CN202885495U - Cupola furnace hot wind furnace container - Google Patents
Cupola furnace hot wind furnace container Download PDFInfo
- Publication number
- CN202885495U CN202885495U CN 201220355630 CN201220355630U CN202885495U CN 202885495 U CN202885495 U CN 202885495U CN 201220355630 CN201220355630 CN 201220355630 CN 201220355630 U CN201220355630 U CN 201220355630U CN 202885495 U CN202885495 U CN 202885495U
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- furnace container
- wind
- flue
- container
- cupola
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Abstract
The utility model discloses a cupola furnace hot wind furnace container which is divided into an upper-section furnace container and a lower-section furnace container. Both the upper-section furnace container and the lower-section furnace container are composed of outer cylinders and inner cylinders. End face connecting positions of the upper-section furnace container and the lower-section furnace container are connected into a whole through flanges. A wind inlet is formed in the upper portion of the outer cylinder of the upper-section furnace container, a wind outlet is formed in the lower portion of the lower-section furnace container, and cooling fins are arranged on the outer walls of the inner cylinder. The cupola furnace hot wind furnace container is characterized in that the inner cylinders are integral cast steel pieces with the flanges, the outer cylinders wrap the inner cylinders to form annular cavity bodies, annular partition plates are horizontally arranged inside the annular cavity bodies, a through hole is respectively formed in the annular partition plates and the flange connecting position between the upper-section furnace container and the lower-section furnace container, wherein the through holes correspond to the annular cavities, and diversion partition boards are arranged on one sides of through holes below the annular partition boards lengthwise. Due to the fact that the inner cylinders are the integral cast steel pieces, the cupola furnace hot wind furnace container is long in service life. The arrangement of an annular wind channel enables the flow path of wind to be lengthened, the heat exchange time of the wind and the wall faces of the inner cylinders and the cooling fins is long, the temperature of the wind can be increased to 240 DEG C, and service life and heat exchanging efficiency are obviously improved.
Description
Technical field
The utility model belongs to the improvement of hot-blast stove in the smelting equipment field of metal, is specifically related to a kind of hot-air lining for cupola.
Background technology
Furnace cupola is the most frequently used equipment of Castiron Melting, and the key index that indicates this equipment working condition is the ignition temperature in the stove, temperature and the service life of outflow molten iron.Certainly these indexs are subject to the impact of factors, and the quality of Melting Quality directly has influence on the quality of casting quality, and wherein adopting flue preheating air feed is one of effective measures of strengthening cupola melting.The general close muscle hot-blast stove chamber that is consisted of by urceolus and inner core that adopts of Medium-and Small-sized Cupola, the means of Energy Conservation high thermal efficiency, its advantage is not need the external energy, utilize the burner gas residual heat of preheating zone to absorb by hot-blast stove chamber, the preheating air intake is brought up to wind-warm syndrome about 180 ℃, thereby coke burning in the reinforcement furnace cupola, improve melting efficiency and casting coolant-temperature gage, reduce burnt consumption, energy savings." foundry engieering " the 1st phase according to publication in 1993 is introduced, and 250 ℃ of hot blasts are compared with cold wind and can be reduced burnt consumption 20%, and melting rate also simultaneously can improve 25%, keeps former Jiao molten iron temperature consuming time and can improve 40 ℃.But the inner core of close muscle hot-blast stove chamber is rolled into tubular with steel plate usually, and flange is welded up and down, limited by processing conditions, can not select too thick steel plate (not turning over the limit), usually selects 10mm～12mm steel plate.The inner core use procedure is subjected to Effect of Hyperthermic Environment, and weld cracking, bulge, burn through event often occur, and service life is short to be its conspicuous contradiction.In addition, the air inlet of former furnace cupola is to the flue ringless-type baffle plate diversion of air outlet, causes entering that the cold air of flue is very fast just discharges from air outlet, and heat transfer path is short, is unfavorable for taking full advantage of of heat in the flue.
Summary of the invention
The purpose of this utility model is exactly in order to address the above problem, and provides a kind of and can improve hot blast temperature, can improve again the hot-air lining for cupola in service life.
Solution of the present utility model is as follows: a kind of hot-air lining for cupola, be divided into epimere flue and hypomere flue, epimere flue and hypomere flue consist of by urceolus and inner core, its end face junction is connected as a single entity by ring flange, the top of epimere flue urceolus is provided with air inlet, the bottom of hypomere flue urceolus is provided with air outlet, inner tank theca is provided with fin, it is characterized in that: inner core is the integral cast steel spare of flanged dish, urceolus parcel inner core, the looping cavity, horizontally set toroidal membrane in annular housing, toroidal membrane and upper-lower section flue ring flange junction respective chamber are provided with a through hole, and through hole one side vertically is provided with diaphragm below toroidal membrane.
The wall thickness of described integral cast steel spare inner core is 40mm～65mm.
Fin on the described inner tank theca is for vertically being crisscross arranged.Increase fin and air intake contact area, heat exchange is more abundant.
Upper and lower section flue ring flange of the utility model junction is bolted connection, and the slit seals with insulation material (such as asbestos) between the ring flange.Upper and lower section flue is installed on position, furnace cupola preheating zone, is connected with air blast and can uses.Add the raw materials such as coke, the pig iron, alloy from furnace roof, flow from top to bottom along annular passage from the air blast on top, carry out heat exchange with the fin that arranges in the air channel, thereby improve wind-warm syndrome, enter burner hearth.
The utility model compared with prior art obtains beneficial effect and is: described inner core is integral cast steel spare, and wall thickness is 40mm～65mm, high temperature resistant erosion, long service life; The setting of annular passage is elongated the flow path of wind, and the wall of wind and inner core and fin heat exchanger time are long, and preheat temperature can increase substantially; Implement proof, service life and heat exchanger effectiveness significantly improve after the hot-blast stove chamber transformation, and wind-warm syndrome can be increased to 240 ℃, and energy-saving effect is obvious, and tapping temperature is high, improved casting quality.
Description of drawings
Fig. 1 is the structure chart of the utility model hot-air lining for cupola.
Fig. 2 is that the A-A of Fig. 1 is to view.
Among the figure: 1, air inlet, 2, urceolus, 3, ring flange, 4, through hole, 5, inner core, 6, air outlet, 7, fin, 8, toroidal membrane, 9, diaphragm.
The specific embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.Referring to Fig. 1 and Fig. 2, a kind of hot-air lining for cupola, be divided into epimere flue and hypomere flue, epimere flue and hypomere flue consist of by urceolus 2 and inner core 5, its end face junction is connected as a single entity by ring flange 3, the top of epimere flue urceolus 2 is provided with air inlet, and the bottom of hypomere flue urceolus 2 is provided with air outlet 6, and inner core 5 outer walls are provided with fin 7.It is characterized in that: inner core 5 is the integral cast steel spare of flanged dish 3, urceolus 2 parcel inner cores 5, looping cavity between the inwall of the outer wall of inner core 5 and urceolus 2, horizontally set toroidal membrane 8 in annular housing, toroidal membrane 8 and upper-lower section flue ring flange 3 junction respective chamber are provided with a through hole 4, and a side of through hole 4 vertically is provided with diaphragm 9 below toroidal membrane 8.The wall thickness of described integral cast steel spare inner core 5 is 40mm～65mm.Fin 7 on described inner core 5 outer walls is for vertically being crisscross arranged.
A most preferred embodiment of the present utility model is referring to Fig. 1 and Fig. 2, a kind of hot-air lining for cupola, be divided into epimere flue and hypomere flue, epimere flue and hypomere flue consist of by urceolus 2 and inner core 5, and inner core 5 places in the urceolus 2, the top of epimere flue urceolus 2 is provided with an air inlet 1, and the bottom of hypomere flue urceolus 2 is provided with the air outlet 6 of two symmetries.Inner core 5 flanged dishes 3 adopt the molten steel integral cast to form, and the ring flange 3 of upper-lower section flue inner core 5 end faces will be done greatly during casting, extend to outside the urceolus 2, and like this, the corresponding good ring flange 3 of upper-lower section flue just can connect with bolt.Should also be noted that during casting that cavity position, upper-lower section inner core 5 ring flanges, 3 junction correspondence leaves a through hole 4, the effect of through hole 4 is to make the up and down cavity of inner core 5 and urceolus 2 gap locations build a passage, is convenient to the wind direction current downflow.The wall thickness of integral cast steel spare inner core 5 is 40mm～65mm, and optimum wall thickness is 50mm, and is durable.The annular housing that consists of between the inwall of the outer wall of inner core 5 and urceolus 2 from top to bottom according to the stove size at least transverse weld be provided with twice toroidal membrane 8.
The present embodiment is provided with four road toroidal membranes 8, the toroidal membrane 8 that arranges between the inwall of the outer wall of inner core 5 and urceolus 2, also be provided with a through hole 4, side at toroidal membrane 8 vertically is provided with diaphragm 9, consist of top-down annular passage by diaphragm 9 between the toroidal membrane 8, the guiding of being convenient to wind flows.Welding fin 7,1～3 rows vertically are crisscross arranged on the outer wall of inner core 5, increase fin 7 and air intake contact area.The height of fin 7 is 2/3rds of inner core 5 and urceolus 2 gaps, avoids windage excessive, affects the burner hearth intake.
The cold wind that enters hot-air lining for cupola during use enters from the air inlet 1 of epimere flue, shown in Fig. 1 arrow, along urceolus 2, the annular passage that the toroidal membrane 8 that arranges between the inner core 5 consists of flows, out, the through hole 4 that arranges from toroidal membrane 8 belows again enters lower one deck annular passage, wind also will flow to the hypomere flue by the through hole 4 on the ring flange 3 from the epimere flue during this time, under diaphragm 9 effects, wind flows at last the orlop annular passage of hypomere flue and flows out from air outlet 6, make the inner core 5 of whole hot-blast stove chamber and the annular passage of 2 formations of urceolus similar " spiral ", the wall of wind and inner core 5 and fin 7 heat exchanges, flow process and the heat exchanger time of wind are long, and the thermal efficiency improves significantly.Make hot blast temperature can reach 240 ℃, tapping temperature up to 1400 ℃, 5 service lifes of inner core are more than 10 years.
What more than enumerate only is a specific embodiment of the present utility model.Obviously, be not limited to above embodiment, many shapes that similarly change can also be arranged.All distortion that those of ordinary skill in the art can directly derive or associate from the disclosed content of the utility model all should be thought protection domain of the present utility model.
Claims (3)
1. hot-air lining for cupola, be divided into epimere flue and hypomere flue, epimere flue and hypomere flue consist of by urceolus and inner core, its end face junction is connected as a single entity by ring flange, the top of epimere flue urceolus is provided with air inlet, the bottom of hypomere flue urceolus is provided with air outlet, inner tank theca is provided with fin, it is characterized in that: inner core is the integral cast steel spare of flanged dish, urceolus parcel inner core, looping cavity, horizontally set toroidal membrane in annular housing, toroidal membrane and upper-lower section flue ring flange junction respective chamber are provided with a through hole, and through hole one side vertically is provided with diaphragm below toroidal membrane.
2. a kind of hot-air lining for cupola according to claim 1, it is characterized in that: the wall thickness of described integral cast steel spare inner core is 40mm～65mm.
3. a kind of hot-air lining for cupola according to claim 1, it is characterized in that: the fin on the described inner tank theca is for vertically being crisscross arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220355630 CN202885495U (en) | 2012-07-23 | 2012-07-23 | Cupola furnace hot wind furnace container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220355630 CN202885495U (en) | 2012-07-23 | 2012-07-23 | Cupola furnace hot wind furnace container |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202885495U true CN202885495U (en) | 2013-04-17 |
Family
ID=48076916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220355630 Withdrawn - After Issue CN202885495U (en) | 2012-07-23 | 2012-07-23 | Cupola furnace hot wind furnace container |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202885495U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102735046A (en) * | 2012-07-23 | 2012-10-17 | 新余钢铁集团有限公司 | Hot air furnace pipe for cupola furnace |
-
2012
- 2012-07-23 CN CN 201220355630 patent/CN202885495U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102735046A (en) * | 2012-07-23 | 2012-10-17 | 新余钢铁集团有限公司 | Hot air furnace pipe for cupola furnace |
| CN102735046B (en) * | 2012-07-23 | 2014-08-27 | 新余钢铁集团有限公司 | Hot air furnace pipe for cupola furnace |
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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: 20130417 Effective date of abandoning: 20140827 |
|
| RGAV | Abandon patent right to avoid regrant |