CN201873705U - Co-combustion type air heater - Google Patents
Co-combustion type air heater Download PDFInfo
- Publication number
- CN201873705U CN201873705U CN2010206273423U CN201020627342U CN201873705U CN 201873705 U CN201873705 U CN 201873705U CN 2010206273423 U CN2010206273423 U CN 2010206273423U CN 201020627342 U CN201020627342 U CN 201020627342U CN 201873705 U CN201873705 U CN 201873705U
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- regenerator
- combustion
- heat accumulation
- roasting kiln
- air heater
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Abstract
The utility model relates to a co-combustion type air heater, belonging to the field of the air heater for metallurgical blast furnace iron-making. The co-combustion type air heater comprises a combustion furnace and heat accumulation chambers, wherein the combustion furnace is communicated with the heat accumulation chambers by connecting pipes; one combustion furnace and at least two heat accumulation chambers are available; the heat accumulation chambers share one combustion chamber; and the combustion furnace is provided with the connecting pipes which have the same number with that of the heat accumulation chambers and correspond to the heat accumulation chambers one by one. The air supply and heat accumulation of the air heater can be selectively carried out according to different needs, and the combustion furnace is not frequently suffered from the alternate process of air supply and combustion, so that the functions of a plurality of air heaters can be realized by the whole air heater; the hot air can be evenly supplied with low energy consumption and high efficiency based on the limit occupied land area, and the equipment investment and production cost are reduced; furthermore, the co-combustion type air heater solves the problems of cracking and slagging of inner layer heat-resisting material caused by violent temperature fluctuation in the prior art, so that the service life of the combustion furnace is prolonged, and the use cost and the maintenance cost are saved.
Description
Technical field
The utility model relates to a kind of hotblast stove device (cofiring formula hotblast stove) that is used for the blast furnace ironmaking field.
Background technology
Blast funnace hot blast stove is one of main supporting equipment of iron work blast furnace, provides 1000 degree above high-temperature hot-air for blast furnace is continual, and hotblast stove is a kind of energy-efficient heat power supply device.
Press the heat storage bulb separation formula hotblast stove (being called for short the ball stove) of hotblast stove inside and the hotblast stove of employing checker brick, can be divided into top ignition by the burner position, internal combustion type, external combustion types etc. are several.
In the prior art, the external combustion regenerative hot blast stove is made up of roasting kiln that high-temperature flue gas is provided and the regenerator that is communicated with liaison tube, high-temperature flue gas is through regenerator, absorb and store heat by heat storage, discharge behind the flue gas cool-down, regenerator heating and store enough heats after, cease combustion, change stove, change on air.In on air, cold wind is sent into regenerator through cold air duct and cold blast valve and is heated, and the cold wind after the heating is sent into blast furnace through hot blast valve and hot air duct.When regenerator can not be kept the blast temperature of regulation, change stove, hotblast stove is converted to burning by air-supply.Because outside combustion stove arranges separately that with roasting kiln and regenerator it is big to have floor space, invests high shortcoming.Roasting kiln need bear temperature big ups and downs crackle of anti-material the and the scorification brought in air-supply and the burning switching process, and frequently blows and burn, and not only can increase energy consumption, also reduces production efficiency; For guaranteeing evenly to send hot blast, many hotblast stoves need be set, increase equipment drops into, and increases production cost thus.Simultaneously, many hotblast stoves arrange and also are unfavorable under existing plant area limited land resources and economic condition, realize processing set-up optimization, investment minimize maximization with efficient.
Therefore, need improve existing hotblast stove, can be on the basis of limited floor space, realization less energy-consumption, high-level efficiency are evenly sent hot blast, and reduction equipment drops into and production cost.
The utility model content
In view of this, the purpose of this utility model provides a kind of cofiring formula hotblast stove, can be on the basis of limited floor space, and realization less energy-consumption, high-level efficiency are evenly sent hot blast, and reduction equipment drops into and production cost.
Cofiring formula hotblast stove of the present utility model, described roasting kiln is one, regenerator is at least two, at least two shared roasting kilns of regenerator and by identical with regenerator quantity and one to one liaison tube be communicated in roasting kiln.
Further, described roasting kiln and regenerator independently are provided with;
Further, described regenerator is communicated in roasting kiln by the vault liaison tube;
Further, on the liaison tube that is communicated with between described regenerator and the roasting kiln trip valve is set;
Further, described regenerator is distributed in around the roasting kiln;
Further, described regenerator is two to four and is distributed in around the roasting kiln;
Further, described regenerator is two to four and is uniformly distributed in around the roasting kiln;
Further, described regenerator is two and is 180 ° or 90 ° of central angles and is distributed in around the roasting kiln.
The beneficial effects of the utility model are: cofiring formula hotblast stove of the present utility model, a roasting kiln disposes a plurality of regenerator, according to different needs, selectively carry out the air-supply and the accumulation of heat of regenerator, roasting kiln can be not frequent air-supply and burning, the hotblast stove of an integral body is realized the function of many hotblast stoves, can be on the basis of limited floor space, realization less energy-consumption, high-level efficiency are evenly sent hot blast, and reduction equipment drops into and production cost; Can not bring the crackle and the scorification of internal layer heat-stable material because of withstand temp big ups and downs in the prior art, prolong the work-ing life of roasting kiln, save and use and maintenance cost.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further described.
Fig. 1 is first kind of example structure synoptic diagram of the present utility model;
Fig. 2 be Fig. 1 along A to view;
Fig. 3 is second kind of example structure synoptic diagram of the utility model;
Fig. 4 is the third example structure synoptic diagram of the utility model;
Fig. 5 is the 4th kind of example structure synoptic diagram of the utility model.
Embodiment
Fig. 1 is first kind of example structure synoptic diagram of the present utility model, Fig. 2 be Fig. 1 along A to view, as shown in the figure: the cofiring formula hotblast stove of present embodiment, comprise roasting kiln 1 and regenerator 2, described roasting kiln 1 is communicated in regenerator 2 by liaison tube, and described roasting kiln 1 is one, regenerator 2 is at least two, roasting kiln 1 is provided with liaison tube identical with regenerator 2 quantity and corresponding one by one connection, at least two regenerator 2 shared roasting kilns 1, and be communicated in roasting kiln by liaison tube separately; As shown in the figure, the flue gas of roasting kiln 1 is discharged regenerator 2 accumulation of heats this moment through regenerator 2 backs by passing through smoke-uptake 6; When needing regenerator 2 to send hot blast, cut off the passage between roasting kiln 1 and the corresponding regenerator 2, feed cold wind to regenerator simultaneously, make the regenerator 2 that is in the accumulation of heat state originally be in ventilation state, the hot blast of generation enters the hot blast person in charge by hot blast manifold 5 and send into blast furnace behind overmulling wind; Meanwhile, other regenerator 2 connection roasting kilns 1 carry out accumulation of heat.
In the present embodiment, described roasting kiln 1 and regenerator 2 independent settings; Be beneficial to design, make and install, save manufacturing cost.
In the present embodiment, described regenerator is communicated in roasting kiln by the vault liaison tube.
In the present embodiment, on the liaison tube that is communicated with between described regenerator 2 and the roasting kiln 1 trip valve 3 is set; Switch according to air-supply or accumulation of heat.
In the present embodiment, described regenerator 2 is distributed in around the roasting kiln 1; Compact construction, floor space is little, is beneficial to construction, saves construction cost.
In the present embodiment, described regenerator 2 is communicated in roasting kiln 1 by vault liaison tube 4, and described trip valve 3 is arranged on the vault liaison tube 4; Adopt vault liaison tube 4 structures, can make regenerator 2 flexible arrangement, adaptability is strong, is applicable to the occasion that comparatively limit in the space.
In the present embodiment, described regenerator 2 is two to four and is distributed in around the roasting kiln 1; Can satisfy the blast furnace needs, realize the stable and uniform air-supply.
In the present embodiment, described regenerator 2 is two and is 180 ° of central angles and is distributed in around the roasting kiln 1.
Fig. 3 is second kind of example structure synoptic diagram of the utility model, and the difference of present embodiment and embodiment one only is as shown in the figure: described regenerator 2 is two and is 90 ° of central angles and is distributed in around the roasting kiln 1, is applicable to the occasion of different needs.
Fig. 4 is the third example structure synoptic diagram of the utility model, and as shown in the figure, the difference of present embodiment and embodiment one only is: described regenerator 2 is three and is uniformly distributed in around the roasting kiln 1.
Fig. 5 is the 4th kind of example structure synoptic diagram of the utility model, as shown in the figure, the difference of present embodiment and embodiment one only is: described regenerator 2 is four and is uniformly distributed in around the roasting kiln 1, play the effect of four hotblast stoves, utilize less occupation of land space, the realization stable and uniform is sent the purpose of hot blast.
Explanation is at last, above embodiment is only unrestricted in order to the explanation the technical solution of the utility model, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment to the technical solution of the utility model or/and be equal to replacement, and not breaking away from the aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of the claim scope of the present utility model.
Claims (8)
1. cofiring formula hotblast stove, comprise roasting kiln and regenerator, described roasting kiln is communicated in regenerator by liaison tube, it is characterized in that: described roasting kiln is one, regenerator is at least two, at least two shared roasting kilns of regenerator and by identical with regenerator quantity and one to one liaison tube be communicated in roasting kiln.
2. cofiring formula hotblast stove according to claim 1, it is characterized in that: described roasting kiln and regenerator independently are provided with.
3. cofiring formula hotblast stove according to claim 2, it is characterized in that: described regenerator is communicated in roasting kiln by the vault liaison tube.
4. cofiring formula hotblast stove according to claim 3 is characterized in that: on the liaison tube that is communicated with between described regenerator and the roasting kiln trip valve is set.
5. cofiring formula hotblast stove according to claim 4, it is characterized in that: described regenerator is distributed in around the roasting kiln.
6. cofiring formula hotblast stove according to claim 5 is characterized in that: described regenerator is two to four and is distributed in around the roasting kiln.
7. cofiring formula hotblast stove according to claim 6 is characterized in that: described regenerator is two to four and is uniformly distributed in around the roasting kiln.
8. cofiring formula hotblast stove according to claim 7 is characterized in that: described regenerator is two and is 180 ° or 90 ° of central angles and is distributed in around the roasting kiln.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206273423U CN201873705U (en) | 2010-11-26 | 2010-11-26 | Co-combustion type air heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206273423U CN201873705U (en) | 2010-11-26 | 2010-11-26 | Co-combustion type air heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201873705U true CN201873705U (en) | 2011-06-22 |
Family
ID=44161631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206273423U Expired - Lifetime CN201873705U (en) | 2010-11-26 | 2010-11-26 | Co-combustion type air heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201873705U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103509903A (en) * | 2012-06-20 | 2014-01-15 | 鞍钢股份有限公司 | Phase-change heat storage type high-air-temperature hot blast stove |
-
2010
- 2010-11-26 CN CN2010206273423U patent/CN201873705U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103509903A (en) * | 2012-06-20 | 2014-01-15 | 鞍钢股份有限公司 | Phase-change heat storage type high-air-temperature hot blast stove |
| CN103509903B (en) * | 2012-06-20 | 2015-09-02 | 鞍钢股份有限公司 | Phase-change heat storage type high-air-temperature hot blast stove |
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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: 20110622 Effective date of abandoning: 20120815 |