CN202530109U - Waste heat recovery device utilizing waste heat of one-off high temperature flue gas of converter to directly calcine lime - Google Patents
Waste heat recovery device utilizing waste heat of one-off high temperature flue gas of converter to directly calcine lime Download PDFInfo
- Publication number
- CN202530109U CN202530109U CN2012201360782U CN201220136078U CN202530109U CN 202530109 U CN202530109 U CN 202530109U CN 2012201360782 U CN2012201360782 U CN 2012201360782U CN 201220136078 U CN201220136078 U CN 201220136078U CN 202530109 U CN202530109 U CN 202530109U
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- converter
- flue gas
- cooling
- housing
- pipe
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The utility model provides a waste heat recovery device utilizing waste heat of one-off high temperature flue gas of converter to directly calcine lime. The device comprises a converter, wherein the converter is connected with a vaporization cooling flue. An air inlet pipe is connected with a flue gas distribution pipe. A feeding inlet is arranged on the top of a lime pit shell, and a ring flue gas collecting pipe is arranged on the upper portion of an outer wall of the lime pit shell. A guide block is arranged at the center of the inside of the lime pit shell. A circular ring of the guide block is connected with the lime pit shell through an air supply pipeline and an air collecting pipeline. Side walls of the air supply pipeline and the air collecting pipeline are respectively provided with a plurality of through holes along the horizontal direction. The air supply pipeline is communicated with the flue gas distribution pipe. The flue gas collecting pipe is connected with a purification pipe, and the purification pipe is provided with a gravity dust remover, a bag-type dust remover and a draught fan. Waste heat of the one-off high temperature flue gas of the converter is used for calcining lime, purification and recycling of the one-off high temperature flue gas of converter is achieved without arranging a water treatment system, operation cost of equipment is greatly reduced and environment is not polluted.
Description
Technical field
The utility model relates to a kind of converter flue gas waste heat recovery apparatus, and the direct lime kilning of high-temperature flue gas of specifically a kind of converter is realized waste-heat recovery device.
Background technology
The purification of a flue gas of converter current is reclaimed and is adopted dual mode.A kind of is the wet purification recovery system, and this mode adopts saturated cooling, and high-temperature flue gas is through " two civilian towers ", and temperature gets into the primary air fan room again and reclaims or diffuse after being cooled to about 70 ℃ by 800-1000 ℃ of gasification cooling flue outlet; Another kind is the dry cleaning recovery system; This mode adopts transpiration cooling; High-temperature flue gas is through evaporative cooler, electric precipitator, gas cooler, and temperature is selected to reclaim or diffuse by switching station after being cooled to about 70 ℃ by 800-1000 ℃ of gasification cooling flue outlet.Above-mentioned dual mode; Converter gas reduces to that about 70 ℃ heat is absorbed by water through saturated or transpiration cooling and further directly cooling from 800 ℃; This part heat runs off fully and diffuses; Therefore all will dispose huge water treatment system in the dual mode, equipment running cost is higher, and environment is polluted.
The utility model content
The purpose of the utility model provides the direct lime kilning of high-temperature flue gas of a kind of converter and realizes purification recovery device; It can utilize the waste heat of converter high-temperature flue gas that lime is calcined, and makes the waste heat of a high-temperature flue gas of converter realize reclaiming, and water treatment system need be set; Significantly reduced the running cost of equipment; And environment is not polluted, and the lime calcining process can be carried out continuously, and production efficiency is higher.
The utility model is for realizing above-mentioned purpose; Realize through following technical scheme: comprise first converter and second converter, first converter is connected with first gasification cooling flue through first movable gas hood, and first gasification cooling flue is communicated with the first calcining piece housing top through first recovery channel; The first calcining piece housing lower end is connected with the first cooling section housing; First discharge valve is installed at the discharge port place of the first cooling section housing bottom, and second converter is connected with second gasification cooling flue through second movable gas hood, and second gasification cooling flue is communicated with the second calcining piece housing top through second recovery channel; The second calcining piece housing lower end is connected with the second cooling section housing; Second discharge valve is installed at the discharge port place of the second cooling section housing bottom, is communicated with through vent-pipe between the first cooling section housing and the second cooling section housing, and the first calcining piece housing and the second calcining piece housing all are communicated with feed-pipe; The first calcining piece housing is connected with sack cleaner through first smoke exhaust pipe; The second calcining piece housing is connected with sack cleaner through second smoke exhaust pipe, sack cleaner through discharge manifold with diffuse chimney and be connected installation flue gas blower fan on the discharge manifold; First gravitational precipitator and the first smoke evacuation valve are installed on first smoke exhaust pipe, second gravitational precipitator and the second smoke evacuation valve are installed on second smoke exhaust pipe.The first cooling section lower housing portion outer wall border is provided with first cooling jacket; The second cooling section lower housing portion outer wall border is provided with second cooling jacket; First cooling jacket is connected with cooling blower through first cold-air duct; Second cooling jacket is connected with cooling blower through second cold-air duct, and the first cold wind valve is set on first cold air duct, and the second cold wind valve is set on second cold air duct.The height on the first calcining piece housing and the second calcining piece housing bottom side edge edge is lower than the height of vent-pipe lower edge.
The advantage of the utility model is: can utilize the waste heat of converter high-temperature flue gas that lime is calcined, make high-temperature flue gas of converter realize purifying and reclaim, water treatment system need be set; Significantly reduced the running cost of equipment, and environment is not polluted, calcination process does not receive the influence of converter working order; In Converter Oxigen Blowing phase and non-oxygen blast phase, all can calcine Wingdale, flue gas can access rough purification in the calcination process, has reduced the dust content when flue gas gets into fly-ash separator; Help reducing the dedusting resistance, improve efficiency of dust collection, two-step filter is set effectively prevents sack cleaner paste bag; Can accomplish process of cooling immediately behind the lime calcining; Save the expense of setting up independent cooling system, and reduced operation steps, improved production efficiency; The lime calcining process can be carried out continuously, and production efficiency is more high.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Embodiment
The direct lime kilning of high-temperature flue gas of the described converter of the utility model is realized waste-heat recovery device; Comprise first converter 1 and second converter 2; First converter 1 is connected with first gasification cooling flue 4 through first movable gas hood 3; First gasification cooling flue 4 is communicated with the first calcining piece housing, 6 tops through first recovery channel 5, and the first calcining piece housing, 6 lower ends are connected with the first cooling section housing 7, and first discharge valve 8 is installed at the discharge port place of the first cooling section housing, 7 bottoms; Second converter 2 is connected with second gasification cooling flue 10 through second movable gas hood 9; Second gasification cooling flue 10 is communicated with the second calcining piece housing, 12 tops through second recovery channel 11, and the second calcining piece housing, 12 lower ends are connected with the second cooling section housing 13, and second discharge valve 14 is installed at the discharge port place of the second cooling section housing, 13 