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1. What are the commonly used online analytical instruments on factory production lines?
The commonly used online analytical instruments on factory production lines are divided into three categories according to their application scenarios: material composition, physical properties, working conditions, and environmental protection. There are more than 10 mainstream types, covering the entire process from raw material feeding, process control to finished product detection..
1. Material Classification Online Analytical Instruments (1) Spectral Category 1 Near infrared online analyzer: the most widely used component detection instrument, which does not require tedious sample pretreatment. It can quickly determine the proportion of water, fat, protein, active ingredients, etc. by detecting the characteristic absorption peaks of the near-infrared band of the material. It is commonly used in food, plastic disassembly, lithium-ion cathode materials, and chemical raw material production lines. Real time monitoring of substance concentration. （2） Chromatography class 1 Online gas chromatograph: can simultaneously detect multiple gases/volatile components with high accuracy, commonly used in petrochemical and coal chemical production lines, such as synthesis gas component analysis in ammonia plants and liquefied gas component analysis in refineries. Online liquid chromatograph: for quantitative detection of impurities and components in liquid phase materials, commonly used in fine chemical and food and beverage industries, such as beer malt extract concentration and pharmaceutical intermediate purity detection. （3） Electrochemical category 1 Online pH meter: the most popular pH detection instrument in produc
2. Online analysis instrument for material properties and particle traces (1) Online viscosity analyzer: Real time detection of material viscosity through principles such as rotation and vibration, used for adjusting process parameters in coating, adhesive, and lubricant production lines.
. （2） Online density meter: divided into differential pressure, vibration, etc., it can measure the density of slurry and oil in real time, convert parameters such as pulp concentration, slurry concentration, and oil brand number, and is widely used in the papermaking, beneficiation, and refining industries. （3） Online particle size analyzer: Real time detection of particle size distribution of powders and slurries, used in grinding and powder processing production lines for building materials and mining, optimizing product particle size indicators. （4） Online moisture analyzer: Real time detection of material moisture content through i
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