CN202648404U - Sealing device for circulating sintering flue gas - Google Patents
Sealing device for circulating sintering flue gas Download PDFInfo
- Publication number
- CN202648404U CN202648404U CN 201220185147 CN201220185147U CN202648404U CN 202648404 U CN202648404 U CN 202648404U CN 201220185147 CN201220185147 CN 201220185147 CN 201220185147 U CN201220185147 U CN 201220185147U CN 202648404 U CN202648404 U CN 202648404U
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- flue gas
- sealing
- brush bar
- sintering
- gas cover
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Abstract
The utility model discloses a sealing device for circulating sintering flue gas. The sealing device for circulating the sintering flue gas comprises a flue gas cover (5) which is mounted on a flue gas circulating portion of a sintering machine, a plurality of circulating flue gas inlet pipes (1) are respectively arranged on two sides of the flue gas cover, an emergent ventilation pipe (4) is connected to each circulating flue gas inlet pipe, a stop valve (2) is arranged on each circulation flue gas inlet pipe, and a stop valve (3) is arranged on each emergency ventilation pipe. A sealing brush bar (6) is mounted at the position of a clearance between the front end face of the flue gas cover and a material face of the sintering machine (10), and a sealing brush bar (6) is also mounted at the position of a clearance between the rear end face of the flue gas cover and the material face of the sintering machine (10). A sealing brush bar adjusting device (12) is fixedly arranged on each sealing brush bar base seat (14), and each sealing brush bar adjusting device is connected with the flue gas cover through a bolt. A sealing brush bar (9) and a labyrinth type mechanical seal structure are arranged at the position of a clearance between one lateral side of the flue gas cover and a sintering machine pallet (11), and a sealing brush bar and a labyrinth type mechanical seal structure are arranged at the position of a clearance between the other lateral side of the flue gas cover and the sintering machine pallet (11). An upper sealing plate (7) is fixed on the sintering machine pallet, a lower sealing plate (8) is fixed on the flue gas cover, a labyrinth type matched sealing structure is arranged between the upper sealing plate and the lower sealing plate, a sealing brush bar base seat (16) is arranged in a trapezoidal groove in inserting mode, and the trapezoidal groove is located on one side of the lower sealing plate close to the sintering machine pallet.
Description
Technical field
The utility model relates to metallurgical industry sinter fume recycling residual heat technology, relates in particular to the sealing device of cycle sintering flue gas.
Background technology
" sinter fume recycling residual heat technology " is that the flue gas of Main Gas Flue of Sintering Machine part bellows is extracted out, after dedusting, enter blender with the flue gas of drawing from sinter cooler and mix formation heat of mixing flue gas, then heat of mixing flue gas is delivered to sintering machine bed of material surface and carried out cycle sintering, thus the sintering technology of realization sintering process energy-saving and emission-reduction.Its process mechanism is to utilize the physical thermal of the hot flue gas of sintering machine to come the solid-fuelled combustion heat of Substitute For Partial, so the sintering circuit energy consumption will significantly reduce.Sinter fume passes through sinter bed again simultaneously, and (temperature of sintering combustion layer can reach 1200～1400 to the harmful substances such as nitrogen oxide wherein, dioxin through decomposing behind the high temperature
oC), thus the environmental protection index of sintering circuit discharging waste gas will greatly be optimized.After adopting in addition sinter fume recycling residual heat technology, material layer temperature distributes also more even, and the sintering deposit quality also can obtain improvement to a certain degree.
Sinter fume recycling residual heat technology is compared with conventional sintering technique has many advantages, but want to make existing sintering machine to use this technology, need increase equipment or existing equipment and technology are improved, guarantee that wherein circulating flue gas does not leak and reduces the method and apparatus that normal temperature air bleeds is the essential condition of carrying out the sinter fume recycling residual heat.SO in the circulating flue gas
2, NOx, CO and dioxin-like chemical concentration is higher, especially the concentration of CO reaches as high as 2000～3000ppm, the dioxin pollution thing has irreversible carcinogenic, teratogenesis, mutagenesis toxicity, CO can make people's faintness of poisoning, even dead.In a single day circulating flue gas leaks, and will cause very large harm to staff and environment.In addition, the circulating flue gas sintering has certain requirement to circulating flue gas temperature and oxygen content, and the minimizing normal temperature air bleeds the beneficial effect of sinter fume recycling residual heat technology is guaranteed.Therefore need to there be feasible device can guarantee that circulating flue gas can used the process gas of sintering uniformly, can prevents that again circulating flue gas from not leaking, ensure safety in production.
Mainly concentrate at present the sealing of sintering circular-cooler and flue gas cover thereof about the Sealing Technology of flue gas cover.Chinese patent CN201010197306.2 discloses a kind of encapsulating method of high-temperature flue gas of cooling sintered ore generation, take steel wire as seal, the slit that many steel wires are arranged between flue gas cover and the chassis is located, by the barrier shutoff high-temperature flue gas of steel wire formation.Chinese patent CN201010104351.9 discloses a kind of central cooler and flue gas cover annular liquid flume thereof, this patent disclosure a kind of flue gas cover liquid seal, be used between flue gas cover and the chassis medial and lateral breast board, comprise the interior shape liquid bath and the outer ring liquid bath that are arranged at respectively on the breast board of chassis medial and lateral, also comprise built-in inserted plate and outer plate.
Summary of the invention
The purpose of this utility model is to provide a kind of sealing device of cycle sintering flue gas, the sealing device can be guaranteed that sinter fume is circulated to and smoke spillage does not occur when cycle sintering is carried out on sintering machine bed of material surface and reduce normal temperature air and bleed, thereby reduce the sintering circuit energy consumption.
For realizing above-mentioned utility model purpose, the utility model has adopted following technical scheme:
A kind of sealing device of cycle sintering flue gas, being included in sintering machine uses circulating flue gas that flue gas cover covering sintering machine partly is installed, described flue gas cover both sides respectively arrange several circulating flue gas air inlet pipe, be connected to the urgent ventilation pipe in the circulating flue gas air inlet pipe, in circulating flue gas air inlet pipe and urgent ventilation pipe stop valve be installed;
The sealing of sealing brush bar respectively is equipped with at place, slit between described flue gas cover front end face and rear end face and the sintering machine charge level, and sealing brush bar is installed on the pedestal, is fixed with sealing brush bar adjusting device on the pedestal, and adjusting device links to each other with flue gas cover by bolt;
Respectively be equipped with sealing brush bar and labyrinth type mechanical seal and combine and seal at place, slit between described flue gas cover two sides and the sintering pallet, upper sealing plate is fixedly mounted on the sintering pallet, lower shrouding is fixedly mounted on the flue gas cover, be the labyrinth type fitted seal between upper sealing plate and the lower shrouding, sealing brush bar is installed on the pedestal, and pedestal assigns into lower shrouding near in the trapezoidal groove of sintering pallet one side.
The sealing brush bar that described flue gas cover front end face and rear end face are equipped with is three layers, and three-layer sealed brush bar is for arranging from front to back.
The sealing brush bar that be equipped with described flue gas cover two sides has two layers, and sealing brush bar is installed in respectively in two trapezoidal grooves of lower shrouding, and two trapezoidal grooves are for being arranged above and below.
Described sealing brush bar be anti-more than 300 ℃ high temperature and wear-resisting flax material make.
The both sides of described flue gas cover respectively arrange two pressure in the pressure gauge monitoring flue gas cover.
Wrap up insulation material on the described circulating flue gas air inlet pipe, load the insulation mineral wool in the described flue gas cover.
The utility model uses circulating flue gas partly to be equipped with on the architecture basics of flue gas cover covering sintering machine at existing sintering machine, at first by in circulating flue gas air inlet pipe and urgent ventilation pipe stop valve being installed, at flue gas cover both sides setting pressure meter, when flue gas cover internal pressure during greater than the flue gas cover external pressure, close the stop valve on the circulating flue gas air inlet pipe, open simultaneously the stop valve on the urgent ventilation pipe, stop the circulating flue gas sintering, revert to normal sintering; When flue gas cover internal pressure during less than the flue gas cover external pressure, close the stop valve on the urgent ventilation pipe, open simultaneously the stop valve on the circulating flue gas air inlet pipe, carry out the circulating flue gas sintering.The second, the mode of locating to adopt sealing brush bar and labyrinth type mechanical seal to combine in flue gas cover two sides and the slit between the sintering pallet seals, place, the slit employing sealing brush bar sealing between flue gas cover front/rear end and sintering machine charge level.The 3rd, in flue gas cover, load the insulation mineral wool, wrap up insulation material in the circulating flue gas air inlet pipe, reduce the circulating flue gas thermal loss, guarantee the flue gas recirculation sintering effect.
The utility model compared with prior art has following beneficial effect:
(1) can significantly reduce the normal temperature air of the flue gas cover of bleeding, guarantee the flue gas recirculation sintering effect.
(2) can prevent that circulating flue gas from leaking, ensure that the flue gas recirculation sintering carries out safely.
(3) sensible heat in the circulating flue gas and the latent heat of combustible are utilized effectively, reduce the sintering circuit energy consumption.
Description of drawings
Fig. 1 is the circulating flue gas cover schematic cross-section of the sealing device of the utility model cycle sintering flue gas;
Fig. 2 is circulating flue gas cover side schematic view of the present utility model;
Fig. 3 is circulating flue gas cover both ends of the surface sealing brush bar schematic diagram of the present utility model;
Fig. 4 is circulating flue gas cover side seal structural representation of the present utility model.
Among the figure: 1 circulating flue gas air inlet pipe, 2(circulating flue gas air inlet pipe) stop valve, 3(urgent ventilation pipe) stop valve, 4 urgent ventilation pipes, 5 flue gas cover, 6(flue gas cover end face) sealing brush bar, 7 upper sealing plates, 8 times shroudings, 9(flue gas cover side) sealing brush bar, 10 sintering deposits (sintering machine material), 11 sintering pallets, 12(flue gas cover end face) sealing brush bar adjusting device, 13 pressure gauges, 14(flue gas cover end face) sealing brush bar pedestal, 15 insulation mineral wools, 16(flue gas cover side) sealing brush bar pedestal.
The specific embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Referring to Fig. 1, Fig. 2, a kind of sealing device of cycle sintering flue gas, being included in sintering machine uses circulating flue gas that oval flue gas cover 5 covering sintering machines partly are installed, described flue gas cover 5 both sides respectively arrange 1-8 circulating flue gas air inlet pipe 1, be connected to urgent ventilation pipe 4 in circulating flue gas air inlet pipe 1, circulating flue gas air inlet pipe 1 is identical with the diameter of urgent ventilation pipe 4, in circulating flue gas air inlet pipe 1 and urgent ventilation pipe 4 stop valve 2 and 3 is installed.In addition, the pressure in the both sides of flue gas cover 5 respectively arrange two pressure gauges, 13 monitoring flue gas cover 5.When flue gas cover 5 internal pressures during greater than flue gas cover 5 external pressure, close the stop valve 2 on the circulating flue gas air inlet pipe 1, open simultaneously the stop valve 3 on the urgent ventilation pipe 4, stop the circulating flue gas sintering, revert to normal sintering, flue gas cover 5 internal pressures are closed the stop valve 3 on the urgent ventilation pipe 4 during less than flue gas cover 5 external pressure, open simultaneously the stop valve 2 on the circulating flue gas air inlet pipe 1, carry out the circulating flue gas sintering.
6 sealings of sealing brush bar respectively are equipped with at place, slit between described flue gas cover 5 front end faces and rear end face and the sintering machine charge level (sintering deposit 10), referring to Fig. 3, sealing brush bar 6 is installed on the pedestal 14, is welded with sealing brush bar adjusting device 12 on the pedestal 14, and adjusting device 12 links to each other with flue gas cover 5 by bolt; The sealing brush bar adjusting device 12 main upper-lower positions of regulating sealing brush bar 6.Described sealing brush bar 6 is three layers, three-layer sealed brush bar 6 is arranged from front to back, sealing brush bar 6 for anti-more than 300 ℃ high temperature and wear-resisting flax material make, the length of sealing brush bar 6 is controlled at 50-150mm, after 6 wearing and tearing of sealing brush bar surpass 2mm, can make sealing brush bar 6 can continue to use by adjusting sealing brush bar adjusting device 12, the adjustable range of sealing brush bar adjusting device 12 be 20-100mm.
Respectively be equipped with sealing brush bar 9 and labyrinth type mechanical seal structure and combine and seal at place, slit between described flue gas cover 5 two sides and the sintering pallet 11, referring to Fig. 4, upper sealing plate 7 usefulness bolts are fixedly mounted on the sintering pallet 11, lower shrouding 8 is fixedly mounted on the flue gas cover 5, be the labyrinth type fitted seal between upper sealing plate 7 and the lower shrouding 8, transverse slot width between upper sealing plate 7 and the lower shrouding 8 is controlled at 10-15mm, and longitudinal slot is controlled at 15-25mm.Sealing brush bar 9 is installed on the sealing brush bar pedestal 16, pedestal 16 assigns into lower shrouding 8 near in the trapezoidal groove of sintering pallet 11 1 sides, sealing brush bar 9 has two layers, and two layers of sealing brush bar 9 are installed in respectively in two trapezoidal grooves of lower shrouding 8, and two trapezoidal grooves are for being arranged above and below.Sealing brush bar 9 for anti-more than 300 ℃ high temperature and wear-resisting flax material make, the length of sealing brush bar 9 is controlled at 20-100mm.
For reducing the circulating flue gas thermal loss, guarantee the flue gas recirculation sintering effect, wrap up insulation material in circulating flue gas air inlet pipe 1, in flue gas cover, load insulation mineral wool 15.
It below only is preferred embodiment of the present utility model; be not be used to limiting protection domain of the present utility model; therefore, all any modifications of within spirit of the present utility model and principle, doing, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (6)
1. the sealing device of a cycle sintering flue gas, being included in sintering machine uses circulating flue gas that flue gas cover (5) covering sintering machine partly is installed, it is characterized in that: described flue gas cover (5) both sides respectively arrange several circulating flue gas air inlet pipe (1), be connected to urgent ventilation pipe (4) in circulating flue gas air inlet pipe (1), in circulating flue gas air inlet pipe (1) and urgent ventilation pipe (4) stop valve (2,3) be installed;
Sealing brush bar (6) sealing respectively is equipped with at place, slit between described flue gas cover (5) front end face and rear end face and sintering machine material (10) face, sealing brush bar (6) is installed on the pedestal (14), be fixed with sealing brush bar adjusting device (12) on the pedestal (14), adjusting device (12) links to each other with flue gas cover (5) by bolt;
Respectively be equipped with sealing brush bar (9) and labyrinth type mechanical seal and combine and seal at place, slit between described flue gas cover (5) two sides and the sintering pallet (11), upper sealing plate (7) is fixedly mounted on the sintering pallet (11), lower shrouding (8) is fixedly mounted on the flue gas cover (5), be the labyrinth type fitted seal between upper sealing plate (7) and the lower shrouding (8), sealing brush bar (9) is installed on the pedestal (16), and pedestal (16) assigns into lower shrouding (8) near in the trapezoidal groove of sintering pallet (11) one sides.
2. the sealing device of cycle sintering flue gas according to claim 1 is characterized in that: the sealing brush bar (6) that described flue gas cover (5) front end face and rear end face are equipped with is three layers, and three-layer sealed brush bar (6) is from front to back arrangement.
3. the sealing device of cycle sintering flue gas according to claim 1, it is characterized in that: the sealing brush bar (9) that be equipped with described flue gas cover (5) two sides has two layers, sealing brush bar (9) is installed in respectively in two trapezoidal grooves of lower shrouding (8), and two trapezoidal grooves are for being arranged above and below.
4. it is characterized in that according to claim 2 or the sealing device of 3 described cycle sintering flue gases: described sealing brush bar (6,9) for anti-more than 300 ℃ high temperature and wear-resisting flax material make.
5. the sealing device of cycle sintering flue gas according to claim 1 is characterized in that: the both sides of described flue gas cover (5) respectively arrange the pressure in two pressure gauges (13) monitoring flue gas cover (5).
6. the sealing device of cycle sintering flue gas according to claim 1 is characterized in that: the upper parcel of described circulating flue gas air inlet pipe (1) insulation material, filling insulation mineral wool (15) in the described flue gas cover (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220185147 CN202648404U (en) | 2012-04-27 | 2012-04-27 | Sealing device for circulating sintering flue gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220185147 CN202648404U (en) | 2012-04-27 | 2012-04-27 | Sealing device for circulating sintering flue gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202648404U true CN202648404U (en) | 2013-01-02 |
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ID=47417501
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220185147 Expired - Lifetime CN202648404U (en) | 2012-04-27 | 2012-04-27 | Sealing device for circulating sintering flue gas |
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| Country | Link |
|---|---|
| CN (1) | CN202648404U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105066700A (en) * | 2015-08-10 | 2015-11-18 | 中国科学院过程工程研究所 | Sealed hot blast cover device |
| CN107677130A (en) * | 2017-11-09 | 2018-02-09 | 马鞍山钢铁股份有限公司 | A kind of sintering process spray plus the stream guidance sealing cover of imflammable gas |
| CN109489425A (en) * | 2018-11-09 | 2019-03-19 | 武汉科技大学 | A kind of belt sintering vehicle side sealing device |
| CN110030840A (en) * | 2019-04-17 | 2019-07-19 | 中国科学院过程工程研究所 | A kind of smoke impervious cover and the sintering device flue gas circulatory system |
| CN110514011A (en) * | 2019-09-25 | 2019-11-29 | 北京中航泰达环保科技股份有限公司 | A kind of smoke impervious cover and the sintering flue gas circulatory system and control method |
| CN110768512A (en) * | 2019-10-28 | 2020-02-07 | 常州工学院 | Temperature online monitoring system of modular multilevel converter |
| CN111595152A (en) * | 2020-05-26 | 2020-08-28 | 德龙钢铁有限公司 | Movable circulating flue gas hood on sintering machine |
| CN113218196A (en) * | 2021-06-15 | 2021-08-06 | 中国科学院过程工程研究所 | Gas premixed sealing cover with double-side air inlet and circulation system for flue gas of sintering machine |
| US11780004B2 (en) | 2021-11-02 | 2023-10-10 | Institue of Process Engineering, Chinese Academy of Sciences | Trolley sealing device for flue gas circulation system of sintering machine |
-
2012
- 2012-04-27 CN CN 201220185147 patent/CN202648404U/en not_active Expired - Lifetime
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105066700A (en) * | 2015-08-10 | 2015-11-18 | 中国科学院过程工程研究所 | Sealed hot blast cover device |
| CN107677130B (en) * | 2017-11-09 | 2024-01-30 | 马鞍山钢铁股份有限公司 | Flow guide sealing cover for spraying combustible gas in sintering process |
| CN107677130A (en) * | 2017-11-09 | 2018-02-09 | 马鞍山钢铁股份有限公司 | A kind of sintering process spray plus the stream guidance sealing cover of imflammable gas |
| CN109489425A (en) * | 2018-11-09 | 2019-03-19 | 武汉科技大学 | A kind of belt sintering vehicle side sealing device |
| CN110030840A (en) * | 2019-04-17 | 2019-07-19 | 中国科学院过程工程研究所 | A kind of smoke impervious cover and the sintering device flue gas circulatory system |
| CN110514011A (en) * | 2019-09-25 | 2019-11-29 | 北京中航泰达环保科技股份有限公司 | A kind of smoke impervious cover and the sintering flue gas circulatory system and control method |
| CN110514011B (en) * | 2019-09-25 | 2024-04-12 | 北京中航泰达环保科技股份有限公司 | Flue gas sealing cover, sintering flue gas circulation system and control method |
| CN110768512A (en) * | 2019-10-28 | 2020-02-07 | 常州工学院 | Temperature online monitoring system of modular multilevel converter |
| CN111595152A (en) * | 2020-05-26 | 2020-08-28 | 德龙钢铁有限公司 | Movable circulating flue gas hood on sintering machine |
| CN111595152B (en) * | 2020-05-26 | 2021-11-16 | 德龙钢铁有限公司 | Movable circulating flue gas hood on sintering machine |
| CN113218196B (en) * | 2021-06-15 | 2022-02-22 | 中国科学院过程工程研究所 | Gas premixed sealing cover with double-side air inlet and circulation system for flue gas of sintering machine |
| CN113218196A (en) * | 2021-06-15 | 2021-08-06 | 中国科学院过程工程研究所 | Gas premixed sealing cover with double-side air inlet and circulation system for flue gas of sintering machine |
| US11780004B2 (en) | 2021-11-02 | 2023-10-10 | Institue of Process Engineering, Chinese Academy of Sciences | Trolley sealing device for flue gas circulation system of sintering machine |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130102 |
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| CX01 | Expiry of patent term |