CN203007292U - Blast furnace tap hole smoke gathering device with high smoke gathering efficiency - Google Patents
Blast furnace tap hole smoke gathering device with high smoke gathering efficiency Download PDFInfo
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- CN203007292U CN203007292U CN 201220744819 CN201220744819U CN203007292U CN 203007292 U CN203007292 U CN 203007292U CN 201220744819 CN201220744819 CN 201220744819 CN 201220744819 U CN201220744819 U CN 201220744819U CN 203007292 U CN203007292 U CN 203007292U
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- blast furnace
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- board
- smoke gathering
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Abstract
The utility model relates to a blast furnace tap hole smoke gathering device with high smoke gathering efficiency, belonging to the field of dedusting equipment. The blast furnace tap hole smoke gathering device comprises a top dedusting hood, a dedusting pipeline, side movable baffles, a front movable baffle, a top baffle, side baffles and a movable baffle lifting device, wherein a semi-closed room is formed by the top baffle fixed below a front tuyere platform of a tap hole as well as the side baffles arranged at two sides of a main iron runner, a closed room is combined by the top dedusting hood fixedly connected above the main iron runner, two side movable baffles of the main iron runner, the front movable baffle at the front side thereof as well as the semi-closed room, and the side movable baffles and the front movable baffle are controlled to lift by the movable baffle lifting device. By adopting the blast furnace tap hole smoke gathering device, the defects that the existing side dedusting hood and top dedusting hood have low smoke gathering efficiency, or affect machinery operation due to large area occupation, or seriously affect the smoke gathering efficiency due to the interference of cross wind are overcome, the smoke gathering efficiency is improved, and the environment condition of a casting house is improved.
Description
Technical field
The utility model relates to a kind of dust trapping device, more particularly, relates to the high blast furnace taphole flue gas collecting device of a kind of dust arrestment rate.
Background technology
Blast furnace is when tapping a blast furnace, and flue gas is the radioactivity lifting centered by iron notch, smelts approximately 2 kg of iron average generation flue dust per ton, simultaneously with the generation of the toxic and harmfuls such as carbon, sulphur, oxynitride in a large number, and has very strong thermal radiation.The flue dust of blast furnace iron notch has the characteristics such as temperature is high, jet power is strong, splash volume is large, the smoke granularity scope is wide, being spurting under the effect of hot pressing and furnace pressure penetrates from iron notch, and the diffusion of rising rapidly, disperse is at whole casting house, cause serious environmental pollution, simultaneously the stokehold operation is caused to seriously influence serious harm stokehold staff's life security.
At present, the common dust trapping device that adopts of domestic blast furnace iron notch mainly contains dual mode:
(1) side sucking hood is arranged in the iron notch both sides.Side sucking hood is arranged in iron notch one or both sides, as China Patent No. ZL200820114559.7, March 11 2009 Granted publication day, the utility model name is called: a kind of blast furnace taphole flue gas collecting device, this application case is included in air draft fan housing and the upper exhaust hood of a side setting of iron notch horizontal direction, opposite side in the iron notch horizontal direction arranges the isolation baffle plate, lower exhaust hood and upper exhaust hood are up and down vertical direction setting, form the smoke-collecting area of a semi closed with the tuyere platform of the top of iron notch, capture flue dust by the negative pressure gravitational attraction at place, air suction inlet.Because air port cover can not affect normal operation before tuyere platform and iron mouth, so cover body is usually less, and due to it not on the route of flue dust atural beat lifting, when fume amount is larger, spray when serious, flue dust is loose outward, poor effect; Obtain higher dust arrestment rate and need pass through larger air suction inlet negative pressure, need more energy consumption, deviate from mutually with the theme of current energy-saving and emission-reduction.
(2) the iron notch top fixed or movable formula of layout top dust hood.The top dust hood is on iron notch flue dust atural beat lifting route, and theoretical capture effect is high.But cover body is also unsuitable excessive, in order to avoid affect near the mechanical work of iron mouth, during blast furnace casting, the hot flue gas of dust-laden enters dust hood after need to walking around tuyere platform bottom, form local eddy currents below tuyere platform, flue dust is drifted about to both sides along tuyere platform, and enter in the whole process of dust excluding hood at flue dust, be vulnerable to horizontal Wind effect.Fixed top dust hood need improve capture rate by enlarging the approach such as dust hood volume or raising suction port negative pressure, it is larger that expansion dust hood volume causes institute to take up space, near the operation of the impact machinery iron mouth, improving the suction port negative pressure needs to improve the dust-removal system blower air quantity, has increased the consumption of the energy; The movable roof dust hood mainly improves capture rate by reducing the dust excluding hood position, but along with the cover body position descends, its thermal load sharply increases, and affects its work-ing life, and its structure is relatively complicated.
