CN103695658A - Tunnel type slag-hole-adjustable continuous fuming furnace - Google Patents
Tunnel type slag-hole-adjustable continuous fuming furnace Download PDFInfo
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- CN103695658A CN103695658A CN201410017026.7A CN201410017026A CN103695658A CN 103695658 A CN103695658 A CN 103695658A CN 201410017026 A CN201410017026 A CN 201410017026A CN 103695658 A CN103695658 A CN 103695658A
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Abstract
The invention provides a tunnel type slag-hole-adjustable continuous fuming furnace. The furnace comprises a hearth, wind holes, a feeding hole, a slag discharging hole and a vertical-lift flue, wherein the hearth is designed into a tunnel type structure; the wind holes are formed in two sides of the bottom of the hearth, the feeding hole and the slag discharging hole are respectively formed in the head and tail ends of the hearth, and the heights of the tops of the hearth from the feeding hole to the slag discharging hole are designed to be increased in a step manner; the vertical-lift flue is arranged at the top of a slag discharging end of the hearth; the height of the slag discharging hole can be adjusted. The tunnel type slag-hole-adjustable continuous fuming furnace has the advantages that the production is continuous, process parameters are easy to control, and the steam produced by the waste heat of the flue gas is continuous and stable; a pulverized coal preparation system is not needed.
Description
Technical field
The present invention relates to a kind of nonferrous metallurgy field slag fuming retrieving arrangement, specifically the adjustable cinder notch continuous fuming furnace of a kind of tunnel like.
Background technology
The processing of various slags in non-ferrous metallurgical enterprise, especially plumbous cadmia is processed, and all extensively adopts fuming furnace.
The operating procedure process of tradition fuming furnace, for being interrupted operation, adopts fine coal as reductive agent, and fine coal blasts in stove by air port together with wind.The drawback existing: the one, the washing away of air port wind-engaging coal high-velocity particle stream, serious wear, the life-span is short; The 2nd, due to for being interrupted steam that its fume afterheat of operation produces also for discontinuous and Wave crest and wave trough fluctuation is very large, be unfavorable for utilizing; The 3rd, need complicated fine coal preparation system.
Summary of the invention
The object of the invention is to for the deficiencies in the prior art, provide a kind of tunnel like adjustable cinder notch continuous fuming furnace, this fuming furnace is applicable to the processing of various slags in non-ferrous metallurgical enterprise, especially plumbous cadmia is processed, production is continuous, processing parameter is easy to control, fume afterheat institute producing steam continous-stable, without fine coal preparation system.
The technical scheme that the present invention takes is as follows: a kind of tunnel like is adjustable cinder notch continuous fuming furnace, and comprise burner hearth, air port, opening for feed, slag-drip opening, go straight up to flue, wherein chamber design becomes tunnel structure; Air port is arranged on the two bottom sides of burner hearth, and the be placed in head and the tail two ends of burner hearth of opening for feed and slag-drip opening, are that step type rises from opening for feed to slag-drip opening roof of the furnace height design; Go straight up to flue and be arranged on burner hearth deslagging end top; The height of slag-drip opening is adjustable.
The tuyere zone siege Section Design growth rectangle that described air port forms, width range is between 1000-1200mm, and tuyere zone length is more than or equal to 6 by tuyere zone long-width ratio and determines.
The tuyere zone concrete size of siege section is to determine according to treatment capacity, and feature of the present invention is to have limited width range (between 1000-1200mm), and length will be determined by the when tuyere zone siege section total area calculating of tuyere zone length and width.
Described burner hearth, becomes step type to rise along its length from feed end to deslagging end roof of the furnace height design.Feed end roof of the furnace height, apart from air port 2600-3000mm, from feed end, is raised 0.5 to 1 meter every 2 to 3 meters of roof of the furnaces along its length.
The described flue of going straight up to, is surrounded by membrane wall, high 4 to 6 meters, is connected with waste heat boiler.
Described deslagging end top with go straight up to flue bottom and be provided with overfiren air port
The air port of described burner hearth bottom both sides is Heterogeneous Permutation.
The present invention becomes tunnel structure by chamber design, the reaction interval that gallery forms, can make slag, coal, wind in burner hearth merge fully, react, along passage, slowly flow forward, and guarantee slag, coal, the fusion of wind, reaction times by adjusting slag-drip opening height; Dislocation air port arrangement design has not only guaranteed the even of air intake but also can avoid relative air port to blowing the kinetic energy rejection causing.Flue gas constantly collects towards cinder notch direction, and because furnace cavity is constantly raised expansion, the flow velocity of flue gas remains on certain scope substantially.The furnace cavity of deslagging end adds that the space of going straight up to flue forms a large cavity, and secondary air is oxidized the metal vapors flue gas from being blown into here in stove, and the carbonic oxide in flue gas is burnt away, and through going straight up to flue, enters waste heat boiler thereafter.
Air port of the present invention is washing away of wind-engaging coal high-velocity particle stream no longer, improved whole service life; By tunnel-type hearth, the new design such as slag dam formula adjustable row cinder notch, make the flow velocity of flue gas substantially remain on certain scope, and the steam that fume afterheat produces is continous-stable more, are convenient to utilize; By tunnel-type hearth, the new design such as slag dam formula adjustable row cinder notch, fully merge slag, coal, wind, and complete reaction, therefore also without fine coal preparation system.
Accompanying drawing explanation
Fig. 1 is the structural representation that the embodiment of the present invention provides;
Fig. 2 is the side-view that the embodiment of the present invention provides;
In the drawings:
At the bottom of 1-opening for feed 2-air port 3-, water jacket 4-goes straight up to flue 5-overfiren air port 6-deslagging end 7-slag-drip opening 8-burner hearth.
