CN106676218B - A kind of blast furnace single-column type hot air furnace hot air piping displacement control system - Google Patents

A kind of blast furnace single-column type hot air furnace hot air piping displacement control system Download PDF

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Publication number
CN106676218B
CN106676218B CN201610715697.XA CN201610715697A CN106676218B CN 106676218 B CN106676218 B CN 106676218B CN 201610715697 A CN201610715697 A CN 201610715697A CN 106676218 B CN106676218 B CN 106676218B
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China
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blast
hot
furnace
hot air
column type
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CN201610715697.XA
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Chinese (zh)
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CN106676218A (en
Inventor
廖海欧
严华
吴芳敏
徐兆春
张有飞
高安阳
潘龙博
张胜利
张鹏
王成伟
娄堆钻
程采金
王徐鹏
翟永辉
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安徽马钢重型机械制造有限公司
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Publication of CN106676218A publication Critical patent/CN106676218A/en
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    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21BMANUFACTURE OF IRON OR STEEL
    • C21B9/00Stoves for heating the blast in blast furnaces
    • C21B9/10Other details, e.g. blast mains

Abstract

The invention discloses a kind of blast furnace single-column type hot air furnace hot air piping displacement control system, belong to blast-furnace hot-air systems technology field.The present invention includes 4 blast funnace hot blast stove units, each blast funnace hot blast stove unit includes blast funnace hot blast stove, hot-blast main and the hot blast manifold that blast funnace hot blast stove, hot-blast main link together, and it is secured together by box binding structure, box binding structure includes anchor ear, semi-ring shroud ring and big pull rod, wherein:Blast funnace hot blast stove is next by semi-ring shroud ring ring shroud ring, is connected by the square flange of semi-ring shroud ring tail end with big pull rod;Hot-blast main is connected after being encircled by anchor ear with big pull rod by square flange;In the both sides of hot blast manifold, it is fixedly connected respectively by lower link bar with big pull rod;Hot-blast main and hot blast manifold bottom are equipped with roller bearing, and hot-blast main top has been axially fixed transverse bar.The present invention can dissolve any stress variation coordinated type of whole system, and box binding structure, transverse bar and roller bearing three reach the effect of synergistic effect.

Description

A kind of blast furnace single-column type hot air furnace hot air piping displacement control system

Technical field

The invention belongs to blast-furnace hot-air systems technology field, more particularly to a kind of blast furnace single-column type hot air furnace hot air pipeline position Move control system.

Background technology

In the developing history of blast furnace technology, the successful application of blast funnace hot blast stove undoubtedly has special status.It is high Stove uses hot-air smelting to save the limited metallurgical coke of reserves, reducing energy consumption, raising furnace processor, reduction steel cost side Face plays important function;Also improve the utilization rate of the energy at the same time, reduce CO2Discharge, have to environmental protection important And active influence.Therefore temperature, the pressure for constantly improving hot wind are the Main ways of blast funnace hot blast stove technological progress.With Technological progress, hot blast temperature is via the initial 149 DEG C levels for developing into 1300 DEG C of highest, the highest temperature in blast funnace hot blast stove stove Degree has reached 1450 DEG C, furnace pressure highest 0.5MPa.How conveying enormous amount, the heat of ultra-high temperature and pressure of safety Wind, is an important step of blast funnace hot blast stove technology.If the problem of not handling hot air duct well, holds in process of production Easily there is pipe overheat, burn red or even explosion serious accident, cause the tragedy of great casualties.There is the one of above accident A reason is exactly that the design of hot air duct pull rod is unreasonable, it is impossible to effectively solve expanded by heating, the influence that blind flange force is brought, so that Cause fatigue of steel structures deformation, accident occurs.

4 blast funnace hot blast stoves of large blast furnace are typically single-column type arrangement, and hot-blast main is existing in the alternately work of air-supply 4 stoves for having technology are often fought separately, it is impossible to the change of unified reply stress, when some blast funnace hot blast stove stress variation is excessive When, so as to cause to misplace between some blast funnace hot blast stove and hot air duct, if when displacement up to 20~30mm of box hat is (existing All use 4~Tiebar structure form) after, often cause compensator failure, resistance to material to come off, manifold burn-through serious accidents.

