CN217709340U - Blast furnace gas hydrogen sulfide removing device - Google Patents
Blast furnace gas hydrogen sulfide removing device Download PDFInfo
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- CN217709340U CN217709340U CN202222210145.7U CN202222210145U CN217709340U CN 217709340 U CN217709340 U CN 217709340U CN 202222210145 U CN202222210145 U CN 202222210145U CN 217709340 U CN217709340 U CN 217709340U
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Abstract
The scheme provides a blast furnace gas hydrogen sulfide removal device, which comprises an alkali liquor preparation unit, an alkali spraying unit and a dehydration unit. The liquid outlet of the alkali liquor preparation unit is communicated with the liquid inlet of the alkali spraying unit, the liquid outlet of the alkali spraying unit is arranged in the blast furnace gas pipeline and is positioned at the downstream of the blast furnace gas pressure reducing valve group, and the dehydration unit is communicated with the downstream outlet of the blast furnace gas pipeline. The alkali liquor preparation unit is used for preparing alkali liquor, is arranged near the alkali spraying unit and conveys the alkali liquor to the alkali spraying unit. The alkali spraying unit is used for spraying alkali liquor and industrial fresh water into the blast furnace gas, and removing hydrogen sulfide in the blast furnace gas through the reaction of the alkali liquor and the hydrogen sulfide in the blast furnace gas. The dehydration unit is used for removing the mechanical water containing sodium sulfide in the blast furnace gas. The three units are matched, so that the hydrogen sulfide in the blast furnace gas can be removed efficiently.
Description
Technical Field
The utility model belongs to the technical field of steel blast furnace gas treatment, in particular to a blast furnace gas hydrogen sulfide removing device.
Background
At present, the dry dedusting process is adopted in domestic large and medium blast furnaces, so that more acidic substances such as hydrogen sulfide exist in blast furnace gas. A gas hydrogen sulfide removal facility is required to be arranged to ensure that the concentration of hydrogen sulfide in blast furnace gas is less than or equal to 20mg/Nm3And the removal effect of the hydrogen sulfide removal facility in the prior art is poor.
Therefore, how to remove hydrogen sulfide from blast furnace gas with high efficiency is an urgent problem to be solved by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a blast furnace gas hydrogen sulfide desorption device, hydrogen sulfide in the high-efficient desorption blast furnace gas.
In order to solve the technical problem, the utility model provides a blast furnace gas hydrogen sulfide removal device, include:
an alkali liquor preparation unit for preparing alkali liquor;
the alkali spraying unit is used for spraying alkali liquor and industrial fresh water into blast furnace gas;
the dehydration unit is used for removing mechanical water containing sodium sulfide in the blast furnace gas;
the liquid outlet of the alkali liquor preparation unit is communicated with the liquid inlet of the alkali spraying unit, the liquid outlet of the alkali spraying unit is arranged in the blast furnace gas pipeline and is positioned at the downstream of the blast furnace gas pressure reducing valve bank, and the dehydration unit is communicated with the downstream outlet of the blast furnace gas pipeline.
Optionally, in the blast furnace gas hydrogen sulfide removal device, the alkali liquor preparation unit comprises an alkali liquor preparation tank and a stirrer;
the alkali liquor preparation tank is respectively provided with an alkali powder charging port, an industrial fresh water charging port and an alkali liquor outlet, and the stirring blades of the stirrer are arranged in the alkali liquor preparation tank.
Optionally, in the above blast furnace gas hydrogen sulfide removal device, the alkali liquor preparation tank is further provided with an access hole and/or a drain outlet.
Optionally, in the above blast furnace gas hydrogen sulfide removal device, the industrial fresh water feed inlet is communicated with an external water source through an industrial fresh water pipe, and the industrial fresh water pipe is connected in series with a pneumatic ball valve and a stop valve.
Optionally, the blast furnace gas hydrogen sulfide removal device further comprises a control unit, a liquid level meter is arranged in the alkali liquor preparation tank, and the control unit is used for controlling the injection amount of an industrial novice according to a liquid level numerical value of the liquid level meter.
Optionally, in the above blast furnace gas hydrogen sulfide removal device, at least one alkali liquor outlet is provided, each alkali liquor outlet is communicated with the alkali spraying unit through an alkali liquor pipe, and the alkali liquor pipe is at least connected in series with one or more of an alkali liquor pump, a filter, a first ball valve, a second ball valve, and a check valve.
Optionally, in the above blast furnace gas hydrogen sulfide removal device, the alkali spraying unit includes an atomizing spray gun, and an industrial fresh water spray pipe, a nitrogen spray pipe, and an alkali liquor spray pipe that are respectively connected to the atomizing spray gun.
Optionally, in the above blast furnace gas hydrogen sulfide removal device, at least one or more of a first front-end stop valve, a first pneumatic ball valve, a first front-end check valve, a first rear-end stop valve, and a first rear-end check valve are connected in series on the industrial fresh water spray pipe;
and/or one or more of a second front-end stop valve, a second pneumatic ball valve, a second front-end check valve, a second rear-end stop valve and a second rear-end check valve are/is at least connected in series on the nitrogen spray pipe;
and/or the alkali liquor spray pipe is at least connected in series with one or more of a third front-end stop valve, a third pneumatic ball valve, a third front-end check valve, a third rear-end stop valve and a third rear-end check valve.
Optionally, in the above blast furnace gas hydrogen sulfide removal device, the front end and the rear end of the industrial fresh water spray pipe are respectively provided with a first front end flow detection device and a first rear end flow detection device;
and/or the nitrogen spray pipe is provided with a second flow detection device;
and/or the alkali liquor spray pipe is provided with a third flow detection device.
Optionally, in the above blast furnace gas hydrogen sulfide removal device, an industrial fresh water loop pipe for forming a water seal is arranged at the middle section of the industrial fresh water spray pipe;
and/or the nitrogen spray pipe is provided with a nitrogen ring pipe;
and/or the alkali liquor spray pipe is provided with a third alkali liquor ring pipe for forming water seal.
The utility model provides a blast furnace gas hydrogen sulfide removing device has following beneficial effect:
the alkali liquor preparation unit is used for preparing alkali liquor, is arranged near the alkali spraying unit and is used for conveying the alkali liquor to the alkali spraying unit. The alkali spraying unit is used for spraying alkali liquor and industrial fresh water into the blast furnace gas, and removing hydrogen sulfide in the blast furnace gas through the reaction of the alkali liquor and the hydrogen sulfide in the blast furnace gas. The dehydration unit is used for removing the mechanical water containing sodium sulfide in the blast furnace gas. The three units are matched, so that the hydrogen sulfide in the blast furnace gas can be removed efficiently.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural view of a blast furnace gas hydrogen sulfide removal device provided by the present invention;
FIG. 2 is a schematic structural diagram of an alkali liquor preparation unit provided by the present invention;
FIG. 3 is a top view of the lye preparation units provided by the present invention;
fig. 4 is a schematic structural diagram of the alkali spraying unit provided by the present invention.
Reference numerals:
s1, a blast furnace gas pipeline; s2, a blast furnace gas pressure reducing valve bank;
100-a lye preparation unit; 110-lye preparation tanks; 111-base powder feed inlet; 112-industrial fresh water feed inlet; 113-a sewage draining outlet; 114-service port; 115-industrial new water pipe; 116-a pneumatic ball valve; 117-stop valve; 120-a stirrer; 121-agitator support; 130-alkali liquor tube; 131-lye pump; 132-a filter; 133-a first ball valve; 134-a second ball valve; 135-a check valve; 140-a liquid level meter;
200-alkali spraying unit; 210-an atomizing spray gun; 220-industrial new water spray pipe; 221-a first front end stop valve; 222-a first pneumatic ball valve; 223-a first front check valve; 224-a first front end flow detection device; 225-a first water seal; 226-industrial new water ring pipe; 227-a first back end shutoff valve; 228-a first backend flow detection means; 229-a first back-end check valve; 230-a nitrogen gas lance; 231-a second front end shutoff valve; 232-a second pneumatic ball valve; 233-a second front check valve; 234-a second flow detection device; 235-nitrogen loop; 236-a second back-end shutoff valve; 237-a second rear check valve; 240-alkali liquor spray pipe; 241-a third front end stop valve; 242-a third pneumatic ball valve; 243-third front check valve; 244-third flow detection means; 245-a third water seal; 246-third lye loop; 247-a third back-end shutoff valve; 248-a third rear check valve;
300-dehydration unit.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are exemplary only for explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
It should be noted that, for the convenience of description, only the portions related to the related applications are shown in the drawings. The embodiments and features of the embodiments in the present application may be combined with each other without conflict.
It should be understood that "system", "apparatus", "unit" and/or "module" as used herein is a method for distinguishing different components, elements, parts or assemblies at different levels. However, other words may be substituted by other expressions if they accomplish the same purpose.
As used in this application and the appended claims, the terms "a," "an," "the," and/or "the" are not intended to be inclusive in the singular, but rather are intended to be inclusive in the plural unless the context clearly dictates otherwise. In general, the terms "comprises" and "comprising" are intended to cover only the explicitly identified steps or elements as not constituting an exclusive list and that the method or apparatus may comprise further steps or elements. An element defined by the phrase "comprising a … …" does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.
In the description of the embodiments herein, "/" means "or" unless otherwise specified, for example, a/B may mean a or B; "and/or" herein is merely an association describing an associated object, and means that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, in the description of the embodiments of the present application, "a plurality" means two or more than two.
In the following, the terms "first", "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.
In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.
The core of the utility model is to provide a blast furnace gas hydrogen sulfide removing device which can efficiently remove the hydrogen sulfide in the blast furnace gas.
In order to make those skilled in the art better understand the technical solutions provided by the present invention, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1-4, fig. 1 is a schematic structural diagram of a blast furnace gas hydrogen sulfide removal device provided by the present invention; FIG. 2 is a schematic structural diagram of an alkali liquor preparation unit provided by the present invention; FIG. 3 is a top view of the lye preparation units provided by the present invention; fig. 4 is a schematic structural diagram of the alkali spraying unit provided by the present invention.
The utility model provides a blast furnace gas hydrogen sulfide removing device, which comprises an alkali liquor preparation unit 100, an alkali spraying unit 200 and a dehydration unit 300. The alkali liquor preparation unit 100 is communicated with the alkali spraying unit 200, and the alkali spraying unit 200 and the dehydration unit 300 are arranged in the blast furnace gas pipeline S1 along the airflow flowing direction and are positioned at the downstream of the blast furnace gas pressure reducing valve group S2.
The alkali liquor preparation unit 100 is used for preparing alkali liquor, and can be arranged near the alkali spraying unit 200 and arranged in a pit. The new industrial water is added into the lye preparation tank 110 through the new industrial water pipe 115, then made into lye with different concentrations under the stirring of the stirrer 120, and then pressurized by the lye pump 131 and sent to the lye spraying unit 200.
The alkali spraying unit 200 is used for spraying alkali liquor and industrial fresh water into blast furnace gas.
The dehydration unit 300 is arranged on the blast furnace gas pipeline S1 behind the alkali spraying unit 200 and is used for removing the mechanical water containing sodium sulfide in the blast furnace gas. The dehydration unit 300 generally employs a dehydration tower, in which a filler is disposed to remove mechanical water in the blast furnace gas after spraying alkali.
The content of hydrogen sulfide in blast furnace gas generated by blast furnace smelting is in the range of 5-30mg/Nm according to the difference of sulfur content of coke and coal powder in blast furnace smelting raw material3In order to remove the hydrogen sulfide in the blast furnace gas, the mechanism of chemical reaction between alkali liquor (NAOH concentrated liquor) and hydrogen sulfide is adopted, namely the alkali liquor is sprayed into the blast furnace gas through an alkali spraying unit 200 to absorb the hydrogen sulfide in the blast furnace gas, so that the concentration of the hydrogen sulfide in the blast furnace gas is ensured to be less than or equal to 20mg/Nm3The average removal rate was 60%.
According to the blast furnace gas hydrogen sulfide removing device, the alkali liquor preparation unit 100 is responsible for preparing alkali liquor, is arranged near the alkali spraying unit 200 and conveys the alkali liquor to the alkali spraying unit 200. The alkali spraying unit 200 is responsible for spraying alkali liquor and industrial fresh water into the blast furnace gas, and removing hydrogen sulfide in the blast furnace gas through the reaction of the alkali liquor and the hydrogen sulfide in the blast furnace gas. The dewatering unit 300 is used to remove mechanical water containing sodium sulfide from the blast furnace gas. The three units are matched, so that the hydrogen sulfide in the blast furnace gas can be removed efficiently.
In one embodiment, the lye preparation unit 100 comprises a lye preparation tank 110 and an agitator 120. The alkali solution preparation tank 110 is respectively provided with an alkali powder feed port 111, an industrial fresh water feed port 112 and an alkali solution outlet, and the stirring blades of the stirrer 120 are arranged in the alkali solution preparation tank 110. The stirrer bracket 121 is arranged at the top of the outer side of the lye preparation tank 110, the stirrer 120 is erected on the stirrer bracket 121, and the movable end is arranged in the lye preparation tank 110.
