Dismountable cylinder roundness-adjusting anti-deformation control device and detachable cylinder roundness-adjusting anti-deformation control method

Abstract

The invention relates to the technical field of hot-blast stove barrel welding, in particular to a detachable barrel roundness-adjusting and deformation-preventing control device and a detachable barrel roundness-adjusting and deformation-preventing control method. According to the technical scheme, the device comprises a barrel to be welded and formed and a control mounting structure used for supporting and preventing deformation of the welded barrel, the control mounting structure comprises a disc-shaped mounting base, and a plurality of sets of supporting rods are mounted on the mounting base in the circumferential direction of the mounting base in an array mode; a connecting rod for reinforcing and supporting the two adjacent groups of supporting rods is arranged between the two adjacent groups of supporting rods, and a connecting assembly for locking and positioning one end of each supporting rod is correspondingly arranged above the mounting base. Compared with a traditional barrel installation construction method, the method has the advantages that the input of manpower, machines and tools and measure materials is reduced, the construction efficiency is improved, the construction cost is reduced, the characteristic that the barrel is prone to deformation during assembling, welding and hoisting is fully utilized, the barrel installation work is completed through the special tool, the construction efficiency is greatly improved, and the economic benefit is remarkable.

Description

Technical Field

[0001] The invention relates to the technical field of hot blast furnace cylinder welding, and in particular to a detachable cylinder rounding and anti-deformation control device and method. Background Art

[0002] The main body of the hot blast furnace is a tall cylinder structure with a large diameter. The cylinder is generally welded from steel plates of different thicknesses ranging from 20mm to 65mm. It is rolled in sections and petals at the manufacturing plant, and transported to the site for assembly and assembly after pre-assembly. Usually at the installation site, the size and roundness are adjusted during the assembly of the hot blast furnace shell, the assembly of the cylinder and the segmented hoisting, and the deformation of the cylinder is prevented during welding and hoisting. Conventional methods use jacks, hand winches, temporary supports, etc. as tools or auxiliary measures. During the adjustment process, the operation is difficult, inefficient, and unsafe; temporary supports need to be cut off and welded, which is not easy to use multiple times, and the measures and materials are seriously wasted.

[0003] In view of the above reasons, the present application proposes a detachable cylinder rounding and anti-deformation control device and method which can be reused to avoid material waste. Summary of the invention

[0004] The purpose of the present invention is to address the problems existing in the background technology and to provide a detachable cylinder rounding and anti-deformation control device and method which can be reused to avoid material waste.

[0005] On the one hand, the present application provides a detachable cylinder body rounding and anti-deformation control device, comprising a cylinder body to be welded and a control installation structure for supporting the welded cylinder body to prevent deformation, the control installation structure comprising a disc-shaped installation base, a plurality of groups of support rods are installed on the installation base along its circumferential array, a connecting rod for strengthening support of the two adjacent groups of support rods is arranged between the two groups, and a connecting assembly for locking and positioning one end of the support rod is arranged at a position above the corresponding installation base;

[0006] The ends of the multiple groups of support rods away from the mounting base are fixedly connected with an adjustment structure for clamping the cylinder, and the adjustment structure includes a clamping plate frame welded above the end of the support rod, and an inner wall of one side of the clamping plate frame is provided with a support rod end plate that fits with the end of the support rod, and the support rod end plate and the end of the connecting assembly are connected by a second bolt that is rotatably arranged.

[0007] Optionally, the card frame is an inverted "U"-shaped structure, and a reinforcing rib plate for reinforcing the support of the support rod end plate is provided on one side of the bottom of the support rod end plate;

[0008] The second bolt is also threadedly sleeved with a nut.

[0009] Optionally, the mounting base is provided with a plurality of mounting grooves for mounting the ends of the support rods in an array along its circumference.

[0010] Optionally, the connecting assembly includes a circular plate, the bottom of which is connected to a plurality of rectangular rods along a circumferential array, a fixing bolt is provided through the circular plate, the bottom end of the fixing bolt is fixedly connected to the central axis position of the mounting base, and the circular plate is slidably arranged along the fixing bolt.

[0011] Optionally, a spring is fixedly connected to the top of the circular plate, the other end of the spring is fixedly connected to the top outer ring of the fixing bolt, and the spring is a "T"-shaped structure.

[0012] Optionally, the same central node plate is installed on multiple groups of support rods, and the central node plate is a rectangular frame, and the four bottom corners of the central node plate and the center of each side are provided with slots corresponding to the width of the support rods.

[0013] Optionally, a connection hole is formed at one end of the support rod, and the second bolt is threadedly connected to the connection hole;

[0014] The other end of the support rod is provided with a mounting through hole passing through it, and the rectangular rod is mounted corresponding to the mounting through hole.

[0015] Optionally, bolt holes for connecting the connecting rod are opened along the length direction of the bottom side of the support rod, and connecting blocks are fixedly connected to both ends of the connecting rod. A first bolt for connecting the connecting block and the bolt hole is provided between the connecting block and the bolt hole.

[0016] On the other hand, the present application provides a detachable cylinder rounding and anti-deformation control method, which is applied to the detachable cylinder rounding and anti-deformation control device described above, and comprises the following steps:

[0017] Step 1: Build a construction walking platform: Use channel steel and patterned plates to build the platform, and use angle steel and safety ropes to make safety guardrails;

[0018] Step 2: Assembling the cylinder, control installation structure and adjustment structure: The segmented shells are assembled on a temporary assembly platform. The shell assembly is based on the bayonet on the assembly platform and the dimension line on the platform. The segmented shells are placed on the assembly platform and in place to form a cylinder. The radial support rods in eight directions of 0-360° in radius are installed on the upper end of the cylinder according to the bayonet mark position to ensure that the installation center of the control installation structure is consistent with the center of the platform.

[0019] Step 3: Precise adjustment: Adjust the center deviation and ovality of the cylinder by adjusting the setting of the structure. Specifically, adjust the size of the cylinder by adjusting the length of the second bolt. Measure the center line, ovality and horizontal height of the cylinder through the center measuring hole. After the size is correct, spot welding reinforcement and formal welding are carried out.

[0020] Compared with the prior art, the present invention has the following beneficial technical effects:

[0021] The present invention realizes the support of the cylinder by controlling the setting of the installation structure, combining the setting of multiple groups of support rods, eight radial main rods, a connection system composed of a central node plate and a connecting rod, and eight fulcrums are fixed on the upper end of the cylinder. The structure is scientific and reasonable, ensuring that the device is safe, stable and non-deformed during the construction of the cylinder, ensuring the stability of the support, and at the same time, the structure adopts a detachable connection method, which can be reused to avoid material waste;

[0022] The present invention adjusts the size of the cylinder by adjusting the length of the end bolts through the setting of the adjustment structure, which can effectively prevent the deformation of the cylinder caused by welding and the force during hoisting, and realizes the full adjustment and use of the structure in combination with the setting of the erection platform, thereby ensuring the normal use of the structure;

[0023] In summary, compared with the traditional cylinder installation construction method, the present invention reduces the input of manpower, machinery, and materials, improves construction efficiency, and reduces construction costs. It fully utilizes the characteristics of the cylinder that is easy to deform during assembly, welding, and hoisting, and uses special tooling to complete the cylinder installation work, which greatly improves construction efficiency and has significant economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 Provide a three-dimensional structural schematic diagram of the present invention;

[0025] Figure 2 It is a bottom view schematic diagram of the control installation structure and the adjustment structure of the present invention;

[0026] Figure 3 Provide a schematic diagram of the decomposition structure of the present invention;

[0027] Figure 4 It is a structural schematic diagram of the support rod in the present invention;

[0028] Figure 5 It is a structural schematic diagram of the adjustment structure in the present invention;

[0029] Figure 6 Given Figure 3 Schematic diagram of the cross-sectional front view structure.

[0030] Reference numerals:

[0031] 1. Cylinder;

[0032] 2. Control installation structure; 21. Installation base; 210. Installation slot; 22. Support rod; 220. Bolt hole; 221. Installation through hole; 222. Connection hole; 23. Connection rod; 231. Connection block; 232. First bolt; 24. Center node plate; 240. Bayonet; 25. Connection assembly; 250. Circular plate; 251. Rectangular rod; 252. Fixing bolt; 253. Spring;

[0033] 3. Adjust the structure; 31. Pallet frame; 32. Support rod end plate; 33. Reinforcement rib plate; 34. Second bolt; 35. Nut. DETAILED DESCRIPTION

[0034] The technical solution of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all of the embodiments.

[0035] The components of the embodiments of the present disclosure generally described and shown in the drawings herein may be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present disclosure provided in the drawings is not intended to limit the scope of the present disclosure claimed, but merely represents selected embodiments of the present disclosure.

[0036] Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present disclosure.

[0037] In the description of the present disclosure, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present disclosure.

[0038] In the description of the present disclosure, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.

[0039] Example

[0040] like Figure 1-Figure 6As shown, a detachable cylinder rounding and anti-deformation control device proposed in the present invention needs to be pre-built before the cylinder is welded, including a cylinder 1 to be welded and a control installation structure 2 for supporting the welded cylinder 1 to prevent deformation, the control installation structure 2 includes a disc-shaped installation base 21, the installation base 21 is provided with a plurality of installation grooves 210 for installing the ends of support rods 22 along its circumferential array, specifically, there are 8 groups of installation grooves 210, and they are radially opened; a plurality of groups of support rods 22 are installed on the installation base 21 along its circumferential array, and a connecting rod 23 for strengthening the support of the two adjacent groups of support rods 22 is provided between the two adjacent groups of support rods 22, and the plurality of connecting rods 23 form an annular support, and the support rods 22 and the connecting rods 23 are made of DN100 steel pipes; as shown Figure 4 As shown, the bottom side of the support rod 22 is provided with a bolt hole 220 for connecting the connecting rod 23 along its length direction, and the two ends of the connecting rod 23 are fixedly connected with a connecting block 231, and a first bolt 232 for connecting the connecting block 231 and the bolt hole 220 is provided between the connecting block 231 and the bolt hole 220, and the connection rod 23 is combined with the arrangement to support multiple support rods 22; Figure 3 and Figure 6 As shown, a connecting assembly 25 for locking and positioning one end of the support rod 22 is provided at the upper position of the corresponding mounting base 21, and the connecting assembly 25 includes a circular plate 250, and a plurality of rectangular rods 251 are connected to the bottom of the circular plate 250 along its circumferential array, and a mounting through hole 221 is provided at the other end of the support rod 22, and the rectangular rod 251 is clamped and installed corresponding to the mounting through hole 221; a fixing bolt 252 is provided through the circular plate 250, and a spring 253 is fixedly connected to the top of the circular plate 250, and the other end of the spring 253 is fixedly connected to the top outer ring of the fixing bolt 252, and the spring 253 is a "T"-shaped structure, and the bottom end of the fixing bolt 252 is fixedly connected to the central axis position of the mounting base 21, and a circular through hole for the fixing bolt 252 to pass through is provided on the circular plate 250, and the circular plate 250 is slidably arranged along the fixing bolt 252; Figure 3 As shown, the same central node plate 24 is installed on multiple groups of support rods 22. The central node plate 24 is a rectangular frame, made of 16mm steel plate, and the four corners at the bottom of the central node plate 24 and the center of each side are provided with a bayonet 240 corresponding to the width of the support rod 22;

[0041] like Figure 1 , Figure 2 , Figure 3 and Figure 5 as well as Figure 6As shown, the ends of the multiple groups of support rods 22 away from the mounting base 21 are fixedly connected with an adjustment structure 3 for clamping the cylinder 1, and the structures involved in the adjustment structure 3 are all made of 16mm steel plates. The adjustment structure 3 includes a card frame 31 welded and connected above the end of the support rod 22, and the card frame 31 is an inverted "U"-shaped structure. The inner wall of one side of the card frame 31 is provided with a support rod end plate 32 that fits with the end of the support rod 22, and a reinforcing rib plate 33 for strengthening the support of the support rod end plate 32 is provided on one side of the bottom of the support rod end plate 32. The support rod end plate 32 and the end of the connecting assembly 25 are connected by a second bolt 34 that is rotatably set. The second bolt 34 is a M28*300mm bolt, and a connecting hole 222 is opened at one end of the support rod 22. The second bolt 34 is threadedly rotatably connected to the connecting hole 222, and a nut 35 is also threadedly sleeved on the second bolt 34.

[0042] In combination with the use method of the detachable cylinder rounding and anti-deformation control device, the welding of the cylinder includes the following steps:

[0043] Step 1: Build a construction walking platform: Use 10# channel steel and 4mm patterned plate to build the platform, and use L50*4 angle steel and 8mm safety rope to make safety guardrails;

[0044] Step 2, assembly of the cylinder 1, the control installation structure 2 and the adjustment structure 3: The segmented shell is assembled on the temporary assembly platform. The cylinder is divided into two arc shells. The shell assembly is based on the bayonet 240 on the assembly platform and the dimension line on the platform. The segmented shell is placed on the assembly platform and in place to form a cylinder. The support rods 22 with eight radial directions of 0-360° are installed on the upper mouth of the cylinder according to the marked positions of the bayonet 240 to ensure that the installation center of the control installation structure 2 is consistent with the center of the platform. Specifically, the control installation structure 2 is assembled first, and the center of the cylinder is determined and then the line is drawn. Or other calibration methods are used to determine the center points of the mounting base 21 and the connecting component 25, and one end of the support rod 22 is installed corresponding to the mounting groove 210, and the corresponding connecting component 25 is assembled corresponding to the mounting base 21, so that the circular plate 250 is pulled and slid along the fixing bolt 252. At this time, the spring 253 is compressed, and the circular plate 250 is loosened corresponding to the rectangular rod 251 and the mounting through hole 221, so that the rectangular rod 251 is clamped corresponding to the mounting through hole 221, so as to fix one end of the support rod 22, and at the same time, the setting of the connecting rod 23, the connecting block 231 and the first bolt 232 is combined to realize the following Figure 2 The assembly of multiple support rods 22 shown further improves the support effect of the structure;

[0045] Step 3: Precise adjustment: The center deviation and ovality of the cylinder 1 are adjusted by adjusting the setting of the adjustment structure 3. Specifically, the size of the cylinder is adjusted by adjusting the length of the second bolt 34. The center line, ovality and horizontal height of the cylinder are measured through the center measuring hole. After the size is correct, spot welding reinforcement and formal welding are performed;

[0046] Specifically, the center deviation and ovality of the cylinder 1 to be welded are achieved by adjusting the length of the second bolt 34 in the connecting hole 222. The center line, ovality and horizontal height of the cylinder are measured through the measuring hole at the welding center. After the size is correct, spot welding reinforcement and formal welding are performed.

[0047] The above specific embodiment is only an optional embodiment of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above embodiment, those skilled in the art can make various alternative improvements and combinations to the above specific embodiment.

Claims

1. A detachable cylinder rounding and anti-deformation control device, comprising a cylinder (1) to be welded and formed and a control installation structure (2) for supporting and anti-deformation the welded cylinder (1), characterized in that: The control installation structure (2) comprises a disc-shaped installation base (21), on which a plurality of groups of support rods (22) are installed in an array along the circumference thereof, a connecting rod (23) is provided between two adjacent groups of the support rods (22) for reinforcing the support of the two groups, and a connecting assembly (25) for locking and positioning one end of the support rod (22) is provided at a position above the installation base (21); The ends of the plurality of support rods (22) away from the mounting base (21) are fixedly connected to an adjustment structure (3) for clamping the cylinder (1), the adjustment structure (3) comprising a clamping plate frame (31) welded to the top of the end of the support rod (22), a support rod end plate (32) fitted with the end of the support rod (22) is provided on an inner wall of one side of the clamping plate frame (31), and the support rod end plate (32) and the end of the connecting assembly (25) are connected via a second bolt (34) which is rotatably arranged.

2. A detachable cylinder rounding and anti-deformation control device according to claim 1, characterized in that: The card frame (31) is an inverted "U"-shaped structure, and a reinforcing rib plate (33) for reinforcing the support of the support rod end plate (32) is provided on one side of the bottom of the support rod end plate (32); The second bolt (34) is also threadedly sleeved with a nut (35).

3. A detachable cylinder rounding and anti-deformation control device according to claim 1, characterized in that: The mounting base (21) is provided with a plurality of mounting grooves (210) arranged in an array along its circumference for mounting the ends of the support rods (22).

4. A detachable cylinder rounding and anti-deformation control device according to claim 3, characterized in that: The connection assembly (25) comprises a circular plate (250), the bottom of the circular plate (250) is connected to a plurality of rectangular rods (251) in an array along its circumference, a fixing bolt (252) is provided through the circular plate (250), the bottom end of the fixing bolt (252) is fixedly connected to the central axis position of the mounting base (21), and the circular plate (250) is slidably arranged along the fixing bolt (252).

5. A detachable cylinder rounding and anti-deformation control device according to claim 4, characterized in that: A spring (253) is fixedly connected to the top of the circular plate (250), the other end of the spring (253) is fixedly connected to the top outer ring of the fixing bolt (252), and the spring (253) is a "T"-shaped structure.

6. A detachable cylinder rounding and anti-deformation control device according to claim 1, characterized in that: The same central node plate (24) is installed on multiple groups of support rods (22), the central node plate (24) is a rectangular frame, and the four corners at the bottom of the central node plate (24) and the center of each side are provided with a bayonet (240) corresponding to the width of the support rod (22).

7. A detachable cylinder rounding and anti-deformation control device according to claim 4, characterized in that: A connecting hole (222) is formed at one end of the support rod (22), and the second bolt (34) is rotatably connected to the connecting hole (222) by means of a thread; The other end of the support rod (22) is provided with a mounting through hole (221) penetrating therethrough, and the rectangular rod (251) is mounted corresponding to the mounting through hole (221).

8. The detachable cylinder rounding and anti-deformation control device according to claim 1 is characterized in that: The bottom side surface of the support rod (22) is provided with a bolt hole (220) for connecting the connecting rod (23) along its length direction, and the two ends of the connecting rod (23) are fixedly connected with connecting blocks (231), and a first bolt (232) for connecting the connecting block (231) and the bolt hole (220) is provided between the two.

9. A detachable cylinder rounding and anti-deformation control method, applied to the detachable cylinder rounding and anti-deformation control device as claimed in any one of claims 1 to 8, characterized in that: The following steps are involved: Step 1: Build a construction walking platform: Use channel steel and patterned plates to build the platform, and use angle steel and safety ropes to make safety guardrails; Step 2, assembly of the cylinder (1) with the control installation structure (2) and the adjustment structure (3): the segmented shells are assembled on a temporary assembly platform, and the shell assembly is based on the bayonet (240) on the assembly platform and the dimension line on the platform. The segmented shells are placed on the assembly platform and in place to form a cylinder. The support rods (22) radially in eight directions of 0-360° in radius are installed at the upper end of the cylinder according to the marked positions of the bayonet (240), ensuring that the installation center of the control installation structure (2) is consistent with the center of the platform; Step 3: Precise adjustment: The center deviation and ovality of the cylinder (1) are adjusted by adjusting the setting of the adjustment structure (3). Specifically, the size of the cylinder is adjusted by adjusting the length of the second bolt (34). The center line, ovality and horizontal height of the cylinder are measured through the center measuring hole. After the size is correct, spot welding reinforcement and formal welding are performed.

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