CN202141324U - Improved furnace bottom of walking beam type heating furnace - Google Patents
Improved furnace bottom of walking beam type heating furnace Download PDFInfo
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- CN202141324U CN202141324U CN 201120163205 CN201120163205U CN202141324U CN 202141324 U CN202141324 U CN 202141324U CN 201120163205 CN201120163205 CN 201120163205 CN 201120163205 U CN201120163205 U CN 201120163205U CN 202141324 U CN202141324 U CN 202141324U
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- heating
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Abstract
An improved furnace bottom of a walking beam type heating furnace belongs to the technical field of rolled steel equipment, is used for reducing scale which is generated in the production of a slab heating furnace and accumulated at the bottom of the furnace, and adopts the technical scheme that a furnace bottom steel structure, a slag scraping mechanism, and a furnace bottom refractory material are comprised. The furnace bottom is formed by a plurality of furnace bottom bulges higher in the middle and lower at the periphery, and the bulges are in vertical or horizontal arrangement; and the edges of the furnace bottom bulges are respectively positioned among a plurality of furnace bottom walking beams and among a plurality of furnace bottom openings of each walking beam. The furnace bottom bulges are made from refractory material through casting. The utility model solves the problem that the scale generated in the production of the slab heating furnace accumulates at the furnace bottom, so as to reduce the phenomenon of non-uniform slab heating caused by the accumulated scale at the furnace bottom, which shields flames of burners, further improve the heating quality of the slab, reduce frequency of furnace shutdown for cleaning the scale, and at last achieve the purposes of reducing abnormal furnace shutdown frequency, lowering energy source consumption, and playing the benefits of the heating furnace to the utmost extent.
Description
Technical field
The utility model relates to a kind of bottom construction of stepping beam type heater for rolling steel, belongs to the steel rolling equipment technical field.
Background technology
Steel billet inevitably will produce iron scale on its surface in heating process, the amount of oxidation loss of steel billet and fire box temperature, furnace atmosphere are relevant with the steel billet time inside furnace.In general, the temperature of heating furnace is high more, the slab time inside furnace is long more, and the iron scale that slab is generated in the stove is just many more.Especially the bar plate heating stove on the hot-rolled strip production line; Because the steel billet tapping temperature of technological requirement is more than 1150 ℃; Therefore the fire box temperature of heating furnace generally maintains 1250 ℃ ~ 1350 ℃; And the time inside furnace of slab often will surpass 100 minutes, and therefore, the oxidization burning loss of slab will surpass the oxidization burning loss of excellent line steel billet.In heating furnace, the iron sheet of slab lower surface drops in the stove gradually, and is deposited in furnace bottom, and surpasses the center line height of lower furnace portion burner very soon, and the flame of bottom burner has been played the effect of covering, and has influenced the heat-transfer effect of lower floor's flame.Steel rolling process requires the temperature difference on the common direction of slab to be controlled in 30 ℃ in the production, but because the influence of furnace bottom iron sheet, the temperature difference with two ends in the middle of the slab increases gradually, has surpassed technological requirement.In order to guarantee the heating quality of slab, heating furnace often go into operation less than half a year will the blowing out scarfing cinder, the iron scale of piling up at the bottom of the heating-furnace has become a key factor that influences output, quality on the steel rolling production-line.Therefore, both at home and abroad the strip production line generally all is equipped with the heating furnace more than 3, is used for the production of whole processing line between balance heating furnace scarfing cinder turn(a)round.
The utility model content
The utility model technical problem to be solved provides and a kind ofly can reduce the improved walking beam heating furnace furnace bottom that iron scale that bar plate heating stove produced is aborning piled up at furnace bottom.
The technical scheme that solves the problems of the technologies described above is:
A kind of improved walking beam heating furnace furnace bottom; Comprise the furnace bottom steel construction; Slag scraping mechanism and bottom refractory are built by laying bricks or stones; Its improvements are, its furnace bottom is rearranged by the protruding vertical and horizontal of furnace bottoms low around high in the middle of a plurality of, the protruding edge of these furnace bottoms lay respectively between a plurality of furnace bottom step rates and a plurality of furnace bottom perforates of every step rate between.
[0005]Above-mentioned improved walking beam heating furnace furnace bottom; Said furnace bottom convexity is by insulating; The lightening casting bed of material, anti-slag pours working lining and a plurality of furnace bottom beam hanging tube, anchoring hook, anchored brick are formed; A plurality of furnace bottom beam hanging tubes are uniformly distributed with on the furnace bottom steel construction, and anchoring hook one end hangs on the furnace bottom beam hanging tube, and the other end is connected with anchored brick; Insulating, the lightening casting bed of material and anti-slag pours working lining be cast from bottom to top successively, and furnace bottom connects beam hanging tube, anchoring hook, anchored brick and is arranged in pouring layer.
Above-mentioned improved walking beam heating furnace furnace bottom, said anchoring hook adopt Z type structure, and anchored brick is the column of rectangle, and there are a plurality of grooves and projection in the surface.
Above-mentioned improved walking beam heating furnace furnace bottom, the peak of said furnace bottom convexity are between two furnace bottom perforates, and the protruding peak of furnace bottom is lower than the center line of heating furnace bottom burner spout.
The usefulness of the utility model is:
1, furnace bottom seldom has iron scale to pile up, and the iron sheet from the steel billet lower surface drops directly is slipped in the water sealed tank along the protruding inclined-plane of furnace bottom, is taken out of outside the stove by slag scraping mechanism, so the heating furnace lower furnace has the suitable heating space always.
2, the heating quality of slab is more stable; Because the heating furnace lower furnace does not have iron scale in heaps; Therefore the flame of the lower floor's burner shape that can always keep relative stability; Thereby guaranteed slab in heating process, can control temperature approach within zone of reasonableness, and can not cause accumulation to cause the slab temperature difference periodically to change owing to iron sheet.
3, reduced blowing out cleaning iron sheet number of times, finally reached and reduce improper blowing out number of times, reduce energy resource consumption, bring into play the purpose of heating furnace benefit to greatest extent.
Description of drawings
Fig. 1 is the cross-sectional schematic of the utility model along the furnace superintendent direction;
Fig. 2 is the cross-sectional schematic of the utility model along the stove cross direction.
Mark is following among the figure: heating furnace side wall 1, heating furnace furnace roof 2, furnace bottom convexity 3, furnace bottom steel construction 4, slag scraping mechanism 5, furnace bottom perforate 6, insulating 7, the lightening casting bed of material 8, anti-slag pours working lining 9, furnace bottom beam hanging tube 10, anchoring hook 11, anchored brick 12, heating furnace bottom burner 13, step rate and built-in beam 14, slab 15.
The specific embodiment
The utility model is the basis with furnace bottom steel construction 4; Pouring fireproof material on furnace bottom steel construction 4; Building the furnace bottom after accomplishing by laying bricks or stones, no longer is the shape on plane, but forms in the middle of a plurality of at the bottom of the uphill furnaces low around high protruding 3; These furnace bottoms protruding 3 are being that the furnace bottom perforate 6 that the step rate operation is reserved is a minimum point on the furnace bottom steel construction 4; With the center between two furnace bottom perforates 6 is peak, and width and length direction at the bottom of heating-furnace are arranged respectively, have finally formed protruding 3 structures of a plurality of furnace bottoms that vertical and horizontal are arranged at furnace bottom.The iron scale that produces in the billet heating furnace process like this is when the steel billet lower surface drops; Can drop on the furnace bottom protruding 3; Because the effect of gravity, iron sheet then can be slipped to minimum point along the inclined-plane of furnace bottom protruding 3, and the minimum point of furnace bottom protruding 3 is to stay the furnace bottom perforate 6 of establishing for the step rate operation; The water sealed tank slag scraping mechanism 5 of moulding is installed in the furnace bottom perforate 6; The iron sheet that this cover slag scraping mechanism 5 will be fallen into water sealed tank is directly taken out of outside the stove, reaches and reduces the accumulation of iron sheet at furnace bottom, guarantees no longer to pile up iron sheet at the bottom of the heating furnace.
