CN207123165U - A kind of can-type calcine furnace flue gas recycle combustion system - Google Patents
A kind of can-type calcine furnace flue gas recycle combustion system Download PDFInfo
- Publication number
- CN207123165U CN207123165U CN201721034551.5U CN201721034551U CN207123165U CN 207123165 U CN207123165 U CN 207123165U CN 201721034551 U CN201721034551 U CN 201721034551U CN 207123165 U CN207123165 U CN 207123165U
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- China
- Prior art keywords
- oxygen
- flue gas
- air
- valve
- calcining furnace
- Prior art date
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- Expired - Fee Related
Links
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 55
- 239000003546 flue gas Substances 0.000 title claims abstract description 55
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 14
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 80
- 239000001301 oxygen Substances 0.000 claims abstract description 80
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 80
- 238000005259 measurement Methods 0.000 claims abstract description 34
- 238000001354 calcination Methods 0.000 claims abstract description 28
- 239000002918 waste heat Substances 0.000 claims abstract description 18
- 230000001105 regulatory effect Effects 0.000 claims abstract description 13
- 239000000779 smoke Substances 0.000 claims abstract description 13
- 239000000428 dust Substances 0.000 claims abstract description 9
- 230000005611 electricity Effects 0.000 claims abstract description 6
- 238000010521 absorption reaction Methods 0.000 claims description 3
- 239000003570 air Substances 0.000 claims 1
- 239000003517 fume Substances 0.000 abstract description 4
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 7
- 235000019504 cigarettes Nutrition 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 239000007789 gas Substances 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000013618 particulate matter Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000036284 oxygen consumption Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
Classifications
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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- Combustion Of Fluid Fuel (AREA)
Abstract
A kind of can-type calcine furnace flue gas recycle combustion system.Flue gas is discharged into the waste heat boiler being connected with calcining furnace from calcining furnace, enter circulating fan or smoke exhaust fan by the flue gas of waste heat boiler, oxygen or air feeder are provided with before or after circulating fan, regulating valve is provided between oxygen or air feeder and circulating fan, oxygen or air are together with flue gas by being again introduced into after dust arrester and oxygen measurement set in calcining furnace, the oxygen measurement set and regulating valve with controller Electricity Federation, and oxygen measurement set measurement feedback is to controller, controller controls to adjust the on/off of valve and the opening degree size of regulating valve by the measurement result of oxygen measurement set.By using the superfluous oxygen in flue gas, the amount of flue gas emission that calcining furnace discharges can be not only reduced, reduces the power consumption of smoke exhaust fan, improve the concentration of harmful components, it is a large amount of to reduce fume emission total amount also using the waste heat in flue gas, reduce the occupation of land and investment of discharge pipe, environmental protection facility.
Description
Technical field
Calcining furnace technical field is the utility model is related to, more particularly to a kind of can-type calcine furnace flue gas recycle combustion system.
Background technology
Can-type calcine furnace is the raw material calciner of carbonaceous product.For Conventional calcination stove combustion system, the cigarette of calcining furnace
Temperature degree is higher, contains SOx, NOx, particulate matter etc..Flue-gas temperature after UTILIZATION OF VESIDUAL HEAT IN is higher, there are about more than 180 DEG C,
And the oxygen not run out of containing substantial amounts of combustion process in the flue gas given off after combustion, generally 12-16%.Due to cigarette
The presence of excessive oxygen, causes smoke discharge amount to roll up in gas, adds the power of blower fan needed for fume emission, increases
Follow-up flue gas desulfurization, the treating capacity of denitration process are added.Substantial amounts of heat is carried in other flue gas, adds the energy of carbonaceous product
Source consumes and cost.
Utility model content
To overcome problems of the prior art, the utility model provides a kind of can-type calcine furnace flue gas recycle combustion
System.
The technical scheme in the invention for solving the technical problem is:This kind of can-type calcine furnace flue gas recycle combustion
System, including calcining furnace, flue gas are discharged into the waste heat boiler being connected with calcining furnace from calcining furnace, and the flue gas through waste heat boiler enters
Enter circulating fan or smoke exhaust fan, oxygen or air feeder, oxygen or air supply are provided with before or after circulating fan
Device is provided with regulating valve, oxygen or air together with flue gas by being again introduced into after dust arrester and oxygen measurement set in calcining furnace
Participate in burning, the oxygen measurement set and regulating valve are with controller Electricity Federation, and oxygen measurement set measurement feedback is to controlling
Device, controller control to adjust the on/off of valve and the opening degree size of regulating valve by the measurement result of oxygen measurement set.
Further, the oxygen or air capacity that the oxygen measurement set measurement is passed through, cigarette is circulated when being passed through amount of oxygen merely
Oxygen content in gas can be higher than 21%, and the content of oxygen is less than 21% in circulating flue gas when being passed through air, and oxygen and air are same
When being passed through, the oxygen content in flue gas is controlled by the oxygen that is passed through, the ratio of air capacity.
Further, the dust arrester includes shell, and dismountable absorption filter element is provided with shell.
Further, be equipped with control valve between the waste heat boiler and circulating fan and smoke exhaust fan, and waste heat boiler with
It is automatically controlled normally open valve between circulating fan, waste heat boiler is automatically controlled normally close valve, normally open valve and normally close valve and control with smoke exhaust fan
Device Electricity Federation processed, controller control the on/off of normally open valve and normally close valve by the measurement result of oxygen measurement set.
To sum up, above-mentioned technical proposal of the present utility model has the beneficial effect that:
The flue gas with heat and a large amount of oxygen is recycled back into calcining furnace by circulating fan to be burnt.By in flue gas
Oxygen replenishment is burnt to close to 21% or higher by the method polishing that oxygen (or air, oxygen+air) is injected into flue gas
Preceding air occupancy volume so that not sufficiently combusted oxygen position, which is turned again in calcining furnace, in flue gas burns, and ensures filling for burning
Point.The amount of flue gas emission of calcining furnace discharge can be not only reduced, the power consumption of smoke exhaust fan is reduced, improves the dense of harmful components
Degree, created conditions for the removal of follow-up nuisance, it is a large amount of to reduce also using the waste heat in the superfluous oxygen and flue gas in flue gas
The occupation of land and investment of fume emission total amount, discharge pipe, environmental protection facility.After flue gas qualified discharge, pollutant can be largely reduced
Total emission volumn.
By detecting the oxygen content in circulating air, the regulation of injection oxygen (or air, oxygen+air) is automatically adjusted
Valve, it is ensured that the burning process of calcining is constant, without doing extra investment and improvement for change burning process.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the A-A sectional views of the utility model dust arrester.
In figure:
1st, calcining furnace, 2, waste heat boiler, 3, circulating fan, 4, dust arrester, 5, oxygen measurement set, 6, regulating valve, 7, row
Cigarette blower fan, 8, shell, 9, filter core, 10, oxygen or air feeder.
Embodiment
Feature of the present utility model and principle are described in detail below in conjunction with accompanying drawing, illustrated embodiment is only used for explaining
The utility model, the scope of protection of the utility model is not limited with this.
As shown in figure 1, the utility model includes calcining furnace 1, more than flue gas is discharged into from calcining furnace 1 and is connected with calcining furnace
Heat boiler 2.Flue gas through waste heat boiler 2 enters circulating fan 3 or smoke exhaust fan 7, after circulating fan 3 unnecessary flue gas by
Smoke exhaust fan 7 is discharged.
Oxygen or air feeder 10 are provided between waste heat boiler and circulating fan, oxygen or air feeder 10 are with following
Regulating valve 6, oxygen or air are provided between ring blower fan 3 together with flue gas by being again introduced into after dust arrester 4 and oxygen measurement set 5
In calcining furnace 1, the oxygen measurement set 5 and regulating valve 6 are with controller Electricity Federation, and the measurement feedback of oxygen measurement set 5 is extremely
Controller, controller control to adjust the on/off of valve 6 and the opening degree of regulating valve by the measurement result of oxygen measurement set 5
Size.When oxygen measurement set 5 measures in flue gas oxygen content not in setting range (such as 19-20%), such as during 12-16%,
Oxygen (or air) feedway is needed to supply oxygen (or air) to system, the size of quantity delivered is 19-20% and oxygen measurement set 5
Measure the difference of numerical value.
Oxygen content when being passed through oxygen in flue gas can be more than 21%, and oxygen content when being passed through air in flue gas is less than
21%.Can also oxygen and air be passed through simultaneously, control the oxygen in flue gas to contain by the oxygen that is passed through, the ratio of air capacity
Amount.
As shown in Fig. 2 dust arrester 4 includes shell 8, dismountable absorption filter element 9 is installed in shell 8.In circulated air
Dust arrester is installed, to reduce influence of the particulate matter to waste heat boiler 2 in flue gas after machine.
This is new to be recycled back to calcining furnace by circulating fan by the flue gas with heat and a large amount of oxygen and is burnt.By cigarette
Oxygen replenishment in gas is mended to close to 21% or higher by the method that oxygen (or air, oxygen+air) is injected into flue gas
Oxygen consumption in neat combustion process so that not sufficiently combusted oxygen, which is turned again in calcining furnace, in flue gas burns, and ensures
What is burnt is abundant.By using the superfluous oxygen in flue gas, the amount of flue gas emission of calcining furnace discharge can be not only reduced, reduces smoke evacuation
The power consumption of blower fan, the concentration of harmful components is improved, created favorable conditions for the removal of follow-up nuisance, also using flue gas
In waste heat, it is a large amount of to reduce fume emission total amounts, reduce the occupation of land and investment of discharge pipe, environmental protection facility.Flue gas qualified discharge
Afterwards, the total emission volumn of pollutant can largely be reduced.
By detecting the oxygen content in circulating air, the regulation of injection oxygen (or air, oxygen+air) is automatically adjusted
Valve, it is ensured that the burning process of calcining is constant, without doing extra investment and improvement for change burning process.
Above-described embodiment is only the description carried out to preferred embodiment of the present utility model, not to the model of the present invention
Enclose and be defined, on the premise of the utility model design spirit is not departed from, relevant technical staff in the field is to the utility model
Various modifications and improvement, all should expand determined by the utility model claims book in protection domain.
Claims (4)
- A kind of 1. can-type calcine furnace flue gas recycle combustion system, it is characterised in that including calcining furnace, flue gas from calcining furnace discharge into Enter the waste heat boiler being connected with calcining furnace, the flue gas through waste heat boiler enters circulating fan or smoke exhaust fan, before circulating fan Or oxygen or air feeder are provided with afterwards, oxygen or air feeder are provided with regulating valve, oxygen or air and flue gas one Rise and participate in burning by being again introduced into after dust arrester and oxygen measurement set in calcining furnace, the oxygen measurement set and regulating valve are equal With controller Electricity Federation, and the measurement result that oxygen measurement set measurement feedback passes through oxygen measurement set to controller, controller Control to adjust the on/off of valve and the opening degree size of regulating valve.
- 2. a kind of can-type calcine furnace flue gas recycle combustion system according to claim 1, it is characterised in that the oxygen is surveyed The oxygen or air capacity that amount instrument measurement is passed through, oxygen content when being passed through amount of oxygen merely in circulating flue gas can be higher than 21%, lead to The content of oxygen is less than 21% in circulating flue gas when entering air, oxygen and air are passed through simultaneously when, passes through oxygen, the air being passed through Oxygen content in the ratio control flue gas of amount.
- A kind of 3. can-type calcine furnace flue gas recycle combustion system according to claim 1, it is characterised in that the dedusting dress Put including shell, dismountable absorption filter element is installed in shell.
- A kind of 4. can-type calcine furnace flue gas recycle combustion system according to claim 1, it is characterised in that the waste heat pot Control valve is equipped between stove and circulating fan and smoke exhaust fan, and is automatically controlled normally open valve between waste heat boiler and circulating fan, it is remaining Heat boiler is automatically controlled normally close valve with smoke exhaust fan, and normally open valve passes through oxygen measurement with normally close valve and controller Electricity Federation, controller The measurement result control normally open valve of instrument and the on/off of normally close valve.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201721034551.5U CN207123165U (en) | 2017-08-17 | 2017-08-17 | A kind of can-type calcine furnace flue gas recycle combustion system |
Applications Claiming Priority (1)
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CN201721034551.5U CN207123165U (en) | 2017-08-17 | 2017-08-17 | A kind of can-type calcine furnace flue gas recycle combustion system |
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CN207123165U true CN207123165U (en) | 2018-03-20 |
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CN201721034551.5U Expired - Fee Related CN207123165U (en) | 2017-08-17 | 2017-08-17 | A kind of can-type calcine furnace flue gas recycle combustion system |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109028929A (en) * | 2018-06-29 | 2018-12-18 | 攀钢集团研究院有限公司 | Expansion drying afterheat recycling system in titanium white production |
CN109059541A (en) * | 2018-09-18 | 2018-12-21 | 索通齐力炭材料有限公司 | Can-type calcine furnace system |
CN116576683A (en) * | 2023-05-15 | 2023-08-11 | 广东维正环保机电工程有限公司 | Environment-friendly energy-saving system for graphite production |
-
2017
- 2017-08-17 CN CN201721034551.5U patent/CN207123165U/en not_active Expired - Fee Related
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109028929A (en) * | 2018-06-29 | 2018-12-18 | 攀钢集团研究院有限公司 | Expansion drying afterheat recycling system in titanium white production |
CN109059541A (en) * | 2018-09-18 | 2018-12-21 | 索通齐力炭材料有限公司 | Can-type calcine furnace system |
CN109059541B (en) * | 2018-09-18 | 2024-02-02 | 索通齐力炭材料有限公司 | Tank calciner system |
CN116576683A (en) * | 2023-05-15 | 2023-08-11 | 广东维正环保机电工程有限公司 | Environment-friendly energy-saving system for graphite production |
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GR01 | Patent grant | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180320 |
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CF01 | Termination of patent right due to non-payment of annual fee |