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Bead welding device and method for wear-resistant layer on water-cooled wall by using MIG (Metal-Inert Gas) and flux-cored wire

A flux-cored welding wire and water-cooled wall technology, which is applied in the field of surfacing water-cooled wall wear-resistant layer, can solve the problem that there is no surfacing-welded water-cooled wall wear-resistant layer, which cannot effectively prevent the surface of the circulating fluidized bed water-cooled wall from wearing and burning. The wear and tear of the pipe wall in the transition area with the water-cooled wall tube and the service life of the water-cooled wall have achieved the effects of reducing maintenance and operation costs, facilitating operation, and reducing labor intensity

Active Publication Date: 2011-06-15
江苏科能环能动力科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention solves the problem that the existing method cannot effectively prevent the wear of the water-cooled wall surface of the circulating fluidized bed and prolongs the service life of the water-cooled wall in the transition area between the sanitary combustion belt and the water-cooled wall tube in the lower part of the furnace. At present, there is no surfacing welding water-cooled wall The problem of the wear-resistant layer device, and then propose a device and method for the wear-resistant layer of the water-cooled wall using MIG and flux-cored welding

Method used

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  • Bead welding device and method for wear-resistant layer on water-cooled wall by using MIG (Metal-Inert Gas) and flux-cored wire
  • Bead welding device and method for wear-resistant layer on water-cooled wall by using MIG (Metal-Inert Gas) and flux-cored wire
  • Bead welding device and method for wear-resistant layer on water-cooled wall by using MIG (Metal-Inert Gas) and flux-cored wire

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specific Embodiment approach 1

[0018] Specific implementation mode one: as Figure 1-3 As shown, the device for surfacing the wear-resistant layer of the water wall using MIG and flux-cored welding in this embodiment includes a welding machine assembly 1 and a welding torch 2, the output end of the welding machine assembly 1 is connected to the welding torch 2, and also includes an adjustment Mechanism 3, welding trolley 4, welding trolley track 5, slider 6, guide rail 7 and two fixed lifting lugs 8, the welding torch 2 is connected with the adjustment mechanism 3, the adjustment mechanism 3 is installed on the welding trolley 4, the The welding trolley 4 is slidingly connected to the welding trolley track 5, the welding trolley track 5 is rotationally connected to the slider 6, the slider 6 is slidingly connected to the guide rail 7, and the guide rail 7 is fixedly installed on the wall through two lifting lugs 8 , the adjustment mechanism 3 is used to adjust the relative position of the welding torch 2 an...

specific Embodiment approach 2

[0019] Specific implementation mode two: as Figure 1-3 As shown, the welding machine assembly 1 of the device for surfacing the wear-resistant layer of the water wall using MIG and flux-cored welding in this embodiment includes a gas cylinder 1-1, a carbon dioxide gas shielded welding machine 1-2, and a wire feeder 1 -3, the output end of the gas cylinder 1-1 is connected to the gas input end of the wire feeder 1-3, the output end of the carbon dioxide gas shielded welding machine 1-2 is connected to the input end of the wire feeder 1-3 connect. Other components and connections are the same as those in the first embodiment.

specific Embodiment approach 3

[0020] Specific implementation mode three: as Figure 1-3 As shown, the adjustment mechanism 3 of the device for surfacing the wear-resistant layer of the water wall using MIG and flux-cored welding in this embodiment includes an oscillator 3-1, a first moving rod 3-2, and a second moving rod 3-3 , the motor 3-4 and the support rod 3-5, the side of the first ground moving rod 3-2 is slidingly connected with the second moving rod 3-3, and one end of the first moving rod 3-2 is connected to the swinger 3 -1 connection, the second moving rod 3-3 is slidingly connected with the bracket rod 3-5, the second moving rod 3-3 can move along the bracket rod 3-5, and the bracket rod 3-5 is fixedly installed on On the welding trolley 4, the swing end of the oscillator 3-1 is connected to the welding torch 2, the motor 3-4 is fixedly mounted on the welding trolley 4, and the motor 3-4 is used to drive the welding trolley 4 along the welding trolley track 5 slides. This embodiment reduces ...

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Abstract

The invention relates to a bead welding device and method for a wear-resistant layer on a water-cooled wall by using the MIG (Metal-Inert Gas) and the flux-cored wire, belonging to the bead welding device and method for a wear-resistant layer on a water-cooled wall and aiming at solving the problems that the wear on the surface of the water-cooled wall of a circulating fluidized bed can not be prevented effectively and the service life of the worn water-cooled wall of the transition area pipe for a refractory belt arranged on the lower part of a hearth and a water-cooled wall pipe can not be prolonged by adopting the existing method and no bead welding device for a wear-resistant layer on a water-cooled wall is available at present. The device comprises a welder assembly and a welding gunand further comprises an adjusting mechanism, a welding tractor, a welding tractor rail, a sliding block, a guide rail and two fixed lift lugs, wherein the output end of the welder assembly is connected with the welding gun. When the device is in use, the water-cooled wall is filled with water, and then the wear-resistant layer is fused and welded on the surface of the water-cooled wall by using the device. The device and method disclosed by the invention are used for fusing and welding the wear-resistant layer on the water-cooled wall.

Description

technical field [0001] The invention relates to a device and a method for surfacing a wear-resistant layer of a water-cooled wall, in particular to a device and a method for surfacing a wear-resistant layer of a water-cooled wall by using MIG and flux-cored wire welding. Background technique [0002] The water wall is the main pressure-bearing part of the circulating fluidized bed boiler, mainly used to absorb the radiant heat of the boiler. During the operation of the circulating fluidized bed boiler, the flow direction of the solid material flowing down the inner wall of the furnace changes in the junction area, so The surface of the water-cooled wall is scoured. After a long period of scouring, the wall of the water-cooled wall is worn and thinned, and the strength is reduced. In addition, in the transitional area, because the solid material flowing down the wall is opposite to the solid material moving upward in the furnace, a vortex is locally generated. The swirling fl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K37/00B23K31/00
Inventor 王坤于洋
Owner 江苏科能环能动力科技有限公司