The MPR E-Scan alumina dissolution NK online concentration analyzer meets any application that requires online measurement of caustic soda concentration. Currently, it is widely used in the alumina industry for online measurement of caustic soda concentration NK values.
Detailed introduction of MPR E-Scan alumina dissolution NK online concentration analyzer:
Optical principle based on critical angle total reflection. The light source of the instrument emits light towards the surface of the prism in contact with the measured solution. When the light enters the solution from the prism, it reaches the critical angle as the incident angle increases, and the refracted light propagates along the interface of the medium. The instrument detects the critical angle through high-precision optical sensors, and calculates the actual concentration of caustic soda (NK) in the solution based on the relationship between the critical angle and the refractive index of the solution, as well as a pre established database corresponding to refractive index and concentration.
high-precision measurementIt can accurately measure the concentration of caustic alkali in the leachate, with a measurement accuracy of ± 0.1%, providing a guarantee for precise control of caustic alkali concentration in the production process.
Real time online monitoringContinuous real-time monitoring can reflect small changes in the concentration of caustic soda in a timely manner, allowing operators to adjust production parameters in a timely manner based on concentration changes.
Strong anti-interference abilityThe detection is not affected by factors such as color, turbidity, bubbles, solid impurities, and external light of the solution, and can work stably in complex Bayer process production environments to ensure reliable measurement results.
Automatic temperature compensationIt can eliminate the influence of temperature on the refractive index and concentration measurement of solutions, ensuring accurate measurement of caustic alkali concentration under different temperature conditions.
Easy to integrate and maintainThere are multiple signal output interfaces, such as 4-20mA, RS485, etc., which facilitate integration with the control system of Bayer process production equipment and achieve automation control. The instrument has a simple structure and requires minimal maintenance.
Optimize the dissolution processAccurately monitor the concentration of caustic alkali during the leaching stage, help operators control leaching conditions, ensure sufficient leaching of alumina in bauxite, improve leaching rate, and reduce waste of ore resources.
Improve product qualityHelps to stabilize the concentration of caustic alkali at each stage of the production process, enabling subsequent processes such as seed decomposition to be carried out in a suitable alkaline environment, ensuring the quality of AlOH crystallization and improving the quality of alumina products.
Realize automated controlCombined with the automation control system of the production system, relevant process parameters such as the amount of mother liquor added are automatically adjusted according to the set concentration of caustic alkali, improving the automation level and stability of production and reducing manual operation errors.
降低成本By precise concentration monitoring and control, problems such as reduced production efficiency and raw material waste caused by improper control of caustic alkali concentration can be avoided, reducing production costs and improving the economic benefits of the enterprise.
It is mainly used for online measurement of caustic alkali (NK) concentration in sodium aluminate solution in the alumina industry, meeting the real-time monitoring needs of caustic alkali concentration in the alumina production process. Currently, it is widely used in the leaching, dilution, settling, decomposition and other processes of alumina production enterprises in China.
