CN215027139U - High-temperature flue gas purification treatment system - Google Patents
High-temperature flue gas purification treatment system Download PDFInfo
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- CN215027139U CN215027139U CN202120607447.0U CN202120607447U CN215027139U CN 215027139 U CN215027139 U CN 215027139U CN 202120607447 U CN202120607447 U CN 202120607447U CN 215027139 U CN215027139 U CN 215027139U
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Abstract
The utility model discloses a processing system of high temperature gas cleaning belongs to high temperature gas cleaning technical field, and aim at provides a processing system of high temperature gas cleaning, solves current high temperature flue gas and can produce a large amount of (NH) when carrying out the desulfurization4)2SO4And then, adhere to the surface of the catalyst to reduce the desulfurization efficiency. The system comprises a first high-temperature film dust collector, a second high-temperature film dust collector and a dry desulphurization furnace, wherein the first high-temperature film dust collector is communicated with an air inlet pipe, the first high-temperature film dust collector is communicated with a first air outlet pipe, the first air outlet pipe is communicated with an air inlet of the dry desulphurization furnace, and NaHCO is arranged in the dry desulphurization furnace3The dry desulphurization furnace is communicated with a second air outlet pipe, the second air outlet pipe is communicated with an air inlet of a second high-temperature film dust remover, the second high-temperature film dust remover is communicated with a third air outlet pipe, the third air outlet pipe is communicated with a medium-temperature SCR denitration device, and the medium-temperature SCR denitration device is communicated with an exhaust pipe. The utility model is suitable for a high temperature gas cleaning.
Description
Technical Field
The utility model belongs to the technical field of high temperature gas cleaning, concretely relates to high temperature gas cleaning's processing system.
Background
A large amount of high-temperature flue gas can be generated in the existing chemical production process, the high-temperature flue gas contains nitric oxide and oxysulfide, and if the high-temperature flue gas is not purified, the environment can be seriously polluted. With the increasing emphasis of the country on environmental protection, nowadays many enterprises have set up corresponding treatment processes to purify the polluted gas in the high-temperature flue gas. The treatment process at present usually adopts a large amount of ammonia water to desulfurize the high-temperature flue gas, but a large amount of (NH) is generated during the reaction4)2SO4Large amount of (NH)4)2SO4Easily adhere to the surface of the catalyst, thereby greatly reducing the desulfurization efficiency. Therefore, the method for more efficiently purifying and treating the high-temperature flue gas is of great significance.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an eyeIs characterized in that: provides a processing system for purifying high-temperature flue gas, which solves the problem that the prior high-temperature flue gas can generate a large amount of (NH) when being desulfurized4)2SO4And then, adhere to the surface of the catalyst to reduce the desulfurization efficiency.
The utility model adopts the technical scheme as follows:
the utility model provides a high temperature gas cleaning's processing system, includes first high temperature membrane dust remover, second high temperature membrane dust remover, dry process desulfurization stove, first high temperature membrane dust remover intercommunication has the intake pipe, first high temperature membrane dust remover intercommunication has first outlet duct, the air inlet intercommunication of first outlet duct and dry process desulfurization stove, be provided with NaHCO in the dry process desulfurization stove and say that NaHCO is used as fuel3The dry desulphurization furnace is communicated with a second air outlet pipe, the second air outlet pipe is communicated with an air inlet of a second high-temperature film dust remover, the second high-temperature film dust remover is communicated with a third air outlet pipe, the third air outlet pipe is communicated with a medium-temperature SCR denitration device, and the medium-temperature SCR denitration device is communicated with an exhaust pipe.
Further, the reaction temperature of the medium-temperature SCR denitration device is 170 ℃.
Further, the working temperature of the first high-temperature film dust collector and the second high-temperature film dust collector is 350 ℃.
To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:
1. the utility model discloses in, including first high temperature dust scrubber, second high temperature dust scrubber, dry process desulfurization stove, first high temperature dust scrubber intercommunication has the intake pipe, first high temperature dust scrubber intercommunication has first outlet duct, the air inlet intercommunication of first outlet duct and dry process desulfurization stove, be provided with NaHCO in the dry process desulfurization stove3The dry desulphurization furnace is communicated with a second air outlet pipe, the second air outlet pipe is communicated with an air inlet of a second high-temperature film dust remover, the second high-temperature film dust remover is communicated with a third air outlet pipe, the third air outlet pipe is communicated with a medium-temperature SCR denitration device, and the medium-temperature SCR denitration device is communicated with an exhaust pipe.
Through the arrangement, the high-temperature flue gas containing sulfur and nitrate passes through the second stepA high-temperature film dust remover is used for carrying out primary dust removal, and then the obtained product is introduced into a dry desulfurization furnace for dry desulfurization, and NaHCO is used3And SO in high temperature flue gas2React to generate Na2SO4And removing sulfur in the high-temperature flue gas, performing secondary dust removal through a second high-temperature film dust remover, and then entering a medium-temperature SCR denitration device for denitration, wherein the denitrated gas can be directly discharged. The system does not need ammonia water for desulfurization during desulfurization, and effectively reduces (NH)4)2SO4Is generated, prevents (NH)4)2SO4Adhered on the surface of the catalyst, thereby solving the problem that the prior high-temperature flue gas can generate a large amount of (NH) when being desulfurized4)2SO4And then, adhere to the surface of the catalyst to reduce the desulfurization efficiency.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and that for those skilled in the art, other relevant drawings can be obtained according to the drawings without inventive effort, wherein:
fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a process flow diagram of the present invention;
the labels in the figure are: 1-a first high-temperature film dust collector, 2-a second high-temperature film dust collector, 3-a dry desulphurization furnace, 4-an air inlet pipe, 5-a first air outlet pipe, 6-a second air outlet pipe, 7-a third air outlet pipe, 8-a medium-temperature SCR denitration device and 9-an exhaust pipe.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
It should be noted that: reference numerals and letters designate similar items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; mechanical connection or electrical connection can be realized; the two original pieces can be directly connected or indirectly connected through an intermediate medium, or the two original pieces can be communicated with each other. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The utility model provides a processing system of high temperature gas cleaning, high temperature gas cleaning's processing system, includes first high temperature membrane dust remover, second high temperature membrane dust remover, dry process desulfurization stove, first high temperature membrane dust remover intercommunication has the intake pipe, first high temperature membrane dust remover intercommunication has first outlet duct, first outlet duct and dry process desulfurization stove's air inlet intercommunication, be provided with NaHCO in the dry process desulfurization stove and say that the processing system of high temperature gas cleaning, high temperature gas cleaning's processing system, including first high temperature membrane dust remover, second high temperature membrane dust remover, dry process desulfurization stove, first high temperature membrane dust remover intercommunication has first outlet duct, first outlet duct and dry process desulfurization stove's air inlet intercommunication, be provided with NaHCO in the dry process desulfurization stove3The dry desulphurization furnace is communicated with a second air outlet pipe, the second air outlet pipe is communicated with an air inlet of a second high-temperature film dust remover, the second high-temperature film dust remover is communicated with a third air outlet pipe, the third air outlet pipe is communicated with a medium-temperature SCR denitration device, and the medium-temperature SCR denitration device is communicated with an exhaust pipe.
Further, the reaction temperature of the medium-temperature SCR denitration device is 170 ℃.
Further, the working temperature of the first high-temperature film dust collector and the second high-temperature film dust collector is 350 ℃.
The utility model discloses in the implementation process, will contain sulphur and contain nitre high temperature flue gas and carry out once through first high temperature membrane dust remover and remove dust the back, let in and carry out the dry process desulfurization in the dry process desulfurization stove, through using NaHCO3And SO in high temperature flue gas2React to generate Na2SO4And removing sulfur in the high-temperature flue gas, performing secondary dust removal through a second high-temperature film dust remover, and then entering a medium-temperature SCR denitration device for denitration, wherein the denitrated gas can be directly discharged. The system does not need ammonia water for desulfurization during desulfurization, and effectively reduces (NH)4)2SO4Is generated, prevents (NH)4)2SO4Adhered on the surface of the catalyst, thereby solving the problem that the prior high-temperature flue gas can generate a large amount of (NH) when being desulfurized4)2SO4And then adhered to the catalyst meterThe problem of lowering the desulfurization efficiency is faced.
Example 1
The utility model provides a processing system of high temperature gas cleaning, high temperature gas cleaning's processing system, includes first high temperature membrane dust remover, second high temperature membrane dust remover, dry process desulfurization stove, first high temperature membrane dust remover intercommunication has the intake pipe, first high temperature membrane dust remover intercommunication has first outlet duct, first outlet duct and dry process desulfurization stove's air inlet intercommunication, be provided with NaHCO in the dry process desulfurization stove and say that the processing system of high temperature gas cleaning, high temperature gas cleaning's processing system, including first high temperature membrane dust remover, second high temperature membrane dust remover, dry process desulfurization stove, first high temperature membrane dust remover intercommunication has first outlet duct, first outlet duct and dry process desulfurization stove's air inlet intercommunication, be provided with NaHCO in the dry process desulfurization stove3The dry desulphurization furnace is communicated with a second air outlet pipe, the second air outlet pipe is communicated with an air inlet of a second high-temperature film dust remover, the second high-temperature film dust remover is communicated with a third air outlet pipe, the third air outlet pipe is communicated with a medium-temperature SCR denitration device, and the medium-temperature SCR denitration device is communicated with an exhaust pipe.
Example 2
In addition to example 1, the reaction temperature of the medium-temperature SCR denitration device is 170 ℃.
Example 3
On the basis of the above embodiment, the operating temperature of the first high-temperature film dust collector and the second high-temperature film dust collector is 350 ℃.
The above is the embodiment of the present invention. The foregoing is the preferred embodiments of the present invention, and if the preferred embodiments in the preferred embodiments are not obviously contradictory or are based on a certain preferred embodiment, the preferred embodiments can be combined and used by being superimposed at will, and the specific parameters in the embodiments and examples are only for the purpose of clearly describing the verification process of the present invention, and are not used to limit the patent protection scope of the present invention, which is still based on the claims, and all the equivalent structural changes made by applying the contents of the specification and the drawings of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. The high-temperature flue gas purification treatment system is characterized by comprising a first high-temperature film dust collector (1), a second high-temperature film dust collector (2) and a dry methodDesulfurizing furnace (3), first high temperature dust scrubber (1) intercommunication has intake pipe (4), first high temperature dust scrubber (1) intercommunication has first outlet duct (5), first outlet duct (5) and the air inlet intercommunication of dry desulfurization furnace (3), be provided with NaHCO in dry desulfurization furnace (3)3The dry desulphurization furnace (3) is communicated with a second air outlet pipe (6), the second air outlet pipe (6) is communicated with an air inlet of a second high-temperature film dust collector (2), the second high-temperature film dust collector (2) is communicated with a third air outlet pipe (7), the third air outlet pipe (7) is communicated with a medium-temperature SCR denitration device (8), and the medium-temperature SCR denitration device (8) is communicated with an exhaust pipe (9).
2. A high temperature flue gas cleaning treatment system according to claim 1, wherein the reaction temperature of the medium temperature SCR denitration device (8) is 170 ℃.
3. A high temperature flue gas cleaning treatment system according to claim 1, wherein the working temperature of the first high temperature dust scrubber (1) and the second high temperature dust scrubber (2) is 350 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120607447.0U CN215027139U (en) | 2021-03-25 | 2021-03-25 | High-temperature flue gas purification treatment system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120607447.0U CN215027139U (en) | 2021-03-25 | 2021-03-25 | High-temperature flue gas purification treatment system |
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| CN215027139U true CN215027139U (en) | 2021-12-07 |
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| CN202120607447.0U Active CN215027139U (en) | 2021-03-25 | 2021-03-25 | High-temperature flue gas purification treatment system |
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2021
- 2021-03-25 CN CN202120607447.0U patent/CN215027139U/en active Active
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