CN215654637U - Flue gas purification system of graphite roasting furnace - Google Patents
Flue gas purification system of graphite roasting furnace Download PDFInfo
- Publication number
- CN215654637U CN215654637U CN202122200704.1U CN202122200704U CN215654637U CN 215654637 U CN215654637 U CN 215654637U CN 202122200704 U CN202122200704 U CN 202122200704U CN 215654637 U CN215654637 U CN 215654637U
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- CN
- China
- Prior art keywords
- flue gas
- purification system
- gas purification
- roasting furnace
- graphite
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 53
- 239000003546 flue gas Substances 0.000 title claims abstract description 53
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 22
- 239000010439 graphite Substances 0.000 title claims abstract description 22
- 229910002804 graphite Inorganic materials 0.000 title claims abstract description 22
- 238000000746 purification Methods 0.000 title claims abstract description 21
- 230000003647 oxidation Effects 0.000 claims abstract description 18
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 18
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical group [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000002250 absorbent Substances 0.000 claims abstract description 8
- 230000002745 absorbent Effects 0.000 claims abstract description 8
- 239000011575 calcium Substances 0.000 claims abstract description 8
- 229910052791 calcium Inorganic materials 0.000 claims abstract description 8
- 239000003463 adsorbent Substances 0.000 claims abstract description 7
- 239000007800 oxidant agent Substances 0.000 claims abstract description 7
- 230000001590 oxidative effect Effects 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 4
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical group [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims description 9
- 239000000428 dust Substances 0.000 claims description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 2
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 12
- AKEJUJNQAAGONA-UHFFFAOYSA-N sulfur trioxide Chemical compound O=S(=O)=O AKEJUJNQAAGONA-UHFFFAOYSA-N 0.000 description 12
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 11
- 238000011282 treatment Methods 0.000 description 8
- 239000003344 environmental pollutant Substances 0.000 description 7
- 231100000719 pollutant Toxicity 0.000 description 7
- 239000000779 smoke Substances 0.000 description 7
- 238000006477 desulfuration reaction Methods 0.000 description 6
- 230000023556 desulfurization Effects 0.000 description 6
- 239000010426 asphalt Substances 0.000 description 4
- 238000003795 desorption Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 150000002222 fluorine compounds Chemical class 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- RWFBQHICRCUQJJ-NUHJPDEHSA-N (S)-nicotine N(1')-oxide Chemical compound C[N+]1([O-])CCC[C@H]1C1=CC=CN=C1 RWFBQHICRCUQJJ-NUHJPDEHSA-N 0.000 description 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000011329 calcined coke Substances 0.000 description 1
- 230000000711 cancerogenic effect Effects 0.000 description 1
- 231100000315 carcinogenic Toxicity 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical group O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000002006 petroleum coke Substances 0.000 description 1
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Abstract
The utility model discloses a flue gas purification system of a graphite roasting furnace, belonging to the field of flue gas purification. This flue gas purification system of graphite roasting furnace, including the flue gas processing apparatus that connects gradually, flue gas oxidation device, circulating fluidized bed reactor and sack cleaner, flue gas processing apparatus embeds there is the adsorbent, and flue gas oxidation device embeds there is strong oxidant, and circulating fluidized bed reactor embeds there is calcium-based alkaline absorbent, venturi device and nozzle, and calcium-based alkaline absorbent spouts the expanding section of venturi device with likepowder form, and the nozzle spouts into the atomized water simultaneously. The utility model has low operation cost and long service life.
Description
Technical Field
The utility model relates to the technical field of flue gas purification, in particular to a flue gas purification system of a graphite roasting furnace.
Background
In the roasting process of the graphite roasting furnace, about 5000Nm3 roasting smoke is generated every 1 ton of prebaked anode is produced, and the smoke components of the roasting furnace are complicated because the ingredients contain calcined coke calcined by petroleum coke, asphalt used as a binder and the like. The main pollutants comprise particulate matters, SO2, NOX, fluoride, asphalt smoke and the like, the smoke quantity is large, the pollutant concentration is high, and various carcinogenic components are contained, SO that the pollutants need to be removed in the anode production process.
Generally speaking, the temperature of the generated smoke is 120-180 ℃, and the main pollutants comprise particulate matters (100-500mg/m3), S02(200-800mg/m3), NOx (50-150mg/m3), fluorides (50100mg/m3) and asphalt smoke (50-200mg/m 3). The emission of various pollutants in the flue gas exceeds the standard, and the flue gas is polluted.
At present, the requirement of people on environmental protection is higher and higher, and China also sets strict control standards on the emission of various pollutants. Therefore, the development of the combined control technology for multiple pollutants in the flue gas of the graphite roasting furnace has great significance for realizing the combined removal of sulfur dioxide, nitrogen oxides, fluorides and asphalt smoke in the flue gas.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a flue gas purification system of a graphite roasting furnace, which has low operation cost and long service life.
In order to realize the purpose of the utility model, the utility model discloses a flue gas purification system of a graphite roasting furnace, which adopts the following technical scheme:
the utility model provides a graphite bakes burning furnace flue gas purification system over a slow fire, is including the flue gas processing apparatus that connects gradually, flue gas oxidation unit, circulating fluidized bed reactor and sack cleaner, and flue gas processing apparatus embeds there is the adsorbent, and flue gas oxidation unit embeds there is strong oxidant, and circulating fluidized bed reactor embeds there is calcium-based alkaline absorbent, venturi device and nozzle, and calcium-based alkaline absorbent spouts the expanding section of venturi device with likepowder form, and the nozzle spouts atomizing water simultaneously. Harmful substances such as tar in the flue gas are removed through the flue gas treatment device, damage to the ozone oxidation device and the desulfurization device is avoided, and the service life is prolonged.
