CN101408383B - Air input system, annular air duct and annular fluid bath of circular cooler - Google Patents
Air input system, annular air duct and annular fluid bath of circular cooler Download PDFInfo
- Publication number
- CN101408383B CN101408383B CN2008101790011A CN200810179001A CN101408383B CN 101408383 B CN101408383 B CN 101408383B CN 2008101790011 A CN2008101790011 A CN 2008101790011A CN 200810179001 A CN200810179001 A CN 200810179001A CN 101408383 B CN101408383 B CN 101408383B
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- annular
- liquid
- circular
- air
- annular passage
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D15/00—Handling or treating discharged material; Supports or receiving chambers therefor
- F27D15/02—Cooling
Abstract
The invention discloses a circular cooler air-feeding system, comprising an circular air pipe and a branch air pipe communicated with the circular air pipe; the branch air pipe is communicated with an circular air channel; the outlet of the circular air channel is communicated with a trolley air inlet pipe which is communicated with a trolley; the circular air channel consists of a circular liquid cell and a door-shaped sealing device; the door-shaped sealing device is connected with the trolley air inlet pipe; the circular liquid cell is covered by a sealing cover plate of the door-shaped sealing device; a door-shaped air-channel inner circular plate and a door-shaped air-channel outer circular plate of the door-shaped sealing device are extended downward to be below the liquid level of the circular liquid cell; the circular liquid cell consists of a circular air-channel liquid-groove inner circular plate, a circular air-channel liquid-groove outer circular plate, a liquid cell inner circular plate and a liquid cell outer circular plate; and the inner circular plate and outer circular plate of the circular air-channel liquid cell are all provided with the double-layer wall structure in the high-temperature zone of the circular cooler. The invention also discloses the circular air channel and the circular liquid cell of the circular cooler. The invention can prevent the liquid in the circular liquid cell from being gasified when the hot off-gas of the circular cooler is recycled so as to guarantee the normal work of the circular cooler.
Description
Technical field
The present invention relates to field of iron and steel smelting, particularly a kind of air intake system of circular cooler and annular passage, and annular liquid flume.
Background technology
In smelting iron and steel, central cooler is used to cool off the material of sintering.Central cooler integral body is annular, and the material of sintering moves a week by chassis in central cooler, finishes cooling and discharging.Referring to Fig. 1, be radially (sensing central cooler center) cutaway view of central cooler 10, the material of finishing sintering is laid on the grate plate 12 of chassis 11, and chassis 11 is around central cooler 10 center uniform rotation.Simultaneously, the cold wind that the air blast (not shown) is blown into passes grate plate 12 from bottom to top and enters chassis, carry out sufficient heat exchange with material on the grate plate 12 after, discharge from smokejack 13 as hot flue gas.
Referring to Fig. 2, overall schematic for central cooler 10, central cooler 10 is divided into I district, high-temperature region, middle warm area II district, low-temperature space III district and IV district, non-cooling zone, the material that the sintering machine (not shown) is finished sintering is transported on the chassis 11 of central cooler 10 in the high-temperature region, at this moment, temperature of charge is between 700 ℃-800 ℃, and the cooling air of normal temperature is after this high-temperature region and material sufficient heat exchange, become the high-temperature flue gas that temperature reaches 350 ℃-400 ℃, discharge from smokejack 13.
Chassis 11 moves to middle warm area behind the high-temperature region, through the cooling of high-temperature region, temperature of charge decreases, and therefore, the flue-gas temperature that middle warm area is discharged is between 200 ℃-350 ℃.Behind the warm area, chassis 11 moves to low-temperature space in the process, and this moment, temperature of charge was further lower, and the temperature of low-temperature space discharging flue gas generally is lower than 200 ℃.Behind low-temperature space, temperature of charge is reduced to below 150 ℃, is admitted to subsequent processing in non-cooling zone, finishes the material cooling.
