|
| |
CyboEye pH Soft-Sensor and MFA pH Control Solution |
| |
Problem Statement
Many industrial pH applications operate under harsh conditions, including corrosive chemicals, high temperatures, and process streams containing solids and fine particulates that can cause sensor fouling, coating, or abrasion.
For instance, in zinc refineries, a leaching process uses acids to dissolve zinc from its ore. Industrial pH sensors are used to monitor and control such processes, but require frequent cleaning and calibration. Poor pH measurement and control can result in excessive chemical consumption, reduced product yield, and lower plant profitability. |
| |
Our Solution
Instead of relying solely on physical sensors, CyboEye uses an AI engine to derive pH values from process information that may be easy to gather or readily available in the plant.
By using proven MFA pH controllers to control the pH processes, our solution can significantly reduce sensor maintenance work, achieve reliable pH control, and increase product yield.
|
| |
CyboEye pH Soft-Sensor Software
The CyboEye pH Soft-Sensor screen shown below displays two online pH Soft-Sensors, pH1 and pH2. The pH values (Red) are derived by the CyboEye AI engine using online Conductivity (Blue) and Temperature (Green) measurements from the process. By replacing a physical pH Sensor with a Conductivity Sensor and using CyboEye Software, the pH measurement is reliable and requires much less maintenance.
For a zinc leaching process involving sulfuric acid as the primary leaching agent, toroidal conductivity sensors with acid resistant coatings are well suited. Since a Conductivity Sensor can continue to operate in harsh environments where a pH sensor may fail, it can provide a more reliable pH measurement solution.
|
| |
 |
| |
|
CyboEye Application Areas
There are many applications areas that can use the CyboEye pH Soft-Sensor to replace physical pH sensors, including: |
- Pulp black liquor,
- Zinc and copper leaching,
- Sulfuric acid processes,
- Caustic soda processes,
- Acid recovery systems,
- Metal pickling baths,
- Fertilizer production,
- Mining Industry, and
- other highly corrosive industrial applications.
|
| |
MFA pH Control Solution
CyboSoft is well known for its family of MFA controllers, including the MFA pH Controller and Anti-Delay MFA pH Controller. The CyboEye pH Soft-Sensor and MFA Control Solution can be implemented using CyboEye Software and CyboCon MFA
Control Software running on an industrial PC. The MFA control system can also interface with an existing DCS or PLC through OPC or Modbus TCP, making system integration easy.
|
| |
|
| |
Top: An Anti-delay MFA pH controller can effectively control a pH process with large time delays. MFA can deal with significant gain changes and large time delays.
Bottom: A PID pH control loop oscillates badly due to the large time delay and the highly nonlinear behavior of the pH process. |
| |
| |
MFA pH Control Solution Video
Please see the following Video that Demonstrates MFA pH Control Solutions for Industrial Wastewater Neutralization to Meet EPA Regulations
|
| |
|
| |
| |
| |
|
|
