CN114534421B - Multistage guiding purification device for blast furnace flue gas and implementation method - Google Patents
Multistage guiding purification device for blast furnace flue gas and implementation method Download PDFInfo
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- CN114534421B CN114534421B CN202210298452.7A CN202210298452A CN114534421B CN 114534421 B CN114534421 B CN 114534421B CN 202210298452 A CN202210298452 A CN 202210298452A CN 114534421 B CN114534421 B CN 114534421B
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 81
- 239000003546 flue gas Substances 0.000 title claims abstract description 81
- 238000000746 purification Methods 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title claims abstract description 14
- 239000012535 impurity Substances 0.000 claims abstract description 51
- 239000000779 smoke Substances 0.000 claims description 27
- 239000002245 particle Substances 0.000 claims description 26
- 230000000903 blocking effect Effects 0.000 claims description 13
- 238000000926 separation method Methods 0.000 claims description 9
- 230000009471 action Effects 0.000 claims description 5
- 238000004140 cleaning Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 230000007306 turnover Effects 0.000 abstract description 15
- 238000005507 spraying Methods 0.000 abstract description 7
- 239000010865 sewage Substances 0.000 abstract description 5
- 238000009434 installation Methods 0.000 abstract description 3
- 238000009423 ventilation Methods 0.000 description 28
- 238000010586 diagram Methods 0.000 description 7
- 239000007921 spray Substances 0.000 description 5
- 239000000428 dust Substances 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 241000270295 Serpentes Species 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Separating Particles In Gases By Inertia (AREA)
Abstract
The utility model discloses a multi-stage guiding purification device for blast furnace flue gas and an implementation method thereof, and relates to the technical field of flue purification. The device comprises a primary baffle plate, a secondary baffle plate, a turnover baffle assembly and an induced air assembly, wherein the turnover baffle assembly is arranged between the primary baffle plate and the secondary baffle plate, a support frame is arranged on one side, far away from the primary baffle plate, of the secondary baffle plate, and the support frame is movably connected with the induced air assembly. According to the multi-stage guiding purification device for the blast furnace flue gas and the implementation method, the negative pressure control of the blast furnace flue gas is realized through the induced air component, the flue gas is sucked into the blast furnace flue, triple purification is realized through the primary baffle plate, the turnover baffle component and the secondary baffle plate, the impurity removal efficiency is improved, the impurities in the flue gas are reduced, and the problems that the flue is overlong, the installation is difficult, the purification is directly carried out in a spraying mode, the generated sewage is more and the later sewage treatment capacity is large in the prior art are solved.
Description
Technical Field
The utility model relates to the technical field of flue purification, in particular to a multi-stage guiding purification device for blast furnace flue gas and an implementation method.
Background
The flue gas purifying device mainly comprises a cloth bag dust removing device and a spraying purifying device; the purification principle of the spray purification device is as follows: when the flue gas passes through the mist space, the dust particles fall down along with the liquid drops due to collision, interception and agglomeration between the dust particles and the liquid drops. A disadvantage of the prior art spray-type cleaning devices is that the residence time of the flue gas in the device is too short, resulting in insufficient cleaning of the flue gas.
Chinese patent CN215352653U discloses a flue gas purifying device, comprising a flue and a spray device; the flue is a snake-shaped pipeline and is integrally and vertically placed under the support of a plurality of brackets; the lower opening of the flue is an inlet, and the upper opening of the flue is an outlet; the spraying device comprises a spraying pipe and a plurality of atomizing spray heads arranged on the spraying pipe; the spraying pipe is arranged in the flue, and is bent into a snake shape corresponding to the shape of the flue; the plurality of atomizing spray heads are arranged on the spray pipe; compared with the prior art, the flue of the flue gas purifying device provided by the utility model is tortuous and longer, and can be used for more fully purifying the flue gas.
Although this application solves the problems in the background art to some extent, the following problems exist in this application: 1. the flue is too long and is not easy to install; 2. the sewage is purified directly by adopting a spraying mode, so that more sewage is produced, and the sewage treatment capacity in the later stage is large.
Disclosure of Invention
The utility model aims to provide a multi-stage guiding purification device for blast furnace flue gas and an implementation method thereof, wherein negative pressure control of the blast furnace flue gas is realized through an induced draft assembly, smoke is sucked into the blast furnace flue gas, and triple purification is realized through a first-stage baffle plate, a turnover baffle assembly and a second-stage baffle plate, so that impurity removal efficiency is improved, and impurities in the smoke are reduced; the secondary baffle plate is linked with the induced air assembly under the action of the supporting frame, meanwhile, the turnover baffle assembly is utilized to realize the linkage of the primary baffle plate and the secondary baffle plate, the primary baffle plate and the secondary baffle plate are always in an active state, the guiding direction of smoke is continuously changed, the blocking force of the primary baffle plate and the secondary baffle plate on the smoke is increased, more impurity particles in the smoke are blocked, and meanwhile, the first ventilation holes and the second ventilation holes are prevented from being blocked by impurities in the smoke; the first air holes and the second air holes are respectively formed in the first-stage baffle plate and the second-stage baffle plate, different directions of the smoke are realized by the aid of the first air holes and the second air holes, the flowing direction of the smoke can be utilized, impurities in the smoke can be further removed, and the purifying capacity is improved; the impurity is got rid of through tertiary interception impurity and two-stage direction to the flue gas in the blast furnace flue, impurity particle in the flue gas that can significantly reduce, and one-level baffle, second grade baffle and upset separation subassembly compact structure, occupation space is few, lays the basis for the subsequent treatment of flue gas to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the multi-stage guiding purification device for the blast furnace flue gas comprises a primary baffle plate, a secondary baffle plate, a turnover baffle assembly and an induced draft assembly, wherein the turnover baffle assembly is arranged between the primary baffle plate and the secondary baffle plate, a support frame is arranged on one side, away from the primary baffle plate, of the secondary baffle plate, and the support frame is movably connected with the induced draft assembly;
a first rack and a second rack are respectively arranged on one side, adjacent to the first baffle plate and the second baffle plate, of the first rack and the second rack are arranged in a staggered mode, a short rotating shaft is fixedly connected to the middle position of the upper side and the lower side of the first baffle plate and the middle position of the lower side of the second baffle plate, and the first baffle plate and the second baffle plate are respectively and movably connected with a blast furnace flue through the short rotating shaft;
the overturning blocking assembly comprises a central shaft, end gears and overturning blades, wherein two ends of the central shaft are movably connected with the inner wall of a blast furnace flue through bearings, the end gears are fixedly connected to the position, close to the end, of the central shaft, the overturning blades are fixedly connected to the position, between the end gears, of the central shaft, and the upper side and the lower side of the end gears are meshed with a first rack and a second rack respectively;
the support frame comprises a long rotating shaft, bearing blocks, rotating rods and connecting pull rods, wherein the rotating rods are fixedly connected to the two ends of the long rotating shaft, one end, far away from the long rotating shaft, of each rotating rod is hinged to the connecting pull rod, the connecting pull rods are movably connected with the secondary baffle plates, the bearing blocks are arranged at positions, close to the two ends, of the long rotating shaft, and a worm is fixedly connected to the middle position of the long rotating shaft;
the induced air subassembly includes fan main part, driving motor and extension bar, driving motor's output fixed connection fan main part, and fan main part's central point puts fixedly connected with extension bar, and extension bar's one end fixedly connected with worm wheel, worm wheel and worm meshing, driving motor passes through the inner wall connection of support and blast furnace flue.
Preferably, the first air holes are formed in the first-stage baffle plate at equal intervals, and the first air holes on the upper side and the lower side of the first-stage baffle plate are obliquely arranged.
Preferably, one end of the first air holes on the upper side and the lower side of the first-stage baffle plate, which is close to the second-stage baffle plate, is inclined towards the transverse midline direction of the first-stage baffle plate.
Preferably, the second baffle plates are provided with second ventilation holes at equal intervals.
Preferably, one ends of the second ventilation holes of two adjacent rows on the second-stage baffle plate incline towards each other.
Preferably, sealing strips are arranged on the periphery of the primary baffle plate and the periphery of the secondary baffle plate.
Preferably, a connecting bracket is arranged on the bearing seat and is connected with the blast furnace flue.
Preferably, the rotating rods at two ends of the long rotating shaft are asymmetrically arranged.
Preferably, the length of the end gear is greater than the width of the first rack and the second rack.
The utility model provides a method for implementing a multi-stage guiding purification device for blast furnace flue gas, which comprises the following steps:
s1: the purification device is arranged in a blast furnace flue, the primary baffle plate and the secondary baffle plate are respectively and movably connected with the blast furnace flue through a short rotating shaft, the driving motor works to drive the fan main body to rotate, negative pressure is generated in the blast furnace flue, and smoke is sucked to enter from one end of the blast furnace flue close to the primary baffle plate;
s2: the worm wheel drives the worm to rotate, so that the long rotating shaft is controlled to work, the second-stage baffle plate rotates around the short rotating shaft under the action of the rotating rod driving and connecting the pull rod, and meanwhile, the second rack drives the end gear to rotate, drives the turning blade to rotate, realizes the position movement of the first rack and pushes the first-stage baffle plate to rotate around the short rotating shaft;
s3: the flue gas entering from one end of the blast furnace flue close to the first-stage baffle plate is firstly intercepted by the first-stage baffle plate, most of impurity particles in the flue gas are removed, then the flue gas is guided by the first air holes, the scattered flue gas gathers, and the overturning blades are used for secondarily blocking the impurity particles in the flue gas;
s4: after secondary impurity removal, the flue gas is intercepted by a secondary blocking plate, impurity particles in the flue gas are blocked for the third time, and then guided by a second air hole, and few impurity particles in the flue gas collide with each other, so that particulate matters contained in the flue gas are knocked down;
s5: and the flue gas after removing the impurities is purified by other purifying devices in the blast furnace flue, and intercepted impurity particles are discharged from the lower part of the blast furnace flue.
Compared with the prior art, the utility model has the beneficial effects that:
1. the utility model provides a multi-stage guiding purification device for blast furnace flue gas and an implementation method thereof, which are provided with a first-stage baffle plate, a second-stage baffle plate, a turnover baffle assembly and an induced draft assembly, wherein negative pressure control of the blast furnace flue is realized through the induced draft assembly, smoke is sucked into the blast furnace flue, triple purification is realized through the first-stage baffle plate, the turnover baffle assembly and the second-stage baffle plate, impurity removal efficiency is improved, and impurities in the smoke are reduced;
2. according to the multi-stage guiding purification device for the blast furnace flue gas and the implementation method, the secondary baffle plates are linked with the induced air assembly under the action of the supporting frame, meanwhile, the linkage of the primary baffle plates and the secondary baffle plates is realized by utilizing the overturning baffle assembly, the primary baffle plates and the secondary baffle plates are always in an active state, the guiding direction of the flue gas is continuously changed, the blocking force of the primary baffle plates and the secondary baffle plates on the flue gas is increased, more impurity particles in the flue gas are blocked, and meanwhile, the first ventilation holes and the second ventilation holes are prevented from being blocked by impurities in the flue gas;
3. according to the multi-stage guiding purification device and implementation method for the blast furnace flue gas, the first ventilation holes and the second ventilation holes are respectively formed in the first-stage baffle plate and the second-stage baffle plate, different guiding of the flue gas is realized by the aid of the first ventilation holes and the second ventilation holes, impurities in the flue gas can be further removed by means of the flowing direction of the flue gas, and the purification capacity is improved;
4. according to the multi-stage guiding purification device and implementation method for the blast furnace flue gas, impurities in the blast furnace flue gas can be removed through three-stage interception and two-stage guiding, so that impurity particles in the flue gas can be greatly reduced, and the primary baffle plate, the secondary baffle plate and the turnover baffle assembly are compact in structure, occupy less space and lay a foundation for subsequent treatment of the flue gas.
Drawings
FIG. 1 is an overall block diagram of the present utility model;
FIG. 2 is a block diagram of the primary baffle installation of the present utility model;
FIG. 3 is a cross-sectional view of a primary baffle plate of the present utility model;
FIG. 4 is a diagram of the installation of a secondary baffle plate of the present utility model;
FIG. 5 is a block diagram of a secondary baffle of the present utility model;
FIG. 6 is a cross-sectional view of a secondary baffle plate of the present utility model;
FIG. 7 is a block diagram of the flip-flop barrier assembly of the present utility model;
FIG. 8 is a block diagram of a support frame of the present utility model;
fig. 9 is a structural diagram of an induced draft assembly of the present utility model.
In the figure: 1. a first-stage baffle plate; 11. a first rack; 12. a first ventilation hole; 13. a short rotating shaft; 14. a sealing strip; 2. a secondary baffle plate; 21. a second rack; 22. a second ventilation hole; 3. overturning the barrier component; 31. a central shaft; 32. an end gear; 33. turning over the blade; 4. an induced draft assembly; 41. a fan main body; 42. a driving motor; 43. an extension rod; 431. a worm wheel; 5. a support frame; 51. a long rotating shaft; 511. a worm; 52. a bearing seat; 521. a connecting bracket; 53. a rotating rod; 54. and a connecting pull rod.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1, a multi-stage guiding purification device for flue gas of a blast furnace comprises a first-stage baffle plate 1, a second-stage baffle plate 2, a turnover baffle assembly 3 and an induced air assembly 4, wherein the turnover baffle assembly 3 is arranged between the first-stage baffle plate 1 and the second-stage baffle plate 2, a support frame 5 is arranged on one side, far away from the first-stage baffle plate 1, of the second-stage baffle plate 2, and the support frame 5 is movably connected with the induced air assembly 4.
Referring to fig. 2-6, a first rack 11 and a second rack 21 are respectively arranged on adjacent sides of a first baffle plate 1 and a second baffle plate 2, the first rack 11 and the second rack 21 are arranged in a staggered mode, a short rotating shaft 13 is fixedly connected to the middle positions of the upper side and the lower side of the first baffle plate 1 and the second baffle plate 2, the first baffle plate 1 and the second baffle plate 2 are respectively and movably connected with a blast furnace flue through the short rotating shaft 13, the rotating function of the first baffle plate 1 and the second baffle plate 2 can be achieved through the short rotating shaft 13, first ventilation holes 12 are formed in the first baffle plate 1 at equal intervals, the first ventilation holes 12 on the upper side and the lower side of the first baffle plate 1 are obliquely arranged, one end, close to the second baffle plate 2, of the first ventilation holes 12 is obliquely arranged towards the transverse central line direction of the first baffle plate 1, the impurity in the flue gas is blocked through the first baffle plate 1, the flue gas moves forwards through the first ventilation holes 12, the dispersed ventilation holes 12 are gathered, guide overturning blades 33 are used for carrying out secondary blocking on the impurity particles in the flue gas, the second baffle plate 2 are formed in the second baffle plate 2, the second ventilation holes 22 are formed in the second baffle plate 2 and are obliquely arranged, the second ventilation holes 22 are obliquely arranged on the second baffle plate 2, and are always in contact with the adjacent ventilation holes 22, and are in contact with the first ventilation holes 22, and are always in contact with the second ventilation holes 22, and are arranged at equal distances, and are in contact with the adjacent ventilation holes, and are in the first ventilation holes, and are always and are in contact with one side.
Referring to fig. 7, the overturning and blocking assembly 3 includes a central shaft 31, end gears 32 and overturning blades 33, two ends of the central shaft 31 are movably connected with the inner wall of the blast furnace flue through bearings, the end gears 32 are fixedly connected to the position, close to the ends, of the central shaft 31, overturning blades 33 are fixedly connected to the position, close to the ends, of the central shaft 31, the upper side and the lower side of the end gears 32 are respectively meshed with the first rack 11 and the second rack 21, the end gears 32 are driven to rotate through the second rack 21, so that the position movement of the first rack 11 is realized, the end gears 32 rotate to drive the overturning blades 33 to rotate, impurities in gas are further blocked, the length of the end gears 32 is greater than the widths of the first rack 11 and the second rack 21, when the primary blocking plate 1 and the secondary blocking plate 2 are in rotary movement, the first rack 11 and the second rack 21 can generate certain angle offset, and the first rack 11 and the second rack 21 are always meshed with the end gears 32.
Referring to fig. 8, the support 5 includes a long rotating shaft 51, a bearing seat 52, a rotating rod 53 and a connecting pull rod 54, wherein the two ends of the long rotating shaft 51 are fixedly connected with the rotating rod 53, one end of the rotating rod 53 away from the long rotating shaft 51 is hinged with the connecting pull rod 54, the connecting pull rod 54 is movably connected with the secondary baffle plate 2, the bearing seat 52 is arranged at a position of the long rotating shaft 51 close to the two ends, a worm 511 is fixedly connected to the middle position of the long rotating shaft 51, the rotating rod 53 at the two ends of the long rotating shaft 51 is asymmetrically arranged, when the long rotating shaft 51 rotates, the positions of the rotating rod 53 are always inconsistent, the secondary baffle plate 2 is inconsistent with the position of the long rotating shaft 51, the secondary baffle plate 2 rotates around the short rotating shaft 13 to change the moving direction of smoke, a connecting bracket 521 is arranged on the bearing seat 52, the connecting bracket 521 is connected with a blast furnace flue, and the position of the long rotating shaft 51 is fixed through the connecting bracket 521, so that the long rotating shaft 51 rotates in the bearing seat 52.
Referring to fig. 9, the induced air component 4 includes a fan main body 41, a driving motor 42 and an extension rod 43, wherein an output end of the driving motor 42 is fixedly connected with the fan main body 41, a center position of the fan main body 41 is fixedly connected with the extension rod 43, one end of the extension rod 43 is fixedly connected with a worm wheel 431, the worm wheel 431 is meshed with a worm 511, the driving motor 42 is connected with an inner wall of a blast furnace flue through a bracket, the driving motor 42 works to drive the fan main body 41 to rotate, negative pressure is generated in the blast furnace flue to attract flue gas to enter, and meanwhile, the fan main body 41 drives the extension rod 43 to rotate, so that the worm wheel 431 drives the worm 511 to rotate, and the long rotating shaft 51 is controlled to work.
In order to better demonstrate the implementation flow of the multi-stage guiding purification device for the blast furnace flue gas, the embodiment now provides an implementation method of the multi-stage guiding purification device for the blast furnace flue gas, which comprises the following steps:
step one: the purification device is arranged in a blast furnace flue, the primary baffle plate 1 and the secondary baffle plate 2 are respectively and movably connected with the blast furnace flue through a short rotating shaft 13, a driving motor 42 works to drive a fan main body 41 to rotate, negative pressure is generated in the blast furnace flue, and smoke is sucked to enter from one end of the blast furnace flue close to the primary baffle plate 1;
step two: the worm wheel 431 drives the worm 511 to rotate, so that the long rotating shaft 51 is controlled to work, the rotating rod 53 drives and is connected with the pull rod 54, the second-stage baffle plate 2 rotates around the short rotating shaft 13 to move, meanwhile, the second rack 21 drives the end gear 32 to rotate, the turning vane 33 is driven to rotate, the position of the first rack 11 is moved, the first-stage baffle plate 1 is pushed to rotate around the short rotating shaft 13, the first rack 11 and the second rack 21 move reversely, the first-stage baffle plate 1 and the second-stage baffle plate 2 rotate reversely all the time, the blocking force of the first-stage baffle plate 1 and the second-stage baffle plate 2 on smoke is increased, more impurity particles in the smoke are blocked, and meanwhile, the first ventilation holes 12 and the second ventilation holes 22 are prevented from being blocked by impurities in the smoke;
step three: the flue gas entering from one end of the blast furnace flue close to the first-stage baffle plate 1 is firstly intercepted by the first-stage baffle plate 1, most of impurity particles in the flue gas are removed, then the flue gas is guided by the first air holes 12, the scattered flue gas gathers, and the overturning blades 33 are used for secondarily blocking the impurity particles in the flue gas;
step four: after secondary impurity removal, the flue gas is intercepted by a secondary baffle plate 2, impurity particles in the flue gas are blocked for the third time, and then guided by a second air hole 22, and few impurity particles in the flue gas collide with each other, so that the particles in the flue gas are knocked down;
step five: and the flue gas after removing the impurities is purified by other purifying devices in the blast furnace flue, and intercepted impurity particles are discharged from the lower part of the blast furnace flue.
To sum up: the blast furnace flue gas multistage guiding purification device and the implementation method are provided with a first-stage baffle plate 1, a second-stage baffle plate 2, a turnover baffle assembly 3 and an induced draft assembly 4, negative pressure control of the blast furnace flue is realized through the induced draft assembly 4, smoke is sucked into the blast furnace flue, triple purification is realized through the first-stage baffle plate 1, the turnover baffle assembly 3 and the second-stage baffle plate 2, impurity removal efficiency is improved, and impurities in the smoke are reduced; the secondary baffle plate 2 is linked with the induced air component 4 under the action of the supporting frame 5, meanwhile, the turnover baffle component 3 is utilized to realize the linkage of the primary baffle plate 1 and the secondary baffle plate 2, the primary baffle plate 1 and the secondary baffle plate 2 are always in an active state, the guiding direction of smoke is continuously changed, the blocking force of the primary baffle plate 1 and the secondary baffle plate 2 on the smoke is increased, more impurity particles in the smoke are blocked, and meanwhile, the first ventilation holes 12 and the second ventilation holes 22 are prevented from being blocked by impurities in the smoke; the first air holes 12 and the second air holes 22 are respectively arranged on the first-stage baffle plate 1 and the second-stage baffle plate 2, different directions of the smoke are realized by utilizing the first air holes 12 and the second air holes 22, the flowing direction of the smoke can be utilized, impurities in the smoke can be further removed, and the purifying capacity is improved; the impurity is got rid of through tertiary interception impurity and two-stage direction in the blast furnace flue gas, impurity particle in the flue gas that can significantly reduce, and first level baffle 1, second grade baffle 2 and upset separation subassembly 3 compact structure, occupation space is few, lay the foundation for the subsequent treatment of flue gas.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should be covered by the protection scope of the present utility model by making equivalents and modifications to the technical solution and the inventive concept thereof.
Claims (3)
1. The utility model provides a multistage direction purifier of blast furnace flue gas, includes one-level baffle (1), second grade baffle (2), upset separation subassembly (3) and induced air subassembly (4), its characterized in that: an overturning separation assembly (3) is arranged between the first-stage separation plate (1) and the second-stage separation plate (2), a support frame (5) is arranged on one side, away from the first-stage separation plate (1), of the second-stage separation plate (2), and the support frame (5) is movably connected with an air guiding assembly (4);
a first rack (11) and a second rack (21) are respectively arranged on one side, adjacent to the first-stage baffle plate (1) and the second-stage baffle plate (2), of the first rack (11) and the second rack (21) are arranged in a staggered mode, a short rotating shaft (13) is fixedly connected to the middle positions of the upper side and the lower side of the first-stage baffle plate (1) and the middle position of the lower side of the second-stage baffle plate (2), the first-stage baffle plate (1) and the second-stage baffle plate (2) are respectively and movably connected with a blast furnace flue through the short rotating shaft (13), and sealing strips (14) are respectively arranged on one circle of the first-stage baffle plate (1) and one circle of the second-stage baffle plate (2);
the overturning separation assembly (3) comprises a central shaft (31), end gears (32) and overturning blades (33), two ends of the central shaft (31) are movably connected with the inner wall of a blast furnace flue through bearings, the end gears (32) are fixedly connected to positions, close to the ends, of the central shaft (31), the overturning blades (33) are fixedly connected to positions, between the end gears (32), of the central shaft (31), and the upper side and the lower side of the end gears (32) are respectively meshed with the first rack (11) and the second rack (21);
the support frame (5) comprises a long rotating shaft (51), bearing blocks (52), rotating rods (53) and connecting pull rods (54), wherein the rotating rods (53) are fixedly connected to the two ends of the long rotating shaft (51), one end, far away from the long rotating shaft (51), of each rotating rod (53) is hinged to the connecting pull rod (54), each connecting pull rod (54) is movably connected with the two-stage baffle plate (2), the bearing blocks (52) are arranged at positions, close to the two ends, of the long rotating shaft (51), and a worm (511) is fixedly connected to the middle position of the long rotating shaft (51);
the induced air assembly (4) comprises a fan main body (41), a driving motor (42) and an extension rod (43), wherein the output end of the driving motor (42) is fixedly connected with the fan main body (41), the extension rod (43) is fixedly connected with the center position of the fan main body (41), one end of the extension rod (43) is fixedly connected with a worm wheel (431), the worm wheel (431) is meshed with the worm (511), and the driving motor (42) is connected with the inner wall of a blast furnace flue through a bracket;
the first air holes (12) are formed in the first-stage baffle plate (1) at equal intervals, the first air holes (12) on the upper side and the lower side of the first-stage baffle plate (1) are obliquely arranged, and one end, close to the second-stage baffle plate (2), of the first air holes (12) on the upper side and the lower side of the first-stage baffle plate (1) is inclined towards the transverse central line direction of the first-stage baffle plate (1);
second air holes (22) are formed in the second-stage baffle plate (2) at equal intervals, and one ends of the second air holes (22) in two adjacent rows on the second-stage baffle plate (2) incline towards each other;
a connecting bracket (521) is arranged on the bearing seat (52), and the connecting bracket (521) is connected with a blast furnace flue;
the rotating rods (53) at two ends of the long rotating shaft (51) are asymmetrically arranged.
2. A blast furnace flue gas multistage pilot purification apparatus according to claim 1, wherein: the length of the end gear (32) is larger than the width of the first rack (11) and the second rack (21).
3. A method of implementing a blast furnace flue gas multistage pilot cleaning plant according to any one of claims 1-2, comprising the steps of:
s1: the purification device is arranged in a blast furnace flue, the primary baffle plate (1) and the secondary baffle plate (2) are respectively and movably connected with the blast furnace flue through a short rotating shaft (13), a driving motor (42) works to drive a fan main body (41) to rotate, negative pressure is generated in the blast furnace flue, and smoke is sucked to enter from one end of the blast furnace flue close to the primary baffle plate (1);
s2: the worm wheel (431) drives the worm (511) to rotate, so that the long rotating shaft (51) is controlled to work, the second-stage baffle plate (2) rotates around the short rotating shaft (13) under the action of the rotating rod (53) and the connecting pull rod (54), meanwhile, the second rack (21) drives the end gear (32) to rotate, the turning blade (33) is driven to rotate, the position of the first rack (11) is moved, and the first-stage baffle plate (1) is pushed to rotate around the short rotating shaft (13);
s3: the flue gas entering from one end of the blast furnace flue close to the first-stage baffle plate (1) is firstly intercepted by the first-stage baffle plate (1) to remove most of impurity particles in the flue gas, then the flue gas is guided by the first air holes (12), the scattered flue gas gathers together, and the overturning blades (33) are used for secondarily blocking the impurity particles in the flue gas;
s4: after secondary impurity removal, the flue gas is intercepted by a secondary baffle plate (2), impurity particles in the flue gas are blocked for the third time, and then guided by a second air hole (22), and few impurity particles in the flue gas collide with each other, so that particulate matters contained in the flue gas are knocked down;
s5: and the flue gas after removing the impurities is purified by other purifying devices in the blast furnace flue, and intercepted impurity particles are discharged from the lower part of the blast furnace flue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210298452.7A CN114534421B (en) | 2022-03-24 | 2022-03-24 | Multistage guiding purification device for blast furnace flue gas and implementation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210298452.7A CN114534421B (en) | 2022-03-24 | 2022-03-24 | Multistage guiding purification device for blast furnace flue gas and implementation method |
Publications (2)
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