CN2295178Y - Electric-oven smoke collecting hood - Google Patents
Electric-oven smoke collecting hood Download PDFInfo
- Publication number
- CN2295178Y CN2295178Y CN 97204058 CN97204058U CN2295178Y CN 2295178 Y CN2295178 Y CN 2295178Y CN 97204058 CN97204058 CN 97204058 CN 97204058 U CN97204058 U CN 97204058U CN 2295178 Y CN2295178 Y CN 2295178Y
- Authority
- CN
- China
- Prior art keywords
- cover
- electric furnace
- kuppe
- current guide
- guide 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)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The utility model relates to a crown block passing type electric furnace smoke collecting hood which collects the smoke of a steel smelting electric furnace. The utility model is mainly composed of a current guide cover and a top sucking cover, wherein the crown block passes through a gap arranged between the current guide cover and the top sucking cover. The current guide cover comprises a fixed current guide cover and a movable current guide cover, and is lower than the lower edge of the crown block. The top sucking cover is arranged above the current guide cover, and is equivalent to a high umbrella shape cover, and the coverage is larger than the current guide cover. The utility model has simple and reliable structure, and can profitably collect the smoke of the overall smelting process of the electric furnace. The charging and the smoke during tapping cause the collecting rate to reach to more than 95 percent. The smelting technology and operation of the electric furnace can not be influenced. The utility model has low energy consumption, and can be widely used for the smoke treatment of large, medium and small-sized electric furnaces with various smelting methods.
Description
The utility model relates to the controlling device of steel-smelting electric furnace flue dust, belongs to the dedusting technology field.
The flue gas trapping form that present domestic improvement steel-smelting electric furnace flue dust is adopted mainly contains " four holes+roof cover " and " half-sealed cover " or " enclosed hood ".The electric furnace that they are applied to common power all has and captures effect preferably, but the part that also comes with some shortcomings, the capture weak effect of roof cover wherein, energy consumption height; Though it is higher that half-sealed cover or enclosed hood capture effect, can't capture the secondary smoke of operating modes such as charging.If be applied to uhp electric arc furnace and adopt the electric furnace of new technologies such as carbonyl spray gun, liquid iron charging then because electric furnace flue gas increase in temperature, exhaust gas volumn increase, its weak point is more outstanding: roof cover effect can further descend; Half-sealed cover or enclosed hood then are difficult to adapt to the same topic that flue-gas temperature is too high and exhaust gas volumn is big.If solve, obviously be uneconomic with improving the way of handling air quantity.Simultaneously, half-sealed cover or enclosed hood are at when filling with substance, and secondary smoke still can't capture.
The purpose of this utility model is design a kind of " overhead traveling crane through type electric furnace flue gas fume trap cover ", and function is better than the roof cover, structure is simpler, more reliable than half-sealed cover.It can not only capture the flue gas that steel-smelting electric furnace is smelted overall process, flue gas when comprising charging, tapping, improve dust arrestment rate to reach 〉=95%, and, can adapt to the development of smelting process technology, the improvement as various electric furnace dusts such as uhp electric arc furnace and employing carbon oxygen technology and liquid iron charging technologies does not influence smelting process, operation and maintenance, more do not influence the overhead traveling crane operation, and smoke evacuation captures flue gas simultaneously in can cooperating.
The purpose of this utility model is achieved in that overhead traveling crane through type electric furnace flue gas fume trap cover mainly inhales cover by kuppe and top and form.Kuppe comprises fixed cover and mobile cover, and the open-top of kuppe is lower than the overhead traveling crane lower edge.Push up and inhale the top that covers on kuppe, pushing up to inhale between cover and the kuppe has a space, pushes up to inhale to cover to be high umbrella hood, covers and greater than kuppe, pushes up to inhale to cover and draw airduct to dust pelletizing system.The a large amount of flue gases that produce during electric furnace smelting rely on hot lifting power to rise, and this moment, kuppe forced flue gas to rise in the scope of kuppe, reduce flue gas stream and Air mixing, prevent diffusion, can cooperate air curtain in case of necessity, making flue gas rise to the top inhales when covering the lower edge, be difficult for overflowing, can also suppress the cross-flow interference in workshop, under the suction function of air-introduced machine, add that flue gas flows original hot lifting effect, flue gas continues to rise and enters to top suction cover, by pipeline, enters deduster and purifies.
" overhead traveling crane through type electric furnace flue gas fume trap cover " is the improvement of semi-hermetic fume trap cover structure, and promptly by being equivalent to the high umbrella hood that is equivalent to that low umbrella hood is improved to the middle part disconnection, the space between the cover is inhaled on kuppe and top, allows overhead traveling crane pass through from the centre.Uncorrelated substantially mutually because of its each part, there be not " butt joint coincide " of half-sealed cover, therefore, make structure more simple, more reliable; Because of its operating temperature greatly reduces than half-sealed cover, can adapt to the raising of flue-gas temperature and the increase of flue gas generating capacity again, the while condition of work of kuppe is better, and the top is inhaled cover and do not had problem on deformation, can not influence the normal operation of smelting production and dust removal installation.In addition, overhead traveling crane through type electric furnace flue gas fume trap cover is again improving of roof cover function and improves.Because set up kuppe, and kuppe cover mouth dwindles, the top is inhaled cover reduced cross-sectional height and is deepened, hood-shapedly improve into high umbrella shape, more help the capture of high-temperature flue gas, and flue gas stream rises and is difficult for diffusion, remedied the deficiency that the middle part disconnects, therefore, " overhead traveling crane through type electric furnace fume trap cover " made up the two kinds of functions and the advantage of roof cover and half-sealed cover, adopt its to administer electric furnace dust, it is simple to have equipment, reliable, stable performance, technical risk is little, flue gas trapping rate height, reduce the dedusting power consumption, reduce the filter bag dewfall, invest little, do not influence electric furnace smelting and overhead traveling crane operation, favourable electric furnace smelting overall process captures advantages such as flue gas.Can be widely used in the smoke gas treatment of each large, medium and small type electric furnace, be specially adapted to the electric furnace of uhp electric arc furnace and employing carbonyl spray gun, liquid iron charging technology.
Below in conjunction with drawings and Examples the utility model is further specified.
Figure one: be example structure schematic diagram of the present utility model.
Among the figure: 1. fixedly kuppe 2. dodge gates 3. move kuppe 4. tracks 5. top suction covers 6. exhaust opening pipelines 7. electric furnaces 8. overhead traveling cranes
In figure one, electric furnace 7 is smelted a large amount of high temperature dust flue gases that produce and is constrained in fixedly kuppe 1 and mobile kuppe 3, in the scope of dodge gate 2, rely on the heat power of lifting to rise, the minimizing flue gas mixes with cold air, when flue gas rises to the lower edge of top suction cover 5, because kuppe sectional area suitable for reading little (reducing), cooperate air curtain again, the cross-flow interference that decays under the air-introduced machine suction function, adds that flue gas flows original operation inertia, flue gas continues to rise to enter to push up and inhales cover 5, do not inhale outside the cover and can not overflow the top, enter exhaust opening pipeline 6 then, enter deduster by pipeline and purify.During electric furnace 7 maintenance, mobile kuppe 3 is opened by track 4.
Claims (3)
1. an overhead traveling crane through type electric furnace flue gas fume trap cover is inhaled to cover by kuppe and top and is formed, its
Feature is: kuppe and top are inhaled between the cover gap are arranged, and can allow overhead traveling crane pass through water conservancy diversion
Cover on the overhead traveling crane below, the top is inhaled and is covered on the overhead traveling crane top.
2. overhead traveling crane through type electric furnace flue gas fume trap cover according to claim 1 is characterized in that:
Kuppe is located at around the electric furnace, by fixedly kuppe, mobile cover kuppe and dodge gate group
Become, the kuppe top is opened wide.
3. overhead traveling crane through type electric furnace flue gas fume trap cover according to claim 1 is characterized in that:
The top is inhaled cover and is equivalent to high umbrella hood, covers and greater than kuppe, the top is inhaled the cover exhaust opening and passed through
Pipeline connects dust pelletizing system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97204058 CN2295178Y (en) | 1997-01-15 | 1997-01-15 | Electric-oven smoke collecting hood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97204058 CN2295178Y (en) | 1997-01-15 | 1997-01-15 | Electric-oven smoke collecting hood |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2295178Y true CN2295178Y (en) | 1998-10-21 |
Family
ID=33924700
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97204058 Expired - Lifetime CN2295178Y (en) | 1997-01-15 | 1997-01-15 | Electric-oven smoke collecting hood |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2295178Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1325178C (en) * | 2002-09-24 | 2007-07-11 | 无锡市东方环境工程设计研究所有限公司 | Electric stove dust elimination inside and outside discharge mixed abbreviated process |
| CN102445086A (en) * | 2011-09-01 | 2012-05-09 | 中冶东方工程技术有限公司 | Smoke collecting device of iron tapping hole of rotary electric furnace |
| CN103721993A (en) * | 2013-12-12 | 2014-04-16 | 金川集团股份有限公司 | Smoke collection device for smelting plant environment |
| CN104713375A (en) * | 2015-02-10 | 2015-06-17 | 赖卫华 | Electric furnace dedusting system |
-
1997
- 1997-01-15 CN CN 97204058 patent/CN2295178Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1325178C (en) * | 2002-09-24 | 2007-07-11 | 无锡市东方环境工程设计研究所有限公司 | Electric stove dust elimination inside and outside discharge mixed abbreviated process |
| CN102445086A (en) * | 2011-09-01 | 2012-05-09 | 中冶东方工程技术有限公司 | Smoke collecting device of iron tapping hole of rotary electric furnace |
| CN102445086B (en) * | 2011-09-01 | 2013-07-24 | 中冶东方工程技术有限公司 | Smoke collecting device of iron tapping hole of rotary electric furnace |
| CN103721993A (en) * | 2013-12-12 | 2014-04-16 | 金川集团股份有限公司 | Smoke collection device for smelting plant environment |
| CN104713375A (en) * | 2015-02-10 | 2015-06-17 | 赖卫华 | Electric furnace dedusting system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |