CN101260449A - Steel-smelting converter gravitation dry method dust-removing and residual heat reclaiming device - Google Patents

Steel-smelting converter gravitation dry method dust-removing and residual heat reclaiming device Download PDF

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Publication number
CN101260449A
CN101260449A CNA2008101053710A CN200810105371A CN101260449A CN 101260449 A CN101260449 A CN 101260449A CN A2008101053710 A CNA2008101053710 A CN A2008101053710A CN 200810105371 A CN200810105371 A CN 200810105371A CN 101260449 A CN101260449 A CN 101260449A
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flue
converter
boiler
dry method
steel
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CNA2008101053710A
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CN100552048C (en
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杨昭平
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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

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  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)

Abstract

The invention provides a converter steelmaking gravity dry method dedusting and afterheat recycling device, comprising a converter which is connected with a gravity deduster through a flue, wherein, the gravity deduster is connected with a ripple compensator through the flue, the ripple compensator is connected with a dedusting boiler through the flue, the dedusting boiler is connected with a thermotube exchanger through the flue, the thermotube exchanger is connected with a woven bag deduster through the flue, the woven bag deduster is connected with a flue gas spraying device through the flue, the flue gas spraying device is connected with an induced draft fan through the flue, the periphery of one section of the flue between the converter and the gravity deduster is provided with a vaporizing cooling device, the upper end of the vaporizing cooling device is provided with a vaporizing steam pipeline, the upper end of the dedusting boiler is provided with a boiler steam pipeline, the upper ends of the vaporizing steam pipeline and the boiler steam pipeline are communicated with a main steam pipeline, the periphery of the gravity deduster is provided with a vaporizing spraying device. The converter steelmaking gravity dry method dedusting and afterheat recycling device can recycle the powder particle high-heat flue gas generated by the converter after the treatments of decreasing the temperature and dedusting by a series of devices and realize the good performance of energy conservation and emission reduction.

Description

Steel-smelting converter gravitation dry method dust-removing and waste-heat recovery device
Technical field
The present invention relates to a kind of converter steelmaking dedusting and waste-heat recovery device, particularly relate to and a kind ofly utilize gravitation dry method dust-removing and waste heat recovery to utilize again, realize the device of energy-saving and emission-reduction, belong to smelting iron and steel energy-conserving and environment-protective technical field.
Background technology
The popular feeling that deepens continuously along with Scientific Outlook on Development theory, energy-saving and emission-reduction in the Industrial processes have been the problem that people extremely pay close attention to and pay attention to, in the field of steel-making, the discharging environmental pollution of dust granules is very serious, distributing of waste heat makes a very bad impression to weather, also produces huge waste simultaneously.Therefore, dust granules how to carry out steel-making converter discharging is the difficulty that current those skilled in the art must capture to the pollution of environment and the recovery of waste heat.In the prior art steel-making off gas treatment is mainly contained dry-method dust-removal device, but this device dust removing effects is not good and can't realize recycling to waste heat, involve great expense, the moving model complexity, another kind of mode is a Wet-way dust-collector, but the usefulness that does not also possess heat recovery, and dust removing effects is poor, complex structure.
Summary of the invention
The objective of the invention is to overcome above-mentioned the deficiencies in the prior art, provide a kind of and can realize energy-saving and emission-reduction, heat recovery, antipollution steel-smelting converter gravitation dry method dust-removing and waste-heat recovery device.
Technical scheme of the present invention is achieved in that a kind of steel-smelting converter gravitation dry method dust-removing and waste-heat recovery device, comprise converter, described converter is connected with gravitational precipitator by flue, described gravitational precipitator is connected with FlexbleJoint by flue, described FlexbleJoint is connected with dust removal boiler by Yin Dao, described dust removal boiler is connected with heat pipe exchanger by flue, described heat exchanger is connected with sack cleaner by flue, described sack cleaner is connected with the flue gas spray equipment by flue, described flue gas spray equipment connects induced draft fan by flue, one section flue periphery between described converter and the described gravitational precipitator is provided with apparatus for vapour-cooling, described apparatus for vapour-cooling upper end is provided with the boil-off pipeline, described dust removal boiler upper end is provided with boiler steam pipe, described boil-off pipeline, the boiler steam pipe upper end is connected with main steam line, steam in the described apparatus for vapour-cooling is by boil-off pipeline flow-direction main steam line, and the steam in the described dust removal boiler flows to main steam line by boiler steam pipe.
And described gravitational precipitator, dust removal boiler, sack cleaner lower end are equipped with the lime-ash discharging and collect mouth.
And the periphery of described gravitational precipitator is provided with the vaporization spray equipment of the inwall water spray of counterweight inertia force precipitator.
Steel-smelting converter gravitation dry method dust-removing of the present invention and waste-heat recovery device have following advantage with respect to prior art:
1, after the present invention's dust granules that converter can be produced and high hot flue gas are handled by a series of device, makes the particle of discharging drop to very low degree, can also carry out recycling to waste heat simultaneously, realized the effect of energy-saving and emission-reduction.
2, good dedusting effect of the present invention is with low cost, and is easy for installation.
Description of drawings
Fig. 1 is steel-smelting converter gravitation dry method dust-removing of the present invention and waste-heat recovery device structural representation.
Figure number explanation: 1, converter, 2, flue, 3, gravitational precipitator, 4, FlexbleJoint, 5, dust removal boiler, 6, heat pipe exchanger, 7, sack cleaner, 8, the flue gas spray equipment, 9, induced draft fan, 10, apparatus for vapour-cooling, 11, boil-off pipeline, 12, main steam line, 13, the lime-ash discharging collects mouthful, 14, vaporization spray equipment, 15, boiler steam pipe.
Embodiment
In order to make persons skilled in the art can know technical scheme of the present invention, now further elaborate in conjunction with the accompanying drawings:
Steel-smelting converter gravitation dry method dust-removing of the present invention and waste-heat recovery device, as Fig. 1, comprise converter 1, converter 1 is connected with gravitational precipitator 3 by flue 2, gravitational precipitator 3 is connected with FlexbleJoint 4 by flue 2, FlexbleJoint 4 is connected with dust removal boiler 5 by flue 2, dust removal boiler 5 is connected with heat pipe exchanger 6 by flue 2, heat exchanger 6 is connected with sack cleaner 7 by flue 2, sack cleaner 7 is connected with flue gas spray equipment 8 by flue 2, flue gas spray equipment 8 connects induced draft fan 9 by flue 2, one section flue 2 periphery between converter 1 and the gravitational precipitator 3 are provided with apparatus for vapour-cooling 10, apparatus for vapour-cooling 10 upper ends are provided with boil-off pipeline 11, dust removal boiler 5 upper ends are provided with boiler steam pipe 15, boil-off pipeline 11, boiler steam pipe 15 upper ends are connected with main steam line 12.
Gravitational precipitator 3, dust removal boiler 5, sack cleaner 7 lower ends are equipped with the lime-ash discharging and collect mouth 13 further.
The periphery of gravitational precipitator 3 also is provided with vaporization spray equipment 14 further.
Concrete grammar: converter 1 generation 1000 degree contain the above high hot flue gas of 80 ~ 150 gram/cubic meter dust granules in the smelting iron and steel, carry out heat exchange through flue 2 and the water coolant that is wrapped in the outer field apparatus for vapour-cooling 10 of flue front end, high hot flue gas is reduced to about 800 ~ 900 degree and by pipeline 2 enter gravitational precipitator 3, vaporization spray equipment 14 is annotated at gravitational precipitator 3 inwall injection waters by spray gun, regulating pondage and hot environment are guaranteed the water vapor of spray, after falling, big dust particle still is dry powder, collect mouthful 13 discharges by the lime-ash discharging, at this moment gravitational precipitator 3 outlet heating power exhaust gas dust degree are reduced to 60 gram/cubic meters, temperature is reduced to 700 ~ 800 degree, flue gas enters FlexbleJoint 4 by pipeline 2, enter special-purpose industrial dust removal boiler 5 by pipeline 2 again, flue gas heats water in boiler as thermal source, produce supersaturated vapor and insert main steam line 12 by boiler steam pipe 15, dust will be collected mouthful 13 discharges from the lime-ash discharging of dust removal boiler 5 bottoms simultaneously, the flue-gas temperature of dust removal boiler 5 outlets will be reduced to about 150 degree, enter heat pipe exchanger 6 by pipeline 2 then, flue gas further cools off, the heat that heat pipe exchanger 6 absorbs is directly used in the preheating of dust removal boiler 5 feedwater, the flue-gas temperature of heat pipe exchanger 6 outlets is reduced to about 110 degree, enter sack cleaner 7 by pipeline 2, after sack cleaner 7 dedustings, flue gas passes through flue gas spray equipment 8 again, make temperature reduce to 45 ~ 60 degree, recycle by 9 pairs of flue gases of induced draft fan at last, to main steam line 12, arrange to main steam line 12 by boiler steam pipe 15 by the superheated vapour in the dust removal boiler 5 by boil-off pipeline 11 rows for the superheated vapour that produces in the apparatus for vapour-cooling 10.The high heat that the present invention can produce converter, macrobead cigarette vapour cooling dedusting have reached the good result of heat recovery, energy-saving and emission-reduction.

Claims (3)

1, a kind of steel-smelting converter gravitation dry method dust-removing and waste-heat recovery device, comprise converter (1), it is characterized in that, described converter (1) is connected with gravitational precipitator (3) by flue (2), described gravitational precipitator (3) is connected with FlexbleJoint (4) by flue (2), described FlexbleJoint (4) is connected with dust removal boiler (5) by flue (2), described dust removal boiler (5) is connected with heat pipe exchanger (6) by flue (2), described heat exchanger (6) is connected with sack cleaner (7) by flue (2), described sack cleaner (7) is connected with flue gas spray equipment (8) by flue (2), described flue gas spray equipment (8) connects induced draft fan (9) by flue (2), one section flue periphery between described converter (1) and the described gravitational precipitator (3) is provided with apparatus for vapour-cooling (10), described apparatus for vapour-cooling (10) upper end is provided with boil-off pipeline (11), dust removal boiler (5) upper end is provided with boiler steam pipe (15), described boil-off pipeline (11), boiler steam pipe (15) upper end is connected with main steam line (12).
2, steel-smelting converter gravitation dry method dust-removing according to claim 1 and waste-heat recovery device is characterized in that, described gravitational precipitator (3), dust removal boiler (5), sack cleaner (7) lower end are equipped with the lime-ash discharging and collect mouthful (13).
3, steel-smelting converter gravitation dry method dust-removing according to claim 1 and waste-heat recovery device is characterized in that, the periphery of described gravitational precipitator (3) also is provided with vaporization spray equipment (14).
CNB2008101053710A 2008-04-29 2008-04-29 Steel-smelting converter gravitation dry method dust-removing and waste-heat recovery device Expired - Fee Related CN100552048C (en)

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CNB2008101053710A CN100552048C (en) 2008-04-29 2008-04-29 Steel-smelting converter gravitation dry method dust-removing and waste-heat recovery device

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CNB2008101053710A CN100552048C (en) 2008-04-29 2008-04-29 Steel-smelting converter gravitation dry method dust-removing and waste-heat recovery device

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CN100552048C CN100552048C (en) 2009-10-21

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101893385A (en) * 2010-06-09 2010-11-24 河南昇扬硅业科技发展有限公司 Device for power generation from waste heat of metallic silicon smelting electric furnace and process flow thereof
CN101532069B (en) * 2009-04-14 2011-03-16 江苏中金环保科技有限公司 Device for recycling flue gas of steelmaking converters through full-dry purification and process thereof
CN107970763A (en) * 2017-11-30 2018-05-01 安徽省恒伟铋业有限公司 A kind of collection system of metal smelt flue dust
CN108048619A (en) * 2018-01-25 2018-05-18 阳春新钢铁有限责任公司 A kind of converter dry dedusting and waste-heat recovery device and method

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101532069B (en) * 2009-04-14 2011-03-16 江苏中金环保科技有限公司 Device for recycling flue gas of steelmaking converters through full-dry purification and process thereof
CN101893385A (en) * 2010-06-09 2010-11-24 河南昇扬硅业科技发展有限公司 Device for power generation from waste heat of metallic silicon smelting electric furnace and process flow thereof
CN107970763A (en) * 2017-11-30 2018-05-01 安徽省恒伟铋业有限公司 A kind of collection system of metal smelt flue dust
CN108048619A (en) * 2018-01-25 2018-05-18 阳春新钢铁有限责任公司 A kind of converter dry dedusting and waste-heat recovery device and method
CN108048619B (en) * 2018-01-25 2024-02-09 阳春新钢铁有限责任公司 Dry dedusting and waste heat recovery device and method for converter

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EE01 Entry into force of recordation of patent licensing contract

Assignee: Lengshuijiang Iron & Steel Co., Ltd.

Assignor: Yang Zhaoping

Contract record no.: 2010990000916

Denomination of invention: Steel-smelting converter gravitation dry method dust-removing and residual heat reclaiming device

Granted publication date: 20091021

License type: Exclusive License

Open date: 20080910

Record date: 20101119

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Granted publication date: 20091021

Termination date: 20130429