CN111805150A - Staggered joint prevention device and method for blast furnace shell assembly transverse joint - Google Patents
Staggered joint prevention device and method for blast furnace shell assembly transverse joint Download PDFInfo
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- CN111805150A CN111805150A CN202010755201.8A CN202010755201A CN111805150A CN 111805150 A CN111805150 A CN 111805150A CN 202010755201 A CN202010755201 A CN 202010755201A CN 111805150 A CN111805150 A CN 111805150A
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- furnace shell
- positioner
- stop block
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- positioning stop
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/0426—Fixtures for other work
- B23K37/0435—Clamps
- B23K37/0443—Jigs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
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- Optics & Photonics (AREA)
- Blast Furnaces (AREA)
Abstract
The invention discloses a device and a method for preventing cross joint dislocation of a blast furnace shell assembly, and belongs to the technical field of positioning of blast furnace shell joints in an iron-making system. The device comprises a positioning stop block, a positioner and a baffle plate, wherein the positioning stop block is arranged on a lower belt furnace shell, and the baffle plate is arranged at a corresponding position of an upper belt furnace shell to limit the moving distance of the positioner; the positioner is made of two steel wedges with smooth inclined surfaces, can move mutually, can tightly support the furnace shell and the positioning stop block when the inclined surfaces are completely contacted, sequentially inserts the steel wedges into the positioning stop block, knocks the steel wedges, can enable the steel wedges to be gradually tightly supported with the furnace shell, pushes the upper furnace shell exceeding the position of the lower furnace shell to a normal position by means of the rigidity of the upper furnace shell and the lower furnace shell, enables the transverse seams of the upper furnace shell and the lower furnace shell to be aligned, and facilitates subsequent welding; the plurality of the staggered opening preventing devices are arranged along the circumferential direction of the furnace shell, the parts of the staggered opening preventing devices, which exceed the edge of the lower belt, can be pushed to a normal position, and the other side of the staggered opening preventing devices cannot cause the furnace shell to be pushed excessively due to the existence of the positioner.
Description
Technical Field
The invention belongs to the technical field of positioning of seams of blast furnace shells in an iron-making system, and particularly relates to a device and a method for preventing staggered joints of transverse seams of a blast furnace shell assembly.
Background
The blast furnace shell plays an extremely important role as an important component of a blast furnace body. In the blast furnace installation project of an iron-making system in the metallurgical industry, a blast furnace shell is usually manufactured into sheets in a factory and then transported to a construction site, and then the sheet shell is assembled on an assembly platform and then hoisted for installation.
The accurate location, the welding of blast furnace shell influence the installation of blast furnace body and production combustion efficiency. The blast furnace stove outer covering is from great and the shell is thick, and the blast furnace stove outer covering at first can carry out the longitudinal joint welding, carries out the transversal joint welding again after the welding is accomplished, and the weight of the stove outer covering further increases this moment, makes to carry out the degree of difficulty increase of group, if take place the dislocation from top to bottom, then the welding can't be accomplished, must move the upper band stove outer covering once more for smooth group welding, it wastes time and energy to move the process, has the potential safety hazard, is unfavorable for going on of follow-up process.
Through search, the Chinese patent application No. 2016105591878, the invention and creation name is: a blast furnace body pre-assembly process is disclosed as 2016, 9, 28 and includes the steps that a temporary pre-assembly platform is erected in different places, furnace shells prepared by lower material rolls are assembled in a band-by-band mode and welded, 13 furnace shells are assembled into six sections of furnace shells, each section of furnace shells are assembled in a welding mode, a blast furnace center point and a center line are arranged on the upper side of the temporary pre-assembly platform, then a furnace shell support is erected on the temporary platform to assemble the furnace shells, after the furnace shells are assembled in a pre-mode, water cooling pipes are welded on the furnace shells, tapholes are formed on the furnace shells and riveted, temporary supports are installed on the furnace shells, and hot air surrounding pipes are assembled and welded; then, a cooling wall and a furnace throat steel brick are pre-installed, the pre-assembled sixth furnace shell is detached, and then the ascending pipe is reinforced and welded. However, in the application, the positioning pin adopted in the furnace shell group time setting is composed of a groove and a bump, and the edges of the upper furnace shell and the lower furnace shell can be smoothly installed only by the shape correspondence; in addition, after the furnace shells are successfully assembled, the edges of the upper furnace shell and the lower furnace shell are still not corresponding, so that the furnace shells are inconvenient to weld.
Disclosure of Invention
1. Technical problem to be solved by the invention
In order to solve the problems that a furnace shell subjected to longitudinal seam assembly is thick and heavy and then transverse seam assembly is difficult, the invention aims to provide a device and a method for preventing staggered joints of transverse seams of blast furnace shell assembly, which are simple to operate, convenient and reliable to use, high in applicability, capable of reducing construction cost and unsafe factors and capable of improving construction quality and construction efficiency.
2. Technical scheme
The invention discloses a blast furnace shell assembly cross joint anti-staggered device which comprises a positioning stop block and a positioner, wherein the positioning stop block is fixed on a furnace shell, the positioner is inserted into the positioning stop block, one section of the positioner is contacted with the furnace shell of a lower belt, the other section of the positioner is contacted with the furnace shell of an upper belt, and the upper furnace shell and the lower furnace shell can be horizontally consistent with the surface of the positioner by virtue of self rigidity.
As a further improvement of the invention, the positioner comprises two steel wedges which are inserted into the positioning block in a staggered manner, and the contact surfaces of the two steel wedges are smooth and can move relatively.
As a further improvement of the invention, the cross section of the steel wedge is in a right trapezoid shape, the inclined surfaces of the two steel wedges are contacted to form a rectangle integrally, and the steel wedge can stably stay in the positioning block under the extrusion of the furnace shell and the positioning block.
As a further improvement of the invention, a baffle is welded at the lower edge of the furnace shell of the upper belt, the position of the baffle corresponds to the position of the positioning stop block, and the positioner can be resisted by the baffle when the positioner moves relatively in the positioning stop block.
As a further improvement of the invention, the cross section of the positioning stop block is an isosceles right triangle.
As a further improvement of the invention, the combination of the positioning stop blocks and the positioning devices is provided with a plurality of groups which are distributed at equal intervals in the circumferential direction of the furnace shell.
As a further improvement of the invention, the positioning stop block is made of angle steel; the steel wedge is formed by cutting and planing a steel plate; the baffle is made of steel plates.
The invention discloses a method for preventing staggered joints of transverse seams of a blast furnace shell assembly, which comprises the following steps of:
step one, hoisting an upper belt furnace shell, and welding a baffle at a position corresponding to a positioning stop block;
step two, inserting the first steel wedge into the positioning stop block;
inserting the thinner end of a second steel wedge between the first steel wedge and a positioning block from bottom to top to enable the two steel wedges to be in contact with each other and to be abutted against each other under the action of the positioning block;
and fourthly, knocking the second steel wedge until the two steel wedges are fully contacted, and abutting the upper belt furnace shell to a position consistent with the lower belt furnace shell.
3. Advantageous effects
Compared with the prior art, the technical scheme provided by the invention has the following remarkable effects:
(1) according to the device for preventing the cross joint from being staggered for the furnace shell group of the blast furnace, the positioning stop blocks are arranged on the circumferential direction of the furnace shell, the positioner is arranged in the positioning stop blocks in a knocking mode, the rigidity of the positioner is utilized, the upper furnace shell exceeding the position of the lower furnace shell can be pushed to a normal position, the cross joints of the upper furnace shell and the lower furnace shell are aligned, and subsequent welding is facilitated.
(2) According to the device for preventing the cross joint from being staggered for the blast furnace shell assembly, the baffle plate is arranged at the corresponding position of the upper-belt furnace shell, so that the end head of the positioner cannot be knocked into the positioning stop block or knocked out of the range of the positioning stop block when being knocked and moved, workers do not need to manually abut against the positioner, and the device is labor-saving and stable.
(3) According to the method for preventing the staggered joint of the blast furnace shell assembly cross joint, the positioner arranged on the furnace shell on the other side of the pushing side can prevent the furnace shell from being pushed excessively, the staggered joint on the other side cannot be caused, the alignment degree of the cross joint of the upper furnace shell and the lower furnace shell is ensured, and the construction quality is ensured. Moreover, when the positioning block is tightly abutted against the furnace shell, the micro-deformation of the furnace shell can be corrected, so that the upper furnace shell and the lower furnace shell are smoother, the welding is convenient, and the construction quality is improved.
Drawings
FIG. 1 is a schematic elevation view of a cross joint anti-stagger device for assembling a blast furnace shell to a cross joint according to the present invention;
FIG. 2 is a schematic top view of a cross joint anti-stagger device for assembling a furnace shell of a blast furnace according to the present invention;
FIG. 3 is a schematic view of the positioner of the present invention.
The reference numerals in the schematic drawings illustrate:
1. a furnace shell; 2. a positioner; 3. and positioning the stop block.
Detailed Description
For a further understanding of the invention, reference should be made to the following detailed description taken in conjunction with the accompanying drawings and examples.
