CN109735671A - Three layers of operational method of one are dismounted in the furnace of medium and small blast furnace - Google Patents
Three layers of operational method of one are dismounted in the furnace of medium and small blast furnace Download PDFInfo
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- CN109735671A CN109735671A CN201910151532.8A CN201910151532A CN109735671A CN 109735671 A CN109735671 A CN 109735671A CN 201910151532 A CN201910151532 A CN 201910151532A CN 109735671 A CN109735671 A CN 109735671A
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- hanging scaffold
- furnace
- blast furnace
- cooling wall
- dismounting
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Abstract
Three layers of operational method of one are dismounted in the furnace of specifically a kind of medium and small blast furnace of the present invention；It is characterized in that: including preparation bottom hanging scaffold, middle part hanging scaffold, top hanging scaffold；Blast furnace is reorganized and outfit before being repaired；Bottom hanging scaffold, middle part hanging scaffold, top hanging scaffold are transported in blast furnace in a manner of loose mail；Successively assembled bottom hanging scaffold, middle part hanging scaffold, top hanging scaffold inside；Top hanging scaffold is first fixed below furnace throat clinker tile in accordance with the order from top to bottom, by middle part hanging scaffold motor-driven chain hoist Synchronous lifting to vacant state, bottom hanging scaffold is promoted and is fixed on above the cooling wall of bosh furnace bosh turning point；In bottom, the lower section of hanging scaffold carries out the masonry of the resistance to material in blast furnace bottom；The dismounting of stack stave/plate and the installation of new cooling wall are carried out on the hanging scaffold of middle part；Dismounting and the new clothes of furnace roof steel brick/Technique of Water-cooling Steel Block and furnace roof spray paint are carried out on the hanging scaffold of top；Three layers of operation of one are dismounted in furnace to realize.
Description
Technical field
The present invention relates to the maintenance field of medium and small blast furnace, three layers of operator of one are dismounted in specifically a kind of furnace
Method.
Background technique
Operation is repaired in medium and small blast furnace has the characteristics that short time limit, frequency are high.And the reason of repairing in blast furnace needs, is main
It is various equipment, raw material, caused by operational issue.And if do not repaired to blast furnace, it will lead to production efficiency reduction.And
The replacement for relating generally to ontology furnace lining and cooling equipment is repaired in blast furnace.It repairs often to use in ordinary blast and takes off furnace from top to bottom,
The method newly repaired from bottom to top again, duration are longer.
Summary of the invention
It is an object of the invention to overcome drawbacks described above, providing one kind can be quickly to the method repaired in blast furnace progress.
In order to achieve the above object, the present invention is implemented as follows:
A kind of furnace of medium and small blast furnace is interior to dismount three layers of operational method of one；Including
At the top of the semifixed loose-leaf system in the fixed bottom hanging scaffold in step 1, preparation bottom, the liftable middle part hanging scaffold in middle part, top
Hanging scaffold；
Step 2, blast furnace are reorganized and outfit before being repaired:
Step 2.1, blast furnace stopping；
Step 2.2, residual iron placing；
Cooling wall/plate of the outer urging portion of step 2.3, furnace；
Step 2.4 opens skimming gate；
Step 2.5 removes defective material and cooling wall/plate in furnace；
Step 2.6, pig iron cutting；
Step 2.7, the cleaning of furnace bottom residue defective material；
Step 2.8, drop-bottom replacement/repairing；
Step 2.9, the repairing of bottom furnace shell；
Step 3 transports bottom hanging scaffold, middle part hanging scaffold described in step 1, top hanging scaffold in blast furnace in a manner of loose mail；
Step 4, inside successively assembled bottom hanging scaffold, middle part hanging scaffold, top hanging scaffold；
Top hanging scaffold is first fixed below furnace throat clinker tile by step 5 in accordance with the order from top to bottom, by middle part hanging scaffold electromotive inverted
Bottom hanging scaffold is promoted and is fixed on above the cooling wall of bosh furnace bosh turning point to vacant state by chain Synchronous lifting；
Step 6, construction personnel enter in blast furnace, and in bottom, the lower section of hanging scaffold carries out the masonry of the resistance to material in blast furnace bottom；It is hung at middle part
The dismounting of stack stave/plate and the installation of new cooling wall are carried out on disk；Furnace roof steel brick/Technique of Water-cooling Steel Block is carried out on the hanging scaffold of top
And dismounting and the new clothes of furnace roof spray paint；Three layers of operation of one are dismounted in furnace to realize；
After the resistance to material of step 7, completion furnace throat clinker tile/Technique of Water-cooling Steel Block dismounting and stock gas sealing cover position is removed and is newly sprayed,
Top hanging scaffold is first removed, notices that fragment saves and is used convenient for next time；The installation of shaft position cooling wall/plate is completed, is installed most
After later layer cooling wall/plate, be used as temporary platform using middle part hanging scaffold is fixed, complete the last layer cooling wall and furnace throat clinker tile it
Between castable resistance to material construction, remove middle part hanging scaffold later；It completes the resistance to material of shaft to build, bottom hanging scaffold be decomposed, fragment
It has bad luck outside coming out of the stove, furnace bottom is cleared up, so far, complete to dismount work in the furnace of whole intermediate repairs.
Three layers of operational method of one are dismounted in the furnace of the medium and small blast furnace；
Bottom hanging scaffold be in groined type structure, use section steel manufacture and by bolt it is assembled；
Middle part hanging scaffold is in M shape structure and expires paving pedal；
The bottom of top hanging scaffold is similarly a meter font structure, completely spreads removable cover on the top of rice font structure；M shape structure
Furnace throat clinker tile lower position is fixed on to be connected with furnace shell, removable cover close to gating location loose-leaf as feeding channel.
Three layers of synchronization job of this operational method point, dismounting and installation operation simultaneously, can greatly shorten in intermediate repair furnace
Dismount the duration；Meanwhile this operational method solve cooling wall/plate of part card resistance and be difficult to from outside remove throat armour/
The dismounting problem of Technique of Water-cooling Steel Block, while solving furnace roof spray paint and being difficult to remove the fulcrum problem with spraying application.This operator
Bottom hanging scaffold used in method play full paving security protection, support brick fuel installation annular hang, assists refractory furnace bottom feed etc. it is multiple
Effect；Middle part hanging scaffold plays auxiliary installation and safety protection function；Top hanging scaffold can successively be used for furnace throat and furnace roof position water
The dismounting and installation of device for cooling and resistance to material；Three layers of hanging scaffold in this operational method are convenient to assemble and disassemble, and cost is relatively low, reusable rate
It is high.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of bottom hanging scaffold.
Fig. 2 is the structural schematic diagram of middle part hanging scaffold.
Fig. 3 is the structural schematic diagram of top hanging scaffold.
Specific embodiment
The present invention is further illustrated below by way of specific embodiment.
A kind of furnace of medium and small blast furnace is interior to dismount three layers of operational method of one；Including
At the top of the semifixed loose-leaf system in the fixed bottom hanging scaffold in step 1, preparation bottom, the liftable middle part hanging scaffold in middle part, top
Hanging scaffold；
Step 2, blast furnace are reorganized and outfit before being repaired:
Step 2.1, blast furnace stopping；
Step 2.2, residual iron placing；
Cooling wall/plate of the outer urging portion of step 2.3, furnace；
Step 2.4 opens skimming gate；
Step 2.5 removes defective material and cooling wall/plate in furnace；
Step 2.6, pig iron cutting；
Step 2.7, the cleaning of furnace bottom residue defective material；
Step 2.8, drop-bottom replacement/repairing；
Step 2.9, the repairing of bottom furnace shell；
Step 3 transports bottom hanging scaffold, middle part hanging scaffold described in step 1, top hanging scaffold in blast furnace in a manner of loose mail；
Step 4, successively assembled bottom hanging scaffold, middle part hanging scaffold, top hanging scaffold in furnace；
Top hanging scaffold is first fixed below furnace throat clinker tile by step 5 in accordance with the order from top to bottom, by middle part hanging scaffold electromotive inverted
Bottom hanging scaffold is promoted and is fixed on above the cooling wall of bosh furnace bosh turning point to vacant state by chain Synchronous lifting；
Step 6, construction personnel enter in blast furnace, and in bottom, the lower section of hanging scaffold carries out the masonry of the resistance to material in blast furnace bottom；It is hung at middle part
The dismounting of stack stave/plate and the installation of new cooling wall are carried out on disk；Furnace roof steel brick/Technique of Water-cooling Steel Block is carried out on the hanging scaffold of top
And dismounting and the new clothes of furnace roof spray paint；Three layers of operation of one are dismounted in furnace to realize；
After the resistance to material of step 7, completion furnace throat clinker tile/Technique of Water-cooling Steel Block dismounting and stock gas sealing cover position is removed and is newly sprayed,
Top hanging scaffold is first removed, notices that fragment saves and is used convenient for next time；The installation of shaft position cooling wall/plate is completed, is installed most
After later layer cooling wall/plate, be used as temporary platform using middle part hanging scaffold is fixed, complete the last layer cooling wall and furnace throat clinker tile it
Between castable resistance to material construction, remove middle part hanging scaffold later；It completes the resistance to material of shaft to build, bottom hanging scaffold be decomposed, fragment
It has bad luck outside coming out of the stove, furnace bottom is cleared up, so far, complete to dismount work in the furnace of whole intermediate repairs.
Three layers of operational method of one are dismounted in the furnace of the medium and small blast furnace；
As shown in Figure 1, bottom hanging scaffold 1 be in groined type structure, use section steel manufacture and by bolt it is assembled；
As shown in Fig. 2, middle part hanging scaffold 2 is in M shape structure and expires paving pedal；
As shown in figure 3, the bottom of top hanging scaffold 3 is similarly a meter font structure, removable cover is completely spread on the top of rice font structure；
M shape structure is fixed on furnace throat clinker tile lower position and is connected with furnace shell, removable cover close to gating location loose-leaf as upper
Expect channel.
Three layers of synchronization job of this operational method point, dismounting and installation operation simultaneously, can greatly shorten in intermediate repair furnace
Dismount the duration；Meanwhile this operational method solve cooling wall/plate of part card resistance and be difficult to from outside remove throat armour/
The dismounting problem of Technique of Water-cooling Steel Block, while solving furnace roof spray paint and being difficult to remove the fulcrum problem with spraying application.This operator
Bottom hanging scaffold used in method play full paving security protection, support brick fuel installation annular hang, assists refractory furnace bottom feed etc. it is multiple
Effect；Middle part hanging scaffold plays auxiliary installation and safety protection function；Top hanging scaffold can successively be used for furnace throat and furnace roof position water
The dismounting and installation of device for cooling and resistance to material；Three layers of hanging scaffold in this operational method are convenient to assemble and disassemble, and cost is relatively low, reusable rate
It is high.
Claims (2)
1. dismounting three layers of operational method of one in a kind of furnace of medium and small blast furnace；It is characterized in that: including
At the top of the semifixed loose-leaf system in the fixed bottom hanging scaffold in step 1, preparation bottom, the liftable middle part hanging scaffold in middle part, top
Hanging scaffold；
Step 2, blast furnace are reorganized and outfit before being repaired:
Step 2.1, blast furnace stopping；
Step 2.2, residual iron placing；
Cooling wall/plate of the outer urging portion of step 2.3, furnace；
Step 2.4 opens skimming gate；
Step 2.5 removes defective material and cooling wall/plate in furnace；
Step 2.6, pig iron cutting；
Step 2.7, the cleaning of furnace bottom residue defective material；
Step 2.8, drop-bottom replacement/repairing；
Step 2.9, the repairing of bottom furnace shell；
Step 3 transports bottom hanging scaffold, middle part hanging scaffold described in step 1, top hanging scaffold in blast furnace in a manner of loose mail；
Step 4, inside successively assembled bottom hanging scaffold, middle part hanging scaffold, top hanging scaffold；
Top hanging scaffold is first fixed below furnace throat clinker tile by step 5 in accordance with the order from top to bottom, by middle part hanging scaffold electromotive inverted
Bottom hanging scaffold is promoted and is fixed on above the cooling wall of bosh furnace bosh turning point to vacant state by chain Synchronous lifting；
Step 6, construction personnel enter in blast furnace, and in bottom, the lower section of hanging scaffold carries out the masonry of the resistance to material in blast furnace bottom；It is hung at middle part
The dismounting of stack stave/plate and the installation of new cooling wall are carried out on disk；Furnace roof steel brick/Technique of Water-cooling Steel Block is carried out on the hanging scaffold of top
And dismounting and the new clothes of furnace roof spray paint；Three layers of operation of one are dismounted in furnace to realize；
After the resistance to material of step 7, completion furnace throat clinker tile/Technique of Water-cooling Steel Block dismounting and stock gas sealing cover position is removed and is newly sprayed,
Top hanging scaffold is first removed, notices that fragment saves and is used convenient for next time；The installation of shaft position cooling wall/plate is completed, is installed most
After later layer cooling wall/plate, be used as temporary platform using middle part hanging scaffold is fixed, complete the last layer cooling wall and furnace throat clinker tile it
Between castable resistance to material construction, remove middle part hanging scaffold later；It completes the resistance to material of shaft to build, bottom hanging scaffold be decomposed, fragment
It has bad luck outside coming out of the stove, furnace bottom is cleared up, so far, complete to dismount work in the furnace of whole intermediate repairs.
2. dismounting three layers of operational method of one in the furnace of medium and small blast furnace according to claim 1；It is characterized in that:
Bottom hanging scaffold be in groined type structure, use section steel manufacture and by bolt it is assembled；
Middle part hanging scaffold is in M shape structure and expires paving pedal；
The bottom of top hanging scaffold is similarly a meter font structure, completely spreads removable cover on the top of rice font structure；M shape structure
Furnace throat clinker tile lower position is fixed on to be connected with furnace shell, removable cover close to gating location loose-leaf as feeding channel.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910151532.8A CN109735671A (en) | 2019-02-28 | 2019-02-28 | Three layers of operational method of one are dismounted in the furnace of medium and small blast furnace |
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|---|---|---|---|
| CN201910151532.8A CN109735671A (en) | 2019-02-28 | 2019-02-28 | Three layers of operational method of one are dismounted in the furnace of medium and small blast furnace |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113584243A (en) * | 2021-08-02 | 2021-11-02 | 湖南德尚源耐磨工业有限公司 | Dismounting method for replacing cooling wall of blast furnace body |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101509049A (en) * | 2009-03-27 | 2009-08-19 | 二十三冶建设集团有限公司 | Construction method for internal cooling wall and furnace liner of blast furnace |
| CN102212630A (en) * | 2011-05-23 | 2011-10-12 | 北京首钢建设集团有限公司 | Construction method for replacing cooling wall of blast furnace by utilizing movable hanging scaffold |
| CN102618677A (en) * | 2012-03-21 | 2012-08-01 | 马钢(集团)控股有限公司 | Method for cleaning materials in large-scale blast furnace in overhaul |
| CN105177202A (en) * | 2015-10-22 | 2015-12-23 | 安徽马钢工程技术集团有限公司 | Iron-making blast furnace overhaul method |
-
2019
- 2019-02-28 CN CN201910151532.8A patent/CN109735671A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101509049A (en) * | 2009-03-27 | 2009-08-19 | 二十三冶建设集团有限公司 | Construction method for internal cooling wall and furnace liner of blast furnace |
| CN102212630A (en) * | 2011-05-23 | 2011-10-12 | 北京首钢建设集团有限公司 | Construction method for replacing cooling wall of blast furnace by utilizing movable hanging scaffold |
| CN102618677A (en) * | 2012-03-21 | 2012-08-01 | 马钢(集团)控股有限公司 | Method for cleaning materials in large-scale blast furnace in overhaul |
| CN105177202A (en) * | 2015-10-22 | 2015-12-23 | 安徽马钢工程技术集团有限公司 | Iron-making blast furnace overhaul method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113584243A (en) * | 2021-08-02 | 2021-11-02 | 湖南德尚源耐磨工业有限公司 | Dismounting method for replacing cooling wall of blast furnace body |
| CN113584243B (en) * | 2021-08-02 | 2022-12-27 | 湖南德尚源耐磨工业有限公司 | Dismounting method for replacing cooling wall of blast furnace body |
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Application publication date: 20190510 |