Multiple sample sulfur analyzer

Multiple sample sulfur analyzer
HKCL-8C typeMultiple sample sulfur analyzerAdopting an integrated structure, the automatic sample delivery and loss deviceCracking furnace, electrolytic cell and other components are assembled in a compact instrument structure throughout the entire box, with continuous automatic feedingSample structure, automatically complete the testing of all samples.
Technical parameters:
1. Test method: Constant current method, software coulometric titration
2. Sulfur measurement range: 0.01-40%
3. Test temperature: 1150 ℃ (coal), 920 ℃ (oil)
4. Heating time: ≤ 30 minutes
5. Analysis time: about 3-6 minutes (automatic determination of titration endpoint can be ended early and returned)
6. Sample weight: ≤ 100mg (depending on the type and weight of the sample)
7. Resolution: 0.001%
8. Sulfur measurement accuracy: meets the requirements of the national standard GB/T214-2007
9. Working power supply: AC220V ± 15% 50Hz
10. Power consumption ≤ 3.0KW

Hardware installation and debugging:
1. Open the cover of the sample feeding unit, align it with the entrance of the combustion furnace, fix the sample pushing rod in a straight line, and feed itThe sample porcelain boat enters and exits the furnace smoothly. The gas supply port of the quartz tube to the electrolytic cell needs to be connected with a silicone rubber tube, and it should be used as much as possibleSeal the glass mouth to the glass mouth to prevent corrosion of the silicone rubber tube by sulfides.
2. Connect the leads of the high-temperature combustion furnace to the two terminals marked with the word "electric furnace". Thermocouple insertion into furnaceInsert it into the thermocouple hole at the back and fix it by about 2mm after exiting. The thermocouple leads are connected to the red and black wiresOn the thermocouple terminal, connect the positive end to the red terminal and the negative end to the black terminal (by removing the short circuit of the terminal). ElectrolysisConnect the four pin lead out plug above the cell to a four pin socket labeled "electrolytic cell".At this point, the electrical connection of the entire machine is completeThe line is completed.
3. Installation and leak detection of electrolytic cell: Open the upper cover of the electrolytic cell, rinse the electrolytic cell and four platinum tubes with tap waterElectrode, carefully wipe with ethanol (or acetone) cotton ball, and finally rinse with distilled water (note: strictly prevent)Directly contact ethanol (or acetone) liquid with the electrolytic cell shell and top cover. Place the stirring rod into the electrolytic cellInside, cover the lid and fill the electrolytic cell with water. Use a latex tube to connect the extraction tube and sintered glass of the electrolytic cellConnect the connecting pipes of the melting plate, tighten the rubber stopper on the electrolytic cell, and open the drain pipe of the electrolytic cell, such as water
If the surface does not decrease, it indicates that the electrolytic cell is not leaking air.
4. Adding electrolyte: Open the rubber stopper above the electrolytic cell, place the funnel, and the solution will quickly leak into the electrolytic cellInside.
5. Slowly rotate the "furnace flow" control knob to adjust the heating current. The current should not be too high, initially ranging from 5 to 7ALater increase to 8A or 10A, approximately 40 minutes
The furnace temperature can be raised to 1150 ℃. Set the ammeter to 8A position, and the combustion furnace will start to heat up. When the temperature reaches 900When the temperature is between ℃ and 1000 ℃, turn on the mixer button and adjust the mixing speed knob to (1000-1500 rpm)）After the appropriate speed is reached, turn on the electromagnetic pump switch and adjust the gas flow meter to the specified gas flow rate（1000ml/min）， Close the glass piston between the combustion tube and the electrolytic cell, and observe the rotation of the gas flow meterHas the sub decreased? If it decreases below, it indicates that the purification system connected to the electrolytic cell is also not leaking. Otherwise, check for leaksThe main reason is the interface area. After troubleshooting, open the piston between the combustion tube and the electrolytic cell to dryDry ventilation ducts and sintered glass melting plates.
6. After the above preparations are completed, the sample can be weighed. Before weighing the sample, try to remove the sample bottle as much as possibleMix the inner sample evenly, hold the sample bottle with a lid by hand, and move the wrist in a circular motion from top to bottom,Do not shake the sample bottle up and down; Alternatively, open the bottle cap and stir the sample with a spoon to ensure thorough mixing of the sampleOne of the key factors for accurate results. The weight of the sample is in three digits, which is around 50.0mg.