CN214693328U - Sulfur-containing waste gas treatment device of liquid sulfur storage system - Google Patents
Sulfur-containing waste gas treatment device of liquid sulfur storage system Download PDFInfo
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- CN214693328U CN214693328U CN202120422794.6U CN202120422794U CN214693328U CN 214693328 U CN214693328 U CN 214693328U CN 202120422794 U CN202120422794 U CN 202120422794U CN 214693328 U CN214693328 U CN 214693328U
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Abstract
The utility model belongs to the technical field of contain sulphur waste gas treatment, a contain sulphur waste gas treatment device of liquid sulphur storage system is related to. The device comprises a waste gas collecting cover, a water washing device, a supercharging device, a sulfur recovery device and a sedimentation device, wherein the waste gas collecting cover is covered above an escape pipe of a liquid sulfur storage system, and a gas outlet of the waste gas collecting cover is connected with a gas inlet of the water washing device; the gas outlet of the water washing device is connected with the sulfur recovery device, and a supercharging device is arranged on a gas line between the water washing device and the sulfur recovery device; the water outlet of the water washing device is connected with the sedimentation device. The utility model sends the sulfur-containing waste gas of the sulfur-removing steam to the sulfur recovery device to be fedStep treatment, namely sulfur smoke SO can be eliminated no matter the sulfur is fed into a sulfur-making combustion furnace or directly combusted2The influence of the emission concentration saves the air supply of a sulfur production blower or a tail gas blower, and does not produce other influences on a sulfur recovery device.
Description
Technical Field
The utility model belongs to the technical field of contain sulphur waste gas treatment, a contain sulphur waste gas treatment device of liquid sulphur storage system is related to.
Background
The sulfur recovery device is an important environment-friendly device for centralized treatment of acid gas of refining enterprises, and a liquid sulfur storage tank and a liquid sulfur loading system for liquid sulfur storage are generally arranged on a large sulfur recovery device with liquid sulfur as a product. Because the liquid sulfur contains a certain amount of hydrogen sulfide, especially for the liquid sulfur with incomplete degassing, 100-300 ppm of hydrogen sulfide and trace amount of sulfur fog drops of the sulfur-containing waste gas can be dissipated from the top of a liquid sulfur storage tank and a liquid sulfur truck. For liquid sulfur storage tanks, the volume of gas evolved is typically-300 Nm3Per h, up to 1000Nm in the feed3H; for liquid sulfur loading systems, the volume of gas escaping from the tanker is typically-100 Nm3And the loading time is 0.5-8 h. The gas contains high-toxicity gas hydrogen sulfide and easily solidified liquid sulfur droplets, so that if the gas is not treated in time, the environment is polluted, and in severe cases, operators are poisoned, and the health of the operators is damaged. Therefore, the treatment of sulfur-containing waste gas such as the top of a liquid sulfur storage tank, a liquid sulfur truck and the like is urgently needed.
At present, most of sulfur-containing waste gas such as liquid sulfur storage tank tops, liquid sulfur trucks and the like in China is not treated, and the process technology basically adopted by enterprises for treatment is a sodium-alkali wet desulphurization technology. The sodium-alkali wet desulphurization technology generally comprises a sulfur seal tank, a water washing tower, a sulfur filter, a circulating pump, alkali liquor absorption equipment, an alkali liquor storage tank, an alkali residue storage tank, supercharging equipment, an alkali liquor delivery pump and the like. The process has the advantages of complex flow, high one-time investment and high operation cost, and needs to treat the caustic sludge regularly; in addition, the liquid sulfur storage tank and the liquid sulfur tank car are operated in a closed mode, and the risk of overpressure or too low pressure still exists in the production process, so that the liquid sulfur storage tank or the liquid sulfur tank car is burst or shriveled, and the large safe operation risk exists.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a liquid sulphur storage system's sulphur waste gas treatment device that contains, under the prerequisite of guaranteeing liquid sulphur storage tank, liquid sulphur tank wagon safe operation, will contain sulphur waste gas and receiveAfter being collected, the liquid sulfur in the waste gas is removed by washing, and then the waste gas is pressurized by a booster fan or a liquid ring compressor and then is sent to a sulfur production combustion furnace (process 1) or a tail gas combustion furnace (process 2) to be used as a combustion-supporting medium. By adopting the process 1, hydrogen sulfide in the sulfur-containing waste gas enters the sulfur-making combustion furnace for further Clause reaction, and the SO discharged by the flue gas of the sulfur device is not influenced2The concentration of (c). Adopting the process 2, wherein hydrogen sulfide in the sulfur-containing waste gas enters a tail gas incinerator for further combustion reaction to generate SO2Further treated by the flue gas desulfurization unit of the sulfur recovery device without influencing the emission of SO2The concentration of (c).
In order to achieve the purpose, the utility model is realized by adopting the following technical scheme:
the utility model provides a sulfur-containing waste gas treatment device of a liquid sulfur storage system, which comprises a waste gas collecting cover, a washing device, a supercharging device, a sulfur recovery device and a sedimentation device, wherein the waste gas collecting cover is arranged above a dissipation pipe of the liquid sulfur storage system, and a gas outlet of the waste gas collecting cover is connected with a gas inlet of the washing device; the gas outlet of the water washing device is connected with the sulfur recovery device, and a supercharging device is arranged on a gas line between the water washing device and the sulfur recovery device; the water outlet of the water washing device is connected with the sedimentation device.
Further, the sulfur recovery device comprises a sulfur production combustion furnace or a tail gas incinerator.
Furthermore, the sedimentation device comprises a sedimentation tank or a sedimentation tank, and a wastewater outlet of the sedimentation device is connected with a sewage treatment system.
Further, the supercharging device comprises a booster fan or a liquid ring compressor.
Further, the gas path between the waste gas collecting cover and the water washing device is a heat tracing pipeline.
Further, the heat tracing adopts electric heat tracing or steam jacket heat tracing.
Further, the liquid sulfur storage system comprises a liquid sulfur storage tank and a liquid sulfur tank truck.
Furthermore, a heat tracing device is arranged outside the waste gas collecting cover, and a sulfur receiving plate is arranged between the waste gas collecting cover and a dissipation pipe of the liquid sulfur storage system.
Adopt above-mentioned technical scheme, the beneficial effects of the utility model are that:
(1) the utility model discloses send the sulphur waste gas that contains of desorption sulphur vapour to sulphur recovery unit further processing, no matter get into the system sulphur and fire burning furnace or direct combustion, all can eliminate sulphur flue gas SO2The influence of the emission concentration saves the air supply of a sulfur production blower or a tail gas blower, and does not produce other influences on a sulfur recovery device.
(2) The utility model can eliminate the odor near the air vent of the liquid sulfur storage tank and the tank car, and reach the factory perimeter odor emission standard (H)2S＜0.06mg/m3)。
(3) The utility model discloses the solid sulphur of periodic cleaning returns to the quality requirement that does not influence first-class article of liquid sulphur in liquid sulphur pond or the liquid sulphur storage tank.
(4) The utility model discloses load adaptability is strong, can satisfy the continuous safe operation under the different operating modes such as liquid sulphur storage tank feeding or loading.
(5) The utility model has the advantages of low equipment investment, high material safety, short process flow, low energy consumption, land occupation saving, safe and reliable process, and no process and equipment with larger danger; the air supply quantity of the fan of the sulfur recovery device is saved, and the operation cost is low.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.
In the drawings:
FIG. 1 is a schematic view showing the structure of a sulfur-containing waste gas treatment apparatus for a liquid sulfur storage tank according to example 1;
FIG. 2 is a schematic view of the structure of the sulfur-containing exhaust gas treatment device of the liquid sulfur truck of embodiment 2;
the respective symbols in the figure are as follows: the method comprises the following steps of 1-liquid sulfur storage system, 2-waste gas collection cover, 3-water washing device, 4-supercharging device, 5-sulfur recovery device and 6-settling device.
Detailed Description
In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.
The present invention will be further explained with reference to the accompanying drawings.
As shown in fig. 1 and 2, a sulfur-containing waste gas treatment device of a liquid sulfur storage system comprises a waste gas collecting cover 2, a water washing device 3, a pressurizing device 4, a sulfur recovery device 5 and a settling device 6.
