Online detection system for concentration and density of limestone-gypsum slurry

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This technical team is primarily responsible for implementing online monitoring of quality parameters in chemical production. The online monitoring system makes use of the signals already available at the production site (temperature, pressure, flow rate, etc.), and adds additional measurement points at appropriate locations depending on the specific project (by purchasing mature hardware from abroad). The signals required for monitoring are fed into intelligent instruments for model calculations, while the test results of samples on-site are used to adjust the parameters. The company’s main technical approach involves developing additional functions for existing hardware, performing mechanistic modeling using physical and chemical methods, designing a model that is specific to the customer’s actual process, and utilizing a database platform to enable accurate measurement of the values to be determined. The core technical advantage lies in the fact that the products are entirely developed through independent research. By taking into account the nature of various testing subjects, the manufacturing processes, and the surrounding environment, corresponding models are created and design solutions are developed, ensuring that the products fully meet the actual needs of customers. The limestone/gypsum wet process is the most widely used and technologically mature flue gas desulfurization technique at present, accounting for about 70% of the installed FGD capacity. This method uses limestone as a desulfurization agent; by spraying an absorbent slurry into the absorption tower, it comes into full contact with the flue gas and washes it, allowing the SO2 in the flue gas to react with CaCO3 in the slurry as well as with the strongly oxidizing air introduced into the system. The concentration and density of the gypsum slurry indirectly affect the efficiency of desulfurization. It is understood that there are currently many methods available to obtain the concentration and density values of gypsum slurry, either directly or indirectly, but the subsequent maintenance and service life of these methods are not very satisfactory. The online detection system for the concentration and density of limestone-gypsum slurry is very different from the conventional concentration and density meters available on the market. It relies entirely on the principle of soft sensing; no additional equipment is needed. Signals related to the concentration (or density) of the gypsum slurry are obtained from the existing instruments on site, and mechanism modeling is carried out accordingly, without posing any potential risk to the absorption tower. Of course, the specific plan will still need to be determined based on the operating conditions. Experts, do you think this could provide some guidance for production? We welcome everyone to discuss this together.