Measurement Equipment in Fertilizer Production Line

Measurement Equipment in Fertilizer Production Line

Categories: Solutions, Uncategorized
Author: admin-nhat

The granulation drying process is a commonly used method in the production of NPK fertilizer, DAP fertilizer, etc. Below are the key steps in this process:

  • Raw Material Preparation: Mixing key ingredients main components such as Ammonia (NH₃), Phosphoric Acid (H₃PO₄), Potassium (KCl), Urea (CO(NH₂)₂), and Limestone (CaCO₃) in the desired ratio to create the appropriate fertilizer formulation (e.g., NPK 16-16-8, 20-10-10).
  • Preliminary Granulation: The mixed materials are fed into a Drum Granulator, where they form small granules with initial compression and size.
  • Granule Drying: The freshly formed fertilizer granules contain high moisture content (15-20%). A Rotary Dryer is used to reduce the moisture content below 5%, ensuring the required hardness and stability.
  • Cooling and Classification: The granules are cooled and screened to classify them according to standard size requirements.
  • Packaging: The qualified fertilizer granules are packaged for storage and transportation.

This process ensures uniform fertilizer quality, meeting nutritional and size standards.

Below is a compiled list of all the essential measurement equipment commonly used in the granulation drying production line. These instruments help control product quality, optimize operational processes, and save energy:

1.Temperature Measurement Equipment

  • Temperature Sensors (RTD, Thermocouple): Monitor temperature inside the dryer.
  • PID Temperature Controller: Automatically regulates the drying temperature.

2.Air humidity and Product Moisture Measurement Equipment

Air humidity Sensor: Measures the supply air to dryer.

Near-Infrared (NIR) Moisture Analyzer: Provides rapid, non-contact moisture measurement.

3. Pressure Measurement Equipment

Pressure Sensors and Pressure Gauges: to monitor pressure in the dryer, compressed air system, and exhaust fan.

4. Flow Measurement Equipment

Gas flowmeter: Measures the flow rate and totalizer of hot gas entering the drying chamber, compressed air, LPG/CNG, steam.

Liquid flowmeter: to measure the flow rate and totalizer of water, liquid-form materials (for dosing or controlling).

5. Level Measurement Equipment

  • Continuous Level Sensor: to monitor material levels in silos and mixing tanks.
  • High/Low Level Sensor: to alarm when the material is reaching empty or full level.

6. Rotational Speed Measurement Equipment

 Rotational Speed Sensor: to monitor the speed of the dryer.

7 .pH Measurement Equipment

Online pH Sensor: to measure the pH of raw materials or mixing solutions.

8. Oxygen and Emission Measurement Equipment

  • O Concentration Sensor: to monitor oxygen levels in the flue gas, to check and adjust for optimizing furnace efficient.
  • Concentration of Emission Gas Analyzer (CO, CO, NOx, SOx): to track the exhaust gases to environment.

9. Vibration Measurement Equipment

Vibration Sensor: Monitors the operational condition of machinery

 

10. Weight Measurement Equipment (Belt Scale)

  • Dynamic Belt Scale: Measures the mass of materials passing through the conveyor.
  • Load Cell: Measures the weight of materials in silos or storage tanks.

11. Pneumatic or Electrically Actuated Linear Control Globe Valve

  • Controls the flow of hot gas or steam in the dryer.

12. Data Logger

  • Used to collect, store, and monitor data from measurement sensors in the industrial system.

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