CN103484589A - Low-temperature hot blast heater construction method - Google Patents
Low-temperature hot blast heater construction method Download PDFInfo
- Publication number
- CN103484589A CN103484589A CN201310418345.4A CN201310418345A CN103484589A CN 103484589 A CN103484589 A CN 103484589A CN 201310418345 A CN201310418345 A CN 201310418345A CN 103484589 A CN103484589 A CN 103484589A
- Authority
- CN
- China
- Prior art keywords
- steam
- layer
- hotblast stove
- bearing
- isolating frame
- 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.)
- Granted
Links
Images
Abstract
The invention relates to a low-temperature hot blast heater construction method. The method comprises the following steps that a hot blast heater shell is built and is wrapped with a heat insulation layer; a support is installed in the shell and is provided with a partition frame, and a heat insulation layer is laid on the support; a steam heat dissipation frame is arranged on the lower portion of the partition frame and is communicated with a flexible steam pipe, and steam is filled into the steam heat dissipation frame and the flexible steam pipe; the steam heat dissipation frame is lifted up in the air through a sling and a lifting device to carry out space heating; fireproof materials are transported to space and stored, the temperature of the materials rises, and then the interior structure of a heat blast heater is built; the partition frame is lifted to a higher position, a bracket is installed to support the partition frame, a heat insulation layer is laid, and the steam heat dissipation frame is lifted to a required position; the interior structure continues to be built, and the steps above are repeatedly carried out until the construction is finished. Due to the adoption of the construction method, under the temperature lower than 5DEG C, the fireproof materials can be utilized to build the interior structure of the hot blast heater, the built hot blast heater meets quality requirements, and the schedule of the engineering will not be delayed when winter comes.
Description
Technical field
The present invention relates to a kind of constructional method of building hotblast stove, concrete is a kind of constructional method of building hotblast stove under cold condition.
Background technology
Hotblast stove is the main support equipment of Iron Works, and its function is to provide for blast furnace is continual high-temperature hot-air more than 1000 degree to meet the smelting demand.Traditional constructional method of building hotblast stove is, with steel plate, builds on ground and welds assembled formation hotblast stove housing, then in enclosure interior, by refractory materials, is spliced to form the build structure.
Above-mentioned refractory materials mainly comprises refractory brick and refractory mortar, and refractory mortar is the composition be mixed to form by solid fine particle, powder, wedding agent, additive etc., after the water mix and blend, forms muddy, and has cementability.Utilize refractory mortar by the refractory brick adhesion, be spliced into the build structure needed, after mud fully solidifies, can come into operation.
During hotblast stove work, its inner high-temperature hot-air forms long-term erosion to building structure, adds in stove and has local temperature difference, and the inner structure of building meets with stresses for a long time.For guaranteeing to build the quality of structure, when traditional form of construction work of hotblast stove requires envrionment temperature higher than 5 ℃, just can carry out the refractory materials build, otherwise because temperature is too low, will cause refractory mortar to freeze to reach construction requirement.In recent years, because the job schedule requirement is more and more higher, need to carry out in the winter time installation, can be lower than-20 ℃ for the northern area of China winter temperature, if do not take suitable Insulation, just can not construct or can not meet construction requirement, need to stop work and return to work again after temperature gos up.
Summary of the invention
Technical problem to be solved by this invention is: provide a kind of and can under cold condition, build the constructional method of hotblast stove, when envrionment temperature, during lower than 5 ℃, still can utilize refractory materials to build the hotblast stove internal structure, and meet specification of quality.
The technical solution adopted for the present invention to solve the technical problems is: the constructional method of hotblast stove under cold condition comprises the following steps:
A, build the hotblast stove housing, and at hotblast stove housing external parcel housing thermal insulation layer;
The first layer bearing is installed in B, the bottom in the hotblast stove housing overhead preset height, and sets up isolating frame on above-mentioned the first layer bearing; Lay base insulating layer on described isolating frame; The first layer keeping warmth space is formed at the bottom at above-mentioned isolating frame;
C, in described the first layer keeping warmth space, the steam heat radiation rack is set, described steam heat radiation rack is communicated with steam hose, by the external steam room to steam hose and steam heat radiation rack delivering vapor; Described steam heat radiation rack is connected with the lifting device at hotblast stove top by hoist cable, and lifting device is sling the steam heat radiation rack is unsettled, utilizes steam to heat the first layer keeping warmth space;
Refractory mortar is made in D, stirring;
E, the refractory materials that will comprise refractory brick and refractory mortar are transported to described the first layer keeping warmth space and store;
F, after refractory temperatures reaches construction requirement, utilize refractory materials to build the hotblast stove internal structure at the first layer keeping warmth space;
G, after the internal structure constructed is fully solidified, utilize lifting device upwards to promote preset height original isolating frame, and on the hotblast stove housing below isolating frame, second layer bearing be installed, isolating frame is placed on second layer bearing; Lay base insulating layer on isolating frame, below the isolating frame on above-mentioned installation second layer bearing and the space between former the first layer support position forms second layer keeping warmth space; With lifting device, the steam heat radiation rack upwards being risen to second layer keeping warmth space is heated; The internal structure that continues to build hotblast stove second layer keeping warmth space according to above-mentioned steps D, E, the same method of F;
H, repeat above step, form the 3rd layer to N layer keeping warmth space and build corresponding hotblast stove internal structure, until whole hotblast stove internal structure has been built.
Further, before carrying out step e, also have following steps: by refractory materials preheating in the preheating canopy, and lasting Preset Time, being equipped with the steam-pipe with thermal conductivity in described preheating canopy, described steam-pipe inside is connected with steam.
Further, be provided with stirrer and storage ashpit in described preheating canopy, described step D completes in the preheating canopy, and stir the refractory mortar completed and put into the storage ashpit, described storage ashpit bottom is built the steam pond is arranged with fragment of brick, described steam pond is provided with steam admission port, steam outlet and water port, and steam is connected with steam in pond.
Further, in described step D, adopt hot water to stir and make refractory mortar, described hot water temperature is at 35 ℃～50 ℃.
Further, described bearing is to be arranged on the hotblast stove enclosure interior by threaded fastener, in described step G, after isolating frame is promoted to preset height and is arranged on the bearing of last layer, the bearing of lower one deck is removed.
Further, in described step G, after isolating frame is promoted to preset height and is arranged on the bearing of last layer, lay isolating frame on the bearing of lower one deck, and lay thermal insulation layer on isolating frame.
Further, the vertical separation between every layer of bearing is 3～5 meters.
The invention has the beneficial effects as follows: adopt constructional method of the present invention, envrionment temperature lower than the condition of 5 ℃ under, also can utilize refractory materials to build the hotblast stove internal structure, and the hotblast stove constructed meets specification of quality, can job schedule be stopped because of winter approached.
The accompanying drawing explanation
Fig. 1 is that now the steam heat radiation rack is in the first layer keeping warmth space for hotblast stove schematic diagram of the present invention is described;
Fig. 2 is that now the steam heat radiation rack is in second layer keeping warmth space for hotblast stove schematic diagram of the present invention is described;
In figure, the parts Reference numeral is: 1-hotblast stove housing, 11-housing thermal insulation layer, 2-the first layer keeping warmth space, 21-the first layer bearing, 211-second layer bearing, 22-isolating frame, 23-base insulating layer, 3-second layer keeping warmth space, 4-steam-pipe, 5-transport corridor, 6-steam heat radiation rack, 61-steam hose, 62-hoist cable, 63-lifting device, 7-preheating canopy, 71-stirrer, 72-storage ashpit, 721-steam pond, 8-winding tower.
Embodiment
Below in conjunction with drawings and Examples, the present invention is further described:
As shown in Figure 1, the constructional method of hotblast stove under cold condition comprises the following steps:
A, build hotblast stove housing 1, and at hotblast stove housing 1 external parcel housing thermal insulation layer 11;
The first layer bearing 21 is installed in B, the bottom in hotblast stove housing 1 overhead preset height, and sets up isolating frame 22 on above-mentioned the first layer bearing 21; Lay base insulating layer 23 on described isolating frame 22; The first layer keeping warmth space 2 is formed at the bottom at above-mentioned isolating frame 22;
C, in described the first layer keeping warmth space 2, steam heat radiation rack 6 is set, described steam heat radiation rack 6 is communicated with steam hose 61, by the external steam room to steam hose 61 and steam heat radiation rack 6 delivering vapors; Described steam heat radiation rack 6 is connected with the lifting device 63 at hotblast stove top by hoist cable 62, and lifting device 63 is sling steam heat radiation rack 6 is unsettled, utilizes steam to heat the first layer keeping warmth space 2;
Refractory mortar is made in D, stirring;
E, the refractory materials that will comprise refractory brick and refractory mortar are transported to described the first layer keeping warmth space 2 and store;
F, after refractory temperatures reaches construction requirement, utilize refractory materials to build the hotblast stove internal structures at the first layer keeping warmth space 2;
G, after the internal structure constructed is fully solidified, utilize lifting device 63 upwards to promote preset height original isolating frame 22, and on the hotblast stove housing 1 below isolating frame 22, second layer bearing 211 be installed, isolating frame 22 is placed on second layer bearing 211; Lay base insulating layer 23 on isolating frame 22, below the isolating frame 22 on above-mentioned installation second layer bearing 211 and space between former the first layer bearing 21 positions forms second layer keeping warmth space 3; With lifting device 63, steam heat radiation rack 6 upwards being risen to second layer keeping warmth space 3 is heated; The internal structure that continues to build hotblast stove second layer keeping warmth space 3 according to above-mentioned steps D, E, the same method of F;
H, repeat above step, form the 3rd layer to N layer keeping warmth space and build corresponding hotblast stove internal structure, until whole hotblast stove internal structure has been built.
Constructional method of the present invention, be first to build hotblast stove housing 1, then at the peripheral parcel of housing housing thermal insulation layer 11.Described housing thermal insulation layer 11 is first with the 8# iron wire, the flax silk woven bag to be worn one by one, and then the girth that length is furnace shell hangs on the steel nail of furnace shell spot welding in advance, and the quantity of steel nail and position, according to the practical situation setting, adopt every circle on average to weld 12 steel nails usually; And then with iron wire, the woven bag from coil to coil is tied, complete a circle woven bag and lay; According to same method, continue to lay woven bag above this circle woven bag, every layer of adjacent position of woven bag need to interlock and overlap 150mm; Finally, at the peripheral one deck plastic flame cloth that covers of woven bag, housing thermal insulation layer 11 has wrapped up.Housing thermal insulation layer 11 can be disposable whole hotblast stove housing 1 to be wrapped up fully, can be also according to circumstances first to wrap up a part, after its interior construction completes, then wraps up another part.The effect of housing thermal insulation layer 11 is to play heat-blocking action, reduces the inside and outside heat of housing and transmits.
Then at the inner the first layer bearing 21 of installing of hotblast stove housing 1, and set up isolating frame 22 on the first layer bearing 21, the effect of the first layer bearing 21 is to be the providing support a little of isolating frame 22, and its embodiment can be to adopt welding or be threaded to wait usual way to install one on hotblast stove housing 1 to enclose bearing.The height of installing is selected according to practical situation, if envrionment temperature is very low, the first layer bearing 21 can be arranged on to overhead lower position, like this after putting up isolating frame 22 and base insulating layer 23, the first layer keeping warmth space 2 less that form between isolating frame 22 and housing thermal insulation layer 11, be conducive to temperature increase in hotblast stove; If envrionment temperature is not low especially, the first layer bearing 21 can be arranged on to higher height, form larger the first layer keeping warmth space 2, with accelerating construction progress.Common, the mounting height of the first layer bearing 21 is chosen between 3～5 meters.
In the first layer bearing 21, the quantity of bearing is selected according to practical situation, as long as can reach stable support isolating frame 22.
Isolating frame 22 is to utilize steel pipe, steel plate is built and is formed and be arranged on the first layer bearing 21, building method can adopt method of the prior art, for example utilize steel pipe and scaffold clasp to connect and connect setting support, according to circumstances isolating frame 22 can directly be placed on the first layer bearing 21, perhaps for greater safety, utilize bolt fasteners to be locked isolating frame 22 and the first layer bearing 21 tie points.Lay the base insulating layer 23 that 8mm rubber and flax silk woven bag form on isolating frame 22.
At the first layer keeping warmth space 2, steam heat radiation rack 6 is set, steam heat radiation rack 6 can adopt stainless-steel pipe welding metal radiator element to make, and is communicated with steam hose 61, and the steam of being sent here by steam hose 61 by external boiler room or vaporium.Utilize heat to transmit or heat radiation principle, make the first layer keeping warmth space 2 internal temperatures rise.Described steam heat radiation rack 6 is connected with the lifting device 63 at hotblast stove top by hoist cable 62, and lifting device 63 can drive steam heat radiation rack 6 and promotes or land, and slings in position steam heat radiation rack 6 is unsettled, and the first layer keeping warmth space 2 is heated.
Stir and make refractory mortar, refractory mortar forms fire-resistant slurry powder by solid fine particle, powder, wedding agent, additive etc., adds water and fully stirs rear formation muddy and have cementability.The refractory materials such as refractory mortar and refractory brick is through winding tower 8 and send the first layer keeping warmth space 2 that under construction is delivered in defeated corridor 5 to store.The heat that utilizes steam heat radiation rack 6 to bring, the temperature of refractory mortar and refractory brick can get a promotion, and just can start to build internal structure after refractory temperatures reaches execution conditions.
After the internal structure constructed is fully solidified, utilize lifting device 63 to promote certain altitude original isolating frame 22, then second layer bearing 211 is installed on the hotblast stove housing 1 below isolating frame 22.Isolating frame 22 needs the height of lifting identical with aforesaid principle, usually selects 3～5 meters.The method that second layer bearing 211 is installed is identical with aforesaid installation the first layer bearing 21 methods.Adopt aforementioned same method that isolating frame 22 is placed on second layer bearing 211, and lay base insulating layer 23.Form second layer keeping warmth space 3 below isolating frame 22 and between original the first layer bearing 21 positions.Utilize lifting device 63 that steam heat radiation rack 6 is risen to second layer keeping warmth space 3 and heated, the internal structure that continues to build second layer keeping warmth space 3 according to aforementioned same method.
Repeat above method, form the 3rd layer to N layer keeping warmth space and build corresponding internal structure, until whole hotblast stove internal structure has been built.
Adopt constructional method of the present invention, the hotblast stove of building and comparing of completing under normal temps, can reach basically identical quality level and work-ing life.In actual production, according to the working-yard particular case, when temperature is higher by day, need not or use less the steam of heating use, to reduce expenses.
In the above embodiment, if the construction environment temperature is very low, refractory materials is transported in hotblast stove, usually need the heating through the longer time, could meet the temperature condition of construction, so preferred embodiment a kind of: before carrying out step e, also have following steps: by refractory materials in the interior preheating of preheating canopy 7, and lasting Preset Time, being equipped with the steam-pipe 4 with thermal conductivity in described preheating canopy 7, described steam-pipe 4 inside are connected with steam.
Can near hotblast stove, with steelframe and glued board, build preheating canopy 7 agent structures, and then the roofing asbestos tile.In preheating canopy 7, set up number row steam-pipe 4 apart from a distance, roof, its quantity arranges according to preheating canopy 7 real space sizes.Steam-pipe 4 inside are connected with steam, and refractory materials is left in preheating canopy 7, can realize that refractory temperatures rises.The time of preheating determines according to the practical situation situation, if envrionment temperature is lower, or the material of preheating is many, can proper extension warm up time.Usually warm up time was at 1.5～2.5 hours.
Except by refractory materials in the interior prior preheating of preheating canopy 7, can also be to the further preheating of the refractory mortar of making, following embodiment for example: be provided with stirrer 71 and storage ashpit 72 in described preheating canopy 7, described step D completes in preheating canopy 7, and stir the refractory mortar completed and put into storage ashpit 72, described storage ashpit 72 bottoms are built steam pond 721 are arranged with fragment of brick, described steam pond 721 is provided with steam admission port, steam outlet and water port, in steam pond 721, is connected with steam.
The benefit of this embodiment is, stirring and making refractory mortar is to complete in preheating canopy 7, carry out preheating in stirred slurry, in addition, refractory mortar after stirring, temporarily be stored in ashpit 72, in the steam pond 721 of storage ashpit 72 bottoms, be connected with steam, can be to the mud heating in storage ashpit 72.Described steam admission port is arranged on the eminence in steam pond 721, and steam outlet is arranged on steam pond 721 lowers, and water port is arranged on the lowest part in steam pond 721; Described steam fills the steam admission port and enters steam pond 721, is full of behind steam pond 721 and discharges from steam outlet, through the cooled distilled water of heat exchange, can flow out steam pond 721 from water port.
When stirring the making refractory mortar, for improving faster the mud temperature, can in described step D, adopt hot water to stir and make refractory mortar, described hot water temperature is at 35 ℃～50 ℃.
Make refractory mortar owing to adopting hot water to stir, the refractory mortar temperature is significantly promoted, can meet as early as possible the temperature required condition of construction.Usually adopt the hot water temperature to be not less than 35 ℃, to guarantee heats, the hot water temperature should not surpass 50 ℃, otherwise likely refractory mortar character is formed to impact.
In above embodiment, each layer of bearing can be to adopt several different methods of the prior art to be arranged on hotblast stove housing 1 inside, preferably, described bearing is to be arranged on hotblast stove housing 1 inside by threaded fastener, in described step G, after isolating frame 22 is promoted to preset height and is arranged on the bearing of last layer, the bearing of lower one deck is removed.Bearing after dismounting can be reused in successive projects.
In above embodiment, according to construction speed, original isolating frame 22 and base insulating layer 23 upwards to be promoted, form the keeping warmth space of different positions, preferably, can be in described step G, after isolating frame 22 is promoted to preset height and is arranged on the bearing of last layer, lay isolating frame on the bearing of lower one deck, and lay thermal insulation layer on isolating frame.In this embodiment, in hotblast stove housing 1 inside, be provided with respectively up and down two-layer thermal insulation layer, at the corresponding keeping warmth space of upper and lower two-layer thermal insulation layer intermediate formation, can better reach heat insulation effect.
Preferably 3～5 meters of vertical separations between aforesaid every layer of bearing, can meet the insulation demand of most domestic construction environment, can ensure in hotblast stove housing 1 that enough construction spaces are arranged simultaneously.
Claims (7)
1. the constructional method of hotblast stove under cold condition, is characterized in that, comprises the following steps:
A, build hotblast stove housing (1), and at hotblast stove housing (1) external parcel housing thermal insulation layer (11);
The first layer bearing (21) is installed in B, the bottom in hotblast stove housing (1) overhead preset height, and sets up isolating frame (22) on above-mentioned the first layer bearing (21); Lay base insulating layer (23) on described isolating frame (22); The first layer keeping warmth space (2) is formed at the bottom at above-mentioned isolating frame (22);
C, steam heat radiation rack (6) is set in described the first layer keeping warmth space (2), described steam heat radiation rack (6) is communicated with steam hose (61), by the external steam room to steam hose (61) and steam heat radiation rack (6) delivering vapor; Described steam heat radiation rack (6) is connected with the lifting device (63) at hotblast stove top by hoist cable (62), and lifting device (63), by unsettled the slinging of steam heat radiation rack (6), utilizes steam to heat the first layer keeping warmth space (2);
Refractory mortar is made in D, stirring;
E, the refractory materials that will comprise refractory brick and refractory mortar are transported to described the first layer keeping warmth space (2) and store;
F, after refractory temperatures reaches construction requirement, utilize refractory materials to build the hotblast stove internal structure at the first layer keeping warmth space (2);
G, after the internal structure constructed is fully solidified, utilize lifting device (63) upwards to promote preset height original isolating frame (22), and, at the upper second layer bearing (211) of installing of the hotblast stove housing (1) of isolating frame (22) below, isolating frame (22) is placed on second layer bearing (211); At the upper base insulating layer (23) of laying of isolating frame (22), the space between the below of the isolating frame (22) on above-mentioned installation second layer bearing (211) and former the first layer bearing (21) position forms second layer keeping warmth space (3); With lifting device (63), steam heat radiation rack (6) upwards being risen to second layer keeping warmth space (3) is heated; The internal structure that continues to build hotblast stove second layer keeping warmth space (3) according to above-mentioned steps D, E, the same method of F;
H, repeat above step, form the 3rd layer to N layer keeping warmth space and build corresponding hotblast stove internal structure, until whole hotblast stove internal structure has been built.
2. the constructional method of hotblast stove as claimed in claim 1 under cold condition, it is characterized in that, before carrying out step e, also have following steps: by refractory materials preheating in preheating canopy (7), and lasting Preset Time, be equipped with the steam-pipe (4) with thermal conductivity in described preheating canopy (7), described steam-pipe (4) inside is connected with steam.
3. the constructional method of hotblast stove as claimed in claim 2 under cold condition, it is characterized in that, be provided with stirrer (71) and storage ashpit (72) in described preheating canopy (7), described step D completes in preheating canopy (7), and stir the refractory mortar completed and put into storage ashpit (72), described storage ashpit (72) bottom is built steam pond (721) is arranged with fragment of brick, described steam pond (721) is provided with steam admission port, steam outlet and water port, and the steam pond is connected with steam in (721).
4. the constructional method of hotblast stove as claimed in claim 1 under cold condition, is characterized in that, in described step D, adopts hot water to stir and make refractory mortar, and described hot water temperature is at 35 ℃～50 ℃.
5. the constructional method of hotblast stove as claimed in claim 1 under cold condition, it is characterized in that, described bearing is to be arranged on hotblast stove housing (1) inside by threaded fastener, in described step G, after isolating frame (22) is promoted to preset height and is arranged on the bearing of last layer, the bearing of lower one deck is removed.
6. the constructional method of hotblast stove as claimed in claim 1 under cold condition, it is characterized in that, in described step G, after isolating frame (22) is promoted to preset height and is arranged on the bearing of last layer, lay isolating frame on the bearing of lower one deck, and lay thermal insulation layer on isolating frame.