The utility model further provides a further improvement of the flue gas purification system of the graphite roasting furnace, wherein the adsorbent is aluminum oxide applied to the graphite roasting furnace in the electrolytic aluminum industry. The flue gas does not need to be subjected to heat exchange, temperature rise, temperature reduction and other treatments, and the operation cost is reduced.
The utility model further improves the flue gas purification system of the graphite roasting furnace, wherein the strong oxidant is ozone. When ozone oxidation nitrogen oxide, can also become sulfur trioxide with the sulfur dioxide oxidation, can effectual desorption sulfur trioxide.
The utility model further improves a flue gas purification system of a graphite roasting furnace, wherein a pulse type bag-type dust remover is adopted as the bag-type dust remover.
Compared with the prior art, the utility model has the beneficial effects that:
1. the denitration and desulfurization functions are integrally realized, the construction cost is greatly reduced compared with the conventional independent desulfurization equipment and denitration equipment, and the floor area of the equipment is also reduced.
2. When ozone oxidation nitrogen oxide, can also become sulfur trioxide with the sulfur dioxide oxidation, and the circulating fluidized bed semidry process desulfurization technique that this project adopted can effectual desorption sulfur trioxide.
3. Aiming at the characteristics of the flue gas of the graphite roasting furnace, the project does not need to carry out heat exchange, temperature rise, temperature reduction and other treatments on the flue gas, and the operation cost is reduced.
4. Harmful substances such as tar in the flue gas are removed through the flue gas treatment device, damage to the ozone oxidation device and the desulfurization device is avoided, and the service life is prolonged.
Drawings
FIG. 1 is a schematic flow chart of the present invention.
Wherein, 1 flue gas processing apparatus, 2 flue gas oxidation unit, 3 sack cleaner, 4 circulating fluidized bed reactors.
Detailed Description
The present invention is further illustrated by the following detailed description, which is to be construed as merely illustrative and not limitative of the remainder of the disclosure, and modifications and variations such as those ordinarily skilled in the art are intended to be included within the scope of the present invention as defined in the appended claims.
It should be noted that: like reference numbers and letters refer to like 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 "vertical", "peripheral surface" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that are conventionally placed when the products of the present invention are used, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or the element to which the description refers must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. 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 term "vertical" or the like does not imply that the components are required to be absolutely horizontal or overhanging, 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, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1, a flue gas purification system of a graphite roasting furnace comprises a flue gas treatment device 1, a flue gas oxidation device 2, a circulating fluidized bed reactor 4 and a bag-type dust collector 3 which are connected in sequence, wherein an adsorbent is arranged in the flue gas treatment device 1, a strong oxidant is arranged in the flue gas oxidation device 2, a calcium-based alkaline absorbent, a venturi device and a nozzle are arranged in the circulating fluidized bed reactor 4, the calcium-based alkaline absorbent is sprayed into an expansion section of the venturi device in a powdery form, and simultaneously atomized water is sprayed into the nozzle. Harmful substances such as tar in the flue gas are removed through the flue gas treatment device 1, damage to an ozone oxidation device and a desulfurization device is avoided, and the service life is prolonged.
Specifically, the adsorbent is alumina in the electrolytic aluminum industry applied to a graphite roasting furnace. The flue gas does not need to be subjected to heat exchange, temperature rise, temperature reduction and other treatments, and the operation cost is reduced.
In particular, the strong oxidant is ozone. When ozone oxidation nitrogen oxide, can also become sulfur trioxide with the sulfur dioxide oxidation, can effectual desorption sulfur trioxide.
Specifically, the bag-type dust collector 3 is a pulse-type bag-type dust collector 3.
Claims (4)
1. The utility model provides a flue gas purification system is baked burning furnace over a slow fire to graphite which characterized in that: including the flue gas processing apparatus who connects gradually, flue gas oxidation unit, circulating fluidized bed reactor and sack cleaner, flue gas processing apparatus embeds there is the adsorbent, flue gas oxidation apparatus embeds there is strong oxidant, circulating fluidized bed reactor embeds there is calcium-based alkaline absorbent, venturi device and nozzle, calcium-based alkaline absorbent spouts with likepowder form the expansion section of venturi device, the nozzle spouts into the atomized water simultaneously.
2. The flue gas purification system for the graphite roasting furnace according to claim 1, wherein the flue gas purification system comprises: the adsorbent is alumina in the electrolytic aluminum industry applied to the graphite roasting furnace.
3. The flue gas purification system for the graphite roasting furnace according to claim 1, wherein the flue gas purification system comprises: the strong oxidant is ozone.
4. The flue gas purification system for the graphite roasting furnace according to claim 1, wherein the flue gas purification system comprises: the bag-type dust remover adopts a pulse bag-type dust remover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122200704.1U CN215654637U (en) | 2021-09-11 | 2021-09-11 | Flue gas purification system of graphite roasting furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122200704.1U CN215654637U (en) | 2021-09-11 | 2021-09-11 | Flue gas purification system of graphite roasting furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215654637U true CN215654637U (en) | 2022-01-28 |
Family
ID=79962615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122200704.1U Active CN215654637U (en) | 2021-09-11 | 2021-09-11 | Flue gas purification system of graphite roasting furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215654637U (en) |
-
2021
- 2021-09-11 CN CN202122200704.1U patent/CN215654637U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: Building 19, District 7, No. 188, South Fourth Ring West Road, Fengtai District, Beijing 100071 Patentee after: Beijing Fengye Xinneng Technology Co.,Ltd. Country or region after: China Address before: Building 19, District 7, No. 188, South Fourth Ring West Road, Fengtai District, Beijing 100071 Patentee before: BEIJING FENGYE ENVIRONMENTAL PROTECTION ENGINEERING Co.,Ltd. Country or region before: China |