Project Overview

pH adjustment aims to stabilize the process medium within a required pH range to meet process requirements. Applications include electroplating bath pH control, metallurgical flotation slurry pH control, and chemical process mother liquor pH control.

Project Profile

• Case Type: Chemical Industry
• Application: Automatic pH-controlled chemical dosing
• Instrument Configuration: Online pH Transmitter, Electromagnetic Flowmeter, Pressure Transmitter

Project Advantages

1. Precision Dosing Pump: Diaphragm dosing pump monitored by a microprocessor. Automatically adjusts chemical addition based on 4–20mA feedback from pH analyzers. Capable of precise acid/base dosing and automatic start/stop according to liquid level.
2. pH Controller: Provides stable process control with multiple modes (P, PI, PD, PID). Converts pH measurement signals to control dosing pumps, maintaining target pH values. Real-time pH display with feedback-controlled pump operation.
3. Industrial pH Electrode: High-precision, reliable glass electrode, resistant to high/low pH and temperature variations. Accurately transmits measurement signals to the pH controller.
4. Liquid Level Control: Monitors chemical dosing tank levels and sends alarms when chemicals run low, stopping pumps automatically.
5. Chemical Dosing Tanks: Dedicated storage tanks with pump mounting positions, capacities 100L–5000L.
6. Automatic Control System: Composed of PLC, frequency converters, touchscreens, etc. PID algorithms process pH signals to achieve stable pH control.

Summary

pH adjustment ensures treated water meets required ranges, crucial in water treatment processes to optimize chemical usage. The system is widely applied across electroplating wastewater, pigment production, textile wastewater, cooling water, and chemical processes. The automatic pH-controlled dosing system detects pH online and adjusts chemical dosing precisely according to measured signals, ensuring stable and reliable operation.