CN103882172A - Blast furnace hot blast stove heat preservation device - Google Patents
Blast furnace hot blast stove heat preservation device Download PDFInfo
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- CN103882172A CN103882172A CN201410112828.6A CN201410112828A CN103882172A CN 103882172 A CN103882172 A CN 103882172A CN 201410112828 A CN201410112828 A CN 201410112828A CN 103882172 A CN103882172 A CN 103882172A
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- combustion air
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Abstract
The invention provides a blast furnace hot blast stove heat preservation device which comprises a main combustor, an auxiliary combustor, a main combustion fan as well as an auxiliary combustion fan, wherein the main combustor is communicated with a blast furnace gas producer; the main combustor is communicated with the combustion fan through a main combustion air channel; a combustion air diffusion tube is arranged on the main combustion air channel; a combustion air diffusion valve is arranged on the combustion air diffusion tube; the auxiliary combustor is communicated with a coke oven gas generator; the auxiliary combustion fan is communicated with the auxiliary combustor through an auxiliary combustion air channel; the auxiliary combustion air channel is communicated with the main combustion air fan through a communicating pipeline; and a stop valve is arranged on the communicating pipeline. According to the scheme, in the hot blast stove heat preservation period, on premise that no variable frequency system is used, waste of electric power is avoided, noise pollution can be effectively reduced, and meanwhile the source of combustion air inside the main combustor and the auxiliary combustor can be controlled conveniently.
Description
Technical field
The present invention relates to a kind of attemperator, specifically a kind of blast funnace hot blast stove attemperator.
Background technology
At iron and steel metallurgical industry, smelting often adopts hotblast stove to provide hot blast for it with blast furnace, and for the regenerator of bottom, combustion chamber being heated in real time to the temperature of regulation, at hotblast stove insulation run duration, main burner and auxiliary burner are installed outside the combustion chamber of hotblast stove simultaneously.Main burner and auxiliary burner adopt respectively different fuel, main burner is taking the self-produced blast furnace gas of blast furnace as fuel, auxiliary burner is taking other fuel such as coke-oven gas as fuel, and these two burners provide combustion air by main burner blower, and this main burner blower and main burner match.The blast furnace coal tolerance producing while normally production in view of blast furnace is more, guarantee the abundant burning of above-mentioned blast furnace gas, and main combustion air is confidential guarantees the combustion air that provides enough and appropriate, and output rating is very large.
And when blast furnace shutdown period, blast furnace gas is in stopping production or not enough state, now auxiliary burner operation, but the heat that Given this time, chamber of hot-blast stove needs is limited, a lot of less compared with main burner to the requirement of combustion air in auxiliary burner, in the time not using frequency conversion system, supply with combustion air if still use main burner blower for it, have large quantity of air more than needed, and the supply of this part air more than needed need to consume a large amount of electric energy, thereby cause the waste of a large amount of electric energy; And using powerful main burner blower is that auxiliary burner is supplied with combustion air, can produce noise pollution to environment.This is existing deficiency in prior art.
Summary of the invention
Technical problem to be solved by this invention is, for existing deficiency in prior art, a kind of technical scheme of blast funnace hot blast stove attemperator is provided, this scheme is between hotblast stove soak, do not using under the prerequisite of frequency conversion system, can avoid the waste of a large amount of electric energy described in the prior art, and can effectively reduce noise pollution, the source of being simultaneously convenient to combustion air in main and auxiliary burner is controlled.
For solving the problems of the technologies described above, the invention provides a kind of blast funnace hot blast stove attemperator, comprise main burner, auxiliary burner and main burner blower, main burner is connected with blast furnace gas producer, main burner is by the main burner blower described in a main combustion air channel connection, main combustion air passage is provided with combustion air bleeder, and combustion air bleeder is provided with combustion air diffusion valve; Auxiliary burner is connected with coke-oven gas producer; Also comprise an auxiliary burner blower, described auxiliary burner blower is communicated with described auxiliary burner by an auxiliary combustion air passageways, and auxiliary combustion air passageways is communicated with by a unicom pipeline with main combustion air passage, and this unicom pipeline is provided with trip valve.
When use, can carry out according to actual needs the model selection of the auxiliary burner blower of suitable auxiliary burner use.
Described main burner blower is connected with the normally opened contact J1-1 of a relay J 1, and described relay J 1 is connected with a button SB1.
