CN112626297A - Ignition device for blast furnace maintenance - Google Patents
Ignition device for blast furnace maintenance Download PDFInfo
- Publication number
- CN112626297A CN112626297A CN202011469817.5A CN202011469817A CN112626297A CN 112626297 A CN112626297 A CN 112626297A CN 202011469817 A CN202011469817 A CN 202011469817A CN 112626297 A CN112626297 A CN 112626297A
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- CN
- China
- Prior art keywords
- combustion chamber
- ignition
- plate
- blast furnace
- fixedly installed
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/002—Evacuating and treating of exhaust gases
Abstract
The invention provides an ignition device for blast furnace maintenance, and relates to the field of blast furnace ignition. This ignition is used in blast furnace maintenance, including the combustion chamber, the bottom of combustion chamber is connected and is link up there is the mechanism that draws in, and the inside of combustion chamber rotates and is connected with the center pin, and the surface top fixed mounting of center pin has drive mechanism, and the inside fixed mounting that the center pin is located the combustion chamber has the mechanism of lighting. This blast furnace overhauls and uses ignition, the driven gear is moved to the pushing down, can make sealed packet of net launch, it is rotatory to drive the blade simultaneously through the center pin rotation, the rotation through the blade can outwards take out the gas in the blast furnace, simultaneously can be through supplying gas ring connection oxygen mechanism, and then can shunt to oxygen through gas-supply pipe and reposition of redundant personnel room and make oxygen rush into the combustion chamber in, rotatory closing plate and seal ring rotate to sealed effect back simultaneously, rotatory striking plate and fixed striking plate friction produce the gas that the spark will mix coal gas and oxygen and ignite in the combustion chamber.
Description
Technical Field
The invention relates to the technical field of blast furnace ignition, in particular to an ignition device for blast furnace maintenance.
Background
The blast furnace uses steel plate as furnace shell, and refractory brick lining is built in the shell. The blast furnace body is divided into a furnace throat, a furnace body, a furnace waist, a furnace belly and a furnace hearth 5 from top to bottom. Because of the advantages of good economic index, simple process, large production capacity, high labor production efficiency, low energy consumption and the like of the blast furnace ironmaking technology, the iron produced by the method accounts for the vast majority of the total iron production in the world.
Residual gas in the blast furnace needs to be ignited and burnt out before the blast furnace is overhauled, so that gas poisoning accidents are avoided when workers enter the blast furnace for operation. The existing blast furnace ignition device is complex in arrangement and cannot control the ignition range.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides an ignition device for blast furnace maintenance, which solves the problems in the background art.
In order to achieve the purpose, the invention is realized by the following technical scheme: an ignition device for blast furnace maintenance comprises a combustion chamber, wherein a furling mechanism is connected and communicated at the bottom end of the combustion chamber, a central shaft is rotatably connected inside the combustion chamber, a transmission mechanism is fixedly installed at the top end of the outer surface of the central shaft, an ignition mechanism is fixedly installed inside the combustion chamber of the central shaft, a combustion-supporting mechanism is fixedly installed on the outer surface of the central shaft below the ignition mechanism, a sealing mechanism is fixedly installed on the outer surface of the central shaft below the combustion-supporting mechanism, blades are fixedly installed on the outer surface of the central shaft inside the furling mechanism, the furling mechanism comprises a furling head which is fixedly installed at the bottom end of the combustion chamber, a vent groove is formed in the surface of the furling head, a hinge rod is hinged inside the hinge groove, a sealing packing net is fixedly installed on the outer surface of the hinge rod, the combustion-supporting mechanism comprises a gas supply ring, the gas supply ring is fixedly arranged at the top end of the combustion chamber, one end of the gas supply ring, which is far away from the gas supply ring, is connected with and penetrates through a gas supply pipe, a branch flow chamber is connected with and penetrates through the gas supply pipe, shunting chamber fixed mounting is at the inner diapire of combustion chamber, and the outer fixed surface that the center pin is located shunting chamber department installs the extension rod, and the extension rod keeps away from the fixed mounting of center pin one end and has the sealing ring, sealing ring and shunting chamber laminating, sealing mechanism includes rotary seal board, and rotary seal board fixed mounting is at the surface of center pin, and rotary seal board, the inside of combustion chamber are located rotary seal board below fixed mounting and have fixed seal board, and fixed seal board's surface has been seted up and has been run through the groove.
Preferably, a snap ring is fixedly mounted at the top end of the combustion chamber, and the diameter of the snap ring is larger than that of the combustion chamber.
Preferably, a support ring is fixedly mounted in the combustion chamber below the flow dividing chamber, and the inner side of the support ring extends to the lower side of the sealing ring.
Preferably, the through groove is shaped like a sector, the rotary sealing plate is shaped like a sector, and the size of the rotary sealing plate is larger than that of the through groove.
Preferably, the through grooves, the shunting chambers, the fixed ignition plates and the vent grooves are located on the same axis, and the number of the through grooves, the shunting chambers, the fixed ignition plates and the vent grooves is the same.
Preferably, the arc length of the sealing ring is larger than that of the shunting chamber, and the thickness of the sealing ring is larger than that of the shunting chamber.
The invention has the following beneficial effects:
1. this blast furnace overhauls and uses ignition, driven gear is moved to the pushing down, can make sealed package net launch, it is rotatory to drive the driving gear through drive mechanism, it is rotatory to drive the center pin through driven gear, the center pin is rotatory to reach several effects simultaneously, first can the driving vane is rotatory, the gas in the blast furnace can outwards be taken out through the rotation of blade, simultaneously can be through the oxygen mechanism of connecting of air feed ring, and then can shunt to oxygen through gas-supply pipe and reposition of redundant personnel room and make oxygen rush into the combustion chamber, rotatory closing plate and sealed ring rotate to sealed effect back simultaneously, rotatory striking plate and fixed striking plate friction produce the gas that the spark will mix coal gas and oxygen and ignite in the combustion chamber.
2. This ignition is used in blast furnace maintenance, the shape that runs through the groove through the restriction is fan-shaped, and rotary seal plate's shape is fan-shaped, and rotary seal plate's size is greater than the size that runs through the groove to and the arc length of sealing ring is greater than the arc length of shunting chamber, and the thickness of sealing ring is greater than the thickness of shunting chamber, can play the effect of time delay opening through such setting, thereby can compensate the time of burning, avoid the backward flow of burning.
3. This blast furnace overhauls uses ignition, through sleeve fixed mounting at the surface of center pin, telescopic interior roof fixed mounting has compression spring, compression spring's bottom fixed mounting has rotatory board of striking sparks, and compression spring can play extruded effect, has solved among the prior art can guarantee after the wear that rotatory board of striking sparks can rub with fixed board of striking sparks all the time.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the mandrel attachment of the present invention;
FIG. 3 is a schematic view of the combustor attachment of the present invention;
FIG. 4 is a schematic view of the hinge rod connection of the present invention;
FIG. 5 is a schematic cross-sectional view of an ignition mechanism of the present invention;
FIG. 6 is a schematic view of the combustion supporting mechanism of the present invention;
fig. 7 is a schematic view of the sealing mechanism of the present invention.
Wherein, the combustion chamber-1, the furling mechanism-2, the central shaft-3, the transmission mechanism-4, the ignition mechanism-5, the combustion-supporting mechanism-6, the sealing mechanism-7, the blade-8, the snap ring-9, the furling head-201, the vent groove-202, the hinge groove-203, the hinge rod-204, the sealing wrapping net-205, the pressure plate-206, the driven gear-401, the driving gear-402, the power shaft-403, the support sleeve-404, the sleeve-501, the compression spring-502, the rotary ignition plate-503, the fixed ignition plate-504, the air supply ring-601, the air pipe-602, the flow dividing chamber-603, the extension rod-604, the sealing ring-605, the support ring-606, the rotary sealing plate-701, the fixed sealing plate-702, the combustion-supporting plate-702, through slot-703.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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.
The embodiment of the invention provides an ignition device for blast furnace maintenance, which comprises:
in the first embodiment, as shown in fig. 1 to 7, the first embodiment includes a combustion chamber 1, a furling mechanism 2 is connected to and penetrated through the bottom end of the combustion chamber 1, a central shaft 3 is rotatably connected inside the combustion chamber 1, a transmission mechanism 4 is fixedly installed at the top end of the outer surface of the central shaft 3, an ignition mechanism 5 is fixedly installed inside the combustion chamber 1 on the central shaft 3, a combustion-supporting mechanism 6 is fixedly installed on the outer surface of the central shaft 3 below the ignition mechanism 5, a sealing mechanism 7 is fixedly installed on the outer surface of the central shaft 3 below the combustion-supporting mechanism 6, a vane 8 is fixedly installed on the outer surface of the central shaft 3 inside the furling mechanism 2, a snap ring 9 is fixedly installed at the top end of the combustion chamber 1, the diameter of the snap ring 9 is larger than that of the combustion chamber 1, the snap ring 9 can be set to ensure that the device is snapped at, the surface of the furling head 201 is provided with a vent groove 202, the surface of the furling head 201 is provided with a hinge groove 203, the inside of the hinge groove 203 is hinged with a hinge rod 204, the outer surface of the hinge rod 204 positioned at the outer side of the furling head 201 is fixedly provided with a sealing packet net 205, the sealing packet net 205 is contacted with the inner wall of a blast furnace after being completely unfolded, the outer surface of the central shaft 3 positioned above the hinge rod 204 is fixedly sleeved with a pressing plate 206, the hinge rod 204 can be pressed to rotate by the downward movement of the pressing plate 206, the transmission mechanism 4 comprises a driven gear 401, the driven gear 401 is fixedly arranged at the top end of the central shaft 3, one side of the driven gear 401 is meshed with a driving gear 402, the middle part of the driving gear 402 is fixedly provided with a power shaft 403, the power shaft can be connected with an existing power mechanism to realize the rotation of the driving gear 402, the, the ignition mechanism 5 comprises a sleeve 501, the sleeve 501 is fixedly arranged on the outer surface of the central shaft 3, a compression spring 502 is fixedly arranged on the inner top wall of the sleeve 501, the compression spring 502 can play a role of extrusion, a rotary ignition plate 503 is fixedly arranged at the bottom end of the compression spring 502, the rotary ignition plate 503 is in a long strip shape, the rotary ignition plate 503 is in sliding connection with the sleeve 501 and is in sliding connection with the sleeve 501 up and down during sliding connection, so that synchronous motion can be ensured, the bottom end of the rotary ignition plate 503 is positioned below the sleeve 501, a fixed ignition plate 504 is fixedly arranged on the inner side of the combustion chamber 1 and is positioned below the rotary ignition plate 503, the fixed ignition plate 504 is divided into two parts, one part is an edge ring, the other part is a flat plate fixed on the inner side of the edge ring, the flat plate and the fixed ignition plate 504 have the same shape, sparks can be generated through the friction of the flat plate and the fixed ignition plate 504, the combustion-, one side that the air feed ring 601 is located combustion chamber 1 inside is connected and is had the air-supply pipe 602 to link through, the one end that the air-supply pipe 602 kept away from the air feed ring 601 is connected and is had the reposition of redundant personnel room 603 to link through, reposition of redundant personnel room 603 fixed mounting is at the inner bottom wall of combustion chamber 1, the outer surface fixed mounting that center pin 3 is located reposition of redundant personnel room 603 has the extension rod 604, the fixed mounting that extension rod 604 kept away from center pin 3 one end has sealing ring 605, the arc length of sealing ring 605 is greater than the arc length of reposition of redundant personnel room 603, the thickness of sealing ring 605 is greater than the thickness of reposition of redundant personnel room 603, can guarantee through such setting that sealing ring 605. Sealing ring 605 and the laminating of reposition of redundant personnel room 603, the below fixed mounting that the inside of combustion chamber 1 is located reposition of redundant personnel room 603 has support ring 606, the inboard of support ring 606 extends to the below of sealing ring 605, support ring 606 has played the effect of support, spacing effect has been played simultaneously, sealing mechanism 7 includes rotating seal plate 701, rotating seal plate 701 fixed mounting is at the surface of center pin 3, rotating seal plate 701, the inside of combustion chamber 1 is located rotating seal plate 701 below fixed mounting has fixed seal plate 702, the surface of fixed seal plate 702 has been seted up and has been run through groove 703. The through-groove 703 is fan-shaped, the rotary seal plate 701 is fan-shaped, and the size of the rotary seal plate 701 is larger than that of the through-groove 703, so that it can be ensured that the time when the combustion chamber 1 is in a sealed state is longer than the time of ignition, the through-groove 703, the flow dividing chamber 603, the fixed ignition plate 504, and the ventilation groove 202 are located on the same axis, and the number of the through-grooves 703, the flow dividing chamber 603, the fixed ignition plate 504, and the ventilation groove 202 is the same. Through such setting, combustion-supporting gas seal can be guaranteed, the combustion-supporting gas seal is in the same time point, and efficiency can be improved through setting up the multiunit.
When the device is used, the device is clamped above a blast furnace, the driven gear 401 is pressed downwards to enable the sealing net 205 to be unfolded, the driving gear 402 is driven to rotate through the transmission mechanism, the central shaft 3 can be driven to rotate through the driven gear 401, the central shaft 3 can simultaneously achieve several effects, the first blade 8 can be driven to rotate, gas in the blast furnace can be extracted outwards through the rotation of the blade 8, meanwhile, the device can be connected with an oxygen mechanism through the gas supply ring 601, oxygen can be shunted through the gas pipe 602 and the shunting chamber 603 to enable the oxygen to be flushed into the combustion chamber 1, after the rotating sealing plate 701 and the sealing ring 605 rotate to achieve the sealing effect, the rotating ignition plate 503 and the fixed ignition plate 504 rub to generate sparks to ignite the gas mixed with the oxygen in the combustion chamber, the gas continues to rotate, and the rotating sealing plate 701 and the sealing ring 605 can still achieve the sealing effect while rotating, after the combustion is finished, oxygen and coal gas are separated and continuously introduced.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a blast furnace overhauls uses ignition, includes combustion chamber (1), its characterized in that: the bottom end of the combustion chamber (1) is connected with and penetrates through the furling mechanism (2), the interior of the combustion chamber (1) is rotatably connected with a central shaft (3), the top end of the outer surface of the central shaft (3) is fixedly provided with a transmission mechanism (4), the central shaft (3) is positioned in the combustion chamber (1) and fixedly provided with an ignition mechanism (5), the outer surface of the central shaft (3) below the ignition mechanism (5) is fixedly provided with a combustion-supporting mechanism (6), the outer surface of the central shaft (3) below the combustion-supporting mechanism (6) is fixedly provided with a sealing mechanism (7), and the outer surface of the central shaft (3) inside the furling mechanism (2) is fixedly provided with;
the folding mechanism (2) comprises a folding head (201), the folding head (201) is fixedly installed at the bottom end of the combustion chamber (1), a vent groove (202) is formed in the surface of the folding head (201), a hinge groove (203) is formed in the surface of the folding head (201), a hinge rod (204) is hinged inside the hinge groove (203), a sealing wrapping net (205) is fixedly installed on the outer surface, located on the outer side of the folding head (201), of the hinge rod (204), and a pressing plate (206) is fixedly sleeved on the outer surface, located above the hinge rod (204), of the central shaft (3);
the transmission mechanism (4) comprises a driven gear (401), the driven gear (401) is fixedly installed at the top end of the central shaft (3), one side of the driven gear (401) is meshed with a driving gear (402), the middle of the driving gear (402) is fixedly installed with a power shaft (403), a supporting sleeve (404) is sleeved on the outer surface of the bottom end of the power shaft (403), and the supporting sleeve (404) is fixedly connected with the combustion chamber (1);
the ignition mechanism (5) comprises a sleeve (501), the sleeve (501) is fixedly installed on the outer surface of the central shaft (3), a compression spring (502) is fixedly installed on the inner top wall of the sleeve (501), a rotary ignition plate (503) is fixedly installed at the bottom end of the compression spring (502), the rotary ignition plate (503) is in sliding connection with the sleeve (501), the bottom end of the rotary ignition plate (503) is located below the sleeve (501), and a fixed ignition plate (504) is fixedly installed on the inner side of the combustion chamber (1) below the rotary ignition plate (503);
the combustion-supporting mechanism (6) comprises an air supply ring (601), the air supply ring (601) is fixedly installed at the top end of the combustion chamber (1), one side, located inside the combustion chamber (1), of the air supply ring (601) is connected with and penetrates through an air conveying pipe (602), one end, far away from the air supply ring (601), of the air conveying pipe (602) is connected with and penetrates through a diversion chamber (603), the diversion chamber (603) is fixedly installed on the inner bottom wall of the combustion chamber (1), an extension rod (604) is fixedly installed on the outer surface, located at the diversion chamber (603), of the central shaft (3), a sealing ring (605) is fixedly installed at one end, far away from the central shaft (3), of the extension rod (604), and the sealing ring (605) is attached to the diversion;
the sealing mechanism (7) comprises a rotary sealing plate (701), the rotary sealing plate (701) is fixedly installed on the outer surface of the central shaft (3), the rotary sealing plate (701), a fixed sealing plate (702) is fixedly installed below the rotary sealing plate (701) in the combustion chamber (1), and a penetrating groove (703) is formed in the surface of the fixed sealing plate (702).
2. The ignition device for blast furnace maintenance according to claim 1, wherein: the top end of the combustion chamber (1) is fixedly provided with a clamping ring (9), and the diameter of the clamping ring (9) is larger than that of the combustion chamber (1).
3. The ignition device for blast furnace maintenance according to claim 1, wherein: a support ring (606) is fixedly mounted in the combustion chamber (1) below the flow dividing chamber (603), and the inner side of the support ring (606) extends to the lower side of the sealing ring (605).
4. The ignition device for blast furnace maintenance according to claim 1, wherein: the through groove (703) is fan-shaped, the rotary seal plate (701) is fan-shaped, and the size of the rotary seal plate (701) is larger than that of the through groove (703).
5. The ignition device for blast furnace maintenance according to claim 1, wherein: the through groove (703), the flow distribution chamber (603), the fixed ignition plate (504) and the vent groove (202) are located on the same axis, and the number of the through groove (703), the flow distribution chamber (603), the fixed ignition plate (504) and the vent groove (202) is the same.
6. The ignition device for blast furnace maintenance according to claim 1, wherein: the arc length of the sealing ring (605) is larger than that of the shunting chamber (603), and the thickness of the sealing ring (605) is larger than that of the shunting chamber (603).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011469817.5A CN112626297A (en) | 2020-12-15 | 2020-12-15 | Ignition device for blast furnace maintenance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011469817.5A CN112626297A (en) | 2020-12-15 | 2020-12-15 | Ignition device for blast furnace maintenance |
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| Publication Number | Publication Date |
|---|---|
| CN112626297A true CN112626297A (en) | 2021-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011469817.5A Pending CN112626297A (en) | 2020-12-15 | 2020-12-15 | Ignition device for blast furnace maintenance |
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| CN (1) | CN112626297A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4443184A (en) * | 1980-03-21 | 1984-04-17 | Wistra Gmbh Thermoprozesstechnik | Process and apparatus for igniting a sinter mix |
| KR20040049976A (en) * | 2002-12-06 | 2004-06-14 | 주식회사 포스코 | An ignition apparatus for removing gas in blast furnace |
| CN201149253Y (en) * | 2007-12-03 | 2008-11-12 | 武汉摩林翰机电设备有限公司 | Electric ignition combustor of blast furnace top ignition device |
| CN201885224U (en) * | 2010-12-23 | 2011-06-29 | 上海嘉德环境能源科技有限公司 | Off-line burner for blast furnace gas ignition oven |
| CN209084769U (en) * | 2018-10-24 | 2019-07-09 | 北京奥林匹亚锅炉有限公司 | Gas burner and its burning spray head |
| CN211781058U (en) * | 2020-02-06 | 2020-10-27 | 吉林市富源化工厂 | Gasification type combustion head |
-
2020
- 2020-12-15 CN CN202011469817.5A patent/CN112626297A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4443184A (en) * | 1980-03-21 | 1984-04-17 | Wistra Gmbh Thermoprozesstechnik | Process and apparatus for igniting a sinter mix |
| KR20040049976A (en) * | 2002-12-06 | 2004-06-14 | 주식회사 포스코 | An ignition apparatus for removing gas in blast furnace |
| CN201149253Y (en) * | 2007-12-03 | 2008-11-12 | 武汉摩林翰机电设备有限公司 | Electric ignition combustor of blast furnace top ignition device |
| CN201885224U (en) * | 2010-12-23 | 2011-06-29 | 上海嘉德环境能源科技有限公司 | Off-line burner for blast furnace gas ignition oven |
| CN209084769U (en) * | 2018-10-24 | 2019-07-09 | 北京奥林匹亚锅炉有限公司 | Gas burner and its burning spray head |
| CN211781058U (en) * | 2020-02-06 | 2020-10-27 | 吉林市富源化工厂 | Gasification type combustion head |
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Application publication date: 20210409 |
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