A walking beam type plate blank heating furnace generally has 4 ~ 6 step rates; Be furnished with ten or more perforates respectively according to the difference of walking-beam furnace length again on every step rate; All have slag scraping mechanism 5 in every step rate, each perforate; This uniform layout can all be taken the iron scale of landing outside the stove out of.
Show among the figure that the furnace bottom of the utility model protruding 3 is by insulating 7, the lightening casting bed of material 8 and anti-slag pours working lining 9 also comprise furnace bottom beam hanging tube 10, anchoring hook 11, anchored brick 12 etc. simultaneously.
Show among the figure; Furnace bottom beam hanging tube 10 is evenly arranged on steel plate of furnace hearth according to certain distance, arranges that the furnace bottom perforate 6 with the furnace bottom step rate is the center, and anchoring hook 11 1 ends hang on the furnace bottom beam hanging tube 10; The other end is connected with anchored brick 12; After connecting like this, anchored brick 12 and furnace bottom steel construction 4 in opposite directions thirty years of age is upside down on the anchoring hook 11.
Show among the figure; Insulating 7 according to certain angle be filled in anchored brick around; The lightening casting bed of material 8 is cast on the insulating 7, and anti-slag pours working lining 9 is cast on the lightening casting bed of material 8 according to certain thickness, and this is the working lining of tilting furnace bottom protruding 3.The top of anchored brick 12 is embedded in the anti-slag pours working lining 9; And arrive the top of anti-slag pours working lining 9 always; Thereby play the effect of fixing anti-slag pours working lining 9; Guaranteeing it can stablize, and accidents such as piece can not occur ftractureing, fall at production period, guarantees final result of use.
Show among the figure; Furnace bottom perforate 6 is minimum points of whole tilting furnace bottom, is the peak of whole furnace bottom protruding 3 between two furnace bottom perforates 6, therefore in heating furnace work; Protruding 3 hull-skin temperatures of furnace bottom are the highest, and rational anti-equipment structure and thickness can guarantee that the furnace bottom heat dissipation capacity is minimum.Anchored brick 12 layouts and frame mode can support the weight of whole furnace bottom, and this also is the key of protruding 3 steady operations of furnace bottom.The peak of furnace bottom protruding 3 will be lower than the center line of heating furnace bottom burner 13 spouts, and flame can not covered in top, protruding 3 slope of assurance furnace bottom, guarantees heating furnace bottom burner 13 steady operations, and its work reaches the best.The formed fixed angle of protruding 3 highs and lows of furnace bottom; Guarantee to slip in the furnace bottom perforate 6 smoothly when iron scale drops; Thereby take out of outside the stove by heating furnace slag scraping mechanism 5, rather than be deposited in the surface of oblique furnace bottom, do not have the effect that reduces the furnace bottom iron sheet.Furnace bottom protruding 3 is formed domatic by highs and lows, and the flame that heating furnace bottom burner 13 is generated can play the diffusion effect, helps the temperature of even slab 15 lower surfaces.
In an embodiment of the utility model, anchored brick 12 is the column of a rectangle, and the surface comprises some grooves and projection, has increased the contact area of anchored brick 12 with the lightening casting bed of material 8 and anti-slag pours working lining 9, increases bonding strength.11 on anchoring hook is to adopt Z type structure, thereby anchored brick 12 and furnace bottom anchoring hook 11 are connected together.Furnace bottom beam hanging tube 10 is welded on the furnace bottom steel construction 4; Aborning; Therefore furnace bottom steel construction 4 is different with the swell increment of anti-slag pours working lining 9 after being heated, and will reserve suitable swell increment when welding, the swell increment in the time of also will stopping anti-slag pours working lining 9 work simultaneously.
Claims (4)
1. improved walking beam heating furnace furnace bottom; Comprise furnace bottom steel construction (4); Slag scraping mechanism (5) and bottom refractory are built by laying bricks or stones; It is characterized in that: its furnace bottom is rearranged by protruding (3) vertical and horizontal of furnace bottoms low around high in the middle of a plurality of, the edge of these furnace bottoms protruding (3) lay respectively between a plurality of furnace bottom step rates and a plurality of furnace bottom perforates (6) of every step rate between.
2. improved walking beam heating furnace furnace bottom according to claim 1; It is characterized in that: said furnace bottom protruding (3) is by insulating (7); The lightening casting bed of material (8), anti-slag pours working lining (9) and a plurality of furnace bottom beam hanging tubes (10), anchoring hook (11), anchored brick (12) are formed; A plurality of furnace bottom beam hanging tubes (10) are uniformly distributed with on furnace bottom steel construction (4), and anchoring hook (11) one ends hang on the furnace bottom beam hanging tube (10), and the other end is connected with anchored brick (12); Insulating (7), the lightening casting bed of material (8) and anti-slag pours working lining (9) be cast from bottom to top successively, and furnace bottom connects beam hanging tube (10), anchoring hook (11), anchored brick (12) and is arranged in pouring layer.
3. improved walking beam heating furnace furnace bottom according to claim 1 and 2 is characterized in that: said anchoring hook (11) adopts Z type structure, and anchored brick (12) is the column of rectangle, and there are a plurality of grooves and projection in the surface.
4. improved walking beam heating furnace furnace bottom according to claim 3 is characterized in that: the peak of said furnace bottom protruding (3) is between two furnace bottom perforates (6), and the peak of furnace bottom protruding (3) is lower than the center line of heating furnace bottom burner (13) spout.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120163205 CN202141324U (en) | 2011-05-20 | 2011-05-20 | Improved furnace bottom of walking beam type heating furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120163205 CN202141324U (en) | 2011-05-20 | 2011-05-20 | Improved furnace bottom of walking beam type heating furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202141324U true CN202141324U (en) | 2012-02-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120163205 Expired - Lifetime CN202141324U (en) | 2011-05-20 | 2011-05-20 | Improved furnace bottom of walking beam type heating furnace |
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| Country | Link |
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| CN (1) | CN202141324U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103017516A (en) * | 2013-01-06 | 2013-04-03 | 莱芜钢铁集团有限公司 | Walking beam reheating furnace |
| CN105352326A (en) * | 2015-12-14 | 2016-02-24 | 芜湖新兴铸管有限责任公司 | Slag removing structure of walking beam furnace |
| CN106907923A (en) * | 2015-12-22 | 2017-06-30 | 中国二十冶集团有限公司 | Walking beam type plate blank heating furnace quickly renovates method |
| CN111664710A (en) * | 2020-06-19 | 2020-09-15 | 安徽工业大学 | Metal oxidation waste online cleaning system and control method thereof |
| CN114273599A (en) * | 2020-12-29 | 2022-04-05 | 山东恒力源精密机械制造有限公司 | Bolt type round steel heating furnace |
-
2011
- 2011-05-20 CN CN 201120163205 patent/CN202141324U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103017516A (en) * | 2013-01-06 | 2013-04-03 | 莱芜钢铁集团有限公司 | Walking beam reheating furnace |
| CN103017516B (en) * | 2013-01-06 | 2015-04-15 | 莱芜钢铁集团有限公司 | Walking beam reheating furnace |
| CN105352326A (en) * | 2015-12-14 | 2016-02-24 | 芜湖新兴铸管有限责任公司 | Slag removing structure of walking beam furnace |
| CN106907923A (en) * | 2015-12-22 | 2017-06-30 | 中国二十冶集团有限公司 | Walking beam type plate blank heating furnace quickly renovates method |
| CN111664710A (en) * | 2020-06-19 | 2020-09-15 | 安徽工业大学 | Metal oxidation waste online cleaning system and control method thereof |
| CN114273599A (en) * | 2020-12-29 | 2022-04-05 | 山东恒力源精密机械制造有限公司 | Bolt type round steel heating furnace |
| CN114273599B (en) * | 2020-12-29 | 2024-03-19 | 山东恒力源精密机械制造有限公司 | Bolt type round steel heating furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 063016 Binhe Road, Hebei, Tangshan City, No. 9 Patentee after: River steel Limited by Share Ltd Tangshan branch Address before: 063016 Binhe Road, Hebei, Tangshan City, No. 9 Patentee before: Hebei Steel Co., Ltd., Tangshan Branch |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120208 |