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WO2010123170A1 - Method for manufacturing drum for waste heat recovery apparatus using frequency heat treatment machine - Google Patents

Method for manufacturing drum for waste heat recovery apparatus using frequency heat treatment machine Download PDF

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Publication number
WO2010123170A1
WO2010123170A1 PCT/KR2009/003567 KR2009003567W WO2010123170A1 WO 2010123170 A1 WO2010123170 A1 WO 2010123170A1 KR 2009003567 W KR2009003567 W KR 2009003567W WO 2010123170 A1 WO2010123170 A1 WO 2010123170A1
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WO
WIPO (PCT)
Prior art keywords
iron plate
drum
rolled
frequency heat
frequency
Prior art date
Application number
PCT/KR2009/003567
Other languages
French (fr)
Korean (ko)
Inventor
강현기
강병기
황인선
류정형
Original Assignee
(주)케이티중공업
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Publication date
Application filed by (주)케이티중공업 filed Critical (주)케이티중공업
Publication of WO2010123170A1 publication Critical patent/WO2010123170A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/06—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles
    • B21D5/10—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles for making tubes
    • B21D5/12—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles for making tubes making use of forming-rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D51/00—Making hollow objects
    • B21D51/16—Making hollow objects characterised by the use of the objects
    • B21D51/24—Making hollow objects characterised by the use of the objects high-pressure containers, e.g. boilers, bottles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/08—Making tubes with welded or soldered seams
    • B21C37/083—Supply, or operations combined with supply, of strip material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D37/00—Tools as parts of machines covered by this subclass
    • B21D37/16—Heating or cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/06—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles
    • B21D5/08—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles making use of forming-rollers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

Definitions

  • the present invention relates to a method for manufacturing a drum to withstand high pressure for use in a waste heat recovery device, the drum used in the waste heat recovery device uses a thick steel plate to withstand high temperature and high pressure.
  • the iron plate is heated by using a frequency heat processor, and at the same time, the heated iron plate part is rolled to form a complete drum form through a bending machine, and then the drum is manufactured by welding both parts of the rolled iron plate against each other. It is about a method.
  • waste heat is discharged in the form of waste gas, waste air, waste hot water, and waste steam.
  • the amount of waste heat discharged by the main equipment is 8-20% for various boilers, 10-50% for various drying facilities, Large air conditioning facilities emit 30-50%.
  • waste heat may be difficult to recover economically, but the energy efficiency has been improved by the technology development of the waste heat recovery apparatus including the high pressure drum.
  • the steel plate In order to bend the steel plate in semi-circular form, first, the steel plate is heated and the heated iron plate is bent in two rounds, first and second, so that the steel plate is rolled into a semi-circular shape.
  • the butt parts are welded to each other to form a drum.
  • Non-destructive inspection of the welded parts is then carried out to check whether the drum is manufactured correctly.
  • the furnace temperature is 300 ° C.
  • the iron plate is placed in the furnace for 3 to 4 hours, the entire iron plate is about 300 ° C.
  • the heating method of the iron plate by the existing electric furnace and gas burner takes a considerable time to heat the iron plate, and also due to the characteristics of the container to endure the high pressure due to two welding parts because the iron plate of the semi-circular form is opposed to each other.
  • costs are increasing for welding and non-destructive testing.
  • the present invention has been made in consideration of the problems caused by the prior art as described above, and an object of the present invention for producing a drum used in a waste heat recovery apparatus using a frequency heat processor is not to use a furnace and a burner. It is to perform a quick heat treatment without reducing the cost of heat treatment.
  • the iron plate is heated by the primary transfer means and the heated iron plate is drawn straight into the banding machine by the first transfer means.
  • Rolling work to reduce the number of welding parts and non-destructive inspection can reduce the manufacturing cost of high-pressure drum by rolling the shape, and also safe drum is made, and heated iron plate is straight
  • the purpose is to ensure safety and efficiency of the shop floor by directing inside the machine.
  • the present invention is to provide a method for manufacturing a drum used in the waste heat recovery apparatus for solving the problems as described above, the primary transport means for transferring a thick iron plate 80 mm or more in thickness, and for heat treatment of the iron plate It is provided with a frequency heat processor, a banding machine for rolling operations, a secondary transfer means for transferring the rolled steel plate to a place for welding, and a control box for controlling the series of processes.
  • a steel plate of 80 mm or more is gradually introduced into a frequency heat processor and heated, and a heated iron plate portion immediately after passing through the frequency heat processor is directly rolled into a bending machine to make the iron plate into a drum shape, and immediately After welding both ends, the rolled steel plate can be welded by the secondary feed means.