When blast furnace taphole taps a blast furnace, existing a large amount of flue dust produces, and also often simultaneously serious slag iron splash phenomenon occurs, and stokehold environment and stokehold staff's safety and Health is brought a lot of harm, therefore the improvement of blast furnace iron notch is demanded urgently improving.
Summary of the invention
The technical problem that utility model will solve
The utility model has overcome existing side draught dust hood and top absorption dust hood collection efficiency is not high, or the large mechanical work that affects that takes up room, or be subjected to the upsweep leg serious interference to affect deficiencies such as capturing effect, provide a kind of dust arrestment rate high blast furnace taphole flue gas collecting device, improve the iron notch dust arrestment rate, improved the casting house environmental aspect.
Technical scheme
For achieving the above object, the technical scheme that the utility model provides is:
the high blast furnace taphole flue gas collecting device of a kind of dust arrestment rate of the present utility model, comprise top dust excluding hood, cleaning shaft, side shifting board, front shifting board, the plate of fending off, side board and shifting board lifting device, the described plate of fending off is fixed in the below of tuyere platform, and this plate of fending off is positioned at the top of iron notch, the above-mentioned plate two sides of fending off are provided with two side boards, these two side boards are positioned at the both sides of main iron hook, and the side board of above-mentioned fend off plate and both sides forms a semiclosed chamber, described top dust excluding hood is fixed on the front portion of tuyere platform, and be positioned at above main iron hook, the two sides of this top dust excluding hood are provided with two side shifting boards, two side shifting boards are positioned at the both sides of main iron hook, and dock respectively with two above-mentioned side boards, the front portion of described top dust excluding hood is provided with the front shifting board, described top dust excluding hood, the side shifting board, front shifting board and above-mentioned semiclosed chamber are combined into confined chamber, described shifting board lifting device is controlled side shifting board and front shifting board up-and-down movement, be provided with cleaning shaft on the dust excluding hood of described top.The utility model by side shifting board, front shifting board are set, fend off plate and side board, thereby form the zone of a confined chamber, make this dust trapping device can obtain higher dust arrestment rate.
Further, described shifting board lifting device is linear electric motors, electric hoist or windlass.
Further, be provided with the protection screen cloth in described cleaning shaft.The utility model can prevent effectively that owing to being provided with the protection screen cloth cleaning shaft from blocking.
Further, the inwall of described top dust excluding hood, side shifting board, front shifting board, fend off plate and side board all is coated with a refractory masses.The utility model has improved the ability of whole dust trapping device opposing high temperature by be coated with a refractory masses on inwall, has improved work-ing life.
Beneficial effect
The technical scheme that adopts the utility model to provide is compared with existing known technology, has following beneficial effect::
(1) the high blast furnace taphole flue gas collecting device of a kind of dust arrestment rate of the present utility model, the top of iron notch is provided with the plate of fending off, and the plate two sides of fending off are provided with two side boards, and the side board of fend off plate and both sides forms half enclosed chamber; And the top dust excluding hood is fixed on the front portion of tuyere platform, and be positioned at above main iron hook, its underpart is provided with two side shifting boards and front shifting board, and this top dust excluding hood, side shifting board, front shifting board and above-mentioned semiclosed chamber are combined into confined chamber; Under the negative pressure and the effect of thermal radiation heating and lifting of top dust excluding hood, the air that has carried a large amount of dust and obnoxious flavour enters cleaning shaft, outside freezing air replenishes into, contain concentrated being collected of flue dust air-flow, and confined chamber also can resist the interference of upsweep leg, and dust removing effects is improved, and the wild wind that captures in confined chamber is less, therefore the exhaust air rate less, thereby obtain higher dust arrestment rate;
(2) the high blast furnace taphole flue gas collecting device of a kind of dust arrestment rate of the present utility model, raising by dust arrestment rate, reduced Dust Capacity in the casting house air, reduced the harm of dust to the staff, due to the baffle plate that is provided with all directions, can also stop the slag iron of iron notch splash simultaneously, the slag iron of splash is dropped in the closed area, prevent that the staff from being burnt, improved greatly stokehold personnel's Working environment;
(3) the high blast furnace taphole flue gas collecting device of a kind of dust arrestment rate of the present utility model, owing to being provided with side shifting board and front shifting board, when machinery in the casthouse equipment in the iron notch forefoot area during operation, rise side shifting board and front shifting board by the shifting board lifting device, can effectively expand the front working space of iron notch, facilitate mechanical means in the work of iron port area;
(4) the high blast furnace taphole flue gas collecting device of a kind of dust arrestment rate of the present utility model, be provided with the protection screen cloth in cleaning shaft, can prevent that aspirated foreign body from entering dust-removal system, reduces the damage of dust-removal system, easy maintenance;
(5) the high blast furnace taphole flue gas collecting device of a kind of dust arrestment rate of the present utility model, the inner-wall spraying of its top dust excluding hood, side shifting board, front shifting board, fend off plate and side board has a refractory masses, improve the ability of opposing high temperature, extended work-ing life.