In order to facilitate manual maintenance of the inside of the alkali liquor preparation tank 110, the alkali liquor preparation tank 110 is further provided with a maintenance port 114, and in order to facilitate sewage drainage, the alkali liquor preparation tank 110 is further provided with a sewage drainage port 113.
Further, the industrial fresh water feed port 112 is communicated with an external water source through an industrial fresh water pipe 115, and a pneumatic ball valve 116 and a stop valve 117 are connected in series on the industrial fresh water pipe 115 to respectively control the flow and the on-off of the industrial fresh water in the pipeline.
The utility model discloses still include the control unit, be provided with level gauge 140 in the alkali lye preparation jar 110, the control unit is used for the injection volume according to the liquid level numerical control industry novice of level gauge 140. The gauge 140 may be a radar gauge 140 with high accuracy and wide range of measurement.
Because the dosage of the alkali liquor is large, at least one alkali liquor outlet is provided, and each alkali liquor outlet is communicated with the alkali spraying unit 200 through an alkali liquor pipe 130, and at least one or more of an alkali liquor pump 131, a filter 132, a first ball valve 133, a second ball valve 134 and a check valve 135 are connected in series on the alkali liquor pipe 130.
As shown in fig. 3, alkali powder is added into the alkali solution preparation tank 110 through an alkali powder feed port 111, and industrial fresh water is added into the alkali solution preparation tank 110 through an industrial fresh water pipe 115, and then alkali solutions with different concentrations are prepared under the stirring of the stirrer 120, and then pressurized by the alkali solution pump 131 and sent to the alkali spraying unit 200. A stop valve 117 and a pneumatic ball valve 116 are sequentially arranged on the industrial fresh water pipe 115, and different volumes of industrial fresh water are added according to the radar liquid level gauge 140 to prepare the alkali liquor with different concentrations in the alkali liquor preparation tank 110. The first ball valve 133, the filter 132, the check valve 135, and the second ball valve 134 are provided in this order before and after the lye pump 131. The lye pump 131 is interlocked with the radar level gauge 140, and alarms when the level gauge 140 of the lye preparation tank 110 is at a low liquid level, and the lye pump 131 is stopped when the liquid level is at an ultra-low liquid level. The agitator 120 is supported on an agitator support 121.
In one embodiment, the alkali spraying unit 200 comprises an atomizing spray gun 210, and a fresh industrial water spray pipe 220, a nitrogen spray pipe 230 and a lye spray pipe 240 respectively connected to the atomizing spray gun 210.
As shown in fig. 4, an atomizing lance 210 is provided in the low pressure blast furnace gas duct S1 behind the blast furnace gas pressure reducing valve block S2. The atomization spray gun 210 has 3 interfaces, namely an alkali liquor interface, an industrial fresh water interface and a nitrogen interface, the alkali liquor and the industrial fresh water in the spray gun are completely atomized in the blast furnace gas pipeline S1 through the nitrogen, so that the atomized alkali liquor and the industrial fresh water are ensured to be completely contacted with the blast furnace gas in the pipe, the hydrogen sulfide in the blast furnace gas is completely reacted with the alkali liquor, and the purpose of removing the hydrogen sulfide in the blast furnace gas is achieved.
The atomizing spray guns 210 are installed in the blast furnace gas pipeline S1, and the arrangement and the number of the spray guns need to ensure that the alkali liquor and the industrial fresh water sprayed by the atomizing spray guns 210 completely cover the section of the blast furnace gas pipeline S1. The atomization spray gun 210 adopts a double-fluid spray gun with 3 interfaces, namely an alkali liquor interface, an industrial fresh water interface and a nitrogen interface, and completely atomizes the alkali liquor and the industrial fresh water in the spray gun through the nitrogen to ensure that the alkali liquor and the industrial fresh water are completely contacted with the blast furnace gas in the blast furnace gas pipeline S1, so that hydrogen sulfide in the blast furnace gas completely reacts with the alkali liquor.
On the basis of the above-mentioned specific embodiment, regarding the industrial fresh water system, at least one or more of the first front-end stop valve 221, the first pneumatic ball valve 222, the first front-end check valve 223, the first rear-end stop valve 227 and the first rear-end check valve 229 are connected in series on the industrial fresh water spray pipe 220. According to different functions, if the on-off of a medium needs to be controlled, a stop valve is adopted, the flow of fluid needs to be accurately controlled, a pneumatic ball valve is adopted, a check valve is adopted for preventing the medium from flowing backwards, and the like, and the functional valve members can be arranged in a permutation and combination mode. In particular, the first pneumatic bulb valve 222 automatically adjusts the flow of the fresh industrial water according to the hydrogen sulfide content in the blast furnace gas at the outlet of the dehydration unit 300.
