CN104344727A - Annular cooler and cooling air transfer device and trolley air intake tube thereof - Google Patents
Annular cooler and cooling air transfer device and trolley air intake tube thereof Download PDFInfo
- Publication number
- CN104344727A CN104344727A CN201310328475.9A CN201310328475A CN104344727A CN 104344727 A CN104344727 A CN 104344727A CN 201310328475 A CN201310328475 A CN 201310328475A CN 104344727 A CN104344727 A CN 104344727A
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- China
- Prior art keywords
- trolley
- chassis
- valve
- ventilating
- cooling
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B21/00—Open or uncovered sintering apparatus; Other heat-treatment apparatus of like construction
- F27B21/06—Endless-strand sintering machines
-
- 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
- F27D99/00—Subject matter not provided for in other groups of this subclass
- F27D99/0073—Seals
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Harvester Elements (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
The invention discloses a trolley air intake tube of an annular cooler. The trolley air intake tube is used for communicating a trolley air inlet with an air outlet of a door-type sealing device. A ventilation valve is arranged on the trolley air intake tube so as to control opening or closing of the trolley air intake tube. Preferably, the ventilation area of the ventilation valve is equal to larger than that of the trolley air intake tube. The problem that an annular air duct causes short circuit to the atmosphere in a non-cooling area can be avoided completely, and cooling air is delivered to a trolley in the cooling area reliably. On the basis, the invention further provides the annular cooler applying the trolley air intake tube and a cooling air transfer device of the annular cooler.
Description
Technical field
The present invention relates to field of iron and steel smelting, particularly a kind of central cooler and cooling air grass-hopper, trolley air inlet pipe.
Background technology
In iron and steel enterprise, central cooler is arranged at sintering circuit and mineral aggregate enters between furnaceman's sequence, for cooling the mineral aggregate of sintering, is annular in body.Existing central cooler mainly adopts forced-air blast air cooling way to cool the material on circular cooler trolley.In chassis operation process, mineral aggregate to be cooled from the feed chute 16 of non-cooled district I loading station continuously and equably cloth be placed on the mineral aggregate spatial accommodation above trolley grating plate, enter after in cooling zone and cooled mineral aggregate by pressure wind, the unloading station that then each circular cooler trolley enters non-cooled district I realizes discharging through dump skip 17.Each chassis completes all processes that cooling, discharging and reset are feeded after returning in central cooler and circling.
As everyone knows, chassis 10 as pressure wind terminal use is motions, and be fixed as the air blast of power source (or pressure source), so (or in blower system) must arrange a cooling air grass-hopper, i.e. annular passage 11 in cooling air induction system between air blast to motion chassis.Please also refer to Fig. 1 and Fig. 2, wherein, Fig. 1 is the overall structure schematic diagram of existing central cooler; Fig. 2 is the A-A sectional view of Fig. 1.
Cooling air sends into (not shown) in air loop duct by several air blasts, and enters the annular passage 11 be made up of annular liquid flume 14 and gate sealing device 15 through blast pipe 13, and the air outlet 151 of gate sealing device 15 is communicated with trolley air inlet pipe 12.As shown in Figure 1, the region of central cooler after chassis charging to chassis discharging is cooling zone, and the region before from chassis discharging to the charging again that resets is non-cooled district.Please also refer to Fig. 3, the figure shows the B-B partial sectional view in the non-cooled district of central cooler shown in Fig. 1.
During central cooler work, be on the chassis within the scope of cooling zone and filled material, pass on from annular passage the cooling air that enters chassis via trolley air inlet pipe and carry out heat exchange with material, then discharge chassis from charge level, cooling air serves the effect cooling material.But, the chassis be within the scope of non-cooled district is empty material chassis, sky is expected that chassis has been communicated with annular passage by the trolley air inlet pipe of this station, annular passage cooling air must be caused air short circuit, not only can lose huge air quantity, strengthen fan energy use, also can form a large amount of dust affects environment.
In view of this, the cooling air technology of passing on urgently for existing circular cooler trolley is optimized design, meeting on the basis of cooling zone chassis reliable delivery cooling air, can evade annular passage completely in non-cooled district to air short circuit.
Summary of the invention
For above-mentioned defect, the technical problem that the present invention solves is, provides a kind of circular cooler trolley blast pipe, to evade the problem of annular passage in non-cooled district to air short circuit completely, guarantees to cooling zone chassis reliable delivery cooling air.On this basis, the present invention also provides a kind of central cooler and cooling air grass-hopper thereof of this trolley air inlet pipe of application.
Circular cooler trolley blast pipe provided by the invention, for being communicated with the air outlet of chassis air inlet and gate sealing device; Described trolley air inlet pipe is provided with Ventilating valve, to control conducting or the cut-off of described trolley air inlet pipe.
Preferably, described Ventilating valve is butterfly valve.
Preferably, described Ventilating valve is specially electrically ventilating butterfly valve, pneumatic ventilation butterfly valve or the butterfly valve that manually ventilates.
Preferably, the draught area of described Ventilating valve is equal to or greater than the draught area of described trolley air inlet pipe.
Central cooler cooling air grass-hopper provided by the invention, comprises the annular passage be made up of annular liquid flume and gate sealing device, and the trolley air inlet pipe that arrange corresponding to each chassis; Described trolley air inlet pipe is provided with Ventilating valve, to control conducting or the cut-off of described trolley air inlet pipe.
Preferably, described Ventilating valve is specially electrically ventilating butterfly valve or pneumatic ventilation butterfly valve.
Preferably, also comprise signal element, according to the operating position output switch control signal of described chassis, to control opening or closing of described Ventilating valve.
Preferably, the operating position of described chassis is detected by two position detection unit, two described position detection unit are separately positioned on the position, two boundaries of non-cooled district and cooling zone: primary importance is the intersection after chassis is feeded and before ventilating and cooling, primary importance detecting unit is arranged at described primary importance, and exporting the first signal that chassis enters cooling zone, described signal element opens control signal according to described first signal output valve; The second place is the intersection before chassis discharging and after ventilating and cooling, and second place detecting unit is arranged at the described second place, and exports the secondary signal that chassis enters non-cooled district, and described signal element is according to described secondary signal output valve closing control signal.
Preferably, described position detection unit is travel switch or proximity switch.
Central cooler provided by the invention, comprises cooling air grass-hopper, and described cooling air grass-hopper is specially foregoing central cooler cooling air grass-hopper.
Based on the air-cooled central cooler cooled material on chassis of employing forced-air blast, the trolley air inlet pipe that the present invention is directed to cooling air grass-hopper has carried out Curve guide impeller, particularly, trolley air inlet pipe is provided with Ventilating valve, to control conducting or the cut-off of trolley air inlet pipe.Setting like this, conducting or the cut-off of trolley air inlet pipe can be controlled as required, when chassis move to before discharging with ventilating and cooling after intersection time, this Ventilating valve can be closed, and when chassis moves to the intersection after charging and before ventilating and cooling, this Ventilating valve can be opened, there is feature simple and reasonable for structure, both can avoid annular passage in non-cooled district to air short circuit, and can normally make in cooling zone annular passage provide cooling air to chassis again.
Accompanying drawing explanation
Fig. 1 is the overall structure diagrammatic top view of existing central cooler;
Fig. 2 is the A-A sectional view of Fig. 1;
The B-B partial sectional view in the non-cooled district that Fig. 3 is central cooler shown in Fig. 1;
Fig. 4 shows the device relation schematic diagram of trolley air inlet pipe described in detailed description of the invention;
The switch control rule theory structure block diagram that Fig. 5 is Ventilating valve described in detailed description of the invention.
In Fig. 4 and Fig. 5:
Trolley air inlet pipe 41, chassis air inlet 42, gate sealing device air outlet 43, Ventilating valve 44, annular liquid flume 45, gate sealing device 46, signal element 47, primary importance detecting unit 48, second place detecting unit 49.
Detailed description of the invention
Core of the present invention is to provide a kind of circular cooler trolley blast pipe, fan energy use can be reduced by structure optimization, effectively control dust polluting environment problem simultaneously, compared with prior art, meeting on the basis of cooling zone chassis reliable delivery cooling air, annular passage can be evaded completely in non-cooled district to air short circuit.
Without loss of generality, present embodiment is illustrated below in conjunction with Figure of description.
In present embodiment, the basic function parts and the position annexation each other thereof that form central cooler are same as the prior art, can in the lump see Fig. 1 and Fig. 2.Specifically, each chassis is articulated with chassis backbar on front side of it, and inside the chassis of its trolley grating plate chassis backbar forward and backward with it and its both sides, outside sideboard and chassis, sideboard forms mineral aggregate spatial accommodation, and the circumference respectively along central cooler sets gradually; In the course of work, along the guide rail be fixedly arranged on support, chassis and backbar move around the center steering of central cooler, complete the operations such as cloth, cooling and discharging.Wherein, the operation of mineral aggregate is cooled by supply air system specific implementation; In the annular passage of supply air system, between cooling zone and the inside and outside ring flat-plate of gate sealing device corresponding to non-cooled district and critical part thereof, whole circle is communicated with.Here, the involved noun of locality is inside and outside to be defined using central cooler center as benchmark, and the involved noun of locality is forward and backward is for benchmark defines with the rotation direction of central cooler.
It should be noted that, the structure and working principle of aforementioned main function components is substantially identical with prior art, and those skilled in the art can realize completely based on prior art, therefore repeats no more herein.For elaborating the optimal design of circular cooler trolley blast pipe of the present invention, refer to Fig. 4, this figure is the assembly relation schematic diagram of the blast pipe of circular cooler trolley described in present embodiment.
This circular cooler trolley blast pipe 41 is for being communicated with chassis air inlet 42 and gate sealing device air outlet 43; Meanwhile, this trolley air inlet pipe 41 is provided with Ventilating valve 44, to control conducting or the cut-off of trolley air inlet pipe 41, that is can regulates its conducting state as required.When specifically arranging, Ventilating valve 44 can be arranged on the straight type section of trolley air inlet pipe 41, so that carry out processing assembling.Wherein, the magnitude setting of trolley air inlet pipe 41 can set according to actual needs; each trolley air inlet pipe 41 correspondence arranges a Ventilating valve 44, should be appreciated that the technical scheme that the magnitude setting of trolley air inlet pipe 41 is protected for the application's request is not construed as limiting.
This Ventilating valve 44 can adopt electrically ventilating butterfly valve, pneumatic ventilation butterfly valve or the butterfly valve that manually ventilates, and in the course of work, the disk closure member of butterfly valve rotates around valve shaft and realizes opening and closing.Certainly, aforementioned Ventilating valve 44 also can adopt the valve of other versions, and comparatively speaking, cut-out and the throttling of carrying out path of butterfly valve are optimal case simple and reliable for structurely.Further preferably, the draught area of Ventilating valve 44 is equal to or slightly greater than the draught area of trolley air inlet pipe 41, forms to avoid Ventilating valve 44 windage entering chassis cold air.
Wherein, adopt the electronic or pneumatic butterfly valve realizing valve opening operation to meet requirements for automatic control, can further improve operability.
On this basis, the present invention also provides a kind of central cooler cooling air grass-hopper.Same as the prior art, this cooling air grass-hopper comprises the annular passage be made up of annular liquid flume 45 and gate sealing device 46, and aforementioned trolley air inlet pipe 44.Similarly, concrete structure and the operation principle of annular liquid flume 45 and gate sealing device 46 are substantially identical with prior art, and those skilled in the art can realize completely based on prior art, repeats no more herein.
In order to realize the automatic control of electrically ventilating butterfly valve or pneumatic ventilation butterfly valve, also comprise signal element 47, this signal element 47 can according to the operating position output switch control signal of chassis, to control opening or closing of each Ventilating valve 44.Specifically, when chassis move to before discharging with ventilating and cooling after intersection time, close this Ventilating valve, and when chassis moves to the intersection after charging and before ventilating and cooling, open this Ventilating valve, both can avoid annular passage in non-cooled district to air short circuit, and can normally make in cooling zone annular passage provide cooling air to chassis again.
Obviously, need here to export control instruction signal according to two operating positions of chassis, lay respectively at the position, two boundaries of non-cooled district and cooling zone; Wherein, primary importance is the intersection C after chassis charging and before ventilating and cooling, and the second place is the intersection D before chassis discharging and after ventilating and cooling, and particular location can see shown in Fig. 3; Certainly; defining of operating position is not limited to the point of shown in figure; two operating positions in this programme should be the region in certain limit; as long as take into account cooling zone reliable delivery cooling air and non-cooled district avoids air short circuit two protocols call, all in the scope of the application's request protection.
Specifically, these two operating positions of chassis can be detected by two position detection unit, primary importance detecting unit 48 is arranged at primary importance, when chassis is through described primary importance, primary importance detecting unit 48 exports the first signal that chassis enters cooling zone, signal element 47 exports the control signal opening Ventilating valve 44 according to this first signal, and stays open state until this chassis completes material cooling, enters the described second place; Second place detecting unit 49 is arranged at the second place, and export the secondary signal that chassis enters non-cooled district, signal element 47 exports the control signal of closing Ventilating valve 44 according to secondary signal, and keep closed condition until this chassis enters described primary importance, enter next cyclic process more thus.
Operation principle of the present invention is sketched below in conjunction with Fig. 5.
During central cooler operation, running before chassis charging is backward, when chassis is in time being fixedly installed on the primary importance detecting unit 48 of intersection C on central cooler, Ventilating valve 44 is opened according to control instruction, and to valve wide open, also state maintains; Enter cooling zone, chassis is communicated with by the annular passage of trolley air inlet pipe with blower system cooling air grass-hopper, and the material that cooling air enters on chassis and chassis carries out heat exchange, then becomes heat smoke and discharges from material charge level.When chassis running is in time being fixedly installed on the second place detecting unit 49 of intersection D on central cooler, Ventilating valve 44 is closed according to control instruction, and to valve full cut-off, also state maintains; Enter non-cooled district, the annular passage of chassis and blower system cooling air grass-hopper cuts off, and the cooling air of annular passage no longer enters chassis, until trolley body to tilt discharging along Orbit unloaded skip, then to resetting, feeds complete.
In addition, two position detection unit in this programme can be travel switch or proximity switch, all accurately can obtain the target operational position of chassis.In addition, electrically ventilating butterfly valve is different with the drive form of pneumatic ventilation butterfly valve, and working control technology is slightly different, can control accordingly according to existing techniques in realizing respectively.
The foregoing is only the preferred embodiment of the present invention, do not form limiting the scope of the present invention.Any any amendment done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within claims of the present invention.
Claims (10)
1. circular cooler trolley blast pipe, for being communicated with the air outlet of chassis air inlet and gate sealing device; It is characterized in that, described trolley air inlet pipe is provided with Ventilating valve, to control conducting or the cut-off of described trolley air inlet pipe.
2. circular cooler trolley blast pipe according to claim 1, is characterized in that, described Ventilating valve is butterfly valve.
3. circular cooler trolley blast pipe according to claim 2, is characterized in that, described Ventilating valve is specially electrically ventilating butterfly valve, pneumatic ventilation butterfly valve or the butterfly valve that manually ventilates.
4. circular cooler trolley blast pipe according to any one of claim 1 to 3, is characterized in that, the draught area of described Ventilating valve is equal to or greater than the draught area of described trolley air inlet pipe.
5. central cooler cooling air grass-hopper, comprises the annular passage be made up of annular liquid flume and gate sealing device, and the trolley air inlet pipe that arrange corresponding to each chassis; It is characterized in that, described trolley air inlet pipe is provided with Ventilating valve, to control conducting or the cut-off of described trolley air inlet pipe.
6. central cooler cooling air grass-hopper according to claim 5, is characterized in that, described Ventilating valve is specially electrically ventilating butterfly valve or pneumatic ventilation butterfly valve.
7. central cooler cooling air grass-hopper according to claim 6, is characterized in that, also comprise signal element, according to the operating position output switch control signal of described chassis, to control opening or closing of described Ventilating valve.
8. central cooler cooling air grass-hopper according to claim 7, it is characterized in that, the operating position of described chassis is detected by two position detection unit, two described position detection unit are separately positioned on the position, two boundaries of non-cooled district and cooling zone: primary importance is the intersection after chassis is feeded and before ventilating and cooling, primary importance detecting unit is arranged at described primary importance, and exporting the first signal that chassis enters cooling zone, described signal element opens control signal according to described first signal output valve; The second place is the intersection before chassis discharging and after ventilating and cooling, and second place detecting unit is arranged at the described second place, and exports the secondary signal that chassis enters non-cooled district, and described signal element is according to described secondary signal output valve closing control signal.
9. central cooler cooling air grass-hopper according to claim 8, is characterized in that, described position detection unit is travel switch or proximity switch.
10. central cooler, comprises cooling air grass-hopper, it is characterized in that, described cooling air grass-hopper is specially the central cooler cooling air grass-hopper according to any one of claim 5 to 9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310328475.9A CN104344727B (en) | 2013-07-31 | 2013-07-31 | Central cooler and its cooling wind grass-hopper, trolley air inlet pipe |
| PCT/CN2014/082693 WO2015014223A1 (en) | 2013-07-31 | 2014-07-22 | Annular cooler, cooling air transfer device thereof and trolley air inlet pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310328475.9A CN104344727B (en) | 2013-07-31 | 2013-07-31 | Central cooler and its cooling wind grass-hopper, trolley air inlet pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104344727A true CN104344727A (en) | 2015-02-11 |
| CN104344727B CN104344727B (en) | 2017-04-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310328475.9A Active CN104344727B (en) | 2013-07-31 | 2013-07-31 | Central cooler and its cooling wind grass-hopper, trolley air inlet pipe |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN104344727B (en) |
| WO (1) | WO2015014223A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106257226A (en) * | 2015-06-17 | 2016-12-28 | 中冶长天国际工程有限责任公司 | Central cooler and chassis air inlet thereof |
| CN106839559A (en) * | 2016-12-20 | 2017-06-13 | 贵州安顺惠烽科技发展有限公司 | Simple air cooling equipment |
| CN111735313A (en) * | 2020-06-30 | 2020-10-02 | 中冶华天工程技术有限公司 | Novel sealing device of water sealing ring cooler |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107449282B (en) * | 2017-08-31 | 2023-06-16 | 中冶华天工程技术有限公司 | End sealing device of water sealing ring cooling machine |
| CN109282657B (en) * | 2018-10-17 | 2024-02-20 | 张志良 | Multi-point multi-face independent air supply static sealing ring cooling machine |
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| CN101738095A (en) * | 2008-11-21 | 2010-06-16 | 中冶长天国际工程有限责任公司 | Air inlet system for circular cooler and annular air passage and annular liquid tank |
| CN101929804A (en) * | 2009-06-26 | 2010-12-29 | 中冶长天国际工程有限责任公司 | Circular cooler air inlet system |
| EP2362174A1 (en) * | 2010-01-29 | 2011-08-31 | Claudius Peters Projects GmbH | Device for cooling bulk material |
| CN202141344U (en) * | 2011-07-11 | 2012-02-08 | 重庆钢铁(集团)有限责任公司 | Blast system of rotary forced-air cooler |
| CN202470758U (en) * | 2012-03-06 | 2012-10-03 | 杨东进 | Rotary sintering machine |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
| CN101424484B (en) * | 2008-11-12 | 2010-06-02 | 昆明阳光基业股份有限公司 | Control method and device for stabilizing and enhancing sintered ring cooling wind temperature while smelting steel |
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2013
- 2013-07-31 CN CN201310328475.9A patent/CN104344727B/en active Active
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2014
- 2014-07-22 WO PCT/CN2014/082693 patent/WO2015014223A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101738095A (en) * | 2008-11-21 | 2010-06-16 | 中冶长天国际工程有限责任公司 | Air inlet system for circular cooler and annular air passage and annular liquid tank |
| CN101929804A (en) * | 2009-06-26 | 2010-12-29 | 中冶长天国际工程有限责任公司 | Circular cooler air inlet system |
| EP2362174A1 (en) * | 2010-01-29 | 2011-08-31 | Claudius Peters Projects GmbH | Device for cooling bulk material |
| CN202141344U (en) * | 2011-07-11 | 2012-02-08 | 重庆钢铁(集团)有限责任公司 | Blast system of rotary forced-air cooler |
| CN202470758U (en) * | 2012-03-06 | 2012-10-03 | 杨东进 | Rotary sintering machine |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106257226A (en) * | 2015-06-17 | 2016-12-28 | 中冶长天国际工程有限责任公司 | Central cooler and chassis air inlet thereof |
| CN106257226B (en) * | 2015-06-17 | 2018-09-28 | 中冶长天国际工程有限责任公司 | Ring cold machine and its trolley air inlet |
| CN106839559A (en) * | 2016-12-20 | 2017-06-13 | 贵州安顺惠烽科技发展有限公司 | Simple air cooling equipment |
| CN111735313A (en) * | 2020-06-30 | 2020-10-02 | 中冶华天工程技术有限公司 | Novel sealing device of water sealing ring cooler |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2015014223A1 (en) | 2015-02-05 |
| CN104344727B (en) | 2017-04-05 |
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