CN85102966A - Combined smoke furnace - Google Patents
Combined smoke furnace Download PDFInfo
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- CN85102966A CN85102966A CN85102966.3A CN85102966A CN85102966A CN 85102966 A CN85102966 A CN 85102966A CN 85102966 A CN85102966 A CN 85102966A CN 85102966 A CN85102966 A CN 85102966A
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- China
- Prior art keywords
- economizer
- furnace
- equipment
- combined smoke
- blowing
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- 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
Abstract
The present invention is combined into one the blowing equipment and the UTILIZATION OF VESIDUAL HEAT IN equipment of heavy non-ferrous metal slag, is blowing equipment, is again UTILIZATION OF VESIDUAL HEAT IN equipment.This combined smoke furnace is provided with membrane wall in upper of furnace body, oblique flue and radiation chamber front portion; The radiation chamber rear portion is provided with curtain wall; Under connect U type tube air preheater and loop economizer.CZ250 electric and magnetic oscillation dust remover is housed on economizer.This equipment can be strengthened blowing, and can produce 13kgf/cm
2Above saturation steam or superheated vapour, air preheating temperature are more than 200 ℃ and improve the boiler feed water temperature.
Description
The present invention reduces blowing with the fusion of lead of leaded zinc, zinc, tin and copper ashes feeding under coal dust and the conditions of air.At high temperature, metals such as the lead in the slag, zinc, tin volatilizations is enriched in the flue dust and is collected; And the waste heat in the flue gas is used for producing saturation steam and preheated air.Therefore combined smoke furnace is the blowing equipment of lead, zinc, tin, copper ashes, is again the equipment that the waste heat of the flue gas that will produce in its converting process is used.
At present, all fuming furnaces of China are box jacket structure for water, and the calorific loss that water coolant is taken away is too much, and very few fuming furnace water jacket produces low-pressure saturated steam, because it is subjected to the restriction of box jacket structure for water, and the saturated vapour pressure that produces only can 4kgf/cm
2The use device of the fume afterheat that is provided with behind only indivedual fuming furnaces, its heat utilization efficiency is less than 40%.
The seventies later stage, though occurred the fuming furnace of reworked in the world, improved the fume afterheat utilization ratio of fuming furnace, imperfection very, unreasonable structure, heat utilization efficiency are still low.From the structure to the UTILIZATION OF VESIDUAL HEAT IN, do not have new breakthrough (with reference to patent No. PATUS407652, Britain's science abstract and U.S.'s metal digest).
The present invention adopts new structure formation, has both strengthened the fuming furnace blowing, has improved the fume afterheat utilization ratio again.
The first half of combined smoke furnace is made blowing slag usefulness, utilizes the part of waste heat in the flue gas simultaneously, and latter half mainly reclaims the waste heat in the flue gas.Combined smoke furnace slag inlet (arriving the bottom apart from 3700mm) is above by φ 51 * 5mm, and the membrane wall of spacing 120mm is formed.Its back is provided with φ 51 * 5mm, the oblique flue that the membrane wall of spacing 120mm is formed.Tiltedly the flue back is arranged by φ 51 * 3.5mm, and the through type membrane wall radiation chamber of spacing 120mm is provided with 8 rows therebetween, 8 row, and transverse pitch 420mm, and the curtain wall of longitudinal pitch 120mm, last flue gas is discharged (see figure 1) through loop economizer
The film water cold wall structure that the combined smoke furnace slag inlet is above has constituted the part of waste heat boiler.This part is in the above fume high-temperature section of 1300(, not only effectively utilizes the part of waste heat of fuming furnace body, and can make full use of flue gas heat.This part can produce pressure is 13kg f/cm
2Saturation steam 1.5～2t/hr, account for whole boiler duty 15～20%.The furnace construction connection and reasonable arrangement of this form, the heat utilization efficiency height, the life-span is long.The oblique flue temperature of membrane wall is up to more than 1000 ℃, and the about 2t/hr of steam production accounts for 20% of total steam production.The steam production of radiant cooling room and curtain wall accounts for 65～70%.
Air preheater further reduction flue-gas temperature is set, reclaim the waste heat in the flue gas, because the flue-gas temperature of radiant cooling room outlet still has 580～600 ℃.The structure formation of air preheater is U type tubular type, pipe specification φ 57 * 3, and spacing 120mm, heating surface area is 350m
2But preheated air amount 18,000NM
3/ hr, hot air temperature can reach 250 ℃.Warm air directly uses for the imperial smelting furnace blowing, can save coke 10～15%.
Unlikely too high for the funnel temperature that makes combined smoke furnace, afterbody is established loop economizer, and the may command funnel temperature is about 250 ℃ like this.Simultaneously supply water temperature is brought up to more than 80 ℃ from 15 ℃.
Because the fuming furnace dust content is higher, usually at 100～160g/NM
3, the dust rate at blowing initial stage is up to 150～200g/NM
3, and flue dust has very big cohesiveness.Institute thinks and avoids flue dust to stop up and be easy to remove dust stratification, taked coarse pitch (transverse pitch 90mm, longitudinal pitch 100mm) on the economizer structure, and serpentine tube is that in-line arrangement is arranged.For further solving the deashing problem, except two CZ-3.5 stock sootblowers are installed, 8 CZ250 type electric and magnetic oscillation dust remover (see figure 2)s are housed also at economizer.This electric and magnetic oscillation dust remover frequency is 3000RPm, and amplitude is 1.5mm.The dust remover of this form not only can be removed the agglutinating dust, and don't damage equipment, thereby prolongs the work-ing life of economizer.
Therefore combined smoke furnace has improved productivity owing to adopted above-mentioned structure formation and new deashing device, 230～250 tons in day blowing slag, bed ability 35～37t/m
2D, heat utilization efficiency is 75～80%, has improved 30～35% than the utilization rate of waste heat of general fuming furnace; Economic benefit is also very high, and a year economic benefit is 60～700,000 yuan.The repayment of principal in back 2 years of going into operation of this sample equipment got out of the red on the 3rd year.
Accompanying drawing 1 is the vertical planning drawing of combined smoke furnace.
Accompanying drawing 2 is local structure figure of economizer (7).
Watercooling jacket (1) is arranged at the bottom of fuming furnace body of heater (4), and membrane wall (2) is arranged at top.Flue gas is discharged after tiltedly flue (3), radiation chamber (5), air give hot device (6) and economizer (7).
Documents of correction
Claims (3)
- The present invention blows fused lead-zinc furnace cinder, scruff and copper ashes in combined smoke furnace, make metal volatilizations such as plumbous zinc in the slag, tin, is enriched in the flue dust and is collected, and reclaim waste heat in the flue gas, produces saturation steam and preheated air.1, combined smoke furnace is formed (see figure 1) by following part, i.e. membrane wall fuming furnace, the oblique flue of membrane wall, membrane wall radiant cooling room, curtain wall, U type tubular air preheater and loop economizer etc.Feature of the present invention is that slag blowing and its UTILIZATION OF VESIDUAL HEAT IN strike up partnership, and constitute combined smoke furnace, and afterbody is provided with the economizer of special shape.
- 2, the constructional feature of economizer described in the claim 1 is coarse pitch (laterally 96mm, vertically 100mm), and serpentine tube is arranged along row.
- 3, the dust remover of economizer in claim 1, adopting special rapping mode is high frequency (3000RPm), by a narrow margin the CZ250 electromagnetic vibrator of (1.5mm).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN85102966A CN1009464B (en) | 1985-04-22 | 1985-04-22 | Combined smoke furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN85102966A CN1009464B (en) | 1985-04-22 | 1985-04-22 | Combined smoke furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN85102966A true CN85102966A (en) | 1987-06-10 |
| CN1009464B CN1009464B (en) | 1990-09-05 |
Family
ID=4792888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN85102966A Expired CN1009464B (en) | 1985-04-22 | 1985-04-22 | Combined smoke furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1009464B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103528186A (en) * | 2013-10-08 | 2014-01-22 | 浙江光炎节能环保科技股份有限公司 | Cylindrical high-temperature biomass hot blast furnace |
| CN104048515A (en) * | 2014-04-22 | 2014-09-17 | 邱江波 | Flue gas treatment equipment and flue gas treatment method |
| CN106288829A (en) * | 2016-08-16 | 2017-01-04 | 白银有色集团股份有限公司 | Reduce silver copper smelter waste heat boiler water-cooling wall dust stratification, the gas sealing system of bonding |
| CN106282565A (en) * | 2016-08-28 | 2017-01-04 | 桂林新艺制冷设备有限责任公司 | A kind of fuming furnace of pre-recuperation of heat |
-
1985
- 1985-04-22 CN CN85102966A patent/CN1009464B/en not_active Expired
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103528186A (en) * | 2013-10-08 | 2014-01-22 | 浙江光炎节能环保科技股份有限公司 | Cylindrical high-temperature biomass hot blast furnace |
| CN103528186B (en) * | 2013-10-08 | 2015-03-11 | 浙江光炎节能环保科技股份有限公司 | Cylindrical high-temperature biomass hot blast furnace |
| CN104048515A (en) * | 2014-04-22 | 2014-09-17 | 邱江波 | Flue gas treatment equipment and flue gas treatment method |
| CN104048515B (en) * | 2014-04-22 | 2016-08-24 | 天津闪速炼铁技术有限公司 | Fume treatment auxiliary and the method processing flue gas |
| CN106288829A (en) * | 2016-08-16 | 2017-01-04 | 白银有色集团股份有限公司 | Reduce silver copper smelter waste heat boiler water-cooling wall dust stratification, the gas sealing system of bonding |
| CN106282565A (en) * | 2016-08-28 | 2017-01-04 | 桂林新艺制冷设备有限责任公司 | A kind of fuming furnace of pre-recuperation of heat |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1009464B (en) | 1990-09-05 |
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| C19 | Lapse of patent right due to non-payment of the annual fee |