The waste gas collecting cover is arranged above the escaping pipe of the liquid sulfur storage system 1, and the heat tracing device is arranged outside the waste gas collecting cover, so that sulfur vapor in sulfur-containing waste gas escaping from the liquid sulfur storage tank or the tank car is prevented from condensing into solid sulfur when encountering cold air sucked into the waste gas collecting cover. And a sulfur receiving plate is arranged between the waste gas collecting cover and the dissipation pipe of the liquid sulfur storage system, and the function of collecting solid sulfur is achieved. The gas outlet of the waste gas collecting cover is connected with the gas inlet of the washing device. The water washing device can selectively treat sulfur-containing waste gas with the capacity of 1000-3000 Nm3A water bath dust removal device.
The gas outlet of the water washing device is connected with the sulfur recovery device, and a supercharging device is arranged on a gas line between the water washing device and the sulfur recovery device; the water outlet of the water washing device is connected with the sedimentation device.
The hydrogen sulfide post-treatment device comprises a sulfur production combustion furnace or a tail gas incinerator.
The sedimentation device comprises a sedimentation tank or a sedimentation tank, and a wastewater outlet of the sedimentation device is connected with the sewage treatment system.
The supercharging device comprises a booster fan or a liquid ring compressor. The booster fan or the liquid ring compressor is used for boosting the sulfur-containing waste gas so as to be conveniently sent into a sulfur-making combustion furnace or a tail gas combustion furnace of the sulfur recovery device, and the outlet pressure is 0.050-0.095 Mpag.
The gas path between the waste gas collecting cover and the water washing device is a heat tracing pipeline.
The heat tracing adopts electric heat tracing or steam jacket heat tracing.
The liquid sulfur storage system comprises a liquid sulfur storage tank and a liquid sulfur tank car.
In order to avoid repetition, the raw materials and preparation condition parameters related to this specific embodiment are described below in a unified manner, and are not described in detail in the specific embodiment:
in the step (1), the waste gas collecting cover is required to be arranged on a vent hole of the liquid sulfur storage tank or a crane pipe of the liquid sulfur tank car, and a certain gap is required to be reserved between the waste gas collecting cover and the liquid sulfur storage tank or the tank car in order to prevent the storage tank or the tank car from being damaged due to overpressure operation. The waste gas collecting cover is operated under micro negative pressure (-0.0001 to-0.0002 Mpag) to prevent the sulfur-containing waste gas from escaping into the atmosphere.
And (3) after the sulfur-containing waste gas in the step (2) is collected by the waste gas collecting cover, pumping the sulfur-containing waste gas to a water washing device through a draught fan arranged on the water washing device. After washing, sulfur vapor in the sulfur-containing waste gas is completely condensed into solid sulfur when meeting water, and the washed sulfur-containing waste gas is sent to a booster fan or a liquid ring compressor for boosting by a self-contained induced draft fan. The water bath dust removing equipment with larger selection capacity has the following functions:
firstly, preventing sulfur-containing waste gas dissipated by a liquid sulfur storage tank or a liquid sulfur tank car from entering atmosphere to pollute the atmosphere;
secondly, the water bath dust removal capacity is larger than the amount of sulfur-containing waste gas escaped from the liquid sulfur storage tank or the liquid sulfur tanker, so that a large amount of air is pumped to the water washing device, and the part of air is sent to the sulfur recovery device to replace part of combustion-supporting medium of the sulfur-making combustion furnace or the tail gas combustion furnace.
And (3) the suction pressure of the water washing device with the draught fan in the step (2) needs to break through the liquid level height of the water washing device, the outlet pressure is 0.001-0.002 Mpag, and the operating temperature is 40 ℃.
And (3) pressurizing the sulfur-containing waste gas by a booster fan or a liquid ring compressor, and then sending the sulfur-containing waste gas to an air supply main line of a sulfur production combustion furnace (process 1) or a tail gas incinerator (process 2), wherein the outlet pressure is 0.050-0.095 Mpag. The process 1 is adopted, wherein hydrogen sulfide in the sulfur-containing waste gas enters a sulfur-making combustion furnace for further Clause reaction. Adopting the process 2, wherein hydrogen sulfide in the sulfur-containing waste gas enters a tail gas incinerator to carry out combustion reaction to generate SO2Flue gas passing through a sulfur recovery deviceThe sulfur unit is further processed.
