CN110893311A - Asphalt smoke treatment method - Google Patents
Asphalt smoke treatment method Download PDFInfo
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- CN110893311A CN110893311A CN201811065994.XA CN201811065994A CN110893311A CN 110893311 A CN110893311 A CN 110893311A CN 201811065994 A CN201811065994 A CN 201811065994A CN 110893311 A CN110893311 A CN 110893311A
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- asphalt
- smoke
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- incinerator
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/06—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with moving adsorbents, e.g. rotating beds
- B01D53/10—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with moving adsorbents, e.g. rotating beds with dispersed adsorbents
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
- F23G7/06—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
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- Environmental & Geological Engineering (AREA)
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- Oil, Petroleum & Natural Gas (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Biomedical Technology (AREA)
- Health & Medical Sciences (AREA)
- Dispersion Chemistry (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Road Paving Machines (AREA)
Abstract
The invention relates to an asphalt smoke treatment method. A process for treating the asphalt fume features that the asphalt fume with high water content and low smoke content is incinerated in incinerator, and the asphalt fume with high water content and high risk is treated by adsorption method. The invention has the advantages and effects that: the invention classifies and processes the asphalt smoke with different properties, thereby ensuring the standard discharge of the workshop environment and the asphalt smoke, ensuring the optimal production and operation cost, and simultaneously ensuring the system to be stable and reliable, have high operation rate and automation degree and adapt to the current environmental protection requirement.
Description
Technical Field
The invention relates to an asphalt smoke treatment method, in particular to an asphalt smoke treatment method generated in the manufacturing process of anodes, cathodes and electrodes for producing aluminum and carbon graphitized material green bodies in the carbon industry.
Background
Recently, with the increasing work of preventing and treating air pollution in Jingjin Ji and surrounding areas released by the ministry of environmental protection, China will implement special emission limits of air pollutants in Jingjin Ji air pollution transmission channel cities. The overdue period still can not be reached, and the related departments should strictly follow the lawThe law requires the enterprise to correct or limit production, stop production and settle a fine; the severe episodes may justify the shutdown and shutdown after approval. The green body manufacturing process is an important process for producing products such as an anode, a cathode or an electrode, and the emission index of asphalt smoke is 20mg/m3The asphalt smoke treatment process generated in the traditional green body manufacturing process is mainly black purification, namely, the asphalt smoke is adsorbed by adopting powder in the green body manufacturing process, but the black purification has the following problems: 1. the black method purification process collects all the asphalt smoke uniformly for centralized treatment, the asphalt smoke has long pipeline path, condensation phenomenon exists in the conveying process, and the pipeline of the whole system is easy to block; 2. from the actual operation effect, after the black method purification process is operated for a period of time, the waste gas can not reach the standard and be discharged; 3. because the water content of the asphalt smoke generated by the powerful cooler is high, pipelines or cloth bags are easily blocked in the treatment process, so that the whole process cannot normally run, a workshop is full of the taste of the asphalt smoke, and the physical and psychological health of workers is seriously harmed.
In summary, the black method purification process has a drawback that the water content of the asphalt smoke generated by the forced cooling machine is high, which is easy to cause the adhesion and blockage of the pipeline, cloth bag and other equipment, so the process optimization is needed, the asphalt collection point is separately treated, and especially the coolant asphalt smoke with high water content needs to be separately purified. The long-term operation of the system is ensured to be stable and reliable, the asphalt smoke purification effect is good, and the asphalt smoke is discharged after reaching the standard.
Disclosure of Invention
The invention provides an asphalt smoke treatment method for solving the problems, and aims to treat asphalt smoke generated in the green body manufacturing process by different methods, so that the asphalt smoke emission requirement can be met, and the production and operation cost can be reduced.
The present invention provides a method for treating asphalt smoke, which comprises feeding asphalt smoke with high water content but small smoke amount to an incinerator for incineration, and treating asphalt smoke with high water content and low risk by a black adsorption method.
The asphalt smoke is sent to the incinerator through the collecting pipeline, the smoke burnt by the incinerator is sent to the inlet of the collecting pipeline through the smoke return pipeline, and one end of the outlet of the collecting pipeline is connected with the smoke discharge pipeline.
The collecting pipeline is a jacket heat tracing pipe, the inner pipe is communicated with asphalt smoke, and high-temperature smoke generated after the asphalt smoke is combusted is communicated between the inner pipe and the outer pipe.
The inner pipe at the inlet of the collecting pipeline is communicated with one end of the collecting pipeline, and the other end of the collecting pipeline is connected with smoke exhausting equipment.
The fume extractor is a powerful cooler for spraying water to cool the paste or a kneader for processing the paste; or a forced cooler and kneader.
And a second valve and a pressure gauge are arranged on the collecting pipeline.
The flue gas return pipeline is provided with a first valve and a first fan.
The outer wall of the pipeline of the gathering pipeline is subjected to heat preservation treatment by adopting cellucotton.
The incinerator is of a heat accumulation type, natural gas is used as fuel, asphalt smoke with high water content is incinerated, the temperature of a hearth is controlled to be 800-plus-850 ℃, and the exhaust gas temperature is controlled to be 100-plus-150 ℃.
The pressure gauge and the second valve are in closed-loop automatic control, and the second valve is automatically closed after the pressure is detected to exceed a set value.
The black method adsorption method comprises smoke exhaust equipment for generating smoke, wherein the asphalt smoke is exhausted into a reactor and enters a bag-type dust remover after reaction, and a second fan is arranged at an outlet of the bag-type dust remover and is exhausted into a smoke exhaust pipeline through the second fan.
The reactor top be equipped with the feed bin, the feed bin below is equipped with screw conveyer.
The powder in the reactor adsorbs asphalt smoke, the suspended powder is fully mixed with the asphalt smoke flowing in the opposite direction, and the asphalt smoke is adsorbed on the powder.
The fume extractor comprises a green body forming machine, a mixing and kneading machine for treating the paste, a paste room for discharging the waste paste and an asphalt head tank.
The invention has the advantages and effects that: the invention classifies and processes the asphalt smoke with different properties, thereby ensuring the standard discharge of the workshop environment and the asphalt smoke, ensuring the optimal production and operation cost, and simultaneously ensuring the system to be stable and reliable, have high operation rate and automation degree and adapt to the current environmental protection requirement.
Drawings
FIG. 1 is a schematic view of the process flow of the asphalt smoke incineration process of the present invention.
FIG. 2 is a schematic view of the adsorption process of asphalt soot of the present invention.
In the figure: 1. a fume extractor; 2. a collection pipe; 3. a manifold pipe; 4. an incinerator; 5. a first valve; 6. a first fan; 7. a flue gas return duct; 8. a smoke exhaust duct; 9. a second valve; 10. a pressure gauge; 11. a screw conveyor; 12. a reactor; 13. a bag-type dust collector; 14. a second fan; 15. a storage bin.
Detailed Description
The following detailed description of the embodiments of the present invention is provided in connection with the accompanying drawings, but the scope of the present invention is not limited by the embodiments.
Example 1
As shown in FIG. 1, the present invention relates to a method for treating asphalt smoke, which comprises feeding asphalt smoke having a high water content and a small smoke amount to an incinerator for incineration.
The asphalt smoke is sent to the incinerator 4 through the collecting pipeline 3, the smoke burnt by the incinerator 4 is sent to the inlet of the collecting pipeline 3 through the smoke return pipeline 7, and one end of the outlet of the collecting pipeline 3 is connected with the smoke exhaust pipeline 8.
The collecting pipeline 3 is a jacket heat tracing pipe, the inner pipe is communicated with asphalt smoke, high-temperature smoke generated after the asphalt smoke is combusted is communicated between the inner pipe and the outer pipe, the inner pipe at the inlet of the collecting pipeline 3 is communicated with one end of the collecting pipeline 2, and the other end of the collecting pipeline 2 is connected with the smoke exhaust equipment 1; the fume extractor 1 is a powerful cooler for cooling the paste by water spray. After the heat accumulating type incinerator 4 is subjected to incineration treatment, discharged high-temperature flue gas enters the starting end of the collecting pipeline 3 for heat tracing through the flue gas return pipeline 7 after passing through the first fan 6, and is finally discharged through the smoke discharge pipeline. The purpose is to prevent asphalt smoke from being cooled and condensed in the long-distance conveying process.
