CN209484627U - Benzoic anhydride tail-gas accumulation of heat incinerator - Google Patents
Benzoic anhydride tail-gas accumulation of heat incinerator Download PDFInfo
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- CN209484627U CN209484627U CN201920120126.0U CN201920120126U CN209484627U CN 209484627 U CN209484627 U CN 209484627U CN 201920120126 U CN201920120126 U CN 201920120126U CN 209484627 U CN209484627 U CN 209484627U
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- regenerative chamber
- back suction
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Abstract
The utility model relates to a kind of benzoic anhydride tail-gas accumulation of heat incinerators, belong to tail gas disposal technique field.The utility model is pressurizeed by setting back suction blower to each regenerative chamber back suction and reaction-sintered, make benzoic anhydride tail-gas circulating combustion, prevent regenerative chamber filler from blocking, improve tail gas clean-up rate, guarantee the continuous qualified discharge of tail gas, described in the utility model 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 utility model relates to a kind of benzoic anhydride tail-gas accumulation of heat incinerators, 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.
Utility model content
The purpose of the utility model is to overcome drawbacks described above, a kind of benzoic anhydride tail-gas accumulation of heat incinerator are proposed, by setting
Back suction blower is set to the pressurization of regenerative chamber back suction and reaction-sintered, makes benzoic anhydride tail-gas circulating combustion, prevents regenerative chamber filler from blocking, mention
High exhaust gas purifying rate guarantees the continuous qualified discharge of tail gas.
Benzoic anhydride tail-gas accumulation of heat incinerator described in the utility model, including tail gas inlet pipe, exhaust pipe, combustion furnace, waste heat
Boiler, back suction blower and spray column, the combustion furnace include positioned at burning furnace bottom regenerative chamber arranged in a straight line and being set to storage
Combustion chamber above hot cell, the tail gas inlet pipe and exhaust pipe are connect with each regenerative chamber respectively, the exhaust outlet end with
Spray column connection, for the top of combustion chamber by piping connection waste heat boiler, the flue gas after residual heat boiler for exchanging heat passes through pipeline
Connect spray column, 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.Combustor is used to heat up to regenerative chamber and combustion chamber.
Use principle and process:
Benzoic anhydride tail-gas enters regenerative chamber by tail gas inlet pipe, subsequently into combustion chamber, chamber temperature stablize 800 DEG C with
On, organic in exhaust gas is oxidized to carbon dioxide and water at object, and flue gas a part of generation enters other regenerative chamber, with
Ceramic packing exchanges heat in regenerative chamber, completes the heat-accumulating process of regenerative chamber, and the heat of savings is used further to preheat the benzene newly entered
Acid anhydride tail gas;Another part flue gas enters waste heat boiler and carries out heat exchange, is discharged into atmosphere by spray column.
It is opened specifically, back suction is pressurised into the valve that starting back suction blower is opened on one of regenerator bottom back suction pipe
It closes, under back suction fan action, the flue gas after decomposing in combustion chamber passes through regenerative chamber and entered by back suction pipe anti-
Exhaust fan enters tail gas inlet pipe after the pressurization of back suction blower;
Reaction-sintered is the valve switch opened on one of regenerator bottom back suction pipe, is fired under back suction fan action
Flue gas after burning indoor decomposition passes through regenerative chamber, so that regenerative chamber is warming up to setting value, set temperature can be according to operating condition
It is adjusted between 200-260 DEG C;The valve switch being then shut off on regenerator bottom back suction pipe, at this point, the regenerative chamber tail gas into
Valve on pipe, exhaust pipe is turned off, and keeps the temperature regenerative chamber to setting time, melts residual solid impurity in regenerative chamber, if
Fixing time can adjust between 10-20min according to operating condition;Finally open the valve switch on the regenerative chamber tail gas inlet pipe, phthalic anhydride
The solid impurity of heat preservation melting, by regenerative chamber, is blown into combustion chambers burn, while at a temperature of regenerative chamber through tail gas inlet pipe by tail gas
Drop closes the valve switch on the regenerative chamber tail gas inlet pipe after reaching set temperature, and set temperature can be according to operating condition in 160-200
It is adjusted between DEG C.
The beneficial effects of the utility model are: being pressurizeed and being reacted to each regenerative chamber back suction burning by the way that back suction blower is arranged
Knot, 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;
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 utility model is described in further detail with reference to the accompanying drawing.
As shown in Figure 1, benzoic anhydride tail-gas accumulation of heat incinerator described in the utility model, including tail gas inlet pipe 1, exhaust pipe 2,
Combustion furnace 3, waste heat boiler 4, spray column 5, back suction blower 8 and combustor 11, the combustion furnace include straight positioned at burning furnace bottom
Nine regenerative chambers of line arrangement and the combustion chamber 7 that is set to above regenerative chamber, the tail gas inlet pipe 1 and exhaust pipe 2 are respectively and respectively
A regenerative chamber 6 connects, and the exhaust outlet end is connect with spray column 5, passes through piping connection waste heat pot at the top of the combustion chamber 7
Furnace 4, the 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
Each regenerative chamber 6 connects, and the other end is connect by pipeline with tail gas inlet pipe 1;Connect tail gas inlet pipe 1, the exhaust of each regenerative chamber
Valve switch 10 is equipped on pipe 2, back suction pipe 9, the valve switch 10 controls its on-off by controller;The combustor 11
It is connect with combustion chamber 7.
Benzoic anhydride tail-gas enters regenerative chamber 6 by tail gas inlet pipe 1, and subsequently into combustion chamber 7,7 temperature of combustion chamber is stablized 800
DEG C or more, organic in exhaust gas is oxidized to carbon dioxide and water at object, and flue gas a part of generation enters other accumulation of heat
Flue gas is discharged by base bleed pipe, while exchanged heat to ceramic packing in regenerative chamber 6 by room 6, completes the storage of regenerative chamber 6
Thermal process, the heat of savings are used further to preheat the benzoic anhydride tail-gas newly entered;Another part flue gas enters waste heat boiler 4 and carries out hot friendship
It changes, is discharged into atmosphere by spray column 5.Specifically, nine regenerative chambers wherein valve on four regenerator bottom tail gas inlet pipes
Switch is opened, wherein the valve switch on three regenerator bottom exhaust pipes is opened, one of regenerative chamber is in back suction pressurization
State, a regenerative chamber are in reaction-sintered state;Back suction is pressurised into starting back suction blower 8 and opens one of regenerator bottom
Valve switch on back suction pipe, under the effect of back suction blower 8, the flue gas after decomposing in combustion chamber 7 passes through regenerative chamber
And back suction blower 8 is entered by back suction pipe 9, enter tail gas inlet pipe 1 after the pressurization of back suction blower 8, realizes circulation of tail gas burning, protect
Demonstrate,prove the continuous qualified discharge of tail gas;Reaction-sintered is the valve switch opened on one of regenerator bottom back suction pipe 9, in back suction
The flue gas that blower 8 acts on after decomposing in lower combustion chamber 7 passes through regenerative chamber, and regenerative chamber is made to be warming up to 250 DEG C;Then it closes
The valve switch on regenerator bottom back suction pipe 9 is closed, at this point, the valve on the regenerative chamber tail gas inlet pipe 1, exhaust pipe 2 is turned off,
10min is kept the temperature to regenerative chamber, residual solid impurity in regenerative chamber is melted, finally opens the valve on the regenerative chamber tail gas inlet pipe 1
The solid impurity of heat preservation melting, by regenerative chamber 6, is blown into combustion chambers burn, simultaneously through tail gas inlet pipe 1 by door switch, benzoic anhydride tail-gas
The decline of regenerative chamber temperature, closes the valve switch on the regenerative chamber tail gas inlet pipe after reaching 180 DEG C.
Certainly, above content is only the preferred embodiment of the utility model, be should not be construed as limiting practical new to this
The scope of embodiments of type.The utility model is also not limited to the example above, and those skilled in the art are in this reality
With all the changes and improvements etc. made in novel essential scope, the patent covering scope of the utility model should all be belonged to
It is interior.
Claims (3)
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.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201920120126.0U CN209484627U (en) | 2019-01-23 | 2019-01-23 | Benzoic anhydride tail-gas accumulation of heat incinerator |
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CN201920120126.0U CN209484627U (en) | 2019-01-23 | 2019-01-23 | Benzoic anhydride tail-gas accumulation of heat incinerator |
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CN209484627U true CN209484627U (en) | 2019-10-11 |
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2019
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