Specific sulfur-containing waste gas direction can be selected by referring to the following:
if the sulfur recovery device is not provided with a flue gas desulfurization device, sulfur-containing waste gas can be sent to a sulfur production combustion furnace, hydrogen sulfide in the waste gas and acid gas generate a Clause reaction in the sulfur production combustion furnace, and the hydrogen sulfide and the acid gas are subsequently treated by the sulfur recovery device to be recovered into a small amount of sulfur, SO that the flue gas SO of the sulfur recovery device caused by the waste gas is eliminated2The effect of the emission concentration.
The sulfur-containing waste gas can supply oxygen for the Clause reaction, so that the air supply amount of a sulfur production blower is correspondingly reduced, and other influences on a sulfur recovery device are avoided.
Secondly, if the sulfur recovery device is provided with a flue gas desulfurization device, the sulfur-containing waste gas can be sent to a tail gas incinerator, and hydrogen sulfide in the waste gas generates combustion reaction in the tail gas incinerator to generate SO2After the subsequent treatment of the flue gas desulfurization device, the flue gas SO of the sulfur recovery device caused by the waste gas can be eliminated2The effect of the emission concentration.
The oxygen in the sulfur-containing waste gas can be a combustion-supporting medium of the tail gas incinerator, so that the air supply amount of a tail gas blower is correspondingly reduced, and other influences on subsequent devices are not generated.
And (4) the wastewater containing the solid sulfur particles replaced by the water washing device in the step (4) enters a settling tank or a sedimentation tank, and the wastewater enters a sewage system after settling. The sulfur precipitated in the settling tank or the settling pond is periodically cleaned and then returns to the liquid sulfur pool or the liquid sulfur storage tank to be secondarily melted into liquid sulfur, and the precipitated sulfur contains a small amount of water and returns to the liquid sulfur pool or the liquid sulfur storage tank without influencing the quality of the liquid sulfur.
Example 1
Covering a waste gas collecting cover on the air vent of the liquid sulfur storage tank, and then dissipating 300Nm of the liquid sulfur storage tank through a draught fan arranged on the water washing device3/h Sulfur-containing waste gas and 2700Nm3Pumping the air/h to a water washing device, wherein the operating pressure in a waste gas collecting cover is-0.0001 Mpag, and the pipeline from the waste gas collecting cover to the water washing device adopts a steam jacket for heat tracing to prevent the sulfur steam in the waste gas from being solidified;
about 3000Nm3H containing sulfurAfter the waste gas is washed by the water washing device, the sulfur-containing waste gas without sulfur vapor is sent to a booster fan through an induced draft fan carried by the water washing device, and the outlet pressure of the induced draft fan is 0.001 Mpag. Wherein, sulfur vapor in the sulfur-containing waste gas is rapidly quenched when meeting water and then becomes solid sulfur, and enters a settling tank along with the waste water discharged by replacement;
after being pressurized to 0.095Mpag by a booster fan, the mixture is sent to an outlet pipe of a sulfur production blower of a sulfur recovery device to be upward and mixed with air to enter a sulfur production combustion furnace. Wherein, the hydrogen sulfide is subjected to a Clause reaction in a furnace, and oxygen is used for supplying oxygen for the Clause reaction;
after the wastewater entering the settling tank is precipitated, the solid sulfur in the wastewater is precipitated at the bottom of the tank, and the wastewater automatically flows into a sewage treatment system in a factory. The sulfur at the bottom of the tank is cleaned once in one month, and the cleaned solid sulfur is poured into a liquid sulfur pool, melted and then sent to a liquid sulfur storage tank along with other liquid sulfur.
By adopting the process, the odor around the vent hole at the top of the liquid sulfur storage tank can be eliminated, and the purpose of reaching the perimeter H of a plant area2S＜0.06mg/m3The emission standard of (2) can also change hydrogen sulfide in the waste gas into valuable, further recover sulfur, and recycle the flue gas SO of the sulfur recovery device2The emission concentration has no influence.
