CN109595570A - Benzoic anhydride tail-gas accumulation of heat incinerator and technique - Google Patents
Benzoic anhydride tail-gas accumulation of heat incinerator and technique Download PDFInfo
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- CN109595570A CN109595570A CN201910063743.6A CN201910063743A CN109595570A CN 109595570 A CN109595570 A CN 109595570A CN 201910063743 A CN201910063743 A CN 201910063743A CN 109595570 A CN109595570 A CN 109595570A
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- regenerative chamber
- back suction
- chamber
- tail
- tail gas
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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
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/44—Details; Accessories
- F23G5/46—Recuperation of heat
-
- 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
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2209/00—Specific waste
- F23G2209/14—Gaseous waste or fumes
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- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Incineration Of Waste (AREA)
Abstract
The present invention relates to a kind of benzoic anhydride tail-gas accumulation of heat incinerator and techniques, belong to tail gas disposal technique field.The present invention is pressurizeed by setting back suction blower to each regenerative chamber back suction and reaction-sintered, makes benzoic anhydride tail-gas circulating combustion, prevents regenerative chamber filler from blocking, and improves tail gas clean-up rate, guarantees the continuous qualified discharge of tail gas.The present invention includes tail gas inlet pipe, exhaust pipe, combustion furnace, waste heat boiler and spray column, the combustion furnace includes positioned at combustion chamber burning furnace bottom regenerative chamber arranged in a straight line and be set to above regenerative chamber, the tail gas inlet pipe and exhaust pipe are connect with each regenerative chamber respectively, the exhaust outlet end is connect with spray column, the top of combustion chamber passes through piping connection waste heat boiler, flue gas after residual heat boiler for exchanging heat passes through piping connection spray column, it further include back suction blower, back suction blower one end is connect by back suction pipe with each regenerative chamber, the other end is connect by pipeline with tail gas inlet pipe.
Description
Technical field
The present invention relates to a kind of benzoic anhydride tail-gas accumulation of heat incinerator and techniques, belong to tail gas disposal technique field.
Background technique
Current benzoic anhydride tail-gas treatment process is frequently with two kinds, and one is water absorption techniques, but due to naphthalene method phthalic anhydride tail
The complicated component of gas causes the fumaric acid product of production for red or yellow, and fumaric acid product is off quality, and water scrubber is stifled
Plug accident is frequent, seriously affects the normal operation of device；Another kind is tail gas accumulation of heat burning process, by combustion furnace to phthalic anhydride tail
Gas is burned, but organic easily put aside at object in benzoic anhydride tail-gas is not easy to be discharged in incinerator bottom, causes bottom recuperation layer stifled
Plug, increases the resistance of oxidative system.
Summary of the invention
It is an object of the invention to overcome drawbacks described above, proposes a kind of benzoic anhydride tail-gas accumulation of heat incinerator and technique, pass through
Setting back suction blower pressurizes to each regenerative chamber back suction and reaction-sintered, makes benzoic anhydride tail-gas circulating combustion, prevents regenerative chamber filler
Blocking improves tail gas clean-up rate, guarantees the continuous qualified discharge of tail gas.
Benzoic anhydride tail-gas accumulation of heat incinerator of the present invention, including tail gas inlet pipe, exhaust pipe, combustion furnace, waste heat boiler
And spray column, the combustion furnace include positioned at burning burning furnace bottom regenerative chamber arranged in a straight line and be set to above regenerative chamber
Room, the tail gas inlet pipe and exhaust pipe are connect with each regenerative chamber respectively, and the exhaust outlet end is connect with spray column, described
By piping connection waste heat boiler, the flue gas after residual heat boiler for exchanging heat is also wrapped top of combustion chamber by piping connection spray column
Include back suction blower, back suction blower one end is connect by back suction pipe with each regenerative chamber, the other end pass through pipeline and tail gas into
Pipe connection.
Described, it connects and is equipped with valve switch, the valve on the tail gas inlet pipe, exhaust pipe, back suction pipe of each regenerative chamber
Door switch controls its on-off by controller.Controller can be PLC.
Described, it further include the combustor being connect with combustion chamber.
Benzoic anhydride tail-gas accumulation of heat burning process of the present invention the following steps are included:
(1) combustion furnace preheats
700 DEG C or more are risen to accumulation of heat room temperature by combustor, chamber temperature rises to 800 DEG C or more；
(2) vent gas treatment
A tail gas air inlet: open first group of regenerator bottom tail gas inlet pipe on valve switch, benzoic anhydride tail-gas through regenerative chamber into
Enter combustion chamber, and combustion decomposition in the combustion chamber；
The pressurization of b back suction: starting back suction blower opens the valve switch on second group of regenerator bottom back suction pipe, in back suction wind
Under machine effect, the flue gas after decomposing in combustion chamber passes through regenerative chamber and enters back suction blower by back suction pipe, through anti-
Enter tail gas inlet pipe after exhaust fan pressurization；
C is vented accumulation of heat: opening the valve switch on third group regenerator bottom exhaust pipe, the flue gas after decomposition is from top to bottom
By regenerative chamber, it is discharged to filler accumulation of heat in regenerative chamber and by exhaust pipe；
Tri- steps of above-mentioned a, b, c carry out simultaneously, and every group of combustion chamber passes through the state reality for changing bottom valve switch
The rotation of existing tail gas air inlet --- back suction pressurization --- exhaust heat accumulation function, switching time can be according to operating condition between 20s-40s
Adjustment；
(3) tail gas is vented
Flue gas a part after decomposing in combustion chamber enters the waste heat boiler connecting with combustion chamber, after residual heat boiler for exchanging heat
It is discharged by spray column, a part is discharged by exhaust outlet end through spray column.
Described, it further include the d reaction-sintered carried out simultaneously with a, b, c in step (2) vent gas treatment, the d reaction is burnt
Knot the following steps are included:
The heating of d1 regenerative chamber
The valve switch on the 4th group of regenerator bottom back suction pipe is opened, after decomposing in back suction fan action lower combustion chamber
Flue gas pass through regenerative chamber, so that regenerative chamber is warming up to setting value, set temperature can according to operating condition 200-260 DEG C it
Between adjust；
The heat preservation of d2 regenerative chamber
The valve switch on the 4th group of regenerator bottom back suction pipe is closed, at this point, the 4th group of regenerative chamber tail gas inlet pipe, exhaust
Valve on pipe is turned off, and keeps the temperature regenerative chamber to setting time, melts residual solid impurity in regenerative chamber, setting time can
It can be adjusted between 10-20min according to operating condition；
D3 regenerative chamber impurities removal cooling
The valve switch on the 4th group of regenerative chamber tail gas inlet pipe is opened, benzoic anhydride tail-gas passes through regenerative chamber through tail gas inlet pipe, will
The solid impurity of d2 regenerative chamber heat preservation melting is blown into combustion chambers burn, while regenerative chamber temperature declines, and closes after reaching set temperature
The valve switch on the 4th group of regenerative chamber tail gas inlet pipe is closed, set temperature can adjust between 160-200 DEG C according to operating condition.
Described, d reaction-sintered is opened after tri- steps of d1, d2, d3 by changing the 4th group of regenerator bottom valve
The state of pass realizes the rotation with any one group of regenerative chamber function in a, b, c.
The beneficial effects of the present invention are: being pressurizeed to each regenerative chamber back suction and reaction-sintered by the way that back suction blower is arranged, make
Benzoic anhydride tail-gas circulating combustion prevents regenerative chamber filler from blocking, and improves tail gas clean-up rate, guarantees the continuous qualified discharge of tail gas；
Flue gas after decomposing in combustion chamber is passed through regenerative chamber by back suction pressurization, makes to remain on regenerative chamber lower layer
Exhaust gas is again introduced into tail gas inlet pipe by back suction blower and back suction pipe and realizes circulating combustion, guarantees the continuous qualified discharge of tail gas；
Reaction-sintered heats up through regenerative chamber, regenerative chamber is kept the temperature, regenerative chamber impurities removal cools down, will be by adhering to when regenerative chamber filler
Organic matter on regenerative chamber filler melts purging, and makes fusant by regenerative chamber, combustion chamber circulating combustion, prevents regenerative chamber
Filler blocking.
Detailed description of the invention
Fig. 1 is a kind of example structure schematic diagram；
In figure: 1, tail gas inlet pipe；2, exhaust pipe；3, combustion furnace；4, waste heat boiler；5, spray column；6, regenerative chamber；7, it burns
Room；8, back suction blower；9, back suction pipe；10, valve switch；11, combustor.
Specific embodiment
The present invention will be further explained below with reference to the attached drawings.
Embodiment 1
As shown in Figure 1, benzoic anhydride tail-gas accumulation of heat incinerator of the present invention, including tail gas inlet pipe 1, exhaust pipe 2, burning
Furnace 3, waste heat boiler 4, spray column 5, back suction blower 8 and combustor 11, the combustion furnace include being located at burning furnace bottom straight line row
Nine regenerative chambers of column and the combustion chamber 7 that is set to above regenerative chamber, the tail gas inlet pipe 1 and exhaust pipe 2 respectively with each storage
Hot cell 6 connects, and the exhaust outlet end is connect with spray column 5, passes through piping connection waste heat boiler 4 at the top of the combustion chamber 7,
Flue gas after the heat exchange of waste heat boiler 4 by piping connection spray column 5, described 8 one end of back suction blower by back suction pipe 9 with it is each
Regenerative chamber 6 connects, and the other end is connect by pipeline with tail gas inlet pipe 1；Connect the tail gas inlet pipe 1 of each regenerative chamber, exhaust pipe 2,
Valve switch 10 is equipped on back suction pipe 9, the valve switch 10 controls its on-off by controller；The combustor 11 and combustion
Room 7 is burnt to connect.
Benzoic anhydride tail-gas accumulation of heat burning process described in the present embodiment the following steps are included:
(1) combustion furnace preheats
750 DEG C are risen to accumulation of heat room temperature by combustor, chamber temperature rises to 850 DEG C；
(2) vent gas treatment
A tail gas air inlet: the valve switch on first group of regenerator bottom tail gas inlet pipe is opened, first group of regenerative chamber is by 5
Regenerative chamber composition, benzoic anhydride tail-gas enters combustion chamber through regenerative chamber, and combustion decomposition in the combustion chamber；
The pressurization of b back suction: starting back suction blower opens the valve switch on second group of regenerator bottom back suction pipe, second group of storage
Hot cell is made of 1 regenerative chamber, and under back suction fan action, the flue gas after decomposing in combustion chamber passes through regenerative chamber simultaneously
Enter back suction blower by back suction pipe, enters tail gas inlet pipe after the pressurization of back suction blower；
C is vented accumulation of heat: opening the valve switch on third group regenerator bottom exhaust pipe, third group regenerative chamber is stored by 3
Hot cell composition, the flue gas after decomposition pass through regenerative chamber, are discharged to filler accumulation of heat in regenerative chamber and by exhaust pipe；
Tri- steps of above-mentioned a, b, c carry out simultaneously, and every group of combustion chamber passes through the state reality for changing bottom valve switch
The rotation of existing tail gas air inlet --- back suction pressurization --- exhaust heat accumulation function, switching time may be configured as 30s；
(3) tail gas is vented
Flue gas a part after decomposing in combustion chamber enters the waste heat boiler connecting with combustion chamber, after residual heat boiler for exchanging heat
It is discharged by spray column, a part is discharged by exhaust outlet end through spray column.
Embodiment 2
As shown in Figure 1, benzoic anhydride tail-gas accumulation of heat incinerator of the present invention, including tail gas inlet pipe 1, exhaust pipe 2, burning
Furnace 3, waste heat boiler 4, spray column 5, back suction blower 8 and combustor 11, the combustion furnace include being located at burning furnace bottom straight line row
Nine regenerative chambers of column and the combustion chamber 7 that is set to above regenerative chamber, the tail gas inlet pipe 1 and exhaust pipe 2 respectively with each storage
Hot cell 6 connects, and the exhaust outlet end is connect with spray column 5, passes through piping connection waste heat boiler 4 at the top of the combustion chamber 7,
Flue gas after the heat exchange of waste heat boiler 4 by piping connection spray column 5, described 8 one end of back suction blower by back suction pipe 9 with it is each
Regenerative chamber 6 connects, and the other end is connect by pipeline with tail gas inlet pipe 1；Connect the tail gas inlet pipe 1 of each regenerative chamber, exhaust pipe 2,
Valve switch 10 is equipped on back suction pipe 9, the valve switch 10 controls its on-off by controller；The combustor 11 and combustion
Room 7 is burnt to connect.
Benzoic anhydride tail-gas accumulation of heat burning process described in the present embodiment the following steps are included:
(1) combustion furnace preheats
750 DEG C are risen to accumulation of heat room temperature by combustor, chamber temperature rises to 850 DEG C；
(2) vent gas treatment
A tail gas air inlet: the valve switch on first group of regenerator bottom tail gas inlet pipe is opened, first group of regenerative chamber is by 5
Regenerative chamber composition, benzoic anhydride tail-gas enters combustion chamber through regenerative chamber, and combustion decomposition in the combustion chamber；
The pressurization of b back suction: starting back suction blower opens the valve switch on second group of regenerator bottom back suction pipe, second group of storage
Hot cell is made of 1 regenerative chamber, and under back suction fan action, the flue gas after decomposing in combustion chamber passes through regenerative chamber simultaneously
Enter back suction blower by back suction pipe, enters tail gas inlet pipe after the pressurization of back suction blower；
C is vented accumulation of heat: opening the valve switch on third group regenerator bottom exhaust pipe, third group regenerative chamber is stored by 3
Hot cell composition, the flue gas after decomposition pass through regenerative chamber, are discharged to filler accumulation of heat in regenerative chamber and by exhaust pipe；
Tri- steps of above-mentioned a, b, c carry out simultaneously, and every group of combustion chamber passes through the state reality for changing bottom valve switch
The rotation of existing tail gas air inlet --- back suction pressurization --- exhaust heat accumulation function, switching time may be configured as 30s；
Further include the d reaction-sintered carried out simultaneously with a, b, c in step (2) vent gas treatment, the d reaction-sintered include with
Lower step:
The heating of d1 regenerative chamber
The valve switch on the 4th group of regenerator bottom back suction pipe is opened, after decomposing in back suction fan action lower combustion chamber
Flue gas pass through regenerative chamber, so that regenerative chamber is warming up to 250 DEG C；
The heat preservation of d2 regenerative chamber
The valve switch on the 4th group of regenerator bottom back suction pipe is closed, at this point, the 4th group of regenerative chamber tail gas inlet pipe, exhaust
Valve on pipe is turned off, and keeps the temperature regenerative chamber to 10min, melts residual solid impurity in regenerative chamber；
D3 regenerative chamber impurities removal cooling
The valve switch on the 4th group of regenerative chamber tail gas inlet pipe is opened, benzoic anhydride tail-gas passes through regenerative chamber through tail gas inlet pipe, will
The solid impurity of d2 regenerative chamber heat preservation melting is blown into combustion chambers burn, while regenerative chamber temperature declines, and the is closed after reaching 160 DEG C
Valve switch on four groups of regenerative chamber tail gas inlet pipes.
Described, d reaction-sintered is opened after tri- steps of d1, d2, d3 by changing the 4th group of regenerator bottom valve
The state of pass realizes the rotation with any one group of regenerative chamber function in a, b, c.
(3) tail gas is vented
Flue gas a part after decomposing in combustion chamber enters the waste heat boiler connecting with combustion chamber, after residual heat boiler for exchanging heat
It is discharged by spray column, a part is discharged by exhaust outlet end through spray column.
Certainly, above content is only presently preferred embodiments of the present invention, be should not be construed as limiting to implementation of the invention
Example range.The present invention is also not limited to the example above, and those skilled in the art are in essential scope of the invention
Interior made all the changes and improvements etc., should all belong in patent covering scope of the invention.
Claims (6)
1. a kind of benzoic anhydride tail-gas accumulation of heat incinerator, including tail gas inlet pipe (1), exhaust pipe (2), combustion furnace (3), waste heat boiler
(4) and spray column (5), the combustion furnace include being located at burning furnace bottom regenerative chamber (6) arranged in a straight line and being set to regenerative chamber
(6) combustion chamber (7) above, the tail gas inlet pipe (1) and exhaust pipe (2) are connect with each regenerative chamber (6) respectively, the exhaust
Pipe outlet end is connect with spray column (5), by piping connection waste heat boiler (4) at the top of the combustion chamber (7), through waste heat boiler
(4) flue gas after exchanging heat passes through piping connection spray column (5), it is characterised in that: further includes back suction blower (8), the back suction wind
Machine (8) one end is connect by back suction pipe (9) with each regenerative chamber (6), and the other end is connect by pipeline with tail gas inlet pipe (1).
2. benzoic anhydride tail-gas accumulation of heat incinerator according to claim 1, it is characterised in that: connect the tail gas of each regenerative chamber
Inlet pipe (1), exhaust pipe (2) are equipped with valve switch (10) on back suction pipe (9), and the valve switch (10) passes through controller control
Make its on-off.
3. benzoic anhydride tail-gas accumulation of heat incinerator according to claim 2, it is characterised in that: further include connecting with combustion chamber (7)
The combustor (11) connect.
4. a kind of benzoic anhydride tail-gas accumulation of heat burning process, which comprises the following steps:
(1) combustion furnace preheats
700 DEG C or more are risen to accumulation of heat room temperature by combustor, chamber temperature rises to 800 DEG C or more；
(2) vent gas treatment
A tail gas air inlet: opening the valve switch on first group of regenerator bottom tail gas inlet pipe, and benzoic anhydride tail-gas enters combustion through regenerative chamber
Burn room, and combustion decomposition in the combustion chamber；
The pressurization of b back suction: starting back suction blower opens the valve switch on second group of regenerator bottom back suction pipe, makees in back suction blower
Under, the flue gas after decomposing in combustion chamber passes through regenerative chamber and enters back suction blower by back suction pipe, through back suction wind
Enter tail gas inlet pipe after machine pressurization；
C is vented accumulation of heat: opening the valve switch on third group regenerator bottom exhaust pipe, the flue gas after decomposition passes through
Regenerative chamber is discharged to filler accumulation of heat in regenerative chamber and by exhaust pipe；
Tri- steps of above-mentioned a, b, c carry out simultaneously, and every group of combustion chamber passes through the state realization tail for changing bottom valve switch
The rotation of gas air inlet --- back suction pressurization --- exhaust heat accumulation function；
(3) tail gas is vented
Flue gas a part after decomposing in combustion chamber enters the waste heat boiler connecting with combustion chamber, passes through after residual heat boiler for exchanging heat
Spray column discharge, a part are discharged by exhaust outlet end through spray column.
5. phthalic anhydride heat accumulating type incineration technique according to claim 4, it is characterised in that: also wrapped in step (2) vent gas treatment
Include the d reaction-sintered carried out simultaneously with a, b, c, the d reaction-sintered the following steps are included:
The heating of d1 regenerative chamber
The valve switch on the 4th group of regenerator bottom back suction pipe is opened, the cigarette after decomposing in back suction fan action lower combustion chamber
Gas passes through regenerative chamber, and regenerative chamber is made to be warming up to setting value；
The heat preservation of d2 regenerative chamber
The valve switch on the 4th group of regenerator bottom back suction pipe is closed, at this point, on the 4th group of regenerative chamber tail gas inlet pipe, exhaust pipe
Valve be turned off, regenerative chamber is kept the temperature to setting time, residual solid impurity is melted；
D3 regenerative chamber impurities removal cooling
The valve switch on the 4th group of regenerative chamber tail gas inlet pipe is opened, benzoic anhydride tail-gas, by regenerative chamber, d2 is stored through tail gas inlet pipe
The solid impurity of hot cell heat preservation melting is blown into combustion chambers burn, while regenerative chamber temperature declines, and reaches and closes the after set temperature
Valve switch on four groups of regenerative chamber tail gas inlet pipes.
6. phthalic anhydride heat accumulating type incineration technique according to claim 5, it is characterised in that: the d reaction-sintered by d1,
After tri- steps of d2, d3, the state by changing the 4th group of regenerator bottom valve switch is realized and any one group of storage in a, b, c
The rotation of hot cell function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910063743.6A CN109595570A (en) | 2019-01-23 | 2019-01-23 | Benzoic anhydride tail-gas accumulation of heat incinerator and technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910063743.6A CN109595570A (en) | 2019-01-23 | 2019-01-23 | Benzoic anhydride tail-gas accumulation of heat incinerator and technique |
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| Publication Number | Publication Date |
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| CN109595570A true CN109595570A (en) | 2019-04-09 |
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ID=65964765
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910063743.6A Withdrawn CN109595570A (en) | 2019-01-23 | 2019-01-23 | Benzoic anhydride tail-gas accumulation of heat incinerator and technique |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110094743A (en) * | 2019-05-24 | 2019-08-06 | 上海兰宝环保科技有限公司 | A kind of three Room exchange heat accumulation type off-gas incineration treatment method |
| CN110500598A (en) * | 2019-07-26 | 2019-11-26 | 新泰市中泰新材料科技有限公司 | A kind of phthalic anhydride production tail gas regenerative oxidation incinerator |
| CN114198758A (en) * | 2021-12-06 | 2022-03-18 | 江苏瑞鼎环境工程有限公司 | Normal butane method maleic anhydride tail gas is with incineration disposal system |
| CN115253630A (en) * | 2022-06-16 | 2022-11-01 | 广东智环盛发环保科技有限公司 | RTO waste gas treatment system with multiple safety protection and treatment method thereof |
-
2019
- 2019-01-23 CN CN201910063743.6A patent/CN109595570A/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110094743A (en) * | 2019-05-24 | 2019-08-06 | 上海兰宝环保科技有限公司 | A kind of three Room exchange heat accumulation type off-gas incineration treatment method |
| CN110500598A (en) * | 2019-07-26 | 2019-11-26 | 新泰市中泰新材料科技有限公司 | A kind of phthalic anhydride production tail gas regenerative oxidation incinerator |
| CN110500598B (en) * | 2019-07-26 | 2020-03-17 | 新泰市中泰新材料科技有限公司 | Phthalic anhydride production tail gas heat accumulation oxidation burns device |
| CN114198758A (en) * | 2021-12-06 | 2022-03-18 | 江苏瑞鼎环境工程有限公司 | Normal butane method maleic anhydride tail gas is with incineration disposal system |
| CN115253630A (en) * | 2022-06-16 | 2022-11-01 | 广东智环盛发环保科技有限公司 | RTO waste gas treatment system with multiple safety protection and treatment method thereof |
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Application publication date: 20190409 |
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