The principle of the automatic quantitative packaging scale for seedling substrate fertilizer

The principle of the automatic quantitative packaging scale for seedling substrate fertilizer is based on dynamic weighing and automatic control technology. Through the coordination of sensors, control systems and mechanical devices, it achieves precise measurement, automatic packaging and closed-loop control of the process of substrate fertilizer.

I. Core Principle of the Automatic Quantitative Packaging Scale for Seedling Substrate Fertilizer

Adopting the "dynamic weighing + closed-loop control" technology, rapid and accurate packaging is achieved through three-level precision control, and the entire process error can be controlled within ±0.2%.

Ii. Work Process

1. Primary coarse feeding (fast)

Large-diameter spiral high-speed feeding (3-5kg/s)

Fill 80% of the target weight

2. Secondary fine feeding (slow)

Switch to small screw low-speed feeding (0.5-1kg/s)

Fill up to 99% of the target amount

3. Three-level micro-compensation (standard)

Pneumatic gate point feeding (50-100g per time)

Reach 100% of the target value

Iii. Technical Parameters

Indicators: Ordinary packaging scale: Special scale for substrate fertilizer

Weighing speed: 6-8 seconds per pack; 10-12 seconds per pack

Applicable bulk density: ≥0.5g/cm³, 0.2-0.4g/cm³

Arch breaking frequency: None: 15-20 times per minute

Temperature difference compensation: ±5℃ automatic calibration

Iv. Typical Application Scenarios and Advantages

In the field of agricultural seedling cultivation: In vegetable and flower seedling bases, automatic quantitative packaging scales can precisely control the mixing ratio of substrate fertilizer and seeds, ensuring uniform nutrient distribution in each seedling tray and enhancing the germination rate.

Chemical and feed industry: Suitable for quantitative packaging of granular and powdered materials, such as fertilizers and feed additives, meeting the production requirements of high speed (480-600 packs per hour) and high precision (±0.2%).

Core advantages: Compared with manual packaging, the automatic quantitative packaging scale can reduce material loss by more than 30%, increase production efficiency by more than 50%, and at the same time avoid product quality problems caused by human errors.