Example 1
With reference to fig. 1 and 2, the blast furnace shell assembly cross seam anti-gap device of the present embodiment includes a positioning stop block 3, a positioner 2 and a baffle, the positioning stop block 3 is fixed on the furnace shell 1, the positioner 2 is inserted into the positioning stop block 3, one section of the positioner is in contact with the furnace shell 1 of the lower belt, the other section of the positioner is in contact with the furnace shell 1 of the upper belt, and the surfaces of the upper and lower furnace shells 1 and the positioner 2 are horizontally consistent with each other by virtue of the rigidity of the positioner; the baffle is made of steel plates and is arranged on the furnace shell 1 of the upper belt, and the installation position of the baffle corresponds to the position of the positioning stop block 3. In order to correct all seams of the furnace shell 1, the edge of the furnace shell 1 is equally divided into 8 points along the circumference, and an anti-dislocation device is arranged at the equally divided points.
Referring to fig. 3, the positioner 2 comprises two steel wedges, the steel wedges are formed by cutting and planing steel plates, the cross sections of the steel wedges are in a right trapezoid shape, the two steel wedges are staggered, and the inclined surfaces of the two steel wedges are in contact with each other and smooth, so that the two steel wedges can move relatively; the positioner 2 formed when the inclined planes of the two steel wedges are completely contacted is a cuboid.
Utilize the rigidity of locator 2 self, can push away the upper band stove outer covering 1 that surpasss lower band stove outer covering 1 position to normal position, make the horizontal seam of upper and lower band stove outer covering 1 align, make things convenient for subsequent welding. In addition, the existence of baffle makes the end of locator 2 not be knocked into in locating stop 3 when being strikeed the removal, or be knocked out the scope of locating stop 3, and need not the workman and support locator 2 manually, laborsaving and stable.
Example 2
The method for preventing the staggered joint of the transverse seam of the blast furnace shell assembly in the embodiment utilizes the staggered joint preventing device in the embodiment 1, and comprises the following specific steps:
step one, arranging a group assembly mould on site, leveling the mould, hoisting an upper furnace shell 1 to a lower furnace shell 1, and aligning the edges of the upper furnace shell and the lower furnace shell basically; welding a baffle plate at the position corresponding to the positioning stop block 3;
step two, inserting the first steel wedge into the positioning block 3;
inserting the thinner end of a second steel wedge between the first steel wedge and the positioning block 3 from bottom to top to enable the two steel wedges to be in contact with each other and to be abutted against each other under the action of the positioning block 3;
and fourthly, knocking a second steel wedge, wherein the second steel wedge can continuously move forward along the inclined plane of the first steel wedge until the two steel wedges are fully contacted, and the positioner 2 is tightly inserted into the positioning stop block 3 and is attached to the furnace shell 1. Because the locator 2 still partly supports in the upper band stove outer covering 1 outside, utilize the intensity of locator 2 self, when locator 2 closely laminated the stove outer covering 1 of lower band, will drive the lower limb of upper band stove outer covering 1 and remove, make the edge of two upper and lower stove outer covering 1 align, realize rectifying a deviation a little to the horizontal seam stagger, weld again after rectifying a deviation and accomplishing.
When the method of this embodiment is adopted, assuming that the upper belt furnace casing 1 deviates to a certain direction relative to the lower belt furnace casing 1, if the upper belt furnace casing is right side, the left positioner 2 can be installed first, and it stays in the positioning stop block 3 stably under the extrusion of the furnace casing 1 and the positioning stop block 3. At the moment, two steel wedges are sequentially installed on the right side by adopting the method in the fourth step, the upper-belt furnace shell 1 is pushed to move leftwards, so that the transverse seams are aligned, meanwhile, the positioner 2 installed on the left side can prevent the furnace shell 1 from moving excessively, so that the transverse seams of each part of the furnace shell 1 are aligned, and the alignment accuracy is ensured. In addition, when the positioner 2 is tightly abutted against the furnace shell 1, the micro deformation of the furnace shell 1 can be corrected, so that the upper furnace shell 1 and the lower furnace shell 1 are smoother, the welding is convenient, and the construction quality is improved.
The present invention and its embodiments have been described above schematically, without limitation, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching, without departing from the spirit of the invention, the person skilled in the art shall not inventively design the similar structural modes and embodiments to the technical solution, but shall fall within the scope of the invention.
Claims (8)
1. The utility model provides a blast furnace stove outer covering group is to transversal joint mistake proofing mouthful device which characterized in that: the furnace shell positioning device is characterized by comprising a positioning stop block (3) and a positioner (2), wherein the positioning stop block (3) is fixed on a furnace shell (1), the positioner (2) is inserted into the positioning stop block (3), one section of the positioner is contacted with the furnace shell (1) of a lower belt, the other section of the positioner is contacted with the furnace shell (1) of an upper belt, and the upper and lower furnace shells (1) and the surface of the positioner (2) are enabled to be horizontally consistent by virtue of self rigidity.
2. The blast furnace shell group cross joint mistake proofing device of claim 1, characterized in that: the positioner (2) comprises two steel wedges which are inserted into the positioning block (3) in a staggered mode, and the contact surfaces of the two steel wedges are smooth and can move relatively.
3. The blast furnace shell group cross joint mistake proofing device of claim 2, characterized in that: the cross section of the steel wedge is in a right trapezoid shape, the inclined surfaces of the two steel wedges are in contact with each other to form a rectangle integrally, and the steel wedge can stably stay in the positioning stop block (3) under the extrusion of the furnace shell (1) and the positioning stop block (3).
4. The blast furnace shell group cross joint mistake proofing device of claim 3, characterized in that: the lower edge of the furnace shell (1) of the upper belt is also welded with a baffle, the position of the baffle corresponds to that of the positioning stop block (3), and the positioner (2) can be propped against by the baffle when moving relatively in the positioning stop block (3).
5. The blast furnace shell group cross joint mistake proofing device of claim 4, characterized in that: the cross section of the positioning stop block (3) is an isosceles right triangle.
6. The blast furnace shell group cross joint mistake proofing device of claim 5, characterized in that: the combination of the positioning stop blocks (3) and the positioners (2) is provided with a plurality of groups which are distributed in the circumferential direction of the furnace shell (1) at equal intervals.
7. The blast furnace shell group cross joint mistake proofing device of claim 6, characterized in that: the positioning stop block (3) is made of angle steel; the steel wedge is formed by cutting and planing a steel plate; the baffle is made of steel plates.
8. A method for preventing staggered joints of transverse seams of a blast furnace shell group is characterized by comprising the following steps:
step one, hoisting an upper belt furnace shell (1), and welding a baffle at a position corresponding to a positioning stop block (3);
step two, inserting the first steel wedge into the positioning block (3);
inserting the thinner end of a second steel wedge between the first steel wedge and a positioning block (3) from bottom to top to enable the two steel wedges to be in contact with each other and to be abutted against each other under the action of the positioning block (3);
and fourthly, knocking the second steel wedge until the two steel wedges are fully contacted, and abutting the upper belt furnace shell (1) to a position consistent with the lower belt furnace shell (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010755201.8A CN111805150B (en) | 2020-07-31 | 2020-07-31 | Device and method for preventing staggered opening of transverse seam of blast furnace shell assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010755201.8A CN111805150B (en) | 2020-07-31 | 2020-07-31 | Device and method for preventing staggered opening of transverse seam of blast furnace shell assembly |
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| CN111805150A true CN111805150A (en) | 2020-10-23 |
| CN111805150B CN111805150B (en) | 2022-05-03 |
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| CN202010755201.8A Active CN111805150B (en) | 2020-07-31 | 2020-07-31 | Device and method for preventing staggered opening of transverse seam of blast furnace shell assembly |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012102955A (en) * | 2010-11-12 | 2012-05-31 | Chisaki:Kk | Brick supporting structure of vertical furnace |
| CN204111781U (en) * | 2014-09-30 | 2015-01-21 | 武汉钢铁(集团)公司 | Last furnace shell making and installation device |
| CN204511811U (en) * | 2014-12-25 | 2015-07-29 | 重庆汉华汽车零部件制造有限公司 | A kind of Anti-dislocation compound piston ring of compressor |
| CN105665952A (en) * | 2014-11-21 | 2016-06-15 | 中国核工业第五建设有限公司 | Process for assembling module of vapor generator compartment and refueling channel of nuclear power station |
| CN207642615U (en) * | 2017-12-08 | 2018-07-24 | 威克迈动力系统部件（廊坊）有限公司 | A kind of fan-shaped turntable for nut automatic press-riveting equipment |
| CN109048194A (en) * | 2018-09-28 | 2018-12-21 | 北京首钢建设集团有限公司 | A kind of method that pipeline looks for mouth to dock using bquster |
-
2020
- 2020-07-31 CN CN202010755201.8A patent/CN111805150B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012102955A (en) * | 2010-11-12 | 2012-05-31 | Chisaki:Kk | Brick supporting structure of vertical furnace |
| CN204111781U (en) * | 2014-09-30 | 2015-01-21 | 武汉钢铁(集团)公司 | Last furnace shell making and installation device |
| CN105665952A (en) * | 2014-11-21 | 2016-06-15 | 中国核工业第五建设有限公司 | Process for assembling module of vapor generator compartment and refueling channel of nuclear power station |
| CN204511811U (en) * | 2014-12-25 | 2015-07-29 | 重庆汉华汽车零部件制造有限公司 | A kind of Anti-dislocation compound piston ring of compressor |
| CN207642615U (en) * | 2017-12-08 | 2018-07-24 | 威克迈动力系统部件（廊坊）有限公司 | A kind of fan-shaped turntable for nut automatic press-riveting equipment |
| CN109048194A (en) * | 2018-09-28 | 2018-12-21 | 北京首钢建设集团有限公司 | A kind of method that pipeline looks for mouth to dock using bquster |
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| CN111805150B (en) | 2022-05-03 |
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