bottoms; Be communicated with through vent-pipe 15 between the first cooling section housing 7 and the second cooling section housing 13; The first calcining piece housing 6 and the second calcining piece housing 12 all are communicated with feed-pipe 16, and the first calcining piece housing 6 is connected with sack cleaner 18 through first smoke exhaust pipe 17, and the second calcining piece housing 12 is connected with sack cleaner 18 through second smoke exhaust pipe 19; Sack cleaner 18 through discharge manifold 22 with diffuse chimney 20 and be connected; Install on the discharge manifold 22 to install on flue gas blower fan 21, the first smoke exhaust pipes 17 on first gravitational precipitator 23 and the first smoke evacuation valve, 24, the second smoke exhaust pipes 19 second gravitational precipitator 25 and the second smoke evacuation valve 26 are installed.Before the use, Wingdale is inserted the first calcining piece housing 6 and the second calcining piece housing 12 through feed-pipe 16.When the utility model used, the smelting process of first converter 1 and second converter 2 hocketed, when first converter 1 is in smelting during the phase; Second converter 2 is in the non-smelting phase; This moment first, movable gas hood 3 rose, and a large amount of air that first converter, 1 fire door sucks make first converter 1 smelt the flue gas that produces fully to burn, and high-temperature flue gas gets into the first calcining piece housing 6 through first gasification cooling flue 4, first recovery channel 5; Waste heat through flue gas is calcined the Wingdale in the first calcining piece housing 6; Flue gas and Wingdale carry out heat exchange in the calcination process, and flue-gas temperature reduces, and the flue gas after the cooling gets into the second cooling section housing 13 through vent-pipe 15; And second smoke exhaust pipe 19 that passes through the second calcining piece housing, 12 tops gets into discharge manifold 22; Finally diffuse through diffusing chimney 20, the flue gas flow after the cooling can carry out preheating to the Wingdale in the second calcining piece housing 12 when the second calcining piece housing 12; When second converter 2 is in smelting during the phase; First converter 1 is in the non-smelting phase; This moment second, movable gas hood 9 rose, and a large amount of air that second converter, 2 fire doors suck make second converter 2 smelt the flue gas that produces fully to burn, and high-temperature flue gas gets into the second calcining piece housing 12 through second gasification cooling flue 10, second recovery channel 11; Waste heat through flue gas is calcined the Wingdale in the second calcining piece housing 12; Flue gas after the cooling gets into the first cooling section housing 7 through vent-pipe 15, and gets into discharge manifold 22 through first smoke exhaust pipe 17 at the first calcining piece housing, 6 tops, finally diffuses through diffusing chimney 20; Flue gas flow after the cooling can carry out preheating to the Wingdale in the first calcining piece housing 6 when the first calcining piece housing 6.Said process hockets, and can guarantee the continuous output of lime, and production efficiency is higher.In order to reduce the pollution of flue gas, can gravitational precipitator be set and sack cleaner carries out dedusting to flue gas to environment.
The utility model obtains cooling at once in order to make Wingdale in the cooling section housing after calcining; Can first cooling jacket 27 be set in outer wall border, the first cooling section housing, 7 bottom; Outer wall border, the second cooling section housing, 13 bottom is provided with second cooling jacket 28; First cooling jacket 27 is connected with cooling blower 30 through first cold-air duct 29; Second cooling jacket 28 is connected with cooling blower 30 through second cold-air duct 31, is provided with on first cold air duct 29 on the first cold wind valve, 32, the second cold air ducts 31 the second cold wind valve 33 is set.Cooling blower 30 is taken out the cold wind that draws can play cooling effect to the intravital lime of cooling section shell, has saved the expense of setting up independent cooling system, and has reduced operation steps, has improved production efficiency.
The utility model gets into vent-pipe 15 in order to prevent Wingdale, can adopt following structure: the height on the first calcining piece housing 6 and the second calcining piece housing, 12 bottom side edge edges is lower than the height of vent-pipe 15 lower edges.When Wingdale falls into the cooling section housing from the calcining piece housing,, therefore can not get into vent-pipe 15 because its deadweight is bigger.
Claims (3)
1. the direct lime kilning of high-temperature flue gas of converter is realized waste-heat recovery device; It is characterized in that: comprise first converter (1) and second converter (2); First converter (1) is connected with first gasification cooling flue (4) through first movable gas hood (3); First gasification cooling flue (4) is communicated with first calcining piece housing (6) top through first recovery channel (5); First calcining piece housing (6) lower end is connected with the first cooling section housing (7); First discharge valve (8) is installed at the discharge port place of first cooling section housing (7) bottom; Second converter (2) is connected with second gasification cooling flue (10) through second movable gas hood (9); Second gasification cooling flue (10) is communicated with second calcining piece housing (12) top through second recovery channel (11), and second calcining piece housing (12) lower end is connected with the second cooling section housing (13), and second discharge valve (14) is installed at the discharge port place of second cooling section housing (13) bottom; Be communicated with through vent-pipe (15) between the first cooling section housing (7) and the second cooling section housing (13); The first calcining piece housing (6) and the second calcining piece housing (12) all are communicated with feed-pipe (16), and the first calcining piece housing (6) is connected with sack cleaner (18) through first smoke exhaust pipe (17), and the second calcining piece housing (12) is connected with sack cleaner (18) through second smoke exhaust pipe (19); Sack cleaner (18) through discharge manifold (22) with diffuse chimney (20) and be connected; Discharge manifold (22) goes up installs flue gas blower fan (21), and first smoke exhaust pipe (17) is gone up first gravitational precipitator (23) and the first smoke evacuation valve (24) are installed, and second smoke exhaust pipe (19) is gone up second gravitational precipitator (25) and the second smoke evacuation valve (26) are installed.
2. the direct lime kilning of high-temperature flue gas of converter according to claim 1 is realized waste-heat recovery device; It is characterized in that: outer wall border, first cooling section housing (7) bottom is provided with first cooling jacket (27); Outer wall border, second cooling section housing (13) bottom is provided with second cooling jacket (28); First cooling jacket (27) is connected with cooling blower (30) through first cold-air duct (29); Second cooling jacket (28) is connected with cooling blower (30) through second cold-air duct (31), and the first cold wind valve (32) is set on first cold air duct (29), and the second cold wind valve (33) is set on second cold air duct (31).
3. the direct lime kilning of high-temperature flue gas of converter according to claim 1 is realized waste-heat recovery device, it is characterized in that: the height on the first calcining piece housing (6) and second calcining piece housing (12) the bottom side edge edge is lower than the height of vent-pipe (15) lower edge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201360782U CN202530109U (en) | 2012-03-31 | 2012-03-31 | Waste heat recovery device utilizing waste heat of one-off high temperature flue gas of converter to directly calcine lime |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201360782U CN202530109U (en) | 2012-03-31 | 2012-03-31 | Waste heat recovery device utilizing waste heat of one-off high temperature flue gas of converter to directly calcine lime |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202530109U true CN202530109U (en) | 2012-11-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201360782U Withdrawn - After Issue CN202530109U (en) | 2012-03-31 | 2012-03-31 | Waste heat recovery device utilizing waste heat of one-off high temperature flue gas of converter to directly calcine lime |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202530109U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102627414A (en) * | 2012-03-31 | 2012-08-08 | 济钢集团国际工程技术有限公司 | Device for realizing waste heat recovery by directly calcining lime through primary high-temperature flue gas of converter |
| CN104006668A (en) * | 2014-05-22 | 2014-08-27 | 江苏华德工业炉有限公司 | Recyclable smoke dust recycling and purifying device of industrial furnace |
| CN114702254A (en) * | 2022-03-09 | 2022-07-05 | 武汉科技大学 | Method for producing lime powder by calcining in evaporative cooling flue of metallurgical furnace |
-
2012
- 2012-03-31 CN CN2012201360782U patent/CN202530109U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102627414A (en) * | 2012-03-31 | 2012-08-08 | 济钢集团国际工程技术有限公司 | Device for realizing waste heat recovery by directly calcining lime through primary high-temperature flue gas of converter |
| CN104006668A (en) * | 2014-05-22 | 2014-08-27 | 江苏华德工业炉有限公司 | Recyclable smoke dust recycling and purifying device of industrial furnace |
| CN104006668B (en) * | 2014-05-22 | 2015-12-09 | 江苏华德工业炉有限公司 | Industrial furnace recoverable version fume recovery purifier |
| CN114702254A (en) * | 2022-03-09 | 2022-07-05 | 武汉科技大学 | Method for producing lime powder by calcining in evaporative cooling flue of metallurgical furnace |
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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: 20121114 Effective date of abandoning: 20130904 |
|
| RGAV | Abandon patent right to avoid regrant |