LS/T 3524-1995 in English
VALIDGeneral Technical Specifications for Flat-turn Screen Sieve for Rough Grain
- Issued on:1995-02-15
- Implemented on:1995-10-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$117.00
Introduction
Standard Overview
SB/T 10245-95 is a rice milling machinery industry standard issued by the Ministry of Domestic Trade in 1995. It systematically stipulates the technical requirements, test methods and inspection rules for the rotating rice-rough separation screen. This standard is applicable to special equipment for the rice-rough separation process in rice processing.
Core Technical Indicators
| Project | Rectangular Screen | Trapezoidal Screen | Detection Method |
|---|---|---|---|
| Yield per Unit Area (kg/m²) | ≥830 | ≥1100 | Actual Measurement of Process |
| Net Rough Content (Grains/kg) | ≤40 | Sampling Weighing | |
| Roughness Content of Hulled Grain (%) | ≤10 | Specific gravity separation method | |
Mechanical performance requirements
Noise control:Depending on the type of reduction device, V-belt transmission ≤80dB(A), gear transmission ≤85dB(A). During the test, background noise correction shall be performed according to the method in Appendix A.
Temperature rise limit:Bearing temperature rise ≤30℃, gearbox oil temperature ≤70℃, semiconductor point thermometer shall be used for multi-point detection.
Dynamic balance:The mass error of the balance block shall be controlled within ±1% to ensure that the screen body operates without sweeping.
Quality control of key components
- Sieve assembly: The joint tightness of plate components is ≤0.15mm, and the tension of the screen should comply with the GB 5331 wire mesh standard
- Frame assembly: The flatness of each support point reaches GB1184 10-level accuracy, and the center distance error is ±0.15mm
- Anti-corrosion treatment: The thickness of non-decorative paint film is ≥60μm, and the salt spray test of electroplated parts is ≥48 hours
Implementation suggestions
1. Process adaptation: It is recommended to use the equipment when the rice hulling rate is ≥75% and the moisture content is ≤14.5%, which can optimize the separation efficiency
2. Maintenance cycle: The tension of the screen should be checked every 200 hours of production, and the gearbox oil should be replaced every 500 hours
3. Upgrade direction: The current standard does not cover the technical parameters of variable frequency speed regulation. It is recommended that the new version add energy efficiency level classification
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