CN201184745Y - Enclosed calcium carbide furnace cover - Google Patents
Enclosed calcium carbide furnace cover Download PDFInfo
- Publication number
- CN201184745Y CN201184745Y CNU2008200809247U CN200820080924U CN201184745Y CN 201184745 Y CN201184745 Y CN 201184745Y CN U2008200809247 U CNU2008200809247 U CN U2008200809247U CN 200820080924 U CN200820080924 U CN 200820080924U CN 201184745 Y CN201184745 Y CN 201184745Y
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- CN
- China
- Prior art keywords
- bell
- water
- furnace cover
- furnace
- heat
- 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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Abstract
The utility model provides a sealed calcium carbide furnace cover. The furnace cover is structurally characterized in that three electrode sealing ring devices are connected on electrode water-cooling seal sleeves; each electrode water-cooling seal sleeve is welded with four feeding nozzle soleplates and a water-cooling ring; the water-cooling loop is welded with the peripheral water-cooling reinforcing rings of four feeding nozzles; a water-cooling reinforcing ring is welding with the furnace cover top outer ring through reinforcing ribs; arc-shaped pipes are welded at the outer sides of the water-cooling reinforcing rings and between the reinforcing ribs; a plurality of furnace cover feet are welded with the furnace cover top outer ring; two heat-resistant stainless steel screen mesh layers and a heat-resistant threaded round steel reinforcing skeleton disposed therebetween are welded with the connection space of a furnace cover skeleton; heat insulating plates are respectively disposed under the furnace cover feet; furnace frames and furnace doors are uniformly distributed on the furnace cover outer ring, and two chimney seats are laid; furnace cover walls are disposed between the furnace cover feet; a furnace cover seal and heating-insulating protective plate is welded with a furnace wall, and the sealing material is filled between the seal and the heating-insulating protective plate and a refractory wall body; and the refractory concrete is cast on the two layers of heat-resistant stainless steel screen meshes and a heat-resistant threaded round steel reinforcing skeleton disposed therebetween to form the integrated furnace cover. The novel sealed calcium carbide furnace cover can prevent dust from accumulating in a hearth, effectively improve the quality structure of the batch layer, remarkably improve the process operation manner and the labor intensity, and greatly prolong the service life.
Description
Technical field
The utility model relates to technical field of metallurgical equipment, specifically a kind of furnace cover of closed type calcium carbide furnace.
Background technology
At present; at home, external general furnace cover of closed type calcium carbide furnace is to adopt by six intermediate water cold type chucks and the big cover of the branch semi-built-up electrode protection combined type bell that is assembled that makes up; this bell is out of shape owing to the inequality of being heated has on the one hand produced bigger thermal stress; because furnace of calcium carbide recirculated cooling water hardness is higher, it produces a large amount of Ca in the bell chuck
2+, Mg
2+, Fe
2+The unbalanced jacket surface that adheres to of incrustation scales such as ion, because the furnace of calcium carbide recirculated cooling water belongs to the open cycle cooling water, the equipment dirt of bringing into can interact attached to the chuck inwall with incrustation scale, cause chuck water route flow path sectional area constantly to dwindle, to such an extent as to the part water route is blocked, the big cover localized burn of bell and water-cooled, ablation are seriously; This kind bell adopts pyramidal structure on the other hand, and it has dwindled the cushion space of the inner furnace gas of burner hearth greatly.It causes furnace pressure to fluctuate widely and serious material spray easily, and the technological operation and the comparison difficulty of coming out of the stove are heavy then can cause the stove implode, thus the security incident of meeting accident.
Summary of the invention
The purpose of this utility model is to solve the problem that combinations thereof formula bell exists, and provides a kind of and can improve bed of material quality structure, improves technological operation mode and labour intensity significantly, improves the furnace cover of closed type calcium carbide furnace in service life.
Technology side of the present utility model decide on a verdict for: bell constitutes: three electrode seal ring apparatus (1), electrode seal ring apparatus (1) is connected on the electrode water cooled seal cover (2), every electrode water cooled seal cover (2) and four charging nozzle installation seat plates (3) and water-cooled circle (4) welding, adopt the welding of 8 reinforcements (11) support reinforcing between water cooled seal cover (2) and the water-cooled stiffening ring (5), water-cooled circle (4) welds with the peripheral water-cooled stiffening ring (5) of its four charging nozzles, water-cooled stiffening ring (5) is by reinforcement (12) and bell caping outer ring (6) welding, arc pipe (13) is welded between water-cooled stiffening ring (5) outside and the reinforcement (12), a plurality of bell pin (7) are welded on the bell caping outer ring (6), connect empty piece place at the bell skeleton and weld two-layer heat-resistance stainless steel screen cloth and heat-resisting screw thread round steel web frame (10) therebetween, and be lined with heat-insulating shield (9) in bell pin (7) below respectively, on bell caping outer ring (6), be evenly distributed with firedoor frame and fire door (8), and build and make two chimney seats (15), between bell pin (7), build bell wall (17) by laying bricks or stones, at sealing of furnace wall external welding bell and adiabatic heat-insulation protective plate (16), packing matcrial (18) forms complete bell body of wall between sealing and adiabatic heat-insulation protective plate and refractory brick body of wall, connects at skeleton and builds fire-resistant mixed earth formation monoblock type bell on two-layer heat-resistance stainless steel screen cloth in empty piece place and the heat-resisting screw thread round steel web frame (10) therebetween.
