CN106765202A - It is the waste heat utilization system and method for the spent acid pyrolysis furnace of raw material containing organic Waste Sulfuric Acid - Google Patents
It is the waste heat utilization system and method for the spent acid pyrolysis furnace of raw material containing organic Waste Sulfuric Acid Download PDFInfo
- Publication number
- CN106765202A CN106765202A CN201611178299.5A CN201611178299A CN106765202A CN 106765202 A CN106765202 A CN 106765202A CN 201611178299 A CN201611178299 A CN 201611178299A CN 106765202 A CN106765202 A CN 106765202A
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- Prior art keywords
- heat
- pyrolysis furnace
- burner
- gas cooler
- air
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- 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.)
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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
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
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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
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/06—Arrangements of devices for treating smoke or fumes of coolers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L15/00—Heating of air supplied for combustion
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2206/00—Waste heat recuperation
- F23G2206/10—Waste heat recuperation reintroducing the heat in the same process, e.g. for predrying
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Environmental & Geological Engineering (AREA)
- Gasification And Melting Of Waste (AREA)
Abstract
The invention belongs to chemical production technical field, it is adaptable to the Waste Heat Reuse containing the Waste Sulfuric Acid cracking treating device that organic Waste Sulfuric Acid is raw material.Including used heat pyrolysis furnace, burner-gas cooler, air blower, heat transmission equipment and SO2Processing system；High-temperature flue gas out enter burner-gas cooler afterwards from used heat pyrolysis furnace, and SO is entered after being lowered the temperature by cold air2Processing system, cold air is divided into two strands after being heated in burner-gas cooler, and one enters used heat pyrolysis furnace, and for fuel combustion supporting, another stock goes to heat cold medium, for users to use.The present invention had both realized the Waste Heat Reuse of used heat pyrolysis furnace, while the security and stability of plant running will be greatly improved.
Description
Technical field
The invention belongs to chemical production technical field, specially a kind of is the spent acid pyrolysis furnace of raw material containing organic Waste Sulfuric Acid
Waste heat utilization system and method.
Background technology
Domestic and international sulfur waste acid cleavage retracting device flue gas cool-down flow after cracking typically has two kinds, and one is to use waste heat boiler
Stove is lowered the temperature, and another kind is lowered the temperature using natural heat dissipation type furnace gas.Waste heat boiler is lowered the temperature flow, be that high-temperature flue gas enter after pyrolysis furnace
Enter waste heat boiler to be lowered the temperature, the steam for being produced（Or conduction oil）Used for technique or life.Because cold-side temperature is low, cause low
Temperature section fume side wall surface temperature is less than dew-point temperature, condensation acid, the equipment peace worn, have impact on whole device rotten soon occurs
Total stability.It is that high-temperature flue gas are cooled down through natural heat dissipation type furnace gas after pyrolysis furnace for natural heat dissipation type burner-gas cooler flow
Device is lowered the temperature, although reliability is higher, but heat is all lost in air, it is impossible to be utilized, in the present that the energy is very nervous
It this be also worthless.
The content of the invention
It is an object of the invention to provide it is a kind of containing organic Waste Sulfuric Acid for raw material spent acid pyrolysis furnace waste heat utilization system and
Method, can effectively solve problem present in background technology.
Realizing the technical scheme of above-mentioned purpose is：It is the Waste Heat Reuse system of the spent acid pyrolysis furnace of raw material containing organic Waste Sulfuric Acid
System, including used heat pyrolysis furnace, burner-gas cooler and heat transmission equipment；
The high-temperature flue gas outlet of the used heat pyrolysis furnace connects the furnace gas import of burner-gas cooler, by the high temperature of used heat pyrolysis furnace
Heat transferring medium in flue gas burner-gas cooler；
The Heating medium of the heat transferring medium outlet connection heat transmission equipment of burner-gas cooler, heats in burner-gas cooler through high-temperature flue gas
Heat transferring medium afterwards enters heat transmission equipment, used as the thermal source of heat transmission equipment.
As it is of the invention preferably, the furnace gas export of burner-gas cooler is connected with SO2 processing systems, through burner-gas cooler arrange
The waste gas for going out after the treatment of SO2 processing systems by entering air, it is ensured that flue gas qualified discharge, it is to avoid environmental pollution.
As it is of the invention preferably, the heat transmission equipment be heat exchanger or boiler.
As it is of the invention preferably, using air as heat transferring medium, the heat transferring medium of burner-gas cooler enters burner-gas cooler
Mouth connection air blower, the import of air blower and atmosphere.
As it is of the invention preferably, the entrance point of the air blower is connected with the heating agent outlet of heat exchanger simultaneously, makes stove
The heat transferring medium of Gas Cooler is the air that cooling air mixes with atmospheric air.
As it is of the invention preferably, the outlet of the heat transferring medium of the burner-gas cooler connects used heat pyrolysis furnace simultaneously, makes stove
Air part after being heated in Gas Cooler enters used heat pyrolysis furnace, and the burning for used heat pyrolysis furnace is combustion-supporting.
As it is of the invention preferably, the burner-gas cooler is at least one, and connects each other.
It is above-mentioned containing organic Waste Sulfuric Acid for raw material used heat pyrolysis furnace Waste Heat Reuse method, used heat pyrolysis furnace out 950 ~
1200 DEG C of high-temperature flue gas enter SO after cooling to 250 ~ 400 DEG C into burner-gas cooler2Processing system carries out desulfurization process heel row
Enter air；
300 ~ 800 DEG C of heat exchange high temperature air is partly into used heat pyrolysis furnace for combustion-supporting, another part in burner-gas cooler
Into heat transmission equipment as heating agent, the thermal medium after being heated through heat exchanger 4 is for users to use；
The air that the cooling air that the heating agent of heat transmission equipment exports out is mixed to form 70 ~ 200 DEG C with atmospheric air enters furnace gas
Cooler is used as heat transferring medium.
Beneficial effects of the present invention：
1st, burner-gas cooler of the invention changes thermogenetic high temperature air and is partly into used heat pyrolysis furnace for combustion-supporting, reduces combustion
The consumption of material；Another part enters heat transmission equipment and adds cold medium for users to use as heating agent formation, realizes used heat pyrolysis furnace
The efficient utilization of used heat, substantially increases economic benefit.
2nd, 70 ~ 200 DEG C of air that the heat transferring medium of burner-gas cooler is mixed to form using cooling air and atmospheric air, keep away
There is dew point corrosion in the furnace gas side low-temperature zone for having exempted from burner-gas cooler.
Present invention, avoiding two kinds of defects of cooling flow in background technology, the security and stability of system was both ensure that, together
When realize the Waste Heat Reuse of used heat pyrolysis furnace again.
Brief description of the drawings
Fig. 1 is system flow chart of the invention.
Specific embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings and by embodiment, and following examples are to this hair
Bright explanation and the invention is not limited in following examples.
Referring to Fig. 1, containing organic Waste Sulfuric Acid for the waste heat utilization system of the spent acid pyrolysis furnace of raw material include used heat pyrolysis furnace 1,
Burner-gas cooler 2, air blower 3, heat transmission equipment 4 and SO2Processing system 5.
The high-temperature flue gas outlet of the furnace gas import connection used heat pyrolysis furnace 1 of burner-gas cooler 2, by used heat pyrolysis furnace 1
Heat transferring medium in high-temperature flue gas heating burner-gas cooler 2, the furnace gas export connection SO2 processing systems 5 of burner-gas cooler 2, warp
The waste gas of the discharge of burner-gas cooler 2 after the treatment of SO2 processing systems 5 by entering air, it is ensured that flue gas qualified discharge, it is to avoid environment
Pollution.
Using air as heat transferring medium, the heat transferring medium import of burner-gas cooler 2 connects air blower 3 to burner-gas cooler 2,
The import of air blower 3 and atmosphere, the heat transferring medium outlet of burner-gas cooler 2 connect used heat pyrolysis furnace 1 and heat exchange simultaneously
Equipment 4, make the high temperature air after heating be partly into used heat pyrolysis furnace 1 for used heat pyrolysis furnace 1 burning it is combustion-supporting, reduce
The consumption of the work fuel of used heat pyrolysis furnace 1；Another part enters heat transmission equipment 4, as the thermal source of heat transmission equipment 4, realizes used heat
The Waste Heat Reuse of pyrolysis furnace 1, improves economic benefit.
Used as the preferred of the present embodiment, the entrance point of air blower 3 is connected with the heating agent outlet of heat transmission equipment 4 simultaneously, makes
Into the hot-air that the heat transferring medium of burner-gas cooler 2 is mixed to form for cooling air and atmospheric air, it is to avoid furnace gas cooling
There is dew point corrosion in the furnace gas side low-temperature zone of device 2.
Used as the preferred of the present embodiment, burner-gas cooler 2 can be many for being serially connected.
Used as the preferred of the present embodiment, heat transmission equipment 4 is heat exchanger or boiler.
The above-mentioned Waste Heat Reuse method containing the spent acid pyrolysis furnace that organic Waste Sulfuric Acid is raw material is as follows：Used heat pyrolysis furnace 1 is out
950 ~ 1200 DEG C of high-temperature flue gas cool to 250 ~ 400 DEG C into burner-gas cooler 2 after enter SO2Processing system 5 carries out desulfurization
Treatment；
300 ~ 800 DEG C of heat exchange high temperature air is partly into used heat pyrolysis furnace 1 for combustion-supporting, another portion in burner-gas cooler 2
Divide and enter heat transmission equipment 4 as heating agent, the thermal medium after being heated through heat transmission equipment 4 is for users to use.
The cooling air that the heating agent of heat transmission equipment 4 exports out is mixed to form 70 ~ 200 DEG C of air and enters stove with atmospheric air
Gas Cooler 2 is used as heat transferring medium.
Furthermore, it is necessary to illustrate, the specific embodiment described in this specification, the shape of its part, named title
Etc. can be with difference, the above content described in this specification be only to structure example explanation of the present invention.All foundations
Equivalence changes or simple change that construction, feature and principle described in inventional idea of the present invention are done, are included in the present invention
In the protection domain of patent.Those skilled in the art can do various each to described specific embodiment
The modification of sample or supplement are substituted using similar mode, without departing from structure of the invention or surmount the claims
Defined scope, all should belong to protection scope of the present invention.
Claims (8)
1. it is the waste heat utilization system of the spent acid pyrolysis furnace of raw material containing organic Waste Sulfuric Acid, it is characterised in that：Including used heat pyrolysis furnace,
Burner-gas cooler and heat transmission equipment；
The high-temperature flue gas outlet of the used heat pyrolysis furnace connects the furnace gas import of burner-gas cooler, by the high temperature of used heat pyrolysis furnace
Heat transferring medium in flue gas burner-gas cooler；
The Heating medium of the heat transferring medium outlet connection heat transmission equipment of burner-gas cooler, heats in burner-gas cooler through high-temperature flue gas
Heat transferring medium afterwards enters heat transmission equipment, used as the thermal source of heat transmission equipment.
2. according to claim 1 is the waste heat utilization system of the spent acid pyrolysis furnace of raw material, its feature containing organic Waste Sulfuric Acid
It is：The furnace gas export of burner-gas cooler is connected with SO2 processing systems, through the waste gas of burner-gas cooler discharge by SO2 treatment
Air is entered after system treatment.
3. according to claim 1 is the waste heat utilization system of the spent acid pyrolysis furnace of raw material, its feature containing organic Waste Sulfuric Acid
It is：The heat transmission equipment is heat exchanger or boiler.
4. according to claim 1 is the waste heat utilization system of the spent acid pyrolysis furnace of raw material, its feature containing organic Waste Sulfuric Acid
It is：Using air as heat transferring medium, the heat transferring medium import of burner-gas cooler connects air blower, air wind to burner-gas cooler
The import of machine and atmosphere.
5. according to claim 4 is the waste heat utilization system of the spent acid pyrolysis furnace of raw material, its feature containing organic Waste Sulfuric Acid
It is：The entrance point of the air blower is connected with the heating agent outlet of heat transmission equipment simultaneously, makes the heat transferring medium of burner-gas cooler
For the air that cooling air mixes with atmospheric air.
6. according to claim 5 is the waste heat utilization system of the spent acid pyrolysis furnace of raw material, its feature containing organic Waste Sulfuric Acid
It is：The heat transferring medium outlet of the burner-gas cooler connects used heat pyrolysis furnace simultaneously, makes the sky after heating in burner-gas cooler
Gas part enters used heat pyrolysis furnace, and the burning for used heat pyrolysis furnace is combustion-supporting.
7. useless for the spent acid pyrolysis furnace of raw material containing organic Waste Sulfuric Acid according to any one of claim 1-6 claim
Heat utilization system, it is characterised in that：The burner-gas cooler is at least one, and connects each other.
8. according to claim 8 is the Waste Heat Reuse method of the spent acid pyrolysis furnace of raw material, its feature containing organic Waste Sulfuric Acid
It is：Used heat pyrolysis furnace 950 ~ 1200 DEG C of high-temperature flue gas out enter SO after cooling to 250 ~ 400 DEG C into burner-gas cooler2
Processing system enters air after carrying out desulfurization process；
300 ~ 800 DEG C of heat exchange high temperature air is partly into used heat pyrolysis furnace for combustion-supporting, another part in burner-gas cooler
Into heat transmission equipment as heating agent, the thermal medium after being heated through heat transmission equipment is for users to use；
It is cold into furnace gas that the cooling air that the heating agent of heat transmission equipment exports out is mixed to form 70 ~ 200 DEG C of air with atmospheric air
But device is used as heat transferring medium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611178299.5A CN106765202A (en) | 2016-12-19 | 2016-12-19 | It is the waste heat utilization system and method for the spent acid pyrolysis furnace of raw material containing organic Waste Sulfuric Acid |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611178299.5A CN106765202A (en) | 2016-12-19 | 2016-12-19 | It is the waste heat utilization system and method for the spent acid pyrolysis furnace of raw material containing organic Waste Sulfuric Acid |
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| CN106765202A true CN106765202A (en) | 2017-05-31 |
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| CN201611178299.5A Pending CN106765202A (en) | 2016-12-19 | 2016-12-19 | It is the waste heat utilization system and method for the spent acid pyrolysis furnace of raw material containing organic Waste Sulfuric Acid |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112146097A (en) * | 2020-09-18 | 2020-12-29 | 南京合工智能环保研究院有限公司 | Heat exchange device and heat exchange method for waste acid cracking acid making process |
| CN113654050A (en) * | 2021-07-21 | 2021-11-16 | 内蒙古鄂尔多斯电力冶金集团股份有限公司氯碱化工分公司 | Cooling method and system for furnace gas cooler of waste sulfuric acid cracking furnace |
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| CN105570918A (en) * | 2016-01-19 | 2016-05-11 | 安徽富强竹业有限公司 | Energy-saving boiler |
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP3025074B2 (en) * | 1991-09-10 | 2000-03-27 | 三菱重工業株式会社 | Exhaust gas boiler |
| CN1986389A (en) * | 2005-12-22 | 2007-06-27 | 南化集团研究院 | Method of utilizing waste heat after boiling furnace in sulfuric acid production |
| CN101143716A (en) * | 2006-09-15 | 2008-03-19 | 南化集团研究院 | Low concentration sulphur dioxide flue gas acid preparing heat using method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112146097A (en) * | 2020-09-18 | 2020-12-29 | 南京合工智能环保研究院有限公司 | Heat exchange device and heat exchange method for waste acid cracking acid making process |
| CN113654050A (en) * | 2021-07-21 | 2021-11-16 | 内蒙古鄂尔多斯电力冶金集团股份有限公司氯碱化工分公司 | Cooling method and system for furnace gas cooler of waste sulfuric acid cracking furnace |
| CN113654050B (en) * | 2021-07-21 | 2024-01-12 | 内蒙古鄂尔多斯电力冶金集团股份有限公司氯碱化工分公司 | Cooling method and system for waste sulfuric acid cracking furnace gas cooler |
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Application publication date: 20170531 |