CN110102727B - Installation method for replacing guide rail of fan-shaped section of continuous casting machine - Google Patents
Installation method for replacing guide rail of fan-shaped section of continuous casting machine Download PDFInfo
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- CN110102727B CN110102727B CN201910443517.0A CN201910443517A CN110102727B CN 110102727 B CN110102727 B CN 110102727B CN 201910443517 A CN201910443517 A CN 201910443517A CN 110102727 B CN110102727 B CN 110102727B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/12—Accessories for subsequent treating or working cast stock in situ
Abstract
The invention relates to a method for installing a guide rail for replacing a fan-shaped section of a continuous casting machine, which comprises the following steps: the method comprises the following steps that firstly, upper assemblies of two replacement guide rails which are symmetrical left and right and lower sections of a plurality of replacement guide rails are symmetrically placed respectively, the upper assemblies of the two replacement guide rails which are symmetrical to each other or the lower sections of the replacement guide rails form a group, and the distance between the two replacement guide rails of each group is adjusted to meet the design requirements; step two, connecting and fixing each group of two adjusted replacing guide rails by using a rigid connecting rod; step three, hanging each group of the integrally connected replacement guide rails to an installation position, and welding the replacement guide rails on installation base plates of the wall bodies on two sides after the installation position is adjusted to meet design requirements; and step four, after all welding seams are connected, the rigid connecting rod is dismantled. According to the installation method, only one side of the guide rail is required to be measured to replace the guide rail data when the guide rail is replaced and installed in the sector section, the consumed time is short, meanwhile, the welding deformation of the replaced guide rail is small, and the installation efficiency and the installation quality are improved.
Description
Technical Field
The invention relates to the technical field of metallurgical equipment installation, in particular to a method for installing a guide rail for replacing a fan-shaped section of a continuous casting machine.
Background
The continuous casting machine is convenient to maintain, the fan-shaped section of the continuous casting machine is generally provided with a fan-shaped section replacing guide rail, and when the fan-shaped section is replaced, the special lifting appliance is used for lifting the fan-shaped section and lifting out along the replacing guide rail so as to realize replacement. At present, a large metallurgical continuous casting machine mostly adopts a full-guide-rail type fan-shaped section to replace a guide rail, and when the replacement guide rail is close to the center of an arc, the full-guide-rail type fan-shaped section replacement guide rail is arranged from the radial direction to the vertical direction.
The installation of the guide rail replacement of the fan-shaped section of the continuous casting machine is always the key and difficult point of the continuous casting machine construction, the installation quality of the guide rail replacement directly determines the installation quality of the roller set of the continuous casting machine, and plays a vital role in the smooth passing of a square billet in production through the roller set and the overhauling of the roller set. In the conventional installation method, after a foundation is formed, a measuring instrument is erected on a platform on one side, then a base plate is connected to the side face of a wall, after the installation size of the base plate is checked, a replacement guide rail is connected to the base plate, and the measuring instrument is used again to check the size. And after the replacement guide rail on one side is installed, installing the replacement guide rail on the other side symmetrically. The installation method has the following defects in actual construction: (1) the two replacement guide rails are symmetrically installed, the installation sizes of the two replacement guide rails need to be measured for multiple times, measurement data are more, time consumption is long, and especially, the workload is large due to the fact that a plurality of replacement guide rails exist; (2) after the single replacement guide rail is installed, the relative sizes of the two replacement guide rails need to be adjusted for many times due to connection deformation, so that the whole construction period is greatly increased; (3) the guide rail is adjusted and replaced by high-altitude hoisting operation, the guide rail needs to be hoisted for a long time, the installation difficulty is high, and the danger coefficient is high.
Disclosure of Invention
In view of this, the present invention aims to provide a method for installing a guide rail for replacing a sector section of a continuous casting machine, and aims to solve the technical problems of the prior art that the installation of the guide rail for replacing the sector section of the continuous casting machine has more measurement data, long time consumption and large workload.
