Online Concentration Meter for Ammonium Nitrate Spray Solution: Application Brief for Industrial Flue Gas Treatment Processes!
2026-06-15
In the industrial flue‑gas spray‑scrubbing purification process, ammonium nitrate solution serves as the core absorbent, and its concentration directly determines the effectiveness of exhaust‑gas treatment, the stability of operating conditions, and the enterprise’s operational costs. During production, an imbalance in the absorbent concentration can give rise to a variety of process issues: if the concentration is too low, the gas‑adsorption and purification capacity is significantly reduced, leading to non‑compliant emissions and posing risks of environmental‑regulation violations; if the concentration is too high, it results in wasted reagent and increased production costs, while also readily causing crystallization, scaling, and blockages in the piping system, which in turn lead to abnormal pipeline pressures, substantially raising the frequency of equipment maintenance and, in severe cases, disrupting the stable operation of the entire exhaust‑gas treatment system and compromising safe production on the line.
Currently, most enterprises still rely on traditional manual sampling and laboratory analysis to monitor chemical concentrations, which suffers from numerous shortcomings. The manual testing process is cumbersome and produces delayed data, making it impossible to capture real-time fluctuations in solution concentrations and failing to meet the demands of continuous, automated production-line operations. Moreover, frequent on-site sampling is inefficient and labor‑intensive, with workers exposed directly to chemical reagents, posing potential safety risks. As a result, this approach can no longer satisfy the core requirements of modern factories for precise environmental management, safe production, and cost reduction coupled with efficiency gains.
Addressing key pain points in industry monitoring, the online ammonium nitrate spray‑liquid concentration meter employs an advanced ultrasonic sound‑velocity measurement principle. Leveraging the correlation between solution sound velocity, temperature, and concentration, and incorporating a high‑precision temperature‑sensing module for real‑time compensation, it completely eliminates measurement errors caused by temperature fluctuations. The device boasts exceptional anti‑interference performance and is well suited to complex operating conditions where the spray liquid contains trace amounts of air bubbles, impurities, and suspended solids, ensuring accurate and stable monitoring data. Its integrated design features corrosion‑resistant 316L stainless steel wetted parts, making it ideal for ammonium nitrate‑corrosive environments and delivering outstanding durability. Equipped with a high‑definition backlit display for clear, intuitive on‑site readings, the instrument supports 24 V DC industrial power supply and offers dual signal outputs—4–20 mA and RS‑485—enabling seamless integration with PLC and DCS systems for remote data transmission and centralized intelligent control.
This instrument offers a measurement range of 0–80%, high accuracy, and features no moving mechanical parts, resulting in low failure rates and virtually maintenance-free operation, thereby significantly reducing O&M costs. Its flexible installation allows it to be deployed at multiple locations, such as spray lines, circulation tanks, and dosing tanks, enabling continuous 24/7 online monitoring. By providing real-time, precise control of chemical concentrations, it ensures compliance with emission standards, enables accurate chemical dosing, and reduces consumable usage, while mitigating risks such as pipeline crystallization and equipment corrosion. Overall, it supports the intelligent, standardized, and cost‑effective stable operation of industrial flue‑gas treatment processes.
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