CN203411561U - Construction structure for warm-air pipe compensator of hot-blast stove - Google Patents
Construction structure for warm-air pipe compensator of hot-blast stove Download PDFInfo
- Publication number
- CN203411561U CN203411561U CN201320501137.6U CN201320501137U CN203411561U CN 203411561 U CN203411561 U CN 203411561U CN 201320501137 U CN201320501137 U CN 201320501137U CN 203411561 U CN203411561 U CN 203411561U
- Authority
- CN
- China
- Prior art keywords
- layer insulating
- brick
- insulating brick
- fire
- refractory
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Thermal Insulation (AREA)
Abstract
The utility model provides a construction structure for a warm-air pipe compensator of a hot-blast stove, and belongs to the technical field of hot-blast stoves in the metallurgical industry. The construction structure comprises a pipeline steel shell, an annular plate, a corrugated pipe, an expansion joint, a thermal insulating layer, fire-proof spray paint, first-layer thermal insulating bricks, second-layer thermal insulating bricks, fire-proof bricks, expansion gaps of the first-layer thermal insulating bricks, expansion gaps of the second-layer thermal insulating bricks, expansion gaps of the fire-proof bricks, and irregular fire-proof bricks. The construction structure has the advantages that the irregular fire-proof bricks can be used for effectively protecting fire-proof fiber blankets filled in the expansion gaps, so that the fire-proof fiber blankets can be prevented from being whirled away by high-temperature high-pressure airflow when a warm-air pipe works, particularly works in the early phase; the fire-proof fiber bricks can work stably for a long time under double effects of the irregular fire-proof bricks and heated compression, thermal expansion can be absorbed, and the corrugated pipe can be protected; the arrangement of reverse puzzle expansion joints is opposite to the flowing direction of gas, so that the difficulty that gas escapes into the corrugated pipe is increased, and multiple protections can be formed on the corrugated pipe; the whole stability of brickwork can be increased due to the locking of the fire-proof bricks and the irregular fire-proof bricks, and the warm-air pipe can be guaranteed to work stably for a long time.
Description
Technical field
The utility model belongs to metallurgy industry hotblast stove technical field, and a kind of hot air furnace hot air pipeline compensator masonry construction is particularly provided, and is applicable to the hotblast stove that in iron-smelting process, blast furnace ironmaking and fused reduction iron-smelting are used.Also can be used for other need to be heated to gaseous medium in 1000 ℃ of above industrial technology fields.
Background technology
In blast furnace ironmaking, by existing nearly two one-hundred-year histories of hotblast stove heat blowing, after heating, wind-warm syndrome only has 149 ℃ at first.Along with the continuous progress of technology, wind-warm syndrome is the highest has at present reached 1350 ℃.Wind-warm syndrome improves, and can significantly reduce coke ratio, saves coke, improves furnace processor, also can make full use of low-calorie blast furnace gas, improves thermo-efficiency, reduces coal gas diffusion, save energy, protection of the environment.
The design objective of pipeline of hot air furnace system is " low-stress, without overheated ", and along with the improving constantly of hot blast temperature, some problems also come out gradually, and being exactly comparatively typically that hot air duct box hat is overheated, rubescent even burns.
Hot air duct inside generally can be built multiple layer refractory by laying bricks or stones, comprises amorphous refractory, insulating brick, refractory brick etc., guarantees that the working temperature of box hat is below 150 ℃.Box hat can produce thermal expansion under this working temperature, if thermal expansion can not rationally effectively discharge, huge thermal stresses is enough to piping to damage, and affects the normal production of blast furnace.For this reason, FlexbleJoint is able to widespread use in the tubing system (not being hot air duct) of hotblast stove, greatly reduces Stress in Piping system, has realized the target of low-stress.But when realizing low-stress target, hot air duct superheating phenomenon becomes puzzlement production and designer's a new difficult problem, especially FlexbleJoint region, and superheating phenomenon happens occasionally, and has become the weak link of hot air duct.
The overheated rubescent major cause in hot air duct FlexbleJoint region is that structure of refractory design is unreasonable.Loop expansion pipe region structure of refractory is in the past shown in Fig. 1.
The first layer insulating brick and second layer insulating brick, according to different working temperatures, can be clayey insulating brick or High-Alumina insulating brick.During hotblast stove work, hot air duct box hat temperature is between 80 ℃～150 ℃, and consequent thermal expansion of pipeline amount is absorbed by corrugated tube 3 and expansion joint 4.Insulating brick and refractory brick are under the drive of box hat and the dual function of self thermal expansion, also can produce thermal walking, the dilatation joint 12 of the dilatation joint 10 of the first layer insulating brick, the dilatation joint 11 of second layer insulating brick and refractory brick is used for absorbing the heat displacement amount of refractory materials, and refractory fiber blanket is filled in the inside.In the loop expansion pipe masonry construction shown in Fig. 1, align with the dilatation joint 10 of the first layer insulating brick in expansion joint 4, with refractory brick 13, block the dilatation joint 10 of the first layer insulating brick, the side of refractory brick 13 is dilatation joints 11 of second layer insulating brick, and the dilatation joint 12 of refractory brick is positioned at over against the pipe interior of refractory brick 13.Although this structure utilizes dilatation joint 10,11 and 12 to form the labyrinth of turning back, but in actual use, the hot air duct work initial stage, because pipeline box hat and refractory brick not yet expand and put in place, refractory fiber blanket in dilatation joint is not compacted, and under the washing away of high temperature (>=1200 ℃) high pressure (>=0.3MPa) air-flow, the refractory fiber blanket that fill dilatation joint 12 the insides is very easily swept away by air-flow, now air-flow directly impacts refractory brick 13, has a strong impact on the stability of masonry construction.Under the washing away of long-time high-temperature high-pressure air flow, once crack appears in refractory brick 13, just between pipe interior and corrugated tube, formed passage, high-temperature gas is easy to just enter thermofin 5, causes that the box hat of corrugated tube and near zone is overheated, rubescently even burns.
For a long time, the rubescent difficult problem that becomes puzzlement Production design personnel of hot air duct loop expansion pipe, affects blast furnace and normally produces, and increases enterprise cost.
Summary of the invention
The purpose of this utility model is to provide a kind of hot air furnace hot air pipeline compensator masonry construction.By designing a kind of Novel fireproof brick, make the refractory fiber blanket in refractory brick dilatation joint can steady operation, by air-flow, do not swept away, in conjunction with reverse labyrinth dilatation joint, design, when guaranteeing pipeline box hat, insulating brick and refractory brick free expansion, high temperature and high pressure gas can not enter in corrugated tube, effectively avoids loop expansion pipe and near box hat overheated rubescent.Refractory brick belt lock catch, guarantees to realize interlocking between adjacent refractory brick in addition, increases the stability of whole masonry construction.
Masonry construction of the present utility model comprises: pipeline box hat 1, ring flat-plate 2, corrugated tube 3, expansion joint 4, thermofin 5, fire-proof spray coating 6, the first layer insulating brick 7, second layer insulating brick 8, refractory brick 9, the dilatation joint 10 of the first layer insulating brick, the dilatation joint 11 of second layer insulating brick, the dilatation joint 12 of refractory brick, quarl 14.
Pipeline box hat 1 and ring flat-plate 2 welding, ring flat-plate 2 disconnects in corrugated tube 3 inside with corrugated tube 3 welding, pipeline box hat 1, forms expansion joint 4, and filling with insulation material between corrugated tube 3 and pipeline box hat 1, forms thermofin 5.Pipeline box hat 1 internal spray fire-proof spray coating 6, at expansion joint, 4 places disconnect fire-proof spray coating 6, the interior filling refractory fiber blanket in expansion joint 4.The inside of fire-proof spray coating 6 is built the first layer insulating brick 7 by laying bricks or stones, between fire-proof spray coating 6 and the first layer insulating brick 7, with mud or oilpaper, build by laying bricks or stones, at expansion joint, 4 airflow downstream arranges the dilatation joint 10 of the first layer insulating brick, 10 li of filling refractory fiber blankets of dilatation joint of the first layer insulating brick.The first layer insulating brick 7 inside are built second layer insulating brick 8 by laying bricks or stones, between the first layer insulating brick 7 and second layer insulating brick 8, with mud or oilpaper, build by laying bricks or stones, the dilatation joint 11 of second layer insulating brick is set in the airflow downstream of the dilatation joint 10 of the first layer insulating brick, and 11 li of the dilatation joints of second layer insulating brick are filled refractory fiber blankets.The inside of second layer insulating brick 8 is built refractory brick 9 by laying bricks or stones, between second layer insulating brick 8 and refractory brick 9, with mud or oilpaper, build by laying bricks or stones, the dilatation joint 12 of refractory brick is set in the airflow downstream of the dilatation joint 11 of second layer insulating brick, and 12 li of the dilatation joints of refractory brick are filled refractory fiber blankets.Such three dilatation joints and expansion joint form stepped labyrinth, and labyrinth arranged direction is from inside to outside contrary with gas flow direction, and barrier gas enters in corrugated tube.Dilatation joint both sides at refractory brick are built quarl 14 by laying bricks or stones, and quarl is with the first boss 15, and boss form is semicircle square or trapezoidal, utilize the first boss 15 to form and close up at the dilatation joint place of refractory brick; The first boss 15 can effectively prevent that the refractory fiber blanket in dilatation joint from being swept away by airflow scouring, realizes long-term stable operation.Refractory brick 9 and quarl 14 are provided with latching system in pipe circumference direction, and snap close form is semicircle square or trapezoidal, realizes the interlocking of adjacent refractory brick, increases whole masonry stability.
By building the quarl with boss by laying bricks or stones in refractory brick dilatation joint both sides, form and close up, the refractory fiber blanket in protection dilatation joint, avoids it by high-temperature high-pressure air flow, to be swept away, and has fundamentally solved the textural defect that traditional loop expansion pipe masonry construction exists.At the hot air duct work initial stage, although pipeline box hat and refractory brick not yet expand and put in place, the refractory fiber blanket in refractory brick dilatation joint is not compacted, and has the protection of quarl, and refractory fiber blanket can not swept away by high-temperature high-pressure air flow.Continuous expanded by heating along with pipeline box hat and refractory brick, dilatation joint is constantly compacted, finally can reach steady state, now under the dual function of quarl and the compression of being heated, refractory fiber blanket in dilatation joint can be realized long-term stable operation, avoids loop expansion pipe and near box hat overheated rubescent.
The dilatation joint of the dilatation joint of expansion joint, the first layer insulating brick, second layer insulating brick and the dilatation joint of refractory brick are contrary with gas flow direction from the outside arranged direction of pipe interior; be that the dilatation joint of the first layer insulating brick is in the airflow downstream at expansion joint; the dilatation joint of second layer insulating brick is in the airflow downstream of the dilatation joint of the first layer insulating brick; the dilatation joint of refractory brick is in the airflow downstream of the dilatation joint of second layer insulating brick; 4 gap-shapeds become reverse labyrinth to arrange, effectively protect corrugated tube.
Refractory brick and different in nature refractory brick have snap close in pipe circumference direction, every brick all has boss in a side, boss form is semicircle square or trapezoidal, opposite side is fluted, and form of grooves is semicircle square or trapezoidal, and the groove of adjacent two bricks locks mutually with boss, realize the interlocking of domain brick, greatly improve the resistance to overturning of masonry, even if having indivedual bricks due to cause for quality or build reason cracking by laying bricks or stones or drop, also can not affect the resistance to overturning of masonry.After hot air duct work for some time, under action of gravity, the sedimentation slightly downwards of top brick, pipeline section becomes ellipse, because refractory brick has formed integral body by interlocking, there will not be and subside or big area is fallen brick phenomenon, guarantee hot air duct long-term stable operation.
The utility model can only be used one deck insulating brick, the present invention includes: the dilatation joint 10 of pipeline box hat 1, ring flat-plate 2, corrugated tube 3, expansion joint 4, thermofin 5, fire-proof spray coating 6, the first layer insulating brick 7, refractory brick 9, the first layer insulating brick, the dilatation joint 12 of refractory brick, quarl 14.
To sum up, structure of the present utility model utilizes quarl, reverse labyrinth dilatation joint to arrange and refractory brick interlocking structure, is achieved as follows function:
1) quarl is effectively protected the refractory fiber blanket of filling in dilatation joint, avoids it at hot air duct on period, and the initial stage of especially working is swept away by high-temperature high-pressure air flow;
2) under the dual function of quarl and the compression of being heated, refractory fiber blanket can be realized long-term stable operation, absorbing thermal expansion, protection corrugated tube;
3) dilatation joint layout in reverse labyrinth is contrary with gas flow, increases the difficulty of its corrugated tube that bleeds, and corrugated tube is formed to multiple protective;
4) snap close of refractory brick and quarl has increased the resistance to overturning of masonry, has realized the long-term stable operation of hot air duct.
Accompanying drawing explanation
Fig. 1 is the masonry construction figure in traditional hot air duct loop expansion pipe region.Wherein, pipeline box hat 1, ring flat-plate 2, corrugated tube 3, expansion joint 4, thermofin 5, fire-proof spray coating 6, the first layer insulating brick 7, second layer insulating brick 8, refractory brick 9, the dilatation joint 10 of the first layer insulating brick, the dilatation joint 11 of second layer insulating brick, the dilatation joint 12 of refractory brick, refractory brick 13.
Fig. 2 is the masonry construction figure in hot air duct loop expansion pipe of the present utility model region.Wherein, pipeline box hat 1, ring flat-plate 2, corrugated tube 3, expansion joint 4, thermofin 5, fire-proof spray coating 6, the first layer insulating brick 7, second layer insulating brick 8, refractory brick 9, the dilatation joint 10 of the first layer insulating brick, the dilatation joint 11 of second layer insulating brick, the dilatation joint 12 of refractory brick, quarl 14.
Fig. 3 is the brick shape figure of quarl 14.Wherein, quarl 14, the first boss 15.
Fig. 4 is that the A of quarl 14 is to view.Wherein, the second boss 16, groove 17.
Embodiment
Embodiment 1.
Fig. 2～Fig. 4 is specific implementation of the present utility model.
As shown in Figure 2, the masonry construction in hot air duct loop expansion pipe of the present utility model region comprises: pipeline box hat 1, ring flat-plate 2, corrugated tube 3, expansion joint 4, thermofin 5, fire-proof spray coating 6, the first layer insulating brick 7, second layer insulating brick 8, refractory brick 9, the dilatation joint 10 of the first layer insulating brick, the dilatation joint 11 of second layer insulating brick, the dilatation joint 12 of refractory brick, quarl 14.
From Fig. 3, Fig. 4, quarl 14 is with the first boss 15, and boss form is semicircle square or trapezoidal, the second boss 16, and boss form is semicircle square or trapezoidal, groove 17, form of grooves is semicircle square or trapezoidal.