Embodiment
Below in conjunction with drawings and Examples, the present invention will be described
According to Fig. 1, Fig. 2, the adjustable cinder notch continuous fuming furnace of tunnel like of the present invention is specifically implemented to do following description.
The disclosed tunnel like of the present embodiment is adjustable cinder notch continuous fuming furnace, comprises burner hearth 8, air port 2, opening for feed 1, slag-drip opening 7, goes straight up to flue 4, and wherein burner hearth 8 is designed to tunnel structure; Air port 2 is arranged on the two bottom sides of burner hearth 8, and the be placed in head and the tail two ends of burner hearth of opening for feed 1 and slag-drip opening 7, are that step type rises from opening for feed 1 to slag-drip opening 7 roof of the furnace height designs; Go straight up to flue 4 and be arranged on burner hearth deslagging end 6 tops; The height of slag-drip opening 7 is adjustable.
Tuyere zone siege Section Design growth rectangle, width is 1100mm, length is 7000mm.Feed end roof of the furnace height is apart from air port 2800mm.
Liquid slag, go back raw coal etc. and enter in burner hearth 8 by charging opening 1, one time wind blasts in burner hearth 8 by air port 2.Because burner hearth 8 is narrow tunnel like passage, slag, coal, wind, in the interior sufficient fusion of burner hearth 8, reaction, slowly flow forward along burner hearth 8, and by adjusting slag-drip opening 7, highly guarantee fusion, the reaction times of slag, coal, wind.
Flue gas constantly collects towards slag-drip opening 7 directions, and because expansion is constantly raised in burner hearth 8 spaces, the flow velocity of flue gas remains on certain scope substantially.The furnace cavity of deslagging end 6 adds that the space of going straight up to flue 4 forms a large cavity, and secondary air is blown in stove the metal vapors flue gas is oxidized from overfiren air port 5, and the carbonic oxide in flue gas is burnt away, and through going straight up to flue 4, enters waste heat boiler thereafter.Slag is discharged continuously through slag-drip opening 7.
Claims (8)
1. the adjustable cinder notch continuous fuming furnace of tunnel like, is characterized in that: comprise burner hearth, air port, opening for feed, slag-drip opening, go straight up to flue, wherein chamber design becomes tunnel structure; Air port is arranged on the two bottom sides of burner hearth, and the be placed in head and the tail two ends of burner hearth of opening for feed and slag-drip opening, are that step type rises from opening for feed to slag-drip opening roof of the furnace height design; Go straight up to flue and be arranged on burner hearth deslagging end top; The height of slag-drip opening is adjustable.
2. the adjustable cinder notch continuous fuming furnace of a kind of tunnel like according to claim 1, is characterized in that: the tuyere zone siege that described air port forms is designed to long rectangle, and width range is between 1000-1200mm, and length range is more than or equal to 6 by long-width ratio and determines.
3. the adjustable cinder notch continuous fuming furnace of a kind of tunnel like according to claim 1, it is characterized in that: the roof of the furnace of feed inlet end is apart from burner hearth bottom air port 2600-3000mm, from opening for feed, every 2 to 3 meters of roof of the furnace height, raise 0.5 to 1 meter along its length.
4. the adjustable cinder notch continuous fuming furnace of a kind of tunnel like according to claim 1, is characterized in that: described in go straight up to flue and surrounded by membrane wall.
5. the adjustable cinder notch continuous fuming furnace of a kind of tunnel like according to claim 1, is characterized in that: described in go straight up to flue height scope between 4 to 6 meters.
6. the adjustable cinder notch continuous fuming furnace of a kind of tunnel like according to claim 1, is characterized in that: described in go straight up to flue one end connect waste heat boiler.
7. the adjustable cinder notch continuous fuming furnace of a kind of tunnel like according to claim 1, is characterized in that: described burner hearth deslagging end top with go straight up to flue bottom and be provided with overfiren air port.
8. the adjustable cinder notch continuous fuming furnace of a kind of tunnel like according to claim 1, is characterized in that: the air port of described burner hearth bottom both sides is Heterogeneous Permutation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410017026.7A CN103695658B (en) | 2014-01-15 | 2014-01-15 | Tunnel like is adjustable cinder notch continuous fuming furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410017026.7A CN103695658B (en) | 2014-01-15 | 2014-01-15 | Tunnel like is adjustable cinder notch continuous fuming furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103695658A true CN103695658A (en) | 2014-04-02 |
| CN103695658B CN103695658B (en) | 2015-08-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410017026.7A Active CN103695658B (en) | 2014-01-15 | 2014-01-15 | Tunnel like is adjustable cinder notch continuous fuming furnace |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201169612Y (en) * | 2008-01-30 | 2008-12-24 | 段景堂 | Fuming furnace |
| CN202195692U (en) * | 2011-08-22 | 2012-04-18 | 长沙有色冶金设计研究院有限公司 | Oxygen-enrichment side-blowing continuous fuming furnace |
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2014
- 2014-01-15 CN CN201410017026.7A patent/CN103695658B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201169612Y (en) * | 2008-01-30 | 2008-12-24 | 段景堂 | Fuming furnace |
| CN202195692U (en) * | 2011-08-22 | 2012-04-18 | 长沙有色冶金设计研究院有限公司 | Oxygen-enrichment side-blowing continuous fuming furnace |
Non-Patent Citations (1)
| Title |
|---|
| 刘上五: "烟化炉的汽化冷却改造", 《有色金属（冶炼部分）》 * |
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| CN103695658B (en) | 2015-08-26 |
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