The DMF online concentration meter uses the online refractive principle to determine the concentration of the DMF solution by measuring the refractive index of the DMF solution. Traditional measurement and control methods are all manual.
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DMF: NN-dimethylformamide
Dimethylformamide is both an extremely versatile chemical raw material and an excellent solvent for a wide range of applications. It can be used for wet spinning of synthetic fibers such as polyacrylonitrile fiber, synthesis of polyurethane; film for plastics; paint remover for paint removal; it can also dissolve certain low solubility pigments to make pigments with dyes specialty. Dimethylformamide is used for aromatics extraction and for the separation and recovery of butadiene from the carbon four fraction and the separation of isoprene from the carbon five fraction. It can also be used as an effective reagent for separating non-hydrocarbon components from paraffin. . It has good selectivity for the solubility of isophthalic acid and terephthalic acid: the solubility of isophthalic acid in dimethylformamide is greater than that of terephthalic acid, solvent extraction or partial in diformamide Crystallization, the two can be separated. In the petrochemical industry, dimethylformamide can be used as a gas absorbent to separate and purify gases. In organic reactions, dimethylformamide is widely used not only as a solvent for the reaction, but also as an important intermediate for organic synthesis. In the production process of acrylic fiber, carbon fiber, leather, etc., these organic solvents are widely used as good solvents. The Chuyi online concentration meter is installed in the pipeline or tank, and the online measurement of DMF/DMAC/DMSO/NMP concentration can quickly know the concentration of the solution, and it can be controlled within the appropriate concentration range according to the production process.
The DMF online concentration meter uses the online refractive principle to determine the concentration of the DMF solution by measuring the refractive index of the DMF solution. Traditional measurement and control methods are all manual. The measurement error is large, the control precision is low, the measurement is not timely; the stability of DMF bass is not good enough, the wastewater of the coagulation tank is discharged at a low concentration, and the operation cost of the wet recovery is high.
DMF dimethylformamide online concentration meter parameters:
Online concentration sensor parameters
1. Factory calibration and automatic temperature compensation are directly put into use without on-site calibration;
2. Concentration range: BRIX: 0.00-42.00%;
3. Concentration measurement accuracy: ±0.1%;
4, operating temperature: up to 100 ° C; the highest pressure: 1.0 MPa;
5, temperature measurement range: 0-100 ° C;
6, temperature measurement accuracy: ± 0.5%;
7, automatic temperature compensation range: 5-100 ° C
8, installation form: IDF / ISO clamp fast adapter;
9, detection interface: ultra-pure sapphire;
10, sensor housing: SUS 316L stainless steel "target=_blank> stainless steel
Online concentration controller host parameters
1. One-button boot, easy to use;
2, 7" TFT true color 800 * 480 high resolution touch screen;
3, built-in Siemens high-speed microprocessor, powerful;
4, powerful control functions, integrated PID control, upper and lower limit control, alarm output, etc.;
5. Built-in 4-10Ma/0-10V analog output or relay output is used to control the actuator;
6, can customize the control mode, cleaning mode, automatic cleaning time and cleaning interval;
7, built-in EEPROM, all parameters are permanently stored in the host, power loss is not lost;
8, built-in self-diagnosis function, possible faults at a glance;
9, built-in real-time curve, easy to trace historical data
10, 4-20mA or 0-10V standard analog signal output;
11, RS485 communication output, MODBUS RTU communication protocol;
12, anti-interference full shielding design;
13, the output signal: 4-20mA (DC); electrical interface: M20X1.5 internal thread;
14, the ambient temperature is 0--50 ° C;
15, power: 110/220VAC, 50/60HZ, power consumption: ≤100W;
Integrated automatic cleaning device
Integrated automatic cleaning device, the cleaning frequency and the cleaning time can set parameters in the host. After saving, the data will be permanently stored in the concentration controller mainframe, and the host will control the cleaning actuator according to the set parameters.
Advantages of using DMF online concentration meter:
DMF concentration intelligent control system (online concentration meter, online concentration detector) implementation plan
DMF solution concentration control system software schematic
DMF solution concentration online measurement and control system (DMF online concentration meter) customer application case
Well-known enterprises such as Amway, Wenzhou Artificial Leather, Hexin Shares, Wenzhou Ao Peng Synthetic Leather, Fujian Nanfeng Artificial Leather, and Bedley Leather
Chuyi online measurement and control online concentration meter application range
Petrochemical industry
Mining machinery emulsified oil, cutting oil, cutting fluid, antifreeze, ethylene glycol, lubricating oil, paint, glue, paraffin, wax petroleum, hydrochloric acid, acetic acid, HF hydrofluoric acid, sulfuric acid, sulfur ** ammonium, fuming sulfuric acid, Boric acid, phosphoric acid, caustic soda, citric acid, oxalic acid, (NaOH) sodium hydroxide, (TMAH) tetramethylammonium hydroxide, inorganic salt solution, ammonia water, hydrogen peroxide (hydrogen peroxide), gelatin, triethylene glycol, Online measurement and control of solution concentration of nylon-66 salt) adipamide, caprolactam, sodium hypochlorite and glycerol
2. Medical biology
On-line measurement and control of pharmaceutical intermediates, solvents, polyvinyl alcohol (PVA), sucralose, citric acid, lysine, lactic acid, etc.
3. Sugar industry
On-line measurement and control of solution concentrations of sucrose, beet sugar, maltose, fructose syrup, glucose, raw juice, sugar paste, honey, liquid sugar, xylitol, maltose, candied syrup, and crude sugar
4. Semiconductor
On-line measurement and control of solution concentrations such as high-purity solvents and cleaning agents
5. Food and Beverage
Juice, juice concentrate, jelly, ketchup, candy, chocolate, soft drink, wine, milk, tea drink, beer, rice wine, coffee, coffee extract, honey, propolis, dairy, yogurt, soy milk, ketchup, jam, jelly On-line measurement and control of solution concentrations of starch, glucose, fructose, pectin, food additives, alcohol, etc.
6. Textile paper
Black liquor, green liquor, white liquor, waste liquor, red liquor, sizing agent, (DMF) dimethylformamide, (DMAC) dimethylacetamide, (DMSO) dimethyl sulfoxide, (NMP) N On-line measurement and control of solution concentrations such as methylpyrrolidone
For specific application plans, please contact Changsha Chuyi Measurement and Control.
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