Sulfur component multi-parameter measuring system

Abstract

The invention discloses a sulfur component multi-parameter measuring system, which comprises a weighing unit, a heating unit and a control unit, the control unit controls the heating unit to heat to a set temperature according to a set heating rate; the weighing unit is used for weighing the mass of the sulfur sample in the heating unit. The control unit controls the heating unit to heat to a set temperature according to a set heating rate; the weighing unit is used for weighing the mass of a sulfur sample in the heating unit, the mass of the sulfur sample can be weighed by the weighing unit without taking out the heating unit, meanwhile, the condition that the sample can be taken out after being cooled is also omitted, the steps of taking out the sample and cooling the sample are reduced, the determination time of the components of the sulfur sample is shortened, and the detection efficiency is improved. The sulfur sample determination efficiency is improved, the step of taking out the sample is reduced, the risk that the taken-out sample is polluted is also avoided, and the sulfur sample component determination accuracy is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of sulfur component determination, and in particular relates to a sulfur component multi-parameter determination system. Background Art

[0002] The moisture, organic matter and ash content in sulfur are important parameters of sulfur products. At present, the national standard GB / T2449.1-2021 "Industrial Sulfur Part 1: Solid Products" is used to determine the moisture, organic matter and ash content in sulfur. The commonly used analysis method for the moisture, organic matter and ash content in sulfur is gravimetric analysis. Gravimetric analysis is an analysis method that determines the content of the component of the measured substance by weighing the mass of the substance, which has the characteristics of high accuracy. It takes up to 12 hours to use an oven to determine the moisture in a single sulfur sample, and it takes about 8 hours to use a muffle furnace to determine the organic matter and ash content in a single sulfur sample, which seriously affects the timeliness of sulfur product analysis. When the national standard uses the oven method to determine the sulfur component, it is necessary to take out the sulfur sample after high temperature treatment, cool it to room temperature, and then weigh it on the balance, and repeat the above steps until constant weight. The sulfur sample is in contact with the outside air during the cooling process, which is easy to cause problems such as loss of volatile substances and moisture adsorption, causing measurement errors. The oven method for determining sulfur components specified in the national standard has the disadvantages of intermittent operation, cumbersome, time-consuming and large errors.

[0003] The existing sulfur component determination process requires repeated removal, cooling and weighing, which results in a long sulfur component determination time and low efficiency. Summary of the invention

[0004] The purpose of the present invention is to provide a sulfur component multi-parameter determination system to solve the technical problem in the prior art that the sulfur component determination process needs to be repeatedly taken out, cooled and weighed, resulting in a long sulfur component determination time and low efficiency.

[0005] To achieve the above object, the technical solution of the sulfur component multi-parameter determination system provided by the present invention is:

[0006] The multi-parameter determination system of sulfur components includes: a weighing unit, a heating unit and a control unit; the control unit controls the heating unit to heat to a set temperature according to a set heating rate; the weight sensor of the weighing unit is arranged under the heating unit, and the mass of the sulfur sample in the heating unit is obtained by weighing the mass of the heating unit, and the content of each component of the sulfur sample is calculated according to the mass of the sulfur sample in the heating unit during the heating process.

[0007] The beneficial effect is that the present invention arranges the weight sensor of the weighing unit below the heating unit, and obtains the mass of the sulfur sample inside the heating unit by weighing the heating unit. In this way, during the experimental measurement process, the sulfur sample can be weighed by the weighing unit without taking out the heating unit, and the step of weighing the sample after cooling in the dryer is omitted, the steps of taking out and cooling the sample are reduced, the measurement time of the sulfur sample components is shortened, the efficiency of the sulfur sample measurement is improved, and the steps of taking out the sample are reduced, and the risk of contamination of the taken sample is avoided, thereby improving the accuracy of the sulfur sample component measurement.

[0008] As a further improvement, the weighing unit is connected to the control unit, and the mass of the sulfur sample in the heating unit is sent to the control unit, and the control unit is used to calculate the content of each component of the sulfur sample according to the received mass of the sulfur sample in the heating unit.

[0009] The beneficial effect is that the control unit can calculate the mass and component content of the sulfur sample, which saves calculation time and improves the efficiency of component determination compared with the steps of manually calculating the component content.

[0010] As a further improvement, a display unit is also included, and the display unit is used to display the mass data weighed by the weighing unit and the control unit calculates the content of each component of the sulfur sample.

[0011] The beneficial effect is that the display unit displays the relevant data of the weighing unit and the control unit, which is convenient for operators to observe the data of the sample.

[0012] As a further improvement, the heating unit is an electric heating box; before obtaining the mass data of the sulfur sample in the electric heating box, a zeroing operation is performed. The zeroing operation is an operation in which the mass data weighed by the weighing unit is subtracted from the mass data of the electric heating box itself and the sample dish.

[0013] Beneficial effect: The electric heating box is used to heat the sulfur sample. Zeroing is to peel the electric heating box. The weighed mass is directly the mass of the sample in the electric heating box. During the heating process of the electric heating box, the sulfur sample can be weighed by a high-temperature balance without taking out the electric heating box, which solves the problem of repeatedly taking out the sample for weighing during the determination of sulfur sample components and improves the efficiency of sulfur component determination. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the sulfur component multi-parameter determination system of the present invention;

[0015] Figure 2 Flow chart of the sulfur component multi-parameter determination system used in the present invention;

[0016] Description of reference numerals:

[0017] 1. Display screen;

[0018] 2. Weighing unit; 201. Level knob; 202. Level bubble;

[0019] 3. Control equipment;

[0020] 4. Electric heating box; 401. Pressure regulating valve; 402. Electric heating box handle. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention, that is, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. The components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0022] Sulfur component multi-parameter determination system embodiment:

[0023] like Figure 1 and Figure 2 As shown, the sulfur component multi-parameter determination system includes: a weighing unit 2, a heating unit and a control unit; the control unit controls the heating unit to heat to a set temperature according to a set heating rate; the weight sensor of the weighing unit 2 is arranged below the heating unit, and the mass of the sulfur sample in the heating unit is obtained by weighing the mass of the heating unit, and the content of each component of the sulfur sample is calculated according to the mass of the sulfur sample in the heating unit during the heating process. The weighing unit 2 is connected to the control unit, and the mass of the sulfur sample in the heating unit is sent to the control unit, and the control unit is used to calculate the content of each component of the sulfur sample according to the received mass of the sulfur sample in the heating unit.

[0024] In this embodiment, the heating unit is an electric heating box 4. Before obtaining the mass data of the sulfur sample in the electric heating box, a zeroing operation is performed. The zeroing operation is an operation in which the mass data weighed by the weighing unit is subtracted from the mass data of the electric heating box itself and the sample dish. The weighing unit 2 is provided with a horizontal knob 201 and a level bubble 202 for adjusting the weighing unit 2 to a horizontal position; the electric heating box 4 is provided with a pressure regulating valve 401 for regulating the pressure in the electric heating box 4. A display unit is also included, which is a display screen 1, and the display screen 1 is used to display the mass data weighed by the weighing unit and the control unit calculates the content of each component of the sulfur sample.

[0025] The specific steps of using this system to determine the sulfur components are as follows: 1) Preliminary preparation for sulfur component determination: Use a pulverizer to crush the sulfur sample until it passes through a test sieve with an aperture of 0.6 mm, take 5g to 10g of the sulfur sample and put it in a sample dish. Adjust the weighing unit 2 to a horizontal level by adjusting the level knob 201 and observing the bubble 202 of the level gauge.

[0026] 2) Obtaining the initial mass m of the sulfur sample: Open the electric heating box 4 through the electric heating box handle 402, put the sample dish into the electric heating box, and first perform zeroing operation on the weighing unit 2. Take out the sample dish, place the sulfur sample in the sample dish, and place the sample dish containing the sulfur sample in the electric heating box 4. The weighing unit 2 weighs the initial mass m of the sulfur sample through the weight sensor arranged under the heating unit.

[0027] 3) Obtain the moisture content w of the sulfur sample 1 :The control unit in the control device 3 controls the electric heating box 4 to heat to the first set temperature of 79℃~81℃ at a first heating rate of 20℃ / min~25℃ / min. When the weighing unit detects that the mass of the sulfur sample does not change within the set time, the constant weight first mass m of the sulfur sample is recorded. 1 , the control unit calculates the sulfur moisture content w according to the calculation formula 1 , the calculation formula is:

[0028]

[0029] Among them, w 1 is the moisture content of the sulfur sample, m is the initial mass of the sulfur sample, and m 1 The first mass of the sulfur sample. The principle of determining the moisture content of sulfur is that under the first set temperature condition, the moisture of sulfur is lost, and the reduced sample mass is the moisture mass in the sulfur sample.