Pipeline box hat 1 and ring flat-plate 2 welding, ring flat-plate 2 disconnects in corrugated tube 3 inside with corrugated tube 3 welding, pipeline box hat 1, forms expansion joint 4, and filling with insulation material between corrugated tube 3 and pipeline box hat 1, forms thermofin 5.Pipeline box hat internal spray fire-proof spray coating 6, at expansion joint, 4 places disconnect fire-proof spray coating 6, the interior filling refractory fiber blanket in expansion joint 4.Fire-proof spray coating 6 inside are built the first layer insulating brick 7 by laying bricks or stones, between fire-proof spray coating 6 and the first layer insulating brick 7, with mud or oilpaper, build by laying bricks or stones, at expansion joint, 4 airflow downstream arranges the dilatation joint 10 of the first layer insulating brick, 10 li of filling refractory fiber blankets of dilatation joint of the first layer insulating brick.The first layer insulating brick 7 inside are built second layer insulating brick 8 by laying bricks or stones, between the first layer insulating brick 7 and second layer insulating brick 8, with mud or oilpaper, build by laying bricks or stones, the dilatation joint 11 of second layer insulating brick is set in the airflow downstream of the dilatation joint 10 of the first layer insulating brick, and 11 li of the dilatation joints of second layer insulating brick are filled refractory fiber blankets.Second layer insulating brick 8 inside are built refractory brick 9 by laying bricks or stones, between second layer insulating brick 8 and refractory brick 9, with mud or oilpaper, build by laying bricks or stones, the dilatation joint 12 of refractory brick is set in the airflow downstream of the dilatation joint 11 of second layer insulating brick, and 12 li of the dilatation joints of refractory brick are filled refractory fiber blankets.Like this, expansion joint 4, the dilatation joint 10 of the first layer insulating brick, the dilatation joint 11 of second layer insulating brick and the dilatation joint 12 of refractory brick are contrary with gas flow direction from the outside arranged direction of pipe interior, form reverse labyrinth and arrange, the barrier gas corrugated tube that bleeds.
The both sides of the dilatation joint 12 of refractory brick are built quarl 14 by laying bricks or stones, quarl 14 is with the first boss 15, boss form is semicircle square or trapezoidal, utilize the first boss 15 to form and close up at dilatation joint 12 places of refractory brick, effectively prevent that the refractory fiber blanket in dilatation joint from being swept away by airflow scouring, realizes long-term stable operation.
In this is implemented, masonry construction and the Fig. 2 in hot air duct loop expansion pipe region are similar.Gas medium temperature in hot air duct is lower, only builds 1 layer of insulating brick by laying bricks or stones while getting final product, and can adopt this embodiment.
Now the masonry construction in hot air duct loop expansion pipe of the present utility model region comprises: pipeline box hat 1, ring flat-plate 2, corrugated tube 3, expansion joint 4, thermofin 5, fire-proof spray coating 6, the first layer insulating brick 7, refractory brick 9, the dilatation joint 10 of the first layer insulating brick, the dilatation joint 12 of refractory brick, quarl 14.
Pipeline box hat 1 and ring flat-plate 2 welding, ring flat-plate 2 disconnects in corrugated tube 3 inside with corrugated tube 3 welding, pipeline box hat 1, forms expansion joint 4, and filling with insulation material between corrugated tube 3 and pipeline box hat 1, forms thermofin 5.Pipeline box hat internal spray fire-proof spray coating 6, at expansion joint, 4 places disconnect fire-proof spray coating 6, the interior filling refractory fiber blanket in expansion joint 4.Fire-proof spray coating 6 inside are built the first layer insulating brick 7 by laying bricks or stones, between fire-proof spray coating 6 and the first layer insulating brick 7, with mud or oilpaper, build by laying bricks or stones, at expansion joint, 4 airflow downstream arranges the dilatation joint 10 of the first layer insulating brick, 10 li of filling refractory fiber blankets of dilatation joint of the first layer insulating brick.The first layer insulating brick 7 inside are built refractory brick 9 by laying bricks or stones, between the first layer insulating brick 7 and refractory brick 9, with mud or oilpaper, build by laying bricks or stones, the dilatation joint 12 of refractory brick is set in the airflow downstream of the dilatation joint 10 of the first layer insulating brick, and 12 li of the dilatation joints of refractory brick are filled refractory fiber blankets.Like this, expansion joint 4, the dilatation joint 10 of the first layer insulating brick and the dilatation joint 12 of refractory brick are contrary with gas flow direction from the outside arranged direction of pipe interior, form reverse labyrinth and arrange, the barrier gas corrugated tube that bleeds.
The both sides of the dilatation joint 12 of refractory brick are built quarl 14 by laying bricks or stones, quarl 14 is with the first boss 15, boss form is semicircle square or trapezoidal, utilize the first boss 15 to form and close up at dilatation joint 12 places of refractory brick, effectively prevent that the refractory fiber blanket in dilatation joint from being swept away by airflow scouring, realizes long-term stable operation.
The masonry construction in the utility model hot air duct loop expansion pipe region has multiple embodiments, the accompanying drawing explanation use that only lays down a definition, not limitation of the present invention.Anyly do not depart from mentality of designing of the present invention, the present invention is done to unsubstantiality changes, all still belong to scope of the present utility model.
Claims (5)
1. a hot air furnace hot air pipeline compensator masonry construction, comprise: the dilatation joint of pipeline box hat, ring flat-plate, corrugated tube, expansion joint, thermofin, fire-proof spray coating, the first layer insulating brick, second layer insulating brick, refractory brick, the first layer insulating brick, the dilatation joint of second layer insulating brick, the dilatation joint of refractory brick, quarl; It is characterized in that, pipeline box hat (1) and ring flat-plate (2) welding, ring flat-plate (2) disconnects in corrugated tube (3) inside with corrugated tube (3) welding, pipeline box hat (1), forms expansion joint (4); Filling with insulation material between corrugated tube (3) and pipeline box hat (1), forms thermofin (5); Pipeline box hat (1) internal spray fire-proof spray coating (6), fire-proof spray coating (6) at expansion joint (4) locate to disconnect, in expansion joint (4), fill refractory fiber blanket; Fire-proof spray coating (6) inside is built the first layer insulating brick (7) by laying bricks or stones, between fire-proof spray coating (6) and the first layer insulating brick (7), with mud or oilpaper, build by laying bricks or stones, at expansion joint, the airflow downstream of (4) arranges the dilatation joint (10) of the first layer insulating brick, the inner refractory fiber blanket of filling of the dilatation joint of the first layer insulating brick (10); The first layer insulating brick (7) inside is built second layer insulating brick (8) by laying bricks or stones, between the first layer insulating brick (7) and second layer insulating brick (8), with mud or oilpaper, build by laying bricks or stones, the dilatation joint (11) of second layer insulating brick is set, the inner refractory fiber blanket of filling of the dilatation joint of second layer insulating brick (11) in the airflow downstream of the dilatation joint (10) of the first layer insulating brick; The inside of second layer insulating brick (8) is built refractory brick (9) by laying bricks or stones, between second layer insulating brick (8) and refractory brick (9), with mud or oilpaper, build by laying bricks or stones, the dilatation joint (12) of refractory brick is set, the inner refractory fiber blanket of filling of the dilatation joint of refractory brick (12) in the airflow downstream of the dilatation joint (11) of second layer insulating brick; Dilatation joint (12) both sides at refractory brick are built quarl (14) by laying bricks or stones.
2. hot air furnace hot air pipeline compensator masonry construction according to claim 1, it is characterized in that, the dilatation joint (11) of the dilatation joint of the first layer insulating brick (10), second layer insulating brick, the dilatation joint (12) of refractory brick and expansion joint (4) form stepped labyrinth, and stepped labyrinth is contrary with gas flow direction from arranged direction outside in pipeline.
3. hot air furnace hot air pipeline compensator masonry construction according to claim 1, is characterized in that, described quarl (14) is with the first boss (15), and the form of the first boss (15) is semicircle square or trapezoidal.
4. hot air furnace hot air pipeline compensator masonry construction according to claim 1, it is characterized in that, refractory brick and different in nature refractory brick have snap close in pipe circumference direction, every block of refractory brick and quarl all have the second boss (16) in a side, the form of the second boss (16) is semicircle square or trapezoidal, opposite side fluted (17), the form of groove (17) is semicircle square or trapezoidal, the groove of adjacent two bricks (17) locks mutually with the second boss (16).