Through retrieval, Chinese patent, application number:201410225552.2 date of publication:2014.08.06 disclose a kind of heat The flexible big pull rod device of wind pipeline triangle, belongs to blast furnace top ignition blast funnace hot blast stove technical field.Including:Hot-blast main, heat Wind branch pipe, hot blast manifold compensator, hot-blast valve, blast funnace hot blast stove furnace shell.Blast funnace hot blast stove is set on blast funnace hot blast stove furnace shell Furnace shell reinforcing ring, sets big drag link bearing on hot air duct, then in the junctions position that hot blast manifold is connected with hot-blast main Blast funnace hot blast stove furnace shell reinforcing ring and flexible big drag link bearing are connected into using the two groups of flexibility being triangularly arranged big pull rods One, connection mode is using welding or is bolted.For convenience of connection, connecting plate can be set.The patent advantage is that it is possible to Effectively absorb blast funnace hot blast stove furnace shell to go up, reduce the stress of shell and furnace shell, improve the security of blast funnace hot blast stove and pipeline, Especially suitable for the top ignition blast funnace hot blast stove that hot-blast outlet is higher, furnace shell rise amount is larger.But the patent there is not stress variation Have method quantization, the no specific aim of the adjusting for stress, can only rule of thumb adjusting yoke pulling force, if adjusting not enough or adjusting Section is excessive, and the connection or easy presentation for blast funnace hot blast stove and pipeline move and produce accident risk.

The content of the invention

1. technical problems to be solved by the inivention

Produced for single-column type blast funnace hot blast stove existing in the prior art and hot blast pipe since stress variation causes displacement Raw accident risk, 4 blast funnace hot blast stoves are interfered with each other the problem of cannot unifying reply stress variation, and the present invention provides a kind of high Stove single-column type hot air furnace hot air piping displacement control system.It by box binding structure and transverse bar by 4 blast-furnace hot-air lists Member is bound together, and when making stress variation by being laid with roller bearing, system integral displacement, reaches the mesh for eliminating stress variation 's.

2. technical solution

To reach above-mentioned purpose, technical solution provided by the invention is:

A kind of blast furnace single-column type hot air furnace hot air piping displacement control system, including 4 blast funnace hot blast stove units, Mei Gegao Stove hot-blast stove unit includes blast funnace hot blast stove, hot-blast main and the hot wind branch that blast funnace hot blast stove, hot-blast main link together Pipe, and be secured together by box binding structure, the box binding structure is drawn greatly including anchor ear, semi-ring shroud ring and 2 Bar, wherein:The blast funnace hot blast stove is next by semi-ring shroud ring ring shroud ring, square flange and big pull rod by semi-ring shroud ring tail end Connection;The hot-blast main is connected after being encircled by anchor ear with big pull rod by square flange;In the both sides of hot blast manifold, lead to respectively Cross lower link bar to be fixedly connected with big pull rod, big pull rod and lower link bar are in vertical state;The hot-blast main and hot blast manifold bottom Roller bearing is also equipped with, hot-blast main top is further fixed on transverse bar vertically, and transverse bar connects all anchor ears.Each blast funnace hot blast stove After unit is fixed together by the box binding structure that the big pull rod of anchor ear, semi-ring shroud ring and 2 forms, then by transverse bar by 4 A blast-furnace hot-air unit is bound together, and hot-blast main and hot blast manifold bottom are also equipped with roller bearing, system integral displacement, In this way, any stress variation coordinated type of whole system is dissolved, box binding structure, transverse bar and roller bearing three reach collaboration and make Effect.

Preferably, the big pull rod is formed by fixedly connecting by H profile steel;H profile steel junction in every big pull rod is provided with Stress detection device and stress adjusting mechanism, the big pull rod that H profile steel is formed by fixedly connecting form the binding structure of box stabilization, protect Demonstrate,proved the stability of stress detection device Data Detection, data acquisition after analysis, then by stress adjusting mechanism in H profile steel Tie point is adjusted, and improves the stability of box binding structure in turn, both act synergistically, and can ensure whole single-column type The stability of blast funnace hot blast stove work, largely avoids since the complexity of stress variation causes pipeline and blast-furnace hot-air The dislocation of stove connection.

Preferably, the stress detection device includes top board, lower platen, pressure head and pressure sensor;The top board It is opposite with the working face of lower platen;The working face that the pressure sensor bottom face is close to lower platen is set, and induction end pushes against pressure After the bottom face of head, the upper surface of pressure head and the working face of top board are in close contact, compression is bolted;Pressure sensor By high furnace control system outside wireless or limited connection, after the detection for single-column type blast funnace hot blast stove hot-blast outlet stress, Solve the problems, such as how to quantify stress variation, lay a good foundation for the adjusting of stress;The stress adjusting mechanism bag Include to connect the backing plate between the square flange of two H profile steels, adjusted with backing plate, adjusted simple, it is only necessary to prepare different size Backing plate adapter type use, the thin backing plate for being also ready for specification of the same race stacks use;According to the data of pressure sensor into Row is adjusted, and has accomplished the quantization configuration adjusted, obtains box-shaped binding structure, stress detection device and backing plate three synergistic effect Effect, further improves the stability of single-column type blast funnace hot blast stove work.

Preferably, the stress adjusting mechanism includes jack, upper plate, lower roof plate and support plate;The upper plate and Lower roof plate is respectively welded in 2 sections of H profile steels for being fixed on interconnection, the both sides up and down of flange;When needing to adjust pressure, spiral shell is unclamped Bolt, jack base is placed on lower roof plate, and jack ejection end holds out against upper plate, after the flange of open-top interconnection, flange Between be inserted into backing plate, coordinate upper lower roof plate be used as the top opening that Poland connects by jack, it is easy to operate, then coordinate difference The backing plate of thickness specification, good basis is laid for the smooth adjustment of stress.

Preferably, locating slot is provided among the lower platen on radial line, what is set on locating slot and flange centre radial line determines Position block is equipped with, and locating slot and locating piece are equipped with, and improves the accuracy of stress variation data acquisition and each detection points According to the uniformity of collection;The flange connects the stress detection device of two H profile steels and fixed H profile steel both sides at the same time.

Preferably, the stress detection device is additionally included in the pad set between lower platen and pressure sensor bottom face Block, can adjust plate spacing up and down as needed, improve the versatility of the present apparatus.

Preferably, in each blast funnace hot blast stove unit, stress detection device amounts to 8 sets, and 4 are set on each big pull rod Set, is divided into 2 groups, is symmetrical arranged in H profile steel both sides;Every group of stress detection device is set in the upper and lower symmetrical expression of flange, and is passed through 2 sets of stress detection devices are fixed together by bolt through 2 top boards, 2 lower platens and 2 flanges, 4 sets of stress inspections Survey device to be symmetrical arranged up and down, act synergistically, the bad shadow that horizontal fluctuation produces in stress can be avoided as far as possible Ring, 4 data can determine the variation of stress at this, and 4 arranged for single-column type by the means such as analyzing, be averaged The variation of stress of whole system is found under blast funnace hot blast stove different working condition and finally adjusts scheme and is laid well Data basis.

Preferably, the bolt is stud, can formula symmetrical above and below fix, quantity is even number, symmetrical expression use, protect The symmetrical of whole detection working face is held, is further ensured that the accuracy of data acquisition.

Preferably, the flange is long oval tabular, and two sections of H profile steels are fixedly connected by middle part with symmetrical two rows of bolts, Two is in symmetrical semicircle shape, symmetrical fixed with bolt after being clamped respectively by symmetrical 2 sets of stress detection devices, long oval Tabular flange, both ends are symmetrical structure, symmetrical can fix and connect stress detection device, further improve data acquisition Accuracy.

Preferably, Yu Jin Li≤20 ton of the pressure sensor, meet the high intensity detection of stress variation;The upper pressure The flatness of the working face of plate, lower platen and pressure head within 0.5mm, as far as possible eliminate pressure sensor gathered data interference because Element, further improves the accuracy of data;Hot-blast main bottom at least symmetrical expression is covered with 3 rollings in each blast funnace hot blast stove unit Axis, hot blast manifold bottom are at least covered with 1 roller bearing, further ensure the uniformity of whole system reply stress variation.

3. beneficial effect

Using technical solution provided by the invention, compared with prior art, have the advantages that:

(1) a kind of blast furnace single-column type hot air furnace hot air piping displacement control system of the invention, each blast funnace hot blast stove list After member is fixed together by the box binding structure that the big pull rod of anchor ear, semi-ring shroud ring and 2 forms, then by transverse bar by 4 Blast-furnace hot-air unit is bound together, and hot-blast main and hot blast manifold bottom are also equipped with roller bearing, system integral displacement, this Sample, any stress variation coordinated type of whole system is dissolved, and box binding structure, transverse bar and roller bearing three reach synergistic effect Effect;

(2) a kind of blast furnace single-column type hot air furnace hot air piping displacement control system of the invention, H profile steel are formed by fixedly connecting Big pull rod form the binding structure of box stabilization, ensure that the stability of stress detection device Data Detection, data acquisition warp Cross after analyzing, then be adjusted by stress adjusting mechanism in H profile steel tie point, improve the stabilization of box binding structure in turn Property, both act synergistically, and can ensure the stability of whole single-column type blast funnace hot blast stove work, largely avoid due to The complexity of stress variation causes the dislocation that pipeline is connected with blast funnace hot blast stove;

(3) a kind of blast furnace single-column type hot air furnace hot air piping displacement control system of the invention, stress detection device pass through Pressure head and pressure sensor, the inspection for single-column type blast funnace hot blast stove hot-blast outlet stress are set between top board and lower platen Survey, solve the problems, such as how to quantify stress variation, lay a good foundation for the adjusting of stress;Adjusted, adjusted with backing plate Simply, it is only necessary to prepare the backing plate adapter type use of different size, the thin backing plate for being also ready for specification of the same race stacks use; It is adjusted according to the data of pressure sensor, has accomplished the quantization configuration adjusted, obtains box-shaped binding structure, stress mornitoring dress The effect with backing plate three synergistic effect is put, further improves the stability of single-column type blast funnace hot blast stove work;

(4) a kind of blast furnace single-column type hot air furnace hot air piping displacement control system of the invention, is matched somebody with somebody by jack and closed Top opening of the lower roof plate as Poland's connection, it is easy to operate, then coordinate the backing plate of different-thickness specification, it is the smooth tune of stress It is whole to lay good basis;Locating slot and locating piece are equipped with, and improve the accuracy of stress variation data acquisition and each test point The uniformity of data acquisition;

(5) a kind of blast furnace single-column type hot air furnace hot air piping displacement control system of the invention, the setting of cushion block, Ke Yigen According to needing to adjust plate spacing up and down, the versatility of the present apparatus is improved;

(6) a kind of blast furnace single-column type hot air furnace hot air piping displacement control system of the invention, on 4 sets of stress detection devices Under be symmetrical set, act synergistically, the harmful effect that horizontal fluctuation can be avoided in stress to produce as far as possible, 4 numbers According to can determine the variation of stress at this by the means such as analyzing, being averaged, and it is 4 blast-furnace hot-airs of single-column type arrangement The variation of stress of whole system is found under stove different working condition and finally adjusts scheme and lays good data base Plinth;

(7) a kind of blast furnace single-column type hot air furnace hot air piping displacement control system of the invention, bolt are stud, energy Enough formulas symmetrical above and below are fixed;Quantity is even number, and symmetrical expression uses, and keeps the symmetrical of whole detection working face, is further ensured that number According to the accuracy of collection;

(8) a kind of blast furnace single-column type hot air furnace hot air piping displacement control system of the invention, long ellipse tabular flange, two Hold as symmetrical structure, can symmetrical fixed and connection stress detection device, further improve the accuracy of data acquisition;

(9) a kind of blast furnace single-column type hot air furnace hot air piping displacement control system of the invention, the pretension of pressure sensor Li≤20 ton, meet the high intensity detection of stress variation;The flatness of working face eliminates pressure sensing as far as possible within 0.5mm The disturbing factor of device gathered data, further improves the accuracy of data;

(10) a kind of blast furnace single-column type hot air furnace hot air piping displacement control system of the invention, passes through the box-shaped of H profile steel Bind structure to bind blast funnace hot blast stove and hot-blast main, then bound together 4 blast-furnace hot-air units by transverse bar, structure Stablize, and cooperate with the symmetrical expression of stress detection device to install up and down, a stabilization kept in data acquisition, one Data acquisition is carried out, the influence of hot-blast outlet tangential force is avoided, ensure that whole single-column type blast-furnace hot-air furnace system hot wind goes out The accuracy that mouth stress variation quantifies;The data of 32 pressure sensors, with reference to the temperature data Synchronization Analysis of hot-air mouth, and then Box-shaped binding structure is adjusted, 4 single-column type blast funnace hot blast stoves, hot-blast main and hot blast manifold is in relative balance state, makes Hot-blast main is obtained in the alternately work of air-supply, the displacement of its box hat is controlled in 5~8mm, and guarantee compensator does not fail, resistance to material Do not fall off, manifold is not burnt, big or middle until blast furnace is repaiied.

Brief description of the drawings

Fig. 1 is the blast furnace single-column type hot air furnace hot air piping displacement control system architecture schematic diagram of the present invention;

Fig. 2 is structure diagram after the blast funnace hot blast stove unit amplification in the present invention;

Fig. 3 is structure diagram after the stress detection device amplification in the present invention;

Fig. 4 is top view after the flange of the connection H profile steel and stress detection device in the present invention amplifies;

Fig. 5 is that the H profile steel that upper plate is fixed in the embodiment of the present invention 6 amplifies lateral side view;

Fig. 6 is that the H profile steel that lower roof plate is fixed in the embodiment of the present invention 6 amplifies lateral side view;

Fig. 7 is that the anchor ear in the present invention amplifies lateral side view;

Fig. 8 is that the semi-ring shroud ring in the present invention amplifies lateral side view;

Fig. 9 is the structure diagram for being inserted into backing plate in the embodiment of the present invention 7 between square flange.

Label declaration in schematic diagram:1st, blast funnace hot blast stove;2nd, anchor ear;3rd, stress detection device;4th, hot blast manifold;5th, it is hot Wind manifold;6th, flange;7th, bellows;8th, big pull rod;9th, semi-ring shroud ring;10th, jack;11st, square flange;12nd, backing plate;17、 Roller bearing;31st, top board;32nd, lower platen;33rd, pressure head;34th, pressure sensor;35th, bolt;36th, locating piece;39th, cushion block;42、 Lower link bar;43rd, thermometer hole;51st, transverse bar;81st, upper plate;82nd, lower roof plate;83rd, support plate;100th, blast funnace hot blast stove unit; 321st, locating slot;821st, position-limit mechanism.

Embodiment

To further appreciate that present disclosure, with reference to attached drawing, the present invention is described in detail.

Embodiment 1

A kind of blast furnace single-column type hot air furnace hot air piping displacement control system of the present embodiment, as shown in Figure 1, including 4 Blast funnace hot blast stove unit 100, each blast funnace hot blast stove unit 100 include blast funnace hot blast stove 1, hot-blast main 5 and by blast-furnace hot-airs The hot blast manifold 4 that stove 1, hot-blast main 5 link together, and be secured together by box binding structure, it is described box to tie up Determining structure includes anchor ear 2, semi-ring shroud ring 9 and 2 big pull rod 8, wherein:As shown in figure 8, the blast funnace hot blast stove 1 is by semi-ring bag Bind round that 9 ring shroud rings are next, connected by the square flange 11 and big pull rod 8 of 9 tail end of semi-ring shroud ring;As shown in fig. 7, the hot wind is total Connected after pipe 5 is encircled by anchor ear 2 with big pull rod 8 by square flange 11;In the both sides of hot blast manifold 4, pass through lower link bar respectively 42 are fixedly connected with big pull rod 8, and big pull rod 8 and lower link bar 42 are in vertical state;4 bottom of the hot-blast main 5 and hot blast manifold Roller bearing 17 is also equipped with, 5 top of hot-blast main is further fixed on transverse bar 51 vertically, and transverse bar 51 connects all anchor ears 2.It is each high After stove hot-blast stove unit is fixed together by the box binding structure that the big pull rod of anchor ear, semi-ring shroud ring and 2 forms, then pass through Transverse bar binds together 4 blast-furnace hot-air units, and hot-blast main and hot blast manifold bottom are also equipped with roller bearing, and system is overall Formula displacement, in this way, any stress variation coordinated type of whole system is dissolved, box binding structure, transverse bar and roller bearing three reach To the effect of synergistic effect.The both sides of lower link bar 42, set bellows 7 as compensation and 4 unicom of hot blast manifold.

Embodiment 2

A kind of blast furnace single-column type hot air furnace hot air piping displacement control system of the present embodiment, concrete structure is substantially the same as implementation Example 1, thes improvement is that:As shown in Fig. 2, the big pull rod 8 is formed by fixedly connecting by H profile steel, what H profile steel was formed by fixedly connecting The binding structure for the box stabilization that big pull rod is formed, ensure that the stability of stress detection device Data Detection, data acquisition warp Cross after analyzing, then be adjusted by stress adjusting mechanism in H profile steel tie point, improve the stabilization of box binding structure in turn Property, both act synergistically, and can ensure the stability of whole system, largely avoid the complexity due to stress variation The dislocation for causing pipeline to be connected with blast funnace hot blast stove;H profile steel junction in every big pull rod 8 is provided with stress detection device 3 With stress adjusting mechanism.As shown in figure 3, the stress detection device 3 includes top board 31, lower platen 32, pressure head 33 and pressure Sensor 34;The top board 31 is opposite with the working face of lower platen 32;34 bottom face of pressure sensor is close to lower platen 32 working face is set, and induction end pushes against the bottom face of pressure head 33, and the upper surface of pressure head 33 and the working face of top board 31 are close After contact, it is fixed and clamped by bolt 35;Pressure sensor 34 is used for by high furnace control system outside wireless or limited connection After the detection of single-column type blast funnace hot blast stove hot-blast outlet stress, solve the problems, such as how to quantify stress variation, be stress Adjusting is laid a good foundation;The stress adjusting mechanism includes the backing plate between the square flange 11 to connect two H profile steels 12, adjusted, adjusted simple, it is only necessary to prepare the backing plate adapter type use of different size, be also ready for rule of the same race with backing plate The thin backing plate of lattice stacks use;It is adjusted according to the data of pressure sensor, has accomplished the quantization configuration adjusted, obtained box-shaped The effect of structure, stress detection device and backing plate three synergistic effect is bound, further improves the work of single-column type blast funnace hot blast stove Stability.

Embodiment 3

A kind of blast furnace single-column type hot air furnace hot air piping displacement control system of the present embodiment, concrete structure with embodiment 2, The improvement is that:As shown in Fig. 3,5,6, the stress adjusting mechanism includes jack 10, upper plate 81, lower roof plate 82 and branch Fagging 83;The upper plate 81 and lower roof plate 82 are respectively welded in 2 sections of H profile steels for being fixed on interconnection, and up and down the two of flange 6 Side;When needing to adjust pressure, bolt 35 is unclamped, 10 base of jack is placed on lower roof plate 82, jack 10 ejects end and holds out against Upper plate 81, after the flange 6 of open-top interconnection, is inserted into backing plate 12 between flange 6, coordinate upper lower roof plate to be used as by jack The top opening of Polish connection, it is easy to operate, then coordinate the backing plate of different-thickness specification, laid well for the smooth adjustment of stress Basis.

Embodiment 4

A kind of blast furnace single-column type hot air furnace hot air piping displacement control system of the present embodiment, concrete structure with embodiment 3, The improvement is that:Locating slot 321 is provided with the 32 middle radial line of lower platen, is set on 6 middle radial line of locating slot 321 and flange The locating piece 36 put is equipped with, and locating slot and locating piece are equipped with, and improves the accuracy of stress variation data acquisition and each The uniformity of test point data acquisition;The flange 6 connects the stress detection device of two H profile steels and fixed H profile steel both sides at the same time 3.The cushion block 39 set between 34 bottom face of lower platen 32 and pressure sensor is additionally included in, cushion block 39 can select a variety of rule Lattice, can adjust plate spacing up and down as needed, improve the versatility of the present apparatus.

Embodiment 5

A kind of blast furnace single-column type hot air furnace hot air piping displacement control system of the present embodiment, concrete structure is substantially the same as implementation Example 4, thes improvement is that:In each blast funnace hot blast stove unit 100, stress detection device 3 amounts to 8 sets, each on big pull rod 8 4 sets are set, is divided into 21 group, is symmetrical arranged in H profile steel both sides;Upper and lower symmetrical expression of the every group of stress detection device 3 in flange 6 Set, and fixed 2 sets of stress detection devices 3 through 2 top boards, 31,2 lower platens 32 and 2 flanges 6 by bolt 35 Link together, 4 sets of stress detection devices are symmetrical arranged up and down, synergistic effect, can be avoided as far as possible horizontal in stress The harmful effect produced to fluctuation, 4 data can determine the stress variation rule at this by the means such as analyzing, be averaged Rule, and to find the variation of stress and most of whole system under 4 blast funnace hot blast stove different working conditions of single-column type arrangement Scheme is adjusted eventually lays good data basis.The bolt 35 is stud, can formula symmetrical above and below fix, quantity For even number, symmetrical expression uses, and keeps the symmetrical of whole detection working face, is further ensured that the accuracy of data acquisition.

A kind of blast funnace hot blast stove hot air duct systems stabilisation of the present embodiment, structure is bound by height by the box-shaped of H profile steel Stove hot-blast stove 1 and hot-blast main 5 bind, then are bound together 4 blast-furnace hot-air units 100 by transverse bar 51, stable structure, And cooperate with the symmetrical expression of stress detection device 3 to install up and down, and a stabilization kept in data acquisition, a progress Data acquisition, avoids the influence of hot-blast outlet tangential force, ensure that whole single-column type blast-furnace hot-air furnace system hot-blast outlet should The accuracy that power change quantifies;The data of 32 pressure sensors 34, the temperature number gathered with reference to thermometer hole near hot-air mouth 43 According to Synchronization Analysis, and then box-shaped binding structure is adjusted, made at 4 single-column type blast funnace hot blast stoves 1, hot-blast main 5 and hot blast manifold 4 In relative balance state so that hot-blast main 5 is in the alternately work of air-supply, and the displacement control of its box hat is in 5~8mm, guarantor Compensator does not fail card, resistance to material is not fallen off, manifold is not burnt, and big or middle until blast furnace is repaiied.

Embodiment 6

A kind of blast furnace single-column type hot air furnace hot air piping displacement control system of the present embodiment, concrete structure is substantially the same as implementation Example 4, thes improvement is that:As shown in figure 4, the flange 6 is long oval tabular, symmetrical two rows of bolts are used by two sections of H in middle part Shaped steel is fixedly connected, and two is in symmetrical semicircle shape, right with bolt 35 after being clamped respectively by symmetrical 2 sets of stress detection devices 3 Title formula is fixed, and long ellipse tabular flange, both ends are symmetrical structure, symmetrical can fix and connect stress detection device, into One step improves the accuracy of data acquisition.Yu Jin Li≤20 ton of the pressure sensor 34, meet the high intensity of stress variation Detection;The flatness of the working face of the top board 31, lower platen 32 and pressure head 33 eliminates pressure and passes as far as possible within 0.5mm The disturbing factor of sensor gathered data, further improves the accuracy of data.Hot-blast main in each blast funnace hot blast stove unit 100 5 bottoms at least symmetrical expression is covered with 3 roller bearings 17, and hot blast manifold bottom is at least covered with 1 roller bearing 17, in whole heat in the present embodiment The total bottom of the tube of wind is equipped with 14 roller bearings 17, the convenient monoblock type synergistic effect of the displacement that whole system produces is dissolved The change of stress.

Embodiment 7

A kind of blast funnace hot blast stove hot air duct systems stabilisation of the present embodiment, basic structure and step are improved with embodiment 7 Part is:Position-limit mechanism 821 is fixedly installed on lower roof plate 82, improves stability during jack effect, avoids jack from making Influenced to adjust with shift.During adjusting, as shown in figure 9, stress detection device can not also connected, 2 sections of H profile steels are only connected 2 square flanges 11 between insertion backing plate 12 adjust.As shown in figure 8, semi-ring shroud ring 9 is Q345B type shape of the mouth as one speaks steel materials, it is internal Branch muscle 91 is set every 30 ° of radians, improves the stability of whole box structure.

Schematically the present invention and embodiments thereof are described above, this describes no restricted, institute in attached drawing What is shown is also one of embodiments of the present invention, and actual structure is not limited thereto.So if common skill of this area Art personnel are enlightened by it, without departing from the spirit of the invention, are not inventively designed and the technical solution Similar frame mode and embodiment, are within the scope of protection of the invention.

Claims (9)

