Electromagnetic Flowmeters for Industrial Wastewater in the Electroplating Industry

Many industries will produce industrial wastewater, such as the power industry, chemical production, textile industry, electroplating industry, etc. Today, we will introduce the following electromagnetic flowmeters for industrial wastewater in the electroplating industry, including the electroplating section and model selection:

1. Pickling Activation

It is a processing method that uses chemical methods to remove rust and oxide film on the surface of the substrate and make the workpiece surface in an activated state.
Electromagnetic flowmeter application:
Model selection: PTFE lining+tantalum electrode.
Function: The amount of acid liquor needs to be measured in the process of pickling. In the later stage, it can save costs and can be combined with the PH meter to achieve a better pickling effect.
Note: The flow rate in the process of adding acid solution will not be too high, so the electromagnetic flowmeter needs to be calibrated specifically for a low flow rate.

Advantages: Electromagnetic flowmeter measurement can monitor the flow in real-time and optimize the production process.

2. Chloride zinc plating

According to different supporting electrolytes, chloride zinc plating can be divided into ammonium salt zinc plating, potassium salt zinc plating, and sodium salt zinc plating.
Electromagnetic flowmeter application:
Model selection: PTFE lining+tantalum electrode
Function: Many electroplating plants will also conduct the corresponding detection on the amount of electroplating solution to optimize the production process and improve production performance.

Note: Because the chloride zinc plating solution contains hydrochloric acid, the medium is highly corrosive. To ensure the long-term stable operation of the flowmeter, customers are generally recommended to choose tetrafluoroethylene lining and tantalum electrode.

3. Alkali Liquor Degreasing

There are many methods, such as soaking, spraying, steam, combined treatment, and manual wiping. The most commonly used methods are the immersion method and spray method, which can be applied to various processes and occasions. The equipment is simple, easy to operate, safe and non-toxic, and can be semi-manual, automated, and mechanized.
Electromagnetic flowmeter application:
Model selection: PTFE lining+Hastelloy or platinum electrode.
Function: During the washing process, it is necessary to measure the amount of alkali liquor. In the later stage, it can save costs and can be used together with the PH meter to better achieve the effect of alkali washing.
Note: The electrode material shall be selected according to the corrosivity of alkali washing. If the corrosivity is too strong, the platinum electrode shall be selected. Otherwise, it is not durable, and the electromagnetic flowmeter is not durable, leading to serious after-sales problems.

Advantages: If the amount of alkali liquor is not measured, the excessive alkali may lead to strong alkalinity, the transition of alkali washing, and the poor effect of alkali washing.

4. Three-stage Countercurrent Rinsing (Treatment of Wastewater Containing Chromium and Zinc)

It means that the moving direction of the workpiece is opposite to the direction of water flow. In this way, the workpiece is washed with dirty water first and then with clean water, which can not only save water but also clean it. Therefore, the moving direction of the workpiece shall be observed first.
Electromagnetic flowmeter application:
Model selection: PTFE lining+titanium alloy electrode.
Function: In the process of wastewater discharge, it is necessary to detect the flow of wastewater, and at this time, an electromagnetic flowmeter is required.
Note: The discharge of wastewater is mostly self-flowing. To ensure full pipe, attention should be paid to the installation position of the electromagnetic flowmeter.
Advantages: The wastewater treatment in the electroplating park needs to be metered if it is charged. The electromagnetic flowmeter meets the needs of most sites in terms of corrosion resistance and high accuracy.
Hangzhou Meiyi Automation Co., Ltd. is very professional in monitoring wastewater flow, water quality, temperature, etc. in electroplating wastewater treatment. The engineers know the industry very well, and they are very awesome and patient in selection and treatment. It is worth further cooperation in this area.