According to the present invention, there is provided a method of installing a segmental replacement guide rail of a continuous casting machine, the segmental replacement guide rail including a first segmental unit and a second segmental unit which are parallel to each other and are disposed at a predetermined distance apart from each other, the first segmental unit and the second segmental unit respectively including an upper replacement guide rail assembly and a plurality of lower replacement guide rail sections connected to the upper replacement guide rail assembly, the method including the steps of:
step one, connecting and assembling an upper replacement guide rail assembly of the first fan-shaped unit and an upper replacement guide rail assembly of the second fan-shaped unit through rigid connecting rods to form a first pre-assembled body, and connecting and assembling each lower replacement guide rail section of the first fan-shaped unit and the corresponding lower replacement guide rail section of the second fan-shaped unit through rigid connecting rods to form a plurality of second pre-assembled bodies;
step two, sequentially installing a plurality of second pre-assembled bodies on two walls to form a second pre-assembled body combination, wherein the second pre-assembled body combination is positioned in a space formed between the two walls;
step three, the first pre-assembling body is installed on the two walls, and the first pre-assembling body and the second pre-assembling body are combined to form the segment replacing guide rail;
and step four, dismantling the first pre-assembled body and the rigid connecting rod on the second pre-assembled body.
Preferably, in the first step, the forming a first pre-assembly body includes:
symmetrically placing the upper assembly of the replacement guide rail of the first fan-shaped unit and the upper assembly of the replacement guide rail of the second fan-shaped unit, and adjusting the spacing distance;
and connecting the upper assembly of the replacement guide rail of the first fan-shaped unit with the upper assembly of the replacement guide rail of the second fan-shaped unit by using a rigid connecting rod to form a frame structure.
Preferably, in the first step, the forming a plurality of second pre-assembled bodies includes:
respectively symmetrically placing the lower sections of the replacement guide rails of the first fan-shaped units and the corresponding lower sections of the replacement guide rails of the second fan-shaped units, and adjusting the spacing distance;
and respectively connecting the lower sections of the replacement guide rails of the first fan-shaped units with the lower sections of the replacement guide rails of the corresponding second fan-shaped units by using rigid connecting rods to form a frame structure.
Preferably, change guide rail upper portion assembly with it all is equipped with the lug on the guide rail hypomere to change, change guide rail upper portion assembly with it all adopts the driving hoist and mount to transport to change the guide rail hypomere.
Preferably, when the first pre-assembly bodies and the second pre-assembly bodies are installed on the two walls, a chain block is erected above the two walls, and the angle and the height of the first pre-assembly bodies and the second pre-assembly bodies are adjusted in a mode that the chain block is matched with a travelling crane.
Preferably, the rigid connecting rod is made of angle steel or channel steel or I-shaped steel or H-shaped steel.
Preferably, in the first step, when the replacement upper guide rail assembly of the first sector unit and the replacement upper guide rail assembly of the second sector unit are connected and assembled through a rigid connecting rod, the rigid connecting rod is connected with the replacement upper guide rail assembly of the first sector unit and the replacement upper guide rail assembly of the second sector unit in a welding manner;
in the first step, when the lower sections of the replacement guide rails of the first fan-shaped unit and the corresponding lower sections of the replacement guide rails of the second fan-shaped unit are connected and assembled through rigid connecting rods, the rigid connecting rods are connected with the lower sections of the replacement guide rails of the first fan-shaped unit and the corresponding lower sections of the replacement guide rails of the second fan-shaped unit in a welding manner.
Preferably, the wall body is formed by pouring concrete, an installation base plate is embedded in the wall body during pouring, and the installation base plate is arranged on the vertical surface of the wall body;
wherein the first pre-assembled body and the second pre-assembled body are welded to the mounting pad.
Preferably, a plurality of welding process holes are formed in the assembly for replacing the upper part of the guide rail, and when the first pre-assembly body is welded to the mounting base plate, plug welding is performed at each welding process hole in the assembly for replacing the upper part of the guide rail.
Preferably, the periphery of the upper assembly of the replacement guide rail and the installation base plate are welded discontinuously, and the lower section of the replacement guide rail and the installation base plate are welded discontinuously.
The invention has the beneficial effects that: the invention provides a method for installing a replacing guide rail of a fan-shaped section of a continuous casting machine, which is a modularized installation mode, wherein an upper assembly body of two replacing guide rails which are symmetrical is connected and assembled through a rigid connecting rod to form a first pre-assembly body, a lower assembly body of each replacing guide rail which is symmetrical is connected and assembled through a rigid connecting rod to form a plurality of second pre-assembly bodies, the plurality of second pre-assembly bodies are sequentially installed on two walls, then the first pre-assembly bodies are installed on the two walls, and the rigid connecting rod is removed after the installation. By adopting the installation method for replacing the guide rails of the fan-shaped section of the continuous casting machine, the space between the guide rails can be ensured to be replaced, and the precision control is accurate. Only one side of the guide rail is required to be measured to replace the guide rail data during installation, and the consumed time is short. When the welding mode is adopted to weld with the installation base plates on the two walls, the guide rails are replaced on the fan-shaped sections, welding deformation cannot occur due to the fixed connection effect of the rigid connecting rods, and the installation quality can be guaranteed. The installation method has the advantages that the installation of the guide rail replacement of the fan-shaped section is convenient and rapid, the implementation is convenient, the construction progress and quality are ensured, the design requirements are met, and the practicability is very strong.
Drawings
The above and other objects, features and advantages of the present invention will become more apparent from the following description of the embodiments of the present invention with reference to the accompanying drawings.
Fig. 1 shows a schematic structural view of an upper assembly of a replacement guide rail according to an embodiment of the present invention.
Fig. 2 shows a schematic structural view of a lower section of a replacement guide rail according to an embodiment of the invention.
Fig. 3 shows a structural schematic view of a first pre-assembly according to an embodiment of the present invention.
Fig. 4 shows a structural schematic view of a second preassembly according to an embodiment of the present invention.
FIG. 5 shows a schematic view of the placement of a mounting mat on a wall according to an embodiment of the present invention.
Fig. 6 is a schematic structural view illustrating a segment replacement guide rail according to an embodiment of the present invention installed on a wall.
In the figure: the method comprises the following steps of replacing the upper assembly 1 of the guide rail, welding a fabrication hole 11, replacing the lower section 2 of the guide rail, a rigid connecting rod 3, a lifting lug 4, a wall body 5 and a mounting base plate 6.
Detailed Description
Various embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Like elements in the various figures are denoted by the same or similar reference numerals. For purposes of clarity, the various features in the drawings are not necessarily drawn to scale.
The guide rail is changed to the fan-shaped section of conticaster is installed to fan-shaped section, and the fan-shaped section is changed the guide rail and is included first fan-shaped unit and second fan-shaped unit, and is parallel to each other and the interval presets the distance setting between first fan-shaped unit and second fan-shaped unit, and first fan-shaped unit and second fan-shaped unit are including changing guide rail upper portion assembly 1 respectively to and connect the multi-disc change guide rail hypomere 2 on changing guide rail upper portion assembly 1. The structure of the replacement upper assembly 1 is shown in fig. 1, and the structure of the replacement lower assembly 2 is shown in fig. 2.
The invention discloses an installation method of a guide rail for replacing a fan-shaped section of a continuous casting machine, which comprises the following steps:
firstly, connecting and assembling the upper replacement guide rail assembly 1 of the first fan-shaped unit and the upper replacement guide rail assembly 1 of the second fan-shaped unit through rigid connecting rods 3 to form a first pre-assembled body, and connecting and assembling each lower replacement guide rail section 2 of the first fan-shaped unit and the corresponding lower replacement guide rail section 2 of the second fan-shaped unit through the rigid connecting rods 3 to form a plurality of second pre-assembled bodies.
In this step, the forming of the first pre-assembly body includes: symmetrically placing the upper replacement guide rail assembly 1 of the first fan-shaped unit and the upper replacement guide rail assembly 1 of the second fan-shaped unit, and adjusting the spacing distance; the replacement upper assembly 1 of the first sector unit and the replacement upper assembly 1 of the second sector unit are connected by a rigid connecting rod 3 to form a frame structure.
When the upper assembly 1 of the replacement guide rail is placed and the spacing distance is adjusted, the upper assembly 1 of the replacement guide rail can be placed on the horizontal ground of the pouring span to be symmetrically placed, and the upper assembly 1 of the replacement guide rail can also be placed on the steel plate platform to be symmetrically placed. When putting, every change guide rail upper portion assembly 1 all with horizontal ground perpendicular, two change guide rail upper portion assemblies 1 are parallel to each other, and two with the end that changes the guide rail keep the parallel and level, adjust two distances of changing between the guide rail upper portion assembly 1 according to the design requirement. When the rigid connecting rod 3 is used for connection, the rigid connecting rod 3 is made of steel sectional materials with better rigidity, such as angle steel, channel steel, I-shaped steel or H-shaped steel, and the steel sectional materials with proper length are cut according to the interval distance between two replacement guide rails to make the rigid connecting rod 3. In this embodiment, a plurality of H-shaped steels with appropriate lengths are selected to connect two replacement guide rail upper assemblies 1 to form a frame structure, and the structure of the first pre-assembly body is shown in fig. 3. Adopt the welding mode to be connected between the change guide rail upper portion assembly 1 of rigid link 3 and first fan-shaped unit and the change guide rail upper portion assembly 1 of second fan-shaped unit, for easy to assemble the dismantlement of completion back rigid link 3, in this embodiment, rigid link 3 and the welding pattern who adopts many spot welding when changing guide rail upper portion assembly 1 welding. In order to conveniently replace the upper assembly 1 of the guide rail for hoisting, the upper assembly 1 of the guide rail is replaced with a lifting lug 4, and the upper assembly 1 of the guide rail is replaced by adopting a travelling crane for hoisting and transferring.
In this step, the forming a plurality of second preassembly bodies includes: placing each lower replacement guide rail section 2 of the first fan-shaped unit symmetrically with the corresponding lower replacement guide rail section 2 of the second fan-shaped unit, and adjusting the spacing distance; each replacement lower guide rail section 2 of the first sector unit is connected with the corresponding replacement lower guide rail section 2 of the second sector unit by a rigid connecting rod 3 to form a frame structure.
Similarly, when the lower guide rail sections 2 are symmetrically placed and the spacing distance is adjusted, the replacement can be performed on the horizontal ground of the casting span or on a steel plate platform. When putting, every change guide rail hypomere 2 all with horizontal ground perpendicular, two change guide rail hypomere 2 that correspond each other are parallel to each other, and two change guide rail hypomere 2 that correspond each other keep the parallel and level with the end, adjust the distance between two change guide rail hypomere 2 that correspond each other according to the design requirement. When the rigid connecting rod 3 is used for connection, the rigid connecting rod 3 is made of steel sectional materials with better rigidity, such as angle steel, channel steel, I-shaped steel or H-shaped steel, and the rigid connecting rod 3 is made of the steel sectional materials with proper length cut according to the interval distance between the two corresponding lower sections 2 of the replacement guide rails. In this embodiment, a plurality of H-shaped steels with appropriate lengths are selected to connect two corresponding upper assembly 1 of replacement guide rails to form a frame structure, and the structure of the second pre-assembly is shown in fig. 4. Rigid connection rod 3 and the change guide rail hypomere 2 of the fan-shaped unit of first fan-shaped unit and the change guide rail hypomere 2 of the fan-shaped unit of second that corresponds adopt the welding mode to be connected, for easy to assemble accomplish demolising of back rigid connection rod 3, in this embodiment, rigid connection rod 3 and the welding pattern who adopts many spot welding when changing guide rail hypomere 2 welding. In order to conveniently replace the lower section 2 of the guide rail for hoisting, the lower section 2 of the guide rail is replaced with a lifting lug 4, and the lower section 2 of the guide rail is replaced by adopting a travelling crane for hoisting and transferring.
