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IPTech

Pulper

Level
Pulper

Overview

Waste paper or pulp bales are transported on a conveyor belt to the pulper, where they are broken down by adding process water. A stirrer speeds up to separate fibers. Difficult process conditions exist in the pulper: falling bales cause severe pressure shocks, the stirrer creates vortexes. Besides that, foreign substances like wire, glass or sand enter the process along with the waste paper and have an extremely abrasive effect on the interior of the vessel. To ensure an automatic process flow, the level measuring system must establish the ratio of waste paper/pulp to process water. In addition, a possible jamming of the bales on the conveyor belt must be detected.

Operating Conditions

Measuring Task
Level measurement and blockage detection
Measuring Point
Pulper, conveyor belt
Medium
Waste paper/pulp
Measuring Range
4 m
Temperature
+20 … +40 °C
Pressure
0 … 0 bar

Challenges

  • Pressure surges, abrasion, vortex formation

Benefits

  • Reliable: Prevents jamming, thus ensuring a smooth automated process
  • Cost effective: Enables optimal ratio of pulp/waste paper to process water
  • User friendly: Wear and maintenance-free thanks to non-contact measurement

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