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Device and method for aligning longitudinal joint between furnace shells of hot air furnace

A hot blast stove and furnace shell technology, which is applied in auxiliary devices, auxiliary welding equipment, welding/cutting auxiliary equipment, etc., can solve the problems of inconvenient furnace shell alignment welding, thick hot blast stove shell, etc., so as to facilitate subsequent welding and improve The effect of construction quality and convenient operation

Active Publication Date: 2020-10-23
CHINA MCC17 GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem that the shells of the hot blast stove are thick and heavy, and it is inconvenient to align and weld the shells, the invention provides a device and method for aligning the longitudinal seams between the shells of the hot blast stove. And ensure the alignment effect, improve the construction efficiency

Method used

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  • Device and method for aligning longitudinal joint between furnace shells of hot air furnace
  • Device and method for aligning longitudinal joint between furnace shells of hot air furnace
  • Device and method for aligning longitudinal joint between furnace shells of hot air furnace

Examples

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Embodiment 1

[0039] A device for aligning longitudinal seams between shells of a hot blast stove in this embodiment includes a main alignment mechanism and an auxiliary alignment mechanism. The main alignment mechanism is arranged inside the furnace shell 1 and includes turnbuckle bolts 2, holding rods 3 and positioning blocks 4; The alignment mechanism is arranged on the outside of the furnace shell 1 and includes a positioning block 5 , a lanyard 6 and a chain hoist 7 . Because the furnace shell 1 is large and heavy, it is laborious to move. In this embodiment, the furnace shell 1 longitudinal seam is equipped with two sets of main alignment mechanism and auxiliary alignment mechanism from top to bottom, which can be operated at the same time to align the longitudinal seam. The main alignment mechanism and the auxiliary alignment mechanism are taken as examples for specific description.

[0040] combine figure 1 , the positioning block 4 is made of a steel plate whose length*width*thick...

Embodiment 2

[0047] The steps for aligning using the longitudinal seam alignment device of embodiment 1 are:

[0048] Step 1, lifting the multi-piece furnace shell 1, and roughly assembling the furnace body, and welding the positioning block 4 and the positioning stopper 5;

[0049] Step 2. According to the distance between the two positioning blocks 4 that have been installed, screw the screw rods at both ends of the turnbuckle 2 until the hook whose length can meet the screw rod can be hooked into the hole set on the positioning block 4;

[0050] Using the fulcrum principle, the dynamic holding rod 3 is rotated from top to bottom to drive the elliptical frame of the turnbuckle bolt 2 to rotate, so that the screws at both ends tighten each other due to the rotation; the positioning block 4 is pulled by the screw hook of the turnbuckle bolt 2, Drive the furnace shell 1 to tighten and align to meet the welding distance;

[0051] It is worth noting that, at this time, the positioning stoppe...

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Abstract

The invention discloses a device and method for aligning a longitudinal joint between furnace shells of a hot air furnace, and belongs to the technical field of mounting and adjustment of metallurgical equipment. The device comprises a main alignment mechanism and an auxiliary alignment mechanism, wherein the main alignment mechanism comprises a turnbuckle, a force rod and positioning blocks; thepositioning blocks are arranged on the two sides of the longitudinal joint between the furnace shells, and arranged on the inner sides of the furnace shells; hooks at the two ends of the turnbuckle are hooked into holes formed in the positioning blocks, and the force rod is inserted into an elliptical frame of the turnbuckle to rotate, so that the small longitudinal joint distance between the furnace shells is reduced, and alignment of the longitudinal joint is realized; the auxiliary alignment mechanism comprises positioning check blocks and a hand pulling block; the positioning check blocksare arranged on the two sides of the longitudinal joint between the furnace shells, and arranged on the outer sides of the furnace shells; the hand pulling block is hooked into the positioning check blocks; and the hand pulling block can be adjusted to reduce the large joint distance, and then the main alignment mechanism is used for aligning. According to the device and method, the joint distanceis considered comprehensively; smooth proceeding of the alignment work is facilitated; convenience is brought to operation; and the construction quality and construction efficiency are improved.

Description

technical field [0001] The invention relates to the technical field of installation and adjustment of metallurgical equipment, and more specifically relates to a device and method for aligning longitudinal seams between shells of a hot blast stove. Background technique [0002] The hot blast stove shell, as an important part of the hot blast stove body, plays an extremely important role. In the hot blast stove installation project of the ironmaking system in the metallurgical industry, the hot blast stove shell is usually made into pieces in the factory and transported to the construction site, and then assembled on the assembly platform, and then hoisted for installation. The alignment accuracy and speed of the longitudinal seam of the hot blast stove shell directly affect the subsequent installation of the hot blast stove body. [0003] Since the shell of the hot blast stove is generally 35mm-40mm thick or even thicker, it is temporarily placed after transportation to the...

Claims

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Application Information

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IPC IPC(8): B23K37/04B23K31/02
CPCB23K37/0443B23K31/02
Inventor 胡巍单博龙
Owner CHINA MCC17 GRP
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