The performance and characteristics of the sulfur tester instrument

WDL-6000B microcomputer rapid sulfur tester performance and characteristics: mainly used to determine the total sulfur content in coal, steel and various minerals, is a necessary instrument for the laboratory of coal, electric power, metallurgy, chemical industry, building materials, commodity inspection and other departments. This instrument is developed on the basis of KZDL series and other domestic sulfur measuring instruments.

1.Measuring range of sulfur: 0-40%.

2.Specimen analysis time.

Set it by yourself and automatically determine the end point.

3.Temperature control: The temperature control temperature is 1150 5, and the operating temperature is 0 1300, which can be set arbitrarily. External platinum rhodium-platinum thermocouple, the heating element is a silicon carbon tube (model: 40 30 200mm), the length of the high temperature zone is 90 mm.

4.Heating speed: Automatically control the heating current to raise the temperature at a uniform speed, and reach the temperature control temperature of 1150 after about 35 minutes.

5.Sample weight: You can enter and modify it by yourself.

6.Sample number: arbitrarily coded and modified by the user.

8.Moisture: The analytical moisture of the coal sample, which the user inputs as needed, can calculate the total sulfur content on the dry basis.

9.Accuracy: You can input and modify it by yourself.

10.Printing: Panel printer, which can print out the laboratory name, laboratory time, moisture, sample number, sample weight, sulfur content, percentage content, and dry base sulfur of the unit.

11.Power supply: 220V 10%, 50Hz.

The sulfur meter of Hebi Keli can measure 24 samples at a time, which is very convenient.

1. Sulfur measurement range:

2. Sulfur measurement resolution:

3. Test time: 4 minutes - 8 minutes (depending on the type and weight of the sample) 4. Test temperature: 1150 (coal), 920 (oil) 5, temperature control accuracy: 5

6. Sample weight: 10-100mg

7. Number of samples: 1-24.

8. Test method: Coulomb titration.

9. Precision: in line with GB T214-200710, accuracy: within the allowable error range of standard samples.

11. Power supply: 220V 10% 50Hz

12. Power:

13. Instrument size: 500mm 500mm 750mm14. Instrument weight: 35kg

1) The preparation of coal samples has a bad effect on the results of sulfur determination;

2) Improper selection of waste samples and standard samples of sulfur testers;

3) The particle size of the test coal sample was uneven and the representativeness was not strong enough;

4) If the sulfur measurement test process is not operated in accordance with the national standards and regulations, it will also affect the accuracy of the data and cause damage to the instrument;

5) When the melting plate of the sulfur meter electrolytic cell has ash or black deposits, it will cause the gas path to be blocked, so that the measurement result is low, and secondly, the indicator electrode of the electrolytic cell is also susceptible to pollution due to long-term exposure to the air, and it will also affect the results if it is not cleaned in time.

6) The sulfur tester is used as the electrolyte in the electrolytic cell, and after measuring the sample for many times, sulfuric acid is generated in the electrolytic leasing solution, which will also make the measurement result low. Therefore, the electrolyte needs to be changed regularly.

The above is shared by the pure type of Hebi Huanuo coal inspection instrument, and is for learning reference only.

Cause of failure:

1) The preparation of coal samples has a bad effect on the results of sulfur determination;

2) Improper selection of waste samples and standard samples of sulfur testers;

3) The particle size of the test coal sample was uneven and the representativeness was not strong enough;

4: The sulfur measurement test process is not standardized.

5: During the test, when the melting plate of the electrolytic cell has ash or black deposits, it will cause the gas path to be blocked, so that the measurement result is low.

Ways to avoid it:

Standardized use: 1. Preparation of electrolyte: 5 grams of potassium iodide and 5 grams of potassium bromide, dissolved into 250 300ml of divaporated water, and then 10ml of glacial acetic acid (glacial acetic acid) electrolyte can be reused, when the pH value of the electrolyte should be between 1 2, when the pH value is < 1 or turbidity, the preparation of the electrolyte should be updated.

2. Open the front electrolysis window and load the electrolyte into the electrolytic cell.

3. Turn on the power of the host (the power supply is turned off at the bottom left of the instrument).

4. Press the heating button on the operation panel, and the instrument will automatically heat up to 1150.

5. Press the stirring button, the stirrer will automatically increase the speed, and the air pump will automatically open, at this time, check whether the gas path is normal, adjust the pumping flow to 1000ml min, and pinch the air intake pipe above the electrolytic cell by hand, if the suspended particles under the pumping flowmeter fall to the bottom, it means that the air purification system does not leak, otherwise check the air leakage.

6. Preparation before weighing the source lifting sample: before weighing the sample, the coal sample in the sample bottle should be mixed evenly as much as possible, and the top of the sample bottle with a lid can be held by hand, and the garden circumference movement should be done from top to bottom, and it should not be shaken up and down. Thorough mixing of the specimen is an important factor in ensuring test results.

7. Weigh the coal sample (50mg to keep one decimal place (), and cover it with a layer of tungsten trioxide to prevent deflagration.

8. After pressing the electrolytic button, press the return button, the porcelain tray tray will be automatically opened, and the sample feeding rod will be automatically sent out of the right outer side of the instrument.

9. After the sample rod is reset, press the zero button, and then type in the weight of the sample.

10. Type the test date: press the date key, type 2005 and then press the date key again, type 0820. Note: Two digits must be typed for both the month and the day.

In this case, the print date is August 20, 2005, and if you forget to enter the date, the print result will be ??? Year?? Month??

Day. 11. After putting the porcelain boat containing the coal sample on the pallet, press the start button, and the instrument will automatically enter the test working hail and blue state.

12. After doing one or two waste samples according to the above methods, you can enter the state of doing positive samples. After each test, the test results are automatically printed. After clearing, repeat the following test process.

13. After the test work is completed, press the start and send the sample button, and then press the return button, the sample feeding rod will automatically retreat into the body, and after it is in place, close the sample feeding. Press the start stirring button, turn off the heat button and finally turn off the power switch.

Assay analysis of coal Assay analysis.

Among all coal quality analysis instruments, the sulfur meter has the highest failure rate, and the general failure phenomenon is low or inaccurate results. According to the previous maintenance records, the reasons for the low and unstable results of the sulfur tester were summarized, including the stirring speed, air tightness, incorrect waste samples, and rupture of the reducer. 1. Stirring speed.

If the stirring is too slow, there will be tailing at the end of the electrolysis process, and the iodine generated by electrolysis will not diffuse rapidly, which will cause the endpoint control of the sulfur meter to fail, and the accurate and accurate total sulfur value cannot be obtained, which will affect the accuracy of the test results.

Stirring too fast may cause the suction plate on the stir bar and stirring motor to lose step, and once out of step, it will cause overelectrolysis. 2. Air tightness.

If the gas flow rate is too small, there will be two evil consequences: on the one hand, it will cause incomplete combustion, resulting in low sulfur meter measurement results; On the other hand, it is not easy to take away the sulfur dioxide generated by coal combustion and be absorbed by the absorbent solution, so that the end point is not easy to determine, which often leads to high results. If the gas flow is too large, the sulfur oxide gas may pass through the absorption liquid too quickly, and it will be carried away before it can be absorbed, resulting in a low result. 3. The impact of waste samples.

When using high-sulfur coal for neutralization, the weight of the coal sample should be equal to that of the normal experiment. The electrolysis indicator should be off when returning, and if it is returned when the light is on, it should be sent back into the furnace for combustion and decomposition, so as to avoid the residue of sulfur content leading to high results for the official sample.

When using low-sulfur coal samples for neutralization, it should be noted that several neutralization samples (waste samples) may need to be done in order to achieve the best electrolysis. 4. Reducer.

The reducer fractured, resulting in a decrease in the tightness of the sulfur meter, resulting in low and unstable measurement results.

It is common that the reducer is not cleaned, resulting in the clogging of the tip of the reducer or more foreign bodies, which also affects the measurement results of the sulfur tester. The above 4 are the main reasons for the instability of the sulfur tester results, and there are also the electrode piece pollution of the electrolytic cell, start-up, and system failure of the sulfur meter controller.

1) The purpose of coal sample preparation is to prepare the collected coal samples into representative coal samples for analysis through crushing, mixing and shrinkage procedures. If the coal sample is not operated according to the regulations, such as not proportionally reduced, and made to reach the air dry state, there is no magnet to suck the iron filings in the coal sample, and it is not crushed into a smaller coal sample, and the accurate measurement results will not be obtained, so the coal sample preparation is bad.

2) The waste sample and standard sample of the sulfur tester are not properly selected, and a waste sample should be made before each instrument is turned on for testing, and then a standard sample should be made, and then a test sample should be made after the standard sample is qualified. If the sulfur content of all standard samples is high and the sulfur content of the tested sample is low, the measurement results will be incorrect due to the inconsistency of the correction coefficient. Therefore, the improper selection of waste samples and standard samples of sulfur tester is the main reason.

3) The particle size of the test coal sample was uneven and the representativeness was not strong enough; Since the particle size and ash content of coal are very uneven, when the particle size of the sample is uneven, the precision of the measurement results will be poor. Therefore, when preparing analytical samples, they must be fully ground and sieved to improve their uniformity. The sample should be weighed in an appropriate amount and evenly flattened.

The sampling is not representative, resulting in deviation of the results or unstable measured values, so the particle size of the coal sample is uneven, and the representativeness is not strong enough.

4) The sulfur measurement test process is highly standardized, if it is not operated in accordance with the national standard and procedures, it will inevitably affect the accuracy of the data and cause damage to the instrument, therefore, the sulfur measurement is not strictly in accordance with the national standard.

5: During the test, when the melting plate of the electrolytic cell has ash or black deposits, it will cause the gas path to be blocked, so that the measurement result is low. The indicator electrodes of the electrolytic cell are also susceptible to contamination due to long-term exposure to the air, so the electrolytic cell is not cleaned in time.

6) The electrolytic cell is commonly used in the analysis of potassium iodide potassium bromide glacial acetic acid distilled water, which is stored in a cool and dark place. After several measurements of the sample, sulfuric acid is formed in the electrolyte, which can also make the measurement results low. Therefore, the reason why the electrolyte is not changed regularly is the main reason.

7) The environment of the sulfur tester laboratory is poor, and the temperature of the laboratory should be controlled in a separate room.

There are many factors in this question, you can ask the manufacturer, or directly question me Zhengzhou 8 Hengya 9 instrument.

We are a brick factory, using Hebi Keli's calorimeter and sulfur meter.

Sulfur testers can be divided into the following according to the different uses used:

1.The sulfur meter for measuring coal or coke can be divided into: sulfur meter, microcomputer automatic sulfur meter, microcomputer sulfur meter, computer sulfur meter, automatic sulfur meter, integrated sulfur meter, intelligent sulfur meter, Hanxian sulfur meter.

2.Sulfur testers for the determination of petroleum can be divided into;

Sulfur meter, infrared sulfur meter, ultraviolet fluorescence sulfur meter, X-ray fluorescence sulfur meter, X-ray spectrometer sulfur meter.

Hengke Coal Quality Instrument Co., Ltd. specializes in the production of sulfur testers for measuring coal or coke, including fast intelligent sulfur tester KZDL-6, Hanxian sulfur tester HZDL-8, HZDL-8A, integrated sulfur tester KZDL-6A, microcomputer sulfur tester HKCL-6000, microcomputer automatic sulfur tester HKCL-8000.

KZDL-6 fast intelligent sulfur tester, automatic determination by Coulomb titration, single-chip microcomputer control, test time 5 minutes, automatic printing results; KZDL-6A fast intelligent sulfur meter, integrated setting, on the basis of type 3, add automatic heating, automatic correction and other functions, automatic printing results; HZDL-8AA fast intelligent sulfur meter, on the basis of type 3, add automatic heating, automatic correction and other functions, Chinese character display function automatic sail dismantling results; HKCL-6000 microcomputer sulfur meter, computer configuration, RS232 serial interface, printer printout results.

Sulfur measurement accuracy, the maximum furnace temperature is 1150, the practical temperature is 1050, and the test time is about 5 minutes; HKCL-8000 microcomputer automatic sulfur tester, computer configuration, RS232 serial interface, filial piety car macro printer print results.

Sulfur measurement accuracy, the maximum furnace temperature is 1150, the practical temperature is 1050, the test time is about 5 minutes, and 24 samples are tested at a time.

For more information, please consult Hebi Tianyuan Electronic Technology ****.

WDL-6000B microcomputer rapid sulfur tester is mainly used to determine the content of total sulfur in coal, steel and various minerals, and is a necessary instrument for laboratories in coal, electric power, metallurgy, chemical industry, building materials, commodity inspection and other departments. This instrument is developed on the basis of KZDL series and other domestic sulfur detectors, and is designed according to the principle of Coulomb titration in GB T214-1996 (instead of GB214-83). The measurement process of the instrument is automatically controlled by the microcomputer, and the microcomputer carries out a variety of correction and processing of the test data, which changes the disadvantages of bad linearity and zero drift and no other auxiliary functions.

The number of milligrams of sulfur in the coal, the percentage, the clock and various corresponding data are displayed, and the data report of the laboratory name, sample number, sample weight, moisture, milligrams and percentage of total sulfur and dry base sulfur of the user unit is printed. The accuracy and precision of the measurement results are better than those of the national standard GB T214-1996.