CN111575426A - Energy-saving blast furnace blast filtering and dehumidifying device - Google Patents
Energy-saving blast furnace blast filtering and dehumidifying device Download PDFInfo
- Publication number
- CN111575426A CN111575426A CN202010435677.3A CN202010435677A CN111575426A CN 111575426 A CN111575426 A CN 111575426A CN 202010435677 A CN202010435677 A CN 202010435677A CN 111575426 A CN111575426 A CN 111575426A
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- dehumidifying
- heat exchange
- filtering
- shell
- blast furnace
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- 238000001914 filtration Methods 0.000 title claims abstract description 29
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 57
- 239000001301 oxygen Substances 0.000 claims abstract description 57
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 56
- 238000007791 dehumidification Methods 0.000 claims abstract description 30
- 238000007664 blowing Methods 0.000 claims abstract description 5
- 230000007246 mechanism Effects 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 4
- 230000009471 action Effects 0.000 claims description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 14
- 238000005265 energy consumption Methods 0.000 abstract description 12
- 229910052742 iron Inorganic materials 0.000 abstract description 7
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000006837 decompression Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012354 overpressurization Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
Classifications
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B9/00—Stoves for heating the blast in blast furnaces
- C21B9/16—Cooling or drying the hot-blast
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B9/00—Stoves for heating the blast in blast furnaces
- C21B9/10—Other details, e.g. blast mains
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Drying Of Gases (AREA)
Abstract
The invention relates to an energy-saving blast furnace blast filtering and dehumidifying device, which comprises a filtering part and a dehumidifying part which are horizontally arranged in sequence, wherein the filtering part and the dehumidifying part are connected into a whole; the filter part is sequentially provided with an air inlet section and a filter cylinder; the dehumidification part comprises one or more groups of heat exchange channels connected in series and connected with the filter cartridge in the filter part, the single group of heat exchange channels are respectively connected with a bypass channel in parallel, one or more groups of switching valves are installed in a single bypass channel in a matching way, and the switching of the bypass channel is realized through the switching of the switching valves; a demister is arranged behind the last group of heat exchange channels, an oxygen-enriched mixer is connected behind the demister, a diameter-variable part is arranged behind the oxygen-enriched mixer, and the rear part of the diameter-variable part is connected with an external blowing device through an air outlet section; the invention reduces the running resistance of the filter part and is suitable for reducing the running resistance of the dehumidification part in non-dehumidification seasons, thereby greatly reducing the energy consumption of the ton iron and achieving the purpose of energy saving; and effectively improves the mixing uniformity of air and oxygen and ensures the safety.
Description
Technical Field
The invention relates to the technical field of blast furnace blast filtering and dehumidifying devices, in particular to an energy-saving blast furnace blast filtering and dehumidifying device.
Background
In the steel industry, an air filter of a blast furnace air-blowing filtering and dehumidifying device usually adopts a filter cylinder which is vertically arranged, and the operation resistance of the filter cylinder is large, so that the air suction resistance of a rear-end blast furnace air blower is increased, the shaft power of the blast furnace air blower is further increased, and the operation energy consumption of the blast furnace air blower is increased; on the other hand, when the dehumidification device is in a non-dehumidification season, due to the existence of hollow load resistance in the heat exchanger, the air suction resistance of the rear-end blast furnace blower is increased, so that the shaft power of the blast furnace blower in the non-dehumidification season is increased, and the operation energy consumption of the blast furnace blower in the non-dehumidification season is increased.
