CN200974744Y - Furnace roof hoisting apparatus for blast furnace heavy maintenance furnace-dismounting self-hoisting construction method - Google Patents
Furnace roof hoisting apparatus for blast furnace heavy maintenance furnace-dismounting self-hoisting construction method Download PDFInfo
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- CN200974744Y CN200974744Y CNU2006201610354U CN200620161035U CN200974744Y CN 200974744 Y CN200974744 Y CN 200974744Y CN U2006201610354 U CNU2006201610354 U CN U2006201610354U CN 200620161035 U CN200620161035 U CN 200620161035U CN 200974744 Y CN200974744 Y CN 200974744Y
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Abstract
The utility model discloses a furnace roof lifting device used to disassemble the furnace body effectively with lifting construction method during the blast furnace overhaul, which relates to the field of blast furnace maintenance technology. The utility model is characterized in that two horizontal trusses 1 suspending from the steel-frame of the furnace body are arranged at one side of the lifting channel of the furnace body 7 located at the 8 part of the furnace roof. A bridge crane is arranged on two horizontal trusses. The bridge crane is used to lift the segmental old furnace body and to lift the segmental new furnace body to the right places. Then the lifting process is accomplished. The utility model has the advantages as follows. The utility model can make full use of the original equipment of the blast furnace, which can accelerate the construction progress, shorten the construction period, ensure the construction quality and reduce the crane machine-team cost and other costs. Direct economic benefit of each blast furnace is more than 6 million Yuan. The utility model can spread to use on the other blast furnaces, which will bring tremendous economic benefit.
Description
Technical field
The utility model discloses in a kind of blast furnace overhaul process the furnace roof hoisting device of using from the lifting construction method of dismounting body of heater.Belong to blast furnace docking facility technical field.
Background technology
Present domestic blast furnace One's name is legion, blast furnace will carry out large repairs every several years, and body of heater is changed.Before the utility model is made, change in the body of heater process, crawler crane or automobile crane are generally adopted in the dismounting construction, carry out the installation lifting operation of parts such as last furnace shell.This traditional construction technology in the blast furnace overhaul process, weight-lifting equipment is subjected to site influence big, and lifting cost is long in time limit with height, lifting.Arrange close quarters in some production technologies, crawler crane or automobile crane can't arrange that lifting speed is slow, the location is inaccurate, cause many original blast furnace facilities effectively to utilize.
Summary of the invention
The utility model is at the problem of prior art, and a kind of furnace roof hoisting device of using from construction method for hanging of efficient blast furnace overhaul dismounting body of heater is provided.
Body of heater described in the utility model from construction method for hanging be:
1, removes the part steel frame of blast furnace one side, form the body of heater hoisting passage;
2, the blast furnace steel frame is reinforced;
3,, lay the horizontal truss of two body of heater steel frames of encorbelmenting, and traverse crane is installed in furnace roof portion body of heater hoisting passage one side;
4, utilize the traverse crane segmental hoisting body of heater that is installed on the horizontal truss, finish the dismounting operation.
The technical characterictic of furnace roof hoisting device described in the utility model is:
1, the horizontal truss of two body of heater steel frames of encorbelmenting that link to each other with blast furnace furnace roof steel frame;
2, place two traverse cranies on the horizontal truss.
Below introduce particular case of the present utility model in detail:
A kind of furnace roof of lifting certainly hoisting device of blast furnace overhaul dismounting body of heater, it is characterized in that comprising the horizontal truss of two body of heater steel frames of encorbelmenting that link to each other with blast furnace furnace roof steel frame, the guide rail of installing on the horizontal truss places traverse crane three parts on the guide rail to form.
Working process of the present utility model is: during dismounting, the traverse crane body of heater of slinging goes out steel frame from the translation of body of heater hoisting passage, is placed on the flatcar and transports; Traverse crane is sling the new body of heater that flatcar ships during installation, advances steel frame from the translation of body of heater hoisting passage, is placed on the body of heater pedestal.
The utility model has the advantages that and effectively to utilize the blast furnace existing facility, accelerated construction speed, shortened the duration, ensured construction quality, reduce crane One-Shift Costs and other expenses, surplus every blast furnace direct economic benefit 600 ten thousand yuan.This equipment can be promoted the use of on other blast furnaces, will produce huge economic benefit.
Description of drawings
Accompanying drawing 1 is the blast furnace steel-frame structure scheme drawing of the utility model dismounting body of heater hoisting passage.The horizontal truss birds-eye view of two body of heater steel frames of encorbelmenting that accompanying drawing 2 blast furnace furnace roofs lay.Among the figure: the horizontal truss of 1-, 2-body of heater steelframe is severed part, 3-23 rice platform, 4-20 rice platform, 5-18 rice platform, 6-30 rice platform, 7-hoisting passage, 8 furnace roofs, the former framework of 9-, the original anchor head hanging beam of 10-.
The specific embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.
Present embodiment is 750M
3Blast furnace be suitable for,
1, sets up one of Q40/10 ton traverse crane at relative level 53.990 platforms, horizontal truss 1 is on-the-spot splicing steel crane beam, and steel material is Q345-C, and section form is an I shape, cross section, last lower flange is 500 mm wides, 25 millimeters thick, and web plate section is 1450 millimeters high, 14 millimeters thick; Vertical support three roads are established in the end, and section form is a bridging, 2 group of 125 * 10 angle steel, and steel material is Q235-B; If horizontal support twice, section form are bridgings, 2 group of 125 * 10 angle steel, steel material is Q235-B; Lay QU70 type track above the horizontal truss 1.See accompanying drawing 2 for details.
2,18.000 meters platform parts of relative level are reinforced footing beam column, replacing section steel landing slab, newly-increased two H steel columns.
3,20.880 meters platform parts of relative level are reinforced footing beam column, newly-increased two H steel columns.
4,23.770 meters platform parts of relative level are reinforced footing beam column, newly-increased four H steel columns, two triangular support.
5, to the newly-increased four H steel columns of 26.250 meters platforms of relative level, two landing beams.Cut off the Vierendeel girder between former high furnace frame B axis Z-1 post and the Z-2 post, form hoisting passage wide 11.4 meters, high 5.35.
6,30.350 meters platform parts of relative level are reinforced footing beam column, newly-increased four H steel columns, two landing beams.Cut off the Vierendeel girder of former high furnace frame B axis, form wide 4 meters hoisting passage.See accompanying drawing 1 for details.
7,38.950 meters platform parts of relative level are reinforced footing beam column, newly-increased four landing beams.Cut off the Vierendeel girder of former high furnace frame B axis, form wide 4 meters hoisting passage.See accompanying drawing 1 for details.
8,43.700 meters platform parts of relative level are reinforced footing beam column, newly-increased six roots of sensation landing beam.Cut off the Vierendeel girder of former high furnace frame B axis, form wide 4 meters hoisting passage.See accompanying drawing 1 for details.
9,47.770 meters platform parts of relative level are reinforced footing beam column, newly-increased six roots of sensation landing beam.Cut off the Vierendeel girder of former high furnace frame B axis, form wide 4 meters hoisting passage.See accompanying drawing 1 for details.
10,53.990 meters platform parts of relative level are reinforced newly-increased two landing beams.
11,57.120 meters furnace roof truss-steel beams of relative level are reinforced.
12, hoisting passage side blast furnace steelframe is reinforced.
13, newly increase 15.01 meters, wide 10 meters right-angled triangle sub-trusses in the blast furnace discharge yard side.
14, newly-increased high 15.01 meters, wide 10 meters right-angled triangle sub-trusses in the blast-furnace hot-air furnace side.
Concrete advantage, characteristics, good effect:
No. 2 750M of our factory
3The blast furnace overhaul engineering because the place is narrow, through repeatedly research discussion, can't adopt the integral translation construction method, can only adopt the conventional approach construction.
The Hoisting Program of conventional construction method when carrying out the furnace shell installation: the general employing hangs in installation in position from the top, needs to remove coal gas rising, downtake, furnace top frame.Because coal gas downtake weight big (more than 100 tons), the middle no strong point must once hang down during dismounting, in conjunction with crane occupy-place position, must adopt 800t and above crane (large-scale tower crane can't be installed because the place is narrow) according to coal gas downtake weight.Needed expense is: lifting cost is with ten thousand yuan (containing a turnover expense) surplus 800; Need replace with riser, downtake (about 150 tons, 245 tons of spray paints), the furnace roof steelframe is not changed, about 150 * (5000+2500) unit/tons of expense+(245 * 2100 yuan/ton+1800 * 610 yuan/sq m)=2,740,000 yuan.Cost ten thousand yuan of usefulness=800+274=1074 altogether.Required expense is bigger.
No. 2 750M
3Adopted " blast furnace overhaul dismounting stove is from construction method for hanging and furnace roof hoisting device " technology in the blast furnace overhaul process: furnace shell hangs in installation in place from a side, be about to the bed rearrangement blast furnace and be divided into 16 bands, take after factory-assembled is finished a band, integral body is transported to the arrangement and method for construction that lifts behind the scene.Like this in the crudy that can guarantee furnace shell, again can accelerating construction progress.Hoisting machine tool has been selected for use crane beam west, State of Blast Furnace top has been delayed, and a 40t driving that newly adds is carried out the hoisted in position of furnace shell by newly adding driving.This has been carried out the reinforcing of furnace roof steelframe, invited the professional certifying agency of Xi'an University of Architecture and Technology that Scheme of Strengthening is identified and provided to the blast furnace steelframe.Required expense is 1,300,000 yuan of (identifying the hardness design executive cost)+400,000 yuan (furnace roof dolly expenses)+3,000,000 yuan of (300t and following crane costs of 300t of alternative 800t crane work, can not use the furnace roof chassis section)=4,700,000 yuan, cost saving 1074-470=604 is surplused ten thousand yuan.Save executive cost greatly, shortened the construction period, ensured construction quality.
Claims (2)
1, a kind of blast furnace overhaul dismounting stove is from lifting construction method furnace roof hoisting device, it is characterized in that comprising the horizontal truss (1) of two body of heater steel frames of encorbelmenting that link to each other with blast furnace furnace roof (8) steel frame, horizontal truss (1) is gone up the guide rail of installing, and places traverse crane three parts on the guide rail to form.
2, blast furnace overhaul dismounting stove according to claim 1 is from lifting construction method furnace roof hoisting device, it is characterized in that horizontal truss (1) is on-the-spot splicing steel crane beam, steel material is Q345-C, section form is an I shape, cross section, last lower flange is 500 mm wides, 25 millimeters thick, and web plate section is 1450 millimeters high, 14 millimeters thick; Vertical support three roads are established in the end, and section form is a bridging, 2 group of 125 * 10 angle steel, and steel material is Q235-B; If horizontal support twice, section form are bridgings, 2 group of 125 * 10 angle steel, steel material is Q235-B; Lay QU70 type track above the horizontal truss (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201610354U CN200974744Y (en) | 2006-12-01 | 2006-12-01 | Furnace roof hoisting apparatus for blast furnace heavy maintenance furnace-dismounting self-hoisting construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201610354U CN200974744Y (en) | 2006-12-01 | 2006-12-01 | Furnace roof hoisting apparatus for blast furnace heavy maintenance furnace-dismounting self-hoisting construction method |
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| Publication Number | Publication Date |
|---|---|
| CN200974744Y true CN200974744Y (en) | 2007-11-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006201610354U Expired - Lifetime CN200974744Y (en) | 2006-12-01 | 2006-12-01 | Furnace roof hoisting apparatus for blast furnace heavy maintenance furnace-dismounting self-hoisting construction method |
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| Country | Link |
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| CN (1) | CN200974744Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110171768A (en) * | 2019-05-10 | 2019-08-27 | 广州西南交大研究院有限公司 | A kind of derrick tower and the crossing construction safeguard containing it |
-
2006
- 2006-12-01 CN CNU2006201610354U patent/CN200974744Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110171768A (en) * | 2019-05-10 | 2019-08-27 | 广州西南交大研究院有限公司 | A kind of derrick tower and the crossing construction safeguard containing it |
| CN110171768B (en) * | 2019-05-10 | 2024-05-03 | 广州西南交大研究院有限公司 | Truss tower and crossing construction protection equipment comprising same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20090422 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |