CN102925608A - High-air temperature hot-air furnace with high-temperature flue and high-temperature smoke gas current equalizer - Google Patents
High-air temperature hot-air furnace with high-temperature flue and high-temperature smoke gas current equalizer Download PDFInfo
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- CN102925608A CN102925608A CN2012104857522A CN201210485752A CN102925608A CN 102925608 A CN102925608 A CN 102925608A CN 2012104857522 A CN2012104857522 A CN 2012104857522A CN 201210485752 A CN201210485752 A CN 201210485752A CN 102925608 A CN102925608 A CN 102925608A
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Abstract
The invention relates to a high-air temperature hot-air furnace with a high-temperature flue and a high-temperature smoke gas current equalizer. The smoke gas current equalizer is arranged at the middle and lower part of a heat storage chamber at the lower end in a hot-air furnace body, the smoke gas current equalizer is communicated with an outlet of the high-temperature flue, and the outlet of the high-temperature flue is connected with a first heat exchanger through a high-temperature smoke gas pipeline; the smoke gas current equalizer comprises a high-temperature flue loop communicated with the outlet of the high-temperature flue, the high-temperature flue is arranged on the inner side of the high-temperature flue loop, a smoke mouth group is formed on the high-temperature flue, and the high-temperature smoke gas current equalizer is increased at the middle and lower part of the heat storage chamber of the existing hot-air furnace. When the hot-air furnace is used for heating and burning, as the high-temperature smoke gas current equalizer is arranged at the middle and lower part of the heat storage chamber, hot smoke gas can be effectively moved downwards for enhancing the heating against the heat storage body; and in addition, high-temperature smoke gas extracted from the outlet of the high-temperature flue can heat burning-supporting air and raise the air temperature, so that the high-air temperature hot-air furnace is of the novel hot-air furnace with low investment, high efficiency, energy conservation, environmental protection, long service life and stable structure undoubtedly and has significant economic and social benefits.
Description
Technical field
The present invention relates to a kind of hotblast stove, particularly a kind ofly the air blast of High Temperature High Pressure is provided or a kind of high-blast-temperature hot-blast stove with high-temperature flue high-temperature flue gas current equalizer of the required hot blast of technique is provided for general industry heating for iron-smelting blast furnace.
Background technology
Hotblast stove as thermal power machinery begins widespread use in late 1970s in China, and it has become the regeneration product of electric heat source and traditional steam power thermal source in many industries.At present, blast funnace hot blast stove has entered the top combustion stove epoch, consider to require blast furnace blast to high wind-warm syndrome future development from energy-saving and cost-reducing, especially under the lower heat of combustion blast furnace gas, obtain high hot blast temperature, but also to reach high thermo-efficiency, the purpose of, energy-saving and environmental protection efficient with final realization, volume increase.Hotblast stove will be realized efficient and high wind-warm syndrome, key is that can its combustion processes and heat transfer process reach high-intensity combustion and high duty heat transfer and carry high wind-warm syndrome to blast furnace for a long time, after the combustion unit and heat accumulation-heat transfer device basis as realization high wind-warm syndrome of hotblast stove with performance optimization, the temperature and the length of air-supply time that how to improve coal gas and combustion air just become the underlying condition that continues to realize higher wind-warm syndrome.Such as the employing of heat tube preheater, the employing of flue gas reheater and the use of preheating of air stove.These device preheating gas and air all will be paid higher cost, comprise the increase of initial cost and the increase of operation and maintenance cost.If adopt all the people present's hot blast stove system, take 2 burnings 1 to send the operator scheme of 1 preheating, it increases the investment cost of hotblast stove and piping system, and is in sum, imperative with innovation to the improvement of existing blast funnace hot blast stove.
Therefore, produce a kind of simple in structure, easy to operate, reduced investment, high efficiency is not additionally taken up an area, piping system is simple, Stability Analysis of Structures, the high-blast-temperature hot-blast stove with high-temperature flue high-temperature flue gas current equalizer that the air-supply time is long has wide market outlook.
Summary of the invention
For the deficiencies in the prior art, the invention provides a kind of simple in structure, easy to operate, reduced investment, high efficiency, additionally do not take up an area, piping system is simple, Stability Analysis of Structures, the long high-blast-temperature hot-blast stove with high-temperature flue high-temperature flue gas current equalizer of air-supply time, can effectively solve the problem of the hotblast stoves such as combustion air preheating, wind-warm syndrome are not high, the air-supply time is short, equipment configuration is complicated, energy consumption is large.
Technical scheme of the present invention is like this: a kind of high-blast-temperature hot-blast stove with high-temperature flue high-temperature flue gas current equalizer, comprise the hotblast stove body, be arranged on the shaft big-wall of hotblast stove body interior, be arranged on the regenerator of hotblast stove body interior lower end, be arranged on the burner of hotblast stove body middle and upper part, the coal gas circuit that is connected with burner and air circuit, be arranged on the vault of hotblast stove bodies top, be arranged on the combustion chamber of vault below, be arranged on the floss hole of hotblast stove body bottom, the First Heat Exchanger that is connected with floss hole by pipeline, the second interchanger that is connected with First Heat Exchanger, the chimney that is connected with the second interchanger, the gas port that is connected with First Heat Exchanger and coal gas circuit by pipeline, the air scoop that is connected with the second interchanger and air circuit by pipeline, regenerator middle and lower part in hotblast stove body interior lower end is provided with the high-temperature flue gas current equalizer, this high-temperature flue gas current equalizer is connected with the high-temperature flue outlet, and the high-temperature flue outlet is connected with First Heat Exchanger by the high-temperature flue gas pipeline; Described high-temperature flue gas current equalizer comprises the high-temperature flue circuit that is connected with the high-temperature flue outlet, is provided with high-temperature flue in high-temperature flue circuit inboard, offers the smoke outlet group at high-temperature flue.
The annular recesses shape structure that described high-temperature flue circuit is comprised of top web member, bottom web member, side web member, the high-temperature flue circuit is arranged on the inboard of side web member, and the high-temperature flue circuit is connected with the hotblast stove body interior by the smoke outlet that is opened on the high-temperature flue.
Described high-temperature flue gas current equalizer below is fixedly connected with shack, and the shack below is fixedly connected with support ring, and support ring is fixedly mounted on the hotblast stove inner body wall by anchor nails.
Described high-temperature flue is cirque structure, offer the smoke outlet group at high-temperature flue, the smoke outlet group is at least two rows, and be evenly distributed on the high-temperature flue, the top of the top one row's smoke outlet group is to the height of the height between the bottom of below one row's smoke outlet group less than the high-temperature flue circuit.
The height sum of described top web member and bottom web member and side web member equals the height of high-temperature flue.
Described support ring is ring structure, and the width in the cross section, top of support ring is not less than the width of lower section, and the width in the cross section, top of support ring is less than the width in shack cross section, and the thickness of support ring is not less than the thickness of shack.
Described smoke outlet group is comprised of single smoke outlet, and being shaped as of smoke outlet is square or circular, and the surface-area sum of all smoke outlets is less than the surface-area of high-temperature flue circuit.
The present invention has following positively effect: the present invention is simple in structure, easy to operate, regenerator middle and lower part in hotblast stove body interior lower end is provided with the flue gas flow equalizing device, this flue gas flow equalizing device is connected with the high-temperature flue outlet, and the high-temperature flue outlet is connected with First Heat Exchanger by the high-temperature flue gas pipeline; Described flue gas flow equalizing device comprises the high-temperature flue circuit that is connected with the high-temperature flue outlet, be provided with high-temperature flue in high-temperature flue circuit inboard, offer the smoke outlet group at high-temperature flue, regenerator middle and lower part at existing hotblast stove adds the high-temperature flue gas current equalizer, when the hotblast stove heating flame, the high-temperature flue gas current equalizer is owing to being located at the middle and lower part of regenerator, can move down by effectively just hot flue gas, enhancing is to the heating of heat storage, the high-temperature flue gas of being extracted out by the high-temperature flue outlet in addition can be to heating combustion air, improve wind-warm syndrome, this is undoubtedly a kind of reduced investment, efficient is high, energy-conserving and environment-protective, long service life, additionally do not take up an area, piping system is simple, the hotblast stove of constitutionally stable novelty, economic and social benefit is remarkable.
Description of drawings
Fig. 1 is one of structural representation of the present invention.
Fig. 2 is the enlarged diagram at I position among Fig. 1 of the present invention.
Fig. 3 is A place cross sectional view among Fig. 1 of the present invention.
Fig. 4 is support ring of the present invention and shack syndeton partial schematic diagram.
Fig. 5 is shack of the present invention and support ring cross sectional view.
Fig. 6 is the side structure schematic diagram of Fig. 4 of the present invention.
Fig. 7 is high-temperature flue perspective view of the present invention.
Fig. 8 is high-temperature flue circuit of the present invention and high-temperature flue syndeton schematic diagram.
Fig. 9 is two of structural representation of the present invention.
Figure 10 is three of structural representation of the present invention.
Embodiment
Such as Fig. 1,2,3,4,5,6,7,8,9, shown in 10, a kind of high-blast-temperature hot-blast stove with high-temperature flue high-temperature flue gas current equalizer, comprise hotblast stove body 1, be arranged on the shaft big-wall 2 of hotblast stove body 1 inside, be arranged on the regenerator 3 of hotblast stove body 1 interior lower end, be arranged on the burner 4 of hotblast stove body 1 middle and upper part, the coal gas circuit 5 that is connected with burner 4 and air circuit 6, be arranged on the vault 7 at hotblast stove body 1 top, be arranged on the combustion chamber 8 of vault 7 belows, be arranged on the floss hole 16 of hotblast stove body 1 bottom, the First Heat Exchanger 12 that is connected with floss hole 16 by pipeline, the second interchanger 25 that is connected with First Heat Exchanger 12, the chimney 13 that is connected with the second interchanger 25, the gas port 14 that is connected with First Heat Exchanger 12 and coal gas circuit 5 by pipeline, the air scoop 15 that is connected with the second interchanger 25 and air circuit 6 by pipeline, regenerator 3 middle and lower parts in hotblast stove body 1 interior lower end are provided with the high-temperature flue gas current equalizer, this high-temperature flue gas current equalizer and high-temperature flue outlet 9 is connected, and high-temperature flue outlet 9 is connected with First Heat Exchanger 12 by high-temperature flue gas pipeline 24; Described high-temperature flue gas current equalizer comprises and the high-temperature flue outlet 9 high-temperature flue circuits 10 that are connected, and is provided with high-temperature flue 11 in high-temperature flue circuit 10 inboards, offers smoke outlet group 23 at high-temperature flue 11.
The annular recesses shape structure that described high-temperature flue circuit 10 is comprised of top web member 22, bottom web member 20, side web member 26, high-temperature flue circuit 10 is arranged on the inboard of side web member 26, and high-temperature flue circuit 10 is connected with hotblast stove body 1 inside by the smoke outlet 23 that is opened on the high-temperature flue 11.Described high-temperature flue gas current equalizer below is fixedly connected with shack 19, and shack 19 belows are fixedly connected with support ring 18, and support ring 18 is fixedly mounted on hotblast stove body 1 inwall by anchor nails 21.Described high-temperature flue 11 is cirque structure, offer smoke outlet group 23 at high-temperature flue 11, smoke outlet group 23 is at least two rows, and be evenly distributed on the high-temperature flue 11, the top of the top one row's smoke outlet group is to the height of the height between the bottom of below one row's smoke outlet group less than high-temperature flue circuit 10.The height sum of described top web member 22 and bottom web member 20 and side web member 26 equals the height of high-temperature flue 11.Described support ring 18 is ring structure, and the width in the cross section, top of support ring 18 is not less than the width of lower section, and the width in the cross section, top of support ring 18 is less than the width in shack 19 cross sections, and the thickness of support ring 18 is not less than the thickness of shack 19.Described smoke outlet group 23 is comprised of single smoke outlet, and being shaped as of smoke outlet is square or circular, and the surface-area sum of all smoke outlets is less than the surface-area of high-temperature flue circuit 10.
Can be found out by said structure, the present invention can effectively realize the abundant preheating of hotblast stove combustion air and since the abundant preheating of combustion air after temperature higher, Effective Raise temperature of combustion.Because the high-temperature flue gas current equalizer is located at the middle and lower part of regenerator, can move down by effectively just hot flue gas, strengthen the heating to heat storage, improved the utilization ratio of heat-transfer effect and the heat storage of air-flow.Saved the peripheral hardware air preheater owing to the high-temperature flue gas current equalizer has effectively utilized the space of hotblast stove self, and preheating temperature is not subjected to the impact of funnel temperature, its self-tuning performance is stronger, and can improve hotblast stove efficient by reducing funnel temperature.Therefore, the lifting of the heat exchange effect of the intensity of its simple structure and system, mixed firing, air-flow, hot blast temperature, the reduction of funnel temperature etc. all can obviously be better than the hotblast stove of other types.
Fig. 9 is the embodiment of the present invention on different hotblast stoves with Figure 10, shown in Fig. 2,3,4,5,6,7,8, by finding out on the figure, regenerator middle and lower part in hotblast stove body interior lower end is provided with the high-temperature flue gas current equalizer, this high-temperature flue gas current equalizer and high-temperature flue outlet 9 is connected, and high-temperature flue outlet 9 is connected with First Heat Exchanger 12 by high-temperature flue gas pipeline 24; The high-temperature flue gas current equalizer comprises and the high-temperature flue outlet 9 high-temperature flue circuits 10 that are connected, and is provided with high-temperature flue 11 in high-temperature flue circuit 10 inboards, offers smoke outlet group 23 at high-temperature flue 11.The annular recesses shape structure that described high-temperature flue circuit 10 is comprised of top web member 22, bottom web member 20, side web member 26, high-temperature flue circuit 10 is arranged on the inboard of side web member 26, and high-temperature flue circuit 10 is connected with hotblast stove body 1 inside by the smoke outlet 23 that is opened on the high-temperature flue 11.Described high-temperature flue gas current equalizer below is fixedly connected with shack 19, and shack 19 belows are fixedly connected with support ring 18, and support ring 18 is fixedly mounted on hotblast stove body 1 inwall by anchor nails 21.Described high-temperature flue 11 is cirque structure, offer smoke outlet group 23 at high-temperature flue 11, smoke outlet group 23 is at least two rows, and be evenly distributed on the high-temperature flue 11, the top of the top one row's smoke outlet group is to the height of the height between the bottom of below one row's smoke outlet group less than high-temperature flue circuit 10.The height sum of described top web member 22 and bottom web member 20 and side web member 26 equals the height of high-temperature flue 11.Described support ring 18 is ring structure, and the width in the cross section, top of support ring 18 is not less than the width of lower section, and the width in the cross section, top of support ring 18 is less than the width in shack 19 cross sections, and the thickness of support ring 18 is not less than the thickness of shack 19.Described smoke outlet group 23 is comprised of single smoke outlet, and being shaped as of smoke outlet is square or circular, and the surface-area sum of all smoke outlets is less than the surface-area of high-temperature flue circuit 10.
In a word, the present invention scientifically uses the regenerator big-wall, and the high-temperature flue gas current equalizer that arranges therein makes it not only to save external air preheater, also change the part heat radiation into heat that warm air carries, it is fairly obvious with the effect of save energy that its simplified system saves investment.Because the pre-heat effect of the primary heater unit of self is better than external air preheater, the raising of temperature of combustion and hot blast temperature is more remarkable.Therefore, with simple and reasonably structure come the Effective Raise combustion air temperature, again configuration can make that coal gas mixes with the air Quick uniform, rapid high-intensity combustion and the inhomogeneous combustion unit of combustion gas flowing velocity distribution, and the heat storage body structure of energy strengthening heat transfer, just can effectively guarantee hot-blast furnace high efficient, high temperature, average rate, high-heat strength and the operation of safety and stablization ground; Then realize good economic benefit and the social benefit of fuel saving, saving investment, reduction spent air temperture and quantity discharged, environmental contamination reduction.