Example 2
When liquid sulfur is loaded, the waste gas collecting cover is covered on the crane pipe of the liquid sulfur tank car, and then 100Nm of the liquid sulfur tank car is dissipated by the induced draft fan arranged on the water washing device3Per hour of sulfur-containing waste gas and 900Nm3Pumping the air to a water washing device at the pressure of-0.00015 Mpag in the waste gas collecting cover, and carrying out heat tracing on a pipeline from the waste gas collecting cover to the water washing device by using a steam jacket to prevent sulfur steam in the waste gas from being solidified;
about 1000Nm3And after the sulfur-containing waste gas is washed by the water washing device, the sulfur-containing waste gas without sulfur vapor is conveyed to a booster fan by an induced draft fan carried by the water washing device, and the outlet pressure of the induced draft fan is 0.001 Mpag. Wherein, sulfur vapor in the sulfur-containing waste gas is rapidly quenched when meeting water and then becomes solid sulfur, and enters a settling tank along with the waste water discharged by replacement;
after being pressurized to 0.095Mpag by a booster fan, the mixture is sent to an outlet pipe of a sulfur production blower of a sulfur recovery device to be upward and mixed with air to enter a sulfur production combustion furnace. Wherein, the hydrogen sulfide is subjected to a Clause reaction in a furnace, and oxygen is used for supplying oxygen for the Clause reaction;
after the wastewater entering the settling tank is precipitated, the solid sulfur in the wastewater is precipitated at the bottom of the tank, and the wastewater automatically flows into a sewage system in a factory. The sulfur at the bottom of the tank is cleaned once in about three months, the cleaned solid sulfur is poured into a liquid sulfur pool, and is delivered to a liquid sulfur storage tank along with other liquid sulfur after being melted.
By adopting the process, the odor around the liquid sulfur truck can be eliminated, and the perimeter H of a plant area can be reached2S＜0.06mg/m3The emission standard of (2) can also change hydrogen sulfide in the waste gas into valuable, further recover sulfur, and recycle the flue gas SO of the sulfur recovery device2The emission concentration has no influence.
Example 3
Covering a waste gas collecting cover on the air vent of the liquid sulfur storage tank, and then dissipating 300Nm of the liquid sulfur storage tank through a draught fan arranged on the water washing device3Per hour of sulfur-containing waste gas and 2000Nm3Pumping the air/h to a water washing device, wherein the operating pressure in a waste gas collecting cover is-0.0001 Mpag, and the pipeline from the waste gas collecting cover to the water washing device adopts a steam jacket for heat tracing to prevent the sulfur steam in the waste gas from being solidified;
about 2300Nm3And after the sulfur-containing waste gas is washed by the water washing device, the sulfur-containing waste gas without sulfur vapor is sent to the liquid ring compressor by an induced draft fan carried by the water washing device, and the outlet pressure of the induced draft fan is 0.001 Mpag. Wherein, sulfur vapor in the sulfur-containing waste gas is rapidly quenched when meeting water and then becomes solid sulfur, and enters a sedimentation tank along with the waste water discharged by replacement;
pressurizing to 0.050Mpag by a liquid ring compressor, sending to an outlet pipe of a tail gas blower of the sulfur recovery device, making the outlet pipe upward, mixing with air, and then entering into a tail gas incinerator. Wherein the hydrogen sulfide is subjected to combustion reaction in the furnace to generate SO2The SO can be achieved by the subsequent desulfurization of the flue gas desulfurization device2Emission index, oxygen is supplied for combustion reaction;
after the wastewater entering the sedimentation tank is precipitated, solid sulfur in the wastewater is precipitated at the bottom of the sedimentation tank, and the wastewater automatically flows into a sewage system in a factory. The sulfur at the bottom of the pool is cleaned once in one month, the cleaned solid sulfur is poured into a liquid sulfur storage tank, and is delivered to a liquid sulfur truck along with other liquid sulfur after being melted.
By adopting the process, the odor around the vent hole at the top of the liquid sulfur storage tank can be eliminated, and the purpose of reaching the perimeter H of a plant area2S＜0.06mg/m3The emission standard of (2) can also change hydrogen sulfide in the waste gas into valuable, further recover sulfur, and recycle the flue gas SO of the sulfur recovery device2The emission concentration has no influence.
