CN102242236B - Novel smoke-gas dustproof movable seal cover device of electric furnace - Google Patents
Novel smoke-gas dustproof movable seal cover device of electric furnace Download PDFInfo
- Publication number
- CN102242236B CN102242236B CN201110151424.4A CN201110151424A CN102242236B CN 102242236 B CN102242236 B CN 102242236B CN 201110151424 A CN201110151424 A CN 201110151424A CN 102242236 B CN102242236 B CN 102242236B
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- Prior art keywords
- enclosed hood
- seal cover
- seal
- shape
- sealing plate
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Links
- 238000007789 sealing Methods 0.000 claims description 61
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 18
- 239000003546 flue gas Substances 0.000 claims description 18
- 238000003825 pressing Methods 0.000 claims description 4
- 238000005260 corrosion Methods 0.000 claims description 2
- 230000007797 corrosion Effects 0.000 claims description 2
- 230000000712 assembly Effects 0.000 claims 1
- 238000000429 assembly Methods 0.000 claims 1
- 239000000463 material Substances 0.000 claims 1
- 239000002912 waste gas Substances 0.000 abstract description 5
- 238000003723 Smelting Methods 0.000 abstract description 2
- 239000000779 smoke Substances 0.000 abstract description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 6
- 239000007789 gas Substances 0.000 abstract 3
- 229910052742 iron Inorganic materials 0.000 abstract 3
- 239000002184 metal Substances 0.000 description 14
- 238000009628 steelmaking Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 5
- 238000003912 environmental pollution Methods 0.000 description 4
- 239000003500 flue dust Substances 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000004630 mental health Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001802 infusion Methods 0.000 description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Classifications
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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
- Y02P10/20—Recycling
Landscapes
- Vertical, Hearth, Or Arc Furnaces (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The invention disclosed a novel movable smoke-gas dustproof seal cover device of an electric furnace, comprising a left seal cover and a right seal cover and further comprising a seal plate. The left seal cover is convex, the upper part of the right surface of the left seal cover protrudes outwards corresponding to the lower part of the right surface of the left seal cover, the left seal cover is a reverse L-shaped cavity corresponding to the electric furnace, the reverse L-shaped cavity is divided into a left section and a right section, and the right section of the cavity is larger than the left section of the cavity; and the right seal cover is concave and is of a shape corresponding to the left seal cover, a seal plate is fixed in a concave part of the right seal cover, the shape of the seal plate is the same as the shape of the right section of the cavity of the left seal cover, and the size of the seal plate is just smaller than that of the cavity. When the whole seal plate is inserted into the right section of the cavity of the left seal cover, a plane E at the lower part of the right surface of the left seal cover is in contact with a plane E' at the lower part of the left surface of the right seal cover. When the left and the right seal covers for smelting and adding molten iron in the electric furnace are opened, the novel movable smoke-gas dustproof seal cover device disclosed by the invention can ensure that a molten iron adding trolley of the electric furnace successfully enters the electric furnace to add the molten iron; simultaneously, a seal space is still formed between the upper parts of the left and the right seal covers through the seal plate, thus smoke gas is prevented from gushing out, and the waste gas is ensured to be removed in a controllable range.
Description
Technical field
Flue gas dustproof movable enclosed hood device while the present invention relates to Electric furnace steel making.
Background technology
In EAF Steelmaking Process, while after electric furnace adds electric smelting 6～7 minutes starting hot metal charging operation, as shown in Figure 1 and Figure 2, existing flue gas dustproof movable seal cover needs left and right to open completely, guarantee electric furnace hot metal charging car enters electric furnace hot metal charging smoothly, total approximately 10 minutes hot metal charging time, the problem of bringing is thus: 1) a large amount of waste gas is gushed out and cannot be collected from opening of electric furnace top enclosed hood, and starts to spread in factory building.2) the about 12000Nm of exhausted air quantity producing
3/ h, wherein, smoke components: CO approximately 10%, CO
2approximately 15%, N
2approximately 65%, O
2approximately 10%.Flue dust chemical constitution: Fe
2o
3approximately 52.8%, MgO approximately 6.25%, AL
2o
3approximately 3.87%, SiO
2approximately 9.39%, S approximately 4.33%, and CuO approximately 6.96%, and CaO approximately 13.2%, and other are 1.2% years old.3) in factory building, fall to having the dirt layer of grit everywhere, be difficult for cleaning out.4) environmental pollution is serious, will directly have influence on staff's physical and mental health.5) in order to strengthen the collection dynamics of flue dust, will expend a large amount of maintenances and infusion of financial resources, and produce little effect.