Claims (7)
1. high-blast-temperature hot-blast stove with high-temperature flue high-temperature flue gas current equalizer, comprise hotblast stove body (1), be arranged on the inner shaft big-wall (2) of hotblast stove body (1), be arranged on the regenerator (3) of hotblast stove body (1) interior lower end, be arranged on the burner (4) of hotblast stove body (1) middle and upper part, the coal gas circuit (5) that is connected with burner (4) and air circuit (6), be arranged on the vault (7) at hotblast stove body (1) top, be arranged on the combustion chamber (8) of vault (7) below, be arranged on the floss hole (16) of hotblast stove body (1) bottom, the First Heat Exchanger (12) that is connected with floss hole (16) by pipeline, the second interchanger (25) that is connected with First Heat Exchanger (12), the chimney (13) that is connected with the second interchanger (25), the gas port (14) that is connected with First Heat Exchanger (12) and coal gas circuit (5) by pipeline, the air scoop (15) that is connected with the second interchanger (25) and air circuit (6) by pipeline, it is characterized in that: regenerator (3) middle and lower part in hotblast stove body (1) interior lower end is provided with the high-temperature flue gas current equalizer, this high-temperature flue gas current equalizer is connected with high-temperature flue outlet (9), and high-temperature flue outlet (9) is connected with First Heat Exchanger (12) by high-temperature flue gas pipeline (24); Described high-temperature flue gas current equalizer comprises the high-temperature flue circuit (10) that is connected with high-temperature flue outlet (9), is provided with high-temperature flue (11) in high-temperature flue circuit (10) inboard, offers smoke outlet group (23) at high-temperature flue (11).
2. the high-blast-temperature hot-blast stove with high-temperature flue high-temperature flue gas current equalizer according to claim 1, it is characterized in that: the annular recesses shape structure that described high-temperature flue circuit (10) is comprised of top web member (22), bottom web member (20), side web member (26), high-temperature flue circuit (10) is arranged on the inboard of side web member (26), and high-temperature flue circuit (10) is connected with hotblast stove body (1) inside by the smoke outlet (23) that is opened on the high-temperature flue (11).
3. the high-blast-temperature hot-blast stove with high-temperature flue high-temperature flue gas current equalizer according to claim 1, it is characterized in that: described high-temperature flue gas current equalizer below is fixedly connected with shack (19), shack (19) below is fixedly connected with support ring (18), and support ring (18) is fixedly mounted on hotblast stove body (1) inwall by anchor nails (21).
4. the high-blast-temperature hot-blast stove with high-temperature flue high-temperature flue gas current equalizer according to claim 1, it is characterized in that: described high-temperature flue (11) is cirque structure, offer smoke outlet group (23) at high-temperature flue (11), smoke outlet group (23) is at least two rows, and be evenly distributed on the high-temperature flue (11), the top of the top one row's smoke outlet group is to the height of the height between the bottom of below one row's smoke outlet group less than high-temperature flue circuit (10).
5. the high-blast-temperature hot-blast stove with high-temperature flue high-temperature flue gas current equalizer according to claim 2 is characterized in that: described top web member (22) and the height sum of bottom web member (20) and side web member (26) equal the height of high-temperature flue (11).
6. the high-blast-temperature hot-blast stove with high-temperature flue high-temperature flue gas current equalizer according to claim 3, it is characterized in that: described support ring (18) is ring structure, the width in the cross section, top of support ring (18) is not less than the width of lower section, the width in the cross section, top of support ring (18) is less than the width in shack (19) cross section, and the thickness of support ring (18) is not less than the thickness of shack (19).
7. the high-blast-temperature hot-blast stove with high-temperature flue high-temperature flue gas current equalizer according to claim 4, it is characterized in that: described smoke outlet group (23) is comprised of single smoke outlet, being shaped as of smoke outlet is square or circular, and the surface-area sum of all smoke outlets is less than the surface-area of high-temperature flue circuit (10).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104857522A CN102925608A (en) | 2012-11-26 | 2012-11-26 | High-air temperature hot-air furnace with high-temperature flue and high-temperature smoke gas current equalizer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012104857522A CN102925608A (en) | 2012-11-26 | 2012-11-26 | High-air temperature hot-air furnace with high-temperature flue and high-temperature smoke gas current equalizer |
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| CN202532702U (en) * | 2012-05-02 | 2012-11-14 | 刘力铭 | Top combustion hot-blast stove capable of achieving double preheating through mix of high-temperature smoke and low-temperature smoke |
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| CN2380576Y (en) * | 1998-03-13 | 2000-05-31 | 王正宇 | Device for uniformly distributing lower air-flow of blast heater |
| CN2736365Y (en) * | 2004-02-23 | 2005-10-26 | 山东省冶金设计院 | Flow sharing device for cold air and smoke from hot blast stove |
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Application publication date: 20130213 |