1. a kind of blast furnace single-column type hot air furnace hot air piping displacement control system, including 4 blast funnace hot blast stove units(100), often A blast funnace hot blast stove unit(100)Including blast funnace hot blast stove(1), hot-blast main(5)With by blast funnace hot blast stove(1), hot-blast main (5)The hot blast manifold to link together(4), and be secured together by box binding structure, it is characterised in that it is described box Binding structure includes anchor ear(2), semi-ring shroud ring(9)With 2 big pull rods(8), wherein:
The blast funnace hot blast stove(1)By semi-ring shroud ring(9)Ring shroud ring is next, passes through semi-ring shroud ring(9)The square flange of tail end (11)With big pull rod(8)Connection;The hot-blast main(5)By anchor ear(2)Encircle rear and big pull rod(8)Pass through square flange(11) Connection;In hot blast manifold(4)Both sides, pass through lower link bar respectively(42)With big pull rod(8)It is fixedly connected, big pull rod(8)With it is small Pull rod(42)In vertical state;
The hot-blast main(5)And hot blast manifold(4)Bottom is also equipped with roller bearing(17), hot-blast main(5)Top is gone back vertically It is fixed with transverse bar(51), transverse bar(51)By all anchor ears(2)Connection;
The big pull rod(8)It is formed by fixedly connecting by H profile steel;Every big pull rod(8)In H profile steel junction be provided with stress inspection Survey device(3)With stress adjusting mechanism;The semi-ring shroud ring(9)Upper setting branch muscle(91).
2. blast furnace single-column type hot air furnace hot air piping displacement control system according to claim 1, it is characterised in that:It is described Stress detection device(3)Including top board(31), lower platen(32), pressure head(33)And pressure sensor(34);The top board (31)And lower platen(32)Working face it is opposite;The pressure sensor(34)Bottom face is close to lower platen(32)Working face set Put, induction end pushes against pressure head(33)Bottom face, pressure head(33)Upper surface and top board(31)Working face be in close contact after, Pass through bolt(35)It is fixed and clamped;Pressure sensor(34)By wirelessly or non-wirelessly connecting exterior high furnace control system;It is described to answer Power adjusting mechanism is included to connect the square flange of two H profile steels(11)Between backing plate(12).
3. blast furnace single-column type hot air furnace hot air piping displacement control system according to claim 2, it is characterised in that:It is described to answer Power adjusting mechanism includes jack(10), upper plate(81), lower roof plate(82)And support plate(83);The upper plate(81)With under Top plate(82)It is respectively welded in 2 sections of H profile steels for being fixed on interconnection, flange(6)Both sides up and down;When needing to adjust pressure, Unclamp bolt(35), by jack(10)Base is placed in lower roof plate(82)On, jack(10)Ejection end holds out against upper plate(81), The flange of open-top interconnection(6)Afterwards, flange(6)Between be inserted into backing plate(12).
4. blast furnace single-column type hot air furnace hot air piping displacement control system according to claim 2, it is characterised in that:It is described Lower platen(32)Locating slot is provided with middle radial line(321), locating slot(321)And flange(6)The positioning set on middle radial line Block(36)It is equipped with;The flange(6)The stress detection device of two H profile steels and fixed H profile steel both sides is connected at the same time(3).
5. blast furnace single-column type hot air furnace hot air piping displacement control system according to claim 4, it is characterised in that:It is described Stress detection device(3)It is additionally included in lower platen(32)And pressure sensor(34)The cushion block set between bottom face(39).
6. blast furnace single-column type hot air furnace hot air piping displacement control system according to claim 5, it is characterised in that:Every A blast funnace hot blast stove unit(100)In, stress detection device(3)8 sets altogether, each big pull rod(8)It is upper to set 4 sets, it is divided into 2 1 group, it is symmetrical arranged in H profile steel both sides;Every group of stress detection device(3)In flange(6)It is upper and lower it is symmetrical set, and pass through Bolt(35)Through 2 top boards(31), 2 lower platens(32)With 2 flanges(6)By 2 sets of stress detection devices(3)It is fixed to connect It is connected together.
7. blast furnace single-column type hot air furnace hot air piping displacement control system according to claim 6, it is characterised in that:It is described Bolt(35)For stud, quantity is even number, and symmetrical expression uses.
8. blast furnace single-column type hot air furnace hot air piping displacement control system according to claim 5, it is characterised in that:It is described Flange(6)For long oval tabular, two sections of H profile steels are fixedly connected by middle part with symmetrical two rows of bolts, and two is in symmetrical semicircle Shape, respectively by symmetrical 2 sets of stress detection devices(3)After clamping, bolt is used(35)Symmetrical expression is fixed.
9. according to any blast furnace single-column type hot air furnace hot air piping displacement control system of claim 2 to 8, its feature exists In:The pressure sensor(34)Yu Jin Li≤20 ton;The top board(31), lower platen(32)And pressure head(33)Work The flatness in face is within 0.5mm;Each blast funnace hot blast stove unit(100)Middle hot-blast main(5)Bottom at least symmetrical expression is covered with 3 Root roller bearing(17), hot blast manifold bottom is at least covered with 1 roller bearing(17).
CN201610715697.XA 2016-08-24 2016-08-24 A kind of blast furnace single-column type hot air furnace hot air piping displacement control system CN106676218B (en)

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JP4869620B2 (en) * 2005-04-11 2012-02-08 新日本製鐵株式会社 Hot stove blower system
CN202246725U (en) * 2011-09-14 2012-05-30 中冶赛迪工程技术股份有限公司 Pressure balancing device applicable to warm air pipe end part of blast furnace hot blast stove
CN103088178B (en) * 2013-03-04 2014-09-10 江苏沙钢集团有限公司 Blast furnace hot-blast stove flue gas self-circulation combustion method and system
CN203904381U (en) * 2014-05-24 2014-10-29 北京首钢国际工程技术有限公司 Triangular flexible large pull rod device of hot air pipeline
CN206109444U (en) * 2016-08-24 2017-04-19 安徽马钢重型机械制造有限公司 Single -row formula hot -blast furnace hot -air pipes displacement control system of blast furnace
CN205933870U (en) * 2016-08-24 2017-02-08 安徽马钢重型机械制造有限公司 Hot -blast furnace hot -air pipes stable system

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