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  • Home
  • Company
    • The advantage
    • Powder handling specialist
    • Sales Network
    • Contact
  • Blog
  • News
  • Products
    • Mechanical Bin Activator
    • Big Bag Bulk Discharger
    • Flexible Screw Conveyor Type DMR
    • Screw Feeder Hopper
    • Injector Screw for moisture isolation
    • Slurry Tank
    • Pneumatic Conveying Systems
    • Loss in Weight Feeder
    • Slurry Eductor PAC Microsand
    • Slurry Metering System
    • Silo Retrofit
    • Bulk storage silos
    • Lime Slaker Unit
    • Sludge Mixer Class B
    • Sludge Screw Conveyor
  • Applications
    • Water & Wastewater
      • pH Control
      • Sludge Stabilization
      • Taste/Odor Control & Polluants Removal
      • Water Softening & Remineralization
    • Air Pollution Control
      • Dioxin & Furan Treatment
      • SO2, SO3 and Acid Gases
    • Industrial
      • Cement
      • Food Processing
      • Plastics
      • Pulp and Paper
      • Glass
  • Powders
    • Dry Chemicals & powders
    • Powdered Activated Carbon
    • Dry Cement
    • Hydrated Lime – Slaked Lime
    • Quicklime
    • Soda Ash
    • Sand
    • Polymers
  • Photos
  • Resources
  • Contact
  • US Locations

Loss in weight Feeders

Application :

For installations that require high powder metering accuracy, instantaneous flow rate image, or consumption totalization, Sodimate can provide a turnkey Loss in Weight system.

System for Powdered Activated Carbon

Loss in weight feeder

Double system for Soda Ash

Loss in weight feeders

Description :

The operation is simple, reliable, with a very high accuracy for industrial applications. This installation allows weight dosing from a buffer hopper placed under or near the silo to the injection point. This mechanism can also be applied to the Big Bag emptying stands.

The operation is as follows:
Regulation curve of a dosing unit
Phase 1: Filling.

The mechanical arch breaker and the feeder under the silo quickly fill the hopper up to the highest level.

Phase 2: Computing.

The Loss in weight installation begins and the product is discharged from the hopper. The weighing sensors measure a consistent flow rate that is compared to a setrate saved in the PLC given by an operator or an external signal. If the two rates are inconsistent, the PLC will increase or decrease the feeder’s speed to match until the two rates are exactly the same.

Phase 3: Refill.

Once the lowest possible level is reached, the loss in weight hopper must be refilled. The installation goes into blind phase, i.e. the electronics are no longer able to measure the input or output. The flowrate then switches to volumetric control according to a taring realized at the start-up. This blind phase must be as short as possible to not reduce the accuracy, that is why the feeding flowrate from the silo is about 10 times higher than the desired flow.

2 types of installation can be designed with weighting equipment:

  • Batch process with an accuracy on the quantity loaded but not on the flowrate
  • Continuous flowrate control accurate over time and quantity.

Advantages of the Loss in weight system

  • Reliable dry consumption
  • Automatic calibration
  • Low/High Level alarms
  • Scaling possible at any time
  • Troubleshooting mode
Download brochure
Loss in weight system
PID Example of a silo system that feed a Loss in Weight hopper
PID Example of a silo system that feed a Loss in Weight hopper

Over 9000
worldwide installations

Discover the competitive advantage
of our bulk handling systems
Products

Mechanical Bin Activator
Bulk Bag Discharger
Flexible Screw Type DMR
Hopper with Screw Feeder
Injector screw feeder
Slurry Tank
Pneumatic conveying systems
Loss in Weight Feeders
PAC Slurry Eductor
Slurry Metering System
Silo Retrofit
Bulk Storage Silos
Sludge Mixer Class B Stabilization
Lime Slaker
Applications

Dry Chemicals & Powders
pH Control
Sludge Stabilization with lime
Taste & Odor Control
Water Softening
Dioxin & Furan Treatment
SO2, SO3 and Acid Gases
Cement
Food Processing
Plastics

Specializes in providing high-quality and reliable bulk storage, discharge, metering, handling, and mixing systems tailored to your water or air treatment application needs.
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Sodimate Inc
2038 W Hubbard St
Chicago, IL 60612

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