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 PDF

Info

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
Authority
CN
China
Prior art keywords
oxygen
flue gas
air
valve
calcining furnace
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201721034551.5U
Other languages
Chinese (zh)
Inventor
王野铧
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN201721034551.5U priority Critical patent/CN207123165U/en
Application granted granted Critical
Publication of CN207123165U publication Critical patent/CN207123165U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00Technologies related to metal processing
    • Y02P10/25Process efficiency

Landscapes

  • 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

A kind of can-type calcine furnace flue gas recycle combustion system
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)

  1. 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. 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.
  3. 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.
  4. 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.
CN201721034551.5U 2017-08-17 2017-08-17 A kind of can-type calcine furnace flue gas recycle combustion system Expired - Fee Related CN207123165U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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)

Application Number Priority Date Filing Date Title
CN201721034551.5U CN207123165U (en) 2017-08-17 2017-08-17 A kind of can-type calcine furnace flue gas recycle combustion system

Publications (1)

Publication Number Publication Date
CN207123165U true CN207123165U (en) 2018-03-20

Family

ID=61610624

Family Applications (1)

Application Number Title Priority Date Filing Date
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

Country Status (1)

Country Link
CN (1) CN207123165U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
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

Cited By (4)

* Cited by examiner, † Cited by third party
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

Similar Documents

Publication Publication Date Title
CN207123165U (en) A kind of can-type calcine furnace flue gas recycle combustion system
CN102016418B (en) Method of controlling oxygen supply in oxygen combustion boiler and apparatus therefor
CN105080315B (en) For the flue gas denitrification system of dry-process cement rotary kiln
CN106247368A (en) A kind of industrial coal powder boiler flue gas recirculation low nitrogen burning method and system
CN106352325B (en) A kind of multiplex control system of grate furnace nitrogen oxide emission
CN209702593U (en) A kind of limekiln hot air circulating system
CN105091615A (en) Comprehensive treatment method for iron ore sintering smoke pollutants
CN109721259B (en) Lime kiln hot air circulation system
CN109114588A (en) It is pure to fire high-alkali coal wet bottom boiler low NOx combustion system and method for controlling combustion
CN104548932A (en) Fume temperature coordination type wide load denitrification system
CN108302521A (en) A kind of low NOx circulating fluidized bed boiler of denitration and denitration low NOx drainage control technique
EP3018410B1 (en) Plant and method for reducing bitumen fumes
CN104132358A (en) Coal-fired power plant boiler system suitable for low-load operation and combustion adjusting method of boiler system
CN109489033A (en) The low nitrogen processing method of biogas combustion tail gas and burner apparatus
CN106224948A (en) A kind of self adaptation CFBB control method
CN203454139U (en) Burner with automatic air volume control function
CN103453526A (en) Combustor with automatic air quantity control function
CN210602852U (en) Low-nitrogen combustion equipment for aluminum kiln
CN205859997U (en) A kind of vent pulverized coal handling system
CN205261541U (en) Low NOx gas combustion ware of adjustable isolation flame
CN105371670B (en) A kind of Industrial Stoves polyoxy combustion product gases reduction reuse means and its operation method
CN211864383U (en) Sintering flue gas circulation combined full pollutant treatment device
CN104338434A (en) Load-variable adjustable circulating fluidized bed desulfurizing method
CN211120612U (en) Low-nitrogen combustion system of tunnel furnace
CN107420883B (en) A kind of carbon industry exhausted air quantity and pollutant become Zero discharging system and method

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20180320

CF01 Termination of patent right due to non-payment of annual fee