Laboratory Precision Rubber-Roll Paddy Husker
Fitted with dual independent variable-speed rubber rollers (150 mm diameter, 50 mm width).
Agricultural Engineering / Paddy Rubber-Roll Husking
FREE TO EXPLORELABORATORY 28 · AGRICULTURAL ENGINEERING
Paddy Rubber-Roll Husker Differential Speed & Head Rice Yield Recovery
Evaluate the dehusking efficiency, brown rice breakage percentage, and head rice recovery yield in an agricultural rubber-roll paddy husker as a function of roller speed differential. Explore interactive farm machinery simulation, irrigation hydraulics, and agricultural engineering telemetry.
FARM MACHINERY · SOIL & WATER · POST-HARVEST · STRUCTURES
Your virtual agricultural engineering laboratory.
DEHUSKING HULLING EFFICIENCY Η_H—
FIELD & TEST CELL TELEMETRY
Ready to sample with Speed Diff Δv = 2.5 m/s.
Adjust Speed Diff Δv, then execute agricultural trial.
Agricultural engineering telemetry and biosystems states are evaluated rigorously using 64-bit IEEE 754 precision. Residuals reflect ordinary least-squares regression across successive observations. Continuous data structures support high-fidelity agricultural and environmental modeling.
Agricultural assumptions and boundary condition limits
Rubber rolls soften as operational temperature rises (> 60°C), slightly shifting the effective friction coefficient and hulling efficiency during prolonged continuous runs. Evaluated using long-grain paddy rice (moisture 13.0% d.b.) at constant rubber roll clearance of 0.8 mm across differential speeds from 1.5 to 4.0 m/s.
Agricultural apparatus & field instrumentation sensors.
Independent Dual Variable-Frequency Motor Drives
Regulates fast roller and slow roller peripheral speeds independently with 0.1 m/s accuracy.
Aspirator Chaff Separation Column
Pneumatically winnows removed husks from brown rice and unhusked paddy discharge.
Paddy-Brown Rice Separator Tray (Laboratory Indented Cylinder)
Separates unhusked paddy from dehulled brown rice mechanically.
Laboratory Rice Sizing Sieve (1.4 mm Slot)
Separates whole head rice from broken kernels in accordance with ISO 7301 standards.
Precision Electronic Balance (0.01 g)
Weighs unhusked paddy, brown rice, broken rice, and husk fractions.
FOLLOW THE METHOD
A reason behind every step.
Evaluate the dehusking efficiency, brown rice breakage percentage, and head rice recovery yield in an agricultural rubber-roll paddy husker as a function of roller speed differential. Standardized parameter settings: 1.5, 2.0, 2.5, 3.0, 3.5, 4.0 m/s.
01
Roller Clearance & Durometer Inspection
Inspect rubber roller surfaces for even wear and hardness (Shore A 85 to 90 durometer). Set the roll clearance to exactly 0.8 mm using a thickness feeler gauge.
02
Initial Speed Differential Setup
Set slow roller peripheral velocity to v_slow = 8.0 m/s and fast roller to v_fast = 9.5 m/s, establishing an initial speed differential Δv = 1.5 m/s.
03
Standardized Batch Feeding
Feed exactly 1000.0 g of clean, graded paddy rice through the vibrating hopper over 60 seconds into the husking nip.
04
Aspiration & Fraction Sorting
Collect the discharge from the aspirator column, separating the three fractions: separated husks, dehulled brown rice (m_brown), and unhusked paddy (m_unhusked).
05
Hulling Efficiency & Breakage Calculation
Calculate dehusking hulling efficiency η_h = [m_brown / (m_brown + m_unhusked)] × 100%, and screen brown rice through the slotted sieve to determine broken rice percentage.
06
Speed Differential Stepping
Increment fast roller speed across five additional stages to achieve Δv = 2.0, 2.5, 3.0, 3.5, and 4.0 m/s, plotting η_h versus Δv to extract sensitivity b_h.
YOUR NOTEBOOK · 0 OBSERVATIONS
Turn measurements into agricultural engineering insight.
Points are your recorded observations. The solid regression line validates Paddy Rubber-Roll Husking mathematical scaling.
LINEAR REGRESSION FIT · y = mx + b
η_h = b_h · Δv + η_0 = 12.5000 · Δv + 42.0000
| # | Roller Peripheral Speed Differential Δv (m/s) | Dehusking Hulling Efficiency η_h (%) | Speed differential Δv (m/s) | Hulling efficiency η_h (%) | Remove |
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