And step two, sequentially installing a plurality of second pre-assembled bodies on the two walls 5 to form a second pre-assembled body combination, wherein the second pre-assembled body combination is positioned in a space formed between the two walls 5.
In the embodiment, the wall body 5 is formed by pouring concrete, the mounting base plate 6 is embedded in the wall body 5 during pouring, the mounting base plate 6 is arranged on the vertical surface of the wall body 5, in order to enable the mounting base plate 6 to be firmly fixed on the wall body 5, an L-shaped steel bar anchor bolt is welded on one side, located on the wall body 5, of the mounting base plate 6, the L-shaped steel bar anchor bolt extends into the wall body 5, and after the wall body 5 is poured, the steel bar anchor bolt can enable the mounting base plate 6 to be firmly fixed on the wall; wherein the first pre-assembled body and the second pre-assembled body are welded on the mounting pad 6. The arrangement position of the mounting plate 6 on the wall 5 is determined according to the design requirement of the segment replacement guide rail on the wall 5, and the schematic diagram of the arrangement of the mounting plate 6 on the wall 5 is shown in fig. 5.
When a plurality of second pre-assembled bodies are installed on two walls 5, the second pre-assembled bodies are sequentially installed from bottom to top, and the installation position of each second pre-assembled body is ensured to meet the design requirement of replacing the guide rail of the sector section during installation. Because the distance between the two replacement guide rail lower sections 2 of the second pre-assembly body is determined, only the data of the replacement guide rail lower sections 2 on the same side need to be measured during installation, the installation time is short, and the hoisting time is shortened.
And step three, mounting the first pre-assembled body on two walls 5, and combining the first pre-assembled body and the second pre-assembled body to form a sector section replacement guide rail.
When the first pre-assembled bodies and the second pre-assembled bodies are installed on the two walls 5, the chain blocks are erected above the two walls 5, and the angle and the height of the first pre-assembled bodies and the second pre-assembled bodies are adjusted in a mode that the chain blocks are matched with the travelling crane. Referring to fig. 3, 4 and 6, in the present embodiment, when two lifting lugs 4 are provided on each replacement guide rail upper combination 1, two lifting lugs 4 are provided on each replacement guide rail lower section 2, a first pre-assembly body, and a plurality of second pre-assembly bodies are installed on two walls 5, a chain block mounting bracket with a beam is arranged above the two walls 5, two chain blocks (the chain block mounting bracket and the chain block are not shown in the figure) are arranged on the beam of the chain block mounting bracket, when the second pre-assembled body is hoisted, the crane firstly hoists the second pre-assembled body to a space formed between two walls 5 through the two lifting lugs 4 on the same side of the second pre-assembled body, after the second pre-assembled body is hoisted to the installation position, the chain block hangs the two lifting lugs 4 on the other side of the second pre-assembly body, the chain block is matched with the travelling crane, the angle and the height of the second pre-assembly body are adjusted, so that the mounting position of the second pre-assembly body on the wall 5 meets the design requirement. The installation of the first pre-assembled body is carried out in the same way, and the first pre-assembled body and the second pre-assembled body are combined to form a segment replacement guide rail. And the chain block mounting bracket are disassembled after the first pre-assembly body and the second pre-assembly body are mounted.
After the second pre-assembled body and the first pre-assembled body are hoisted in place, the second pre-assembled body and the first pre-assembled body are connected with the mounting base plate 6 on the wall body 5 in a welding mode, during welding, the lower section 2 of the replacement guide rail of the second pre-assembled body is welded with the mounting base plate 6 intermittently, the periphery of the upper assembly 1 of the replacement guide rail of the first pre-assembled body is welded with the mounting base plate 6 intermittently, welding deformation can be reduced through intermittent welding, and the mounting size is accurate. Because change guide rail upper portion assembly 1 bulky weight is big, for guaranteeing to change guide rail upper portion assembly 1 and installation backing plate 6 firm in connection, change and seted up a plurality of welding process hole 11 on the guide rail upper portion assembly 1, when first pre-assembling body welds on installation backing plate 6, plug welding is carried out in every welding process hole 11 department on changing guide rail upper portion assembly 1, makes change guide rail upper portion assembly 1 and installation backing plate 6 firm in welding. In this embodiment, the welding process holes 11 on the upper assembly 1 of the replacement guide rail are long round holes, and each upper assembly 1 of the replacement guide rail is provided with a plurality of welding process holes 11.
And step four, dismantling the first pre-assembled body and the rigid connecting rod 3 on the second pre-assembled body.
After the first pre-assembly, and the second pre-assembly are mounted in place, and the weld is completely cooled, the first pre-assembly, and the rigid connecting rod 3 on the second pre-assembly, are removed. When in dismantling, the welding points of the rigid connecting rod 3 and the upper assembly 1 of the replacement guide rail and the lower assembly 2 of the replacement guide rail are ground by using an angle grinder, and then the dismantling is carried out. The removed rigid connecting rod 3 can be reused.
The invention has the beneficial effects that: the invention provides a method for installing a replacing guide rail of a fan-shaped section of a continuous casting machine, which is a modularized installation mode, wherein an upper assembly body of two replacing guide rails which are symmetrical is connected and assembled through a rigid connecting rod to form a first pre-assembly body, a lower assembly body of each replacing guide rail which is symmetrical is connected and assembled through a rigid connecting rod to form a plurality of second pre-assembly bodies, the plurality of second pre-assembly bodies are sequentially installed on two walls, then the first pre-assembly bodies are installed on the two walls, and the rigid connecting rod is removed after the installation. By adopting the installation method for replacing the guide rails of the fan-shaped section of the continuous casting machine, the space between the guide rails can be ensured to be replaced, and the precision control is accurate. Only one side of the guide rail is required to be measured to replace the guide rail data during installation, and the consumed time is short. When the welding mode is adopted to weld with the installation base plates on the two walls, the guide rails are replaced on the fan-shaped sections, welding deformation cannot occur due to the fixed connection effect of the rigid connecting rods, and the installation quality can be guaranteed. The installation method has the advantages that the installation of the guide rail replacement of the fan-shaped section is convenient and rapid, the implementation is convenient, the construction progress and quality are ensured, the design requirements are met, and the practicability is very strong.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Finally, it should be noted that: it should be understood that the above examples are only for clearly illustrating the present invention and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications of the invention may be made without departing from the scope of the invention.
Claims (10)
1. A method for installing a sector replacement guide rail of a continuous casting machine, wherein the sector replacement guide rail comprises a first sector unit and a second sector unit, the first sector unit and the second sector unit are parallel to each other and are arranged at a preset interval, the first sector unit and the second sector unit respectively comprise an upper replacement guide rail assembly and a plurality of lower replacement guide rail sections connected to the upper replacement guide rail assembly, and the method is characterized by comprising the following steps:
step one, connecting and assembling an upper replacement guide rail assembly of the first fan-shaped unit and an upper replacement guide rail assembly of the second fan-shaped unit through rigid connecting rods to form a first pre-assembled body, and connecting and assembling each lower replacement guide rail section of the first fan-shaped unit and the corresponding lower replacement guide rail section of the second fan-shaped unit through rigid connecting rods to form a plurality of second pre-assembled bodies;
step two, sequentially installing a plurality of second pre-assembled bodies on two walls to form a second pre-assembled body combination, wherein the second pre-assembled body combination is positioned in a space formed between the two walls;
step three, the first pre-assembling body is installed on the two walls, and the first pre-assembling body and the second pre-assembling body are combined to form the segment replacing guide rail;
and step four, dismantling the first pre-assembled body and the rigid connecting rod on the second pre-assembled body.
2. The method of installing a caster segment replacement guide as claimed in claim 1 wherein said step one, forming a first pre-assembly includes:
symmetrically placing the upper assembly of the replacement guide rail of the first fan-shaped unit and the upper assembly of the replacement guide rail of the second fan-shaped unit, and adjusting the spacing distance;
and connecting the upper assembly of the replacement guide rail of the first fan-shaped unit with the upper assembly of the replacement guide rail of the second fan-shaped unit by using a rigid connecting rod to form a frame structure.
3. The method of installing a caster segment replacement guide of claim 1 wherein in step one, said forming a plurality of second pre-assemblies comprises:
respectively symmetrically placing the lower sections of the replacement guide rails of the first fan-shaped units and the corresponding lower sections of the replacement guide rails of the second fan-shaped units, and adjusting the spacing distance;
and respectively connecting the lower sections of the replacement guide rails of the first fan-shaped units with the lower sections of the replacement guide rails of the corresponding second fan-shaped units by using rigid connecting rods to form a plurality of frame structures.
4. The installation method for replacing the guide rail of the sector section of the continuous casting machine according to claim 1, wherein lifting lugs are arranged on the upper replacing guide rail assembly and the lower replacing guide rail assembly, and the upper replacing guide rail assembly and the lower replacing guide rail assembly are hoisted and transported by adopting a travelling crane.
5. The method for installing the sector replacement guide rail of the continuous casting machine according to claim 4, wherein when the first pre-assembled body and the second pre-assembled bodies are installed on the two wall bodies, a chain block is erected above the two wall bodies, and the angle and the height of the first pre-assembled body and the second pre-assembled bodies are adjusted in a mode that the chain block is matched with a travelling crane.
6. The method for installing the replacement guide rail for the segment of the continuous casting machine according to claim 1, wherein the rigid connecting rod is made of angle steel or channel steel or I-steel or H-steel.
7. The method for installing the replacement guide rail for the sector section of the continuous casting machine according to claim 6, wherein in the first step, when the combination of the upper replacement guide rail portion of the first sector unit and the combination of the upper replacement guide rail portion of the second sector unit are connected and assembled through the rigid connecting rod, the rigid connecting rod is connected with the combination of the upper replacement guide rail portion of the first sector unit and the combination of the upper replacement guide rail portion of the second sector unit in a welding manner;
in the first step, when the lower sections of the replacement guide rails of the first fan-shaped unit and the corresponding lower sections of the replacement guide rails of the second fan-shaped unit are connected and assembled through rigid connecting rods, the rigid connecting rods are connected with the lower sections of the replacement guide rails of the first fan-shaped unit and the corresponding lower sections of the replacement guide rails of the second fan-shaped unit in a welding manner.
8. The installation method for replacing the guide rail of the fan-shaped section of the continuous casting machine according to claim 1, wherein the wall body is formed by pouring concrete, a mounting base plate is embedded in the wall body during pouring, and the mounting base plate is arranged on the vertical surface of the wall body;
wherein the first pre-assembled body and the second pre-assembled body are welded to the mounting pad; the first pre-assembling body is welded with the mounting base plate through the periphery of the upper assembly of the replacement guide rail, and the second pre-assembling body is welded with the mounting base plate through the lower section of the replacement guide rail.
9. The method for installing the replacement guide rail of the sector section of the continuous casting machine according to claim 8, wherein a plurality of welding process holes are formed in the replacement guide rail upper assembly, and when the first pre-assembled body is welded to the installation base plate, plug welding is performed at each welding process hole in the replacement guide rail upper assembly.
10. The method for installing the replacement guide rail of the sector section of the continuous casting machine according to claim 8, wherein the periphery of the upper combination of the replacement guide rail is welded to the installation base plate by intermittent welding, and the lower section of the replacement guide rail is welded to the installation base plate by intermittent welding.
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| CN109653042A (en) * | 2018-12-06 | 2019-04-19 | 中国十七冶集团有限公司 | A kind of fan-shaped section replacement guide rail installation method based on modularization principle |
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