Similarly, for the nitrogen system, one or more of a second front-end stop valve 231, a second pneumatic ball valve 232, a second front-end check valve 233, a second rear-end stop valve 236, and a second rear-end check valve 237 are connected in series on the nitrogen nozzle 230. In particular, the second pneumatic ball valve 232 may automatically adjust the flow of nitrogen based on the hydrogen sulfide content in the blast furnace gas at the outlet of the dehydration unit 300.
Similarly, for the lye system, at least one or more of a third front-end stop valve 241, a third pneumatic ball valve 242, a third front-end check valve 243, a third rear-end stop valve 247 and a third rear-end check valve 248 are connected in series to the lye jet pipe 240. In particular, the third pneumatic ball valve 242 automatically adjusts the flow rate of the lye according to the hydrogen sulfide content in the blast furnace gas at the outlet of the dewatering unit 300.
On the basis of the above specific embodiment, in order to facilitate determining whether each pipeline of the alkali spraying unit 200 is blocked, the front end and the rear end of the new industrial water spray pipe 220 are respectively provided with a first front end flow detection device 224 and a first rear end flow detection device 228, which are respectively used for detecting whether the front end and the rear end of the new industrial water spray pipe 220 are unobstructed. The first back end flow detection device 228 may be a glass rotameter.
Likewise, the nitrogen lance 230 is provided with a second flow sensing device 234. The alkali liquor spray pipe 240 is provided with a third flow detection device 244.
In order to ensure that the blast furnace gas in the blast furnace gas pipeline S1 reversely flows into the new industrial water system and the alkaline solution system, the middle section of the new industrial water spray pipe 220 is provided with a new industrial water loop pipe 226 for forming a first water seal 225, and the alkaline solution spray pipe 240 is provided with a third alkaline solution loop pipe 246 for forming a third water seal 245, so as to ensure the safety of production. Meanwhile, the industrial fresh water spray pipe 220, the nitrogen spray pipe 230 and the alkali solution spray pipe 240 may be provided in the form of a ring (an industrial fresh water ring pipe 226, a third alkali solution ring pipe 246 and a nitrogen ring pipe 235) to arrange the pipes reasonably.
Specifically, as shown in fig. 4, the industrial fresh water passes through the first front-end stop valve 221, the first pneumatic ball valve 222, the first front-end check valve 223, the first front-end flow detection device 224, the first water seal 225, the industrial fresh water loop pipe 226, the first rear-end stop valve 227, the first rear-end flow detection device 228, and the first rear-end check valve 229 in sequence, and enters the industrial fresh water port of the atomizing spray gun 210. The first pneumatic ball valve 222 can automatically adjust the flow of the industrial fresh water according to the content of the hydrogen sulfide in the blast furnace gas at the outlet of the dehydration unit 300. The effective height of the first water seal 225 must be greater than 4m, and the first water seal 225 and the first front check valve 223 can ensure that the blast furnace gas in the blast furnace gas pipeline S1 reversely flows into the industrial new water system, thereby ensuring the production safety. The first backend flow detection device 228 can determine whether the lance is plugged.
The nitrogen gas enters the nitrogen interface of the atomizing spray gun 210 through the second front end stop valve 231, the second pneumatic ball valve 232, the second front end check valve 233, the second flow detection device 234, the nitrogen annular pipe 235, the second rear end stop valve 236, and the second rear end check valve 237 in sequence. The second pneumatic ball valve 232 can automatically adjust the flow of nitrogen gas according to the content of hydrogen sulfide in the blast furnace gas at the outlet of the dehydration unit 300.
The alkali liquor sequentially passes through a third front-end stop valve 241, a third pneumatic ball valve 242, a third front-end check valve 243, a third flow detection device 244, a third water seal 245, a third alkali liquor loop 246, a third rear-end stop valve 247 and a third rear-end check valve 248 and enters an alkali liquor interface of the atomizing spray gun 210. The third pneumatic ball valve 242 can automatically adjust the flow rate of the lye according to the content of the hydrogen sulfide in the blast furnace gas at the outlet of the dewatering unit 300. The effective height of the third water seal 245 must be greater than 4m, and the third water seal 245 and the third front check valve 243 can ensure that the blast furnace gas in the blast furnace gas pipeline S1 is reversely connected into the alkali liquor system, thereby ensuring the production safety.