In the prior art, an oxygen-rich mixer is generally connected to a blast furnace blower to increase the oxygen content in the blast air. The domestic iron-making blast furnace oxygen-enriched blast has two forms: one is that the low-pressure oxygen of the oxygen making station is conveyed to a pipeline oxygen-rich mixer arranged on an air pipe at the suction side of the blower through a pipeline for oxygen enrichment, namely 'oxygen enrichment before the machine'; the other method is that the low-pressure oxygen of the oxygen making station is pressurized to 3.0MPa by an oxygen compressor and is conveyed to an oxygen pressure regulating station, the pressure of the oxygen pressure regulating station is reduced to 1.6MPa and then is conveyed to a blast furnace, or the oxygen is conveyed to a pipeline oxygen enrichment mixer arranged on an exhaust side air pipe of a blast furnace blower to carry out oxygen enrichment after the pressure is regulated to 0.6MPa, namely 'oxygen enrichment after the machine'. The 'post-machine oxygen enrichment' is also an oxygen enrichment process adopted by most domestic iron-making blast furnaces. The low-pressure oxygen of the oxygen making station in the 'oxygen enrichment after machine' process needs to build manpower and material resources such as pressurization and decompression energy consumption equipment, occupied space, equipment maintenance and the like when being subjected to over pressurization and decompression, so that the energy consumption of the blast furnace iron making ton iron is increased, and the iron making cost is increased. The existing oxygen-enriched mixers for 'oxygen enrichment before machine' and 'oxygen enrichment after machine' are both arranged on an air pipe, and are limited by the pipe diameter of the air pipe, so that the mixers are small, the mixing uniformity of air and oxygen is seriously influenced, and the occurrence of explosion safety accidents in the operation process of a blower is very easily caused by the non-uniform mixing of the air and the oxygen.
Disclosure of Invention
The applicant provides an energy-saving blast furnace blast filtering and dehumidifying device with a reasonable structure aiming at the defects in the prior art, thereby reducing the running resistance of a filtering part, reducing the air suction resistance of a rear end blower, greatly reducing the ton iron energy consumption, being especially suitable for non-dehumidifying seasons, ensuring the air-oxygen mixing uniformity and effectively ensuring the safety.
The technical scheme adopted by the invention is as follows:
an energy-saving blast furnace blast filtering and dehumidifying device comprises a filtering part and a dehumidifying part which are sequentially and horizontally arranged, wherein the filtering part and the dehumidifying part are connected into a whole; an air inlet section is arranged at the end part of the filter, and a filter cartridge which is horizontally arranged is arranged behind the air inlet section;
the structure of the dehumidification part is as follows: the system comprises one or more groups of heat exchange channels connected in series with a filter cartridge in a filter part, wherein the single group of heat exchange channels are respectively connected in parallel with a bypass channel, one or more groups of switching valves are installed in a single bypass channel in a matching way, and the switching on and off of the bypass channels are realized through the switching on and off of the switching valves; a demister is arranged behind the last group of heat exchange channels, an oxygen-enriched mixer is connected behind the demister, a diameter-variable part is arranged behind the oxygen-enriched mixer, and the rear part of the diameter-variable part is connected with an external blowing device through an air outlet section.
As a further improvement of the above technical solution:
the filter part is provided with a horizontal axial filter shell, the dehumidifying part is provided with a dehumidifying shell, the dehumidifying shell is axially consistent with the filter shell, and the dehumidifying shell and the filter shell are connected into a whole through a connecting part of a cylindrical structure; the single-group heat exchange channel and the corresponding bypass channel are arranged in parallel in the cross-sectional direction of the dehumidification shell.
And a drainage section is arranged at the bottom of the dehumidifying shell below or behind the heat exchange channel, and the drainage section drains water to the outside of the dehumidifying shell under the action of a drainer.
The drainage section is arranged at the bottom of the dehumidifying shell behind the plurality of groups of heat exchange channels, and the inner bottom surface of the dehumidifying shell between the heat exchange channels and the drainage section is inclined backwards and opened.
A demister and an oxygen-enriched mixer are sequentially arranged in the dehumidifying shell behind the last group of heat exchange channels; the dehumidifying shell positioned behind the oxygen-enriched mixer extends backwards and shrinks towards the axial direction at the same time to form a diameter-variable part; an air outlet section extends behind the reducing part.
The structure of the switching valve is as follows: the device comprises an outer frame body fixedly matched with the inner wall surface of a bypass channel, a rotating shaft is rotatably arranged through opposite sides of the outer frame body, the end head of the rotating shaft extends to the outside of the outer frame body, a driving mechanism is arranged at the end head of the rotating shaft positioned outside the outer frame body, and a rotating plate is fixedly arranged on the rotating shaft positioned between the opposite sides of the outer frame body; the edge of the rotating plate is assembled with the inner wall surface of the outer frame body.
A sealing device is arranged between the inner wall surface of the outer frame body and the rotating plate; the outer wall surface of the outer frame of the single group of switching valves is matched with the inner wall surface of the corresponding bypass channel, or the outer wall surfaces of the outer frames of the multiple groups of switching valves are matched with the inner wall surface of the corresponding bypass channel together.
The driving mechanism is arranged on the outer wall surface of the dehumidification part and is a motor or a hand wheel; the rotating shaft is rotatably connected with the outer frame body through a bearing.
The heat exchangers are arranged in the single group of heat exchange channels and are in a sleeve-fin tube type or plate-fin type structure.
The invention has the following beneficial effects:
the invention has compact and reasonable structure and convenient operation, and effectively reduces the running resistance of the filter by horizontally arranging the filter cartridges in the filter part, thereby reducing the air suction resistance of the rear-end blast furnace blower and reducing the running energy consumption; in a non-dehumidification season, namely when filtered air does not need to be subjected to freezing dehumidification through a heat exchange channel, a bypass channel parallel to the heat exchange channel is opened through a switching valve, so that the filtered air directly enters a rear demister from the bypass channel, the influence of no-load resistance when the air flows through a heat exchanger in the heat exchange channel is avoided, the air suction resistance of a rear-end blast furnace blower is reduced, the operation energy consumption of the rear-end blast furnace blower in the non-dehumidification season is greatly reduced, the energy consumption of iron per ton is reduced, and the purpose of energy conservation is effectively achieved;
the invention also comprises the following advantages:
the air after passing through the demister enters the oxygen-enriched mixer, so that the air and the oxygen are mixed and then flow into the rear-end blower, the limitation of the size and the power of the oxygen-enriched mixer by an air pipe of the blower is avoided, the installation and the selection scope of the oxygen-enriched mixer are effectively increased, the improvement of the mixing uniformity of the air and the oxygen is assisted, and the production safety is ensured;
the single-group heat exchange channel and the corresponding bypass channel are arranged in parallel in the cross-sectional direction of the dehumidification shell, so that when the bypass channel is blocked by the corresponding switching valve, air in the dehumidification part flows through the heat exchange channel, and heat exchange is realized; in non-dehumidification seasons, the bypass channel is opened through the switching valve, so that most of air in the dehumidification part flows through the bypass channel without no-load resistance, and the energy-saving effect is achieved.
Drawings
FIG. 1 is a block diagram of the present invention.
Fig. 2 is a schematic structural diagram of the present invention.
Fig. 3 is a sectional view taken along a-a in fig. 2.
Fig. 4 is a schematic structural view (closed state) of the switching valve of the present invention.
Fig. 5 is a plan view (opened state) of fig. 4.
Wherein: 1. an air inlet section; 2. a filter housing; 3. a filter cartridge; 4. a connecting portion; 5. a heat exchanger; 6. a switching valve; 7. a dehumidifying shell; 8. a demister; 9. an oxygen-enriched mixer; 10. a diameter-variable part; 11. an air outlet section; 12. a drainage section; 13. a water drainer; 61. an outer frame body; 62. a drive mechanism; 63. a rotating shaft; 64. and (6) rotating the plate.
Detailed Description
The following describes embodiments of the present invention with reference to the drawings.
As shown in fig. 1 and fig. 2, the blast filtering and dehumidifying device of the energy-saving blast furnace of the present embodiment includes a filtering portion and a dehumidifying portion horizontally arranged in sequence, and the filtering portion and the dehumidifying portion are joined into a whole; an air inlet section 1 is arranged at the end part of the filter section, and a filter cartridge 3 which is horizontally arranged is arranged behind the air inlet section 1; the filter cartridges 3 in the filter part are horizontally arranged, so that the running resistance of the filter part is effectively reduced, the air suction resistance of a rear-end blast furnace blower is reduced, and the running energy consumption is reduced;
the structure of the dehumidification part is as follows: the device comprises one or more groups of heat exchange channels connected in series with a filter cartridge 3 in a filter part, wherein the single group of heat exchange channels are respectively connected in parallel with a bypass channel, one or more groups of switching valves 6 are installed in a single bypass channel in a matching way, and the switching of the bypass channels is realized through the switching of the switching valves 6; a demister 8 is arranged behind the last group of heat exchange channels, an oxygen-enriched mixer 9 is connected behind the demister 8, a diameter-variable part 10 is arranged behind the oxygen-enriched mixer 9, and the rear part of the diameter-variable part 10 is connected with an external air blowing device through an air outlet section 11.
The bypass channel parallel to the heat exchange channel is opened through the switching valve 6, so that the filtered air is directly fed into the rear demister 8 from the bypass channel, the no-load resistance influence of the air flowing through the heat exchanger 5 in the heat exchange channel is avoided, the air suction resistance of a rear-end blast furnace blower is reduced, and the operation energy consumption of the rear-end blast furnace blower in non-dehumidification seasons is greatly reduced; the air after passing through the demister 8 enters the oxygen-enriched mixer 9, so that the air and the oxygen are mixed and then flow into the rear-end blower, the limitation of the size and the power of the oxygen-enriched mixer 9 by an air pipe of the blower is avoided, the installation and the selection scope of the oxygen-enriched mixer 9 are effectively increased, the improvement of the mixing uniformity of the air and the oxygen is assisted, and the production safety is ensured.
The filter part is provided with a horizontal axial filter shell 2, the dehumidifying part is provided with a dehumidifying shell 7, the dehumidifying shell 7 is axially consistent with the filter shell 2, and the dehumidifying shell 7 and the filter shell 2 are connected into a whole through a connecting part 4 of a cylindrical structure; the single set of heat exchange channels and the corresponding bypass channels are arranged in parallel in the cross-sectional direction of the dehumidifying casing 7, as shown in fig. 3.
The single-group heat exchange channel and the corresponding bypass channel are arranged in parallel in the cross-section direction of the dehumidification shell 7, so that when the bypass channel is blocked by the corresponding switching valve 6, air in the dehumidification part flows through the heat exchange channel, and heat exchange is realized; and in the non-dehumidification season, the bypass channel is opened through the switching valve 6, so that most of air in the dehumidification part flows through the bypass channel without no-load resistance, and the energy-saving effect is achieved.
The bottom of the dehumidifying shell 7 positioned below or behind the heat exchange channel is provided with a drainage section 12, the drainage section 12 drains water to the outside of the dehumidifying shell 7 under the action of a drainer 13, and the drainer 13 and the drainage section 12 are used for timely discharging condensed water after air is cooled and dehumidified.
The drainage section 12 is arranged at the bottom of the dehumidifying shell 7 behind the plurality of groups of heat exchange channels, and the inner bottom surface of the dehumidifying shell 7 between the heat exchange channels and the drainage section 12 is inclined backwards and opened; the inclination of the inner bottom surface of the dehumidifying shell 7 is beneficial to the flowing of condensed water and the timely and effective discharge.
A demister 8 and an oxygen-enriched mixer 9 are sequentially arranged in the dehumidifying shell 7 behind the last group of heat exchange channels; the dehumidifying casing 7 located behind the oxygen-rich mixer 9 is contracted in the axial direction while extending rearward to form a diameter-variable portion 10; an air outlet section 11 extends behind the variable-diameter part 10; the existence of the diameter-variable part 10 coordinates the large caliber of the dehumidifying part and the small caliber of the blower to be connected, ensures the filtering and dehumidifying efficiency and simultaneously ensures the connection of the dehumidifying device and the rear-end blower.
The connecting portion 4 has a smaller size at its end connected to the dehumidifying case 7 than at its end connected to the filtering case 2.
As shown in fig. 4 and 5, the switching valve 6 has a structure in which: the device comprises an outer frame body 61 fixedly matched with the inner wall surface of the bypass channel, a rotating shaft 63 rotatably mounted through opposite sides of the outer frame body 61, the end of the rotating shaft 63 extends to the outside of the outer frame body 61, a driving mechanism 62 is mounted at the end of the rotating shaft 63 positioned on the outside of the outer frame body 61, and a rotating plate 64 is fixedly mounted on the rotating shaft 63 positioned between the opposite sides of the outer frame body 61; the edge of the rotating plate 64 is fitted with the inner wall surface of the outer frame body 61; the driving mechanism 62 drives the rotating shaft 63 to rotate, and the rotating plate 64 rotates along with the rotating shaft 63, so that the edge of the rotating plate 64 is closed or separated from the outer frame body 61, and the bypass channel is isolated or opened.
A sealing device is arranged between the inner wall surface of the outer frame body 61 and the rotating plate 64, and the sealing device ensures the separation effect of the bypass channel when the rotating plate 64 and the outer frame body 61 are closed; the outer wall surface of the outer frame 61 of the single set of switching valves 6 matches the inner wall surface of the corresponding bypass, or the outer wall surfaces of the outer frames 61 of the multiple sets of switching valves 6 collectively match the inner wall surface of the corresponding bypass. As shown in fig. 3, the outer frames 61 of the two sets of switching valves 6 are bonded to the corresponding inner wall surfaces of the bypass passages in common.
The driving mechanism 62 is installed on the outer wall surface of the dehumidification part, the driving mechanism 62 is a motor or a hand wheel, the motor or the hand wheel drives the rotating shaft 63 to rotate, and the rotating shaft 63 drives the rotating plate 64 to rotate, so that the switching valve 6 is opened and closed; the rotating shaft 63 is rotatably connected to the outer frame 61 through a bearing.
The heat exchangers 5 are arranged in the single group of heat exchange channels, and the heat exchangers 5 are in a sleeve-fin tube type or plate-fin type structure.
The working principle of the invention is as follows:
in the season of dehumidification, the edge of the transfer plate 64 of the switching valve 6 is attached to the corresponding outer frame 61, that is, the switching valve 6 is in a closed state, and the bypass passage is blocked, as shown in fig. 4; air enters a filter cylinder 3 through an air inlet section 1 to be filtered, then is cooled and dehumidified through a heat exchanger 5 in a heat exchange channel, then is fully mixed with air and oxygen in an oxygen-enriched mixer 9 through a demister 8, and finally the oxygen-enriched air flows to an external blower through a reducing part 10 and an air outlet section 11;
in non-dehumidification seasons, the driving mechanism 62 drives the rotating shaft 63 to rotate, and the rotating plate 64 rotates along with the rotating shaft 63, so that the surface of the rotating plate 64 in the switching valve 6 and the surface of the outer frame body 61 form an included angle or are perpendicular to each other, as shown in fig. 5, that is, the switching valve 6 is in an open state, and the bypass channel is open; the air filters through air inlet section 1 entering cartridge filter 3, and then most air gets into rear defroster 8 behind the bypass of opening in, has avoided the no-load resistance influence when the air flows through heat exchanger 5 among the heat transfer passageway promptly.
The invention has the advantages of ingenious and reasonable structure, greatly reduced energy consumption of the iron per ton, energy conservation in non-dehumidification seasons, and ensured production safety of the device.
The above description is intended to be illustrative and not restrictive, and the scope of the invention is defined by the appended claims, which may be modified in any manner within the scope of the invention.
Claims (9)
1. The utility model provides an energy-saving blast furnace blast air filters dehydrating unit which characterized in that: the device comprises a filtering part and a dehumidifying part which are sequentially and horizontally arranged, wherein the filtering part and the dehumidifying part are connected into a whole; an air inlet section (1) is arranged at the end part of the filtering part, and a horizontally arranged filter cylinder (3) is arranged behind the air inlet section (1);
the structure of the dehumidification part is as follows: the device comprises one or more groups of heat exchange channels connected in series with a filter cartridge (3) in a filter part, wherein the single group of heat exchange channels are respectively connected in parallel with a bypass channel, one or more groups of switching valves (6) are installed in a single bypass channel in a matching way, and the switching of the bypass channels is realized through the switching of the switching valves (6); a demister (8) is arranged behind the last group of heat exchange channels, an oxygen-enriched mixer (9) is connected behind the demister (8), a diameter-variable part (10) is arranged behind the oxygen-enriched mixer (9), and the rear part of the diameter-variable part (10) is connected with an external air blowing device through an air outlet section (11).
2. The blast furnace blower filtering and dehumidifying device of claim 1, wherein: the filter part is provided with a horizontal and axial filter shell (2), the dehumidifying part is provided with a dehumidifying shell (7), the dehumidifying shell (7) is axially consistent with the filter shell (2), and the dehumidifying shell (7) is connected with the filter shell (2) into a whole through a connecting part (4) of a cylindrical structure; the single group of heat exchange channels and the corresponding bypass channels are arranged in parallel in the cross section direction of the dehumidification shell (7).
3. The blast furnace blower filtering and dehumidifying device of claim 2, wherein: a drainage section (12) is arranged at the bottom of the dehumidifying shell (7) below or behind the heat exchange channel, and the drainage section (12) drains water to the outside of the dehumidifying shell (7) under the action of a drainer (13).
4. The blast furnace blower filtering and dehumidifying device of claim 3, wherein: the drainage section (12) is arranged at the bottom of the dehumidifying shell (7) behind the plurality of groups of heat exchange channels, and the inner bottom surface of the dehumidifying shell (7) between the heat exchange channels and the drainage section (12) is inclined backwards and opened.
5. The blast furnace blower filtering and dehumidifying device of claim 2, wherein: a demister (8) and an oxygen-enriched mixer (9) are sequentially arranged in the dehumidifying shell (7) behind the last group of heat exchange channels; a dehumidifying shell (7) positioned behind the oxygen-enriched mixer (9) extends backwards and shrinks towards the axial direction to form a diameter-variable part (10); an air outlet section (11) extends behind the variable-diameter part (10).
6. The blast furnace blower filtering and dehumidifying device of claim 1, wherein: the structure of the switching valve (6) is as follows: the device comprises an outer frame body (61) fixedly matched with the inner wall surface of the bypass channel, a rotating shaft (63) is rotatably installed through opposite sides of the outer frame body (61), the end of the rotating shaft (63) extends to the outside of the outer frame body (61), a driving mechanism (62) is installed at the end of the rotating shaft (63) positioned outside the outer frame body (61), and a rotating plate (64) is fixedly installed on the rotating shaft (63) positioned between the opposite sides of the outer frame body (61); the edge of the rotating plate (64) is assembled with the inner wall surface of the outer frame body (61).
7. The blast furnace blower filtering and dehumidifying device of claim 6, wherein: a sealing device is arranged between the inner wall surface of the outer frame body (61) and the rotating plate (64); the outer wall surface of the outer frame body (61) of the single group of switching valves (6) is matched with the inner wall surface of the corresponding bypass channel, or the outer wall surfaces of the outer frame bodies (61) of the multiple groups of switching valves (6) are matched with the inner wall surface of the corresponding bypass channel together.
8. The blast furnace blower filtering and dehumidifying device of claim 6, wherein: the driving mechanism (62) is arranged on the outer wall surface of the dehumidification part, and the driving mechanism (62) is a motor or a hand wheel; the rotating shaft (63) is rotatably connected with the outer frame body (61) through a bearing.
9. The blast furnace blower filtering and dehumidifying device of claim 1, wherein: the heat exchangers (5) are arranged in the single group of heat exchange channels, and the heat exchangers (5) are in a sleeve-fin tube type or plate-fin type structure form.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010435677.3A CN111575426B (en) | 2020-05-21 | 2020-05-21 | Energy-saving blast furnace blast air filtering dehumidifying device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010435677.3A CN111575426B (en) | 2020-05-21 | 2020-05-21 | Energy-saving blast furnace blast air filtering dehumidifying device |
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| CN111575426B CN111575426B (en) | 2024-09-10 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114875191A (en) * | 2022-05-25 | 2022-08-09 | 广州滨横低碳科技有限公司 | Blast furnace blast dehumidifier with self-cleaning function |
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| CN114875191A (en) * | 2022-05-25 | 2022-08-09 | 广州滨横低碳科技有限公司 | Blast furnace blast dehumidifier with self-cleaning function |
| CN114875191B (en) * | 2022-05-25 | 2023-07-14 | 广州滨横低碳科技有限公司 | Blast furnace blast dehumidifier with self-cleaning function |
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