Described auxiliary burner blower is connected with the normally opened contact J2-1 of a relay J 2, and described relay J 2 is connected with a button SB2.
Described combustion air diffusion valve adopts motor-operated control valve.
Described combustion air diffusion valve is connected with the normally opened contact J3-1 of a relay J 3, and described relay J 3 is connected with a button SB3.
Described trip valve adopts motor-operated control valve.
Described trip valve is connected with the normally opened contact J4-1 of a relay J 4, and described relay J 4 is connected with a button SB4.
Described main burner blower adopts D2200-11F blower fan.
Described auxiliary burner blower adopts 9-19-5.6 blower fan.
Compared with prior art, the invention has the beneficial effects as follows:
(1) main burner of the present invention and auxiliary burner are communicated with respectively different burner blowers, thereby be convenient to select the suitable burner blower of watt level according to actual needs, thereby guarantee the efficient utilization to the energy, between hotblast stove soak, not using under the prerequisite of frequency conversion system, can avoid the waste of electric energy in prior art; In addition, be applicable to the use of the low-power machine of auxiliary burner, can effectively reduce the noise pollution between soak, make Working environment more friendly;
(2) the present invention is by main combustion air channel connection main burner and main burner blower, be communicated with auxiliary burner blower and auxiliary burner by auxiliary combustion air passageways, auxiliary combustion air passageways is connected by a unicom pipeline with main combustion air interchannel, the use of unicom pipeline, make main burner blower can be used as the stand-by fan of auxiliary burner blower, this can increase the reliability and security that the present invention uses;
(3) main burner blower carries out on off control by button SB1 and relay J 1, and when use, push button SB1 can control main burner blower work by relay J 1, is convenient to control, controls sensitive and easy to use;
(4) auxiliary burner blower carries out on off control by button SB2 and relay J 2, and when use, push button SB2 can control the work of auxiliary combustion blower fan by relay J 2, is convenient to control, controls sensitive and easy to use;
(5) combustion air diffusion valve adopts motor-operated control valve, and this combustion air diffusion valve carries out open and close controlling by relay J 3 and button SB3, and while use, push button SB3 can control combustion air diffusion valve closure by relay J 3, cut-off push button SB3 can control combustion air diffusion valve by relay J 3 and disconnect, and is convenient to control, controls sensitive and easy to use;
(6) trip valve adopts motor-operated control valve, and this trip valve carries out open and close controlling by relay J 4 and button SB4, and while use, push button SB4 can control trip valve closure by relay J 4, cut-off push button SB4 can control trip valve by relay J 4 and disconnect, and is convenient to control, controls sensitive and easy to use.
Therefore, compared with prior art, the present invention has outstanding substantive distinguishing features and significant progressive, and the beneficial effect of its enforcement is also apparent.
Brief description of the drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 is electrical schematic diagram of the present invention.
Wherein: 1-main burner, the auxiliary burner of 2-, 3-blast furnace gas passage, the main combustion air passage of 4-, the auxiliary combustion of 5-air passageways, 6-coke-oven gas passage, 7-coke-oven gas producer, 8-unicom pipeline, 9-trip valve, the auxiliary burner blower of 10-, the main burner blower of 11-, 12-combustion air diffusion valve, 13-combustion air bleeder, 14-blast furnace gas producer, 15-combustion chamber, 16-regenerator.
Embodiment
For ease of explanation, below in conjunction with accompanying drawing, the present invention is described in further detail.
As depicted in figs. 1 and 2, a kind of blast funnace hot blast stove attemperator of the present invention, comprises main burner 1, auxiliary burner 2 and main burner blower 11, and main burner 1 is connected with blast furnace gas producer 14 by blast furnace gas passage 3.Blast funnace hot blast stove also comprises combustion chamber 15 and regenerator 16.Main burner 1 is arranged on the top of combustion chamber 15, and auxiliary burner 2 is arranged on the side of combustion chamber 15, and regenerator 16 is arranged on the bottom of combustion chamber 15.Main burner 1 is communicated with described main burner blower 11 by a main combustion air passage 4, and main combustion air passage 4 is provided with combustion air bleeder 13, and combustion air bleeder 13 is provided with combustion air diffusion valve 12; Auxiliary burner 2 is connected with coke-oven gas producer 7 by coke-oven gas passage 6; The present invention also comprises an auxiliary burner blower 10, described auxiliary burner blower 10 is communicated with described auxiliary burner 2 by an auxiliary combustion air passageways 5, auxiliary combustion air passageways 5 is communicated with by a unicom pipeline 8 with main combustion air passage 4, and this unicom pipeline 8 is provided with trip valve 9.
The use of unicom pipeline 8, has been communicated with auxiliary combustion air passageways 5 and main combustion air passage 4, makes main burner blower 11 can be used as the stand-by fan of auxiliary burner blower 10; In addition unicom pipeline 8 is provided with trip valve 9, and the break-make control of unicom pipeline 8 is convenient in the use of trip valve 9, simple in structure, easy to use.
At blast furnace, during in normal operating conditions, blast furnace gas producer 14 is by blast furnace gas passage 3 to the interior supply blast furnace gas of main burner 1 fuel, and whether the normal work of blast furnace directly affects the amount of blast furnace gas producer 14 interior blast furnace gases.During in end-of-life state, enable auxiliary burner 2 at blast furnace, and coke-oven gas producer 7 by coke-oven gas passage 6 to the interior supply coke-oven gas of auxiliary burner 2 fuel.
Wherein, main burner blower 11 adopts D2200-11F blower fan, and auxiliary burner blower 10 adopts 9-19-5.6 blower fan, the energy consumption of auxiliary burner blower 10 is much smaller than main burner blower 11, therefore in the time using auxiliary burner blower 10, can reduce to a great extent energy consumption, can also reduce noise pollution simultaneously.
Wherein, main burner blower 11 is connected with the normally opened contact J1-1 of relay J 1, and relay J 1 is connected with button SB1; Auxiliary burner blower 10 is connected with the normally opened contact J2-1 of relay J 2, and relay J 2 is connected with button SB2.Close push button SB1, SB2, can realize respectively main burner blower 11, the supply of auxiliary burner blower 10 to combustion air; Disconnect SB1, SB2, can stop respectively main burner blower 11, the supply of auxiliary burner blower 10 to combustion air; Be alternately closed and disconnect SB1, SB2, can make main burner blower 11 can be used as the stand-by fan of auxiliary burner blower 10, and then increasing the reliability that the present invention uses.
Wherein, combustion air diffusion valve 12 adopts motor-operated control valve.Combustion air diffusion valve 12 is connected with the normally opened contact J3-1 of relay J 3, and described relay J 3 is connected with button SB3.The use of button SB3, is convenient to closure and the disconnection of combustion air diffusion valve 12, thereby is convenient to realize the control whether combustion air is diffused, simple in structure and easy to use.
Wherein, trip valve 9 adopts motor-operated control valve.Trip valve 9 is connected with the normally opened contact J4-1 of relay J 4, and described relay J 4 is connected with button SB4.The use of button SB4, just controls closure and the disconnection of trip valve 9, thereby is convenient to realize unicom pipeline 8 paths and the control of opening circuit, and then is convenient in the time of auxiliary burner blower 10 fault, provides combustion air by main burner blower 11 for auxiliary burner 2.Reliability simple in structure, easy to use and that use is high.
In addition, when use, can be according to needs, button SB1, button SB2, button SB3 and button SB4 are arranged on to the place of convenient operation, thus convenient operation, and then the source of being convenient to combustion air in main and auxiliary burner is controlled, thereby increase the reliability that the present invention uses, practical.
In addition, in the present embodiment, the present invention passes through mains-supplied.
To sum up, less energy-consumption of the present invention, economy is practical again, is convenient to promote the use of.
The above, it is only preferred embodiments of the present invention, not in order to limit the present invention, any those skilled in the art, in any simple modification, equivalent variations and the modification that do not depart from the content of technical solution of the present invention, according to technical spirit of the present invention, above embodiment done, all belong to the scope of technical solution of the present invention.
Claims (9)
1. a blast funnace hot blast stove attemperator, comprise main burner, auxiliary burner and main burner blower, main burner is connected with blast furnace gas producer, main burner is by the main burner blower described in a main combustion air channel connection, main combustion air passage is provided with combustion air bleeder, and combustion air bleeder is provided with combustion air diffusion valve; Auxiliary burner is connected with coke-oven gas producer; It is characterized in that: also comprise an auxiliary burner blower, described auxiliary burner blower is communicated with described auxiliary burner by an auxiliary combustion air passageways, and auxiliary combustion air passageways is communicated with by a unicom pipeline with main combustion air passage, and this unicom pipeline is provided with trip valve.
2. blast funnace hot blast stove attemperator according to claim 1, is characterized in that: described main burner blower is connected with the normally opened contact J1-1 of a relay J 1, and described relay J 1 is connected with a button SB1.
3. blast funnace hot blast stove attemperator according to claim 1 and 2, is characterized in that: described auxiliary burner blower is connected with the normally opened contact J2-1 of a relay J 2, and described relay J 2 is connected with a button SB2.
4. blast funnace hot blast stove attemperator according to claim 1 and 2, is characterized in that: described combustion air diffusion valve adopts motor-operated control valve.
5. blast funnace hot blast stove attemperator according to claim 4, is characterized in that: described combustion air diffusion valve is connected with the normally opened contact J3-1 of a relay J 3, and described relay J 3 is connected with a button SB3.
6. blast funnace hot blast stove attemperator according to claim 1, is characterized in that: described trip valve adopts motor-operated control valve.
7. blast funnace hot blast stove attemperator according to claim 6, is characterized in that: described trip valve is connected with the normally opened contact J4-1 of a relay J 4, and described relay J 4 is connected with a button SB4.
8. blast funnace hot blast stove attemperator according to claim 1 and 2, is characterized in that: described main burner blower adopts D2200-11F blower fan.
9. blast funnace hot blast stove attemperator according to claim 1 and 2, is characterized in that: described auxiliary burner blower adopts 9-19-5.6 blower fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410112828.6A CN103882172B (en) | 2014-03-25 | 2014-03-25 | A kind of blast funnace hot blast stove attemperator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410112828.6A CN103882172B (en) | 2014-03-25 | 2014-03-25 | A kind of blast funnace hot blast stove attemperator |
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| CN103882172A true CN103882172A (en) | 2014-06-25 |
| CN103882172B CN103882172B (en) | 2015-12-09 |
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| CN201410112828.6A Expired - Fee Related CN103882172B (en) | 2014-03-25 | 2014-03-25 | A kind of blast funnace hot blast stove attemperator |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB940654A (en) * | 1959-07-16 | 1963-10-30 | Zimmermann & Jansen Gmbh | Improvements in control installations for regeneratively heated hot blast stoves |
| CN2861170Y (en) * | 2006-01-09 | 2007-01-24 | 郑州豫兴耐火材料有限公司 | External-combustion ceramic burner for blast furnace hot blast stove |
| CN201218518Y (en) * | 2008-02-04 | 2009-04-08 | 山西太钢不锈钢股份有限公司 | Coke oven combustion controller |
| CN101792837A (en) * | 2010-01-26 | 2010-08-04 | 北京首钢国际工程技术有限公司 | High-temperature low-oxygen top-combustion-type air heating furnace |
| CN202610253U (en) * | 2012-05-21 | 2012-12-19 | 鞍钢股份有限公司 | Air supply device of preheating furnace |
| CN202968587U (en) * | 2012-12-15 | 2013-06-05 | 武钢集团昆明钢铁股份有限公司 | Top combustion stove capable of effectively preventing temperature of combustor from rising excessively |
-
2014
- 2014-03-25 CN CN201410112828.6A patent/CN103882172B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB940654A (en) * | 1959-07-16 | 1963-10-30 | Zimmermann & Jansen Gmbh | Improvements in control installations for regeneratively heated hot blast stoves |
| CN2861170Y (en) * | 2006-01-09 | 2007-01-24 | 郑州豫兴耐火材料有限公司 | External-combustion ceramic burner for blast furnace hot blast stove |
| CN201218518Y (en) * | 2008-02-04 | 2009-04-08 | 山西太钢不锈钢股份有限公司 | Coke oven combustion controller |
| CN101792837A (en) * | 2010-01-26 | 2010-08-04 | 北京首钢国际工程技术有限公司 | High-temperature low-oxygen top-combustion-type air heating furnace |
| CN202610253U (en) * | 2012-05-21 | 2012-12-19 | 鞍钢股份有限公司 | Air supply device of preheating furnace |
| CN202968587U (en) * | 2012-12-15 | 2013-06-05 | 武钢集团昆明钢铁股份有限公司 | Top combustion stove capable of effectively preventing temperature of combustor from rising excessively |
Non-Patent Citations (1)
| Title |
|---|
| 周宇杰等: "邯钢5#高炉热风炉保温实践", 《2008年中小高炉炼铁学术年会论文集》 * |
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| CN103882172B (en) | 2015-12-09 |
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