CN220154024U - Sampling system for sulfur trioxide in smelting flue gas - Google Patents
Sampling system for sulfur trioxide in smelting flue gas Download PDFInfo
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- CN220154024U CN220154024U CN202321578575.2U CN202321578575U CN220154024U CN 220154024 U CN220154024 U CN 220154024U CN 202321578575 U CN202321578575 U CN 202321578575U CN 220154024 U CN220154024 U CN 220154024U
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- 238000005070 sampling Methods 0.000 title claims abstract description 66
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 39
- 239000003546 flue gas Substances 0.000 title claims abstract description 39
- AKEJUJNQAAGONA-UHFFFAOYSA-N sulfur trioxide Chemical compound O=S(=O)=O AKEJUJNQAAGONA-UHFFFAOYSA-N 0.000 title claims abstract description 28
- 238000003723 Smelting Methods 0.000 title claims abstract description 13
- 238000010521 absorption reaction Methods 0.000 claims abstract description 68
- 239000007788 liquid Substances 0.000 claims abstract description 31
- 239000007789 gas Substances 0.000 claims abstract description 21
- 229920000742 Cotton Polymers 0.000 claims abstract description 20
- 238000010438 heat treatment Methods 0.000 claims abstract description 16
- 230000002572 peristaltic effect Effects 0.000 claims abstract description 15
- 230000007935 neutral effect Effects 0.000 claims abstract description 9
- 239000011521 glass Substances 0.000 claims description 14
- 229910001220 stainless steel Inorganic materials 0.000 claims description 10
- 239000010935 stainless steel Substances 0.000 claims description 10
- 239000005457 ice water Substances 0.000 claims description 6
- 239000008188 pellet Substances 0.000 claims description 6
- 239000006096 absorbing agent Substances 0.000 claims 3
- 238000001514 detection method Methods 0.000 abstract description 27
- 238000004448 titration Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 15
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 14
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 10
- 239000002253 acid Substances 0.000 description 10
- 239000003595 mist Substances 0.000 description 10
- 239000000243 solution Substances 0.000 description 8
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 7
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 6
- 238000004458 analytical method Methods 0.000 description 5
- 238000009833 condensation Methods 0.000 description 3
- 230000005494 condensation Effects 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 238000003916 acid precipitation Methods 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000000443 aerosol Substances 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229910052740 iodine Inorganic materials 0.000 description 1
- 239000011630 iodine Substances 0.000 description 1
- 238000004255 ion exchange chromatography Methods 0.000 description 1
- CEQFOVLGLXCDCX-WUKNDPDISA-N methyl red Chemical compound C1=CC(N(C)C)=CC=C1\N=N\C1=CC=CC=C1C(O)=O CEQFOVLGLXCDCX-WUKNDPDISA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002574 poison Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000012284 sample analysis method Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000012086 standard solution Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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- Sampling And Sample Adjustment (AREA)
Abstract
The utility model relates to the technical field of flue gas detection, and provides a sampling system for sulfur trioxide in smelting flue gas. The sampling system comprises a heating sampling gun, a filter cylinder, a multi-connection bulb tube, an absorption bottle, a peristaltic pump and a wet gas flowmeter which are connected in sequence; the multi-connecting bulb tube is filled with neutral absorbent cotton; the absorption bottle is internally provided with absorption liquid; one end of the multi-connection bulb tube extends below the liquid level of the absorption liquid in the absorption bottle, the absorption bottle is connected with the peristaltic pump through a pipeline, and one end of the pipeline in the absorption bottle is located above the liquid level of the absorption liquid. When the sampling system is used and detected, the requirement on hardware conditions is low, and the use is convenient; the sampling system provided by the utility model is combined with subsequent titration detection by an iodometry, and the obtained test result is stable and high in accuracy.
Description
Technical Field
The utility model belongs to the technical field of flue gas detection, and particularly relates to a sampling system for sulfur trioxide in smelting flue gas.
Background
In the smelting process of zinc, the generated flue gas contains high-concentration sulfur dioxide SO 2 Accompanied by a higher concentration of sulfur trioxide SO 3 。SO 3 The hazards of (a) are mainly represented in the following aspects: (1) Dust and arsenic are carried into the acid making catalyst to block the gas channel and cover the active surface of the catalyst to inactivate the poison; (2) Is easy to condense on the walls of equipment and pipelines to generate serious corrosion; (3) SO (SO) 3 The gas is discharged into the atmosphere to form a blue plume phenomenon, and secondary aerosol and acid rain are generated.
