CN217613972U - Sulfur acid production tail gas treatment device - Google Patents
Sulfur acid production tail gas treatment device Download PDFInfo
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- CN217613972U CN217613972U CN202221290647.9U CN202221290647U CN217613972U CN 217613972 U CN217613972 U CN 217613972U CN 202221290647 U CN202221290647 U CN 202221290647U CN 217613972 U CN217613972 U CN 217613972U
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- 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
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- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
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Abstract
The utility model relates to a tail gas treatment device for sulfur acid production, which comprises an ammonia water preparation system, a tail gas absorption system and a tail gas absorption liquid collection and utilization system, wherein the ammonia water preparation system is connected with the tail gas absorption system through a pipeline; the tail gas absorption system comprises more than two absorption towers, a settling tower and a chimney which are sequentially connected through a pipeline, liquid inlets of the absorption towers are respectively connected with the ammonia water preparation system, and liquid outlets of the absorption towers are respectively connected with the tail gas absorption liquid collection and utilization system. The utility model discloses utilize neutralization reaction, get rid of the pollutant in the tail gas, through setting up a plurality of absorption towers, make the acid gas in the tail gas fully react for tail gas absorption liquid that arrives can recycle, as the raw and other materials of production ammonium persulfate, the energy can be saved and the cost.
Description
Technical Field
The utility model relates to a sulfur acid production tail gas treatment device.
Background
At present, the devices for preparing acid by using sulfur on the market all adopt solid sulfur as a raw material, and prepare a sulfuric acid product through the procedures of sulfur melting, sulfur burning, conversion, absorption and the like, and a pollution gas containing sulfur dioxide is generated in the process of preparing sulfuric acid, wherein the sulfur dioxide is a global atmospheric pollutant, and the pollution is more harmful, and mainly forms acid rain. In addition, sulfur dioxide in the environment can be absorbed into blood to produce toxic effect on the whole body, and the sulfur dioxide can destroy the activity of enzyme, thereby obviously influencing the metabolism of carbohydrate and protein and having certain damage to the liver. The health of our bodies is damaged, and the harm is brought to our life and production, so the tail gas must be treated, and the tail gas is discharged after reaching the standard after being subjected to deep purification treatment.
The tail gas of the sulfur-containing acid is generally sprayed and absorbed by a primary sodium hydroxide solution in the market, but the obtained tail absorption liquid is useless, resources are wasted, ammonia water is used as a raw material in the market to remove the tail gas of the sulfur-containing acid, the tail gas obtained by treatment does not reach the standard, and the tail gas is harmful to the environment and human beings, so that the sulfur-containing tail gas treatment device has the sulfur dioxide content in the tail gas of less than 20g/m < 3 > and can be collected and utilized.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a sulfur acid production tail gas treatment device that absorption efficiency is higher than national requirement far away and tail imbibition can be collected and utilized is provided.
In order to solve the above problems, the utility model adopts the following technical scheme:
a tail gas treatment device for sulfur-producing acid comprises an ammonia water preparation system, a tail gas absorption system and a tail gas absorption liquid collecting and utilizing system, wherein the ammonia water preparation system is connected with the tail gas absorption system through a pipeline; the tail gas absorption system comprises more than two absorption towers, a settling tower and a chimney which are sequentially connected through a pipeline, a liquid inlet of each absorption tower is respectively connected with an ammonia water preparation system, and a liquid outlet of each absorption tower is respectively connected with a tail gas absorption liquid collection and utilization system.
As an embodiment of the utility model, the aqueous ammonia configuration system includes that the aqueous ammonia prepares the jar, prepares the pure water holding vessel that the jar is connected and prepares the liquid ammonia holding vessel that the jar is connected with the aqueous ammonia.
As an embodiment of the utility model, the gas outlet on the upper part of the ammonia water preparation tank is connected with the absorption tower through a pipeline.
As an embodiment of the utility model, the absorption tower sets up to two, including one-level absorption tower and second grade absorption tower, the one-level absorption tower passes through the pipeline and is connected with the second grade absorption tower.
As an embodiment of the utility model, the system is collected and utilized to tail gas absorption liquid includes the absorption liquid holding vessel, the ammonium workshop has been crossed through the pipe connection to the absorption liquid holding vessel liquid outlet.
As an embodiment of the utility model, all be provided with third shower head and fourth shower head in one-level absorption tower and the second grade absorption tower, third shower head and fourth shower head pass through the pipeline respectively with one-level absorption tower and second grade absorption tower sub-unit connection, third shower head and fourth shower head spray the setting downwards.
As an embodiment of the utility model, all set up first double-deck baffle and the double-deck baffle of second in one-level absorption tower and the second grade absorption tower, and set up in corresponding shower head lower part.
As an embodiment of the utility model, the chimney lower part is provided with the flue gas on-line monitoring device who is arranged in the relevant data of real-time detection tail gas.
As an embodiment of the present invention, a third double-layer partition board for enhancing the sedimentation effect is provided in the sedimentation tower.
As an embodiment of the present invention, the air inlet in the settling tower is further provided with a flow shielding plate for increasing the movement track of the tail gas.
Adopt the produced beneficial effect of above-mentioned technical scheme to lie in:
the utility model discloses utilize the alkalescence of aqueous ammonia and the acid gas in the tail gas to carry out neutralization reaction, get rid of the pollutant in the tail gas, through setting up a plurality of absorption towers, make the acid gas fully react in the tail gas, the normal operating of each index of favourable assurance tail gas. Meanwhile, tail gas absorption liquid obtained after the reaction can be recycled and used as a raw material for producing ammonium persulfate, so that energy and cost are saved.
The utility model discloses a set up the settling tower, can make the gas-liquid separate, effectively get rid of acid mist, impurity in the system acid tail gas simultaneously, the effect is stable, and can not consume the electric energy, has practiced thrift the energy greatly.
Drawings
Fig. 1 is a process flow diagram of the present invention.
Wherein: 1 aqueous ammonia preparation jar, 2 one-level absorption towers, 3 second grade absorption towers, 4 settling towers, 5 absorption liquid holding tanks, 6 chimneys, 7 pure water holding tanks, 8 liquid ammonia holding tanks, 9 cross the ammonium workshop, 10 first shower heads, 11 second shower heads, 12 third shower heads, 13 fourth shower heads, 14 ammonia water pumps, 15 one-level circulating pumps, 16 second grade circulating pumps, 17 first double-deck baffles, 18 hide the board, 19 flue gas on-line measuring device, 20 third double-deck baffles, 21 absorption liquid pumps, 22 sulphuric acid tail gas air inlets, 23 second double-deck baffles.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the following description of the present invention with reference to specific embodiments is given for clarity and completeness.
As shown in fig. 1, a tail gas treatment device for sulfur-based acid production comprises an ammonia water preparation system, a tail gas absorption system and a tail gas absorption liquid collection and utilization system, wherein the ammonia water preparation system is connected with the tail gas absorption system through a pipeline; the tail gas absorption system comprises more than two absorption towers, a settling tower 4 and a chimney 6 which are sequentially connected through a pipeline, a liquid inlet of each absorption tower is respectively connected with an ammonia water preparation system, a liquid outlet of each absorption tower is respectively connected with a tail gas absorption liquid collection and utilization system, and each pipeline is provided with a corresponding control valve.
In this embodiment, the ammonia water preparation system includes an ammonia water preparation tank 1, a pure water storage tank 7 connected to the ammonia water preparation tank 1, and a liquid ammonia storage tank 8 connected to the ammonia water preparation tank 1.
Specifically, an upper liquid inlet of the ammonia water preparation tank 1 is connected with a pure water storage tank 7 and a liquid ammonia storage tank 8 through pipelines respectively, and is used for extracting pure water and liquid nitrogen into the ammonia water preparation tank 1 to enable the pure water and the liquid nitrogen to be mixed and react. In this embodiment, a second spray head 11 is arranged in the ammonia water preparation tank 1, the second spray head 11 is connected with the liquid nitrogen storage 8 through a pipeline, the second spray head 11 extends into the lower portion of the ammonia water preparation tank 1, and the second spray head 11 sprays downwards to enable pure water and liquid nitrogen in the ammonia water preparation tank 1 to be fully mixed and react to obtain an ammonia water solution.
An air outlet at the upper part of the ammonia water preparation tank 1 is connected with an absorption tower through a pipeline, and particularly is connected with an air inlet of a first-stage absorption tower 2.
The lower liquid outlet of the ammonia water preparation tank 1 is connected to the upper part of the ammonia water preparation tank 1 through an ammonia water pump 14 and a pipeline, and is used for circulating the ammonia water at the bottom of the ammonia water preparation tank 1 to the upper part of the ammonia water preparation tank 1, so that the ammonia water is mixed more uniformly. Specifically, set up first shower head 10 in aqueous ammonia configuration jar 1, first shower head 10 is connected with aqueous ammonia preparation jar 1 liquid outlet through ammonia pump 14, first shower head 10 stretches into 1 lower part in the aqueous ammonia preparation jar.
The ammonia water preparation tank 1 is also provided with a liquid level meter for monitoring the ammonia water liquid level in the ammonia water preparation tank 1 and controlling the height of the added water liquid level in the ammonia water preparation process.
The absorption tower is set to be two, including one-level absorption tower 2 and second grade absorption tower 3, one-level absorption tower 2 passes through the pipeline and is connected with second grade absorption tower 3.
As shown in fig. 1, the inlet of the lower part of the first-stage absorption tower 2 is connected with the ammonia pump 14 through a pipeline, the ammonia solution in the ammonia preparation tank 1 is extracted into the first-stage absorption tower 2, the outlet of the lower part of the first-stage absorption tower 2 is connected with the absorption liquid storage tank 5 through a pipeline, the tail gas outlet of the top of the first-stage absorption tower 1 is connected with the air inlet of the second-stage absorption tower 3 through a pipeline, the lower part of the first-stage absorption tower 2 is provided with a sulfuric acid tail gas inlet 22, and particularly, the sulfuric acid tail gas inlet 22 is arranged above the ammonia solution page in the first-stage absorption tower 2. In this embodiment, the pipelines at the sulfuric acid tail gas inlet 22 and the air inlet of the secondary absorption tower 3 are horseshoe-shaped to prevent liquid from entering the pipelines, and the sulfur-containing acid tail gas enters from the sulfuric acid tail gas inlet 22 at the lower part of the primary absorption tower 1.
Specifically, a third spray header 12 is arranged at the upper part in the primary absorption tower 1, the third spray header 12 is connected with the lower part of the primary absorption tower 1 through a pipeline and a primary circulating pump 15, and the third spray header 12 is arranged in a downward spraying manner. In this embodiment, a first double-layer partition plate 17 is further disposed in the primary absorption tower 2, and the first double-layer partition plate 17 is disposed at a lower portion of the third showerhead 12. Through setting up first double-deck baffle 17, make the aqueous ammonia that third shower head 12 sprayed, air current distribution even, increase the area of contact of aqueous ammonia and tail gas, make its abundant reaction, absorption.
The liquid inlet of the lower part of the second-stage absorption tower 3 is connected with an ammonia pump 14 through a pipeline, the liquid outlet of the lower part of the second-stage absorption tower 3 is connected with an absorption liquid storage tank 5 through a pipeline, and a tail gas outlet at the top of the second-stage absorption tower 3 is connected with a gas inlet of a settling tower 4 through a pipeline. In this embodiment, the pipe at the air inlet of the settling tower 4 is shaped like a horseshoe, so as to prevent liquid from entering the pipe.
Specifically, a fourth spray header 13 is arranged at the upper part in the secondary absorption tower 3, the fourth spray header 13 is connected with the lower part of the secondary absorption tower 3 through a pipeline and a secondary circulating pump 16, and the fourth spray header 13 is arranged in a downward spraying manner. In this embodiment, a second double-layer partition plate 23 is further disposed in the secondary absorption tower 3, and the second double-layer partition plate 23 is disposed below the fourth spray header 13. The sulfur acid-making tail gas which is not fully reacted enters a secondary absorption tower 3 along the top of a primary absorption tower 2, and an air inlet in the secondary absorption tower 3 is arranged above the page of the ammonia water solution. Through setting up second bilayer baffle 23, make the aqueous ammonia, the air current distribution that fourth shower head 13 sprayed even, increase the area of contact of aqueous ammonia and tail gas, make its abundant reaction, absorption.
As shown in fig. 1, the gas outlet of the settling tower 4 is connected to the chimney 6 through a pipeline, in this embodiment, a third double-layer partition plate 20 is disposed in the settling tower 4, and a flow baffle plate 18 is disposed at the gas inlet, so that the tail gas movement track in the settling tower 4 is increased by disposing the flow baffle plate 18, and the settling effect in the settling tower 4 can be increased by disposing the third double-layer partition plate 20, so that the settling speed is increased, and the time is saved. Of course, a cleaning device is arranged in the air outlet pipeline in the settling tower 4, and a liquid guide pipeline is arranged at the lower part of the settling tower, so that the cleaning work during large overhaul is facilitated (not shown in the figure). Acid mist and impurities in the acid making tail gas can be effectively removed by arranging the settling tower 4 to replace an electric demister, the effect is stable, and electric energy cannot be consumed.
The lower part of the chimney 6 is provided with a flue gas online monitoring device 19 for detecting relevant data in the tail gas in real time, and the flue gas online monitoring device is specifically used for detecting data such as sulfur dioxide, smoke dust and oxygen content in the tail gas.
The ammonia water preparation tank 1 is provided with a hydrometer for detecting the concentration of ammonia water in the ammonia water preparation tank.
And the lower parts of the first-stage absorption tower 2 and the second-stage absorption tower 3 are respectively provided with an online PH meter for monitoring the PH value of the absorption liquid and detecting whether the tail gas generated in acid making is completely absorbed.
