CN104263867B - A kind of blast-furnace hot-air furnace structure - Google Patents

A kind of blast-furnace hot-air furnace structure Download PDF

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Publication number
CN104263867B
CN104263867B CN201410577548.2A CN201410577548A CN104263867B CN 104263867 B CN104263867 B CN 104263867B CN 201410577548 A CN201410577548 A CN 201410577548A CN 104263867 B CN104263867 B CN 104263867B
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hot
blast
arm
manifold
expansion pipe
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CN104263867A (en
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周昌银
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Magang Group Holding Co Ltd
Maanshan Iron and Steel Co Ltd
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Magang Group Holding Co Ltd
Maanshan Iron and Steel Co Ltd
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Abstract

The invention provides a kind of blast-furnace hot-air furnace structure, multiple hotblast stoves (2) of described blast-furnace hot-air furnace structure are connected with hot-blast main (1) respectively by hot blast manifold (3), hot blast manifold (3) is arranged on support plate (4), hot blast manifold (3) comprises arm I (5) and arm II (6), arm I (5) one end is connected with hot-blast main (1), arm II (6) one end is connected with hotblast stove (2), arm I (5) the other end is connected with the axial compensator (7) of hollow structure respectively with arm II (6) the other end, axial compensator (7) is set to the fitting structure that can stretch, blast-furnace hot-air furnace structure of the present invention, structure is simple, hotblast stove in hotblast stove structure can be overcome because expanding with heat and contract with cold to the damage of the resistance to material of hot blast manifold, extend hot blast manifold and hot-blast main work-ing life, thus effectively saved the manufacturing cost of hot blast manifold and hot-blast main.

Description

A kind of blast-furnace hot-air furnace structure
Technical field
The present invention relates to a kind of blast-furnace hot-air furnace structure.
Background technology
Because hotblast stove " grows tall " along with the rising of temperature in burning stove process, along with the decline of temperature " reduction " in air-supply process, therefore the hot blast manifold liner of resistance to material is subject to lateral shear and axial compression, causes its damage of internal lining of resistance to material to come off, and loop expansion pipe is rubescent to be burnt.Outside hot blast valve, the arm liner of resistance to material thermal expansion extruding Where Three Faults Meet modular tile, causes the resistance to material in Where Three Faults Meet top to damage.Prior art Problems existing: the hot blast manifold life-span is short.Be squeezed due to the liner of resistance to material and shear dual function, causing that FlexbleJoint is rubescent to be burnt, within general 2 years, namely needing to change hot blast manifold.Hot air duct Where Three Faults Meet (hot blast manifold and hot-blast main junction) position is easily damaged.
Summary of the invention
Technical problem to be solved by this invention is: for the deficiencies in the prior art, there is provided a kind of structure simple, hotblast stove in hotblast stove structure can be overcome because expanding with heat and contract with cold to the damage of the resistance to material of hot blast manifold, extend hot blast manifold work-ing life, thus effectively save the blast-furnace hot-air furnace structure of hot blast manifold manufacturing cost.
Solve above-described technical problem, the technical scheme that the present invention takes is:
The present invention is a kind of blast-furnace hot-air furnace structure, comprise hot-blast main, multiple hotblast stove, multiple hot blast manifold, multiple hotblast stove is connected with hot-blast main respectively by hot blast manifold, described hot blast manifold is arranged on support plate, hot blast manifold comprises arm I and arm II, arm I one end is connected with hot-blast main, arm II one end is connected with hotblast stove, arm I the other end is connected with the axial compensator of hollow structure respectively with arm II the other end, and axial compensator is set to the fitting structure that can stretch.
Described blast-furnace hot-air furnace structure also comprises the horizontal loop expansion pipe that can bend, horizontal loop expansion pipe is set to the fitting structure of hollow, horizontal loop expansion pipe one end is connected with arm I, the horizontal loop expansion pipe the other end is connected with axial compensator, arm II is exported with hotblast stove by a pipe flange and is connected, and described arm II is also provided with the hot blast switch-valve that can control hot blast manifold break-make.
Described axial compensator is connected with support plate by spring abutment near one end of horizontal loop expansion pipe, and arm II is connected with support plate by another spring abutment by a pipe flange.
Described hot blast manifold is connected with support plate by multiple bidirectional sliding support, each bidirectional sliding support is sleeved on hot-blast main respectively by lasso, described axial compensator is set to the flexible pipe structure being with multi-turn fold, and described horizontal loop expansion pipe is set to flexiplast tubular construction.
The direct rod shape pull bar that multiple tracks is arranged along hot-blast main's inwall is set in described hot-blast main, multiple pull bar links together, hot-blast main comprises multiple house steward's arm, between every two connected house steward's arms, an axial compensator II is set, hot-blast main is also provided with horizontal loop expansion pipe II, horizontal loop expansion pipe II is arranged between house steward's arm and an axial compensator II.
Adopt technical scheme of the present invention, following beneficial effect can be obtained:
Blast-furnace hot-air furnace structure of the present invention, by the hot blast manifold between hotblast stove and hot-blast main being arranged axial compensator and horizontal loop expansion pipe, when blast-furnace hot-air furnace structure in the course of the work, owing to expanding with heat and contract with cold, hotblast stove can expand or shrink, the setting of axial compensator and horizontal loop expansion pipe, the compression displacement of hot blast manifold axial compression displacement and vertical direction can be born, the setting of axial compensator, hotblast stove elongation in the horizontal direction or the destruction of shrinking the resistance to material of hot blast manifold can be avoided, the setting of horizontal loop expansion pipe, hotblast stove elongation in the vertical direction or the destruction of shrinking the resistance to material of hot blast manifold can be avoided, thus avoid the frequent breakage of hot blast manifold, extend hot blast manifold work-ing life, save hot blast manifold manufacturing cost.And axial compensator and horizontal loop expansion pipe are set on hot-blast main, the compression displacement of hot-blast main's axial compression displacement and vertical direction can be born equally, thus compensate hot-blast main in the horizontal direction with expansion or the contraction of vertical direction, thus avoid the frequent breakage of hot-blast main, effectively extend hot-blast main's work-ing life, save the manufacturing cost of hot-blast main.
Accompanying drawing explanation
Brief description is made to the content expressed by each accompanying drawing of this specification sheets and the mark in figure below:
Fig. 1 is the plan structure schematic diagram of blast-furnace hot-air furnace structure of the present invention;
Fig. 2 is the sectional structure schematic diagram in the A-A face of the blast-furnace hot-air furnace structure described in Fig. 1; ;
Accompanying drawing acceptance of the bid note is respectively: 1, hot-blast main; 2, hotblast stove; 3, hot blast manifold; 4, support plate; 5, arm I; 6, arm II; 7, axial compensator; 8, horizontal loop expansion pipe; 9, pipe flange is propped up; 10, hotblast stove outlet; 11, spring abutment; 12, bidirectional sliding support; 13, lasso; 14, hot blast switch-valve; 15, pull bar; 16, house steward's arm; 17, axial compensator II; 18, horizontal loop expansion pipe II.
Embodiment
Contrast accompanying drawing below, by the description to embodiment, the effect and principle of work etc. of the specific embodiment of the present invention as the mutual alignment between the shape of involved each component, structure, each several part and annexation, each several part are described in further detail:
As accompanying drawing 1, shown in accompanying drawing 2, the present invention is a kind of blast-furnace hot-air furnace structure, comprise hot-blast main 1, multiple hotblast stove 2, multiple hot blast manifold 3, multiple hotblast stove 2 is connected with hot-blast main 1 respectively by hot blast manifold 3, described hot blast manifold 3 is arranged on support plate 4, hot blast manifold 3 comprises arm I 5 and arm II 6, arm I 5 one end is connected with hot-blast main 1, arm II 6 one end is connected with hotblast stove 2, arm I 5 the other end is connected with the axial compensator 7 of hollow structure respectively with arm II 6 the other end, axial compensator 7 is set to the fitting structure that can stretch.By the hot blast manifold 3 between hotblast stove 2 and hot-blast main 1 arranges axial compensator 7, when blast-furnace hot-air furnace structure in the course of the work, owing to expanding with heat and contract with cold, hotblast stove meeting 2 expands or shrinks, the setting of the axial compensator 7 on hot blast manifold 3, hot blast manifold axial compression displacement can be born, the elongation in the horizontal direction avoiding hotblast stove or the destruction of shrinking the resistance to material of hot blast manifold, thus avoid the frequent breakage of hot blast manifold, extend hot blast manifold work-ing life, save pipe fitting cost.
Described blast-furnace hot-air furnace structure also comprises the horizontal loop expansion pipe 8 that can bend, horizontal loop expansion pipe 8 is set to the fitting structure of hollow, horizontal loop expansion pipe 8 one end is connected with arm I 5, horizontal loop expansion pipe 8 the other end is connected with axial compensator 7, arm II 6 exports 10 by a pipe flange 9 with hotblast stove and is connected, and described arm II 6 is also provided with the hot blast switch-valve 14 that can control hot blast manifold 3 break-make.The setting of horizontal loop expansion pipe 8, the compression displacement of hot blast manifold vertical direction can be born, avoid hotblast stove elongation in the vertical direction or the destruction of shrinking the resistance to material of hot blast manifold, thus avoid the frequent breakage of hot blast manifold, extend hot blast manifold work-ing life, save pipe fitting cost.And the setting of axial compensator, changing the hot blast switch-valve 14 of hotblast stove structure, axial compensator can drive arm II 6 to move axially, and is convenient to dismounting and the replacing of hot blast switch-valve 14.
Described axial compensator 7 is connected with support plate 4 by spring abutment 11 near one end of horizontal loop expansion pipe 8, and arm II 6 is connected with support plate 4 by another spring abutment 11 by a pipe flange 9.The spring abutment 11 that hot blast manifold 1 bottom is arranged, is the elastic support of its vertical direction, hot blast manifold is played to the effect of flexible support, can compensate hot blast manifold movement in the vertical direction equally, avoid the damage of hot blast manifold.
Described hot blast manifold 3 is connected with support plate 4 by multiple bidirectional sliding support 12, each bidirectional sliding support 12 is sleeved on hot-blast main 1 respectively by lasso 13, it is bascule between lasso and hot-blast main, therefore, when hot-blast main is expanded with heat and contract with cold and is elongated or shortened, can move left and right by relatively sliding bearing 12, like this, just can overcome hot-blast main's axial displacement, avoid the damage that hot-blast main is caused that is rigidly connected, axial compensator 7 is set to the flexible pipe structure being with multi-turn fold, such structure, effectively can increase the telescopic extensions of axial compensator, improve axial compensator performance, horizontal loop expansion pipe 8 is set to flexiplast tubular construction, such structure, effectively can increase the bending scope of horizontal loop expansion pipe, thus improve the performance of horizontal loop expansion pipe.
The direct rod shape pull bar 15 that multiple tracks is arranged along hot-blast main 1 inwall is set in described hot-blast main 1, pull bar 15 plays the effect supporting hot-blast main 1, hot-blast main 1 is avoided bending to occur or topples over, multiple pull bar 15 links together, hot-blast main 1 comprises multiple house steward's arm 16, between every two connected house steward's arms 16, an axial compensator II 17 is set, hot-blast main 1 is also provided with horizontal loop expansion pipe II 18, horizontal loop expansion pipe II 18 is arranged between house steward's arm 16 and an axial compensator II 17.Arranged by said structure, hot-blast main arranges axial compensator 7 and horizontal loop expansion pipe 8, the compression displacement of hot-blast main 1 axial compression displacement and vertical direction can be born, compensate hot-blast main 1 in the horizontal direction with expansion or the contraction of vertical direction, resistance to material extrudes and fail in shear because thermal expansion causes to overcome hot-blast main 1, avoid the frequent breakage of hot-blast main 1, effectively extend hot-blast main's work-ing life, save the manufacturing cost of hot-blast main.
Blast-furnace hot-air furnace structure of the present invention, by the hot blast manifold between hotblast stove and hot-blast main being arranged axial compensator and horizontal loop expansion pipe, when blast-furnace hot-air furnace structure in the course of the work, owing to expanding with heat and contract with cold, hotblast stove can expand or shrink, the setting of axial compensator and horizontal loop expansion pipe, the compression displacement of hot blast manifold axial compression displacement and vertical direction can be born, the setting of axial compensator can avoid hotblast stove elongation in the horizontal direction or the destruction of shrinking the resistance to material of hot blast manifold, the setting of horizontal loop expansion pipe can avoid hotblast stove the elongation disposing direction or the destruction of shrinking the resistance to material of hot blast manifold, thus avoid the frequent breakage of hot blast manifold, extend hot blast manifold work-ing life, save pipe fitting cost.And axial compensator and horizontal loop expansion pipe are set on hot-blast main, the compression displacement of hot-blast main's axial compression displacement and vertical direction can be born equally, thus avoid the frequent breakage of hot-blast main, extend hot-blast main's work-ing life, save pipe fitting cost.
Above by reference to the accompanying drawings to invention has been exemplary description; the concrete realization of obvious the present invention is not subject to the restrictions described above; as long as have employed the various improvement that method of the present invention is conceived and technical scheme is carried out; or design of the present invention and technical scheme directly applied to other occasions, all in protection scope of the present invention without to improve.

Claims (3)

1. a blast-furnace hot-air furnace structure, comprise hot-blast main (1), multiple hotblast stove (2), multiple hot blast manifold (3), multiple hotblast stove (2) is connected with hot-blast main (1) respectively by hot blast manifold (3), described hot blast manifold (3) is arranged on support plate (4), hot blast manifold (3) comprises arm I (5) and arm II (6), arm I (5) one end is connected with hot-blast main (1), arm II (6) one end is connected with hotblast stove (2), arm I (5) the other end is connected with the axial compensator (7) of hollow structure respectively with arm II (6) the other end, axial compensator (7) is set to the fitting structure that can stretch,
It is characterized in that: described blast-furnace hot-air furnace structure also comprises the horizontal loop expansion pipe (8) that can bend, horizontal loop expansion pipe (8) is set to the fitting structure of hollow, horizontal loop expansion pipe (8) one end is connected with arm I (5), horizontal loop expansion pipe (8) the other end is connected with axial compensator (7), arm II (6) exports (10) by a pipe flange (9) and is connected with hotblast stove, described arm II (6) is also provided with the hot blast switch-valve (14) that can control hot blast manifold (3) break-make;
Axial compensator (7) is connected with support plate (4) by spring abutment (11) near one end of horizontal loop expansion pipe (8), and arm II (6) is connected with support plate (4) by another spring abutment (11) by a pipe flange (9).
2. blast-furnace hot-air furnace structure according to claim 1, it is characterized in that: described hot blast manifold (3) is connected with support plate (4) by multiple bidirectional sliding support (12), each bidirectional sliding support (12) is sleeved on hot-blast main (1) respectively by lasso (13), described axial compensator (7) is set to the flexible pipe structure being with multi-turn fold, and described horizontal loop expansion pipe (8) is set to flexiplast tubular construction.
3. blast-furnace hot-air furnace structure according to claim 2, it is characterized in that: the direct rod shape pull bar (15) that multiple tracks is arranged along hot-blast main (1) inwall is set in described hot-blast main (1), multiple pull bar (15) links together, hot-blast main (1) comprises multiple house steward's arm (16), between every two connected house steward's arms (16), an axial compensator II (17) is set, hot-blast main (1) is also provided with horizontal loop expansion pipe II (18), horizontal loop expansion pipe II (18) is arranged between house steward's arm (16) and an axial compensator II (17).
CN201410577548.2A 2014-10-25 2014-10-25 A kind of blast-furnace hot-air furnace structure Active CN104263867B (en)

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106086274B (en) * 2016-08-24 2017-11-14 安徽马钢重型机械制造有限公司 A kind of hot air furnace hot air pipeline stabilization system
CN106119453B (en) * 2016-08-24 2017-11-28 安徽马钢重型机械制造有限公司 A kind of single-column type blast funnace hot blast stove hot-blast outlet answers apparatus for adjusting force and its adjusting method
CN106337100A (en) * 2016-10-31 2017-01-18 马鞍山钢铁股份有限公司 Hot air pipeline system with self compensation function

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2755101Y (en) * 2004-02-23 2006-02-01 山东省冶金设计院 Hot air pipeline compensating device for main pipe and periphery pipes at different hights
CN202322896U (en) * 2011-11-22 2012-07-11 中冶赛迪工程技术股份有限公司 Hot blast pipe
CN103966378A (en) * 2014-05-24 2014-08-06 北京首钢国际工程技术有限公司 Triangular flexible large pull rod device with hot air pipelines

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2755101Y (en) * 2004-02-23 2006-02-01 山东省冶金设计院 Hot air pipeline compensating device for main pipe and periphery pipes at different hights
CN202322896U (en) * 2011-11-22 2012-07-11 中冶赛迪工程技术股份有限公司 Hot blast pipe
CN103966378A (en) * 2014-05-24 2014-08-06 北京首钢国际工程技术有限公司 Triangular flexible large pull rod device with hot air pipelines

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