Peanut Processing Line

Peanut Processing Line

As global demand for peanut products continues to expand, Hebei Julite Sorting Technology Co., Ltd. presents its advanced Peanut Processing Line. This turnkey solution is engineered to deliver reliably clean kernels, ready for snack, confectionery, butter, oil, and ingredient applications.

End‑to‑End Process Description

1. Raw Peanut Intake & Preliminary Cleaning
   Peanuts are introduced via an adjustable feed conveyor into a vibrating pre‑cleaner. Large debris—stones, plant material, and clods—is expelled through a perforated screen, while an aspirator removes dust and lightweight contaminants.

2. Magnetic Separation & Destoning
   A magnetic head extracts any ferrous particles. The subsequent destoner unit uses differential airflows and vibrating decks to remove stones and dense impurities, preserving the quality of the kernels.

3. Shelling Section
   Peanuts move to an impact sheller or abrasive sheller—selected according to kernel variety and shell characteristics. Adjustable shelling discs or rings gently rupture shells, maximizing kernel recovery while minimizing breakage. Shell fragments and intact kernels pass through a pneumatic separator; shells are diverted to waste conveyors, and kernels continue downstream.

4. Kernel Drying and Cooling
   Following shelling, kernels may carry residual moisture from the shelling process. A fluid‑bed dryer reduces moisture to the target range (typically 2–5%), using recirculated warm air to maintain gentle drying and uniform temperature distribution. A cooling section stabilizes kernel temperature before further handling.

5. Flotation or Density Grading
   Depending on client requirements, the line can include a water‑flotation tank that discards hollow or broken fragments, or an air‑gravity separator that classifies kernels by density. These options ensure that only sound, intact peanuts advance to the next stage.

6. Blanching and Skin Removal (Optional)
   For blanched peanut production, a steam‑blancher unit scalds the skin, enabling mechanical rollers or friction chambers to separate the testa. A subsequent aspiration system evacuates detached skins.

7. Optical Sorting and Metal Detection
   High‑speed optical sorters inspect each kernel for discoloration, mold, insect damage, and foreign matter. Air jets precisely eject any defective pieces. A final metal detector ensures that no ferrous or non‑ferrous contaminants remain before packaging.

8. Final Grading and Packaging
   Size grading screens can split kernels into multiple size fractions, supporting diverse end products such as snack mixes or peanut butter milling. Accurate multi‑head weighers and bagging machines package peanuts into bulk bags or retail pouches. All packaged lots pass through a last‑stage metal detector for added safety.

Core Advantages

• Scalable Capacities: Systems range from pilot‑scale (1 t/h) to large industrial plants (10 t/h and above), with modular expansions to accommodate future growth.

• Operational Efficiency: Variable‑frequency drives regulate power draw, and integrated heat‑recovery circuits reduce energy costs. Centralized lubrication points and slide‑out modules simplify routine service.

• Quality Assurance: Inline moisture probes, laboratory‑grade aflatoxin monitoring integration, and continuous data logging uphold rigorous safety standards.

• User‑Friendly Controls: A centralized PLC/HMI panel manages all functions—cleaning intensity, shelling pressure, drying temperatures, and sorting thresholds. Remote monitoring and diagnostics enable timely support and minimal unplanned downtime.

• Hygienic Construction: Food‑grade stainless‑steel contact parts, sanitary bearings, and dust‑tight enclosures maintain strict hygiene compliance and ease of sanitation.

Typical Uses

• Roasted and Salted Snacks: Uniform kernels ensure even roasting and seasoning distribution.

• Peanut Butter and Confectionery Ingredients: Consistent kernel size and moisture content optimize milling performance and product stability.

• Peanut Oil Extraction: Clean, intact kernels enhance pressing efficiency and oil clarity.

• Food‑Ingredient Production: High‑quality peanut flour and meal for bakery, beverage, and protein supplement applications.

Hebei Julite Sorting Technology Co., Ltd. provides complete project services—including site layout, foundation design consultation, installation supervision, operator training, and ongoing technical support—to ensure each Peanut Processing Line delivers reliable performance and meets business objectives.