CN218097258U - Self-cleaning type trolley of sintering circular cooler - Google Patents

Self-cleaning type trolley of sintering circular cooler Download PDF

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Publication number
CN218097258U
CN218097258U CN202222231857.7U CN202222231857U CN218097258U CN 218097258 U CN218097258 U CN 218097258U CN 202222231857 U CN202222231857 U CN 202222231857U CN 218097258 U CN218097258 U CN 218097258U
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trolley
ring
plate
protection plate
cooling machine
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CN202222231857.7U
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叶学农
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Huatian Engineering and Technology Corp MCC
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Huatian Engineering and Technology Corp MCC
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00Technologies related to metal processing
    • Y02P10/25Process efficiency

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Abstract

The utility model discloses a cold quick-witted platform truck of self-cleaning formula sintered ring belongs to the sealed technical field of the cold quick-witted platform truck of ring. The utility model comprises a circular cooler, wherein the circular cooler comprises a circular cooler trolley, a circular cooler bellows and a circular cooler fan cover; the connecting part of the ring cooling machine trolley and the ring cooling machine bellows is provided with a movable sealing plate and a static sealing plate, the side edge of the ring cooling machine trolley is provided with a trolley heat insulation breast board, the outer side of the trolley heat insulation breast board is provided with an upper protection plate and a lower protection plate, the upper protection plate is connected with the lower protection plate, and a negative pressure channel is formed in a gap between the trolley heat insulation breast board and the upper protection plate as well as a gap between the trolley heat insulation breast board and the lower protection plate. The utility model discloses utilize to form corresponding negative pressure passageway between backplate and the thermal-insulated breast board of platform truck, the dusty gas who reveals from twice closing plate is sucked to the cold machine fan housing of cold platform truck upper portion ring of ring by the negative pressure, can guarantee normal sintering deposit cooling production, can effectively restrain dusty gas again excessive, improves environmental protection effect.

Description

Self-cleaning type trolley of sintering circular cooler
Technical Field
The utility model relates to a cold quick-witted platform truck of ring seals technical field, more specifically says, relates to a cold quick-witted platform truck of self-cleaning formula sintered ring.
Background
In the process of producing sintered ore by a ferrous metallurgy sintering machine, the hot sintered ore at 700-800 ℃ discharged by the sintering machine can be normally transported to a blast furnace smelting process only by cooling to below 150 ℃ through an air-blast circular cooler, waste heat air at high temperature (450 ℃) and second high temperature (300 ℃) generated in the process of cooling the sintered ore is subjected to waste heat recovery through a waste heat boiler, and the generated steam is used for sintering production and power generation. In order to improve the waste heat recovery efficiency and improve the quality of waste heat air, the low-temperature air (100 ℃) after waste heat recovery needs to be pressurized by a circulating fan and then circulated to an air box of the circular cooler for use. See the attached 'waste heat recovery schematic diagram of the circular cooler' for details.
Because the recycled waste heat air contains high dust (-2000 mg/Nm < 3 >), the dust content of the discharged low-temperature waste heat air is still as high as-300 mg/Nm < 3 > after heat exchange and sedimentation by the waste heat boiler. Because the blast circular cooler is operated by positive pressure, the pressure of the lower air box of the trolley is about +3500Pa, and the friction end of a movable sealing plate and a static sealing plate used for sealing between the moving circular cooler and the fixed air box generates a gap inevitably due to relative movement and abrasion, external air leakage is generated under the action of pressure difference, the air leakage rate is about 5% -10% in a normal state, and therefore dust carried along with wind generates serious pollution to the surrounding environment.
SUMMERY OF THE UTILITY MODEL
1. Technical problem to be solved by the utility model
The defect and not enough that exist to prior art, the utility model provides a cold quick-witted platform truck of self-cleaning formula sintered ring, the utility model discloses forming hot air interlayer between cold quick-witted platform truck thermal-insulated breast board of ring and last backplate, further reinforceed the thermal-insulated effect that keeps warm, it is extravagant to reduce the energy, it is penetrating from top to bottom between backplate and the thermal-insulated breast board of platform truck to go up between the backplate, and form corresponding negative pressure channel, from the closing plate, the dusty gas that the closing plate twice closing plate department of static closing plate was revealed is sucked to the cold quick-witted fan housing of ring of cold platform truck upper portion ring by the negative pressure, avoided the excessive pollution that brings of dust because of leaking out completely, can guarantee normal sintering deposit cooling production, can effectively restrain dusty gas excessive again, improve the environmental protection effect.
2. Technical scheme
In order to achieve the above purpose, the utility model provides a technical scheme does:
the utility model discloses a self-cleaning formula cold machine platform truck of sintered ring, including the ring cold machine, the ring cold machine include cold machine platform truck of ring, cold machine bellows of ring and cold machine fan housing of ring, the bottom of the cold machine platform truck of ring is provided with the cold machine bellows of ring, the top of the cold machine platform truck of ring is provided with the cold machine fan housing of ring;
a movable sealing plate and a static sealing plate are arranged at the joint of the circular cooler trolley and the circular cooler air box, a trolley heat-insulating barrier plate is arranged on the side edge of the circular cooler trolley, an upper protection plate and a lower protection plate are arranged on the outer side of the trolley heat-insulating barrier plate, the upper protection plate is connected with the lower protection plate, and the lower edge of the lower protection plate extends to one side of the surface of the static sealing plate;
gaps between the trolley heat insulation baffle plate and the upper guard plate and between the trolley heat insulation baffle plate and the lower guard plate form a negative pressure channel, the output end of the negative pressure channel extends to the inner side of the annular cooler trolley, and an upper sealing plate is arranged between the upper edge of the upper guard plate and the annular cooler trolley.
Furthermore, the output end of the annular cooler air cover is connected with a waste heat boiler, the output end of the waste heat boiler is provided with a circulating fan, and low-temperature air output by the waste heat boiler is pressurized by the circulating fan and then conveyed to the annular cooler air cover.
Furthermore, a gap between the trolley heat insulation sideboard and the upper guard plate and a gap between the trolley heat insulation sideboard and the lower guard plate form a hot air interlayer.
Furthermore, the gap between the lower edge of the lower guard plate and the plate surface of the static sealing plate is less than or equal to 5mm.
Furthermore, a cavity of the circular cooler trolley is filled with sintered ore.
3. Advantageous effects
Adopt the technical scheme provided by the utility model, compare with prior art, have following beneficial effect:
the utility model can keep the balance of the air quantity of the waste heat recovery air circulation system of the circular cooler without supplementing cold air; form the hot air intermediate layer between cold quick-witted platform truck thermal-insulated breast board of ring and last backplate, the thermal-insulated effect of heat preservation has further been reinforceed, it is extravagant to reduce the energy, it is penetrating from top to bottom between backplate and the cold-insulated breast board of platform truck, and form corresponding negative pressure passageway, from the sealing plate, the dirty gas that static sealing plate twice sealing plate department revealed is sucked to the cold quick-witted fan housing of ring cold machine platform truck upper portion ring by the negative pressure, the pollution of dust excessive bring because of what the air leakage arouses has been avoided completely, can guarantee normal sintering deposit cooling production, can effectively restrain dirty gas excessive again, environmental protection effect is improved.
Drawings
FIG. 1 is a structural diagram of a waste heat recovery system of the present invention;
fig. 2 is a top view of the negative pressure channel structure of the present invention;
FIG. 3 is a diagram showing the distribution effect of the sealing plate of the present invention;
fig. 4 is a structural view of the mounting of the upper sealing plate of the present invention.
In the figure: 1. a circular cooler; 2. a waste heat boiler; 3. a circulating fan; 4. a trolley of the circular cooler; 401. an upper support plate; 5, an air box of the circular cooler; 6. a fan cover of the annular cooler; 7. a trolley heat insulation breast board; 8. an upper guard plate; 801. a lower support plate; 9. a lower guard plate; 10. a movable sealing plate; 11. a static seal plate; 12. an upper sealing plate; 13. sintering the ore; 14. a negative pressure channel.
Detailed Description
The invention is further described with reference to the following figures and examples:
example 1
As can be seen from fig. 1 to 4, the self-cleaning sintered ring cooling machine trolley of the embodiment comprises a ring cooling machine 1, wherein the ring cooling machine 1 comprises a ring cooling machine trolley 4, a ring cooling machine bellows 5 and a ring cooling machine fan cover 6, the bottom of the ring cooling machine trolley 4 is provided with the ring cooling machine bellows 5, and the top of the ring cooling machine trolley 4 is provided with the ring cooling machine fan cover 6;
the output end of the annular cooler air cover 6 is connected with a waste heat boiler 2, the output end of the waste heat boiler 2 is provided with a circulating fan 3, and low-temperature air output by the waste heat boiler 2 is pressurized by the circulating fan 3 and then conveyed to an annular cooler air box 5.
A movable sealing plate 10 and a static sealing plate 11 are arranged at the joint of the annular cooler trolley 4 and the annular cooler air box 5, a trolley heat insulation barrier 7 is arranged on the side edge of the annular cooler trolley 4, an upper protection plate 8 and a lower protection plate 9 are arranged on the outer side of the trolley heat insulation barrier 7, the upper protection plate 8 is connected with the lower protection plate 9, the lower edge of the lower protection plate 9 extends to one side of the plate surface of the static sealing plate 11, the gap between the lower edge of the lower protection plate 9 and the plate surface of the static sealing plate 11 is less than or equal to 5mm, and the gap is as small as possible so as to avoid large air leakage;
the cavity of the circular cooler trolley 4 is filled with sintered ore 13, gaps between the trolley heat-insulation baffle 7 and the upper protective plate 8 and between the trolley heat-insulation baffle and the lower protective plate 9 form a hot air interlayer, and the hot air interlayer is positioned on the outer side of the sintered ore 13, so that the heat-insulation effect can be generated, the heat loss is reduced, and the subsequent waste heat recovery effect is improved.
A negative pressure channel 14 is formed by gaps among the trolley heat insulation baffle plate 7, the upper guard plate 8 and the lower guard plate 9, the output end of the negative pressure channel 14 extends to the inner side of the circular cooler trolley 4, and an upper sealing plate 12 is arranged between the upper edge of the upper guard plate 8 and the circular cooler trolley 4.
The top of the upper guard plate 8 is provided with a lower supporting plate 801, the side of the ring cooling machine trolley 4 is provided with an upper supporting plate 401, the upper end of the upper sealing plate 12 is fixed with the upper supporting plate 401 through bolts, and the lower end of the upper sealing plate 12 is dynamically attached to the surface of the lower supporting plate 801.
The lower support plate 801 and the upper support plate 401 are both in a zigzag shape, and the upper edge of the lower support plate 801 and the lower edge of the upper support plate 401 are on the same horizontal line.
Go up backup pad 401 and provide the support basis for the installation of upper seal plate 12, upper seal plate 12 seals the opening part between the last edge of upper protective plate 8 and the cold platform truck 4 of ring, forms physics broken line passageway between upper seal plate 12 and the negative pressure passageway 14, can not influence the passing through of negative pressure gas, avoids negative pressure gas excessive.
The utility model discloses can guarantee normal 13 cooling production in sintering deposit, can effectively restrain again that dusty gas is excessive, add in the thermal-insulated breast board 7 outside of platform truck and establish backplate 8 on the one deck, go up backplate 8 and thermal-insulated breast board 7 of platform truck and remain certain clearance, it is penetrating from top to bottom between 8 and the thermal-insulated breast board 7 of platform truck to make go up backplate, and form corresponding negative pressure channel 14, the dynamic seal board 10 between the cold quick-witted bellows 5 of the cold platform truck 4 of ring and fixed ring of motion, static seal board 11, backplate 9 is down established on the cold quick-witted platform truck 4 automobile body of ring in the outside, communicate each other between backplate 9 and the last backplate 8 down, gas can freely pass through.
In the specific working process:
when the circular cooler waste heat recovery circulating air system works normally, under the action of the circulating fan 3, pressure difference of 4000Pa exists between the inside of a circular cooler air box 5 positioned at the lower part of a circular cooler trolley 4 and the inside of a circular cooler air cover 6 positioned at the upper part of the circular cooler trolley 4, and air can penetrate through a hot sinter 13 material layer to form heat exchange so as to cool the sinter 13.
Because the pressure in the annular cooling fan housing 6 on the annular cooling machine trolley 4 is negative pressure (usually about-500 Pa), under the action of the negative pressure, a pumping force from bottom to top is formed in a gap between the lower protection plate 9 and the upper protection plate 8 which are communicated with the annular cooling fan housing 6, so that dust-containing gas leaked from the two sealing plates of the driven sealing plate 10 and the static sealing plate 11 is pumped into the annular cooling fan housing 6 on the annular cooling machine trolley 4 by the negative pressure, and pollution caused by dust overflow due to air leakage is completely avoided.
The utility model can keep the balance of the air quantity of the waste heat recovery air circulation system of the circular cooler without supplementing cold air; form the hot air intermediate layer between cold quick-witted platform truck thermal-insulated breast board 7 of ring and last backplate 8, further strengthened the thermal-insulated effect of heat preservation, reduce the energy waste, it is penetrating from top to bottom between backplate 8 and the cold-insulated breast board 7 of platform truck, and form corresponding negative pressure passageway 14, from the sealing plate 10, dust-laden gas that 11 two sealing plate departments of static sealing plate revealed is sucked to the cold quick-witted fan housing 6 of ring upper portion ring in the cold quick-witted platform truck 4 of ring by the negative pressure, the pollution of dust excessive brought because of leaking the wind and arousing has been avoided completely, can guarantee normal sintering deposit 13 cooling production, can effectively restrain dust-laden gas excessive again, improve the environmental protection effect.
The utility model discloses do not have special requirement to equipment and material, only need to encircle cold platform truck 4 reform transform can, and need not to reform transform the major structure of the cold quick-witted body of ring and platform truck, consequently all can directly adopt in the sintering project of new design and the corresponding old system transformation project the utility model discloses the technique.
The present invention and its embodiments have been described above schematically, and the description is not limited thereto, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if a person skilled in the art should understand that without departing from the spirit of the present invention, the person skilled in the art should not inventively design the similar structural modes and embodiments to the technical solution, and all shall fall within the protection scope of the present invention.

Claims (5)

1. The utility model provides a cold quick-witted platform truck of self-cleaning formula sintered ring, includes cold machine (1) of ring, its characterized in that: the ring cooling machine (1) comprises a ring cooling machine trolley (4), a ring cooling machine air box (5) and a ring cooling machine air cover (6), wherein the bottom of the ring cooling machine trolley (4) is provided with the ring cooling machine air box (5), and the top of the ring cooling machine trolley (4) is provided with the ring cooling machine air cover (6);
a movable sealing plate (10) and a static sealing plate (11) are arranged at the joint of the annular cooler trolley (4) and the annular cooler air box (5), a trolley heat-insulating barrier plate (7) is arranged on the side edge of the annular cooler trolley (4), an upper protection plate (8) and a lower protection plate (9) are arranged on the outer side of the trolley heat-insulating barrier plate (7), the upper protection plate (8) is connected with the lower protection plate (9), and the lower edge of the lower protection plate (9) extends to one side of the surface of the static sealing plate (11);
a negative pressure channel (14) is formed in a gap between the trolley heat insulation baffle plate (7) and the upper protection plate (8) and between the trolley heat insulation baffle plate and the lower protection plate (9), the output end of the negative pressure channel (14) extends to the inner side of the ring cooling machine trolley (4), and an upper sealing plate (12) is arranged between the upper edge of the upper protection plate (8) and the ring cooling machine trolley (4).
2. A self-cleaning sintered ring cooler trolley according to claim 1, characterised in that: the output end of the annular cooler air cover (6) is connected with a waste heat boiler (2), the output end of the waste heat boiler (2) is provided with a circulating fan (3), and low-temperature air output by the waste heat boiler (2) is pressurized by the circulating fan (3) and then conveyed to the annular cooler air box (5).
3. A self-cleaning sintered ring cooler pallet as claimed in claim 1 in which: a hot air interlayer is formed in a gap between the trolley heat insulation sideboard (7) and the upper protection plate (8) and the lower protection plate (9).
4. A self-cleaning sintered ring cooler trolley according to claim 1, characterised in that: the clearance between the lower edge of the lower protective plate (9) and the plate surface of the static sealing plate (11) is less than or equal to 5mm.
5. A self-cleaning sintered ring cooler pallet as claimed in claim 1 in which: and a cavity of the circular cooler trolley (4) is filled with sintered ore (13).
CN202222231857.7U 2022-08-24 2022-08-24 Self-cleaning type trolley of sintering circular cooler Active CN218097258U (en)

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Application Number Priority Date Filing Date Title
CN202222231857.7U CN218097258U (en) 2022-08-24 2022-08-24 Self-cleaning type trolley of sintering circular cooler

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Application Number Priority Date Filing Date Title
CN202222231857.7U CN218097258U (en) 2022-08-24 2022-08-24 Self-cleaning type trolley of sintering circular cooler

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115164603A (en) * 2022-08-24 2022-10-11 中冶华天工程技术有限公司 Self-cleaning type trolley of sintering circular cooler

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115164603A (en) * 2022-08-24 2022-10-11 中冶华天工程技术有限公司 Self-cleaning type trolley of sintering circular cooler
CN115164603B (en) * 2022-08-24 2023-08-18 中冶华天工程技术有限公司 Self-cleaning sintering circular cooler trolley

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