CN114934145B - Blast furnace feeding inclined bridge - Google Patents
Blast furnace feeding inclined bridge Download PDFInfo
- Publication number
- CN114934145B CN114934145B CN202210580444.1A CN202210580444A CN114934145B CN 114934145 B CN114934145 B CN 114934145B CN 202210580444 A CN202210580444 A CN 202210580444A CN 114934145 B CN114934145 B CN 114934145B
- Authority
- CN
- China
- Prior art keywords
- dust
- dust collection
- inclined bridge
- dust removing
- pipeline
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 239000000428 dust Substances 0.000 claims abstract description 140
- 230000000712 assembly Effects 0.000 claims abstract description 14
- 238000000429 assembly Methods 0.000 claims abstract description 14
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 6
- 230000001960 triggered effect Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 7
- 238000010521 absorption reaction Methods 0.000 description 4
- 239000002994 raw material Substances 0.000 description 3
- 239000000956 alloy Substances 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- -1 sinter Substances 0.000 description 2
- 235000019738 Limestone Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/18—Bell-and-hopper arrangements
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/22—Dust arresters
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
- Blast Furnaces (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The invention discloses a blast furnace feeding inclined bridge, which comprises an inclined bridge, a skip car track and a dust removing pipeline, wherein the inclined bridge comprises a main body and a dust removing pipeline; a dust collection mechanism and a dust collection mechanism are arranged in the dust collection pipeline; the dust collection mechanism comprises a plurality of dust collection units which are axially distributed in the dust collection pipeline, and each dust collection unit comprises a plurality of air suction cylinder assemblies which are circumferentially distributed on the bracket; the dust collection device is provided with the dust collection channel to collect dust generated when the skip passes through the inclined bridge, so that the pollution to the environment is reduced, and the connecting rod assembly and the driving assembly are triggered one by one through the movement of the skip, so that the dust collection power is provided by one bag dust collector under the condition of sufficient dust collection effect, and compared with the case of adopting a plurality of bag dust collectors or a plurality of induced fans, the whole quality and the power consumption of equipment are greatly reduced, and the dust collection device is more economical and environment-friendly.
Description
Technical Field
The invention relates to the field of blast furnace charging equipment, in particular to a blast furnace charging inclined bridge.
Background
The blast furnace feeding device generally conveys raw materials such as coke, sinter, pellets, lump ore, limestone and the like to a blast furnace in a conveying mode of a skip car; in the raw material conveying process, a skip of a blast furnace feeding device runs on an open inclined bridge to cause dust pollution in the raw material conveying process of the blast furnace, and the problem is solved in the prior art by adopting a skip with a cover.
Disclosure of Invention
The invention provides a blast furnace feeding inclined bridge, which at least can solve one problem pointed out in the background art.
The blast furnace feeding inclined bridge comprises an inclined bridge, a skip car track arranged on the inclined bridge, and a dust removing pipeline sleeved on the inclined bridge;
a dust collection mechanism and a dust collection mechanism are arranged in the dust collection pipeline;
the dust removing mechanism is communicated with the dust collecting mechanism, and dust generated during feeding of the skip can be sucked into the dust removing mechanism through the dust collecting mechanism;
the dust collection mechanism comprises a plurality of dust collection units which are axially distributed in the dust collection pipeline, and the dust collection units are connected with the inner wall of the dust collection pipeline through brackets; the dust collection unit comprises a plurality of air suction cylinder assemblies which are circumferentially distributed on the bracket;
the air suction cylinder assembly comprises an upper air cylinder, a lower air cylinder and a rotary cylinder communicated with the upper air cylinder and the lower air cylinder, and the upper air cylinder and the lower air cylinder are respectively connected with the outer side and the inner side of the bracket; the bottom of the rotary drum is provided with a plurality of first through holes, and the top of the lower air duct is provided with a plurality of second through holes;
be provided with on the inclined bridge with a plurality of the link assembly of dust absorption unit one-to-one, be provided with in the support with the drive assembly that link assembly is connected, when the skip removes to one of them link assembly, corresponding drive assembly can drive the rotary drum and rotate, lets through-hole one with through-hole two is by dislocation state switch to the intercommunication state to make dust removal mechanism only absorb the dust through the dust absorption unit that is located the skip side.
Preferably, the dust removing mechanism comprises a dust removing box and a cloth bag dust remover arranged in the dust removing box, a cavity is formed in the pipe wall of the dust removing pipe, the dust removing box is communicated with the cavity through an air pipe, and the dust collecting unit is communicated with the cavity through an air feeding pipe.
Preferably, the rotary drum is sleeved with a torsion spring, one end of the torsion spring is connected to the rotary drum, the other end of the torsion spring is connected to the lower air duct, and under the action of the torsion spring, the first through hole and the second through hole are in a dislocation state.
Preferably, the driving assembly comprises a rotating ring which is rotatably arranged in the bracket, teeth are arranged on the inner side of the rotating ring and towards the side of the rotating cylinder, a first gear which is meshed with the teeth on the side of the rotating ring is arranged on the rotating cylinder, and the connecting rod assembly is meshed with the teeth on the inner side of the rotating ring.
Preferably, the connecting rod assembly comprises a gear II rotatably arranged on the inclined bridge, a rack plate in meshed connection with the gear II and a supporting plate arranged on the inner side of the skip car track;
the supporting plate is connected with a connecting plate positioned below the inclined bridge through a plurality of first connecting rods, and the connecting plate is connected with the rack plate through a second connecting rod;
and the second gear is in meshed connection with the driving assembly.
Preferably, the connecting plate is connected with the lower side of the inclined bridge through a plurality of compression springs.
Preferably, a horn-shaped air port is arranged at the end part of the lower air cylinder.
Preferably, the two ends of the supporting plate are provided with quarter round connecting blocks.
Preferably, the upper half part of the dust removing pipeline is made of aluminum alloy materials, the lower half part of the dust removing pipeline is made of steel materials, and a plurality of supporting frames are arranged on the lower side of the dust removing pipeline.
Compared with the prior art, the invention has the beneficial effects that: the dust collection device is provided with the dust collection channel to collect dust generated when the skip passes through the inclined bridge, so that the pollution to the environment is reduced, and the connecting rod assembly and the driving assembly are triggered one by one through the movement of the skip, so that the dust collection power is provided by one bag dust collector under the condition of sufficient dust collection effect, and compared with the case of adopting a plurality of bag dust collectors or a plurality of induced fans, the whole quality and the power consumption of equipment are greatly reduced, and the dust collection device is more economical and environment-friendly.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of the end of the dust removing pipe of the present invention;
FIG. 3 is a schematic view of a partial structure in a dust removing duct according to the present invention;
FIG. 4 is a cross-sectional view of the drive assembly and the connecting rod assembly of the present invention;
FIG. 5 is an enlarged view of a portion of FIG. 4A in accordance with the present invention;
FIG. 6 is an enlarged view of a portion of FIG. 4B in accordance with the present invention;
fig. 7 is a schematic structural view of the connecting rod assembly of the present invention.
Reference numerals illustrate:
the dust removing device comprises a 1-inclined bridge, a 2-skip track, a 3-dust removing pipeline, a 4-support, a 5-upper air cylinder, a 6-lower air cylinder, a 61-through hole II, a 7-rotary cylinder, a 71-through hole I, an 8-skip, a 9-cavity, a 10-support frame, a 11-dust removing box, a 12-air cylinder, a 13-, a 21-swivel, a 22-gear I, a 31-gear II, a 32-rack plate, a 33-support plate, a 34-connecting rod I, a 35-connecting plate, a 36-connecting rod II and a 37-connecting block.
Detailed Description
One embodiment of the present invention will be described in detail below with reference to the attached drawings, but it should be understood that the scope of the present invention is not limited by the embodiment.
Example 1
As shown in fig. 1 to 7, the blast furnace charging inclined bridge provided by the embodiment of the invention comprises an inclined bridge 1 and a skip rail 2 arranged on the inclined bridge, wherein a skip 8 moves on the skip rail 2, a dust removing pipeline 3 is sleeved outside the inclined bridge 1 for facilitating dust generated by the skip 8 in operation, the dust removing pipeline 3 is in contact with the ground through a supporting frame 10, and the inclined bridge 1 is fixed in the dust removing pipeline 3; in order to reduce the overall quality of the equipment, the upper half part of the dust removing pipeline 3 is made of aluminum alloy material, and the lower half part is made of steel material;
in order to achieve a better dust removing effect, a plurality of dust collecting units are arranged in the dust removing pipeline 3 along the axial direction, the dust collecting units form a dust collecting mechanism, and the distance and the number between adjacent dust collecting units can be selected according to actual conditions; the dust collection unit is connected with the inner wall of the dust collection pipeline 3 through a bracket 4; the dust collection unit comprises a plurality of air suction cylinder assemblies which are uniformly arranged on the bracket 4 along the circumferential direction;
as shown in fig. 2, the air suction cylinder assembly comprises an upper air cylinder 5, a lower air cylinder 6 and a rotary cylinder 7 communicated with the upper air cylinder 5 and the lower air cylinder 6, wherein the rotary cylinder 7 is rotatably arranged on the bracket 4, and the upper air cylinder 5 and the lower air cylinder 6 are respectively connected with the outer side and the inner side of the bracket 4;
as shown in fig. 1, the dust removing device further comprises a dust removing mechanism, the dust removing mechanism comprises a dust removing box 11 and a cloth bag dust remover arranged in the dust removing box 11, a cavity 9 is formed in the pipe wall of the dust removing pipe 3, the dust removing box 11 is communicated with the cavity 9 through an air pipe 12, and a dust collecting unit is communicated with the cavity 9 through an upper air cylinder 5.
Example two
As shown in fig. 3 to 7, on the basis of the first embodiment, the present invention proposes another embodiment, which includes a plurality of link assemblies corresponding to a plurality of dust collection units one by one and a driving assembly disposed in the bracket 4;
the length of the general inclined bridge 1 is tens of meters long, a large blast furnace even has an inclined bridge 1 with the length of hundreds of meters, if a plurality of dust collection units are driven by a draught fan of a bag-type dust collector, the power cannot reach the dust absorption capacity, namely the dust collection effect is extremely poor, if each draught fan is independently configured for each dust collection unit, the overall power is too high, the power consumption is huge, and in the moving process of a skip car, all the dust collection units are not required to work simultaneously, so the energy utilization rate is low; further, the invention can be realized under the action of the connecting rod assembly and the driving assembly: when the skip 8 moves to one of the connecting rod assemblies, the corresponding driving assembly can drive the rotary drums 7 on the corresponding support 4 to rotate, so that the first through holes 71 on the rotary drums 7 and the second through holes 61 on the lower air duct 6 are switched from a staggered state to a communicated state, and the dust removing mechanism only absorbs dust through dust collecting units positioned beside the skip 8, so that on the basis of meeting the dust removing effect, the configuration quantity of induced draft fans is reduced, the power consumption is reduced, and the dust removing cost is reduced;
the connecting rod assembly comprises a second gear 31 rotatably arranged on the inclined bridge 1, a rack plate 32 in meshed connection with the second gear 31 and a supporting plate 33 arranged on the inner side of the skip car track 2;
the supporting plate 33 is connected with a connecting plate 35 positioned below the inclined bridge 1 through a plurality of first connecting rods 34, and the connecting plate 35 is connected with the rack plate 32 through a second connecting rod 36; the connection plate 35 is connected to the underside of the inclined bridge 1 by a plurality of compression springs.
The driving assembly comprises a rotating ring 21 rotatably arranged in the bracket 4, teeth are arranged on the inner side of the rotating ring 21 and the side facing the rotating drum 7, a first gear 22 in meshed connection with the teeth on the side of the rotating ring 21 is arranged on the rotating drum 7, and a second gear 31 in meshed connection with the teeth on the inner side of the rotating ring 21;
the rotary drum 7 is sleeved with a torsion spring, one end of the torsion spring is connected to the rotary drum 7, the other end of the torsion spring is connected to the lower air duct 6, and under the action of the torsion spring, the first through hole 71 and the second through hole 61 are in a dislocation state;
in order to facilitate dust absorption, a horn-shaped air port is arranged at the end part of the lower air cylinder 6;
to reduce the resistance of the support plate 33 to the skip 8, as shown in fig. 7, a quarter-circular connecting block 37 is provided at both ends of the support plate 33;
in addition, in order to improve the dust collection effect, as shown in fig. 7, one connecting rod assembly can drive two driving assemblies, so that two dust collection units perform dust collection on the skip car 8; when the skip car 8 is separated from one connecting rod assembly, the skip car is just contacted with the next connecting rod assembly, so that different dust collection units can be communicated with the induced draft fan of the bag-type dust collector.
Working principle: in the feeding process of the skip 8, the skip 8 moves along the skip track 2, in the moving process of the skip 8, the wheel part of the skip 8 is abutted against the connecting block 37 to enable the supporting plate 33 to move downwards, then the skip 8 moves onto the supporting plate 33, in the moving process of the supporting plate 33, the gear II 31 is driven by the rack plate 32 to rotate under the action of the connecting rod I34, the connecting rod II 36 and the connecting plate 35, the gear II 31 drives the rotating ring 21 to rotate, the rotating ring 21 is meshed with the gear I22, so that the rotating drum 7 rotates, the through hole I71 on the rotating drum 7 is communicated with the through hole II 61 on the lower air drum 6 from a non-communicated (i.e. staggered state), and the dust collection mechanism is communicated with the dust collection unit closest to the skip 8, so that generated dust can be absorbed when the skip 8 moves into the dust collection box 11, and dust is absorbed through the lower air drum 6, the rotating drum 7, the upper air drum 5, the cavity 9 and the air duct 12, and the dust collection box 11 are sucked by the bag dust collector, so that the dust collection purpose is achieved;
in the moving process of the skip 8, the skip 8 is contacted with a plurality of connecting rod assemblies in sequence, so that different dust collection units are triggered by the driving assemblies to conduct dust collection on the skip.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (5)
1. The blast furnace feeding inclined bridge comprises an inclined bridge and a skip car track arranged on the inclined bridge, and is characterized by further comprising a dust removing pipeline sleeved on the inclined bridge;
a dust collection mechanism and a dust collection mechanism are arranged in the dust collection pipeline;
the dust removing mechanism is communicated with the dust collecting mechanism, and dust generated during feeding of the skip can be sucked into the dust removing mechanism through the dust collecting mechanism;
the dust collection mechanism comprises a plurality of dust collection units which are axially distributed in the dust collection pipeline, and the dust collection units are connected with the inner wall of the dust collection pipeline through brackets; the dust collection unit comprises a plurality of air suction cylinder assemblies which are circumferentially distributed on the bracket;
the air suction cylinder assembly comprises an upper air cylinder, a lower air cylinder and a rotary cylinder communicated with the upper air cylinder and the lower air cylinder, and the upper air cylinder and the lower air cylinder are respectively connected with the outer side and the inner side of the bracket; the bottom of the rotary drum is provided with a plurality of first through holes, and the top of the lower air duct is provided with a plurality of second through holes;
the inclined bridge is provided with a plurality of connecting rod assemblies which are in one-to-one correspondence with the dust collection units, the bracket is internally provided with driving assemblies connected with the connecting rod assemblies, when the skip car moves to one of the connecting rod assemblies, the corresponding driving assemblies can drive the rotary drum to rotate, so that the first through hole and the second through hole are switched from a dislocation state to a communication state, and the dust collection mechanism only absorbs dust through the dust collection units positioned beside the skip car;
the driving assembly comprises a swivel rotationally arranged in the bracket, teeth are arranged on the inner side of the swivel and towards the side of the rotary drum, a first gear meshed with the teeth on the side of the swivel is arranged on the rotary drum, and the connecting rod assembly is meshed with the teeth on the inner side of the swivel;
the connecting rod assembly comprises a second gear rotatably arranged on the inclined bridge, a rack plate in meshed connection with the second gear, and a supporting plate arranged on the inner side of the skip car track;
the supporting plate is connected with a connecting plate positioned below the inclined bridge through a plurality of first connecting rods, and the connecting plate is connected with the rack plate through a second connecting rod;
the second gear is in meshed connection with the driving assembly;
the rotary drum is sleeved with a torsion spring, one end of the torsion spring is connected to the rotary drum, the other end of the torsion spring is connected to the lower air duct, and under the action of the torsion spring, the first through hole and the second through hole are in a dislocation state;
the connecting plate is connected with the lower side of the inclined bridge through a plurality of compression springs.
2. The blast furnace charging inclined bridge according to claim 1, wherein the dust removing mechanism comprises a dust removing box and a bag-type dust remover arranged in the dust removing box, a cavity is formed in the pipe wall of the dust removing pipe, the dust removing box is communicated with the cavity through an air pipe, and the dust collecting unit is communicated with the cavity through the upper air pipe.
3. A blast furnace charging inclined bridge as claimed in claim 1, wherein the end of said lower wind barrel is provided with a horn-shaped tuyere.
4. The blast furnace charging inclined bridge according to claim 1, wherein the supporting plates are provided with quarter-round connecting blocks at both ends.
5. The blast furnace charging inclined bridge of claim 1, wherein the upper half part of the dust removing pipeline is made of aluminum alloy, the lower half part of the dust removing pipeline is made of steel, and a plurality of supporting frames are arranged on the lower side of the dust removing pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210580444.1A CN114934145B (en) | 2022-05-26 | 2022-05-26 | Blast furnace feeding inclined bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210580444.1A CN114934145B (en) | 2022-05-26 | 2022-05-26 | Blast furnace feeding inclined bridge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114934145A CN114934145A (en) | 2022-08-23 |
| CN114934145B true CN114934145B (en) | 2023-11-21 |
Family
ID=82863694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210580444.1A Active CN114934145B (en) | 2022-05-26 | 2022-05-26 | Blast furnace feeding inclined bridge |
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| Country | Link |
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| CN (1) | CN114934145B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200224812Y1 (en) * | 2000-12-27 | 2001-05-15 | 포항종합제철주식회사 | Dust removing apparatus of dust collector duct |
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| CN204162734U (en) * | 2014-11-22 | 2015-02-18 | 山东盛阳铁合金有限公司 | A kind of novel blast-furnace uniform distribution system |
| CN204529666U (en) * | 2015-04-16 | 2015-08-05 | 唐山钢铁国际工程技术有限公司 | A kind of lime shaft kiln skew bridge top dedusting tightness system |
| CN204544943U (en) * | 2015-04-16 | 2015-08-12 | 唐山钢铁国际工程技术有限公司 | Truck dust arrester bottom a kind of lime shaft kiln skew bridge |
| CN208234933U (en) * | 2017-12-27 | 2018-12-14 | 潍坊特钢集团有限公司 | A kind of blast fumance dnockout dust pelletizing system |
| CN208631700U (en) * | 2018-07-04 | 2019-03-22 | 唐钢国际工程技术股份有限公司 | A kind of list thorax lime shaft kiln kiln top hopper dust-extraction unit |
| KR20210009640A (en) * | 2019-07-17 | 2021-01-27 | 주식회사 포스코 | Device for removing dust for hopper of charging car |
| CN212857059U (en) * | 2020-07-10 | 2021-04-02 | 浙江宏天新材料科技有限公司 | Mobile dust removal equipment for batching plant |
| CN213739544U (en) * | 2020-10-09 | 2021-07-20 | 南京金桓电子科技有限公司 | Dust removal system for blast furnace |
| CN113894130A (en) * | 2021-11-11 | 2022-01-07 | 武汉君善建混凝土有限公司 | Environment-friendly dust pelletizing system of concrete production workshop |
-
2022
- 2022-05-26 CN CN202210580444.1A patent/CN114934145B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR200224812Y1 (en) * | 2000-12-27 | 2001-05-15 | 포항종합제철주식회사 | Dust removing apparatus of dust collector duct |
| CN202316475U (en) * | 2011-10-21 | 2012-07-11 | 宝钢集团新疆八一钢铁有限公司 | Dust removing and sucking device for iron-casting machine |
| CN204162734U (en) * | 2014-11-22 | 2015-02-18 | 山东盛阳铁合金有限公司 | A kind of novel blast-furnace uniform distribution system |
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| CN114934145A (en) | 2022-08-23 |
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