CN2239606Y - Local fume exhaust cover for d.c electric arc furnace - Google Patents
Local fume exhaust cover for d.c electric arc furnace Download PDFInfo
- Publication number
- CN2239606Y CN2239606Y CN 95241828 CN95241828U CN2239606Y CN 2239606 Y CN2239606 Y CN 2239606Y CN 95241828 CN95241828 CN 95241828 CN 95241828 U CN95241828 U CN 95241828U CN 2239606 Y CN2239606 Y CN 2239606Y
- Authority
- CN
- China
- Prior art keywords
- electric arc
- local
- arc furnace
- utility
- exhaust cover
- 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 - Lifetime
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- Vertical, Hearth, Or Arc Furnaces (AREA)
Abstract
The utility model belongs to the technical field of common furnaces, and discloses a local fume exhaust cover which is suitable for DC electric arc furnaces. The utility model is characterized in that the fume exhaust cover is a ring-shaped cover whose inner side face is provided with a wedge-shaped air suction mouth. The utility model has the advantages of reasonable air distribution, simple structure, easy fabrication, few investment and operating cost, reaches optimal smoke dust collecting effect under the condition of smaller air quantity, and is suitable for local fume exhausting of the DC electric arc furnaces.
Description
The utility model belongs to the technical field of general stove, especially provides a kind of direct current electric arc furnace local enclosure.
Electric arc furnaces divides ac arc furnace and direct current electric arc furnace, and the local enclosure of existing ac arc furnace mainly contains three kinds of forms, and promptly furnace roof enclosure, bell cover and pincer are covered, and the furnace roof enclosure is higher from electric arc furnaces, captures flue dust and needs air quantity greatly, and the air draught energy consumption is big; The bell cover is near apart from electric arc furnaces, temperature height in the stove, and enclosure is yielding, and water-cooling system, enclosure complex structure must be set; Pincerlike cover is to be provided with for capturing three electrode bars of ac arc furnace flue dust on every side, and the enclosure structure is complicated, maintenance management inconvenience, and pick-up performance is not good yet; Direct current electric arc furnace is the new electric arc furnaces that has only an electricity and rod that occurs in recent years, and the local enclosure of direct current electric arc furnace utilizes existing ac arc furnace enclosure smoke discharging effect all undesirable.
The purpose of this utility model be to provide a kind of be suitable for the local row of direct current electric arc furnace because of enclosure, make this cover air current composition reasonable, simple in structure, make easily, and can be issued to the smoke catching effect of the best in less air quantity condition.
The purpose of this utility model realizes as follows: around the electrode bar on direct current electric arc furnace top, the enclosure of an annular is set, there is the wedge shape inlet scoop circular cowling inboard, and the flue dust that arc furnace electrode rod hole seam overflows is sucked effectively in the wedge shape inlet scoop.
It is reasonable to the utlity model has air current composition, simple in structure, makes easily, can be issued to best smoke catching effect in less air quantity condition, thereby smoke evacuation system is little, and investment and running cost reduce.Be applicable to the local smoke evacuation system of direct current electric arc furnace.
The utility model is described in further detail below in conjunction with accompanying drawing:
Fig. 1 is that the utility model is installed in front view on the electric arc furnaces
Fig. 2 is the vertical view of Fig. 1
Fig. 3 is the expanded view of circular cowling medial surface
Among the figure, part 1 is a direct current electric arc furnace, and part 2 is circular cowlings, and part 3 is electrode bars, and part 4 is shape cover medial surfaces, and part 5 is wedge shape inlet scoops, and part 6 is cold covers, and part 7 is to pick out pipe.
Around the electrode bar 3 on direct current electric arc furnace 1 top, the enclosure 2 of an annular is set, circular cowling 2 medial surfaces 4 have wedge shape inlet scoop 5, and open height constantly reduces with the increase of inhaling people's negative pressure along airflow direction in this wedge shape air port 5, forms even air draught effect on week in 4 gardens, inboard of circular cowling 2.Electric furnace dust overflows through the peripheral clearance of water collar 6 with electrode bar 3, overflows flue dust and rises to circular cowling 2, is evenly sucked by the wedge shape inlet scoop 5 of circular cowling 2 inboards 4, and sucks dust pelletizing system from picking out pipe 7.
Claims (1)
- The local enclosure of a kind of direct current electric arc furnace (1) is characterized in that enclosure is the circular cowling (2) that medial surface has wedge shape inlet scoop (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95241828 CN2239606Y (en) | 1995-06-30 | 1995-06-30 | Local fume exhaust cover for d.c electric arc furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95241828 CN2239606Y (en) | 1995-06-30 | 1995-06-30 | Local fume exhaust cover for d.c electric arc furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2239606Y true CN2239606Y (en) | 1996-11-06 |
Family
ID=33882904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95241828 Expired - Lifetime CN2239606Y (en) | 1995-06-30 | 1995-06-30 | Local fume exhaust cover for d.c electric arc furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2239606Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102564107A (en) * | 2010-12-30 | 2012-07-11 | 张振海 | Energy saving system of submerged arc furnace |
| CN103134563A (en) * | 2011-11-29 | 2013-06-05 | 北汽福田汽车股份有限公司 | Air distribution detecting device, air outlet tool and air distribution detecting method thereof |
| CN107906972A (en) * | 2017-12-07 | 2018-04-13 | 中冶京诚工程技术有限公司 | The electric arc furnaces furnace wall cover of flue dust can be reduced |
-
1995
- 1995-06-30 CN CN 95241828 patent/CN2239606Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102564107A (en) * | 2010-12-30 | 2012-07-11 | 张振海 | Energy saving system of submerged arc furnace |
| CN103134563A (en) * | 2011-11-29 | 2013-06-05 | 北汽福田汽车股份有限公司 | Air distribution detecting device, air outlet tool and air distribution detecting method thereof |
| CN107906972A (en) * | 2017-12-07 | 2018-04-13 | 中冶京诚工程技术有限公司 | The electric arc furnaces furnace wall cover of flue dust can be reduced |
| CN107906972B (en) * | 2017-12-07 | 2023-01-31 | 中冶京诚工程技术有限公司 | Electric arc furnace wall cover capable of reducing smoke dust |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: ZHONGYE SAIDI ENGINEERING TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: CHONGQING IRON AND STEEL DESIGN INST., MINISTRY OF METALLURGICAL INDUSTRY Effective date: 20030919 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20030919 Patentee after: Zhongye Saide Engineering Technology Co., Ltd. Patentee before: Chongqing Iron and Steel Design Inst., Min MI |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |