CN113213337A - High-altitude translation construction method for overweight furnace shell of large blast furnace - Google Patents
High-altitude translation construction method for overweight furnace shell of large blast furnace Download PDFInfo
- Publication number
- CN113213337A CN113213337A CN202110381932.5A CN202110381932A CN113213337A CN 113213337 A CN113213337 A CN 113213337A CN 202110381932 A CN202110381932 A CN 202110381932A CN 113213337 A CN113213337 A CN 113213337A
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- Prior art keywords
- furnace shell
- translation
- lifting
- furnace
- moving vehicle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/04—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
- B66C13/08—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for depositing loads in desired attitudes or positions
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C15/00—Safety gear
Abstract
The application relates to the technical field of blast furnace construction, in particular to a high-altitude translation construction method for an overweight furnace shell of a large blast furnace, which comprises the following steps: a. cleaning a construction site, establishing a construction warning board, surveying the construction site, and constructing a construction foundation at a specified position; b. mounting construction drawings to build a mounting rail, a translation rail and a lifting rail; c. installing hoisting equipment on the installation track, installing traction equipment on the translation track, and installing lifting equipment on the lifting track; d. assembling a furnace shell at a designated position by a worker; e. the furnace shell is lifted by using the lifting device, then placed on the translation rail, translated to the mounting position by using the traction device, and then mounted to the designated position by using the hoisting device. This application has the effect that makes things convenient for the staff to lift by crane and remove the stove outer covering, reduces the staff and changes the degree of difficulty of stove outer covering.
Description
Technical Field
The application relates to the technical field of blast furnace construction, in particular to a high-altitude translation construction method for an overweight furnace shell of a large blast furnace.
Background
The blast furnace uses steel plate as furnace shell, and refractory brick lining is built in the shell. The blast furnace body is divided into a furnace throat, a furnace body, a furnace waist, a furnace belly and a furnace hearth 5 from top to bottom. Because the blast furnace body is in a high-temperature environment for a long time, furnace shells at the furnace bosh and the furnace hearth are easy to damage. Each blast furnace is therefore essentially subjected to minor, intermediate and major repair stages. Blast furnace overhaul generally is that the shaft frame is motionless, changes the stove outer covering, but the stove outer covering weight among the correlation technique is great, when changing the stove outer covering, and it is higher to remove the stove outer covering degree of difficulty, leads to changing the stove outer covering comparatively difficultly.
Disclosure of Invention
In order to facilitate the movement of the furnace shell when workers replace the furnace shell, the application provides a high-altitude translation construction method for the overweight furnace shell of the large blast furnace.
The application provides a construction method for high-altitude translation of a large-scale blast furnace overweight furnace shell, which adopts the following technical scheme:
a construction method for high-altitude translation of a large-scale blast furnace overweight furnace shell comprises the following steps:
a. cleaning a construction site, establishing a construction warning board, surveying the construction site, and constructing a construction foundation at a specified position;
b. mounting construction drawings to build a mounting rail, a translation rail and a lifting rail;
c. installing hoisting equipment on the installation track, installing traction equipment on the translation track, and installing lifting equipment on the lifting track;
d. assembling a furnace shell at a designated position by a worker;
e. the furnace shell is lifted by using the lifting device, then placed on the translation rail, translated to the mounting position by using the traction device, and then mounted to the designated position by using the hoisting device.
Through adopting above-mentioned technical scheme, the staff stands warning sign near the construction site earlier before the construction for warning passerby through, remind passerby to notice safety, later the staff lays the basis according to the construction requirement, builds needs track and equipment, is used for lifting by crane and removes the stove outer covering, thereby makes things convenient for the staff to lift by crane and remove the stove outer covering, reduces the degree of difficulty that the staff changed the stove outer covering.
Optionally, in the step b, when the worker translates the rail, the roof of the iron yard is modified according to the construction requirement, so that the worker can conveniently move the furnace shell.
Through adopting above-mentioned technical scheme, the staff reforms transform the iron yard house according to the construction drawing, makes things convenient for the staff to build and removes the track, avoids appearing iron yard house and interferes the staff and remove the stove outer covering, makes the staff conveniently remove the stove outer covering smoothly more.
Optionally, in the step b, the installation rails are built inside the iron yard, the installation rails are built around the installation position of the furnace shell, the lifting rails are located outside the iron yard, the translation rails are horizontally arranged, the lifting rails and the installation rails are perpendicular to the translation rails, and the translation rails and the lifting rails are respectively arranged at two ends of the translation rails.
Through adopting above-mentioned technical scheme, set the translation track to the level, the staff can reduce the altitude variation of stove outer covering when the translation stove outer covering, make the stove outer covering remove more steady, set the bearing capacity that vertical can improve the mounting track and lift track with mounting track and lift track.
Optionally, in the step b, a lifting seat is installed on the lifting rail, a moving vehicle is installed on the lifting seat, the moving vehicle is matched with the translation rail, and the traction equipment can pull the moving vehicle to move along the translation rail.
Optionally, in the step d, when the worker assembles the furnace shell, the worker assembles the furnace shell on the moving vehicle.
Through adopting above-mentioned technical scheme, the staff directly assembles the stove outer covering on the locomotive when assembling the stove outer covering, and the staff need not hoist and mount the stove outer covering of assembling on the locomotive again, has simplified the step of staff's hoist and mount stove outer covering, has reduced work load, has improved the efficiency of construction.
Optionally, in the step e, the lifting device lifts the lifting seat together with the moving vehicle and the furnace shell on the moving vehicle, the lifting device keeps the height of the moving vehicle the same as that of the translation rail, then the worker connects the traction device with the moving vehicle, the traction device pulls the moving vehicle onto the translation rail, and pulls the moving vehicle together with the furnace shell to the upper side of the installation position.
Optionally, in the step e, before the lifting mechanism lifts the lifting seat, the worker fixes the furnace shell on the moving vehicle, fixes the moving vehicle on the lifting seat, and releases the moving vehicle when the lifting device lifts the moving vehicle to a specified height.
Through adopting above-mentioned technical scheme, the staff uses jacking equipment to rise the lift seat after stove outer covering and locomotive are fixed, at the in-process that the lift seat removed, removes automobile body and stove outer covering and can not take place to remove, has reduced the risk that the stove outer covering emptys, has improved the security of construction.
Optionally, in the step e, after the moving vehicle moves to the position above the installation position, the worker releases the furnace shell, the hoisting device is used to hoist the furnace shell, then the worker pulls the device and the moving vehicle to separate, the moving vehicle is moved away, and the hoisting device is used to place the furnace shell at the specified position and install the furnace shell.
Optionally, when the furnace shell is lifted by using the lifting device, a plurality of ropes are fixed around the furnace shell by a worker, and the ropes are manually tensioned when the furnace shell is lifted.
Through adopting above-mentioned technical scheme, when lifting by crane equipment and putting down the stove outer covering, the staff can use the taut stove outer covering of rope to reduce the stove outer covering and rock aloft, improve the stability of stove outer covering, further improve the security of construction, in the work progress, the staff can be along with the length and the angle of the altitude variation adjustment rope of stove outer covering, more nimble.
Optionally, when the distance from the lower part of the furnace shell to the designated position is short, the speed of the lower part of the furnace shell is slowed down, and the position of the furnace shell is adjusted by a worker through a rope.
Through adopting above-mentioned technical scheme, when the stove outer covering is nearer apart from the assigned position, the falling speed that slows down can provide time for the position of staff's adjustment stove outer covering to make the stove outer covering installation more accurate.
In summary, the present application includes at least one of the following beneficial technical effects:
1. before construction, workers erect warning boards near a construction site for warning passers-by and reminding the passers-by to pay attention to safety, and then the workers lay foundations according to construction requirements, build required rails and equipment for lifting and moving a furnace shell, so that the workers can conveniently lift and move the furnace shell, and the difficulty of replacing the furnace shell by the workers is reduced;
2. workers reform the iron yard house according to the construction drawing, so that the workers can conveniently build a moving track, the interference of the iron yard house on the workers in moving the furnace shell is avoided, and the workers can more conveniently and smoothly move the furnace shell; when the furnace shell is assembled by a worker, the furnace shell is directly assembled on the moving vehicle, and the worker does not need to hoist the assembled furnace shell on the moving vehicle, so that the step of hoisting the furnace shell by the worker is simplified, the workload is reduced, and the construction efficiency is improved;
3. after the furnace shell and the moving vehicle are fixed, the worker uses the lifting equipment to lift the lifting seat, and the moving vehicle body and the furnace shell cannot move in the process of moving the lifting seat, so that the risk of toppling the furnace shell is reduced, and the construction safety is improved; when the lifting equipment puts down the furnace shell, the staff can use the rope to strain the furnace shell, thereby reducing the rocking of the furnace shell in the air, improving the stability of the furnace shell, further improving the safety of construction, and in the construction process, the staff can adjust the length and the angle of the rope along with the height change of the furnace shell, and is more flexible.
Drawings
FIG. 1 is a schematic construction flow diagram according to an embodiment of the present application.
Detailed Description
The present application is described in further detail below with reference to fig. 1.
The embodiment of the application discloses a construction method for high-altitude translation of an overweight furnace shell of a large blast furnace. Referring to fig. 1, a construction method for high-altitude translation of an overweight furnace shell of a large blast furnace comprises the following steps:
a. cleaning a construction site, establishing a construction warning board, surveying the construction site, and constructing a construction foundation at a specified position; the staff plan the construction site earlier before using, then plans safe district around the construction site to carry and establish the warning sign, avoid near passerby mistake that passes by to go into the construction site, protect passerby's safety, also guarantee simultaneously that the construction can go on smoothly.
b. Mounting construction drawings to build a mounting rail, a translation rail and a lifting rail; before a worker builds the installation rail, the translation rail and the lifting rail, the iron yard house is firstly transformed according to a construction drawing and the actual condition of the iron yard house, so that the iron yard house is prevented from interfering the subsequent construction of the movable furnace shell, and the construction of the worker is facilitated; when the staff builds the mounting rail, build the inside of iron yard and build around the installation stove outer covering assigned position with the mounting rail, will go up and down the rail mounting in the outside of iron yard. The mounting rail and the lifting rail are all vertically built, one end of the translation rail is connected with the mounting rail, the other end of the translation rail is connected with the lifting rail, and the translation rail is horizontally arranged. The installation track is located the inside in iron yard house, and the lift track is located the outside in iron yard house.
c. Installing hoisting equipment on the installation track, installing traction equipment on the translation track, and installing lifting equipment on the lifting track; after the installation rail, the translation rail and the lifting rail are built by workers, the workers install lifting equipment above the installation rail, traction equipment is installed on the translation rail, and lifting equipment is installed on the lifting rail. Install the lift seat on the lift track, placed the locomotive on the lift seat, jacking equipment can promote the lift seat. The locomotive can with translation track adaptation, traction equipment can be connected with the locomotive, pull the locomotive and move on translation track.
d. Assembling a furnace shell at a designated position by a worker; when assembling the furnace shell, a worker firstly fixes the moving vehicle on the lifting seat, then uses the crane to assemble the furnace shell on the moving vehicle, and fixes the furnace shell on the moving vehicle.
e. The furnace shell is lifted by using the lifting device, then placed on the translation rail, translated to the mounting position by using the traction device, and then mounted to the designated position by using the hoisting device.
The hoisting equipment is a crown block arranged on the roof of the iron yard, and a crane is arranged on the crown block; the lifting equipment comprises a band-type brake motor, a chain wheel and a chain, and a power output shaft of the band-type brake motor can drive the chain and the chain wheel to drive the lifting seat to ascend and descend; traction mechanism is second motor drive wind-up roll, and the winding roll goes up the winding and has the haulage rope, and the staff can be fixed the haulage rope to the locomotive on. The lifting seat, the locomotive and the furnace shell are driven to ascend through the first motor by workers, when the height of the locomotive is the same as the height of the translation rail, the workers control the height of the brake motor to fix the lifting seat, then the traction rope is fixed on the locomotive, the locomotive is loosened, the second motor is started, and the second motor pulls the locomotive to move along the translation rail through the winding roller and the traction rope.
When the locomotive drives the stove outer covering and moves the top to the assigned position, the staff parts stove outer covering and locomotive, later uses four ropes to fix four positions on the stove outer covering, then from taut rope in four directions, later the staff uses the overhead traveling crane to hoist the stove outer covering slightly, loosens the haulage rope, and the staff pushes away the locomotive.
The staff passes through the rope and can improve the stability of stove outer covering, reduces rocking of stove outer covering at the lift in-process, reduces the stove outer covering and takes place to collide with impaired, and the protection stove outer covering also protects staff's safety simultaneously, has improved the security of construction. In the process of lowering the furnace shell by the overhead travelling crane, the staff tenses the rope constantly, so that the shaking of the furnace shell is reduced. When the furnace shell is close to the installation position, the worker controls the crown block to slow down the descending speed of the furnace shell, and then the worker adjusts the position and the angle of the furnace shell by tightening or loosening the four ropes, and finally the furnace shell is installed at the specified position.
Because the stove outer covering is heavier, the staff fixes the locomotive on the seat that goes up and down earlier, and later the staff assembles the stove outer covering on the locomotive according to the installation angle of stove outer covering, and later the locomotive that the staff will be fixed relatively with the stove outer covering. Later the staff drives elevating system, and elevating system lifting seat, when the height of locomotive is the same with the translation track, the staff loosens the locomotive, and later the staff is connected drive mechanism and locomotive, uses drive mechanism to pull the locomotive to the translation track on to make locomotive and stove outer covering remove along the translation track.
When the stove outer covering and the locomotive move to the top of mounted position, locomotive and stove outer covering just in time are located the orbital tip of translation, and the staff uses the equipment of lifting by crane this moment to connect the stove outer covering, and later the stove outer covering that the staff will and the locomotive separation, then use the equipment of lifting by crane to slightly lift, move the locomotive away, later the staff uses four ropes to tie up respectively on four directions of stove outer covering, and later the staff makes taut four ropes, fixes the stove outer covering. And then the furnace shell is gradually put down by a worker through the hoisting equipment.
The staff uses the fixed stove outer covering of rope can reduce rocking of stove outer covering, avoids the stove outer covering and bumps all around, protects the stove outer covering, also protects near staff simultaneously, and when the stove outer covering was nearer apart from the mounted position at last, the staff slowed down the falling speed of stove outer covering, used the position and the angle of rope adjustment stove outer covering to make the more accurate of stove outer covering installation.
The implementation principle of the embodiment of the application is as follows: the staff reforms transform the iron yard house through the construction drawing, builds construction facilities, and the staff changes the height of stove outer covering through lifting by crane equipment and jacking equipment, changes the horizontal position of stove outer covering through traction equipment, when the overhead traveling crane lifted by crane or transferred the stove outer covering, uses the rope to pull the stove outer covering, reduces rocking of stove outer covering, improves the stability of stove outer covering, improves the security of construction.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (10)
1. A high-altitude translation construction method for an overweight furnace shell of a large blast furnace is characterized by comprising the following steps: the method comprises the following steps:
a. cleaning a construction site, establishing a construction warning board, surveying the construction site, and constructing a construction foundation at a specified position;
b. mounting construction drawings to build a mounting rail, a translation rail and a lifting rail;
c. installing hoisting equipment on the installation track, installing traction equipment on the translation track, and installing lifting equipment on the lifting track;
d. assembling a furnace shell at a designated position by a worker;
e. the furnace shell is lifted by using the lifting device, then placed on the translation rail, translated to the mounting position by using the traction device, and then mounted to the designated position by using the hoisting device.
2. The high-altitude translation construction method for the overweight furnace shell of the large-scale blast furnace as claimed in claim 1, characterized in that: in the step b, when the worker translates the rail, the roof of the iron yard is reformed according to the construction requirement, so that the worker can conveniently move the furnace shell.
3. The high-altitude translation construction method for the overweight furnace shell of the large-scale blast furnace as claimed in claim 2, characterized in that: in the step b, the installation rails are built inside the iron yard, the installation rails are built around the installation positions of the furnace shell, the lifting rails are located outside the iron yard, the translation rails are horizontally arranged, the lifting rails and the installation rails are perpendicular to the translation rails, and the translation rails and the lifting rails are respectively arranged at two ends of the translation rails.
4. The high-altitude translation construction method for the overweight furnace shell of the large-scale blast furnace as claimed in claim 3, characterized in that: in the step b, a lifting seat is installed on the lifting track, a moving vehicle is installed on the lifting seat, the moving vehicle is matched with the translation track, and the traction equipment can pull the moving vehicle to move along the translation track.
5. The high-altitude translation construction method for the overweight furnace shell of the large-scale blast furnace as claimed in claim 4, characterized in that: in the step d, when assembling the furnace shell, the worker assembles the furnace shell on the moving vehicle.
6. The high-altitude translation construction method for the overweight furnace shell of the large-scale blast furnace as claimed in claim 1, characterized in that: in the step e, the lifting seat, the moving vehicle and the furnace shell on the moving vehicle are lifted by the lifting device, the height of the moving vehicle is kept to be the same as that of the translation rail by the lifting device, then the worker connects the traction device with the moving vehicle, the traction device pulls the moving vehicle to the translation rail, and the moving vehicle and the furnace shell are pulled to the upper side of the installation position.
7. The high-altitude translation construction method for the overweight furnace shell of the large-scale blast furnace as claimed in claim 6, characterized in that: in the step e, before the lifting mechanism lifts the lifting seat, the worker fixes the furnace shell on the moving vehicle and fixes the moving vehicle on the lifting seat, and when the lifting device lifts the moving vehicle to a specified height, the worker releases the moving vehicle.
8. The high-altitude translation construction method for the overweight furnace shell of the large-scale blast furnace as claimed in claim 6, characterized in that: in the step e, after the movable vehicle moves to the upper side of the installation position, the worker releases the furnace shell, the hoisting equipment is used for hoisting the furnace shell, then the worker pulls the equipment to be separated from the movable vehicle, the movable vehicle is moved away, and the hoisting equipment is used for placing the furnace shell to the specified position and installing the furnace shell.
9. The high-altitude translation construction method for the overweight furnace shell of the large-scale blast furnace as claimed in claim 8, characterized in that: when the hoisting equipment is used for hoisting the furnace shell, a plurality of ropes are fixed around the furnace shell by workers, and the ropes are manually tensioned when the furnace shell is hoisted.
10. The high-altitude translation construction method for the overweight furnace shell of the large-scale blast furnace as claimed in claim 9, characterized in that: when the distance from the lower part of the furnace shell to the designated position is short, the speed of the lower part of the furnace shell is slowed down, and the position of the furnace shell is adjusted by a worker through a rope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110381932.5A CN113213337A (en) | 2021-04-09 | 2021-04-09 | High-altitude translation construction method for overweight furnace shell of large blast furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110381932.5A CN113213337A (en) | 2021-04-09 | 2021-04-09 | High-altitude translation construction method for overweight furnace shell of large blast furnace |
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| CN113213337A true CN113213337A (en) | 2021-08-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110381932.5A Pending CN113213337A (en) | 2021-04-09 | 2021-04-09 | High-altitude translation construction method for overweight furnace shell of large blast furnace |
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| CN (1) | CN113213337A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007126708A (en) * | 2005-11-02 | 2007-05-24 | Jfe Steel Kk | Method for overhauling and constructing blast furnace |
| CN102146488A (en) * | 2010-02-09 | 2011-08-10 | 上海宝冶建设有限公司 | Modularized and integrative disassembling and installing methods for blast furnace |
| CN109097516A (en) * | 2018-09-29 | 2018-12-28 | 中国冶集团有限公司 | The construction method of blast furnace overhaul engineering replacement last furnace shell |
-
2021
- 2021-04-09 CN CN202110381932.5A patent/CN113213337A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007126708A (en) * | 2005-11-02 | 2007-05-24 | Jfe Steel Kk | Method for overhauling and constructing blast furnace |
| CN102146488A (en) * | 2010-02-09 | 2011-08-10 | 上海宝冶建设有限公司 | Modularized and integrative disassembling and installing methods for blast furnace |
| CN109097516A (en) * | 2018-09-29 | 2018-12-28 | 中国冶集团有限公司 | The construction method of blast furnace overhaul engineering replacement last furnace shell |
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Application publication date: 20210806 |