[0030] 4) Obtain the organic matter content w of the sulfur sample 2 :The control unit arranged in the control device 3 controls the electric heating box 4 to heat to the second set temperature 250°C at a second heating rate of 10°C / min to 15°C / min. When the weighing unit detects that the mass of the sulfur sample does not change within the set time, the constant weight second mass m of the sulfur sample is recorded. 2 .

[0031] 5) Check whether the pressure in the electric heating box is normal. If the pressure is too high, adjust the pressure in the electric heating box to normal pressure through the pressure valve 401.

[0032] 6) Obtain the ash content w of the sulfur sample 3: The control unit arranged in the control device 3 controls the electric heating box 4 to heat to the third set temperature 800°C to 850°C at a third heating rate of 35°C / min to 40°C / min. When the weighing unit detects that the mass of the sulfur sample does not change within the set time, the constant weight third mass m of the sulfur sample is recorded. 3 , the control unit calculates the organic matter content of the sulfur sample according to the calculation formula w 2 and ash content w 3 , the calculation formula is:

[0033]

[0034]

[0035] Among them, w 2 is the organic matter content of the sulfur sample, m 2 is the second mass of the sulfur sample, w 3 is the ash content of the sulfur sample, m 3 It is the third mass of the sulfur sample.

[0036] The principle of determining the content of sulfur organic matter is that the second mass of the sulfur sample is the sum of the mass of organic matter and the mass of ash in the sulfur sample. The difference between the second mass and the third mass of the sulfur sample is the mass of organic matter in the sulfur sample. The content of organic matter in the sulfur sample is calculated on a dry basis. The sulfur in the sulfur sample burns under the second temperature condition, generating a large amount of flue gas, and the pressure in the electric heating box increases. The substances produced by sulfur combustion are discharged through the pressure regulating valve, the pressure of the electric heating box is kept at normal pressure, and the temperature in the electric heating box is controlled under the second set temperature condition.

[0037] The principle of determining sulfur ash content is that under the third temperature condition, the third mass is the sulfur ash mass. The ash content in sulfur is calculated on a dry basis.

[0038] The display unit controls the display screen 1 to display the initial mass m and the moisture content w of the sulfur sample obtained by the above calculation. 1 , organic matter content 2 and ash content w 3 .

[0039] 7) After the component determination of the sulfur sample is completed, turn on the electric heating box, take out the sample dish containing the sulfur sample after cooling, and clean it.

[0040] The system sets the weight sensor of the weighing unit 2 below the heating unit, and obtains the mass of the sulfur sample inside the heating unit by weighing the heating unit. In the process of determining the components of the sulfur sample, it is not necessary to take out the sulfur sample for weighing. Compared with the existing operation of repeatedly taking out the sulfur sample for weighing, the time for sulfur component determination is shortened and the efficiency of sulfur component determination is improved. At the same time, it avoids sample contamination caused by the step of taking out the sulfur sample, further avoids inaccurate weighing of the sample, and thus improves the accuracy of sulfur sample component determination.

[0041] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions recorded in the aforementioned embodiments without creative work, or replace some of the technical features therein with equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. Sulfur component multi-parameter measurement system, characterized in that: include: A weighing unit, a heating unit and a control unit; the control unit controls the heating unit to heat to a set temperature at a set heating rate; a weight sensor of the weighing unit is arranged below the heating unit, and the mass of the sulfur sample in the heating unit is obtained by weighing the mass of the heating unit, and the content of each component of the sulfur sample is calculated according to the mass of the sulfur sample in the heating unit during the heating process.

2. The sulfur component multi-parameter measurement system according to claim 1, characterized in that: The weighing unit is connected to the control unit, and sends the acquired mass of the sulfur sample in the heating unit to the control unit, and the control unit is used to calculate the content of each component of the sulfur sample according to the received mass of the sulfur sample in the heating unit.

3. The sulfur component multi-parameter measurement system according to claim 2, characterized in that: The device also includes a display unit, which is used to display the mass data weighed by the weighing unit and the control unit to calculate the content of each component of the sulfur sample.

4. The sulfur component multi-parameter measurement system according to any one of claims 1 to 3, characterized in that: The heating unit is an electric heating box; before obtaining the mass data of the sulfur sample in the electric heating box, a zeroing operation is performed, wherein the zeroing operation is an operation of subtracting the mass data of the electric heating box itself and the sample dish from the mass data weighed by the weighing unit.

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