K-PATENTS® DD-23 DIRECTIONAL CONTROL SYSTEM

K-PATENTS® DD-23 Directional Control System

Product Overview

The Vaisala K-PATENTS® DD-23 is an advanced digital directional control system designed to monitor and control solid concentration levels in industrial production processes, particularly within the pulp and paper industry. It ensures the safe operation of recovery boilers by detecting and responding to low solids concentration conditions, thereby preventing serious incidents.

Technical Specifications

• System Configuration:

  • Two SAFE-DRIVE PR-23-SD refractometer sensors installed in series on the main pipeline.

  • Two transmitter indicators.

  • One directional control unit integrated within the control panel.

• Process Connections:

  • SAFE-DRIVE isolation valves for pipe sizes from 2” to 24”.

  • Suitable for both horizontal and vertical pipe installations.

• Communication and Monitoring:

  • Remote monitoring and event logging via Ethernet.

• Safety Standards:

  • Complies with BLRBAC (Black Liquor Recovery Boiler Advisory Committee) safety recommendations for recovery boiler operation.

Key Features

• Real-time monitoring – Continuously tracks solids concentration to detect abnormalities in real time.
• Automated alerts and control – Activates visual and audible alarms when concentration drops below safety thresholds and redirects flow to prevent accidents.
• Easy maintenance – Sensor removal and replacement can be performed without interrupting the process.
• User-friendly interface – LCD screen clearly displays operational status, alarms, and system information.

Benefits

• Enhanced safety – Early detection and response to low solid concentrations helps prevent critical incidents.
• Process optimization – Accurate control reduces waste and boosts production efficiency.
• Lower maintenance costs – Durable and serviceable design minimizes downtime and operational expenses.
• Standards compliance – Meets industrial safety standards, especially in pulp and paper applications.

Applications

• Pulp and paper industry – Monitoring solids concentration to ensure safe recovery boiler operation.

• Chemical industry – Solid concentration control in various chemical production processes.

• Food and beverage industry – Monitoring concentration levels during food and beverage manufacturing.

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Reference link: https://www.vaisala.com/en/products/instruments-sensors-and-other-measurement-devices-instruments-industrial-measurements/liquid-concentration/process-refractometer-dd-23