraulic seal tank.
We supply independent extraction lines for low-oil crop cake with daily capacity of 50, 100, 200, 300 tons and above (up to 3000 tons)
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