CN212663167U - High-efficient SOx/NOx control dust collector of kaolin calcining kiln flue gas - Google Patents
High-efficient SOx/NOx control dust collector of kaolin calcining kiln flue gas Download PDFInfo
- Publication number
- CN212663167U CN212663167U CN202020627664.1U CN202020627664U CN212663167U CN 212663167 U CN212663167 U CN 212663167U CN 202020627664 U CN202020627664 U CN 202020627664U CN 212663167 U CN212663167 U CN 212663167U
- Authority
- CN
- China
- Prior art keywords
- flue gas
- pipeline
- calcining kiln
- desulfurization
- filter tube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Chimneys And Flues (AREA)
Abstract
The utility model discloses a high-efficient SOx/NOx control dust collector of kaolin calcining kiln flue gas relates to kaolin calcining kiln flue gas emission and purification technical field. The high-efficiency desulfurization denitration dust removal device for the flue gas of the kaolin calcining kiln comprises a chimney, an induced draft fan, a pipeline heat exchanger, an ash conveying fan, a ceramic catalytic filter tube reactor, an ammonia water spray gun, a desulfurization mixing tower, a desulfurizer powder bin, a powder conveying fan, a flue and a combustor. This high-efficient SOx/NOx control dust collector of kaolin calcining kiln flue gas, flue gas after the dust removal passes through ceramic catalytic filter tube reactor, is applicable to kaolin calcining kiln flue gas desulfurization and well low temperature denitration operation, and the desulfurizer adopts soda powder, and desulfurization efficiency can reach more than 98%, and catalyst evenly distributed is on the ceramic fiber pipe of complicacy, and flue gas catalytic filtration is thorough, and the catalyst is difficult for producing the jam poisoning, long service life, and denitration efficiency is high, can reach 99%, and flue gas after the denitration passes through ultralow emission dust collector, and the dust filtration is thorough.
Description
Technical Field
The utility model relates to a kaolin calcining kiln smoke emission purifies technical field, specifically is a high-efficient SOx/NOx control dust collector of kaolin calcining kiln flue gas.
Background
In the processing process of kaolin, a kiln (a rotary kiln, a vertical kiln and the like) is required to be used for heating and calcining, mineral kaolin is used as a production raw material in the process, the content of smoke and dust is extremely high after calcining, the central temperature in the kiln reaches above 950 ℃, fuel type and thermal type nitrogen oxides can be rapidly generated in the temperature range, and the content of the nitrogen oxides in smoke is high; secondly, the outlet temperature of the kiln tail is about 180 ℃, the denitration difficulty caused by low-temperature flue gas is increased, and the concentration of sulfur dioxide in the flue gas is usually 200mg/Nm3The dew point temperature of ammonium bisulfate is high. Based on the characteristics of the flue gas, the conventional desulfurization and denitrification process for the thermal power plant is difficult to be applied to flue gas of a kaolin calcining kiln, and the traditional SCR denitration catalyst process is easy to condense and block catalyst holes, so that higher risk exists. At present, the national industrial smoke emission standard is increasingly strict, the smoke of the kaolin kiln is brought into the environment-friendly strict control category, and a novel environment-friendly process is urgently needed to be provided in the field to meet the current environment-friendly smoke emission standard and production requirements.
SUMMERY OF THE UTILITY MODEL
The true bookWith the novel high-efficient SOx/NOx control dust collector that provides a kaolin calcining kiln flue gas, can make kaolin calcining kiln afterbody flue gas NOx、SO2And the emission index of the dust meets the requirement of the ultralow emission index.
In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a high-efficient SOx/NOx control dust collector of kaolin calcining kiln flue gas, includes chimney, draught fan, pipeline heat exchanger, defeated grey fan, ceramic catalysis filter tube reactor, aqueous ammonia spray gun, desulfurization mixing tower, desulfurizer powder storehouse, defeated powder fan, flue and combustor, the exit end of desulfurization mixing tower passes through the entrance point fixed connection of pipeline with the combustor, the exit end in desulfurizer powder storehouse passes through pipeline and flue intercommunication, inside the air outlet of defeated powder fan extended to the pipeline between desulfurizer powder storehouse and the flue, the exit end of flue and the entrance point intercommunication of desulfurization mixing tower, the exit end of combustor passes through the entrance point intercommunication of pipeline and ceramic catalysis filter tube reactor.
In order to improve the use of ceramic catalytic filter pipe reactor, conduct the utility model relates to a kaolin calcining kiln flue gas high efficiency SOx/NOx control dust collector is preferred, the ceramic catalytic filter pipe reactor comprises low temperature catalyst and ceramic fibre filter pipe in the SCR catalyst, and SCR catalyst evenly distributed is inside ceramic fibre filter pipe layer.
In order to make the aqueous ammonia spout into the inside of pipeline, conduct the utility model relates to a high-efficient SOx/NOx control dust collector of kaolin calcining kiln flue gas is preferred, the aqueous ammonia spray gun is located inside the pipeline between combustor and the ceramic catalysis filter tube reactor.
In order to carry the gas after filtering, as the utility model relates to a kaolin calcining kiln flue gas high efficiency SOx/NOx control dust collector is preferred, defeated grey fan is installed in the bottom of ceramic catalysis filter tube reactor, the exit end of ceramic catalysis filter tube reactor passes through pipeline and pipe heat exchanger intercommunication.
In order to carry the gas after the heat transfer, as the utility model relates to a high-efficient SOx/NOx control dust collector of kaolin calcining kiln flue gas is preferred, pipe heat exchanger's exit end passes through pipeline and draught fan intercommunication.
In order to discharge the chimney with the gas after handling, as the utility model relates to a high-efficient SOx/NOx control dust collector of kaolin calcining kiln flue gas is preferred, the air outlet of draught fan passes through pipeline and chimney intercommunication.
The utility model provides a high-efficient SOx/NOx control dust collector of kaolin calcining kiln flue gas. The method has the following beneficial effects:
this high-efficient SOx/NOx control dust collector of kaolin calcining kiln flue gas, flue gas after the dust removal passes through ceramic catalytic filter tube reactor, be applicable to kaolin calcining kiln flue gas desulfurization and well low temperature denitration operation, the desulfurizer adopts soda powder, desulfurization efficiency can reach more than 98%, catalyst evenly distributed is on the ceramic fiber pipe of labyrinth complicacy, flue gas catalytic filtration is thorough, the catalyst is difficult for producing the jam poisoning, long service life, denitration efficiency is high, can reach 99%, flue gas after the denitration passes through ultralow emission dust collector, the dust filtration is thorough, filtration efficiency can reach 99.98%.
Drawings
Fig. 1 is a schematic view of the structure of the device of the present invention.
In the figure: 1. a chimney; 2. an induced draft fan; 3. a pipe heat exchanger; 4. an ash conveying fan; 5. a ceramic catalytic filter tube reactor; 6. an ammonia water spray gun; 7. a desulfurization mixing tower; 8. a desulfurizer powder bin; 9. a powder conveying fan; 10. a flue; 11. a burner.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
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 drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
Referring to fig. 1, the present invention provides a technical solution: the utility model provides a high-efficient SOx/NOx control dust collector of kaolin calcining kiln flue gas, including chimney 1, draught fan 2, pipe heat exchanger 3, defeated grey fan 4, ceramic catalytic filter tube reactor 5, aqueous ammonia spray gun 6, desulfurization mixing tower 7, desulfurizer powder storehouse 8, defeated powder fan 9, flue 10 and combustor 11, the exit end of desulfurization mixing tower 7 passes through the entrance point fixed connection of pipeline with combustor 11, the exit end of desulfurizer powder storehouse 8 passes through pipeline and flue 10 intercommunication, the air outlet of defeated powder fan 9 extends to inside the pipeline between desulfurizer powder storehouse 8 and the flue 10, the exit end of flue 10 and the entrance point intercommunication of desulfurization mixing tower 7, the exit end of combustor 11 passes through the entrance point intercommunication of pipeline and ceramic catalytic filter tube reactor 5.
In this embodiment: the ash conveying fan 4, the burner 11, the ceramic catalytic filter tube reactor 5 and the induced draft fan 2 are respectively connected with an automatic control system of an electric instrument in a control way, in use, the ash conveying fan 4, the combustor 11, the ceramic catalytic filter tube reactor 5 and the induced draft fan 2 can be controlled to be used, the outlet end of the desulfurization mixing tower 7 is fixedly connected with the inlet end of the combustor 11 through a pipeline, the flue gas can enter the combustor 11 through the desulfurization mixing tower 7, the outlet end of the desulfurizer powder bin 8 is communicated with the flue 10 through a pipeline, the flue gas in the flue 10 can enter the desulfurizer powder bin 8, the desulfurizer adopts sodium bicarbonate, the sodium bicarbonate and the flue gas can be mixed and contacted through the powder conveying fan 9, thereby make flue gas and baking soda enter into the inside of desulfurization mixing tower 7, desulfurization mixing tower 7 intensive mixing flue gas and soda ash improve desulfurization efficiency.
Specifically, the ceramic catalytic filter tube reactor 5 is composed of a low-temperature catalyst in an SCR catalyst and a ceramic fiber filter tube, and the SCR catalyst is uniformly distributed in the ceramic fiber filter tube layer.
In this embodiment: the catalyst evenly distributed on the ceramic fiber pipe of labyrinth complicacy, the flue gas catalytic filtration is thorough, and the catalyst is difficult for producing and blocks up the poisoning, long service life, and denitration efficiency is high.
In particular, the ammonia lance 6 is located inside the pipe between the burner 11 and the ceramic catalytic filter tube reactor 5.
In this embodiment: the ammonia water is sprayed through the ammonia water spray gun 6, so that the ammonia water contacts with the flue gas, and the flue gas is convenient to treat.
Specifically, the ash conveying fan 4 is arranged at the bottom of the ceramic catalytic filter tube reactor 5, and the outlet end of the ceramic catalytic filter tube reactor 5 is communicated with the pipeline heat exchanger 3 through a pipeline.
In this embodiment: can discharge the dust through defeated grey fan 4, convenient to use because the exit end of ceramic catalysis filter tube reactor 5 passes through pipeline and 3 intercommunications of pipe heat exchanger to can make the flue gas enter into pipe heat exchanger 3's inside, when the flue gas temperature is less than 220 ℃, 11 starts the intensification of combustor, satisfy denitration catalysis temperature.
Specifically, the outlet end of the pipe heat exchanger 3 is communicated with the induced draft fan 2 through a pipe.
In this embodiment: the pipeline heat exchanger 3 makes full use of the waste heat of the flue gas, the temperature of the discharged flue gas reaches more than 130 ℃, heat in the flue gas can be exchanged through the pipeline heat exchanger 3, and the heat can be conveniently used.
Specifically, the air outlet of the induced draft fan 2 is communicated with the chimney 1 through a pipeline.
In this embodiment: the flue gas can be discharged into the chimney 1 through the induced draft fan 2.
When in use, the flue 10 discharges the flue gas, and the baking soda in the desulfurizer powder bin 8 enters the pipeline through the starting of the powder conveying fan 9, the flue gas is contacted with the baking soda, so that the baking soda and the flue gas enter the inside of the desulphurization mixing tower 7, the desulphurization mixing tower 7 fully mixes the flue gas and the baking soda powder, the desulphurization efficiency is improved, after desulfurization, the flue gas and the baking soda are led into the combustor 11, and through the operation of the combustor 11, so that the flue gas enters the interior of the ceramic catalytic filter tube reactor 5, the ammonia water spray gun 6 is started, can spray ammonia water to make the ammonia water contact with flue gas, can discharge dust through the ash conveying fan 4, makes the flue gas enter the pipeline heat exchanger 3 after the flue gas is treated, the flue gas is subjected to heat exchange, and the treated flue gas can be discharged into a chimney 1 through the starting of an induced draft fan 2 and then discharged through the chimney 1.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (6)
1. The utility model provides a high-efficient SOx/NOx control dust collector of kaolin calcining kiln flue gas, includes chimney (1), draught fan (2), pipe heat exchanger (3), defeated grey fan (4), ceramic catalysis filter tube reactor (5), aqueous ammonia spray gun (6), desulfurization mixing tower (7), desulfurizer powder storehouse (8), defeated powder fan (9), flue (10) and combustor (11), its characterized in that: the utility model discloses a desulfurization mixing tower, including desulfurization mixing tower (7), the exit end of desulfurization mixing tower (7) passes through the entrance point fixed connection of pipeline and combustor (11), the exit end in desulfurizer powder storehouse (8) passes through pipeline and flue (10) intercommunication, the air outlet of defeated powder fan (9) extends to inside the pipeline between desulfurizer powder storehouse (8) and flue (10), the exit end of flue (10) and the entrance point intercommunication of desulfurization mixing tower (7), the exit end of combustor (11) passes through the entrance point intercommunication of pipeline and ceramic catalysis filter tube reactor (5).
2. The high-efficiency desulfurization, denitrification and dust removal device for the flue gas of the kaolin calcining kiln as claimed in claim 1, is characterized in that: the ceramic catalytic filter tube reactor (5) is composed of a low-temperature catalyst in an SCR catalyst and a ceramic fiber filter tube, and the SCR catalyst is uniformly distributed in the ceramic fiber filter tube layer.
3. The high-efficiency desulfurization, denitrification and dust removal device for the flue gas of the kaolin calcining kiln as claimed in claim 1, is characterized in that: the ammonia water spray gun (6) is positioned in the pipeline between the burner (11) and the ceramic catalytic filter tube reactor (5).
4. The high-efficiency desulfurization, denitrification and dust removal device for the flue gas of the kaolin calcining kiln as claimed in claim 1, is characterized in that: the ash conveying fan (4) is arranged at the bottom of the ceramic catalytic filter tube reactor (5), and the outlet end of the ceramic catalytic filter tube reactor (5) is communicated with the pipeline heat exchanger (3) through a pipeline.
5. The high-efficiency desulfurization, denitrification and dust removal device for the flue gas of the kaolin calcining kiln as claimed in claim 1, is characterized in that: the outlet end of the pipeline heat exchanger (3) is communicated with the induced draft fan (2) through a pipeline.
6. The high-efficiency desulfurization, denitrification and dust removal device for the flue gas of the kaolin calcining kiln as claimed in claim 1, is characterized in that: and the air outlet of the induced draft fan (2) is communicated with the chimney (1) through a pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020627664.1U CN212663167U (en) | 2020-04-23 | 2020-04-23 | High-efficient SOx/NOx control dust collector of kaolin calcining kiln flue gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020627664.1U CN212663167U (en) | 2020-04-23 | 2020-04-23 | High-efficient SOx/NOx control dust collector of kaolin calcining kiln flue gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212663167U true CN212663167U (en) | 2021-03-09 |
Family
ID=74814841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020627664.1U Active CN212663167U (en) | 2020-04-23 | 2020-04-23 | High-efficient SOx/NOx control dust collector of kaolin calcining kiln flue gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212663167U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114272709A (en) * | 2021-11-10 | 2022-04-05 | 浙江华兴玻璃有限公司 | Novel integrated process for denitration, desulfurization and dust removal of ceramic tube and matched device |
| CN114573321A (en) * | 2022-03-21 | 2022-06-03 | 安徽紫朔环境工程技术有限公司 | Preparation method of catalytic ceramic filter tube based on 3D printing technology |
| CN116272357A (en) * | 2023-05-06 | 2023-06-23 | 凤阳凯盛硅材料有限公司 | Low-temperature treatment method for flue gas denitration |
-
2020
- 2020-04-23 CN CN202020627664.1U patent/CN212663167U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114272709A (en) * | 2021-11-10 | 2022-04-05 | 浙江华兴玻璃有限公司 | Novel integrated process for denitration, desulfurization and dust removal of ceramic tube and matched device |
| CN114573321A (en) * | 2022-03-21 | 2022-06-03 | 安徽紫朔环境工程技术有限公司 | Preparation method of catalytic ceramic filter tube based on 3D printing technology |
| CN116272357A (en) * | 2023-05-06 | 2023-06-23 | 凤阳凯盛硅材料有限公司 | Low-temperature treatment method for flue gas denitration |
| CN116272357B (en) * | 2023-05-06 | 2024-01-09 | 凤阳凯盛硅材料有限公司 | Low-temperature treatment method for flue gas denitration |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN212663167U (en) | High-efficient SOx/NOx control dust collector of kaolin calcining kiln flue gas | |
| CN104888591A (en) | Boiler flue gas denitration purification system and boiler flue gas denitration purification method | |
| CN103406006A (en) | SCR (Selective Catalytic Reduction) denitration device for NOx control of rotary cement kiln | |
| CN104801161A (en) | Glass melting furnace flue gas desulfurization and denitrification process taking petroleum coke as main fuel and equipment of glass melting furnace flue gas desulfurization and denitrification process | |
| CN203494378U (en) | SCR (Selective Catalytic Reduction) denitration device for controlling NOx of rotary cement kiln | |
| CN206823460U (en) | Carbon workshop system for desulfuration and denitration | |
| CN103933841A (en) | Device and method for simultaneously desulfurizing and denitrating sintering smoke | |
| CN110124708A (en) | A kind of cement kiln flue gas SCR denitration catalyst and denitrating system | |
| CN102614775A (en) | Method for removing and recovering low concentration sulfur dioxide in industrial exhaust gas | |
| CN113842761A (en) | Garbage tail gas treatment system and method | |
| CN201832548U (en) | Denitration treatment device for purifying flue gas | |
| CN204543995U (en) | A kind of cement kiln end low-temperature smoke air SCR denitrification apparatus | |
| CN205288047U (en) | Device that flue gas was handled to non - catalytic selectivity reduction method (SNCR) is used to glass kiln | |
| CN212440690U (en) | Ultra-low emission treatment device for lime kiln flue gas | |
| CN109893979A (en) | A kind of desulfurization denitration method for coal-burning boiler | |
| CN113446865A (en) | Ceramic catalyst desulfurization, denitrification and dust removal integrated process | |
| CN205340526U (en) | Device that flue gas was handled to non - catalytic selectivity reduction method (SNCR) is used to glass kiln | |
| CN111895799A (en) | Heating furnace waste gas multi-pollutant cooperative treatment system | |
| CN214075870U (en) | Coke oven flue gas dry desulphurization device | |
| CN215276476U (en) | Desulfurization and denitrification dust removal system | |
| CN212119530U (en) | Lime kiln exhaust gas desulfurization and denitrification system | |
| CN220303664U (en) | Device for reducing CO content of sintering flue gas | |
| CN219399596U (en) | Integrated flue gas treatment device | |
| CN214009259U (en) | Low-temperature dust removal, desulfurization and denitrification integrated system | |
| CN214892659U (en) | Dust removal device system for flue gas of rotary kiln |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |