CN114410869A - Heat-resistant movable blast furnace taphole dust removal device and method - Google Patents
Heat-resistant movable blast furnace taphole dust removal device and method Download PDFInfo
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- CN114410869A CN114410869A CN202210078402.8A CN202210078402A CN114410869A CN 114410869 A CN114410869 A CN 114410869A CN 202210078402 A CN202210078402 A CN 202210078402A CN 114410869 A CN114410869 A CN 114410869A
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- sealing door
- taphole
- dust
- blast furnace
- dust hood
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- 239000000428 dust Substances 0.000 title claims abstract description 132
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000007789 sealing Methods 0.000 claims abstract description 124
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 22
- 239000010959 steel Substances 0.000 claims abstract description 22
- 238000000576 coating method Methods 0.000 claims abstract description 8
- 230000007246 mechanism Effects 0.000 claims description 12
- 238000010079 rubber tapping Methods 0.000 claims description 12
- 239000003638 chemical reducing agent Substances 0.000 claims description 11
- 230000009471 action Effects 0.000 claims description 8
- 230000001681 protective effect Effects 0.000 claims description 8
- 238000010030 laminating Methods 0.000 claims description 6
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 238000005507 spraying Methods 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 230000001360 synchronised effect Effects 0.000 claims description 2
- 239000000779 smoke Substances 0.000 abstract description 11
- 238000005265 energy consumption Methods 0.000 abstract description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 28
- 229910052742 iron Inorganic materials 0.000 description 15
- 230000005855 radiation Effects 0.000 description 13
- 230000008569 process Effects 0.000 description 5
- 230000000903 blocking effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000003344 environmental pollutant Substances 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 231100000719 pollutant Toxicity 0.000 description 4
- 238000005266 casting Methods 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 206010019345 Heat stroke Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 150000002505 iron Chemical class 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Classifications
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/22—Dust arresters
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/14—Discharging devices, e.g. for slag
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The invention discloses a heat-resistant movable blast furnace taphole dust removal device and a method, wherein the dust removal device comprises a dust hood arranged above a taphole, a gap is formed between the dust hood and the taphole, two symmetrical side surfaces of the dust hood are respectively connected with a first sealing door and a second sealing door, the first sealing door and the second sealing door can be selectively opened or closed, one side of the dust hood adjacent to the first sealing door and the second sealing door is attached to the outer wall of the taphole, the other side of the dust hood is provided with a plugging piece, when the plugging piece is attached to the dust hood, a relatively sealed space is formed between the plugging piece, the first sealing door, the second sealing door, the dust hood and the outer wall on the taphole, corrugated steel plates are arranged on the inner walls of the first sealing door and the second sealing door, and radiation-proof coatings are sprayed on two sides of the corrugated steel plates; according to the invention, a closed space is formed above the tap hole, so that the dedusting air volume is reduced, and the energy consumption is reduced; meanwhile, the smoke can be effectively prevented from escaping, the unorganized smoke emission of the factory building is reduced, and the post environment of the factory building is ensured.
Description
Technical Field
The invention relates to the technical field of blast furnace tapping dust removal, in particular to a heat-resistant movable blast furnace tapping hole dust removal device and method.
Background
The blast furnace casting house is used as a core procedure factory building for steel production, the dust production can reach 3 kg/t-iron, and the environmental problem is very serious. In the tapping process, air is heated by high-temperature molten iron to form hot plumes, pollutants such as dust rise along with the hot plumes and are diffused, and the environment of a factory building is polluted.
The main dust sources of the casting house comprise a taphole, a main channel, a skimmer, an iron channel, a slag channel, a swing spout and the like, wherein the pollutants at the taphole account for more than 30 percent of the total amount and are the most important treatment areas. Molten iron is sprayed into the main channel from the iron notch, and during the spraying process, the molten iron and impurities carried by the molten iron contact with air, so that a large amount of high-temperature smoke dust and pollutants such as CO, NOx and the like are generated. At present, the most common dust removal device for the taphole is a top suction cover, but the dust removal effect of the common open top suction cover is poor, smoke dust easily escapes to the environment from the lower part of the dust removal cover, and only the air suction volume can be increased and the energy consumption can be increased in order to improve the dust removal efficiency. The iron notch dust removal of a part of cast house adopts the form of an iron notch closed small chamber, but the smoke concentration in the closed small chamber is high, the heat radiation is serious, and the body of an operator is greatly damaged.
Besides dust and harmful gases, high-temperature heat sources are also present in the cast house. The temperature of molten iron can reach 1400 ℃, but a common iron outlet dust removal device does not have any heat radiation prevention measure, the radiation temperature of a local working area can reach 100 ℃, and a heatstroke event of an operator often happens in summer. The problem of radiant heat pollution near the taphole is quite serious.
Therefore, the problems to be solved by the invention are that the overflow of high-temperature smoke dust at the taphole is reduced, the dedusting air volume is reduced, the heat radiation of the taphole to the external environment is reduced, the post environment is improved, and the comfort of operators is improved.
Disclosure of Invention
The invention aims to provide a heat-resistant movable blast furnace taphole dust removing device, which aims to solve the problems of reducing the overflow of high-temperature smoke dust at a taphole, reducing the dust removing air quantity, reducing the heat radiation of the taphole to the external environment, improving the post environment and improving the comfort of operators.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a hinder hot movable blast furnace taphole dust collector, dust collector is including installing the dust excluding hood in the taphole top, the dust excluding hood with the clearance has between the taphole, two symmetrical sides of dust excluding hood are connected with first sealing door and second sealing door respectively, first sealing door and second sealing door alternative are opened or are closed, the dust excluding hood is last to be laminated with the outer wall of taphole, opposite side and the one side that first sealing door and second sealing door are adjacent is equipped with the shutoff piece when shutoff piece and dust excluding hood are laminated, form a relatively sealed space between the outer wall on shutoff piece, first sealing door, second sealing door, dust excluding hood and the taphole, first sealing door and second sealing door inner wall all are equipped with the ripple steel sheet, and the equal spraying radiation protection coating in ripple steel sheet's the two sides.
As a preferred embodiment of the present invention: and the dust hood is provided with a driving part for driving the first sealing door and the second sealing door to be synchronously opened or independently opened.
As a preferred embodiment of the present invention: the dust removal cover is provided with a support, a first outrigger is arranged on the support, a second outrigger is arranged on one side opposite to the first outrigger, a first rotating shaft and a second rotating shaft are respectively and rotatably arranged on the first outrigger and the second outrigger, the first rotating shaft and the second rotating shaft are respectively connected with a tensile piece capable of being wound, the tail end of the tensile piece is connected with a first sealing door and a second sealing door, and the two groups of driving parts are respectively used for driving the first rotating shaft and the second rotating shaft to rotate.
As a preferred embodiment of the present invention: the two sets of driving parts comprise first motors connected to the support, speed reducers located at output ends of the first motors, and synchronizing mechanisms located between output ends of the speed reducers and the first rotating shafts or the second rotating shafts.
As a preferred embodiment of the present invention: the synchronous mechanism comprises a first belt wheel fixedly arranged on the first rotating shaft or the second rotating shaft, a second belt wheel arranged at the output end of the speed reducer and a belt sleeved on the first belt wheel and the second belt wheel, a protective cover is arranged on the support, and the first belt wheel, the second belt wheel and the belt are all arranged in the protective cover.
As a preferred embodiment of the present invention: the tensile pieces are chains or steel wire ropes, two groups of connecting parts are arranged on the outer walls of the first sealing door and the second sealing door, and each group of tensile pieces is two and the tail ends of the tensile pieces are connected with the connecting parts.
As a preferred embodiment of the present invention: the bottom and the front side opening box that the shutoff piece comprises left side board, right side board, roof and back wall, left side board and right side board bottom all are equipped with from the driving wheel, are located from the driving wheel bottom to be equipped with and install at subaerial track, the front side opening of box and first sealing door and second sealing door realize that the laminating forms relative inclosed space.
As a preferred embodiment of the present invention: rotate through support piece on the back wall of box and be equipped with the third pivot, third pivot both ends fixedly connected with slides the action wheel on the track, be equipped with energy portion on the back wall, with energy portion electric connection's second motor, the output of second motor is connected with and is used for the drive third pivot pivoted shaft coupling, be connected with on the box and be used for control the controller that the second motor is just reversing.
As a preferred embodiment of the present invention: dust collector is still including being used for locking concrete locking mechanism between box and the dust excluding hood, locking mechanism is including rotating the dwang of connection on first sealing door and second sealing door, with dwang integrated into one piece's action bars, all be connected with "L" shape pothook on the left side board of box and the right side board, the action bars can be arranged in the pothook, just fixedly connected with locating part on the action bars are arranged in when in the pothook, the locating part offsets with the lateral wall of pothook.
As a preferred embodiment of the present invention: add the dust excluding hood directly over the blast furnace taphole, dust excluding hood one side and the wall laminating of taphole outside, its characterized in that: when tapping the blast furnace, a closed space is formed between the dust hood and the tapping hole, and when workers open and block the tapping hole or overhaul equipment, the closed space is opened to form a gap for the workers to operate.
Compared with the prior art, the invention has the beneficial effects that:
1. a closed space is formed above the tap hole, so that the dedusting air quantity is reduced, and the energy consumption is reduced; meanwhile, the smoke can be effectively prevented from escaping, the unorganized smoke emission of the factory building is reduced, and the post environment of the factory building is ensured.
2. The first sealing door, the second sealing door and the plugging piece below the dust hood can move, so that the dust removal effect can be ensured, and the stokehole operation is not influenced.
3. First door and the second of sealing both sides spraying radiation protection coating, first door and the second of sealing are corrugated steel plate material in order to increase radiation protection coating surface area, reinforcing radiation protection effect. First seal door and second seal door perpendicular to ground and separate high temperature heat source and staff when tapping, the outwards heat radiation volume of iron notch that can significantly reduce improves the factory building thermal environment, reduces operation workman and feels the temperature.
Drawings
FIG. 1 is a schematic perspective view of a heat-resistant movable blast furnace taphole dust removing apparatus according to the present invention;
FIG. 2 is a top view of a heat-resistant movable dust removing apparatus for a taphole of a blast furnace according to the present invention;
FIG. 3 is a left side view of a heat-resistant movable type blast furnace taphole dust removing apparatus according to the present invention;
FIG. 4 is a schematic perspective view of a heat-resistant movable blast furnace taphole dust removing apparatus according to the present invention;
FIG. 5 is a schematic three-dimensional view of a heat-resistant movable dust removing device for a blast furnace taphole according to the present invention;
FIG. 6 is a schematic view showing a connection structure of a dust hood of a heat-resistant movable blast furnace taphole dust removing apparatus of the present invention with a first sealing door and a second sealing door;
FIG. 7 is a schematic structural view of a plugging member of a heat-resistant movable blast furnace taphole dust removing apparatus according to the present invention;
FIG. 8 is a schematic structural view of part A of FIG. 3 of a heat-resistant movable type blast furnace taphole dust removing apparatus according to the present invention.
In the figure: 100. a track; 102. a driven wheel; 103. a right side plate; 104. a top plate; 105. a left side plate; 106. a rear wall; 200. an energy source section; 201. a controller; 203. a second motor; 204. a coupling; 205. a third rotating shaft; 206. a support member; 207. a driving wheel; 301. a first sealing door; 302. a second sealing door; 303. a corrugated steel plate; 304. a dust hood; 305. a support; 306. a first outrigger; 307. a second outwardly extending support; 308. a first rotating shaft; 309. a second rotating shaft; 310. a first baffle group; 311. a second baffle group; 312. a tensile member; 313. a connecting portion; 400. a first motor; 401. a speed reducer; 402. a protective cover; 403. a second pulley; 404. a belt; 405. a first pulley; 500. a locking mechanism; 501. rotating the rod; 502. a hook; 503. an operating lever; 504. and a limiting member.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail and fully with reference to the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It is to be understood that the terms "comprises/comprising," "consisting of … …," or any other variation, are intended to cover a non-exclusive inclusion, such that a product, device, process, or method that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such product, device, process, or method if desired. Without further limitation, an element defined by the phrases "comprising/including … …," "consisting of … …," or "comprising" does not exclude the presence of other like elements in a product, device, process, or method that comprises the element.
It will be further understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like, refer to an orientation or positional relationship as shown in the drawings, which is meant only to facilitate describing the invention and to simplify the description, and do not indicate or imply that the referenced device, component, or structure must have a particular orientation, be constructed or operated in a particular orientation, and is not to be construed as limiting the invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The technical solutions provided by the embodiments of the present invention are described in detail below with reference to the accompanying drawings.
Referring to fig. 1-8, an embodiment of the present invention: a heat-resistant movable dust removal device for a blast furnace taphole comprises a dust hood 304 arranged above the taphole, a gap is arranged between the dust hood 304 and the taphole, two symmetrical side surfaces of the dust hood 304 are respectively connected with a first sealing door 301 and a second sealing door 302, the first sealing door 301 and the second sealing door 302 can be selectively opened or closed, one side of the dust hood 304 adjacent to the first sealing door 301 and the second sealing door 302 is attached to the outer wall of the taphole, the other side of the dust hood is provided with a plugging piece, when the plugging piece is attached to the dust hood 304, a relatively sealed space is formed between the plugging piece, the first sealing door 301, the second sealing door 302, the dust hood 304 and the outer wall on the taphole, the inner walls of the first sealing door 301 and the second sealing door 302 are both provided with corrugated steel plates 303, radiation-proof coatings are sprayed on both sides of the corrugated steel plates 303, when the taphole is normally tapped, the first sealing door 301 and the second sealing door 302 are perpendicular to the ground, the shutoff piece removes the place ahead of dust excluding hood 304 and seals a door 301 and a second and close 302 laminating with first, thereby form a relative sealed space, when the workman carries out operations such as opening stifled iron mouthful or equipment overhauls, the first door 301 that seals of protecting against radiation and a second seal door 302 are opened and can be on a parallel with ground, the shutoff piece removes the distal side to dust excluding hood 304, thereby do not influence its work, relative sealed space can be understood as not totally enclosed, as long as play and reduce the air extraction volume, it can to reduce the effect that the dust point pollutant was escaped to reduce the energy consumption.
Referring to fig. 1-8, an embodiment of the present invention: a heat-resistant movable dust removal device for a blast furnace taphole comprises a dust hood 304 arranged above the taphole, a gap is arranged between the dust hood 304 and the taphole, two symmetrical side surfaces of the dust hood 304 are respectively connected with a first sealing door 301 and a second sealing door 302, the first sealing door 301 and the second sealing door 302 can be selectively opened or closed, one side of the dust hood 304 adjacent to the first sealing door 301 and the second sealing door 302 is attached to the outer wall of the taphole, the other side of the dust hood is provided with a plugging piece, when the plugging piece is attached to the dust hood 304, a relatively sealed space is formed between the plugging piece, the first sealing door 301, the second sealing door 302, the dust hood 304 and the outer wall on the taphole, the inner walls of the first sealing door 301 and the second sealing door 302 are both provided with corrugated steel plates 303, radiation-proof coatings are sprayed on both sides of the corrugated steel plates 303, when the taphole is normally tapped, the first sealing door 301 and the second sealing door 302 are perpendicular to the ground, the blocking piece moves to the front of the dust hood 304 and is attached to the first sealing door 301 and the second sealing door 302, so that a relatively sealed space is formed, when workers carry out operations such as opening and blocking iron openings or equipment maintenance, the first sealing door 301 and the second sealing door 302 which are used for preventing radiation are opened and can be parallel to the ground, the blocking piece moves to the far side of the dust hood 304, so that the work of the blocking piece is not influenced, a driving part for driving the first sealing door 301 and the second sealing door 302 to be opened synchronously or independently is arranged on the dust hood 304, a bracket 305 is arranged on the dust hood 304, a first outrigger 306 is arranged on the bracket 305, a second outrigger 307 is arranged on one side opposite to the first outrigger 306, a first rotating shaft 308 and a second rotating shaft 309 are respectively and rotatably arranged on the first outrigger 306 and the second outrigger 307, tensile pieces 312 which can be connected to the first rotating shaft 308 and the second rotating shaft 309, and the tail ends of the tensile pieces 312 are connected with the first sealing door 301 and the second sealing door 302, the two sets of driving portions are respectively used for driving the first rotating shaft 308 and the second rotating shaft 309 to rotate, the driving portions drive the first rotating shaft 308 and/or the second rotating shaft 309 to rotate, when the first rotating shaft 308 rotates, the tensile member 312 is wound on the first rotating shaft 308 to open the second sealing door 302 in an upward-overturning manner around the side portion of the dust hood 304, and when the second rotating shaft 309 rotates, the tensile member 312 is wound on the second rotating shaft 309 to open the first sealing door 301 in an upward-overturning manner around the side portion of the dust hood 304.
Further, the two sets of driving parts each include a first motor 400 connected to the bracket 305, a speed reducer 401 located at the output end of the first motor 400, and a synchronizing mechanism located between the output end of the speed reducer 401 and the first rotating shaft 308 or the second rotating shaft 309, the synchronizing mechanism includes a first pulley 405 fixedly disposed on the first rotating shaft 308 or the second rotating shaft 309, a second pulley 403 disposed on the output end of the speed reducer 401, and a belt 404 sleeved on the first pulley 405 and the second pulley 403, the bracket 305 is provided with a protective cover 402, the first pulley 405, the second pulley 403, and the belt 404 are disposed in the protective cover 402, two sets of connecting parts 313 are disposed on the outer walls of the first sealing door 301 and the second sealing door 302, each set of tensile members 312 is two, and the tail ends thereof are connected to the connecting parts 313, the power is finally transmitted to the first rotating shaft 308 or the second rotating shaft 309 through the synchronizing mechanism to realize transmission by starting the first motor 400 and decelerating through the speed reducer 401, in this embodiment, the tensile member 312 is a chain or a steel wire rope, the first rotating shaft 308 and the second rotating shaft 309 are both provided with a first baffle group 310 and a second baffle group 311, the first baffle group 310 and the second baffle group 311 are both composed of two baffle plates fixed on the first rotating shaft 308 and the second rotating shaft 309, a gap is formed between the two baffle plates, the two baffle plates are used for winding the steel wire rope or the chain, the chain and the steel wire rope are ensured to be wound in a specified area, and the protective cover 402 plays a role in protection.
Referring to fig. 1-8, a heat-resistant movable dust removing device for a blast furnace taphole comprises a dust hood 304 installed above the taphole, a gap is formed between the dust hood 304 and the taphole, two symmetrical side surfaces of the dust hood 304 are respectively connected with a first sealing door 301 and a second sealing door 302, the first sealing door 301 and the second sealing door 302 can be selectively opened or closed, one side of the dust hood 304 adjacent to the first sealing door 301 and the second sealing door 302 is attached to the outer wall of the taphole, the other side is provided with a plugging member, when the plugging member is attached to the dust hood 304, a relatively sealed space is formed between the plugging member, the first sealing door 301, the second sealing door 302, the dust hood 304 and the outer wall of the taphole, the inner walls of the first sealing door 301 and the second sealing door 302 are provided with corrugated steel plates 303, and radiation-proof coatings are sprayed on both sides of the corrugated steel plates 303, the first sealing door 301 and the second sealing door 302 are vertical to the ground, the plugging piece moves to the front of the dust hood 304 and is attached to the first sealing door 301 and the second sealing door 302, so that a relatively sealed space is formed, when workers perform operations such as opening and plugging iron openings or equipment maintenance, the first sealing door 301 and the second sealing door 302 which are used for preventing radiation can be opened and can be parallel to the ground, and the plugging piece moves to the far side of the dust hood 304, so that the work of the plugging piece is not influenced, the invention provides an embodiment that: the shutoff piece is by left side board 105, right side board 103, bottom and front side opening box that roof 104 and back wall 106 are constituteed, left side board 105 and right side board 103 bottom all are equipped with from driving wheel 102, it is equipped with and installs track 100 on subaerial to be located from driving wheel 102 bottom, the front side opening of box realizes laminating formation relative inclosed space with first door 301 and second door 302, can be at left side board 105, right side board 103, the inboard of roof 104 and back wall 106 all sets up the corrugated steel plate 303 the same with first door 301 and second door 302 inboard, the wave form of corrugated steel plate 303 is the opening trapezoidally, trapezoidal degree of depth should not be too big in order to cause the dust to gather, it is preferable to use degree of depth 20 ~ 50mm, the angle is 45 ~ 60, length is 60 ~ 200 mm.
Referring to fig. 4 and 5, an embodiment of the present invention: a third rotating shaft 205 is rotatably arranged on the rear wall 106 of the box body through a supporting piece 206, two ends of the third rotating shaft 205 are fixedly connected with a driving wheel 207 which slides on the track 100, an energy source part 200 is arranged on the rear wall 106, the second motor 203 is electrically connected with the energy source part 200, the energy source part 200 can adopt a storage battery or a diesel generator component and the like as the power supply energy source of the second motor 203, the output end of the second motor 203 is connected with a coupling 204 for driving the third rotating shaft 205 to rotate, the box body is connected with a controller 201 for controlling the forward and reverse rotation of the second motor 203, the third rotating shaft 205 is driven to rotate by starting the second motor 203 through the coupling 204, thereby generating power to the box body, the controller 201 can be composed of a controller body and an operation panel, signals are transmitted to the controller body through the operation panel, thereby controlling the operation of the second motor 203, since the driving method is a mature design in the prior art and will not be described herein.
Referring to fig. 1 and 8, an embodiment of the present invention includes: the dust removing device further comprises a specific locking mechanism 500 for locking the space between the box body and the dust removing cover 304, the locking mechanism 500 comprises a rotating rod 501 rotatably connected to the first sealing door 301 and the second sealing door 302, an operating rod 503 integrally formed with the rotating rod 501, L-shaped hooks 502 are connected to the left side plate 105 and the right side plate 103 of the box body, the operating rod 503 can be arranged in the hooks 502, a limiting member 504 is fixedly connected to the operating rod 503, when the operating rod 503 is arranged in the hooks 502, the limiting member 504 abuts against the side wall of the hooks 502, after the box body is attached to the dust removing cover 304, in order to prevent the box body from being separated from the dust removing cover 304, and the first sealing door 301 and the second sealing door 302 are accidentally opened, therefore, the rotating rod 501 and the integrally formed operating rod 503 are rotatably arranged on the first sealing door 301 and the second sealing door 302, the hooks 502 are arranged on the box body, and the operating rod 503 is clamped into the hooks 502, at this time, the limiting member 504 abuts against the side of the hook 502 to achieve double locking, i.e. prevent the case and the dust hood 304 from being accidentally opened and also prevent the two sealing doors from being accidentally opened.
The invention adds a dust hood 304 on the top of the blast furnace taphole, one side of the dust hood 304 is jointed with the outer wall of the taphole, when tapping the blast furnace, a closed space is formed between the dust hood 304 and the taphole, and when workers carry out the maintenance of the taphole or equipment, the closed space is opened to form a gap for the workers to operate, in the invention, when normal tapping, a first sealing door 301 and a second sealing door 302 are vertical to the ground, a plugging piece moves to the front of the dust hood 304 and is jointed with the first sealing door 301 and the second sealing door 302, thereby forming a relatively sealed space, when workers carry out the maintenance of the taphole or the like, the radiation-proof first sealing door 301 and the second sealing door 302 are opened to be parallel to the ground, the plugging piece moves to the far side of the dust hood 304, thereby not influencing the work of the dust hood, because the closed space is formed above the taphole, the dust removal is reduced, the energy consumption is reduced; meanwhile, the escape of smoke dust can be effectively prevented, the unorganized smoke dust emission of a factory building is reduced, the post environment of the factory building is ensured, the general operation space in front of a furnace in a blast furnace casting house is limited, and the form of the dust removal cover 304 is greatly limited.
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 attributes 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.
Claims (10)
1. The heat-resistant movable blast furnace taphole dust removing device is characterized in that the dust removing device comprises a dust hood (304) arranged above a taphole, a gap is reserved between the dust hood (304) and the taphole, two symmetrical side surfaces of the dust hood (304) are respectively connected with a first sealing door (301) and a second sealing door (302), the first sealing door (301) and the second sealing door (302) can be selectively opened or closed, one side of the dust hood (304) adjacent to the first sealing door (301) and the second sealing door (302) is attached to the outer wall of the taphole, and the other side of the dust hood is provided with a sealing piece which is attached to the dust hood (304), when the sealing piece is attached to the dust hood (304), a relatively sealed space is formed between the sealing piece, the first sealing door (301), the second sealing door (302), the dust hood (304) and the outer wall of the taphole, and corrugated steel plates (303) are arranged on the inner walls of the first sealing door (301) and the second sealing door (302), and spraying radiation-proof coatings on both sides of the corrugated steel plate (303).
2. The heat-resistant movable dust removing device for the taphole of the blast furnace according to claim 1, wherein: and a driving part for driving the first sealing door (301) and the second sealing door (302) to be synchronously opened or independently opened is arranged on the dust hood (304).
3. The heat-resistant movable dust removing device for the taphole of the blast furnace according to claim 2, wherein: install support (305) on dust excluding hood (304), be equipped with first outrigger (306) on support (305), with first outrigger (306) one side relatively is equipped with second outrigger (307), rotate respectively on first outrigger (306) and the second outrigger (307) and be provided with first pivot (308) and second pivot (309) first pivot (308) with all be connected with tensile piece (312) that can twine on second pivot (309), tensile piece (312) end is sealed door (302) with first (301) and second and is connected, the drive division is two sets of, is used for driving first pivot (308) and second pivot (309) rotation respectively.
4. The heat-resistant movable dust removing device for the taphole of the blast furnace according to claim 3, wherein: the two groups of driving parts respectively comprise a first motor (400) connected to the support (305), a speed reducer (401) positioned at the output end of the first motor (400), and a synchronizing mechanism positioned between the output end of the speed reducer (401) and the first rotating shaft (308) or the second rotating shaft (309).
5. The heat-resistant movable dust removing device for the taphole of the blast furnace according to claim 4, wherein: the synchronous mechanism comprises a first belt wheel (405) fixedly arranged on the first rotating shaft (308) or the second rotating shaft (309), a second belt wheel (403) arranged at the output end of the speed reducer (401), and a belt (404) sleeved on the first belt wheel (405) and the second belt wheel (403), a protective cover (402) is arranged on the support (305), and the first belt wheel (405), the second belt wheel (403) and the belt (404) are arranged in the protective cover (402).
6. The heat-resistant movable dust removing device for the taphole of the blast furnace according to claim 3, wherein: the tensile pieces (312) are chains or steel wire ropes, two groups of connecting parts (313) are arranged on the outer walls of the first sealing door (301) and the second sealing door (302), and each group of tensile pieces (312) is two and the tail ends of the tensile pieces are connected with the connecting parts (313).
7. The heat-resistant movable dust removing device for the taphole of the blast furnace according to any one of claims 1 to 6, wherein: the bottom and the front side opening box that shutoff piece comprises left side board (105), right side board (103), roof (104) and back wall (106), left side board (105) and right side board (103) bottom all are equipped with from driving wheel (102), are located from driving wheel (102) bottom being equipped with and installing track (100) subaerial, the front side opening of box realizes laminating formation airtight space relatively with first sealing door (301) and second sealing door (302).
8. The heat-resistant movable dust removing device for the taphole of the blast furnace according to claim 7, wherein: rotate through support piece (206) on the back wall (106) of box and be equipped with third pivot (205), third pivot (205) both ends fixedly connected with slides action wheel (207) on track (100), be equipped with energy portion (200) on back wall (106), with energy portion (200) electric connection's second motor (203), the output of second motor (203) is connected with and is used for the drive third pivot (205) pivoted shaft coupling (204), be connected with on the box and be used for control controller (201) that second motor (203) are just reversing.
9. The heat-resistant movable dust removing device for the taphole of the blast furnace according to claim 7, wherein: dust collector is still including being used for locking concrete locking mechanical system (500) between box and dust excluding hood (304), locking mechanical system (500) including rotate connect first dwang (501) of sealing door (301) and second and sealing door (302), with dwang (501) integrated into one piece's action bars (503), all be connected with "L" shape pothook (502) on left side board (105) and the right side board (103) of box, action bars (503) can be arranged in pothook (502), just fixedly connected with locating part (504) on action bars (503) are arranged in when in pothook (502), locating part (504) offset with the lateral wall of pothook (502).
10. The heat-resistant movable dust removing method for the taphole of the blast furnace according to claim 1, wherein: add dust excluding hood (304) directly over blast furnace taphole, dust excluding hood (304) one side and the laminating of taphole outside wall, its characterized in that: when the blast furnace is used for tapping, a closed space is formed between the dust hood (304) and the tapping hole, and when workers open and block the tapping hole or overhaul equipment, the closed space is opened to form a gap for the workers to operate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210078402.8A CN114410869A (en) | 2022-01-24 | 2022-01-24 | Heat-resistant movable blast furnace taphole dust removal device and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210078402.8A CN114410869A (en) | 2022-01-24 | 2022-01-24 | Heat-resistant movable blast furnace taphole dust removal device and method |
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| CN114410869A true CN114410869A (en) | 2022-04-29 |
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| CN202210078402.8A Pending CN114410869A (en) | 2022-01-24 | 2022-01-24 | Heat-resistant movable blast furnace taphole dust removal device and method |
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| CN202265585U (en) * | 2011-09-23 | 2012-06-06 | 中钢集团天澄环保科技股份有限公司 | Blast furnace iron tapping hole lifting sealing cover |
| CN203007292U (en) * | 2012-12-31 | 2013-06-19 | 王鸿 | Blast furnace tap hole smoke gathering device with high smoke gathering efficiency |
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| CN214053043U (en) * | 2020-11-27 | 2021-08-27 | 安阳钢铁股份有限公司 | Totally-enclosed main channel dust hood |
| CN214819233U (en) * | 2021-07-13 | 2021-11-23 | 安徽耀合家具有限公司 | Integrated efficient noise reduction and dust removal device for sliding table saw |
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2022
- 2022-01-24 CN CN202210078402.8A patent/CN114410869A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202265585U (en) * | 2011-09-23 | 2012-06-06 | 中钢集团天澄环保科技股份有限公司 | Blast furnace iron tapping hole lifting sealing cover |
| CN203007292U (en) * | 2012-12-31 | 2013-06-19 | 王鸿 | Blast furnace tap hole smoke gathering device with high smoke gathering efficiency |
| CN104152619A (en) * | 2014-07-31 | 2014-11-19 | 云南华云天朗环保有限责任公司 | Method for folding and unfolding high-temperature dust-collecting baffle plate |
| CN209655833U (en) * | 2019-03-20 | 2019-11-19 | 唐山正丰钢铁有限公司 | A kind of telescopic arc furnace dust hood |
| CN214053043U (en) * | 2020-11-27 | 2021-08-27 | 安阳钢铁股份有限公司 | Totally-enclosed main channel dust hood |
| CN214819233U (en) * | 2021-07-13 | 2021-11-23 | 安徽耀合家具有限公司 | Integrated efficient noise reduction and dust removal device for sliding table saw |
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Application publication date: 20220429 |