Bell is provided with six roots of sensation reinforcement (12), is connected with arc pipe (13) between the reinforcement and strengthens straight tube (14) to support three water-cooled stiffening rings (5).
At chimney seat (15) peace system shoot door (14).
Fire-resistant mixed earth adopts high-alumina fly, 446 type stainless steel steel fibres to strengthen heat resistance concrete, high temperature resistant aggregate, tri-sodium phosphate making, after first three is planted and to stir by 1: 2: 3 part by weight, the tertiary sodium phosphate that adds its weight 15%, add and pour in the template after an amount of water stirs, adopt vibration pump that it is shaken so that it is filled really.
Bell of the present utility model has the following advantages compared with the prior art:
1, makes a cover 25.5MVA closed calcium carbide furnace combination bell and economize on the use of funds about 66.15 ten thousand yuan than existing combined type bell.
2, the furnace gas cushion space significantly increases in the bell stove of the present utility model, thereby for cushioning effect has preferably been played in the constancy fluctuation of furnace pressure, be beneficial to further reinforcement to the operation of stove control and for the heavy-duty service of stove provides advantageous conditions, also provide better guarantees simultaneously for stable, high-quality, high yield, the low consumption of stove.By the actual production effect, 3361.2 degree before its average electric consumption of producing ton standard calcium carbide of improved stove is never transformed are reduced to 3106 degree, about 230.7 degree of saves energy, if words by 0.45 yuan of every degree electricity, then can save 103.8 yuans, by 4.5 ten thousand tons of the designed annual production capacities of the type stove, but 467.1675 ten thousand yuans of using electricity wisely in every year costs then.
3, bell cooling water amount of the present utility model can be saved 2/3rds consumption, its waste heat boiler extracts furnace gas burning and quantity of steam many about 15% that the existing combined type bell of quantity of steam that produces is produced, simultaneously, after furnace gas discharge throat moves outward, avoided the furnace gas dust to fall in the stove, thereby improved the charge level structure effectively, significantly promoted way load and quality, output.
Brand-new closed type calcium carbide furnace bell of the present utility model has not only been avoided the existing defect problem of existing combined type bell, can avoid dust accretions in burner hearth, bed of material quality structure be can effectively improve, technological operation mode and labour intensity improved significantly.Analyze by the ANSYS finite element modelling, improved service life greatly.
Description of drawings
Fig. 1 is the front view of the utility model bell;
Fig. 2 is the vertical view of the utility model bell.
Among the figure, 1-electrode seal ring apparatus, 2-electrode water cooled seal cover, 3-charging nozzle installation seat plate, 4-water-cooled circle, the peripheral water-cooled stiffening ring of 5-, 6-caping outer ring, 7-bell pin, 8-firedoor frame and fire door, the fire-resistant organosilicon mica of 9-heat-insulating shield, the 10-web frame, 11-reinforcement, 12-reinforcement, 13-arc pipe, 14-shoot door, 15-chimney seat, the 16-protective plate, 17-bell wall, 18-encapsulant.
The specific embodiment
Embodiment: as Fig. 1, shown in 2, bell of the present utility model constitutes: three electrode seal ring apparatus 1 are arranged, the electrode seal ring apparatus is used to seal furnace gas, preventing that furnace gas from prolonging leaps up on its electrode column and the air catalytic combustion, electrode seal ring apparatus 1 is connected in the nonmagnetic steel thick-walled seamless steel pipes by the flange bolt ways of connecting and rolls on the electrode water cooled seal cover 2 that forms, the mode of every electrode water cooled seal cover 2 by welding is with four charging nozzle installation seat plates and roll the water-cooled circle 4 that forms with the nonmagnetic steel thick-walled seamless steel pipes and weld, water-cooled circle 4 is used to cool off the charging nozzle installation seat plate, water-cooled circle 4 rolls water-cooled stiffening ring 5 welding that form by mode and its four charging nozzles peripheries of welding with the nonmagnetic steel thick-walled seamless steel pipes, the reinforcement 12 and bell caping outer ring 6 solder joint of water-cooled stiffening ring 5 by making with seamless heavy wall carbon steel pipes, adopt seamless heavy wall carbon steel straight steel pipe and bend arc pipe 13 and be welded between water-cooled stiffening ring 5 outsides and the reinforcement 12, six bell pin 7 adopt the mode of welding to be welded on the bell caping outer ring, below 6 corresponding with six roots of sensation reinforcement 12, connect empty piece place at the bell skeleton and weld two-layer heat-resistance stainless steel screen cloth and heat-resisting screw thread round steel web frame 10 therebetween, after the skeleton welding finishes it is moved to directly over the burner hearth, and below six pin 7, be lined with fire-resistant organosilicon mica heat-insulating shield 9 respectively, peace 60 degree position distribution have six firedoor frames and fire door 8 on bell caping outer ring 6, and build respectively and make two chimney seats 15, at chimney seat 15 peace system shoot doors 14, between six pin 7, build bell wall 17 by laying bricks or stones, roll the arc plate that forms at furnace wall external welding employing steel plate and form bell sealing and adiabatic heat-insulation protective plate 16, packing matcrial 18 and form complete bell body of wall between sealing and adiabatic heat-insulation protective plate and refractory brick body of wall, connect on two-layer heat-resistance stainless steel screen cloth in empty piece place and therebetween the heat-resisting screw thread round steel web frame 10 at skeleton and to build fire-resistant mixed earth, constitute the monoblock type bell thus.
Claims (3)
1, a kind of furnace cover of closed type calcium carbide furnace, it is characterized in that constituting of bell: three electrode seal ring apparatus (1), electrode seal ring apparatus (1) is connected on the electrode water cooled seal cover (2), every electrode water cooled seal cover (2) and four charging nozzle installation seat plates (3) and water-cooled circle (4) welding, water-cooled circle (4) welds with the peripheral water-cooled stiffening ring (5) of its four charging nozzles, water-cooled stiffening ring (5) is by reinforcement (12) and bell caping outer ring (6) welding, arc pipe (13) is welded between water-cooled stiffening ring (5) outside and the reinforcement (12), a plurality of bell pin (7) are welded on the bell caping outer ring (6), connect empty piece place at the bell skeleton and weld two-layer heat-resistance stainless steel screen cloth and heat-resisting screw thread round steel web frame (10) therebetween, and be lined with heat-insulating shield (9) in bell pin (7) below respectively, on bell caping outer ring (6), be evenly distributed with firedoor frame and fire door (8), and build and make two chimney seats (15), between bell pin (7), build bell wall (17) by laying bricks or stones, at sealing of furnace wall external welding bell and adiabatic heat-insulation protective plate (16), packing matcrial (18) forms complete bell body of wall between sealing and adiabatic heat-insulation protective plate and refractory brick body of wall, connects at skeleton and builds fire-resistant mixed earth formation monoblock type bell on two-layer heat-resistance stainless steel screen cloth in empty piece place and the heat-resisting screw thread round steel web frame (10) therebetween.
2, according to the described furnace cover of closed type calcium carbide furnace of claim 1, it is characterized in that bell is provided with six roots of sensation reinforcement (12), be connected with arc pipe (13) between the reinforcement to support three water-cooled stiffening rings (5).
3,, it is characterized in that at chimney seat (15) peace system shoot door (14) according to the described furnace cover of closed type calcium carbide furnace of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200809247U CN201184745Y (en) | 2008-03-03 | 2008-03-03 | Enclosed calcium carbide furnace cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200809247U CN201184745Y (en) | 2008-03-03 | 2008-03-03 | Enclosed calcium carbide furnace cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201184745Y true CN201184745Y (en) | 2009-01-21 |
Family
ID=40272484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200809247U Expired - Lifetime CN201184745Y (en) | 2008-03-03 | 2008-03-03 | Enclosed calcium carbide furnace cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201184745Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102374785A (en) * | 2011-10-21 | 2012-03-14 | 大连华锐股份有限公司 | Furnace cover device used for semi-closed submerged arc furnace |
| CN108050840A (en) * | 2017-11-07 | 2018-05-18 | 内蒙古君正化工有限责任公司 | A kind of Fesi Furnace bell inner ring water-cooling framework |
-
2008
- 2008-03-03 CN CNU2008200809247U patent/CN201184745Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102374785A (en) * | 2011-10-21 | 2012-03-14 | 大连华锐股份有限公司 | Furnace cover device used for semi-closed submerged arc furnace |
| CN102374785B (en) * | 2011-10-21 | 2013-04-10 | 大连华锐重工集团股份有限公司 | Furnace cover device used for semi-closed submerged arc furnace |
| CN108050840A (en) * | 2017-11-07 | 2018-05-18 | 内蒙古君正化工有限责任公司 | A kind of Fesi Furnace bell inner ring water-cooling framework |
| CN108050840B (en) * | 2017-11-07 | 2019-06-18 | 内蒙古君正化工有限责任公司 | A kind of Fesi Furnace bell inner ring water-cooling framework |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20090121 Effective date of abandoning: 20080303 |