SO in smelting flue gas 3 The detection technology of (2) has been a difficulty for three main reasons: firstly SO in flue gas 3 The concentration is higher, the fluctuation of working conditions is large, and the concentration value range relates to tens of ppm to tens of thousands of ppm; secondly, various acid gases in the flue gas, especially high-concentration SO 2 For SO 3 The interference of the detection result is larger; thirdly, the acid dew point temperature is higher and can reach 180 ℃ at most, and the temperature of high-temperature flue gas generated by the fluidized bed furnace is quite close to the dew point temperature after entering the electric precipitation, so that the sampling is extremely easy to condense, and the accuracy of sampling and detection is limited.
At present, the main detection methods at home and abroad comprise an isopropyl alcohol solution absorption method, a condensation control method, a cotton plug method and the like. The analysis method mainly comprises chemical titration and ion chromatography, and is used for directly or indirectly measuring the sulfate radical concentration in the washing liquid to calculate SO 3 Concentration. The isopropanol absorption method and the condensation control method are the two most commonly used methods at present, and are mainly used for low-concentration SO in coal-fired flue gas 3 Cannot be measured atHigh concentration SO 3 The detection is carried out under the condition. The cotton plug method is a detection means commonly adopted in the sulfuric acid industry, but is applicable to high-concentration SO 3 The collection efficiency is not high, and the accuracy of detection is affected.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provide the sulfur trioxide sampling system suitable for smelting complex flue gas, which is simpler and easier to use, and has stable detection result and high accuracy.
The sampling system for sulfur trioxide in smelting flue gas comprises a heating sampling gun, a filter cylinder, a multi-connection bulb tube, an absorption bottle, a peristaltic pump and a wet gas flowmeter which are connected in sequence; the multi-connecting bulb tube is filled with neutral absorbent cotton; the absorption bottle is internally provided with absorption liquid; one end of the multi-connection bulb tube extends below the liquid level of the absorption liquid in the absorption bottle, the absorption bottle is connected with the peristaltic pump through a pipeline, and one end of the pipeline in the absorption bottle is located above the liquid level of the absorption liquid.
Optionally, a stainless steel sleeve is arranged on the outer side of the gun barrel of the heating sampling gun, and an electric heater is arranged between the gun barrel and the stainless steel sleeve.
Optionally, the diameter of the gun barrel is 6-8 mm.
Optionally, a heat insulation layer is arranged on the outer wall of the stainless steel sleeve.
Optionally, an ice bath box is arranged outside the absorption bottle, ice water is contained in the ice bath box, and the absorption bottle is immersed in the ice water.
Optionally, the multi-connection bulb tube is a triple-connection bulb tube or a six-connection bulb tube, and a plurality of pellets are connected in series through a glass air tube; each small ball is in an elliptic sphere shape, the long axis of each small ball is 25-30 mm, and the short axis is 20-25 mm; the diameter of the glass air pipe is 10mm, and the length of the glass air pipe is 10-20 mm.
Optionally, the absorption bottles are connected in series.
Optionally, a pressure gauge is connected to the wet gas flow meter.
Optionally, the gun head of the heating sampling gun is positioned in the flue.
When the sampling system is used, under the suction of the peristaltic pump, flue gas enters the filter cylinder from the heating sampling gun, and is absorbed by neutral absorbent cotton and absorption liquid in the absorption bottle of the multi-connection bulb tube to finish sampling; then flows through a wet gas flowmeter to measure the flow and the gas pressure, and is discharged. In the sampling process, SO is contained 3 The flue gas of (2) is changed into sulfuric acid mist drops rapidly after being subjected to neutral absorbent cotton wetted by water, and is filtered in the subsequent cotton. The cotton wetted by water absorbs part of sulfur dioxide in the flue gas simultaneously to generate sulfurous acid, and the residual sulfuric acid mist is absorbed by the absorption liquid in the absorption bottle, namely water. During detection and analysis, the concentration of the sulfurous acid and the acidity of the acid mist can be respectively measured, and then the concentration of the sulfur trioxide in the flue gas can be calculated according to the flow and the pressure of the flue gas.
Furthermore, the utility model also adopts the form of an ice bath absorption bottle to carry out the enhanced cooling absorption of the acid gas in the flue gas, thereby improving the SO 3 And absorption efficiency of acid mist. In addition, through the specific arrangement of the electric heater, the insulating layer and the like of the heating sampling gun and the insulating structure, the negative influence of gas condensation on the accuracy of the detection result is avoided. The sampling system of the utility model contains high concentration SO 3 Can fully collect the flue gas to obtain SO 3 Accurate measurement results; when the sampling system is used and detected, the requirement on hardware conditions is low, and the sampling system is convenient to use; the sampling system provided by the utility model is combined with subsequent titration detection by an iodometry, and the obtained test result is stable and high in accuracy.
Drawings
FIG. 1 is a schematic diagram of a system architecture according to an embodiment of the present utility model;
FIG. 2 is a graph of data of a test result curve according to an embodiment of the present utility model.
In the figure, 1-heating sampling gun, 2-electric heater, 3-filter cartridge, 4-multi-connection bulb tube, 5-absorption bottle, 6-peristaltic pump, 7-wet flowmeter, 71-manometer, 72-thermometer, 8-ice bath box.
Detailed Description
The technical scheme of the utility model is described in detail below with reference to the accompanying drawings and the specific embodiments.
The utility model discloses a sampling system for sulfur trioxide in smelting flue gas, which is shown in figure 1 and comprises a heating sampling gun 1, a filter cylinder 3, a multi-connection bulb tube 4, an absorption bottle 5, a peristaltic pump 6 and a wet gas flowmeter 7 which are connected in sequence; the multi-connecting bulb tube 4 is filled with neutral absorbent cotton; the absorption bottle 5 is internally provided with absorption liquid; one end of the multi-connection bulb tube 4 extends below the liquid level of the absorption liquid in the absorption bottle 5, the absorption bottle 5 is connected with the peristaltic pump 6 through a pipeline, and one end of the pipeline in the absorption bottle 5 is located above the liquid level of the absorption liquid. Under the suction of a peristaltic pump 6, the flue gas enters a filter cylinder 3 from a heating sampling gun 1, is absorbed by absorbent cotton of a multi-connection bulb 4 and is absorbed by an absorption bottle 5 to finish sampling; then flows through the wet gas flowmeter 7 to measure the flow rate and the gas pressure, and is discharged.
More specifically, when the device is used, the gun head of the heating sampling gun 1 is positioned in a flue, the flue gas is sampled by the heating sampling gun 1, the flue gas in the flue enters a sampling system through the heating sampling gun 1, then enters the multi-connecting bulb tube 4 through the filter cylinder 3, quickly turns into sulfuric acid mist drops after passing through the first neutral absorbent cotton which is wetted by water, and is filtered in the subsequent cotton. And the cotton moistened by water simultaneously absorbs part of sulfur dioxide in the flue gas to produce sulfurous acid. The remaining sulfuric acid mist is absorbed by the absorption liquid (for example, water) in the absorption bottle 5. The flow and pressure of the flue gas are measured by the wet flowmeter 7 after water absorption, so that the sampling of sulfur trioxide in the smelting flue gas is realized. The acid mist is only acidic, and the sulfurous acid has both acidity and oxidability, so that the concentration of the sulfurous acid and the acidity of the acid mist can be respectively measured during analysis, and then the concentration of the sulfur trioxide in the flue gas can be calculated according to the flow and the pressure of the flue gas.
Preferably, a stainless steel sleeve is arranged on the outer side of the gun barrel of the heating sampling gun 1, and an electric heater 2 is arranged between the gun barrel of the heating sampling gun and the stainless steel sleeve; the above structure forms an electric tracing form in which the electric heater 2 is connected with a power supply through a wire to realize an electric heating function of the gun barrel. In addition, an insulating layer can be arranged on the outer wall of the stainless steel sleeve. More specifically, the heating sampling gun can be made of quartz glass, and an electric heater is arranged between the glass outer wall of the sampling gun and the stainless steel sleeve inner wall so as to ensure that the temperature of sampling smoke is higher than the acid dew point temperature. In this embodiment, the sampling barrel diameter is 6mm.
Preferably, an ice bath box 8 is arranged outside the absorption bottle 5, ice water is contained in the ice bath box 8, and the absorption bottle 5 is immersed in the ice water.
Preferably, the multi-connection bulb tube is a tri-connection bulb tube or a hexa-connection bulb tube, a plurality of pellets are connected in series through a glass air tube, each pellet is in an elliptical shape, the long axis of the pellet is 25-30 mm, and the short axis of the pellet is 20-25 mm; the diameter of the glass air pipe is 10mm, and the length of the glass air pipe is 10-20 mm. In this embodiment, the multi-connection bulb tube 4 is a six-connection bulb tube, the material is hard glass, each small ball is ellipsoidal, the major axis is 25mm, the minor axis is 20mm, each small ball is connected in series through a glass air tube, the diameter of the air tube is 10mm, and the length of the air tube at the inlet and outlet is 15mm.
Preferably, the number of the absorption bottles is a plurality, for example 2, in series, so as to form two-stage absorption. That is, the outlet end of the multi-connected bulb tube is connected with the first absorption bottle, stretches into the first absorption bottle below the absorption liquid level, the outlet port of the air outlet pipeline of the first absorption bottle is positioned above the absorption liquid level, is connected with the second absorption bottle outwards and stretches into the second absorption bottle below the absorption liquid level, the outlet port of the air outlet pipeline of the second absorption bottle is positioned above the absorption liquid level, is connected with the peristaltic pump outwards, and the absorbed tail gas sequentially passes through the peristaltic pump and the wet gas flowmeter and is discharged outwards.
Preferably, a pressure gauge 71 and a temperature gauge 72 are further provided at the wet gas flow meter 7 for detecting fluid parameters such as flow rate and pressure of the gas.
Preferably, peristaltic pump 6 creates vacuum suction by squeezing the air tube, and peristaltic pump 6 can control the suction flow rate through variable frequency. The hose of the peristaltic pump 6 in the embodiment is made of corrosion-resistant materials, and the air extraction rate is controlled to be 0.5-2L/min.
A specific sampling and detection process of the sampling system of the embodiment is as follows:
before sampling, 3g of neutral absorbent cotton is weighed and evenly put into a multi-connected bulb, and 3-5mL of water is added into the first glass bulb at the inlet to evenly wet the first glass bulb. Flue gas in the flue enters from the sampling gun head, enters into the multi-connection bulb through the electric tracing and the filter cylinder, quickly becomes sulfuric acid mist drops after passing through the first neutral cotton which is wetted by water, and is filtered in the subsequent cotton. And the cotton moistened by water simultaneously absorbs part of sulfur dioxide in the flue gas to produce sulfurous acid. The remaining sulfuric acid mist is absorbed by the water under the ice bath. The flow and pressure of the flue gas are measured by the wet flowmeter through the flue gas after water absorption.
Subsequently, detection is performed: and taking out all cotton in the multi-connection bulb tube, putting the cotton into a beaker, pouring water in an absorption bottle into the beaker, washing the absorption bottle and the multi-connection bulb tube with clear water, pouring washing water into the beaker to obtain liquid to be detected, and performing detection titration. And (3) firstly titrating sulfur dioxide absorbed in the liquid to be detected by using a standard iodine solution, and then titrating the total acid amount by using a standard sodium hydroxide solution. And then calculating the concentration of sulfur trioxide according to the quantity of the standard liquid consumed during dripping and the volume of the collected gas sample. Meanwhile, SO can be identified by titration with an iodometry 2 Thus, through the present sampling system and the present detection method, SO 2 Is not affected by the synchronous absorption of (a) and (b) 3 Is a result of detection of (a).
An embodiment of the foregoing detection titration method is as follows: about 250mL of the solution to be detected, 10mL of 0.5% starch solution is taken as an indicator, and 0.01mol/L I is taken as an indicator 2 The standard solution was titrated to a pale blue color and then was treated with 0.01mol/L Na 2 S 2 O 3 The solution was bluish and 2-3 drops of methyl red indicator were added and titrated to the end of orange color with 0.01mol/L sodium hydroxide solution.