In the present specification, the embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
Claims (10)
1. A blast furnace gas hydrogen sulfide removing device is characterized by comprising:
an alkali liquor preparation unit for preparing alkali liquor;
the alkali spraying unit is used for spraying alkali liquor and industrial fresh water into blast furnace gas;
the dehydration unit is used for removing mechanical water containing sodium sulfide in the blast furnace gas;
the liquid outlet of the alkali liquor preparation unit is communicated with the liquid inlet of the alkali spraying unit, the liquid outlet of the alkali spraying unit is arranged in the blast furnace gas pipeline and is positioned at the downstream of the blast furnace gas pressure reducing valve bank, and the dehydration unit is communicated with the downstream outlet of the blast furnace gas pipeline.
2. The blast furnace gas hydrogen sulfide removal device of claim 1, wherein the lye preparation unit comprises a lye preparation tank and a stirrer;
the alkali liquor preparation tank is respectively provided with an alkali powder charging port, an industrial fresh water charging port and an alkali liquor outlet, and the stirring blades of the stirrer are arranged in the alkali liquor preparation tank.
3. The blast furnace gas hydrogen sulfide removal device according to claim 2, wherein the lye preparation tank is further provided with an access opening and/or a drain outlet.
4. The blast furnace gas hydrogen sulfide removal device according to claim 2, wherein the industrial fresh water feed inlet is communicated with an external water source through an industrial fresh water pipe, and a pneumatic ball valve and a stop valve are connected in series to the industrial fresh water pipe.
5. The blast furnace gas hydrogen sulfide removal device according to claim 4, further comprising a control unit, wherein a liquid level meter is arranged in the alkali liquor preparation tank, and the control unit is used for controlling the injection amount of an industrial novice according to the liquid level value of the liquid level meter.
6. The blast furnace gas hydrogen sulfide removal device according to claim 2, wherein there is at least one lye outlet, and each lye outlet is communicated with the alkali spraying unit through a lye pipe, and at least one or more of a lye pump, a filter, a first ball valve, a second ball valve and a check valve are connected in series on the lye pipe.
7. The blast furnace gas hydrogen sulfide removal device of claim 1, wherein the alkali spraying unit comprises an atomizing spray gun and an industrial fresh water spray pipe, a nitrogen spray pipe and an alkali liquor spray pipe which are respectively connected with the atomizing spray gun.
8. The blast furnace gas hydrogen sulfide removal device of claim 7, wherein the industrial fresh water lance is connected in series with at least one or more of a first front-end stop valve, a first pneumatic ball valve, a first front-end check valve, a first rear-end stop valve, and a first rear-end check valve;
and/or one or more of a second front end stop valve, a second pneumatic ball valve, a second front end check valve, a second rear end stop valve and a second rear end check valve are at least connected in series on the nitrogen spray pipe;
and/or the alkali liquor spray pipe is at least connected in series with one or more of a third front-end stop valve, a third pneumatic ball valve, a third front-end check valve, a third rear-end stop valve and a third rear-end check valve.
9. The blast furnace gas hydrogen sulfide removal device according to claim 7, wherein the front end and the rear end of the industrial fresh water nozzle are respectively provided with a first front end flow detection device and a first rear end flow detection device;
and/or the nitrogen spray pipe is provided with a second flow detection device;
and/or the alkali liquor spray pipe is provided with a third flow detection device.
10. The blast furnace gas hydrogen sulfide removal device according to claim 7, wherein an industrial fresh water loop pipe for forming water seal is arranged at the middle section of the industrial fresh water spray pipe;
and/or the nitrogen spray pipe is provided with a nitrogen ring pipe;
and/or the alkali liquor spray pipe is provided with a third alkali liquor ring pipe for forming water seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222210145.7U CN217709340U (en) | 2022-08-22 | 2022-08-22 | Blast furnace gas hydrogen sulfide removing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222210145.7U CN217709340U (en) | 2022-08-22 | 2022-08-22 | Blast furnace gas hydrogen sulfide removing device |
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| CN217709340U true CN217709340U (en) | 2022-11-01 |
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| CN202222210145.7U Active CN217709340U (en) | 2022-08-22 | 2022-08-22 | Blast furnace gas hydrogen sulfide removing device |
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| CN (1) | CN217709340U (en) |
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