The collecting pipeline 3 is provided with a second valve 9 and a pressure gauge 10, the pressure gauge 10 and the second valve 9 are closed-loop automatic control, and the second valve 9 is automatically closed when the pressure is detected to exceed a set value. The second valve 9 is electrically operated, the pressure gauge 10 is attached to the collecting duct 3 near the inlet of the incinerator 4, and the second valve 9 is attached to a position not far upstream thereof, thereby preventing the system from being backfire in the case of an abnormality in the incinerator 4.
And a first valve 5 and a first fan 6 are arranged on the smoke return pipeline 7.
The outer wall of the pipeline 3 of the collecting pipeline is subjected to heat preservation treatment by adopting cellucotton.
The incinerator 4 is of a heat accumulation type, natural gas is used as fuel, asphalt smoke with high water content is incinerated, the temperature of a hearth is controlled to be 800-fold 850 ℃, and the exhaust gas temperature is controlled to be 100-fold 150 ℃.
Example 2
The fume extractor of example 1 was a kneader for processing paste, and the procedure was otherwise the same as in example 1.
Example 3
The fume extractor in example 1 was a forced cooler and a kneader, and the other examples were the same as example 1.
Example 4
The invention relates to an asphalt smoke treatment method, which is used for treating asphalt smoke with large amount, low water content and high risk by adopting an incineration method by adopting a black method adsorption method, wherein the black method adsorption method comprises a smoke exhaust device 1 for generating smoke, the asphalt smoke is discharged into a reactor 12 and enters a bag-type dust remover 13 after reaction, and a second fan 14 is arranged at the outlet of the bag-type dust remover 13 and is discharged into a smoke exhaust pipeline 8 through the second fan 14.
A bin 15 is arranged above the reactor 12, and a screw conveyer 11 is arranged below the bin 15.
The powder in the reactor 12 adsorbs the asphalt smoke, and the suspended powder is fully mixed with the asphalt smoke flowing in the opposite direction and adsorbs the asphalt smoke on the powder.
The fume extractor is a green body forming machine.
Example 5
The fume extractor of example 4 was a kneader for processing paste, and the procedure was otherwise the same as in example 4.
Example 6
The fume exhaust apparatus in example 4 was used in the paste discharge system of example 4, and the other steps were the same as in example 4.
Example 7
The fume extractor in example 4 is an asphalt head tank, and the rest is the same as example 4.
Claims (14)
1. A process for treating the asphalt fume features that the asphalt fume with high water content and low smoke content is incinerated in incinerator, and the asphalt fume with high water content and high risk is treated by black adsorption method.
2. The method according to claim 1, wherein the asphalt smoke is delivered to the incinerator through a collecting duct, and the smoke burned by the incinerator is delivered to an inlet of the collecting duct through a smoke return duct, and is connected to a smoke discharge duct at one end of an outlet of the collecting duct.
3. The asphalt smoke treatment method according to claim 2, wherein the collecting pipe is a jacket heat tracing pipe, the inner pipe is communicated with the asphalt smoke, and high-temperature smoke generated after the asphalt smoke is combusted is communicated between the inner pipe and the outer pipe.
4. The method of claim 3, wherein the inner pipe at the inlet of the collecting duct is connected to one end of the collecting duct, and the other end of the collecting duct is connected to the smoke exhausting device.
5. The asphalt fume treatment method according to claim 4, wherein the fume exhaust equipment is a forced cooler for water-jet cooling of the paste or a kneader for treating the paste; or a forced cooler and kneader.
6. The method of claim 3, wherein the collecting pipe is provided with a second valve and a pressure gauge.
7. The asphalt smoke treatment method according to claim 2, wherein the smoke return duct is provided with a first valve and a first fan.
8. The asphalt fume treatment method according to claim 6, wherein the outer wall of the pipeline of the collecting pipeline is subjected to heat preservation treatment by using fiber cotton.
9. The method as claimed in claim 2, wherein the incinerator is of heat storage type, natural gas is used as fuel to incinerate the asphalt smoke with high water content, the furnace temperature is controlled to be 800-850 ℃, and the exhaust temperature is controlled to be 100-150 ℃.
10. The method of claim 6, wherein the pressure gauge and the second valve are automatically controlled in a closed loop, and the second valve is automatically closed when the pressure is detected to exceed a predetermined value.
11. The asphalt smoke treatment method according to claim 1, wherein the black adsorption method comprises a smoke exhaust device for generating smoke, the asphalt smoke is discharged into the reactor and enters the bag-type dust remover after reaction, and the outlet of the bag-type dust remover is provided with a second fan and is discharged into a smoke exhaust pipeline through the second fan.
12. The method of claim 11, wherein a hopper is disposed above the reactor, and a screw conveyor is disposed below the hopper.
13. The method of claim 11, wherein the powder in the reactor adsorbs the asphalt fumes, and the suspended powder is mixed with the asphalt fumes flowing in a reverse direction to adsorb the asphalt fumes onto the powder.
14. The asphalt fume processing method according to claim 11, wherein the fume exhaust facility is a green body forming machine, a kneader for processing paste, a paste room for discharging waste paste, and an asphalt head tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811065994.XA CN110893311A (en) | 2018-09-13 | 2018-09-13 | Asphalt smoke treatment method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811065994.XA CN110893311A (en) | 2018-09-13 | 2018-09-13 | Asphalt smoke treatment method |
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| Publication Number | Publication Date |
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| CN110893311A true CN110893311A (en) | 2020-03-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811065994.XA Pending CN110893311A (en) | 2018-09-13 | 2018-09-13 | Asphalt smoke treatment method |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1077395A (en) * | 1992-04-14 | 1993-10-20 | 抚顺石油学院 | A kind of method of asphalt flue gas purifying |
| ES2226563A1 (en) * | 2003-05-16 | 2005-03-16 | Fundacio Agbar, Centre D'estudis I Investigacio Del Medi Ambient | Process for manufacturing ceramic elements from muds from residual-water treatment plants |
| CN101614399A (en) * | 2008-06-23 | 2009-12-30 | 贵阳铝镁设计研究院 | A kind of pitch smoke incinerating and purifying system with residual heat using device |
| CN102000483A (en) * | 2010-09-29 | 2011-04-06 | 云南源鑫炭素有限公司 | Method for treating asphalt gas efficiently and harmlessly |
| CN201949768U (en) * | 2011-01-06 | 2011-08-31 | 吴阿元 | Dry type coating paint waste gas treatment device |
| CN205717250U (en) * | 2016-04-21 | 2016-11-23 | 沈阳铝镁科技有限公司 | A kind of asphalt smoke gas purifying incinerator |
-
2018
- 2018-09-13 CN CN201811065994.XA patent/CN110893311A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1077395A (en) * | 1992-04-14 | 1993-10-20 | 抚顺石油学院 | A kind of method of asphalt flue gas purifying |
| ES2226563A1 (en) * | 2003-05-16 | 2005-03-16 | Fundacio Agbar, Centre D'estudis I Investigacio Del Medi Ambient | Process for manufacturing ceramic elements from muds from residual-water treatment plants |
| CN101614399A (en) * | 2008-06-23 | 2009-12-30 | 贵阳铝镁设计研究院 | A kind of pitch smoke incinerating and purifying system with residual heat using device |
| CN102000483A (en) * | 2010-09-29 | 2011-04-06 | 云南源鑫炭素有限公司 | Method for treating asphalt gas efficiently and harmlessly |
| CN201949768U (en) * | 2011-01-06 | 2011-08-31 | 吴阿元 | Dry type coating paint waste gas treatment device |
| CN205717250U (en) * | 2016-04-21 | 2016-11-23 | 沈阳铝镁科技有限公司 | A kind of asphalt smoke gas purifying incinerator |
Non-Patent Citations (2)
| Title |
|---|
| 刘建秋等: "《煤化工安全与环保》", 31 August 2015, 中国环境科学出版社 * |
| 王平甫等: "《铝电解炭阳极技术 1》", 30 April 2002, 冶金工业出版社 * |
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