Comprehensive Bean Sorting and Cleaning Process

Beans Processing Line – Comprehensive Bean Sorting and Cleaning Process

Hebei Julite Sorting Technology Co., Ltd. designs bean processing lines capable of handling a wide spectrum of varieties, including kidney, black, pinto, navy, and mung beans. Key stages include:

1. Pre-Cleaning

• Vibrating screens remove oversized debris (soil clods, plant material).

• Aspirators strip away dust and light chaff.

• Magnetic separators extract metal traces.

2. Destoning and Gravity Separation

• Destoner units exploit density differences to kick out stones.

• Gravity tables further refine separation of undersized beans or fine dust.

3. Grading by Size

• Multi-deck screeners sort into up to four size categories in one pass, enabling tailored product lines (e.g., split peas vs. whole beans).

4. Optical Sorting

• CCD cameras detect size, shape, and color anomalies; air-jet ejection removes foreign seeds, broken hulls, or insect-damaged beans.

5. Moisture Conditioning

• Inline moisture probes measure residual moisture;

• Low-temperature dryers adjust levels to 12–14% for secure storage.

6. Packaging

• Bulk-bag fillers and retail bagging machines with integrated metal detection provide final safety checks.

• Automated weighers maintain ±0.5% accuracy.

Operators use a PLC-based HMI to monitor throughput, reject rates, and equipment health. Modular design permits easy reconfiguration for new bean types or capacity upgrades.