Electromagnetic Flowmeter for Papermaking Plant in Thailand
Industry Background
The paper industry is one of Thailand’s key manufacturing sectors. In recent years, the industry has seen rapid growth, fueled by an expanding economy. Manufacturers are increasingly adopting advanced technologies and equipment to boost production efficiency and improve product quality. Sustainability is also a growing focus, with paper plants taking steps like wastewater recycling, energy utilization, and paper recycling to minimize their environmental footprint.
Papermaking Process Overview
The general papermaking process involves the following steps: raw materials → pulping → papermaking → storage.
In the pulping process, it’s critical to maintain a consistent pulp-to-water ratio and concentration. This step requires precise control, as different paper grades demand different pulp mixtures. Additives such as dispersants and bleaching agents are also used. Given their corrosive nature and small flow rates, accurate flow measurement of these additives is crucial to prevent product defects and material waste.
Specific Application in the Pulping Process
For one of our customers in Thailand, he thinks the precision and stability of the flow measurement system are critical. He uses our magnetic flowmeters in his plants and considers this type of flow meter highly suitable for this application due to their accuracy, corrosion resistance, and ability to withstand harsh chemicals used in pulp production.
Pulp Blending Control:
Install a magnetic flowmeter on each pipeline involved in pulp blending to measure the instantaneous and total flow rates of each component entering the main mixing pipe. By adjusting the valve, the system ensures each pulp mixture meets the required specifications. Since the chemicals used in this process are highly corrosive, a PTFE-lined electromagnetic flowmeter was chosen to ensure durability and reliability.
Wastewater Treatment and Reuse:
In the wastewater treatment process, which is critical for recycling water for reuse in the papermaking plant, flowmeters measure the discharge water, additives, and sludge. Due to the presence of impurities, corrosive components, and large flow variations, a PTFE liner and 316L electrodes were selected to handle the demanding environment.
Product Advantages
High Measurement Accuracy & Reliability: Consistently accurate flow measurement regardless of environmental conditions. Ensures that the pulp mixture ratio is maintained precisely, minimizing production waste and improving product quality.
Excellent Repeatability & Dynamic Response: Magflow meters deliver consistent performance under varying operational conditions. Ensures that flow measurements are dependable over time, reducing downtime and increasing operational efficiency.
Wide Flow Measurement Range & Pipe Size Compatibility: Can measure flow in various pipe diameters and across a broad range of flow rates. It features flexible installation and adaptability to different stages of the papermaking process.
Unaffected by Fluid Characteristics: Not affected by changes in fluid humidity, density, viscosity, pressure, or corrosive components. Reliable performance in the harsh chemical environments typical of papermaking.
Customizable Liners, Electrodes, and Flanges: Customers can select materials that best suit their specific fluid types and process conditions. Ensures that the flowmeter can withstand specific challenges like corrosion or abrasion in the papermaking process.
Solution Effect
After implementing our magnetic flowmeters, the customer achieved significant improvements in operational efficiency. The precise control of pulp ratios optimized the papermaking process, while effective wastewater management ensured compliance with environmental regulations. This helped reduce costs, prevent waste, and meet government sustainability standards.