Summary of the invention
Problem to be solved by this invention is to provide a kind of novel flue gas dustproof movable enclosed hood device for electric stove, its compact construction, sealing effectiveness is obvious, when electrosmelting hot metal charging left and right enclosed hood is opened, effectively prevented gushing out of flue gas, guaranteed that the waste gas that electric furnace produces is pumped in controlled range, solved the problem of environmental pollution that existing enclosed hood causes, guaranteed staff's physical and mental health.Meanwhile, a large amount of maintenances and infusion of financial resources have also been saved.
A kind of novel flue gas dustproof movable enclosed hood device for electric stove of the present invention, it comprises left and right enclosed hood, the vertical section of enclosed hood is inverted " L " shape, it is characterized in that: further comprising sealing plate; Left enclosed hood is convex, and the top on the right side is outwardly with respect to bottom, and its die cavity that is inverted " L " shape with respect to electric furnace is divided into two sections of left and right, the die cavity that the die cavity of right section is greater than left section; Right enclosed hood is spill, and shape is corresponding with left enclosed hood, at its spill place, is fixed with a sealing plate, sealing plate shape identical with the cavity shape of right section of left enclosed hood, its undersized is in the size of die cavity; When sealing plate all puts in the right segment type chamber of left seal closure, the right basifacial plane E of left enclosed hood contacts with the left basifacial plane E ' of right enclosed hood.
The present invention is the coincidence with the right segment type chamber of left enclosed hood by sealing plate, and making whole device is eclipsed form.Like this, when electrosmelting hot metal charging left and right enclosed hood is opened, when the space between the right basifacial plane E of left enclosed hood and the left basifacial plane E ' of right enclosed hood guarantees that electric furnace hot metal charging car enters electric furnace hot metal charging smoothly, between its top, by sealing plate, still form an airtight space, prevented gushing out of flue gas, guaranteed that the waste gas that electric furnace produces is pumped in controlled range.Therefore, it,, when meeting electric steelmaking process requirement and dustproof needs, has contained the pollution level of flue dust in factory building greatly, improves production automation degree and production efficiency, has also reduced production cost.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is further detailed explanation:
Fig. 1 is the schematic diagram of existing electric furnace flue gas dustproof movable seal cover when steel-making is closed;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is the schematic diagram of flue gas dustproof movable enclosed hood device for electric stove of the present invention when steel-making is closed;
Fig. 4 is the left view of Fig. 3;
Fig. 5 is the schematic diagram of flue gas dustproof movable enclosed hood device for electric stove of the present invention when hot metal charging;
Fig. 6 is the schematic diagram of flue gas dustproof movable enclosed hood device for electric stove of the present invention when maintenance is opened entirely;
Fig. 7 is the sectional view along A-A line in Fig. 3;
Fig. 8 is the sectional view along A '-A ' line in Fig. 3;
Fig. 9 is the sectional view along B-B line in Fig. 3;
Figure 10 is the sectional view along B '-B ' line in Fig. 3;
Figure 11 is the enlarged diagram at C place in Fig. 6;
Figure 12 is that D in Fig. 6 is to view.
Embodiment
From Fig. 3, Fig. 4, Fig. 5, Fig. 6, flue gas dustproof movable enclosed hood device for electric stove of the present invention, it comprises left and right enclosed hood 2,3, and the vertical section of enclosed hood is inverted " L " shape, and it also comprises sealing plate 4; Left enclosed hood 2 is convex, and the top on the right side is outwardly with respect to bottom, its with respect to electric furnace 5 for the die cavity of inverted " L " shape be divided into left and right two sections, the die cavity that the die cavity of right section is greater than left section; Right enclosed hood 3 is spill, and shape is corresponding with left enclosed hood 2, at its spill place, is fixed with a sealing plate 4, and the shape of sealing plate 4 is identical with the cavity shape of right section of left enclosed hood 2, and its undersized is in the size of die cavity; When sealing plate 4 all puts in the right segment type chamber of left seal closure 2, the right basifacial plane E of left enclosed hood 2 contacts with the left basifacial plane E ' of right enclosed hood 3.Wherein, sealing plate 4 can be an independent part, is connected with right enclosed hood 3; Sealing plate 4 can be also single piece with right enclosed hood 3, is two sections on same part.
In the present invention, by being connected to the overlapping of die cavity of sealing plate 4 on right enclosed hood 3 and right section of left enclosed hood 2, by mutual concaveconvex shape, making whole device is eclipsed form.Like this, when electrosmelting hot metal charging left and right enclosed hood is opened, when the space between the right basifacial plane E of left enclosed hood 2 and the left basifacial plane E ' of right enclosed hood 3 guarantees that electric furnace hot metal charging car enters electric furnace hot metal charging smoothly, between its top, by sealing plate 4, still form an airtight space, prevented gushing out of flue gas, guaranteed that the waste gas that electric furnace produces is pumped in controlled range.Wherein, left and right enclosed hood 2,3 moves to the left and right sides respectively when opening, and while closing, moves to centre simultaneously, and its power provides by transmission mechanism 1.
From Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9, Figure 10, as a kind of optimal way of the present invention, on the right side on left enclosed hood 2 tops, be provided with sealing member 6, on the crossing face of its left and right die cavity, be provided with sealing member 6; On the left side of sealing plate 4, be provided with sealing member 7, at right enclosed hood 3, be provided with sealing member 7 with the end face that the right-hand member of sealing plate 4 is connected, make whole device form the sealing of inside and outside twice contact end face labyrinth shape formula.Like this, when Electric furnace steel making left and right enclosed hood is closed, when the right basifacial plane E of left enclosed hood 2 contacts with the left basifacial plane E ' of right enclosed hood 3, sealing member 7 close contacts on sealing member 6 on the crossing face of the left and right die cavity of left enclosed hood 2 and the left side of sealing plate 4, sealing member 7 on the end face that right enclosed hood 3 is connected with the right-hand member of sealing plate 4 and the sealing member 6 on the right side on left enclosed hood 2 tops also close contact, played end part seal effect, the sealing while further having guaranteed steel-making.Wherein, sealing member 6 and sealing member 7 are preferably machicolated form each other, form closely and intersect, thereby make better end part seal between them, have prevented further gushing out of flue gas.
From Fig. 5, Fig. 6, Figure 11, Figure 12, as another optimal way of the present invention, on inversion " L " the shape face between the end of the left and right of sealing plate 4, be provided with at least one convex scraper-type seal assembly 8.Convex scraper-type seal assembly 8 comprises rubber 9, pressing plate 10, and pressing plate 10 is pressed in the both sides of rubber 9, by connecting parts, is fixed on sealing plate 4.Convex scraper-type seal assembly 8 is preferably four roads.As can be seen from Figure 5, when electrosmelting hot metal charging left and right enclosed hood is opened, on the overlay segment that is L in length, on sealing plate 4 between leftmost one convex scraper-type sealing member 8 and mobile left enclosed hood 2 in tight-seal condition, thereby prevented better gushing out of flue gas.
Wherein, in order to adapt to better the environment of work and the relative movement between the enclosed hood of left and right, rubber 9 is selected heat-resistant antifriction corrosion resistant compounded rubber, and its inside is hollow, makes it have certain elasticity.
In the present invention, the shape of left and right enclosed hood is not limited to the shape shown in accompanying drawing.Left and right enclosed hood can be that the die cavity that right enclosed hood is inverted " L " shape with respect to electric furnace is divided into two sections of left and right, the die cavity that the die cavity of left section is greater than right section, and on left enclosed hood, be connected with a sealing plate, sealing plate shape identical with the cavity shape of left section of right enclosed hood, its undersized is in the size of die cavity; When sealing plate all puts in the left segment type chamber of right seal closure, the right basifacial plane E of left enclosed hood contacts with the left basifacial plane E ' of right enclosed hood.Wherein, sealing plate 4 can be an independent part, is connected with right enclosed hood 3; Sealing plate 4 can be also single piece with right enclosed hood 3, is two sections on same part.Meanwhile, left and right enclosed hood also can be protruding for the recessed right side, a left side, can also be the same with existing left and right enclosed hood, and the face of both contacts is a plane or is other any shape.So long as by left enclosed hood, sealing plate, to make whole device be eclipsed form to right enclosed hood, all within protection scope of the present invention.
Flue gas dustproof movable enclosed hood device for electric stove of the present invention, is characterized in: left enclosed hood, sealing plate, right enclosed hood forms eclipsed form, and the end face of contact is labyrinth form sealing, and equitant part is the sealing of scraper plate form.When Electric furnace steel making and hot metal charging, whole movable enclosed hood device can keep good stopping property like this, has prevented gushing out of flue gas.The dustproof efficiency of apparatus of the present invention reaches 99.5%, makes to gush out to be controlled in the standard range of country's permission to lower flue dust and the environmental pollution of deposition in factory building, and post dust concentration is greatly about 5mg/Nm
3in scope, solve the problem of environmental pollution that existing enclosed hood causes, guaranteed staff's physical and mental health.Meanwhile, compact construction of the present invention, safety and environmental protection, operates steadily, and maintenance is little, reduces labour intensity, and operating rate is high, and investment and spare part expense are low.
Claims (5)
1. a novel flue gas dustproof movable enclosed hood device for electric stove, it comprises left and right enclosed hood (2,3), the vertical section of enclosed hood is inverted " L " shape, it is characterized in that: further comprising sealing plate (4); Left enclosed hood (2) is convex, the top on the right side is outwardly with respect to bottom, its with respect to electric furnace (5) for the die cavity of inverted " L " shape be divided into left and right two sections, the die cavity that the die cavity of right section is greater than left section, the right side on left enclosed hood (2) top is provided with sealing member (6), and the crossing face of its left and right die cavity is provided with sealing member (6); Right enclosed hood (3) is spill, and shape is corresponding with left enclosed hood (2), at its spill place, is fixed with a sealing plate (4), and the shape of sealing plate (4) is identical with the cavity shape of right section of left enclosed hood (2), and its undersized is in the size of die cavity; The left side of sealing plate (4) is provided with sealing member (7), right enclosed hood (3) is provided with sealing member (7) with the end face that the right-hand member of sealing plate (4) is connected, when sealing plate (4) all puts in the right segment type chamber of left seal closure (2), the right basifacial plane E of left enclosed hood (2) contacts with the left basifacial plane E ' of right enclosed hood (3), make whole device form the sealing of inside and outside twice contact end face labyrinth shape formula, equitant part is the sealing of scraper plate form.
2. enclosed hood device according to claim 1, is characterized in that: sealing plate (4) is a single piece with right enclosed hood (3).
3. enclosed hood device according to claim 1, is characterized in that: sealing member (6) and sealing member (7) be machicolated form each other.
4. according to the enclosed hood device described in claim 1 or 3, it is characterized in that: on inversion " L " the shape face between the left and right end of sealing plate (4), be provided with four road convex scraper-type seal assemblies (8); Convex scraper-type seal assembly (8) comprises rubber (9), pressing plate (10), and pressing plate (10) is pressed in the both sides of rubber (9), by connecting parts, is fixed on sealing plate (4).