Example 4
When liquid sulfur is loaded, the waste gas collecting cover is covered on the crane pipe of the liquid sulfur tank car, and then 150Nm of the escaped liquid sulfur tank car is dissipated by the induced draft fan arranged on the water washing device3Per hour of sulfur-containing waste gas and 1050Nm3Pumping the air to a water washing device at the pressure of-0.00015 Mpag in the waste gas collecting cover, and carrying out heat tracing on a pipeline from the waste gas collecting cover to the water washing device by using a steam jacket to prevent sulfur steam in the waste gas from being solidified;
about 1200Nm3And after the sulfur-containing waste gas is washed by the water washing device, the sulfur-containing waste gas without sulfur vapor is sent to the liquid ring compressor by an induced draft fan carried by the water washing device, and the outlet pressure of the induced draft fan is 0.001 Mpag. Wherein, sulfur vapor in the sulfur-containing waste gas is rapidly quenched when meeting water and then becomes solid sulfur, and enters a sedimentation tank along with the waste water discharged by replacement;
pressurizing to 0.050Mpag by a liquid ring compressor, sending to an outlet pipe of a tail gas blower of the sulfur recovery device, making the outlet pipe upward, mixing with air, and then entering into a tail gas incinerator. Wherein the hydrogen sulfide is subjected to combustion reaction in the furnace to generate SO2The SO can be achieved by the subsequent desulfurization of the flue gas desulfurization device2Emission index, oxygen is supplied for combustion reaction;
after the wastewater entering the sedimentation tank is precipitated, solid sulfur in the wastewater is precipitated at the bottom of the sedimentation tank, and the wastewater automatically flows into a sewage system in a factory. The sulfur at the bottom of the pool is cleaned once in about three months, the cleaned solid sulfur is poured into a liquid sulfur storage tank, and is delivered to a liquid sulfur truck again along with other liquid sulfur after being melted.
By adopting the process, the odor around the liquid sulfur truck can be eliminated, and the perimeter H of a plant area can be reached2S＜0.06mg/m3The emission standard of (2) can change hydrogen sulfide in the waste gas into valuable, and further return the waste gasCollecting sulfur and recovering sulfur from flue gas SO of sulfur recovery device2The emission concentration has no influence.
It is to be understood that the present invention has been described in detail with reference to the foregoing embodiments, and that modifications and equivalents of the various embodiments described above may be made by those skilled in the art, or some of the technical features may be substituted. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The sulfur-containing waste gas treatment device of the liquid sulfur storage system is characterized by comprising a waste gas collecting cover (2), a washing device (3), a supercharging device (4), a sulfur recovery device (5) and a settling device (6), wherein the waste gas collecting cover (2) is covered above a dissipation pipe of the liquid sulfur storage system (1), and a gas outlet of the waste gas collecting cover (2) is connected with a gas inlet of the washing device (3); the air outlet of the water washing device (3) is connected with a sulfur recovery device (5), and a supercharging device (4) is arranged on an air path pipeline between the water washing device and the sulfur recovery device; the water outlet of the water washing device (3) is connected with the sedimentation device (6).
2. The sulfur-containing exhaust gas treatment device of a liquid sulfur storage system according to claim 1, wherein the sulfur recovery device (5) comprises a sulfur production combustion furnace or a tail gas incinerator.
3. The sulfur-containing waste gas treatment device of a liquid sulfur storage system according to claim 1, wherein the settling device (6) comprises a settling tank or a sedimentation basin, and a waste water outlet of the settling device (6) is connected with a sewage treatment system.
4. The sulfur-containing exhaust gas treatment device of a liquid sulfur storage system according to claim 1, wherein the pressure boosting device (4) comprises a booster fan or a liquid ring compressor.
5. The sulfur-containing exhaust gas treatment device of a liquid sulfur storage system according to claim 1, wherein the gas path relationship between the exhaust gas collecting hood (2) and the water washing device (3) is a heat tracing line.
6. The sulfur-containing exhaust gas treatment device of a liquid sulfur storage system according to claim 5, wherein the heat tracing employs electric heat tracing or steam jacket heat tracing.
7. The sulfur-containing exhaust gas treatment device of a liquid sulfur storage system according to any one of claims 1 to 6, wherein the liquid sulfur storage system (1) comprises a liquid sulfur storage tank and a liquid sulfur tanker.
8. The sulfur-containing waste gas treatment device of the liquid sulfur storage system according to claim 7, wherein a heat tracing device is arranged outside the waste gas collecting hood (2), and a sulfur receiving plate is arranged between the waste gas collecting hood (2) and the dissipation pipe of the liquid sulfur storage system (1).
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