CN107543177A - A kind of isophthalodinitrile vent gas treatment incinerator - Google Patents
A kind of isophthalodinitrile vent gas treatment incinerator Download PDFInfo
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- CN107543177A CN107543177A CN201610490116.7A CN201610490116A CN107543177A CN 107543177 A CN107543177 A CN 107543177A CN 201610490116 A CN201610490116 A CN 201610490116A CN 107543177 A CN107543177 A CN 107543177A
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- isophthalodinitrile
- pipeline
- oxidation bed
- bed
- gas treatment
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- LAQPNDIUHRHNCV-UHFFFAOYSA-N isophthalonitrile Chemical compound N#CC1=CC=CC(C#N)=C1 LAQPNDIUHRHNCV-UHFFFAOYSA-N 0.000 title claims abstract description 41
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 88
- 230000003647 oxidation Effects 0.000 claims abstract description 87
- 239000007789 gas Substances 0.000 claims abstract description 73
- 239000003546 flue gas Substances 0.000 claims abstract description 33
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 32
- 238000000605 extraction Methods 0.000 claims abstract description 30
- 238000002485 combustion reaction Methods 0.000 claims abstract description 27
- 238000005338 heat storage Methods 0.000 claims abstract description 17
- 239000000919 ceramic Substances 0.000 claims abstract description 15
- 239000003517 fume Substances 0.000 claims abstract description 15
- 239000000446 fuel Substances 0.000 claims abstract description 10
- 230000002000 scavenging effect Effects 0.000 claims abstract description 9
- 238000010926 purge Methods 0.000 claims description 13
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 6
- 230000008859 change Effects 0.000 claims description 6
- 239000001301 oxygen Substances 0.000 claims description 6
- 229910052760 oxygen Inorganic materials 0.000 claims description 6
- 239000011819 refractory material Substances 0.000 claims description 6
- 239000002918 waste heat Substances 0.000 claims description 4
- 238000003860 storage Methods 0.000 claims description 3
- 235000019504 cigarettes Nutrition 0.000 claims 1
- 239000000284 extract Substances 0.000 claims 1
- XQZYPMVTSDWCCE-UHFFFAOYSA-N phthalonitrile Chemical compound N#CC1=CC=CC=C1C#N XQZYPMVTSDWCCE-UHFFFAOYSA-N 0.000 claims 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract description 12
- 229910021529 ammonia Inorganic materials 0.000 abstract description 6
- 238000006213 oxygenation reaction Methods 0.000 abstract description 4
- 238000009825 accumulation Methods 0.000 description 18
- 230000004087 circulation Effects 0.000 description 18
- 238000006243 chemical reaction Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 8
- 239000002699 waste material Substances 0.000 description 6
- 239000002912 waste gas Substances 0.000 description 5
- 241000264877 Hippospongia communis Species 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- IVSZLXZYQVIEFR-UHFFFAOYSA-N m-xylene Chemical group CC1=CC=CC(C)=C1 IVSZLXZYQVIEFR-UHFFFAOYSA-N 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000012855 volatile organic compound Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Natural products CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- LELOWRISYMNNSU-UHFFFAOYSA-N hydrogen cyanide Chemical compound N#C LELOWRISYMNNSU-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 239000005416 organic matter Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- -1 toluene dimethoxy nitrile Chemical class 0.000 description 2
- 241000282346 Meles meles Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000011038 discontinuous diafiltration by volume reduction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000009970 fire resistant effect Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 230000002631 hypothermal effect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000001473 noxious effect Effects 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 231100000167 toxic agent Toxicity 0.000 description 1
- 239000003440 toxic substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 229910001868 water Inorganic materials 0.000 description 1
Landscapes
- Incineration Of Waste (AREA)
Abstract
The present invention relates to a kind of isophthalodinitrile vent gas treatment incinerator, it is set up in parallel and top is interconnected to form the oxidation bed of combustion chamber including several, support aperture plate, it is arranged on the bottom of oxidation bed, described propping bar is provided with ceramic saddle/rings on the net, heat storage, it is arranged on ceramic saddle/rings, isophthalodinitrile tail gas air inlet pipeline is respectively connected with each oxidation bed, fume extraction pipeline, flue gas outlet pipe, scavenging pipeline, switching valve is respectively provided with above-mentioned pipeline, the fuel conduit and combustion air pipeline being connected with combustion chamber, control valve is respectively provided with above-mentioned pipeline.Compared with prior art, the ammonia of the invention that can make in isophthalodinitrile tail gas and organic exhaust gas oxygenation efficiency are more than 99%.
Description
Technical field
The present invention relates to a kind of exhaust gas processing device, is filled more particularly, to a kind of isophthalodinitrile vent gas treatment with burning
Put.
Background technology
The most important method of synthesis isophthalodinitrile is with meta-xylene under catalyst action, with ammonia, oxygen at present
Gas is obtained by ammoxidation reaction.The fifties Japan Showa electrician develops ammoxidation of m-xylene fixed bed synthesis isophthalic two
Formonitrile HCN production technology, the seventies Mitsubishi gas company and Badger companies of the U.S. have developed finely grained catalyst stream cooperatively
Change bed isophthalodinitrile commercial plant, the level of production of isophthalodinitrile is improved.Ammonia in the exhaust gas composition of the technique
Air volume content 4% or so, VOCs organic matters content 1% or so.
The processing mode of such tail gas is mostly and carried out by the way of incinerator at present, and burning method is at a kind of high temperature pyrolysis
Reason technology, i.e., oxidizing fire reaction, waste are carried out in incinerator with a certain amount of excess air and processed debirs
In harmful and noxious substance aoxidized at a high temperature of 800~1200 DEG C, be pyrolyzed and be destroyed, be one kind can realize simultaneously waste without
Evilization, minimizing, the treatment technology of recycling.The purpose of burning is to destroy waste by fire as far as possible, is that the material being incinerated is changed into nothing
Evil and volume reduction to greatest extent, and reduce new polluter as far as possible and produce, avoid causing secondary pollution.For burning for waste
Burn, can realize simultaneously make waste decrement, thoroughly destroy toxicant in waste by fire and recycle burn caused by used heat this
Three purposes.
Burning method can directly be burned using extra fuel, and the method operating cost is higher need to additionally to supplement fuel；It can also adopt
Burnt (RTO) with regenerative oxidation, liberated heat stores after the method burns the VOCs in tail gas and the gas of other exothermic reactions
Product can reach heat energy recycle and fuel-saving purpose in thermal storage ceramic.Common RTO devices are due to being single table
Or double bed type heat, the defects of certain be present：First, when switching gas flow direction, originally into isophthalodinitrile tail gas
Regenerator immediately becomes the regenerator of discharge purified gas, the not oxidised reaction of gas so between switching valve and reaction compartment
And directly discharged together with purified gas；Secondly, inlet valve and outlet valve start simultaneously in very short time, it is possible to make entrance
Isophthalodinitrile tail gas is directly walked short circuit and discharged together with purified gas.For these reasons, it is possible to occur discharging net
Change gas instantaneously underproof peak value, reduce the averaged oxygen rate of device.There is no blow device so that portion in regenerator
Fail complete oxidation, cause the oxygenation efficiency of tail gas not high.
The content of the invention
It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide a kind of isophthalodinitrile tail
Gas disposal incinerator, a waste gas blowback replacement process is added, special low-temperature flue gas back-flushing technique, had both replaced and has been in
The waste gas of low-temperature zone, ensure that waste gas all aoxidizes by high temperature section；A small amount of, relatively high pressure the pulse of backflow flue gas can be utilized again
Formula blowback, prevent that blocking heat storage is built up in carbon particle absorption caused by the low-temperature oxidation of low melting point dust and organic matter in waste gas
Bee-hole.
The purpose of the present invention can be achieved through the following technical solutions：
A kind of isophthalodinitrile vent gas treatment incinerator, including
It is several to be set up in parallel and top is interconnected to form the oxidation bed of combustion chamber,
Aperture plate is supported, is arranged on the bottom of oxidation bed, described propping bar is provided with ceramic saddle/rings on the net,
Heat storage, it is arranged on ceramic saddle/rings,
With each oxidation bed be respectively connected with isophthalodinitrile tail gas air inlet pipeline, fume extraction pipeline, flue gas outlet pipe,
Scavenging pipeline, switching valve is respectively provided with above-mentioned pipeline,
The fuel conduit and combustion air pipeline being connected with combustion chamber, control valve is respectively provided with above-mentioned pipeline.
Described oxidation bed is at least provided with three.
Also being surrounded outside the component that described oxidation bed connects into has heat insulating refractory material.
Described heat storage is honeycomb ceramic heat accumulator, is divided into high-temperature region and low-temperature space by upper and lower relation, is stayed between two layers
There is gap.
Described isophthalodinitrile tail gas air inlet pipeline, flue gas outlet pipe, scavenging pipeline are connected to the bottom of oxidation bed.
Described fume extraction pipeline is connected to the gap location between the high-temperature region in the middle part of oxidation bed and low-temperature space.
The outlet of described fume extraction pipeline is connected with the waste heat utilization equipment of outside.
The control unit of described switching valve and control valve also through outside is controlled.
Compared with prior art, the present invention has advantages below：
1st, a kind of incinerator for isophthalodinitrile vent gas treatment of the invention uses the structure of multiple oxidation beds,
A purging purification process is added in accumulation of heat and heat release circulation, the oxidation unit of traditional structure is remained in commutation moment and cut
The not oxidised reaction toluene dimethoxy nitrile tail gas changed between valve and reaction compartment is purged to combustion chamber and aoxidized, so as to prevent not aoxidizing
Isophthalodinitrile tail gas be exhausted directly in air, oxygenation efficiency can be improved to more than 99%；
2nd, a kind of incinerator for isophthalodinitrile vent gas treatment of the invention can using backflow flue gas it is a small amount of,
The pulsed blowback of relatively high pressure, prevent carbon particle caused by the low-temperature oxidation of low melting point dust and organic matter in waste gas from adsorbing
Build up the bee-hole for blocking heat storage.
3rd, extraction valve and air inlet switching valve, outlet switching valve link, and ensure that gas flows completely through combustion chamber and high-temperature region and stored
It is extracted again after hot body, ammonia and organic exhaust gas complete oxidation in isophthalodinitrile tail gas can be ensured, improve tail
The oxygenation efficiency of gas；
4th, when using the structure of five and the above, the treating capacity of single of the incinerator of isophthalodinitrile vent gas treatment subtracts
Small, oxidation bed cross-sectional area reduces, and the distribution of oxidation bed interior air-flow is more uniform, and the oxidation unit for avoiding traditional structure is being handled
Internal gas flow uneven situation when measuring larger.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
In figure：1- isophthalodinitrile tail gas air inlet pipeline, 2- extraction valves one, 3- air inlets switching valve one, 4- outlet switching valves
First, 5- blow down valves one, 6- extraction valves two, 7- air inlets switching valve two, 8- outlets switching valve two, 9- blow down valves two, 10- extraction valves
3rd, 11- air inlets switching valve three, 12- outlets switching valve three, 13- fume extractions pipeline, 14- flue gases outlet pipe, 15- scavenging conduits
Road, 16- blow down valves three, 17- support aperture plate, 18- oxidation beds three, 19- heat insulating refractory materials, 20- combustion chambers, 21- oxidation beds two,
22- preheaters, 23- combustion airs valve, 24- fuel valves, 25- fuel conduits, 26- combustion airs pipeline, 27- oxidation beds one, 28-
Control unit, 29- signal wires.
Embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment
A kind of isophthalodinitrile vent gas treatment incinerator, its structure as shown in figure 1, including it is several be set up in parallel and on
Portion is interconnected to form the oxidation bed of combustion chamber, and 3 are provided with the present embodiment, the group by the way of vertical arranged side by side and top connection
It is combined, forms the device body of a vertical structure, also being surrounded outside the component that oxidation bed connects into has heat insulating refractory material
19.The top that all oxidation beds are connected together is collectively forming combustion chamber 20, and the bottom of each oxidation bed is provided with propping bar
Net 17, propping bar are provided with certain thickness ceramic saddle/rings, ceramic honey comb accumulation of heat are stacked with above ceramic saddle/rings on the net
Body, honeycomb ceramic heat accumulator are divided into high-temperature region and low-temperature space according to upper and lower relation, leave gap between two layers, device body it is outer
Portion is provided with the heat insulating refractory material for surrounding device body；Heat insulating refractory material uses thermal insulation fire-resistant material commonly used in the art
Material.
Wherein, isophthalodinitrile tail gas air inlet pipeline 1 is switched by air inlet switching valve 1, air inlet switching valve 27, air inlet
Bottom of the valve 3 11 respectively with oxidation bed 1, oxidation bed 2 21, oxidation bed 3 18 is connected；Flue gas outlet pipe 14 is by going out
Gas switching valve 1, outlet switching valve 28, outlet switching valve 3 12 respectively with oxidation bed 1, oxidation bed 2 21, oxidation bed three
18 bottom is connected；Scavenging pipeline 15 by blow down valve 1, blow down valve 29, blow down valve 3 16 respectively with oxidation bed 1,
Oxidation bed 2 21, the bottom of oxidation bed 3 18 are connected；Isophthalodinitrile tail gas by isophthalodinitrile tail gas air inlet pipeline 1,
Air inlet switching valve enters each oxidation bed, and the flue gas after oxidation is discharged by outlet switching valve from flue gas outlet pipe 14.Scavenging conduit
Road 15 is connected by blow down valve with oxidation bed, and scavenging pipeline 15 introduces a small amount of flue gas and enters oxidation bed, by the moment non-oxygen that commutates
The isophthalodinitrile tail gas of change blows into combustion chamber, by ammonia in isophthalodinitrile tail gas and organic exhaust gas complete oxidation.
And fume extraction pipeline 13 by extraction valve 1, extraction valve 26, extraction valve 3 10 respectively with oxidation bed 1, oxygen
Change bed 2 21, the middle part of oxidation bed 3 18 are connected, between being specifically connected between the high-temperature region of oxidation bed and hypothermic phase
Gap space, from extracting high-temperature flue gas between oxidation bed high-temperature region and low-temperature space, waste heat is both extracted, and can ensures high-temperature region
Heat storage stores ammonia and VOCs aoxidizes required temperature and amount of stored heat, improves the operation stability of oxidation unit；Combustion-supporting sky
Air pipe 26 is connected to preheater 22 by combustion air valve 23, fuel conduit 25 by fuel valve 24, and the preheater is set
In in combustion chamber.Extraction valve 1, air inlet switching valve 1, outlet switching valve 1, blow down valve 1, extraction valve 26, air inlet switching
Valve 27, outlet switching valve 28, blow down valve 29, extraction valve 3 10, air inlet switching valve 3 11, outlet switching valve 3 12, blow down valve
3 16, combustion air valve 23, fuel valve 24 are connected by signal wire 29 with control unit 28 respectively.With three bed isophthalodinitriles
Exemplified by the incinerator of vent gas treatment, its course of work is：First, produced in startup stage by preheater combustion oil or fuel gas
High-temperature flue gas, high-temperature flue gas heat each oxidation bed, and oxidation bed forms the low temperature field of relative superiority or inferiority, wherein high-temperature region thermal storage ceramic
Temperature reaches 800~1000 DEG C, is then turned off preheater.After the completion of preheating, device enters normal operating conditions.One complete
Work period is made up of three circulations.
Circulation one：Air inlet switching valve one, outlet switching valve two, blow down valve three, extraction valve two are in opening, air inlet
Switching valve two, air inlet switching valve three, outlet switching valve one, outlet switching valve three, blow down valve one, secondary sweep valve two, extraction valve one, take out
Air valve three is closed.Isophthalodinitrile tail gas is by air inlet pipe, air inlet switching valve one, support aperture plate, from oxidation bed bottom
Portion enters oxidation bed one, is heated during being flowed up in oxidation bed by honeycomb ceramic heat accumulator, temperature gradually rises.Isophthalic
Oxidation reaction generation carbon dioxide, water, nitrogen and a small amount of oxynitrides occur in combustion chamber for dimethoxy nitrile tail gas, release simultaneously
Heat, the flue-gas temperature rise generated after oxidation.Then flue gas continues to flow, and is flowed downward from oxidation bed two, the same high temperature of flue gas
Area's heat storage carries out heat exchange, and flue gas own temperature is reduced, and high-temperature region heat storage is heated, and hereafter flue gas is divided into two-way：One
Dividing flue gas to continue to flow downward in oxidation bed two, heat exchange is carried out with low-temperature space heat storage, flue gas own temperature continues to reduce,
Low-temperature space heat storage is heated, and last flue gas flows out from the bottom of oxidation bed two, through supporting aperture plate, outlet switching valve two, flue gas to go out
Tracheae is discharged；Another part flue gas is utilized through extraction valve two, fume extraction Pipeline transport to waste heat utilization equipment.Meanwhile
Scavenging pipeline introducing portion flue gas flows into, to the residual in oxidation bed three through blow down valve three, support aperture plate from the bottom of oxidation bed three
Gas is purged, and gas flows out after being aoxidized in combustion chamber through peroxidating bed two.In this circulation, heat storage in oxidation bed one
Heat release, heat storage accumulation of heat in oxidation bed two, residue gas is purged in oxidation bed three.
Circulation two：Air inlet switching valve two, outlet switching valve three, blow down valve one, extraction valve three are in opening, air inlet
Switching valve one, air inlet switching valve three, outlet switching valve one, outlet switching valve two, blow down valve two, secondary sweep valve three, extraction valve one, take out
Air valve two is closed.Isophthalodinitrile tail gas enters oxidation bed two, combustion chamber is entered after being preheated, flue gas enters after reaction
Enter oxidation bed three, discharged after partial fume is cooled, partial fume is through extraction valve three, fume extraction Pipeline transport to UTILIZATION OF VESIDUAL HEAT IN
Equipment is utilized.Now oxidation bed one is purged with flue gas, and the gas after purging is after combustion chamber is reacted together with flue gas
Discharged by oxidation bed three.In this circulation, residue gas is purged in oxidation bed one, heat storage heat release in oxidation two,
Heat storage accumulation of heat in oxidation bed three.
Circulation three：Air inlet switching valve three, outlet switching valve one, blow down valve two, extraction valve one are in opening, air inlet
Switching valve one, air inlet switching valve two, outlet switching valve two, outlet switching valve three, blow down valve one, secondary sweep valve three, extraction valve two, take out
Air valve three is closed.Isophthalodinitrile tail gas enters oxidation bed three, combustion chamber is entered after being preheated, flue gas enters after reaction
Enter oxidation bed one, discharged after partial fume is cooled, partial fume is through extraction valve one, fume extraction Pipeline transport to UTILIZATION OF VESIDUAL HEAT IN
Equipment is utilized.Now oxidation bed two is purged with flue gas, and the gas after purging is after combustion chamber is reacted together with flue gas
Discharged by oxidation bed one.In this circulation, heat storage accumulation of heat in oxidation bed one, oxidation bed two is interior to be blown residue gas
Sweep, heat storage heat release in oxidation three.
After circulation three terminates, circulation one is returned, goes round and begins again and continuously runs.Control unit sets control each according to system
The opening and closing of valve.The incinerator course of work that three bed are used for isophthalodinitrile vent gas treatment is briefly expressed as follows：
| Oxidation bed one | Oxidation bed two | Oxidation bed three | |
| Circulation one | Heat release | Accumulation of heat | Purging |
| Circulation two | Purging | Heat release | Accumulation of heat |
| Circulation three | Accumulation of heat | Purging | Heat release |
The incinerator that three bed are used for isophthalodinitrile vent gas treatment arrives medium exhaust flow suitable for small.When tail gas amount
When very big, five bed tail gas incinerators should be used, i.e. two two parallel connections are used to purge plus one.Equally, treating capacity is worked as
When bigger, seven Room or nine Room can be used.Analogized with the above-mentioned three bed device course of work, five bed are used at isophthalodinitrile tail gas
The incinerator course of work of reason can be expressed as below：
| Oxidation bed one | Oxidation bed two | Oxidation bed three | Oxidation bed four | Oxidation bed five | |
| Circulation one | Accumulation of heat | Accumulation of heat | Heat release | Heat release | Purging |
| Circulation two | Purging | Accumulation of heat | Accumulation of heat | Heat release | Heat release |
| Circulation three | Heat release | Purging | Accumulation of heat | Accumulation of heat | Heat release |
| Circulation four | Heat release | Heat release | Purging | Accumulation of heat | Accumulation of heat |
| Circulation five | Accumulation of heat | Heat release | Heat release | Purging | Accumulation of heat |
Finally illustrate, the above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted, although with reference to compared with
The present invention is described in detail good embodiment, it will be understood by those within the art that, can be to the skill of the present invention
Art scheme is modified or equivalent substitution, and without departing from the objective and scope of the technical program, it all should cover in the present invention
Right among.
Claims (8)
1. a kind of isophthalodinitrile vent gas treatment incinerator, it is characterised in that the device includes
It is several to be set up in parallel and top is interconnected to form the oxidation bed of combustion chamber,
Aperture plate is supported, is arranged on the bottom of oxidation bed, described propping bar is provided with ceramic saddle/rings on the net,
Heat storage, it is arranged on ceramic saddle/rings,
Isophthalodinitrile tail gas air inlet pipeline, fume extraction pipeline, flue gas outlet pipe, purging are respectively connected with each oxidation bed
Pipeline, switching valve is respectively provided with above-mentioned pipeline,
The fuel conduit and combustion air pipeline being connected with combustion chamber, control valve is respectively provided with above-mentioned pipeline.
A kind of 2. isophthalodinitrile vent gas treatment incinerator according to claim 1, it is characterised in that described oxygen
Change bed at least provided with three.
A kind of 3. isophthalodinitrile vent gas treatment incinerator according to claim 1, it is characterised in that described oxygen
Change also to surround outside the component that bed connects into and have heat insulating refractory material.
A kind of 4. isophthalodinitrile vent gas treatment incinerator according to claim 1, it is characterised in that described storage
Hot body is honeycomb ceramic heat accumulator, is divided into high-temperature region and low-temperature space by upper and lower relation, gap is left between two layers.
5. a kind of isophthalodinitrile vent gas treatment incinerator according to claim 1, it is characterised in that between described
Benzene dicarbonitrile tail gas air inlet pipeline, flue gas outlet pipe, scavenging pipeline are connected to the bottom of oxidation bed.
A kind of 6. isophthalodinitrile vent gas treatment incinerator according to claim 4, it is characterised in that described cigarette
Gas extracts the gap location that pipeline is connected between the high-temperature region in the middle part of oxidation bed and low-temperature space.
7. a kind of isophthalodinitrile vent gas treatment incinerator according to claim 1 or 6, it is characterised in that described
The outlet of fume extraction pipeline be connected with outside waste heat utilization equipment.
8. a kind of isophthalodinitrile vent gas treatment incinerator according to claim 1, it is characterised in that described cuts
The control unit of valve and control valve also through outside is changed to be controlled.
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| CN201610490116.7A CN107543177A (en) | 2016-06-28 | 2016-06-28 | A kind of isophthalodinitrile vent gas treatment incinerator |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610490116.7A CN107543177A (en) | 2016-06-28 | 2016-06-28 | A kind of isophthalodinitrile vent gas treatment incinerator |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108518695A (en) * | 2018-04-10 | 2018-09-11 | 江苏大信环境科技有限公司 | A kind of online coke removing appts and decoking for heat storage |
| CN109059010A (en) * | 2018-06-13 | 2018-12-21 | 重庆大学 | A kind of low concentration gas oxidation heat utilization device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101491747A (en) * | 2008-12-10 | 2009-07-29 | 上海泰禾(集团)有限公司 | Method for processing waste gas generated in isophthalonitrile production process |
| CN102720527A (en) * | 2012-06-28 | 2012-10-10 | 中煤科工集团重庆研究院 | Multi-bed type ventilation air methane regenerative thermal oxidation device |
-
2016
- 2016-06-28 CN CN201610490116.7A patent/CN107543177A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101491747A (en) * | 2008-12-10 | 2009-07-29 | 上海泰禾(集团)有限公司 | Method for processing waste gas generated in isophthalonitrile production process |
| CN102720527A (en) * | 2012-06-28 | 2012-10-10 | 中煤科工集团重庆研究院 | Multi-bed type ventilation air methane regenerative thermal oxidation device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108518695A (en) * | 2018-04-10 | 2018-09-11 | 江苏大信环境科技有限公司 | A kind of online coke removing appts and decoking for heat storage |
| CN109059010A (en) * | 2018-06-13 | 2018-12-21 | 重庆大学 | A kind of low concentration gas oxidation heat utilization device |
| CN109059010B (en) * | 2018-06-13 | 2020-03-24 | 重庆大学 | Low-concentration gas oxidation heat utilization device |
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