CN110425550B - Purifying and treating device and process for tar tail gas and asphalt smoke - Google Patents
Purifying and treating device and process for tar tail gas and asphalt smoke Download PDFInfo
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- CN110425550B CN110425550B CN201910718122.7A CN201910718122A CN110425550B CN 110425550 B CN110425550 B CN 110425550B CN 201910718122 A CN201910718122 A CN 201910718122A CN 110425550 B CN110425550 B CN 110425550B
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- 239000010426 asphalt Substances 0.000 title claims abstract description 66
- 239000000779 smoke Substances 0.000 title claims abstract description 60
- 238000000034 method Methods 0.000 title claims abstract description 22
- 239000007789 gas Substances 0.000 claims abstract description 117
- 238000002485 combustion reaction Methods 0.000 claims abstract description 98
- 239000002912 waste gas Substances 0.000 claims abstract description 31
- 238000009825 accumulation Methods 0.000 claims abstract description 20
- 238000000746 purification Methods 0.000 claims abstract description 11
- 239000002918 waste heat Substances 0.000 claims abstract description 9
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 34
- 239000003546 flue gas Substances 0.000 claims description 34
- 230000001105 regulatory effect Effects 0.000 claims description 34
- 239000003517 fume Substances 0.000 claims description 15
- 238000005338 heat storage Methods 0.000 claims description 14
- 239000010812 mixed waste Substances 0.000 claims description 6
- 238000011144 upstream manufacturing Methods 0.000 claims description 6
- 239000000919 ceramic Substances 0.000 claims description 3
- 239000000571 coke Substances 0.000 claims description 3
- 238000004134 energy conservation Methods 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 238000012545 processing Methods 0.000 description 8
- FMMWHPNWAFZXNH-UHFFFAOYSA-N Benz[a]pyrene Chemical compound C1=C2C3=CC=CC=C3C=C(C=C3)C2=C2C3=CC=CC2=C1 FMMWHPNWAFZXNH-UHFFFAOYSA-N 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 125000005575 polycyclic aromatic hydrocarbon group Chemical group 0.000 description 2
- 206010007269 Carcinogenicity Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007670 carcinogenicity Effects 0.000 description 1
- 231100000260 carcinogenicity Toxicity 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 210000002345 respiratory system Anatomy 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000001926 trapping method Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/08—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating
- F23G5/14—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating including secondary combustion
- F23G5/16—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating including secondary combustion in a separate combustion chamber
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/44—Details; Accessories
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/50—Control or safety arrangements
-
- 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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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J11/00—Devices for conducting smoke or fumes, e.g. flues
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Incineration Of Waste (AREA)
Abstract
The invention relates to a purification treatment device and a purification treatment process for tar tail gas and asphalt smoke, wherein the device comprises an incinerator and a chimney; the incinerator consists of a first combustion chamber, a second combustion chamber, a first heat accumulation chamber and a second heat accumulation chamber, wherein the first combustion chamber is arranged below the second combustion chamber, and the first combustion chamber and the second combustion chamber are mutually communicated; two ends of the first combustion chamber are respectively communicated with the top of the first heat accumulation chamber and the top of the second heat accumulation chamber; a first burner is arranged in the first combustion chamber, a second burner is arranged in the second combustion chamber, and heat accumulators are respectively arranged in the first heat accumulation chamber and the second heat accumulation chamber; the invention adopts the process of combining the heat accumulating type incinerator and the direct combustion type incinerator, can simultaneously purify tar tail gas and asphalt smoke, solves the problems that the heat accumulating type incinerator is difficult to purify asphalt smoke and the direct combustion type incinerator has low thermal efficiency, and simultaneously recycles waste heat of waste gas, reduces the operation cost of the incinerator and achieves the purposes of energy conservation and environmental protection.
Description
Technical Field
The invention relates to the technical field of coal coking industry, in particular to a purification treatment device and a purification treatment process for tar tail gas and asphalt smoke.
Background
Tar processing is a traditional high pollution industry, and in recent years, along with the continuous development of the coal chemical industry, the tar processing industry also rapidly develops, but simultaneously brings adverse effects to the natural environment. A large amount of tar tail gas and asphalt smoke are generated in the tar processing process, if people are in the tail gas polluted environment for a long time, diseases such as respiratory tract, skin and the like can be caused, and particularly benzopyrene in the asphalt smoke has extremely strong carcinogenicity, so the purification and treatment of the tar tail gas and the asphalt smoke are very necessary. The existing treatment methods of tar tail gas and asphalt smoke of tar processing enterprises mainly comprise an absorption method, an adsorption method, an electrostatic trapping method and an incineration method, but other methods except the incineration method have the problems of low purification rate and incomplete purification.
The burning method is to burn the tar tail gas and the asphalt smoke at high temperature to make them thoroughly oxidized and decomposed into CO 2 and H 2 0, so as to achieve the purpose of harmless emission, which is the most thorough tail gas purifying and treating process in the tar processing at present. The tar tail gas is generally burnt by adopting a heat accumulating type incinerator, the burning temperature is 600-800 ℃, and the method has the advantages of high purification rate, high heat efficiency and low operation cost, and is the development trend of tar processing tail gas treatment. Researches show that polycyclic aromatic hydrocarbon such as benzopyrene in the asphalt smoke can be thoroughly decomposed at high temperature of 1000 ℃, and the incineration temperature of the heat accumulating type incinerator is only 600-800 ℃, so that the polycyclic aromatic hydrocarbon is difficult to thoroughly decompose, and therefore, the asphalt smoke can be incinerated by adopting the direct combustion type incinerator. The burning temperature of the direct-fired incinerator is up to above 1000 ℃, and asphalt smoke can be thoroughly purified, but the disadvantages of high smoke discharging temperature, low heat efficiency, high energy consumption and high operation cost exist.
Therefore, when the tar processing enterprises treat the tail gas, besides building a set of heat accumulating type incinerator for incinerating the tar tail gas, a set of direct combustion type incinerator for incinerating the asphalt smoke specially is also needed, so that the problems of high equipment investment and high operation cost are caused, and the popularization and the use of the incineration method in the tail gas treatment in the tar processing industry are greatly limited.
Disclosure of Invention
The invention provides a purifying and treating device and a purifying and treating process for tar tail gas and asphalt smoke, which adopt a process of combining a heat accumulating type incinerator with a direct combustion type incinerator, can simultaneously purify the tar tail gas and the asphalt smoke, not only solve the problem that the heat accumulating type incinerator is difficult to purify the asphalt smoke, but also realize low heat efficiency of the direct combustion type incinerator, and simultaneously recycle waste gas waste heat, reduce the operation cost of the incinerator and achieve the purposes of energy conservation and environmental protection.
In order to achieve the above purpose, the invention is realized by adopting the following technical scheme:
A purifying and treating device for tar tail gas and asphalt smoke comprises an incinerator and a chimney; the incinerator consists of a first combustion chamber, a second combustion chamber, a first heat accumulation chamber and a second heat accumulation chamber, wherein the first combustion chamber is arranged below the second combustion chamber, and the first combustion chamber and the second combustion chamber are mutually communicated; two ends of the first combustion chamber are respectively communicated with the top of the first heat accumulation chamber and the top of the second heat accumulation chamber; a first burner is arranged in the first combustion chamber, a second burner is arranged in the second combustion chamber, and heat accumulators are respectively arranged in the first heat accumulation chamber and the second heat accumulation chamber; the first gas inlet pipe on the first burner and the second gas inlet pipe on the second burner are respectively connected with the coke oven gas pipeline; the first regenerator and the second regenerator are respectively provided with a tar tail gas inlet pipe which is connected with a tar tail gas pipeline through a first three-way switching valve, and a first flue gas fan is arranged on the tar tail gas pipeline at the upstream of the first three-way switching valve; the first regenerator and the second regenerator are respectively provided with an exhaust gas outlet pipe which is connected with an exhaust gas pipeline through a second three-way switching valve, the exhaust gas pipeline is additionally connected with a chimney, and a flue gas preheater is arranged on the exhaust gas pipeline between the second three-way switching valve and the chimney; the second combustion chamber is connected with the smoke preheater and the asphalt smoke pipeline through an asphalt smoke inlet pipe, and a second smoke fan is arranged on the asphalt smoke pipeline.
A first gas regulating valve is arranged on the first gas inlet pipe, a first thermometer is arranged on the first combustion chamber, and the first gas regulating valve and the first thermometer are controlled in an interlocking mode.
The second gas inlet pipe is provided with a second gas regulating valve, the second combustion chamber is provided with a second thermometer, and the second gas regulating valve and the second thermometer are controlled in an interlocking way.
The first burner is connected with the first air blower through a first air inlet pipe, and the second burner is connected with the second air blower through a second air inlet pipe.
The upper part of the chimney is provided with a low-temperature flue gas outlet, the low-temperature flue gas outlet is connected with an asphalt flue gas pipeline at the upstream of the second flue gas fan through an exhaust gas circulating pipeline, the exhaust gas circulating pipeline is provided with an exhaust gas regulating valve, the asphalt flue gas inlet pipe is provided with a pressure gauge, and the pressure gauge and the exhaust gas regulating valve are controlled in an interlocking mode.
The heat accumulator is a ceramic heat accumulator.
A purification treatment process for tar tail gas and asphalt smoke comprises the following steps:
1) The asphalt smoke is sent into a smoke preheater by a second smoke blower to be preheated, and the temperature is increased to 120-150 ℃;
2) The preheated asphalt fume enters a second combustion chamber to be burnt, and the burnt high-temperature waste gas enters a first combustion chamber; a second gas regulating valve is controlled by a second thermometer, and the gas quantity entering a second combustion chamber is automatically regulated, so that the temperature of the second combustion chamber is controlled to be 1000-1100 ℃;
3) The tar tail gas is sent into a first regenerator by a first flue gas fan for preheating, and then enters a first combustion chamber for burning after being mixed with high-temperature waste gas from a second combustion chamber; the first gas regulating valve is controlled by the first thermometer, and the gas quantity entering the first combustion chamber is automatically regulated, so that the temperature of the first combustion chamber is controlled to be 600-800 ℃;
4) The mixed waste gas generated after the first combustion chamber is burnt enters a second heat storage chamber to heat a heat accumulator, waste heat is recovered through a flue gas preheater, the temperature is reduced to below 200 ℃, and the waste gas is discharged to the atmosphere through a chimney;
5) The first three-way switching valve and the second three-way switching valve respectively switch medium flow directions, tar tail gas firstly enters the second heat storage chamber to be preheated, then enters the first combustion chamber to be mixed with high-temperature waste gas from the second combustion chamber to be incinerated, the incinerated mixed waste gas enters the first heat storage chamber to heat the heat storage body, and after waste heat is recovered by the flue gas preheater, the waste gas is discharged to the atmosphere through a chimney;
6) The first three-way switching valve and the second three-way switching valve switch the medium flow direction again;
7) Repeating the steps 3) to 6), and continuously working.
And the waste gas regulating valve is controlled by the pressure gauge, part of low-temperature waste gas discharged by the chimney is circulated into the asphalt smoke pipeline, and the asphalt smoke is diluted and preheated and then sent to the second combustion chamber for incineration.
Compared with the prior art, the invention has the beneficial effects that:
1) The technology that the heat accumulating type incinerator is combined with the direct combustion type incinerator is adopted, the first combustion chamber of the incinerator is equivalent to the conventional combustion chamber of the heat accumulating type incinerator, the incineration temperature is between 600 and 800 ℃ and is used for incinerating tar tail gas, the second combustion chamber is equivalent to the combustion chamber of the direct combustion type incinerator, the incineration temperature is between 1000 and 1100 ℃ and is used for specially incinerating asphalt smoke, the technology can simultaneously purify the tar tail gas and the asphalt smoke, and the problem that the conventional heat accumulating type incinerator is difficult to purify the asphalt smoke is solved;
2) The second combustion chamber of the incinerator inherits the advantage of high incineration temperature of the direct-fired incinerator, but the high-temperature waste gas after incineration is sent into the heat storage chamber along with the high-temperature waste gas after incineration of the first combustion chamber to recover heat, and the heat efficiency is higher than that of the conventional direct-fired incinerator and reaches more than 90%;
3) The waste heat of the waste gas is recycled, and the low-temperature waste gas after the incinerator is utilized to preheat asphalt smoke, so that the consumption of coal gas is reduced, and the operation cost of the incinerator is reduced;
4) Because the adhesion of asphalt fume is extremely strong, the pipeline and the inner wall of equipment are extremely easy to be blocked, part of waste gas discharged by a chimney is circulated into the asphalt fume pipe, and the asphalt fume is diluted and preheated and then sent to a second combustion chamber for incineration, so that the blockage of the fume pipe and the equipment caused by the adhesion of the asphalt fume on the inner wall of the fume pipe and the inner wall of the equipment can be effectively avoided, and the overhaul period of the equipment is prolonged.
Drawings
FIG. 1 is a schematic diagram of a device for purifying and treating tar exhaust and asphalt smoke.
In the figure: 1. the first flue gas fan 2, the second flue gas fan 3, the first air fan 4, the second air fan 5, the incinerator 6, the flue gas preheater 7, the chimney 8, the first gas regulating valve 9, the second gas regulating valve 10, the waste gas regulating valve 11, the first combustion chamber 12, the second combustion chamber 13, the first heat storage chamber 14, the second heat storage chamber 15, the tar tail gas pipeline 16, the first three-way switching valve 17, the waste gas pipeline 18, the second three-way switching valve 19, the tar flue gas pipeline 20, the first burner 21, the first gas inlet pipe 22, the second burner 23, the second gas inlet pipe 24, the first thermometer 25, the second thermometer 26, the pressure gauge 27, the waste gas circulation pipeline
Detailed Description
The following is a further description of embodiments of the invention, taken in conjunction with the accompanying drawings:
As shown in figure 1, the purifying and treating device for tar tail gas and asphalt smoke comprises an incinerator 5 and a chimney 7; the incinerator 5 consists of a first combustion chamber 11, a second combustion chamber 12, a first regenerator 13 and a second regenerator 14, wherein the first combustion chamber 11 is arranged below the second combustion chamber 12, and the first combustion chamber and the second combustion chamber are mutually communicated; the two ends of the first combustion chamber 11 are respectively communicated with the top of the first regenerator 13 and the top of the second regenerator 14; the first combustor 20 is arranged in the first combustion chamber 11, the second combustor 22 is arranged in the second combustion chamber 12, and heat accumulators are respectively arranged in the first heat accumulator 13 and the second heat accumulator 14; the first gas inlet pipe 21 on the first burner 20 and the second gas inlet pipe 23 on the second burner 22 are respectively connected with coke oven gas pipelines; the first regenerator 13 and the second regenerator 14 are respectively provided with a tar tail gas inlet pipe which is connected with a tar tail gas pipeline 15 through a first three-way switching valve 16, and a first flue gas fan 1 is arranged on the tar tail gas pipeline 15 at the upstream of the first three-way switching valve 16; the first heat accumulating chamber 13 and the second heat accumulating chamber 14 are respectively provided with an exhaust gas outlet pipe which is connected with an exhaust gas pipeline 17 through a second three-way switching valve 18, the exhaust gas pipeline 17 is additionally connected with a chimney 7, and a flue gas preheater 6 is arranged on the exhaust gas pipeline 17 between the second three-way switching valve 18 and the chimney 7; the second combustion chamber 12 is connected with the flue gas preheater 6 and the asphalt flue gas pipeline 19 through an asphalt flue gas inlet pipe, and the asphalt flue gas pipeline 19 is provided with a second flue gas fan 2.
The first gas inlet pipe 21 is provided with a first gas regulating valve 8, the first combustion chamber 11 is provided with a first thermometer 24, and the first gas regulating valve 8 and the first thermometer 24 are controlled in an interlocking way.
The second gas inlet pipe 23 is provided with a second gas regulating valve 9, the second combustion chamber 12 is provided with a second thermometer 25, and the second gas regulating valve 9 and the second thermometer 25 are controlled in an interlocking way.
The first burner 11 is connected to the first air blower 3 via a first air inlet pipe, and the second burner 12 is connected to the second air blower 4 via a second air inlet pipe.
The upper part of the chimney 7 is provided with a low-temperature flue gas outlet, the low-temperature flue gas outlet is connected with an asphalt flue gas pipeline 19 at the upstream of the second flue gas fan 2 through an exhaust gas circulation pipeline 27, the exhaust gas circulation pipeline 27 is provided with an exhaust gas regulating valve 10, the asphalt flue gas inlet pipe is provided with a pressure gauge 26, and the pressure gauge 26 and the exhaust gas regulating valve 10 are controlled in an interlocking manner.
The heat accumulator is a ceramic heat accumulator.
A purification treatment process for tar tail gas and asphalt smoke comprises the following steps:
1) The asphalt smoke is sent into a smoke preheater 6 for preheating by a second smoke blower 2, and the temperature is increased to 120-150 ℃;
2) The preheated asphalt fume enters a second combustion chamber 12 for incineration, and the high-temperature waste gas after incineration enters a first combustion chamber 11; the second thermometer 25 controls the second gas regulating valve 9 to automatically regulate the gas quantity entering the second combustion chamber 12, so that the temperature of the second combustion chamber 12 is controlled to be 1000-1100 ℃;
3) The tar tail gas is sent into a first regenerator 13 by a first flue gas fan 1 to be preheated, and then enters a first combustion chamber 11 to be mixed with high-temperature waste gas from a second combustion chamber 12 to be burned; the first temperature meter 24 controls the first gas regulating valve 8 to automatically regulate the gas quantity entering the first combustion chamber 11, so that the temperature of the first combustion chamber 11 is controlled to be 600-800 ℃;
4) The mixed waste gas generated after the first combustion chamber 11 is burnt enters the second heat accumulation chamber 14 to heat the heat accumulation body, then the waste heat is recovered through the flue gas preheater 6, the temperature is reduced to below 200 ℃, and the waste gas is discharged to the atmosphere through the chimney 7;
5) The medium flow directions of the first three-way switching valve 16 and the second three-way switching valve 18 are respectively switched, tar tail gas firstly enters the second heat storage chamber 14 for preheating, then enters the first combustion chamber 11 and the high-temperature waste gas from the second combustion chamber 12 for mixing and then incinerating, the incinerated mixed waste gas enters the first heat storage chamber 13 for heating a heat storage body, and after waste heat is recovered by the flue gas preheater 6, the waste gas is discharged to the atmosphere through the chimney 7;
6) The first three-way switching valve 16 and the second three-way switching valve 18 switch the medium flow direction again;
7) Repeating the steps 3) to 6), and continuously working.
The waste gas regulating valve 10 is controlled by the pressure gauge 26, a part of low-temperature waste gas discharged by the chimney 7 is circulated into the asphalt fume pipeline 19, and asphalt fume is diluted and preheated and then sent to the second combustion chamber for incineration.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (8)
1. The purifying and treating device for the tar tail gas and the asphalt smoke is characterized by comprising an incinerator and a chimney; the incinerator consists of a first combustion chamber, a second combustion chamber, a first heat accumulation chamber and a second heat accumulation chamber, wherein the first combustion chamber is arranged above the second combustion chamber, and the first combustion chamber and the second combustion chamber are mutually communicated; two ends of the first combustion chamber are respectively communicated with the top of the first heat accumulation chamber and the top of the second heat accumulation chamber; a first burner is arranged in the first combustion chamber, a second burner is arranged in the second combustion chamber, and heat accumulators are respectively arranged in the first heat accumulation chamber and the second heat accumulation chamber; the first gas inlet pipe on the first burner and the second gas inlet pipe on the second burner are respectively connected with the coke oven gas pipeline; the first regenerator and the second regenerator are respectively provided with a tar tail gas inlet pipe, 2 tar tail gas inlet pipes are connected with a tar tail gas pipeline through a first three-way switching valve, and a first flue gas fan is arranged on the tar tail gas pipeline at the upstream of the first three-way switching valve; the first regenerator and the second regenerator are respectively provided with an exhaust gas outlet pipe which is connected with an exhaust gas pipeline through a second three-way switching valve, the exhaust gas pipeline is additionally connected with a chimney, and a flue gas preheater is arranged on the exhaust gas pipeline between the second three-way switching valve and the chimney; the second combustion chamber is connected with the smoke preheater and the asphalt smoke pipeline through an asphalt smoke inlet pipe, and a second smoke fan is arranged on the asphalt smoke pipeline.
2. The purifying and treating device for tar exhaust and asphalt fume according to claim 1, wherein the first gas inlet pipe is provided with a first gas regulating valve, the first combustion chamber is provided with a first thermometer, and the first gas regulating valve is controlled by interlocking with the first thermometer.
3. The purifying and treating device for tar exhaust and asphalt fume according to claim 1, wherein the second gas inlet pipe is provided with a second gas regulating valve, the second combustion chamber is provided with a second thermometer, and the second gas regulating valve and the second thermometer are controlled in an interlocking manner.
4. The purifying and treating device for tar exhaust and asphalt fume according to claim 1, wherein the first burner is connected with the first air blower through the first air inlet pipe, and the second burner is connected with the second air blower through the second air inlet pipe.
5. The purifying and treating device for tar tail gas and asphalt smoke according to claim 1, wherein the upper part of the chimney is provided with a low-temperature smoke outlet, the low-temperature smoke outlet is connected with an asphalt smoke pipeline at the upstream of the second smoke fan through an exhaust gas circulating pipeline, the exhaust gas circulating pipeline is provided with an exhaust gas regulating valve, the asphalt smoke inlet pipe is provided with a pressure gauge, and the pressure gauge is controlled in an interlocking manner with the exhaust gas regulating valve.
6. The purifying and treating device for tar exhaust and asphalt fume according to claim 1, wherein the heat accumulator is a ceramic heat accumulator.
7. A process for purifying and treating tar exhaust gas and asphalt smoke based on the device of any one of claims 1 to 6, comprising:
1) The asphalt smoke is sent into a smoke preheater by a second smoke blower to be preheated, and the temperature is increased to 120-150 ℃;
2) The preheated asphalt fume enters a second combustion chamber to be burnt, and the burnt high-temperature waste gas enters a first combustion chamber; a second gas regulating valve is controlled by a second thermometer, and the gas quantity entering a second combustion chamber is automatically regulated, so that the temperature of the second combustion chamber is controlled to be 1000-1100 ℃;
3) The tar tail gas is sent into a first regenerator by a first flue gas fan for preheating, and then enters a first combustion chamber for burning after being mixed with high-temperature waste gas from a second combustion chamber; the first gas regulating valve is controlled by the first thermometer, and the gas quantity entering the first combustion chamber is automatically regulated, so that the temperature of the first combustion chamber is controlled to be 600-800 ℃;
4) The mixed waste gas generated after the first combustion chamber is burnt enters a second heat storage chamber to heat a heat accumulator, waste heat is recovered through a flue gas preheater, the temperature is reduced to below 200 ℃, and the waste gas is discharged to the atmosphere through a chimney;
5) The first three-way switching valve and the second three-way switching valve respectively switch medium flow directions, tar tail gas firstly enters the second heat storage chamber to be preheated, then enters the first combustion chamber to be mixed with high-temperature waste gas from the second combustion chamber to be incinerated, the incinerated mixed waste gas enters the first heat storage chamber to heat the heat storage body, and after waste heat is recovered by the flue gas preheater, the waste gas is discharged to the atmosphere through a chimney;
6) The first three-way switching valve and the second three-way switching valve switch the medium flow direction again;
7) Repeating the steps 3) to 6), and continuously working.
8. The purification treatment process based on the tar exhaust gas and the asphalt smoke as defined in claim 7 is characterized in that a waste gas regulating valve is controlled by a pressure gauge, a part of low-temperature waste gas discharged by a chimney is circulated into an asphalt smoke pipeline, and the asphalt smoke is diluted and preheated and then sent to a second combustion chamber for incineration.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910718122.7A CN110425550B (en) | 2019-08-05 | 2019-08-05 | Purifying and treating device and process for tar tail gas and asphalt smoke |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910718122.7A CN110425550B (en) | 2019-08-05 | 2019-08-05 | Purifying and treating device and process for tar tail gas and asphalt smoke |
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| CN110425550A CN110425550A (en) | 2019-11-08 |
| CN110425550B true CN110425550B (en) | 2024-04-23 |
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| CN201910718122.7A Active CN110425550B (en) | 2019-08-05 | 2019-08-05 | Purifying and treating device and process for tar tail gas and asphalt smoke |
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Families Citing this family (2)
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| CN113663419A (en) * | 2021-09-08 | 2021-11-19 | 四川金汇能新材料股份有限公司 | Tail gas treatment equipment |
| CN113739171A (en) * | 2021-09-23 | 2021-12-03 | 苏州瑞弗逊环保科技有限公司 | Heat accumulating type incinerator for VOCs treatment |
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| CN109489052A (en) * | 2018-11-19 | 2019-03-19 | 上海宝钢节能环保技术有限公司 | Waste gas burning furnace and waste gas treatment equipment |
| CN109539286A (en) * | 2018-12-26 | 2019-03-29 | 中冶焦耐(大连)工程技术有限公司 | The purification treatment technique of glance coal in a kind of modified coal tar pitch production process |
| CN210861131U (en) * | 2019-08-05 | 2020-06-26 | 中冶焦耐(大连)工程技术有限公司 | Purification treatment device for tar tail gas and asphalt smoke |
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2019
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| CN2711548Y (en) * | 2004-06-04 | 2005-07-20 | 徐向成 | Self-preheating bitumen smoke incineration treating device |
| CN108036665A (en) * | 2017-12-29 | 2018-05-15 | 中钢集团鞍山热能研究院有限公司 | Carbon baking furnace flue gas pollutant thermal accumulating incinerator and its processing method |
| CN109489052A (en) * | 2018-11-19 | 2019-03-19 | 上海宝钢节能环保技术有限公司 | Waste gas burning furnace and waste gas treatment equipment |
| CN109539286A (en) * | 2018-12-26 | 2019-03-29 | 中冶焦耐(大连)工程技术有限公司 | The purification treatment technique of glance coal in a kind of modified coal tar pitch production process |
| CN210861131U (en) * | 2019-08-05 | 2020-06-26 | 中冶焦耐(大连)工程技术有限公司 | Purification treatment device for tar tail gas and asphalt smoke |
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