CN203668437U - Air heater shared by two blast furnaces - Google Patents
Air heater shared by two blast furnaces Download PDFInfo
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- CN203668437U CN203668437U CN201420054405.9U CN201420054405U CN203668437U CN 203668437 U CN203668437 U CN 203668437U CN 201420054405 U CN201420054405 U CN 201420054405U CN 203668437 U CN203668437 U CN 203668437U
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- air
- blast
- hot
- cold air
- cold
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Abstract
The utility model discloses an air heater shared by two blast furnaces. The air heater comprises an air heater and two blast furnaces. Each blast furnace comprises a hot air bustle pipe, an air heater group, an air blaster, a hot air pipe and a cold air pipe. Two cold air inlets and two hot air outlets are formed in the air heater, and the two cold air inlets are disposed below a heat accumulator of the air heater. Each cold air inlet is connected with a corresponding blast furnace cold air pipe through a cold air connection pipe, and two cold air connection pipes are arranged. A cold air valve and a cold air pressure equalizing valve are mounted on each cold air connection pipe. The two hot air outlets are disposed above the heat accumulator of the air heater, each hot air outlet is connected with a corresponding blast furnace hot air pipe through a hot air connection pipe, two cold air connection pipes are arranged, and a hot air valve is mounted on each hot air connection pipe. Hot air can be supplied for the two blast furnaces by the switching of the cold air vales and the hot air valves. The air heater is reasonable in arrangement and capable of meeting the air temperature rising requirement of two blast furnaces.
Description
Technical field
The utility model relates to two shared hotblast stoves of blast furnace of a kind of confession, belongs to the technical field of blast furnace ironmaking in Iron And Steel Industry.
Background technology
Hot blast temperature is a very important index in blast furnace is produced, and ironmaking worker tries every means to improve hot blast temperature, to reduce cost and saving resource.
Three hotblast stoves of every configuration of many blast furnaces, can improve its average wind pushing temperature as increased a hotblast stove again.But because it is higher to increase a hotblast stove investment, the idea of two shared hotblast stoves of blast furnace is suggested.
Because traditional hotblast stove monomer is only furnished with a cold air inlet and a hot-blast outlet, if this traditional hotblast stove is shared by two blast furnaces, its cold wind and hot air duct are long and complicated, certainly will bring like this floor space greatly and the problem of increase cost.
Utility model content
The utility model technical issues that need to address are just to overcome the defect of prior art, provide a kind of confession two shared hotblast stoves of blast furnace, it is modified to the structure of traditional hotblast stove, and reasonable disposition increases a shared hotblast stove to meet the demand of two blast furnaces raising wind-warm syndrome.
For addressing the above problem, the utility model adopts following technical scheme:
The utility model provides a kind of confession two shared hotblast stoves of blast furnace, comprises a hotblast stove and two blast furnaces; Two blast furnaces are respectively arranged with hot air duct and cold air duct; Described hotblast stove is provided with two cold air inlets and two hot-blast outlets, and two cold air inlets are positioned at hotblast stove heat storage below; Each cold air inlet is connected with the cold air duct of a corresponding blast furnace by a cold wind pipe connecting, totally two cold wind pipe connectings; A cold blast valve and a cold air pressure equalizing valve are installed on every cold wind pipe connecting; Two hot-blast outlets are positioned at hotblast stove heat storage top, and each hot-blast outlet is connected with the hot air duct of a corresponding blast furnace by a hot blast pipe connecting, and totally two hot blast pipe connectings are installed a hot blast valve on every hot blast pipe connecting.Can alternately send hot blast to share for two blast furnaces by the blocked operation of cold blast valve and hot blast valve.
In the utility model, every blast furnace is also respectively arranged with bustle pipe, hotblast stove group and gas blower, and bustle pipe is connected with hotblast stove group by hot air duct, and gas blower is connected with cold air duct.
The utility model is modified to the structure of traditional hotblast stove, and reasonable disposition increases a shared hotblast stove to meet the demand of two blast furnaces raising wind-warm syndrome.
Accompanying drawing explanation
Fig. 1 is that the utility model shares hotblast stove facade structures schematic diagram.
Fig. 2 is that the utility model shares hotblast stove two dimensional structure schematic diagram.
Embodiment
As shown in Figure 1, the utility model provides a kind of confession two shared hotblast stoves of blast furnace, comprises a hotblast stove 100 and two blast furnace A, B; Every blast furnace is respectively arranged with bustle pipe A-1, B-1, hotblast stove group A-2, B-2, gas blower A-3, B-3 and hot air duct A-4, B-4 and cold air duct A-5, B-5, bustle pipe is connected with hotblast stove group by hot air duct, and gas blower is connected with cold air duct; Described hotblast stove is provided with two cold air inlet A-6, B-6 and two hot-blast outlet A-7, B-7, and two cold air inlets are positioned at hotblast stove heat storage below; Each cold air inlet is connected with the cold air duct of a corresponding blast furnace by cold wind pipe connecting A-8, a B-8, totally two cold wind pipe connectings; Cold blast valve A-9, a B-9 and cold air pressure equalizing valve A-10, a B-10 are installed on every cold wind pipe connecting; Two hot-blast outlets are positioned at hotblast stove heat storage top, each hot-blast outlet is connected with the hot air duct of a corresponding blast furnace by hot blast pipe connecting A-11, a B-11, totally two hot blast pipe connectings, install hot blast valve A-12, a B-12 on every hot blast pipe connecting.Can alternately send hot blast to share for two blast furnaces by the blocked operation of cold blast valve and hot blast valve.
Concrete working process for: in Fig. 1, share hotblast stove and be equipped with by A blast furnace and B blast furnace, but shared hotblast stove can not be used by A blast furnace and B blast furnace simultaneously.In the time that A blast furnace need to share hotblast stove hot wind supply, share hotblast stove near cold blast valve B-9, the cold air pressure equalizing valve B-10 of B blast furnace one side and hot blast valve B-12 in closing condition, share hotblast stove near the cold blast valve A-9 of A blast furnace one side and hot blast valve A-12 in open mode, cold air pressure equalizing valve A-10 is in closing condition.The cold wind of A blast furnace is heated by sharing hotblast stove like this, and hot blast is sent to A blast furnace by hot air duct.Equally, in the time that B blast furnace need to share hotblast stove hot wind supply, otherwise.The acting as of cold air pressure equalizing valve A-10 in figure: before open cold air-valve A-9, first open cold air pressure equalizing valve A-10 to reduce the pressure reduction before and after cold blast valve A-9, so that the unlatching of cold blast valve A-9.After cold blast valve A-9 opens completely, close cold air pressure equalizing valve A-10.The effect of cold air pressure equalizing valve B-10 is too for the unlatching of cold blast valve B-9.
Finally it should be noted that: obviously, above-described embodiment is only for the utility model example is clearly described, and the not restriction to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here without also giving exhaustive to all embodiments.And the apparent variation of being amplified out thus or variation are still among protection domain of the present utility model.
Claims (2)
1. two shared hotblast stoves of blast furnace of confession, is characterized in that: comprise a hotblast stove and two blast furnaces; Two blast furnaces are respectively arranged with hot air duct and cold air duct; Described hotblast stove is provided with two cold air inlets and two hot-blast outlets, and two cold air inlets are positioned at hotblast stove heat storage below; Each cold air inlet is connected with the cold air duct of a corresponding blast furnace by a cold wind pipe connecting, totally two cold wind pipe connectings; A cold blast valve and a cold air pressure equalizing valve are installed on every cold wind pipe connecting; Two hot-blast outlets are positioned at hotblast stove heat storage top, and each hot-blast outlet is connected with the hot air duct of a corresponding blast furnace by a hot blast pipe connecting, and totally two hot blast pipe connectings are installed a hot blast valve on every hot blast pipe connecting.
2. two shared hotblast stoves of blast furnace of confession as claimed in claim 1, is characterized in that: every blast furnace is also respectively arranged with bustle pipe, hotblast stove group and gas blower, and bustle pipe is connected with hotblast stove group by hot air duct, and gas blower is connected with cold air duct.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420054405.9U CN203668437U (en) | 2014-01-28 | 2014-01-28 | Air heater shared by two blast furnaces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420054405.9U CN203668437U (en) | 2014-01-28 | 2014-01-28 | Air heater shared by two blast furnaces |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203668437U true CN203668437U (en) | 2014-06-25 |
Family
ID=50964753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420054405.9U Expired - Fee Related CN203668437U (en) | 2014-01-28 | 2014-01-28 | Air heater shared by two blast furnaces |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203668437U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110819752A (en) * | 2019-12-02 | 2020-02-21 | 唐山泽华工程技术有限公司 | Hot air system for blast furnace |
-
2014
- 2014-01-28 CN CN201420054405.9U patent/CN203668437U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110819752A (en) * | 2019-12-02 | 2020-02-21 | 唐山泽华工程技术有限公司 | Hot air system for blast furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140625 Termination date: 20210128 |