The primary absorption tower 2, the secondary absorption tower 3 and the ammonia water preparation tank 1 are all provided with liquid level meters. The online liquid level meter is used for detecting the liquid level and controlling the water adding and ammonia solution surface height in the process, in the embodiment, the magnetic turning plate online liquid level meter is selectively installed at the lower liquid position of the primary absorption tower 2, and the magnetic turning plate online liquid level meter is selectively installed at the lower liquid position of the secondary absorption tower 3.
As shown in fig. 1, the tail gas absorption liquid collecting and utilizing system includes an absorption liquid storage tank 3, a liquid outlet of the absorption liquid storage tank 3 is connected to an ammonium workshop 9 through a pipeline, specifically, the lower part of the absorption liquid storage tank 3 circulates the absorption liquid at the bottom to the absorption liquid storage tank 3 through an absorption liquid pump 21, and a liquid level meter is arranged on the absorption liquid storage tank 3. The absorption liquid storage tank is used for detecting the liquid level, controlling the absorption liquid storage height in the process, automatically opening the control valve when reaching the set height, pumping the absorption liquid in the absorption liquid storage tank 3 to the ammonium passing workshop 9 for recycling, and taking the absorption liquid as a raw material for producing ammonium persulfate, thereby saving energy and cost.
Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art may still modify the technical solutions described in the foregoing embodiments, or may substitute some technical features of the foregoing embodiments; such modifications and substitutions do not depart from the spirit and scope of the embodiments of the present invention.
Claims (10)
1. The utility model provides a device is administered to sulphur system acid tail gas, its includes that aqueous ammonia prepares system, tail gas absorption liquid collect and utilize the system, its characterized in that: the ammonia water preparation system is connected with the tail gas absorption system through a pipeline; the tail gas absorption system comprises more than two absorption towers, a settling tower and a chimney which are sequentially connected through a pipeline, a liquid inlet of each absorption tower is respectively connected with an ammonia water preparation system, and a liquid outlet of each absorption tower is respectively connected with a tail gas absorption liquid collection and utilization system.
2. The sulfur acid production tail gas treatment device according to claim 1, which is characterized in that: the ammonia water preparation system comprises an ammonia water preparation tank, a pure water storage tank connected with the ammonia water preparation tank and a liquid ammonia storage tank connected with the ammonia water preparation tank.
3. The sulfur acid production tail gas treatment device according to claim 2, wherein: and an air outlet at the upper part of the ammonia water preparation tank is connected with the absorption tower through a pipeline.
4. The sulfur acid production tail gas treatment device according to claim 1, which is characterized in that: the absorption tower sets up to two, including first order absorption tower and second grade absorption tower, first order absorption tower passes through the pipeline and is connected with the second grade absorption tower.
5. The sulfur acid production tail gas treatment device according to claim 1, which is characterized in that: the tail gas absorption liquid collecting and utilizing system comprises an absorption liquid storage tank, and a liquid outlet of the absorption liquid storage tank is connected with an ammonium workshop through a pipeline.
6. The sulfur acid production tail gas treatment device according to claim 4, wherein: and a third spray head and a fourth spray head are arranged in the first-stage absorption tower and the second-stage absorption tower, the third spray head and the fourth spray head are respectively connected with the lower parts of the first-stage absorption tower and the second-stage absorption tower through pipelines, and the third spray head and the fourth spray head are arranged in a downward spraying manner.
7. The sulfur acid production tail gas treatment device according to claim 4, wherein: and a first double-layer clapboard and a second double-layer clapboard are arranged in the first-stage absorption tower and the second-stage absorption tower and are arranged at the lower parts of the corresponding spray headers.
8. The device for treating the tail gas generated in the process of preparing the acid by the sulfur according to claim 1, which is characterized in that: and the lower part of the chimney is provided with a smoke on-line monitoring device for detecting related data in the tail gas in real time.
9. The device for treating the tail gas generated in the process of preparing the acid by the sulfur according to claim 1, which is characterized in that: and a third double-layer clapboard used for enhancing the sedimentation effect is arranged in the sedimentation tower.
10. The sulfur acid production tail gas treatment device according to claim 1, which is characterized in that: and a flow shielding plate for increasing the motion trail of the tail gas is further arranged at the air inlet in the settling tower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221290647.9U CN217613972U (en) | 2022-05-27 | 2022-05-27 | Sulfur acid production tail gas treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221290647.9U CN217613972U (en) | 2022-05-27 | 2022-05-27 | Sulfur acid production tail gas treatment device |
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| Publication Number | Publication Date |
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| CN217613972U true CN217613972U (en) | 2022-10-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221290647.9U Active CN217613972U (en) | 2022-05-27 | 2022-05-27 | Sulfur acid production tail gas treatment device |
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| CN (1) | CN217613972U (en) |
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- 2022-05-27 CN CN202221290647.9U patent/CN217613972U/en active Active
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