7. the constructional method of hotblast stove as claimed in claim 1 under cold condition, is characterized in that, the vertical separation between every layer of bearing is 3～5 meters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310418345.4A CN103484589B (en) | 2013-09-13 | 2013-09-13 | Low-temperature hot blast heater construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310418345.4A CN103484589B (en) | 2013-09-13 | 2013-09-13 | Low-temperature hot blast heater construction method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103484589A true CN103484589A (en) | 2014-01-01 |
| CN103484589B CN103484589B (en) | 2015-01-07 |
Family
ID=49825178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310418345.4A Active CN103484589B (en) | 2013-09-13 | 2013-09-13 | Low-temperature hot blast heater construction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103484589B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104848037A (en) * | 2015-06-11 | 2015-08-19 | 中国二十二冶集团有限公司 | Hot blast stove-unopened construction process masonry slurry automatic conveying system |
| CN106586912A (en) * | 2016-12-26 | 2017-04-26 | 中国冶集团有限公司 | Group air heating furnace on-line overhauling refractory material transport system and overhauling method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1076218A (en) * | 1992-01-24 | 1993-09-15 | 胡格温斯·格罗波公司 | Hotblast stove and method of construction thereof |
| KR20040044743A (en) * | 2002-11-22 | 2004-05-31 | 주식회사 포스코 | A method for constructing fire bricks of hot blast pipe |
| JP2008202129A (en) * | 2007-02-22 | 2008-09-04 | Jfe Steel Kk | Method for partially repairing regenerator in hot stove |
| CN101451168A (en) * | 2008-12-11 | 2009-06-10 | 中冶东北建设有限公司结构制造安装工程公司 | Hot-air stove shell installation method |
-
2013
- 2013-09-13 CN CN201310418345.4A patent/CN103484589B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1076218A (en) * | 1992-01-24 | 1993-09-15 | 胡格温斯·格罗波公司 | Hotblast stove and method of construction thereof |
| KR20040044743A (en) * | 2002-11-22 | 2004-05-31 | 주식회사 포스코 | A method for constructing fire bricks of hot blast pipe |
| JP2008202129A (en) * | 2007-02-22 | 2008-09-04 | Jfe Steel Kk | Method for partially repairing regenerator in hot stove |
| CN101451168A (en) * | 2008-12-11 | 2009-06-10 | 中冶东北建设有限公司结构制造安装工程公司 | Hot-air stove shell installation method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104848037A (en) * | 2015-06-11 | 2015-08-19 | 中国二十二冶集团有限公司 | Hot blast stove-unopened construction process masonry slurry automatic conveying system |
| CN106586912A (en) * | 2016-12-26 | 2017-04-26 | 中国冶集团有限公司 | Group air heating furnace on-line overhauling refractory material transport system and overhauling method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103484589B (en) | 2015-01-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206844742U (en) | A kind of assembled energy-saving communication base station room | |
| CN110629759B (en) | Method for reducing internal and external temperature difference during winter construction of mass concrete foundation | |
| CN106592430A (en) | Cast-in-place winter construction method for hanging basket cantilever | |
| CN108951636A (en) | A kind of extremely frigid zones subway station concrete construction heat preserving method | |
| CN206111210U (en) | Freeze proof device of long tunnel concrete in winter of cold area heat preservation | |
| CN108908673A (en) | High and cold low pressure area Precast T-Beam steam press maintenance method | |
| CN103484589B (en) | Low-temperature hot blast heater construction method | |
| CN201809424U (en) | Premelting pot system | |
| CN107310045A (en) | A kind of totally-enclosed ground heating heat insulation formula concrete plant | |
| CN109610894A (en) | A kind of blending station thermal insulation construction technique | |
| CN103836950A (en) | Efficient solid electric energy storage furnace | |
| CN207797200U (en) | Energy-saving ground heating system | |
| CN103791726A (en) | Cement kiln grate cooler toe wall structure capable of saving energy | |
| CN107806760A (en) | Annular full automatic control de-waxing energy-conserving and environment-protective tunnel cave | |
| CN105888267B (en) | Skyscraper teletostage construction method based on the maintenance of hot-water coil pipe automatic heating | |
| CN108115841A (en) | Concrete mixing station aggregate heating means | |
| CN103898263B (en) | Hot air duct premixer refractory brick come off quick prosthetic appliance and method | |
| CN104226972B (en) | A kind ofly improve building by laying bricks or stones and toasting control mode of torpedo hot metal mixer car tank mouth life-span | |
| CN103805723B (en) | Blast-furnace hot-air pipeline transposition section refractory brick comes off quick prosthetic appliance and method | |
| CN202630688U (en) | Fire-resisting material masonry side wall for drying section of chain grate machine | |
| CN207019466U (en) | A kind of package tunnel kiln | |
| CN110370452A (en) | A kind of concrete mixing station heating heat preserving method | |
| CN203866243U (en) | High-temperature-resistant expansion joint for dry quenching | |
| CN217403172U (en) | Kiln waste heat boils brick system | |
| KR101576853B1 (en) | Method for curing concrete in winter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |