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Pipeline in the liquor recovery process

Density
Pipeline in the liquor recovery process

Overview

The black liquor resulting from pulp cooking is regenerated and fed back into the digester. Liquor regeneration comprises several process steps. The processes take place at high temperatures and pressures; the media are aggressive and sometimes abrasive. Density measurement of the liquor in the pipelines is required for eco-friendly and energy-efficient process control.

Operating Conditions

Measuring Task
Density measurement
Measuring Point
Pipeline
Medium
Cooking liquor
Measuring Range
Density
Temperature
+120 … +130 °C
Pressure
+2 … +3 bar

Challenges

  • The liquor contains organic residual substances

Benefits

  • Reliable: Reliable operation despite extreme process conditions
  • Cost effective: Density measurement from the outside, without invasive changes to the pipe
  • User friendly: Optimized for the application, long-term maintenance-free measurement

Recommended Products

Recommended Sensors

VEGA MINITRAC 31
Industrial Sensors

MINITRAC 31

  • Simple retrofitting during production processes
  • Exact measuring results independent of process conditions
  • High plant availability through non-contact measurement

VEGA

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VEGA VEGASOURCE 81
Industrial Sensors

VEGASOURCE 81

  • Reliable shielding allows use without control sections
  • Reduced space requirement due to compact design with low weight

VEGA

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Wireless & Connectivity

VEGA PLICSMOBILE T81
Industrial Sensors

PLICSMOBILE T81

  • Monitor up to 15 sensors with one device
  • Pre-configured data transmission for quick setup
  • Self-sufficient installation without mains power supply

VEGA

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Software & Monitoring

VEGA Inventory System
Software

VEGA Inventory System

Inventory System

VEGA Inventory System (VIS) is a web-based software for real-time data acquisition, visualization, and logistics management of inventory levels in storage tanks and silos. Companies can manage their inventories proactively, ensuring greater flexibility in delivery schedules, expanding optimization options, and reducing stock discrepancies. Precise, real-time visualization of stocks allows deviations to be quickly identified, minimizing financial impact. The system combines reliable VEGA measurement technology for liquids and bulk solids with secure cloud-based or on-premises software, providing the basis for intelligent and strategic decisions for optimal inventory management. VIS supports both internal inventory monitoring and Vendor Managed Inventory (VMI) applications, where suppliers manage customer stock replenishment using real-time level data.

  • Real-time inventory monitoring across all connected storage locations via web browser or mobile app
  • Four visualization modes — Chart, Graphic, Map, and Trend — for comprehensive stock visibility
  • Color-coded traffic light status system (green/yellow/red) for instant stock level assessment

VEGA

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