CN202558879U - Electric furnace flue gas waste heat recovery device - Google Patents

Electric furnace flue gas waste heat recovery device Download PDF

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Publication number
CN202558879U
CN202558879U CN2012202027819U CN201220202781U CN202558879U CN 202558879 U CN202558879 U CN 202558879U CN 2012202027819 U CN2012202027819 U CN 2012202027819U CN 201220202781 U CN201220202781 U CN 201220202781U CN 202558879 U CN202558879 U CN 202558879U
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China
Prior art keywords
flue gas
electric furnace
waste heat
heat recovery
chamber
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CN2012202027819U
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Chinese (zh)
Inventor
侯祥松
张茂
姜小萍
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CISDI Engineering Co Ltd
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CISDI Engineering Co Ltd
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Priority to CN2012202027819U priority Critical patent/CN202558879U/en
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    • 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
    • Y02P10/20Recycling
    • 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

Abstract

The utility model discloses an electric furnace flue gas waste heat recovery device which comprises an inlet flue and an outlet flue. The electric furnace flue gas waste heat recovery device is characterized by comprising a flue gas processing cavity, wherein a combustion chamber is installed on one portion of the flue gas processing cavity and close to the inlet flue, and a cooling cavity is installed on another portion of the flue gas processing cavity and close to the outlet flue. An evaporator or/and a coal economizer are installed inside the cooling cavity, and a spiral ash conveying device is installed at the bottom of the cooling cavity. The electric furnace flue gas waste heat recovery device integrates combustion, sedimentation and waste heat recovery of electric furnace flue gas, and a connecting flue is eliminated. Three functions of sedimentation dust removing, burnout of combustible components, and heat exchange of the electric furnace flue gas are completed inside the electric furnace flue gas waste heat recovery device, and the flue gas is cooled under the temperature of 250 DEG C to fully recover waste heat of the electric furnace flue gas. Meanwhile, the spiral ash conveying device is adopted to convey ashes automatically, and therefore workload of ash removal operation of a combustion sedimentation chamber is reduced.

Description

A kind of electric furnace fume residual heat recycle device
Technical field
The utility model relates to a kind of flue gas waste heat recovery apparatus.
Background technology
During Electric furnace steel making; Electric furnace (the 4th hole) flue gas has the advantages that flow is big, temperature is high, dustiness is big, contain combustiblecomponents (mainly being CO), and the electric furnace flue gas residual neat recovering system mainly is made up of combustion settling chamber (mainly acting as the after-flame of combustiblecomponents, the sedimentation of flue dust), connection flue and waste heat boiler etc. at present.Combustion settling chamber and waste heat boiler are two independent structures, and wherein waste heat boiler is usually placed in outside the workshop, difficult arrangement, owing to receive flue gas cyclical heat stress influence, the each several part life-span is shorter simultaneously.And combustion settling chamber generally adopts artificial deashing or uses the forklift deashing, and labor condition is abominable, and workload is big.
The utility model content
The purpose of the utility model provides that a kind of to collect burning, flue dust sedimentation and waste heat recovery be the electric furnace fume residual heat recycle device of one.
To achieve these goals; Adopt following technical scheme: a kind of electric furnace fume residual heat recycle device; Comprise gas approach and exhaust pass, it is characterized in that: said device comprises the flue gas treating chamber, and wherein the flue gas treating chamber is a burning chamber near the part of gas approach; Part near exhaust pass is a cooling chamber, is provided with vaporizer and/or economizer in the cooling chamber.
In order can the flue dust that settle down to be discharged automatically, the bottom of said cooling chamber is provided with the spiral ash conveying device.
In order to optimize effect of settling, be provided with the interceptor of staggered arrangement between said burning chamber and the cooling chamber to flue dust.
For the after-flame that guarantees combustiblecomponents such as CO with, guarantee the safety of this device, said flue gas treating chamber is provided with explosive door and/or mixer selector valve.
Collect flue dust for ease, the lower section of said flue gas treating chamber is up big and down small structure.
In order to absorb the stress that flue expands with heat and contract with cold and caused, said gas approach is provided with loop expansion pipe.
The integrated electric furnace flue gas burning of the utility model, sedimentation and waste heat recovery are one, have cancelled the connection flue, in this device, accomplish the sedimentation dedusting of electric furnace flue gas, after-flame and three functions of heat exchange of combustiblecomponents, and flue gas is cooled to 250 oFully reclaim the waste heat of electric furnace flue gas below the C.Adopt the defeated automatically ash of spiral ash machine simultaneously, reduced the deashing operation of combustion settling chamber.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the sectional view of A-A among Fig. 1.
Among the figure, 1 is gas approach, and 2 is loop expansion pipe, and 3 is burning chamber, and 4 is bearing, and 5 is interceptor, and 6 is vaporizer, and 7 is the spiral ash conveying device, and 8 is exhaust pass, and 9 is economizer, and 10 is explosive door, and 11 is mixer selector valve, and 12 is moving sliding sleeve.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment the utility model is done and to be further described.
As shown in Figure 1, this device supports with bearing 4, and when utilizing this apparatus processes electric furnace flue gas, electric furnace flue gas gets into burning chamber 3 through gas approach 1.Wherein gas approach 1 is provided with the stress that loop expansion pipe 2 absorption flues expand with heat and contract with cold and cause.But also can be provided with the moving sliding sleeve 12 of move left and right on the gas approach 1; Moving sliding sleeve is a conical structure; Can mix the wind area through the distance control of regulating with electric furnace the 4th hole through moving of stopper, thereby control and electric furnace flue gas blended air capacity further mix, burn after the combustiblesubstance in the flue gas and the air mixed in burning chamber 3; And flue dust is deposited to bottom through gravity settling, through 7 outputs of spiral ash conveying device.Arrange two interceptors 5 in this device, can promote the deposition of flue dust and the distribution of flue gas flow field.Flue gas flows through vaporizer 6 successively and is cooled with economizer 9, and discharges through exhaust pass 8, is connected with dust removal installation.Flue gas flow with water coolant heating recovery heat, produces steam when vaporizer 6 and economizer 9.This device is gone up the mixer selector valve 11 that is provided with, the after-flame of combustiblecomponentss such as assurance CO, and as the subsequent use measure of adjusting flue-gas temperature.Be provided with explosive door 10 on this device, pressure release when the CO detonation guarantees the safety of this device.This device is realized the cooling to electric furnace flue gas in the workshop, the flue gas of discharging from this device can directly mix the back dedusting with the flue gas of final dusting.

Claims (7)

1. electric furnace fume residual heat recycle device; Comprise gas approach and exhaust pass; It is characterized in that: said device comprises the flue gas treating chamber; Wherein the flue gas treating chamber is a burning chamber near the part of gas approach, is cooling chamber near the part of exhaust pass, is provided with vaporizer and/or economizer in the cooling chamber.
2. electric furnace fume residual heat recycle device as claimed in claim 1 is characterized in that: the bottom of said cooling chamber is provided with the spiral ash conveying device.
3. according to claim 1 or claim 2 electric furnace fume residual heat recycle device is characterized in that: the interceptor that is provided with staggered arrangement between said burning chamber and the cooling chamber.
4. electric furnace fume residual heat recycle device as claimed in claim 1 is characterized in that: said flue gas treating chamber is provided with explosive door and/or mixer selector valve.
5. electric furnace fume residual heat recycle device as claimed in claim 1 is characterized in that: the lower section of said flue gas treating chamber is up big and down small structure.
6. electric furnace fume residual heat recycle device as claimed in claim 1 is characterized in that: said gas approach is provided with loop expansion pipe.
7. electric furnace fume residual heat recycle device as claimed in claim 1 is characterized in that: the ingress of said gas approach is provided with the moving sliding sleeve of control inlet size.
CN2012202027819U 2012-05-08 2012-05-08 Electric furnace flue gas waste heat recovery device Active CN202558879U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012202027819U CN202558879U (en) 2012-05-08 2012-05-08 Electric furnace flue gas waste heat recovery device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012202027819U CN202558879U (en) 2012-05-08 2012-05-08 Electric furnace flue gas waste heat recovery device

Publications (1)

Publication Number Publication Date
CN202558879U true CN202558879U (en) 2012-11-28

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Family Applications (1)

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CN2012202027819U Active CN202558879U (en) 2012-05-08 2012-05-08 Electric furnace flue gas waste heat recovery device

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CN (1) CN202558879U (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103196125A (en) * 2013-04-16 2013-07-10 四川川润动力设备有限公司 Waste heat boiler utilizing tail gas of nickel smelting system
CN106196023A (en) * 2016-07-25 2016-12-07 泉州恒兴能源节能技术有限公司 A kind of cleaning burning coal CFBB
CN106196028A (en) * 2016-07-25 2016-12-07 泉州恒兴能源节能技术有限公司 A kind of organic heat carrier CFBB
CN106224941A (en) * 2016-07-25 2016-12-14 泉州恒兴能源节能技术有限公司 A kind of organic heat carrier steam hot wind combination heating power coproduction CFBB
CN109573663A (en) * 2018-12-26 2019-04-05 湖北展高机械装备有限公司 A kind of device for reducing dust for induced air of decaying

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103196125A (en) * 2013-04-16 2013-07-10 四川川润动力设备有限公司 Waste heat boiler utilizing tail gas of nickel smelting system
CN106196023A (en) * 2016-07-25 2016-12-07 泉州恒兴能源节能技术有限公司 A kind of cleaning burning coal CFBB
CN106196028A (en) * 2016-07-25 2016-12-07 泉州恒兴能源节能技术有限公司 A kind of organic heat carrier CFBB
CN106224941A (en) * 2016-07-25 2016-12-14 泉州恒兴能源节能技术有限公司 A kind of organic heat carrier steam hot wind combination heating power coproduction CFBB
CN106196023B (en) * 2016-07-25 2018-01-02 泉州恒兴能源节能技术有限公司 One kind cleaning burning coal CFBB
CN106196028B (en) * 2016-07-25 2018-01-05 泉州恒兴能源节能技术有限公司 A kind of organic heat carrier CFBB
CN106224941B (en) * 2016-07-25 2018-09-11 泉州恒兴能源节能技术有限公司 A kind of organic heat carrier steam hot wind combination heating power coproduction circulating fluidized bed boiler
CN109573663A (en) * 2018-12-26 2019-04-05 湖北展高机械装备有限公司 A kind of device for reducing dust for induced air of decaying

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