Description of drawings
Fig. 1 is spatial arrangement schematic top plan view of the present utility model;
Fig. 2 is side of the present utility model shifting board and the front shifting board structural representation when falling;
Fig. 3 is that side of the present utility model shifting board and front shifting board rise, and the structural representation of side board when removing.
Label declaration in schematic diagram:
1, blast furnace; 2, tuyere platform; 3, iron notch; 4, main iron hook; 5, top dust excluding hood; 6, cleaning shaft; 7, side shifting board; 8, front shifting board; 9, the plate of fending off; 10, side board; 11, shifting board lifting device.
Embodiment
For further understanding content of the present utility model, in conjunction with the accompanying drawings and embodiments the utility model is described in detail.
In conjunction with Fig. 1, Fig. 2 and Fig. 3, the high blast furnace taphole flue gas collecting device of a kind of dust arrestment rate of the present embodiment, formed by top dust excluding hood 5, cleaning shaft 6, side shifting board 7, front shifting board 8, the plate 9 of fending off, side board 10 and shifting board lifting device 11 etc., wherein: tuyere platform 2 belows are provided with the plate 9 of fending off, these plate 9 belows of fending off are iron notch 3 and main iron hook 4, molten iron in blast furnace 1 flows out by iron notch 3, and flows along main iron hook 4; Above-mentioned plate 9 two sides of fending off are provided with two removable side boards 10, and these two side boards 10 are positioned at the both sides of main iron hook 4, and the side board 10 of fend off plate 9 and both sides forms half enclosed chamber, and main iron hook 4 is enclosed in this semiclosed chamber interior.
The top dust excluding hood 5 of the present embodiment is fixed on the front portion of tuyere platform 2, and be positioned at main iron hook 4 tops, be provided with cleaning shaft 6 on top dust excluding hood 5, and be connected with the dust treatment system by cleaning shaft 6, be provided with the protection screen cloth in the present embodiment in cleaning shaft 6, and this protection screen cloth is positioned at the junction of cleaning shaft 6 and top dust excluding hood 5, flue dust need just can enter cleaning shaft 6 through after this protection sieve net filtration, can prevent that aspirated foreign body from entering dust-removal system, reduced the damage of dust-removal system, easy to maintenance; The bottom of this top dust excluding hood 5 is respectively arranged with two side shifting boards 7 and a front shifting board 8, two side shifting boards 7 be positioned at main iron hook 4 both sides and with above-mentioned side board 10 corresponding joining respectively, and front shifting board 8 is arranged on the front portion of top dust excluding hood 5; So, top dust excluding hood 5, side shifting board 7, front shifting board 8 and above-mentioned semiclosed chamber are combined into the zone (as shown in Figure 2) of a confined chamber, and this confined chamber is enclosed in its inside with main iron hook 4; In the zone of this confined chamber, molten iron flows out through iron notch 3, and flow along main iron hook 4, under negative pressure in top dust excluding hood 5 and the effect of thermal radiation heating and lifting, the air that has carried a large amount of dust and obnoxious flavour enters cleaning shaft 6, outside freezing air replenishes into, contains concentrated being collected of flue dust air-flow; And the confined chamber that the utility model builds also can resist the interference of upsweep leg, and dust removing effects is improved, and the wild wind of top dust excluding hood 5 interior captures is less, thus the exhaust air rate less, thus obtain higher dust arrestment rate; In addition, the zone of this confined chamber also can effectively stop the slag iron of iron notch 3 splashes, and it is dropped in the closed area, prevents that the staff from being burnt, and has improved greatly stokehold personnel's Working environment.
The shifting board lifting device 11 of the present embodiment is arranged on top dust excluding hood 5 tops, side shifting board 7, front shifting board 8 are connected with the hoisting appliance of shifting board lifting device 11 respectively, the hoisting appliance of shifting board lifting device 11 can drive side shifting board 7 and front shifting board 8 moves up and down, this shifting board lifting device 11 can be linear electric motors or electric hoist or windlass, adopts linear electric motors to realize the motion control of lifting in the present embodiment; When mechanical means in iron notch 3 forefoot area during operation, rise side shifting board 7 and front shifting board 8, or remove removable side board 10(as shown in Figure 2), can effectively expand the front working space of iron notch 3, facilitate mechanical means in the work in iron notch 3 zones.The inwall of the top dust excluding hood 5 of the present embodiment, side shifting board 7, front shifting board 8, fend off plate 9 and side board 10 all is coated with a refractory masses, can prevent cover body that Yin Gaowen causes or distortion or the damage of baffle plate, even melting loss, improve its work-ing life.
When normally tapping a blast furnace, shifting board lifting device 11 is fallen side shifting board 7 and front shifting board 8, form one with tuyere platform 2, the plate 9 of fending off, side board 10 and top dust excluding hood 5 and be similar to airtight space, flue dust enters the dust-removal system purifying treatment via cleaning shaft 6 under the suction pressure effect of self hot lifting effect and top dust excluding hood 5 interior gas blowers.When tapping a blast furnace end, shifting board lifting device 11 rises side shifting board 7 and front shifting boards 8, facilitates stokehold operating personnel or mechanical means to the removing of the remaining slag iron of main iron hook 4.When needs during in the operation of iron mouth closer locations, the side board 10 of removable iron notch 3 both sides makes around iron notch 3 openlyr, greatly facilitates the stokehold operation, and this regional regular job is safeguarded, checks that maintenance, equipment replacement provide larger space.
Below schematically the utility model and embodiment thereof are described, this description does not have restricted, and shown in accompanying drawing is also one of embodiment of the present utility model, and actual structure is not limited to this.So, if those of ordinary skill in the art is enlightened by it, create aim in the situation that do not break away from the utility model, without the creationary frame mode similar to this technical scheme and the embodiment of designing, all should belong to protection domain of the present utility model.
Claims (4)
1. blast furnace taphole flue gas collecting device that dust arrestment rate is high, it is characterized in that: comprise top dust excluding hood (5), cleaning shaft (6), side shifting board (7), front shifting board (8), the plate (9) of fending off, side board (10) and shifting board lifting device (11), the described plate of fending off (9) is fixed in the below of tuyere platform (2), and this plate of fending off (9) is positioned at the top of iron notch (3), the above-mentioned plate of fending off (9) two sides are provided with two side boards (10), these two side boards (10) are positioned at the both sides of main iron hook (4), the above-mentioned plate of fending off (9) and the side board (10) of both sides form a semiclosed chamber,
described top dust excluding hood (5) is fixed on the front portion of tuyere platform (2), and be positioned at above main iron hook (4), the two sides of this top dust excluding hood (5) are provided with two side shifting boards (7), two side shifting boards (7) are positioned at the both sides of main iron hook (4), and dock respectively with above-mentioned two side boards (10), the front portion of described top dust excluding hood (5) is provided with front shifting board (8), described top dust excluding hood (5), side shifting board (7), front shifting board (8) is combined into confined chamber with above-mentioned semiclosed chamber, described shifting board lifting device (11) is controlled side shifting board (7) and front shifting board (8) up-and-down movement, be provided with cleaning shaft (6) on described top dust excluding hood (5).
2. the high blast furnace taphole flue gas collecting device of a kind of dust arrestment rate according to claim 1, it is characterized in that: described shifting board lifting device (11) is linear electric motors, electric hoist or windlass.
3. the high blast furnace taphole flue gas collecting device of a kind of dust arrestment rate according to claim 2, it is characterized in that: described cleaning shaft is provided with the protection screen cloth in (6).
4. according to claim 2 or 3 high blast furnace taphole flue gas collecting devices of described a kind of dust arrestment rate, it is characterized in that: the inwall of described top dust excluding hood (5), side shifting board (7), front shifting board (8), the plate of fending off (9) and side board (10) all is coated with a refractory masses.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220744819 CN203007292U (en) | 2012-12-31 | 2012-12-31 | Blast furnace tap hole smoke gathering device with high smoke gathering efficiency |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220744819 CN203007292U (en) | 2012-12-31 | 2012-12-31 | Blast furnace tap hole smoke gathering device with high smoke gathering efficiency |
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| Publication Number | Publication Date |
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| CN203007292U true CN203007292U (en) | 2013-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220744819 Expired - Fee Related CN203007292U (en) | 2012-12-31 | 2012-12-31 | Blast furnace tap hole smoke gathering device with high smoke gathering efficiency |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104152619A (en) * | 2014-07-31 | 2014-11-19 | 云南华云天朗环保有限责任公司 | Method for folding and unfolding high-temperature dust-collecting baffle plate |
| CN105806088A (en) * | 2016-05-09 | 2016-07-27 | 尼欧迪克（青岛）除尘设备有限公司 | Smoke gathering device used for electric arc furnace and refining furnace and smoke gathering method |
| CN109161627A (en) * | 2018-11-23 | 2019-01-08 | 云南玉溪仙福钢铁（集团）有限公司 | For blast furnace casting region and the dust pelletizing system of blast-melted ditch |
| CN109252007A (en) * | 2018-11-19 | 2019-01-22 | 云南玉溪仙福钢铁（集团）有限公司 | A kind of blast furnace iron storage type major groove |
| CN109289348A (en) * | 2018-12-04 | 2019-02-01 | 无锡三达环保科技有限公司 | Dust pelletizing system for milling train workshop |
| CN110306003A (en) * | 2019-06-26 | 2019-10-08 | 陕西龙门钢铁有限责任公司 | Cast house totally enclosed type dust excluding hood before a kind of State of Blast Furnace |
| CN114381561A (en) * | 2022-01-24 | 2022-04-22 | 中冶建筑研究总院有限公司 | Heat and smoke control system for large and medium blast furnace cast house workshop |
| CN114410869A (en) * | 2022-01-24 | 2022-04-29 | 中冶建筑研究总院有限公司 | Heat-resistant movable blast furnace taphole dust removal device and method |
| CN115261537A (en) * | 2022-06-17 | 2022-11-01 | 上海齐鑫耐火材料有限公司 | Prefabricated blast furnace tapping channel device and using method thereof |
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2012
- 2012-12-31 CN CN 201220744819 patent/CN203007292U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104152619A (en) * | 2014-07-31 | 2014-11-19 | 云南华云天朗环保有限责任公司 | Method for folding and unfolding high-temperature dust-collecting baffle plate |
| CN104152619B (en) * | 2014-07-31 | 2016-01-20 | 云南华云天朗环保有限责任公司 | High temperature gathers dust the method for baffle plate folding and unfolding |
| CN105806088A (en) * | 2016-05-09 | 2016-07-27 | 尼欧迪克（青岛）除尘设备有限公司 | Smoke gathering device used for electric arc furnace and refining furnace and smoke gathering method |
| CN105806088B (en) * | 2016-05-09 | 2018-10-19 | 尼欧迪克（青岛）除尘设备有限公司 | A kind of dust trapping device and smoke catching method being used for electric arc furnaces, refining furnace |
| CN109252007A (en) * | 2018-11-19 | 2019-01-22 | 云南玉溪仙福钢铁（集团）有限公司 | A kind of blast furnace iron storage type major groove |
| CN109161627A (en) * | 2018-11-23 | 2019-01-08 | 云南玉溪仙福钢铁（集团）有限公司 | For blast furnace casting region and the dust pelletizing system of blast-melted ditch |
| CN109289348A (en) * | 2018-12-04 | 2019-02-01 | 无锡三达环保科技有限公司 | Dust pelletizing system for milling train workshop |
| CN110306003A (en) * | 2019-06-26 | 2019-10-08 | 陕西龙门钢铁有限责任公司 | Cast house totally enclosed type dust excluding hood before a kind of State of Blast Furnace |
| CN114381561A (en) * | 2022-01-24 | 2022-04-22 | 中冶建筑研究总院有限公司 | Heat and smoke control system for large and medium blast furnace cast house workshop |
| CN114410869A (en) * | 2022-01-24 | 2022-04-29 | 中冶建筑研究总院有限公司 | Heat-resistant movable blast furnace taphole dust removal device and method |
| CN115261537A (en) * | 2022-06-17 | 2022-11-01 | 上海齐鑫耐火材料有限公司 | Prefabricated blast furnace tapping channel device and using method thereof |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130619 Termination date: 20131231 |