5. hot air furnace hot air pipeline compensator masonry construction according to claim 1, it is characterized in that, only use one deck insulating brick, comprise: pipeline box hat, ring flat-plate, corrugated tube, expansion joint, thermofin, fire-proof spray coating, the first layer insulating brick, refractory brick, the dilatation joint of the first layer insulating brick, the dilatation joint of refractory brick, quarl.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320501137.6U CN203411561U (en) | 2013-08-16 | 2013-08-16 | Construction structure for warm-air pipe compensator of hot-blast stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320501137.6U CN203411561U (en) | 2013-08-16 | 2013-08-16 | Construction structure for warm-air pipe compensator of hot-blast stove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203411561U true CN203411561U (en) | 2014-01-29 |
Family
ID=49974465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320501137.6U Expired - Fee Related CN203411561U (en) | 2013-08-16 | 2013-08-16 | Construction structure for warm-air pipe compensator of hot-blast stove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203411561U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103451341A (en) * | 2013-08-16 | 2013-12-18 | 北京首钢国际工程技术有限公司 | Hot-blast duct compensator masonry structure of hot-blast furnace |
| CN107828928A (en) * | 2017-11-03 | 2018-03-23 | 山西太钢不锈钢股份有限公司 | A kind of hot air duct |
| CN107937646A (en) * | 2017-11-03 | 2018-04-20 | 山西太钢不锈钢股份有限公司 | A kind of building method of hot air duct |
-
2013
- 2013-08-16 CN CN201320501137.6U patent/CN203411561U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103451341A (en) * | 2013-08-16 | 2013-12-18 | 北京首钢国际工程技术有限公司 | Hot-blast duct compensator masonry structure of hot-blast furnace |
| CN103451341B (en) * | 2013-08-16 | 2015-10-14 | 北京首钢国际工程技术有限公司 | A kind of Hot-blast duct compensator masonry structure of hot-blast furnace |
| CN107828928A (en) * | 2017-11-03 | 2018-03-23 | 山西太钢不锈钢股份有限公司 | A kind of hot air duct |
| CN107937646A (en) * | 2017-11-03 | 2018-04-20 | 山西太钢不锈钢股份有限公司 | A kind of building method of hot air duct |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103451341B (en) | A kind of Hot-blast duct compensator masonry structure of hot-blast furnace | |
| CN203411561U (en) | Construction structure for warm-air pipe compensator of hot-blast stove | |
| CN203373369U (en) | Hot-air pipe lining for hot air furnace | |
| CN108193010B (en) | Lining building structure of hot air pipeline and three-fork lining building structure of hot air pipeline | |
| CN203411560U (en) | Construction structure of fireproof material in air heating pipeline ripple compensator of air heating furnace | |
| CN103409573B (en) | Masonry structure of refractory material in hot-blast stove warm-air pipe ripple compensator | |
| CN208545452U (en) | A kind of non-circular channels hot air duct masonry construction | |
| CN205099709U (en) | Super high temperature hot air stove hot -air pipes that ring fork was built by laying bricks or stones | |
| CN201392097Y (en) | Novel reducing furnace for ore experiment | |
| CN107447066A (en) | Integral type pulverized coal injection in blast furnace preheater | |
| CN204676109U (en) | A kind of metallurgical furnace kiln high-temperature hot-air pipeline brick | |
| CN100593680C (en) | Inside lining structure of hot-air pipe expansion joint of blast heating furnace | |
| CN107828928A (en) | A kind of hot air duct | |
| CN104694139A (en) | Coke oven raw gas heat exchanger with flow guide device | |
| CN105002317A (en) | Heat accumulating type burner for heating furnace | |
| CN201724196U (en) | Boiler screen type heating-surface furnace top tube-penetrating bundle heat-preserving and sealing device | |
| CN205669037U (en) | Low stress branch pipe tee connection ball mouth structure | |
| CN203517865U (en) | Boiler liner of circulating fluidized bed boiler | |
| CN203478230U (en) | Valve liner | |
| CN204644307U (en) | A kind of new type of airflow bed gasification furnace chilling ring | |
| CN203498406U (en) | Labyrinth universal dilatation joint structure | |
| CN202808837U (en) | Copper cooling wall with boss | |
| CN205191632U (en) | Chain line's independent vault structure is hanged in match of top combustion stove circular arc | |
| CN207066093U (en) | A kind of cover for kiln head of cement kiln | |
| CN204340296U (en) | The wear-resisting net of ceramic fibre metal arbor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140129 Termination date: 20190816 |