5. enclosed hood device according to claim 4, is characterized in that: the inside of rubber (9) is hollow, and its material is heat-resistant antifriction corrosion resistant compounded rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110151424.4A CN102242236B (en) | 2011-06-08 | 2011-06-08 | Novel smoke-gas dustproof movable seal cover device of electric furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110151424.4A CN102242236B (en) | 2011-06-08 | 2011-06-08 | Novel smoke-gas dustproof movable seal cover device of electric furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102242236A CN102242236A (en) | 2011-11-16 |
| CN102242236B true CN102242236B (en) | 2014-04-23 |
Family
ID=44960479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110151424.4A Expired - Fee Related CN102242236B (en) | 2011-06-08 | 2011-06-08 | Novel smoke-gas dustproof movable seal cover device of electric furnace |
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| Country | Link |
|---|---|
| CN (1) | CN102242236B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006258399A (en) * | 2005-03-18 | 2006-09-28 | Nippon Steel Corp | Opening and closing door of surrounding body for melting furnace |
| CN201183805Y (en) * | 2008-04-28 | 2009-01-21 | 中冶华天工程技术有限公司 | Bidirectional moving combined type smoke dust trapping cover |
| CN101893386A (en) * | 2010-06-24 | 2010-11-24 | 宝钢工程技术集团有限公司 | Enclosed electric furnace hood |
| CN202116583U (en) * | 2011-06-08 | 2012-01-18 | 马钢设计研究院有限责任公司 | Novel flue gas dustproof movable enclosed hood device for electric stove |
-
2011
- 2011-06-08 CN CN201110151424.4A patent/CN102242236B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006258399A (en) * | 2005-03-18 | 2006-09-28 | Nippon Steel Corp | Opening and closing door of surrounding body for melting furnace |
| CN201183805Y (en) * | 2008-04-28 | 2009-01-21 | 中冶华天工程技术有限公司 | Bidirectional moving combined type smoke dust trapping cover |
| CN101893386A (en) * | 2010-06-24 | 2010-11-24 | 宝钢工程技术集团有限公司 | Enclosed electric furnace hood |
| CN202116583U (en) * | 2011-06-08 | 2012-01-18 | 马钢设计研究院有限责任公司 | Novel flue gas dustproof movable enclosed hood device for electric stove |
Non-Patent Citations (2)
| Title |
|---|
| 50吨电炉大型密闭罩的研制与应用;彭善;《工业安全与环保》;19870331(第3期);图1-2，第7-8页 * |
| 彭善.50吨电炉大型密闭罩的研制与应用.《工业安全与环保》.1987,(第3期),图1-2，第7-8页. |
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| Publication number | Publication date |
|---|---|
| CN102242236A (en) | 2011-11-16 |
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| C14 | Grant of patent or utility model | ||
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Owner name: ANHUI MASTEEL ENGINEERING + TECHNOLOGY CO., LTD. Free format text: FORMER NAME: MASTEEL DESIGN + RESEARCH INSTITUTE CO., LTD. Owner name: ANHUI MASTEEL ENGINEERING + TECHNOLOGY GROUP CO., Free format text: FORMER NAME: ANHUI MASTEEL ENGINEERING + TECHNOLOGY CO., LTD. |
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Address after: 243000 Anhui city of Ma'anshan province Ma'anshan economic and Technological Development Zone West Avenue Road No. 259 (fosunny Industrial Park) building the first floor Patentee after: ANHUI MASTEEL ENGINEERING & TECHNOLOGY Co.,Ltd. Address before: 243000 No. 51 Hongqi South Road, Ma'anshan economic and Technological Development Zone, Anhui Patentee before: MASTEEL DESIGN & RESEARCH INSTITUTE Co.,Ltd. Address after: No. 1889 Anhui city of Ma'anshan province Taibai Road 243000 Patentee after: ANHUI MASTEEL ENGINEERING & TECHNOLOGY GROUP Co.,Ltd. Address before: 243000 Anhui city of Ma'anshan province Ma'anshan economic and Technological Development Zone West Avenue Road No. 259 (fosunny Industrial Park) building the first floor Patentee before: Anhui Masteel Engineering & Technology Co.,Ltd. |
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Effective date of registration: 20160623 Address after: 243000 Ma Jian complex, Yushan Road, Ma'anshan, Anhui Patentee after: MAANSHAN IRON & STEEL CONSTRUCTION GROUP Co.,Ltd. Address before: No. 1889 Anhui city of Ma'anshan province Taibai Road 243000 Patentee before: ANHUI MASTEEL ENGINEERING & TECHNOLOGY GROUP Co.,Ltd. |
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| TR01 | Transfer of patent right |
Effective date of registration: 20190906 Address after: No. 1889 Taibai Road 243000 in Anhui province Ma'anshan City Economic and Technological Development Zone Patentee after: ANHUI MASTEEL ENGINEERING & TECHNOLOGY GROUP Co.,Ltd. Address before: 243000 Ma Jian complex, Yushan Road, Ma'anshan, Anhui Patentee before: Maanshan Iron & Steel Construction Group Co.,Ltd. |
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