In the material cooling procedure, have a large amount of hot flue gases and directly enter atmosphere, not only cause atmosphere pollution, also cause the waste of the energy.Be environmental protection and energy saving, part iron enterprise reclaims the hot flue gas of high-temperature region, utilizes the heat energy of high-temperature flue gas to generate electricity, heats up water.Be to improve the temperature of high-temperature region discharging flue gas, the hot flue gas of warm area discharging in can collecting as the cooling air of high-temperature region, cools off the material of high-temperature region.Perhaps, the hot flue gas (150 ℃-180 ℃) of discharging after the UTILIZATION OF VESIDUAL HEAT IN is as the cooling air of high-temperature region, and the material of high-temperature region is cooled off.
Referring to Fig. 3, radial cross-section for the annular passage of central cooler 10, hot flue gas with uniform temperature is from passing through annular passage 33 down, the continuing of hot flue gas passes through, can heat the annular passage liquid bath inner ring plate 341 and the annular passage liquid bath outer ring plate 342 of annular water tank 34, annular passage liquid bath inner ring plate 341 relative annular passage liquid bath outer ring plates 342 are near central cooler 10 centers one side, and then annular water tank 34 interior liquid are heated up, liquid reaches uniform temperature and will vaporize, the liquid of vaporization enters the chassis (not shown) with hot flue gas, the dust material is bonded on the grate plate (not shown) of chassis, it is ventilative to influence grate plate, dust material on the dull and stereotyped (not shown) of chassis lower floor is bonded on lower floor's flat board, influences the static seal of chassis.
Summary of the invention
The purpose of this invention is to provide a kind of air intake system of circular cooler, this air inlet system utilizes in the process at the hot flue gas of central cooler again, can prevent the vaporizing liquid in the annular water tank, guarantees the central cooler operate as normal.
Another purpose of the present invention provides a kind of annular passage of central cooler, and this annular passage is used for central cooler, utilizes in the process at the hot flue gas of central cooler again, can prevent the vaporizing liquid in the annular water tank, guarantees the central cooler operate as normal.
Another object of the present invention provides a kind of annular liquid flume of central cooler, and this annular water tank is used for annular passage, utilizes in the process at the hot flue gas of central cooler again, can prevent inner vaporizing liquid, guarantees the central cooler operate as normal.
The present invention discloses a kind of air intake system of circular cooler, comprises air loop duct, is communicated with the branch branch wind pipe of described air loop duct, and branch wind pipe was communicated to annular passage in described minute, and the outlet of described annular passage is communicated with the chassis blast pipe, and described chassis blast pipe is communicated with chassis; Described annular passage is made up of annular liquid flume and door shape sealing device, described door shape sealing device is connected on the described chassis blast pipe, the seal cover board of described door shape sealing device covers on the described annular liquid flume, and the door shape air channel inner ring plate of described door shape sealing device and door shape air channel outer ring plate extend downwardly into below the liquid level of described annular liquid flume; Described annular liquid flume by the annular passage liquid bath inner ring plate of annular, annular passage liquid bath outer ring plate, the inboard ring flat-plate of liquid bath, and liquid bath outside ring flat-plate form, described annular passage liquid bath inner ring plate and annular passage liquid bath outer ring plate are the double wall nested structure in the central cooler high-temperature region.
Preferably, the bottom opening of described double wall cover makes the air in the described double wall cover be communicated with atmosphere.
Preferably, fill heat insulation object between the described double wall cover.
Preferably, the spacing range of described double wall cover is 50mm-120mm.
The present invention also discloses a kind of annular passage of central cooler, described annular passage is made up of annular liquid flume and door shape sealing device, described door shape sealing device is connected on the described chassis blast pipe, the seal cover board of described door shape sealing device covers on the described annular liquid flume, and the door shape air channel inner ring plate of described door shape sealing device and door shape air channel outer ring plate extend downwardly into below the liquid level of described annular liquid flume; Described annular liquid flume by the annular passage liquid bath inner ring plate of annular, annular passage liquid bath outer ring plate, the inboard ring flat-plate of liquid bath, and liquid bath outside ring flat-plate form, described annular passage liquid bath inner ring plate and annular passage liquid bath outer ring plate are the double wall nested structure in the central cooler high-temperature region.
Preferably, the bottom opening of described double wall cover makes the air in the described double wall cover be communicated with atmosphere.
Preferably, the spacing range of described double wall cover is 50mm-120mm.
The present invention discloses a kind of annular liquid flume of central cooler again, described annular liquid flume by the annular passage liquid bath inner ring plate of annular, annular passage liquid bath outer ring plate, the inboard ring flat-plate of liquid bath, and liquid bath outside ring flat-plate form, described annular passage liquid bath inner ring plate and annular passage liquid bath outer ring plate are the double wall nested structure in the high-temperature region of central cooler.
Preferably, the bottom opening of described double wall cover makes the air in the described double wall cover be communicated with atmosphere.
Preferably, the spacing range of described double wall cover is 50mm-120mm.
Compared with prior art, the present invention has the following advantages:
The annular passage liquid bath inner ring plate of annular liquid flume of the present invention and annular passage liquid bath outer ring plate are the double wall cover in the central cooler high-temperature region.The double wall cover comprises inner layer wall cover and outer wall cover, the middle temperature flue gas that passes through in the air channel at first heats this inner layer wall cover, the heat of inner layer wall cover is delivered to the outer wall cover through insulating course, heat can significantly reduce, the temperature of outer wall cover does not have lifting by a relatively large margin, the liquid that directly contacts with the outer wall cover just can not rise to the vaporizable temperature yet, avoids liquid vapour to enter chassis from the air channel, influences the chassis operate as normal.
Description of drawings
Fig. 1 is the radial cross-section of existing central cooler;
Fig. 2 is the overall schematic of existing central cooler;
Fig. 3 is the radial cross-section of the annular passage of central cooler;
Fig. 4 is the radial cross-section of central cooler of the present invention in the high-temperature region;
Fig. 5 is the overall schematic of central cooler of the present invention;
Fig. 6 is the radial cross-section of annular passage one embodiment of the present invention;
Fig. 7 is the radial cross-section of another embodiment of annular passage of the present invention;
Fig. 8 is the radial cross-section of the another embodiment of annular passage of the present invention.
The specific embodiment
The present invention improves the air inlet system of central cooler high-temperature region, the annular passage liquid bath inner ring plate of annular liquid flume and annular passage liquid bath outer ring plate are set to the double wall cover in the air inlet system, the hot flue gas of avoiding passing through in the air channel directly heats the interior liquid of annular liquid flume, effectively prevent liquid intensification vaporization, and influence the operate as normal of other equipment of central cooler.
Referring to Fig. 4, Fig. 4 is the radial cross-section of central cooler 30 in the high-temperature region, and air loop duct 31 is provided with branch branch wind pipe 32, divides branch wind pipe 32 to be communicated to the inlet of annular passage 33.Each outlet of annular passage 33 is communicated with each chassis blast pipe 36 respectively, and chassis blast pipe 36 is fixed on the inner seal plate 371 of chassis 37, is responsible for cold wind is sent into chassis 37.
Referring to Fig. 5, Fig. 6, Fig. 5 is central cooler 30 overall schematic, and Fig. 6 is the radial cross-section of annular passage 33 1 embodiment.Annular passage 33 is made up of annular liquid flume 34 and door shape seal cover board 35, and door shape seal cover board 35 is connected on the chassis blast pipe 36.Annular liquid flume 34 is made up of annular passage liquid bath inner ring plate 341, annular passage liquid bath outer ring plate 342, the inboard ring flat-plate 343 of liquid bath, liquid bath outside ring flat-plate 344 and liquid bath base plate 345, and annular passage liquid bath inner ring plate 341 relative annular passage liquid bath outer ring plates 342 are near central cooler 10 centers one side.Liquid bath base plate 345 is arranged on the bottom of the annular region that the inboard ring flat-plate 343 of annular passage liquid bath inner ring plate 341, annular passage liquid bath outer ring plate 342, liquid bath, liquid bath outside ring flat-plate 344 surround, and the space of formation is used to deposit liquid.The space that annular passage liquid bath inner ring plate 341, annular passage liquid bath outer ring plate 342 surround, and the space of liquid level top is used for ventilating.
Door shape seal cover board 35 is made up of seal cover board 351, door shape air channel inner ring plate 352 and door shape air channel outer ring plate 353.Seal cover board 351 is installed on the chassis blast pipe 36, and seal cover board 351 is arranged on the top of annular liquid flume 34, but does not contact with annular liquid flume 34.Door shape air channel inner ring plate 352 and door shape air channel outer ring plate 353 are installed in the both sides of seal cover board 351 respectively, and extend downwardly into below the liquid level of annular liquid flume 34.Like this, annular liquid flume 34 and door shape sealing device 35 surround the seal cavity of an annular, and owing to stopping of water, the middle temperature flue gases in the annular passage 33 can't leak from the slit of seal cover board 35 and annular liquid flume 34.
The annular passage liquid bath inner ring plate 341 and the annular passage liquid bath outer ring plate 342 of annular liquid flume 34 are the double wall cover in the high-temperature region.The double wall cover comprises inner layer wall cover 34a and outer wall cover 34b, inner layer wall cover 34a directly contacts with the air channel, the middle temperature flue gas that passes through in the air channel at first heats this inner layer wall cover 34a, be separated with insulating course 34c between inner layer wall cover 34a and outer wall cover 34b, the heat of inner layer wall cover 34a is delivered to outer wall cover 34b through insulating course 34c, heat can significantly reduce, the temperature of outer wall cover 34b does not have lifting by a relatively large margin, the liquid that directly contacts with outer wall cover 34b just can not rise to the vaporizable temperature yet, avoid liquid vapour to enter chassis 37 from the air channel, influence the operate as normal of chassis 37.
Referring to Fig. 7, be the radial cross-section of annular passage 33 another embodiment, among this embodiment, the bottom of double wall cover is hatch frame 34f, allows the air in the double wall cover communicate with atmosphere.Like this, temperature rising as inner layer wall cover 34a, when the air in the insulating course 34c increases, because gas pressure, air in the insulating course 34c circulates mutually with the atmosphere in the external world, makes air themperature reduction in the insulating course 34c, prevents that further outer wall cover 34b temperature from raising, allow outer wall cover 34b be in, guarantee that fluid temperature is unlikely too high in the annular liquid flume 34 near the normal temperature state.
Generally speaking, the temperature range of middle temperature flue gas is 200 ℃-350 ℃, but the width relative set of insulating course 34c is 50mm-120mm, and the width of insulating course 34c is big more, and insulating course 34c inner air flow is good more, and the thermal insulation of double wall cover is also just good more.
Referring to Fig. 8, be the radial cross-section of annular passage 33 another embodiment, among this embodiment, fill thermal barrier 40 in the double wall cover, as the lime cotton etc.When the temperature rising of inner layer wall cover 34a, the thermal barrier 40 in the insulating course 34c can hinder the transmission of heat to a certain extent, and allowing outer wall overlap the 34b temperature can be not too high, guarantees that the temperature of liquid in the annular liquid flume 34 does not have rising by a relatively large margin.
The present invention not only may be used in the central cooler of field of iron and steel smelting, and the heat energy that also may be used on other field utilizes in the system again, for example, and manufacture of cement, fields such as generating.The above only is a preferred implementation of the present invention, does not constitute the qualification to protection domain of the present invention.Any any modification of being done within the spirit and principles in the present invention, be equal to and replace and improvement etc., all should be included within the claim protection domain of the present invention.
Claims (10)
1. an air intake system of circular cooler is characterized in that, comprises air loop duct, is communicated with the branch branch wind pipe of described air loop duct, and branch wind pipe was communicated to annular passage in described minute, and the outlet of described annular passage is communicated with the chassis blast pipe, and described chassis blast pipe is communicated with chassis;
Described annular passage is made up of annular liquid flume and door shape sealing device, described door shape sealing device is connected on the described chassis blast pipe, the seal cover board of described door shape sealing device covers on the described annular liquid flume, and the door shape air channel inner ring plate of described door shape sealing device and door shape air channel outer ring plate extend downwardly into below the liquid level of described annular liquid flume;
Described annular liquid flume by the annular passage liquid bath inner ring plate of annular, annular passage liquid bath outer ring plate, the inboard ring flat-plate of liquid bath, and liquid bath outside ring flat-plate form, described annular passage liquid bath inner ring plate and annular passage liquid bath outer ring plate are the double wall nested structure in the central cooler high-temperature region.
2. air inlet system as claimed in claim 1 is characterized in that, the bottom opening of described double wall cover makes the air in the described double wall cover be communicated with atmosphere.
3. air inlet system as claimed in claim 1 is characterized in that, fills heat insulation object between the described double wall cover.
4. as claim 2 or 3 described air inlet systems, it is characterized in that the spacing range of described double wall cover is 50mm-120mm.
5. the annular passage of a central cooler, it is characterized in that, described annular passage is made up of annular liquid flume and door shape sealing device, described door shape sealing device is connected on the described chassis blast pipe, the seal cover board of described door shape sealing device covers on the described annular liquid flume, and the door shape air channel inner ring plate of described door shape sealing device and door shape air channel outer ring plate extend downwardly into below the liquid level of described annular liquid flume;
Described annular liquid flume by the annular passage liquid bath inner ring plate of annular, annular passage liquid bath outer ring plate, the inboard ring flat-plate of liquid bath, and liquid bath outside ring flat-plate form, described annular passage liquid bath inner ring plate and annular passage liquid bath outer ring plate are the double wall nested structure in the central cooler high-temperature region.
6. annular passage as claimed in claim 5 is characterized in that, the bottom opening of described double wall cover makes the air in the described double wall cover be communicated with atmosphere.
7. as claim 5 or 6 described annular passages, it is characterized in that the spacing range of described double wall cover is 50mm-120mm.
8. the annular liquid flume of a central cooler, it is characterized in that, described annular liquid flume by the annular passage liquid bath inner ring plate of annular, annular passage liquid bath outer ring plate, the inboard ring flat-plate of liquid bath, and liquid bath outside ring flat-plate form, described annular passage liquid bath inner ring plate and annular passage liquid bath outer ring plate are the double wall nested structure in the high-temperature region of central cooler.
9. annular liquid flume as claimed in claim 8 is characterized in that, the bottom opening of described double wall cover makes the air in the described double wall cover be communicated with atmosphere.
10. annular liquid flume as claimed in claim 8 or 9 is characterized in that, the spacing range of described double wall cover is 50mm-120mm.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101790011A CN101408383B (en) | 2008-11-21 | 2008-11-21 | Air input system, annular air duct and annular fluid bath of circular cooler |
| BRPI0921623 BRPI0921623B1 (en) | 2008-11-21 | 2009-11-20 | circular radiator air intake system, annular air duct and annular liquid tub |
| PCT/CN2009/075051 WO2010057440A1 (en) | 2008-11-21 | 2009-11-20 | Circular cooler air intake system, annular air channel and annular flume |
| UAA201105739A UA100451C2 (en) | 2008-11-21 | 2009-11-20 | Circular cooler air intake system, annular air channel and annular flume |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101790011A CN101408383B (en) | 2008-11-21 | 2008-11-21 | Air input system, annular air duct and annular fluid bath of circular cooler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101408383A CN101408383A (en) | 2009-04-15 |
| CN101408383B true CN101408383B (en) | 2010-09-01 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101790011A Active CN101408383B (en) | 2008-11-21 | 2008-11-21 | Air input system, annular air duct and annular fluid bath of circular cooler |
Country Status (4)
| Country | Link |
|---|---|
| CN (1) | CN101408383B (en) |
| BR (1) | BRPI0921623B1 (en) |
| UA (1) | UA100451C2 (en) |
| WO (1) | WO2010057440A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102261850A (en) * | 2011-09-08 | 2011-11-30 | 中冶华天工程技术有限公司 | Water-sealed circular cooler |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101408383B (en) * | 2008-11-21 | 2010-09-01 | 中冶长天国际工程有限责任公司 | Air input system, annular air duct and annular fluid bath of circular cooler |
| CN101929804B (en) * | 2009-06-26 | 2012-06-06 | 中冶长天国际工程有限责任公司 | Circular cooler air inlet system |
| CN101598501B (en) * | 2009-07-09 | 2011-01-12 | 中冶长天国际工程有限责任公司 | Annular airduct |
| CN101608871B (en) * | 2009-07-24 | 2010-11-03 | 中冶长天国际工程有限责任公司 | Circular air duct end sealing transition region anti-liquid wave suppression device |
| CN101865605B (en) * | 2010-07-07 | 2011-12-07 | 中冶长天国际工程有限责任公司 | Circular cooler and circular air duct sealing and isolating device thereof |
| CN102466413B (en) * | 2010-11-08 | 2013-08-28 | 中冶长天国际工程有限责任公司 | Circular cooler and liquid groove desilting device thereof |
| CN103629940B (en) * | 2012-08-28 | 2015-04-08 | 高玉宗 | Cooling device for annular cooling machine and annular cooling machine |
| CN103062413B (en) * | 2013-01-23 | 2015-05-13 | 中冶长天国际工程有限责任公司 | Annular cooler and non-cooling-area liquid sealing device thereof |
| CN106124136B (en) * | 2016-06-24 | 2019-09-20 | 宝山钢铁股份有限公司 | A kind of sintering ring cold machine trolley air leak rate of air curtain on-line testing method |
| CN107631637B (en) * | 2017-11-15 | 2023-10-20 | 中冶北方（大连）工程技术有限公司 | Anti-deposition liquid tank of liquid sealing system of annular cooler |
| CN110243189A (en) * | 2019-07-16 | 2019-09-17 | 宝鸡市晋旺达机械设备有限公司 | A kind of water sealing device and ring cold machine of agglomerating plant |
| CN113587660A (en) * | 2021-08-03 | 2021-11-02 | 攀钢集团西昌钢钒有限公司 | Cold quick-witted door type sealing device of water-stop ring |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5424980A (en) * | 1977-07-26 | 1979-02-24 | Yamaha Motor Co Ltd | Manufacture of double layer pipe with heat insulator |
| CN2300809Y (en) * | 1997-07-24 | 1998-12-16 | 李怀军 | Gasifying combustion-aid structure for efficient energy-saving burner |
| CN100567868C (en) * | 2007-09-03 | 2009-12-09 | 中冶长天国际工程有限责任公司 | A kind of improved rotary forced-air cooler |
| CN100573005C (en) * | 2007-09-03 | 2009-12-23 | 中冶长天国际工程有限责任公司 | A kind of air duct water sealing shock wave device that is used for central cooler |
| CN101408383B (en) * | 2008-11-21 | 2010-09-01 | 中冶长天国际工程有限责任公司 | Air input system, annular air duct and annular fluid bath of circular cooler |
-
2008
- 2008-11-21 CN CN2008101790011A patent/CN101408383B/en active Active
-
2009
- 2009-11-20 UA UAA201105739A patent/UA100451C2/en unknown
- 2009-11-20 BR BRPI0921623 patent/BRPI0921623B1/en active IP Right Grant
- 2009-11-20 WO PCT/CN2009/075051 patent/WO2010057440A1/en active Application Filing
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102261850A (en) * | 2011-09-08 | 2011-11-30 | 中冶华天工程技术有限公司 | Water-sealed circular cooler |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101408383A (en) | 2009-04-15 |
| WO2010057440A1 (en) | 2010-05-27 |
| BRPI0921623A2 (en) | 2016-01-05 |
| BRPI0921623B1 (en) | 2019-12-03 |
| UA100451C2 (en) | 2012-12-25 |
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