To compare the advantages of the present utility model, different SOs are compared 3 The results of the sample analysis method are shown in Table 1. When imported SO 3 SO tested by controlled condensing method at theoretical concentration of 493ppm 3 At a concentration of 125ppm, indicating a large amount of SO 3 Is not condensed. SO tested using isopropanol absorption and conventional tampon methods 3 The results were 405 and 395ppm, respectively, which were much lower. With the sampling system and the corresponding detection method (i.e. improvement)Tampon method of (a) SO at different concentrations 3 The detection results were 490ppm, 950ppm and 1900ppm, respectively, and the errors were 0.6%, 3.5% and 1.8%, respectively. The data result shows that the sampling system and the detection method thereof can be suitable for a wider detection range and can be used for higher or lower SO 3 The accuracy is high under the concentration.
TABLE 1 SO under laboratory conditions 3 Concentration detection results
And also examine the sampling time to SO 3 As shown in FIG. 2, the sampling time is set to 5, 10, 15, 20, 30 and 60min, SO 3 The average value of the detection results is 900ppm, and the sampling time has little influence on the detection results and can be ignored.
In order to further verify the operability of the sampling system on the actual flue gas condition, SO in the flue gas of different procedures of a zinc smelting enterprise 3 Sampling analysis was performed and the results are shown in table 2.
TABLE 2 SO under actual smelting flue gas conditions 3 Concentration measurement (mg/m) 3 )
Through the sampling analysis practice on site, sampling personnel react the method and operate simply, the equipment is light, the accuracy of the test result is higher, and the concentration of sulfur trioxide in actual flue gas can be reflected.
The utility model has been described in detail in connection with the specific embodiments and exemplary examples thereof, but such description is not to be construed as limiting the utility model. It will be understood by those skilled in the art that various equivalent substitutions, modifications or improvements may be made to the technical solution of the present utility model and its embodiments without departing from the spirit and scope of the present utility model, which fall within the scope of the patent protection.
Claims (9)
1. The sampling system for sulfur trioxide in smelting flue gas is characterized by comprising a heating sampling gun, a filter cylinder, a multi-connection bulb tube, an absorption bottle, a peristaltic pump and a wet gas flowmeter which are connected in sequence; the multi-connecting bulb tube is filled with neutral absorbent cotton; the absorption bottle is internally provided with absorption liquid; one end of the multi-connection bulb tube extends below the liquid level of the absorption liquid in the absorption bottle, the absorption bottle is connected with the peristaltic pump through a pipeline, and one end of the pipeline in the absorption bottle is located above the liquid level of the absorption liquid.
2. The sampling system of claim 1, wherein a stainless steel sleeve is disposed outside of the barrel of the heated sampling gun, and an electric heater is disposed between the barrel and the stainless steel sleeve.
3. The sampling system of claim 2, wherein the barrel diameter is 6-8 mm.
4. The sampling system of claim 2, wherein the stainless steel sleeve outer wall is provided with a thermally insulating layer.
5. The sampling system of claim 1, wherein an ice bath is disposed outside the absorber bottle, ice water is contained in the ice bath, and the absorber bottle is immersed in the ice water.
6. The sampling system of claim 1, wherein the multi-jointed bulb is a tri-jointed bulb or a hexa-jointed bulb, connected in series by a plurality of pellets through a glass gas tube; each small ball is in an elliptic sphere shape, the long axis of each small ball is 25-30 mm, and the short axis is 20-25 mm; the diameter of the glass air pipe is 10mm, and the length of the glass air pipe is 10-20 mm.
7. The sampling system of claim 1, wherein the absorber bottle is a plurality of in-line.
8. The sampling system of claim 1, wherein the wet gas flow meter is connected to a pressure meter.
9. The sampling system of any one of claims 1 to 8, wherein a tip of the heated sampling gun is positioned within the flue.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321578575.2U CN220154024U (en) | 2023-06-20 | 2023-06-20 | Sampling system for sulfur trioxide in smelting flue gas |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321578575.2U CN220154024U (en) | 2023-06-20 | 2023-06-20 | Sampling system for sulfur trioxide in smelting flue gas |
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| CN220154024U true CN220154024U (en) | 2023-12-08 |
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| CN (1) | CN220154024U (en) |
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