KR20140033866A - Apparatus for recovering flux - Google Patents

Apparatus for recovering flux Download PDF

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Publication number
KR20140033866A
KR20140033866A KR1020120100311A KR20120100311A KR20140033866A KR 20140033866 A KR20140033866 A KR 20140033866A KR 1020120100311 A KR1020120100311 A KR 1020120100311A KR 20120100311 A KR20120100311 A KR 20120100311A KR 20140033866 A KR20140033866 A KR 20140033866A
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KR
South Korea
Prior art keywords
flux
ejector
hopper
compressed air
recovery
Prior art date
Application number
KR1020120100311A
Other languages
Korean (ko)
Inventor
배광무
윤광희
곽명섭
Original Assignee
대우조선해양 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 대우조선해양 주식회사 filed Critical 대우조선해양 주식회사
Priority to KR1020120100311A priority Critical patent/KR20140033866A/en
Publication of KR20140033866A publication Critical patent/KR20140033866A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D88/00—Large containers
    • B65D88/26—Hoppers, i.e. containers having funnel-shaped discharge sections
    • B65D88/28—Construction or shape of discharge section
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/0027—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
    • 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
    • B23K9/00—Arc welding or cutting
    • B23K9/32—Accessories
    • B23K9/324—Devices for supplying or evacuating a shielding or a welding powder, e.g. a magnetic powder
    • 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
    • B23K9/00—Arc welding or cutting
    • B23K9/32—Accessories
    • B23K9/327—Means for transporting supplies

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Arc Welding In General (AREA)

Abstract

Disclosed is a flux recovery apparatus for submerged arc welding, which exhibits excellent flux recovery performance by using an ejector and compressed air, and a simple structure of the apparatus. The flux recovery apparatus recovers the flux used for welding, and includes a flux hopper for accommodating the flux to supply the flux to the weld, a flux supply nozzle for supplying the flux contained in the flux hopper to the weld, and a compression. It includes an ejector for forcibly sucking the residual flux of the welding portion by the air, a compressed air inlet for being connected to the compressed air supply portion formed in the ejector, and a flux transfer pipe connecting the ejector and the flux hopper. Therefore, it is possible to recover all the flux remaining inside the improved surface, which can greatly improve the environment of the workplace, and the structure is simple and maintenance is extremely easy as well as cost-effective because no separate vacuum motor is used. .

Description

Flux recovery device {APPARATUS FOR RECOVERING FLUX}

The present invention relates to a flux recovery device for submerged arc welding, and more particularly, for submerged arc welding for recycling the flux so as to recover and reuse the flux used in the submerge arc welding such as pipes and flat plates. A flux recovery device.

In general, the submerged arc welding (SAW) is performed during the operation of large pipes, flat plates, etc. in the shipbuilding field, the welding in this field is mostly automated by automatic welding machines. The submerged arc welding supplies flux to the welding site to generate an arc between the wire tip and the base material which is automatically supplied in the flux, thereby continuously performing welding.

Korean Patent Laid-Open Publication No. 2010-0036122, which is previously filed, discloses a continuous supply and continuous recovery device for a submerged arc welding device. The flux recovery apparatus for the conventional submerged arc welding has a flux hopper, an electric motor, a flux suction nozzle and a flux supply nozzle.

The flux hopper is a container for supplying the flux to the weld, and the electric motor provides power for sucking the flux and delivering the flux to the flux hopper. The flux suction nozzle is a flow path for sucking the flux remaining in the upper surface of the pipe and the improved surface after welding, and the flux supply nozzle is a flow path for supplying the flux to be used for welding.

However, the conventional flux recovery device for submerged arc welding is a structure that directly sucks the flux remaining on the pipe after welding with a flux suction nozzle by forming a vacuum using an electric motor, and the device is expensive, complicated in structure and thick. When the thick pipe is welded, there is a problem that the flux inside the deep surface is not recovered and falls to the floor.

Republic of Korea Patent Publication No. 2010-0036122 (2010.04.07)

In order to solve such a conventional problem, it provides a flux recovery device for submerged arc welding that is excellent in flux recovery performance by using an ejector and compressed air, and a simple structure of the device.

The flux recovery apparatus according to the present invention is to recover the flux used for welding reusable, a flux hopper for receiving the flux to supply the flux to the weld, and a flux supply for supplying the flux contained in the flux hopper to the weld A nozzle, an ejector for forcibly sucking the residual flux of the welded portion by the compressed air, a compressed air inlet portion formed in the ejector to be connected to the compressed air supply portion, and a flux conveying pipe connecting the ejector and the flux hopper; do.

Flux recovery apparatus according to the present invention can recover all the flux remaining inside the improved surface can greatly improve the environment of the workplace, and does not use a separate vacuum motor is simple in structure and extremely easy to maintain It is a very useful invention, which is cost effective.

1 shows a schematic configuration of a flux recovery apparatus according to an embodiment of the present invention,
Figure 2 is an enlarged view of the ejector portion of the flux recovery apparatus according to an embodiment of the present invention,
Figure 3 shows a schematic configuration of a flux recovery apparatus according to another embodiment of the present invention.

Hereinafter, the technical configuration of the flux recovery apparatus according to the accompanying drawings in detail as follows.

1 shows a schematic configuration of a flux recovery apparatus according to an embodiment of the present invention, Figure 2 is an enlarged view of the ejector portion of the flux recovery apparatus according to an embodiment of the present invention.

As shown in Figure 1 and 2, the flux recovery device according to an embodiment of the present invention is to recover and recycle the flux used for welding reusable, plus the hopper 10 and the flux supply nozzle 20 ), An ejector 30, a compressed air inlet 40, a flux feed tube 50 and a recovery 60, and a dust filter 70.

The flux hopper 10 accommodates the flux to supply the flux to the welded portion, and a predetermined space portion is formed therein so as to receive the flux in the space portion.

The flux supply nozzle 20 is for supplying the flux contained in the flux hopper 10 to the welding part, and is connected to the lower side of the flux supply nozzle 20, and selectively opens and closes the supply of flux by the on / off valve 21. It is made to

The ejector 30 is forced to suck in the residual flux of the weld by compressed air. In addition, the compressed air inlet 40 is formed in the ejector 30 and is connected to a compressed air supply unit (not shown) for supplying compressed air.

The flux transfer pipe 50 connects the ejector 30 and the flux hopper 10 to form a flow path through which the flux forcedly sucked through the ejector 30 is transferred to the flux hopper 10 side.

The recovery unit 60 is for recovering the residual flux falling from the welding unit, the welding unit according to an embodiment of the present invention is implemented in the form of a pipe 99, the pipe 99 is rotated by a separate rotation means As the welding is made. In this case, since the welding of the pipe 99 is performed by the submerged arc welding in the downward position, the flux remaining after the welding falls by the rotation and gravity of the pipe 99 and is collected by the recovery part 60. .

That is, the upstream end of the ejector 30 is connected to the recovery part 60 so that the flux recovered to the recovery part 60 is supplied by the compressed air supplied to the ejector 30 to the flux hopper 10. Forced circulation.

The dust filter 70 filters the compressed air recovered by the flux hopper 10 and the dust contained in the flux to filter and discharge the dust to the outside.

In this case, the flux recovery apparatus according to an embodiment of the present invention further includes an external air inlet 35. The external air inlet 35 is formed on the flow path of the flux to introduce external air, thereby smoothly transferring the flux of the recovery unit 60 to the flux hopper 10.

Therefore, when the compressed air only sucks the flux in the form of powder, a large pressure is applied to the input terminal of the ejector, so that the smooth flux is not inhaled. Therefore, the flux can be smoothly sucked by the traction force generated in the strong air flow. In this case, the external air inlet 35 is preferably disposed at the connecting portion between the recovery unit 60 and the ejector 30. Therefore, the powdered flux can be sucked most efficiently by the pulling force of the compressed air.

In addition, the flux recovery apparatus according to an embodiment of the present invention further includes a first filter part 61. The first filter part 61 is formed in the recovery part 60, and has a mesh shape to remove foreign substances contained in the flux.

In addition, the flux recovery apparatus according to an embodiment of the present invention further includes a second filter part 62. The second filter part 62 is formed in the flux hopper 10, and is formed in a mesh form to remove foreign substances contained in the flux and is inclined with respect to the horizontal direction. Therefore, the finer foreign matter contained in the flux is filtered so as not to be mixed with the weld.

On the other hand, Figure 3 shows a schematic configuration of a flux recovery apparatus according to another embodiment of the present invention.

Referring to FIG. 3, the flux recovery apparatus according to another embodiment of the present invention recovers and recycles a flux used for welding to be reused. The plus hopper 10, the flux supply nozzle 20, and the ejector ( 30, the compressed air inlet 40, the flux feed pipe 50 and the plug suction nozzle 80, and the dust filter (70). Flux recovery apparatus according to another embodiment of the present invention will be described using the same reference numerals for the same configuration as the above-described embodiment.

The flux hopper 10 accommodates the flux to supply the flux to the welded portion, and a predetermined space portion is formed therein so as to receive the flux in the space portion.

The flux supply nozzle 20 is for supplying the flux contained in the flux hopper 10 to the welding part, and is connected to the lower side of the flux supply nozzle 20, and selectively opens and closes the supply of flux by the on / off valve 21. It is made to

The ejector 30 is forced to suck in the residual flux of the weld by compressed air. In addition, the compressed air inlet 40 is formed in the ejector 30 and is connected to a compressed air supply unit (not shown) for supplying compressed air.

The flux transfer pipe 50 connects the ejector 30 and the flux hopper 10 to form a flow path through which the flux forcedly sucked through the ejector 30 is transferred to the flux hopper 10 side.

The flux suction nozzle 80 is connected to an upstream end of the ejector 30 to directly suck the residual flux of the weld portion. As a result, the residual flux is forced into the flux hopper 10 by the compressed air supplied to the ejector 30. Unexplained reference numeral 97 denotes a welding torch.

 The welding unit according to another embodiment of the present invention is implemented in the form of a flat plate 98, and the flux remaining on the flat plate 98 after welding is directly sucked by the flux suction nozzle 80. That is, the upstream end of the ejector 30 is connected to the flux suction nozzle 80 so that the flux remaining on the flat plate 98 is supplied to the flux hopper 10 by compressed air supplied to the ejector 30. Forced circulation

The dust filter 70 filters the compressed air recovered by the flux hopper 10 and the dust contained in the flux to filter and discharge the dust to the outside.

In addition, the flux recovery apparatus according to another embodiment of the present invention further includes a second filter unit 62. The second filter part 62 is formed in the flux hopper 10, and is formed in a mesh form to remove foreign substances contained in the flux and is inclined with respect to the horizontal direction. Therefore, the finer foreign matter contained in the flux is filtered so as not to be mixed with the weld.

The flux recovery apparatus according to the present invention has been described with reference to the embodiment shown in the drawings, but this is merely exemplary, and those skilled in the art will understand that various modifications and equivalent other embodiments are possible. Accordingly, the scope of the true technical protection should be determined by the technical idea of the appended claims.

10 flux hopper 20 flux supply nozzle
30: ejector 35: external air inlet
40: compressed air inlet 50: flux transfer pipe
60: recovery part 61: first filter part
62: second filter unit 70: dust filter
80 flux suction nozzle 98 flat plate
99: pipe

Claims (8)

In the flux recovery device for recovering the flux used during welding to be reusable,
A flux hopper 10 for receiving the flux to supply the flux to the weld;
A flux supply nozzle 20 for supplying the flux contained in the flux hopper 10 to the welding part;
An ejector (30) for forcibly sucking the residual flux of the weld by compressed air;
As formed in the ejector 30, the compressed air inlet 40 for connecting to the compressed air supply; And
Flux recovery device comprising a flux transfer pipe (50) connecting the ejector (30) and the flux hopper (10). The method according to claim 1,
And a recovery part 60 for recovering the residual flux falling from the welding part, and an upstream end of the ejector 30 is connected to the recovery part 60 so that the flux recovered to the recovery part 60 is Flux recovery device, characterized in that forced circulation to the flux hopper (10) by the compressed air supplied to the ejector (30). The method of claim 2,
Flux recovery device characterized in that it comprises an external air inlet (35) for introducing outside air on the flow path of the flux in order to smoothly transfer the flux of the recovery unit (60) to the flux hopper (10). The method of claim 3,
The external air inlet 35 is at the connection between the recovery unit 60 and the ejector 30, characterized in that the flux recovery device. The method of claim 2,
The flux recovery device, which is formed in the recovery part 60, comprises a first filter part 61 formed in a mesh form to remove foreign substances contained in the flux. The method according to claim 1,
A flux suction nozzle 80 connected to an upstream end of the ejector 30 to directly suck the residual flux of the welded part, and the residual flux is supplied by the compressed air supplied to the ejector 30 to form the flux hopper ( 10) The flux recovery device, characterized in that forced circulation to. The method according to claim 2 or 6,
The flux recovery apparatus, which is formed in the flux hopper 10 and has a mesh shape to remove foreign matters contained in the flux, comprises a second filter portion 62 inclined with respect to the horizontal direction. The method according to claim 2 or 6,
The flux recovery device, characterized in that a dust filter (70) for filtering the compressed air recovered by the flux hopper (10) and dust contained in the flux to be discharged to the outside.
KR1020120100311A 2012-09-11 2012-09-11 Apparatus for recovering flux KR20140033866A (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101597904B1 (en) 2014-10-17 2016-02-25 두산중공업 주식회사 Recovery device of fume and flux
CN106735791A (en) * 2016-12-12 2017-05-31 邓惠芬 For the solder flux automatic cycle feedway of submerged-arc horizontal
CN107042353A (en) * 2017-06-03 2017-08-15 河南鸿宇工业装备工程有限公司 Suitable for the retracting device of H profile steel submerged arc flux
CN114939744A (en) * 2022-04-29 2022-08-26 江苏涯角智能装备有限公司 Turbocharging dust removal and noise reduction equipment for laser cutting
WO2022205567A1 (en) * 2021-03-31 2022-10-06 浙江金象科技有限公司 Submerged arc welding flux recycling separating discharging circulating device
CN117226227A (en) * 2023-11-09 2023-12-15 中国核工业二四建设有限公司 Automatic double-station steel bar submerged arc stud welding equipment

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101597904B1 (en) 2014-10-17 2016-02-25 두산중공업 주식회사 Recovery device of fume and flux
CN106735791A (en) * 2016-12-12 2017-05-31 邓惠芬 For the solder flux automatic cycle feedway of submerged-arc horizontal
CN107042353A (en) * 2017-06-03 2017-08-15 河南鸿宇工业装备工程有限公司 Suitable for the retracting device of H profile steel submerged arc flux
WO2022205567A1 (en) * 2021-03-31 2022-10-06 浙江金象科技有限公司 Submerged arc welding flux recycling separating discharging circulating device
CN114939744A (en) * 2022-04-29 2022-08-26 江苏涯角智能装备有限公司 Turbocharging dust removal and noise reduction equipment for laser cutting
CN117226227A (en) * 2023-11-09 2023-12-15 中国核工业二四建设有限公司 Automatic double-station steel bar submerged arc stud welding equipment
CN117226227B (en) * 2023-11-09 2024-01-30 中国核工业二四建设有限公司 Automatic double-station steel bar submerged arc stud welding equipment

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