  • the primary transport means for transferring a thick iron plate 80 mm or more in thickness, and for heat treatment of the iron plate It is provided with a frequency heat processor, a banding machine for rolling operations, a secondary transfer means for transferring the rolled steel plate to a
  • the drum manufactured according to the present invention has only one part of the welded part, so that the safety of the high pressure vessel can be improved compared to the existing part of the welded part, and a method of heating the iron plate using a frequency heat processor is adopted.
  • a method of heating the iron plate using a frequency heat processor is adopted.
  • the manufacturing time of the drum can be shortened, and the iron plate heated by the frequency heat treatment machine is directly introduced into the bending machine so that the iron plate can be rolled. Can be.
  • FIG. 1 is an exemplary view showing a welding method according to a conventional drum manufacturing method.
  • Figure 2 is a perspective view showing a facility for producing a drum for waste heat recovery apparatus of the present invention.
  • Figure 3 is a schematic diagram showing the inside of the bending machine.
  • Figure 4 is an operation example showing a process in which the iron plate is transferred into the banding machine while passing through the frequency heat processor by the primary transfer means.
  • Figure 5 is an exemplary work showing the appearance that the iron plate is rolled inside the bending machine.
  • Figure 6 is another working example showing the appearance that the iron plate is rolled inside the bending machine.
  • FIG. 7 is an embodiment showing a state that the rolled iron plate is discharged from the bending machine.
  • FIG. 8 is a front view of the secondary conveying means.
  • the present invention relates to a method for manufacturing a drum for a waste heat recovery apparatus, and more particularly, a primary transfer means for transferring a thick iron plate having a thickness of 80 mm or more, a frequency heat processor for heating the iron plate, and a bending machine for a rolling operation.
  • Secondary transport means for transporting the rolled iron plate to the place for welding, and a control box for controlling the series process, by the primary transport means to gradually enter the iron plate with a thickness of 80mm or more into the frequency heat processor
  • the heated iron plate immediately after passing through the frequency heat processor enters the inside of the banding machine and rolls to make the iron plate in the form of a drum, and is directly welded to prevent the rolled iron plate from spreading.
  • FIG. 1 is an exemplary view showing a welding method according to a conventional drum manufacturing method.
  • the conventionally manufactured drum is formed by rolling the iron plate 100 in a semi-circular shape, and thus, the welded portion becomes two parts, so that the safety of the drum used in the waste heat recovery apparatus that has to withstand high pressure is a concern for safety. there was.
  • Figure 2 is a perspective view showing a facility for producing a drum for waste heat recovery apparatus of the present invention
  • Figure 3 is a schematic diagram showing the inside of the bending machine.
  • a primary transfer means 1 for transferring a thick iron plate 6 having a thickness of 80 mm or more, and a frequency heat processor for heat treating the iron plate 6 (2), a banding machine (3) for rolling work, a secondary conveying means (4) for transferring the rolled steel plate (6) to a place for welding, and a control box (5) for controlling the series of processes ) Is configured.
  • the process of heating the iron plate 6 having a thickness of 80 mm or more by the primary transfer means 1 gradually enters and heats the frequency heat processor 2 and at the same time the frequency heat treatment.
  • the heated iron plate 6 immediately after passing through the machine 2 enters the inside of the bending machine 3 and is rolled to make the iron plate 6 into a drum shape, and to the secondary conveying means 4. It is characterized in that the iron plate 6 rolled in the drum form to the position that can be welded by welding the end of both ends of the iron plate 6 rolled in the drum form to form a drum form.
  • the steel plate 6 is rolled into a drum form in the bending machine 3 and immediately attached to the temporary welding or fixing bracket. Primary welding shall be carried out at both ends.
  • the interval between the frequency heat processor 2 and the bending machine is configured without being spaced so that the iron plate 6 passing through the frequency heat processor 2 is not cooled in the air.
  • Reference numerals 2a and 2b denote portions for heating the upper and lower surfaces of the iron plate 6 in the frequency heat processor 2, respectively.
  • the frequency heat processor (6) uses a medium frequency to minimize the deformation of the iron plate (6) by uniformly heating the internal and external temperature of the iron plate (6) when heating the iron plate (6) 80 mm or more in thickness, frequency
  • the heating of the iron plate 6 by the frequency heat processor 2 is about 30 minutes-1 hour.
  • the steel plate 6 used in the drum is usually made of A516 and SA302B.
  • A516 is carbon steel, and is generally divided into four grades of 55, 60, 65 and 70.
  • the tensile strength is about 380 to 620 MPa.
  • FIG. 3 is a diagram showing the internal configuration of the bending machine 3 in FIG. 2, and omitting the external form of the bending machine 3.
  • the bending machine 3 of the present invention has an iron plate 6 drawn therein.
  • Auxiliary rollers 32 arranged to be spaced apart are configured.
  • the number of the auxiliary rollers 32 is preferably at least two or more auxiliary rollers 32, as shown in Figures 5 and 6 to be described later.
  • one side of the central axis 311 formed on both ends of the main roller 31 to rotate is bound to the inner surface of the bending machine (3) so that the main roller 31 rotates relative to the central axis (311).
  • the central axis 311 of the other side is not tied.
  • a groove 312 is formed in the end surface of the central shaft 311 of the main roller 31 which is not bound to the bending machine 3, and when the iron door 34 for opening and closing the outlet is completely closed on the exit side.
  • a binding member 341 for binding with the central shaft 311 has a configuration in which the groove 312 is coupled, so that the load and load applied by the main roller 31 in the process of rolling and rolling the iron plate 6. It can support.
  • the main body of the transfer in the bending machine (3) is the auxiliary roller 32, the main roller 31 is rotated by the friction of the iron plate (6) by the rotation of the auxiliary roller (32).
  • An auxiliary handle 343 is configured to allow the main handle 342 and the binding member 341 to be separated from the groove 312 formed in the central axis.
  • the hydraulic cylinder 33 is configured on the other side of the outlet side, it is possible to push the rolled iron plate 6 to the secondary conveying means 4 through the outlet.
  • hydraulic cylinder 33 instead of the hydraulic cylinder 33, other types of devices may be used.
  • the outlet is, of course, a portion which is opened and closed by the iron door 34 and has not been designated by the reference numeral.
  • FIG. 4 is an exemplary view showing a process in which the iron plate is transferred into the banding machine while passing through the frequency heat processor by the primary transfer means
  • FIG. 5 is an exemplary view showing a state in which the iron plate is rolled inside the bending machine.
  • Figure 7 is a working example showing the appearance of the rolled iron plate is discharged from the bending machine.
  • the iron plate 6 has a frequency by the primary transfer means 1. Immediately after passing through the heat treatment unit (2) is transferred to the bending machine (3) configured on the rear of the frequency heat processor (2).
  • the frequency heat processor 2 can heat the upper and lower surfaces of the iron plate 6 simultaneously in the up and down directions so that the iron plate 6 having a thickness of 80 mm or more can be heated more quickly. have.
  • the iron plate (6) passing through the frequency heat processor (2) is configured in the circumferential direction of the main roller 31 and the main roller 31 from the heated portion in the frequency heat processor (2) as shown in FIG.
  • the iron plate 6 is subjected to a rolling operation while being drawn in between the auxiliary rollers 32.
  • the interval between the main roller 31 and the sub-roller 32 depends on the thickness of the rolled drum
  • the iron plate 6 is the diameter of the drum produced because rolling the heated metal has a ductility in the characteristics of the heated metal In order to fit the iron plate 6 should be of an appropriate length by applying the elongation.
  • the length of the iron plate 6 be as small as the length to which the elongation is applied.
  • the primary transport means (1) By configuring the primary transport means (1) to extend to the inner main roller 31 of the bending machine (3) while being transported between the main roller 31 and the auxiliary roller 32, the central axis of the main roller 31 ( The iron plate 6 that rotates 360 ° based on 311 can be rotated more easily by the forcing force of the auxiliary roller 32 and the primary transport means 1.
  • the iron plate 6 rotates 360 ° while wrapping the main roller 31, thereby preventing any deviation from the direction when the iron plate 6 is rolled.
  • the guide member 35 is even more iron plate 6 in the bending machine (3) equipped with a minimum auxiliary roller 32, as shown in Figure 6 is another working example showing the appearance that the iron plate is rolled inside the bending machine. By guiding the rolling direction of) will be able to exhibit its function.
  • auxiliary frequency heat processor 36 between the plurality of secondary rollers 32 is configured to keep the temperature of the heated iron plate 6 is continuously maintained more easily to roll the iron plate (6).
  • the iron plate 6 rolled in the drum form is discharged to the outside by the hydraulic cylinder 33 configured in the bending machine 3 as shown in FIG. 7 and the final welding operation is carried out via the secondary transfer means 4. To get to where it is.
  • welding of the iron plate 6 according to the present invention may be referred to as 1 seam.
  • FIG. 8 is a front view of the secondary conveying means.
  • the secondary conveying means 4 supports the weight of the rolled iron plate 6 in the form of a drum and gradually decreases in diameter from both ends toward the middle point so that the rolled iron plate 6 does not roll sideways. It would be desirable to configure the roller in the form of paper, with a cylindrical roller having a length longer than the width of the rolled steel sheet 6.
  • the side shape of the roller which is the secondary conveying means 4

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Heat Treatment Of Articles (AREA)

Abstract

The present invention relates to a method for manufacturing a drum for a waste heat recovery apparatus, and more specifically, to a method for manufacturing a waste heat recovery apparatus drum using frequency heat treatment, comprising the use of the following system: a first transfer means which transfers a thick iron plate having a thickness of 80 mm or more; the frequency heat treatment machine for the heat treatment of the iron plate; a bending machine for rolling operation; a second transfer means which transfers the rolled iron plate to a position for welding; and a control box which controls said series of procedures. The iron plate having a thickness of 80 mm or more is slowly entered into the frequency heat treatment machine by the first transfer means to be heated, the heated portion of the iron plate just after passing through the frequency heat treatment machine is immediately entered into the bending machine for rolling, thereby forming the iron plate into a drum shape, the drum shaped, rolled iron plate is transferred into a position whereby it can be tack-welded by the second transfer means immediately after placing both end portions of the rolled iron plate adjacent to each other, and both end portions of the iron plate rolled in the drum shape are finally welded to manufacture the iron plate in the drum form.

Description

주파수열처리기를 이용한 폐열회수장치용 드럼 제작방법Drum manufacturing method for waste heat recovery system using frequency heat processor
본 발명은 폐열회수장치에 사용되기 위해 고압을 견디기 위한 드럼을 제작하기 위한 방법에 관한 것으로, 폐열회수장치에 사용되는 드럼은 고온 및 고압에 견디기 위해 두꺼운 철판을 사용하는데 이 드럼을 제작하기 위해 본 발명에서는 철판을 주파수열처리기를 이용하여 가열하는 동시에 가열된 철판부위를 밴딩머신을 통해 철판을 완전한 드럼형태가 되도록 롤링한 후 롤링된 철판의 양 끝단부를 맞대어 용접부위를 한 부분으로 하여 드럼을 제작하는 방법에 관한 것이다.The present invention relates to a method for manufacturing a drum to withstand high pressure for use in a waste heat recovery device, the drum used in the waste heat recovery device uses a thick steel plate to withstand high temperature and high pressure. In the present invention, the iron plate is heated by using a frequency heat processor, and at the same time, the heated iron plate part is rolled to form a complete drum form through a bending machine, and then the drum is manufactured by welding both parts of the rolled iron plate against each other. It is about a method.
각종 산업에서 폐열은 폐가스, 폐공기, 폐온수, 폐증기들의 형태로 배출되고 있고, 주요 설비별 입열기준 폐열 배출 규모는 각종 보일러의 경우 8∼20%, 각종 건조 설비의 경우 10∼50%, 대형 공조시설의 경우 30∼50%로 배출되고 있다.In various industries, waste heat is discharged in the form of waste gas, waste air, waste hot water, and waste steam.The amount of waste heat discharged by the main equipment is 8-20% for various boilers, 10-50% for various drying facilities, Large air conditioning facilities emit 30-50%.
이와 같은 폐열은 경제적인 차원에서 회수가 어려운 경우가 있으나 고압 드럼을 포함하고 있는 폐열회수장치의 기술개발로 에너지 효율이 향상되고 있다.Such waste heat may be difficult to recover economically, but the energy efficiency has been improved by the technology development of the waste heat recovery apparatus including the high pressure drum.
일반적으로 두꺼운 철판을 드럼형태로 제작하는 방법은 철판을 반원형태로 밴딩한 2개의 철판을 맞대어 용접하는 방법을 채택하여 왔다.In general, a method of manufacturing a thick iron plate in the form of a drum has been adopted a method of welding two iron plates that are banded in a semicircle form.
여기서 철판을 반원형태로 밴딩하기 위해서는 우선 철판의 가열작업과 가열된 철판을 1차 및 2차의 두 차례에 걸쳐 밴딩작업을 하여 철판을 반원형태가 되도록 롤링작업을 한 반원형태의 2개의 철판을 드럼형태가 되도록 맞대어서 맞대어진 부분을 용접하게 된다.In order to bend the steel plate in semi-circular form, first, the steel plate is heated and the heated iron plate is bent in two rounds, first and second, so that the steel plate is rolled into a semi-circular shape. The butt parts are welded to each other to form a drum.
그리고 용접된 부위를 비파괴 검사를 통해 드럼이 올바르게 제작되었는지 검사하게 된다.Non-destructive inspection of the welded parts is then carried out to check whether the drum is manufactured correctly.
이때, 철판을 가열하기 위한 방법으로는 전기로 또는 가스버너를 이용하여 가열하게 된다.At this time, as a method for heating the iron plate is heated using an electric furnace or a gas burner.
특히, 가열로를 이용할 대 가열로를 1시간 정도 가열하면 로의 온도가 300℃가 되며 3∼4시간에 걸쳐서 철판을 가열로에 넣어두면 철판전체가 300℃ 정도가 된다.In particular, when the furnace is heated for about 1 hour when the furnace is used, the furnace temperature is 300 ° C., and when the iron plate is placed in the furnace for 3 to 4 hours, the entire iron plate is about 300 ° C.
상술한 바와 같이 기존의 전기로 및 가스버너에 의한 철판의 가열방식은 철판을 가열하는데 상당한 시간이 소요되며, 또한 반원형태의 철판을 맞대기 때문에 용접부위가 2곳이 되어 고압을 견뎌야 하는 용기의 특성상 안전성에서 문제뿐만 아니라 용접 및 비파괴검사에 대해 비용이 증가하고 있다.As described above, the heating method of the iron plate by the existing electric furnace and gas burner takes a considerable time to heat the iron plate, and also due to the characteristics of the container to endure the high pressure due to two welding parts because the iron plate of the semi-circular form is opposed to each other. In addition to problems with safety, costs are increasing for welding and non-destructive testing.
따라서, 본 발명은 상술한 바와 같은 이전의 기술에서 야기되는 문제점을 고려하여 만들어 진 것으로, 주파수열처리기를 이용한 폐열회수장치에 사용되는 드럼을 제작하기 위한 본 발명의 목적은 가열로와 버너를 사용하지 않고 빠른 열처리를 수행하는 것과 열처리비용을 감소하는 것이다.Accordingly, the present invention has been made in consideration of the problems caused by the prior art as described above, and an object of the present invention for producing a drum used in a waste heat recovery apparatus using a frequency heat processor is not to use a furnace and a burner. It is to perform a quick heat treatment without reducing the cost of heat treatment.
또 다른 주파수열처리기를 이용한 폐열회수장치에 사용되는 드럼제작방법을 제공하는 본 발명의 목적은 1차 이송수단에 의해 철판이 주파수열처리기를 통해 가열되는 동시에 가열된 철판이 밴딩머신으로 곧장 인입되어 완전한 드럼형태가 되도록 롤링작업을 함으로써 용접부위가 한 부분으로 되도록 하여 용접공정 및 비파괴검사 회수를 줄여 고압드럼의 제작비용을 절감할 수 있고, 게다가 안전성이 있는 드럼이 제작되며, 또한 가열된 철판은 곧장 밴딩머신 내부로 향하도록 함으로써 작업현장의 안전성과 효율성을 가지도록 하는데 그 목적이 있다.It is an object of the present invention to provide a drum manufacturing method used in a waste heat recovery apparatus using another frequency heat processor. The iron plate is heated by the primary transfer means and the heated iron plate is drawn straight into the banding machine by the first transfer means. Rolling work to reduce the number of welding parts and non-destructive inspection can reduce the manufacturing cost of high-pressure drum by rolling the shape, and also safe drum is made, and heated iron plate is straight The purpose is to ensure safety and efficiency of the shop floor by directing inside the machine.
본 발명은 상술한 바와 같은 문제점을 해결하기 위한 본 발명은 폐열회수장치에 사용되는 드럼을 제작하는 방법을 제공하는 것으로, 두께 80mm 이상의 두꺼운 철판을 이송하는 1차 이송수단과, 철판을 열처리하기 위한 주파수열처리기와, 롤링 작업을 위한 밴딩머신과, 롤링된 철판을 용접하기 위한 곳으로 이송시키는 2차 이송수단과, 상기 일련의 과정을 제어하는 제어박스로 구비하여, 상기 1차 이송수단에 의해 두께 80mm 이상의 철판을 서서히 주파수열처리기에 진입시켜 가열시키는 동시에 상기 주파수열처리기를 통과한 직후의 가열된 철판부위를 곧장 밴딩머신 내부로 진입시켜 롤링 작업함으로써 상기 철판을 드럼형태가 되도록 하고, 곧바로 롤링된 철판의 양 끝단부를 가접한 후 2차 이송수단에 의해 드럼형태로 롤링된 철판이 용접할 수 있는 위치로 이송하여 드럼형태로 롤링된 철판의 양 끝단부를 최종 용접함으로써 철판을 드럼형태가 되게 제작하도록 하는 것이다.The present invention is to provide a method for manufacturing a drum used in the waste heat recovery apparatus for solving the problems as described above, the primary transport means for transferring a thick iron plate 80 mm or more in thickness, and for heat treatment of the iron plate It is provided with a frequency heat processor, a banding machine for rolling operations, a secondary transfer means for transferring the rolled steel plate to a place for welding, and a control box for controlling the series of processes. A steel plate of 80 mm or more is gradually introduced into a frequency heat processor and heated, and a heated iron plate portion immediately after passing through the frequency heat processor is directly rolled into a bending machine to make the iron plate into a drum shape, and immediately After welding both ends, the rolled steel plate can be welded by the secondary feed means. In order to produce the iron plate in the drum form by the final welding of both ends of the iron plate rolled in the drum form by transferring to the teeth.
본 발명에 의해 제작된 드럼은 용접부위가 1부분만 존재하므로 기존의 용접부위가 2부분이 존재하는 것에 비해 고압용기의 특성상 안전성을 높일 수 있으며, 주파수열처리기를 이용하여 철판을 가열하는 방법을 채택함으로써 가열시간을 단축하여 드럼의 제작시간을 단축할 수 있으며, 주파수열처리기에 의해 가열된 철판부위가 곧장 밴딩머신 내부로 인입되어 철판이 롤링되게 하기 때문에 제작공정시 작업자도 상당히 안전한 공간에서 작업을 할 수 있다.The drum manufactured according to the present invention has only one part of the welded part, so that the safety of the high pressure vessel can be improved compared to the existing part of the welded part, and a method of heating the iron plate using a frequency heat processor is adopted. By shortening the heating time, the manufacturing time of the drum can be shortened, and the iron plate heated by the frequency heat treatment machine is directly introduced into the bending machine so that the iron plate can be rolled. Can be.
도 1은 종래의 드럼 제작방법에 의한 용접방법을 나타낸 예시도.1 is an exemplary view showing a welding method according to a conventional drum manufacturing method.
도 2는 본 발명의 폐열회수장치용 드럼을 제작하기 위한 설비를 나타낸 사시도.Figure 2 is a perspective view showing a facility for producing a drum for waste heat recovery apparatus of the present invention.
도 3은 밴딩머신 내부를 나타낸 개요도.Figure 3 is a schematic diagram showing the inside of the bending machine.
도 4는 1차 이송수단에 의해 철판이 주파수열처리기를 통과하면서 밴딩머신 내부로 이송되는 과정을 나타낸 작업 예시도.Figure 4 is an operation example showing a process in which the iron plate is transferred into the banding machine while passing through the frequency heat processor by the primary transfer means.
도 5는 밴딩머신의 내부에서 철판이 롤링되는 모습을 나타낸 작업 예시도.Figure 5 is an exemplary work showing the appearance that the iron plate is rolled inside the bending machine.
도 6은 밴딩머신의 내부에서 철판이 롤링되는 모습을 나타낸 또 다른 작업 예시도.Figure 6 is another working example showing the appearance that the iron plate is rolled inside the bending machine.
도 7은 밴딩머신에서 롤링된 철판이 배출되는 모습을 나타낸 실시도.7 is an embodiment showing a state that the rolled iron plate is discharged from the bending machine.
도 8은 2차 이송수단의 정면도.8 is a front view of the secondary conveying means.
본 발명은 폐열회수장치용 드럼을 제작하는 방법에 관한 것으로, 보다 상세하게는 두께 80mm 이상의 두꺼운 철판을 이송하는 1차 이송수단과, 철판을 가열하기 위한 주파수열처리기와, 롤링 작업을 위한 밴딩머신과, 롤링된 철판을 용접하기 위한 곳으로 이송시키는 2차 이송수단과, 상기 일련의 과정을 제어하는 제어박스로 구비하여, 상기 1차 이송수단에 의해 두께 80mm 이상의 철판을 서서히 주파수열처리기에 진입시켜 가열시키는 동시에 상기 주파수열처리기를 통과한 직후의 가열된 철판부위를 곧장 밴딩머신 내부로 진입시켜 롤링 작업함으로써 상기 철판을 드럼형태가 되도록 하고, 롤링된 철판이 펴지는 것을 방지하기 위하여 곧장 가접한 후, 2차 이송수단에 의해 드럼형태로 롤링된 철판이 용접할 수 있는 위치로 이송하여 드럼형태로 롤링된 철판이 맞닿는 양 끝단부를 용접함으로써 철판을 드럼형태가 되게 제작하는 것이 특징인 주파수열처리기를 이용한 폐열회수장치용 드럼 제작방법에 관한 것이다.The present invention relates to a method for manufacturing a drum for a waste heat recovery apparatus, and more particularly, a primary transfer means for transferring a thick iron plate having a thickness of 80 mm or more, a frequency heat processor for heating the iron plate, and a bending machine for a rolling operation. Secondary transport means for transporting the rolled iron plate to the place for welding, and a control box for controlling the series process, by the primary transport means to gradually enter the iron plate with a thickness of 80mm or more into the frequency heat processor At the same time, the heated iron plate immediately after passing through the frequency heat processor enters the inside of the banding machine and rolls to make the iron plate in the form of a drum, and is directly welded to prevent the rolled iron plate from spreading. Iron rolled in the form of a drum by transferring to a position where the steel plate rolled in the form of a drum can be welded by the vehicle transport means. It relates to a drum manufacturing method for a waste heat recovery device using a frequency heat processor characterized in that the iron plate is produced in a drum form by welding both ends of the plate abutment.
상술한 목적을 가지는 본 발명의 주파수열처리기를 이용한 폐열회수장치용 드럼을 제작하는 방법을 첨부한 도면에 의해 상세히 설명하면 다음과 같다.The method for producing a drum for waste heat recovery apparatus using the frequency heat processor of the present invention having the above-described purpose will be described in detail with reference to the accompanying drawings.
도 1은 종래의 드럼 제작방법에 의한 용접방법을 나타낸 예시도이다.1 is an exemplary view showing a welding method according to a conventional drum manufacturing method.
도 1에 도시된 바와 같이 종래에 제작되는 드럼은 반원형태로 철판(100)을 롤링하여 하므로, 용접부위는 두 부분이 되게 되어 고압을 견뎌야 하는 폐열회수장치에 사용되는 드럼의 특성상 안전성에 우려가 있었다.As shown in FIG. 1, the conventionally manufactured drum is formed by rolling the iron plate 100 in a semi-circular shape, and thus, the welded portion becomes two parts, so that the safety of the drum used in the waste heat recovery apparatus that has to withstand high pressure is a concern for safety. there was.
도 1과 도 7의 도면부호 A는 용접 부위를 나타낸 것이다.1 and 7 denotes a welded portion.
도 2는 본 발명의 폐열회수장치용 드럼을 제작하기 위한 설비를 나타낸 사시도이며, 도 3은 밴딩머신 내부를 나타낸 개요도이다.Figure 2 is a perspective view showing a facility for producing a drum for waste heat recovery apparatus of the present invention, Figure 3 is a schematic diagram showing the inside of the bending machine.
도 2에 도시된 바와 같이 본원 발명의 폐열회수장치용 드럼의 제작하기 위해서는 두께 80mm 이상의 두꺼운 철판(6)을 이송하는 1차 이송수단(1)과, 철판(6)을 열처리하기 위한 주파수열처리기(2)와, 롤링 작업을 위한 밴딩머신(3)과, 롤링된 철판(6)을 용접하기 위한 곳으로 이송시키는 2차 이송수단(4)과, 상기 일련의 과정을 제어하는 제어박스(5)가 구성된다.As shown in FIG. 2, in order to manufacture the drum for the waste heat recovery apparatus of the present invention, a primary transfer means 1 for transferring a thick iron plate 6 having a thickness of 80 mm or more, and a frequency heat processor for heat treating the iron plate 6 (2), a banding machine (3) for rolling work, a secondary conveying means (4) for transferring the rolled steel plate (6) to a place for welding, and a control box (5) for controlling the series of processes ) Is configured.
상기 구성된 장치에 의해 철판이 드럼형태가 되는 과정을 간략히 설명하면 상기 1차 이송수단(1)에 의해 두께 80mm 이상의 철판(6)을 서서히 주파수열처리기(2)에 진입시켜 가열시키는 동시에 상기 주파수열처리기(2)를 통과한 직후의 가열된 철판(6)부위를 곧장 밴딩머신(3) 내부로 진입시켜 롤링 작업함으로써 상기 철판(6)을 드럼형태가 되도록 하고, 2차 이송수단(4)에 의해 드럼형태로 롤링된 철판(6)이 용접할 수 있는 위치로 이송하여 드럼형태로 롤링된 철판(6)의 양 끝단부를 최종 용접함으로써 철판(6)을 드럼형태가 되게 제작하는 것이 특징이다.When the iron plate is formed in a drum form by the above-described device, the process of heating the iron plate 6 having a thickness of 80 mm or more by the primary transfer means 1 gradually enters and heats the frequency heat processor 2 and at the same time the frequency heat treatment. The heated iron plate 6 immediately after passing through the machine 2 enters the inside of the bending machine 3 and is rolled to make the iron plate 6 into a drum shape, and to the secondary conveying means 4. It is characterized in that the iron plate 6 rolled in the drum form to the position that can be welded by welding the end of both ends of the iron plate 6 rolled in the drum form to form a drum form.
이때, 롤링된 철판(6)이 2차 이송수단에 의해 이송 중 펴지거나 형태가 변형되는 것을 방지하기 위하여 철판(6)을 밴딩머신(3)에서 드럼형태로 롤링한 후 곧바로 가접 또는 고정브라켓을 양끝단부에 대어 1차 용접을 하여야 한다.At this time, in order to prevent the rolled iron plate 6 from being stretched or deformed during the transfer by the secondary conveying means, the steel plate 6 is rolled into a drum form in the bending machine 3 and immediately attached to the temporary welding or fixing bracket. Primary welding shall be carried out at both ends.
또한, 상기 주파수열처리기(2)와 밴딩머신의 간격은 주파수열처리기(2)를 통과한 철판(6)이 공기 중에서 냉각되지 않게 하기 위하여 간격을 두지 않고 구성하는 것이 바람직할 것이다.In addition, it is preferable that the interval between the frequency heat processor 2 and the bending machine is configured without being spaced so that the iron plate 6 passing through the frequency heat processor 2 is not cooled in the air.
도면부호 2a와 2b는 각각 주파수열처리기(2)에서 철판(6)의 상면을 가열하는 부분과 하면을 가열하는 부분을 나타낸 것이다. Reference numerals 2a and 2b denote portions for heating the upper and lower surfaces of the iron plate 6 in the frequency heat processor 2, respectively.
상기 주파수열처리기(6)는 중주파를 사용하는 데 이는 두께 80mm 이상의 철판(6)을 가열시 철판(6)의 내외부 온도를 균일하게 가열함으로써 철판(6)의 변형이 최소화되게 하기 위한 것으로, 주파수가 높을수록 철판(6)의 표면에만 급격하게 온도변화 되어 철판(6)의 내외부의 응력의 변화에 따른 열변형이 되기 쉬우며, 저주파의 경우 내부까지 서서히 가열시킬 수 있는 반면에, 유도가열의 특성상 가열시간이 오래 걸리기 때문이다.The frequency heat processor (6) uses a medium frequency to minimize the deformation of the iron plate (6) by uniformly heating the internal and external temperature of the iron plate (6) when heating the iron plate (6) 80 mm or more in thickness, frequency The higher the temperature is, the more rapidly the temperature changes only on the surface of the iron plate 6, which is more likely to become thermally deformed due to the change in the internal and external stresses of the iron plate 6, and in the case of the low frequency, it can be gradually heated to the inside, This is because the heating takes a long time due to the characteristics.
보통 주파수열처리기(2)에 의한 철판(6)의 가열은 30분 내지 1시간 전후가 된다.Usually, the heating of the iron plate 6 by the frequency heat processor 2 is about 30 minutes-1 hour.
드럼에 사용되는 철판(6)의 재질은 보통 A516, SA302B를 사용하며, A516은 탄소강으로서 보통 55, 60, 65, 70의 4개의 등급으로 나누어지며, 인장강도는 380∼620MPa 정도이다.The steel plate 6 used in the drum is usually made of A516 and SA302B. A516 is carbon steel, and is generally divided into four grades of 55, 60, 65 and 70. The tensile strength is about 380 to 620 MPa.
도 3은 도 2에서 밴딩머신의 내부구성을 나타내기 위하여 밴딩머신(3)의 외부형태를 생략한 것으로 도 3에 도시된 것과 같이 본 발명의 밴딩머신(3)은 내부로 인입되는 철판(6)을 드럼형태로 롤링되게 제작하기 위하여 드럼형태가 되는 철판(6)의 내부 지름의 크기를 좌우하는 주롤러(31)와 상기 주롤러(31)의 원주방향에 주롤러(31)와는 일정거리 이격된 간격을 가지게 배치된 보조롤러(32)가 구성되어 있다.3 is a diagram showing the internal configuration of the bending machine 3 in FIG. 2, and omitting the external form of the bending machine 3. As illustrated in FIG. 3, the bending machine 3 of the present invention has an iron plate 6 drawn therein. ) A certain distance from the main roller 31 and the main roller 31 in the circumferential direction of the main roller 31 to determine the size of the inner diameter of the iron plate (6) in the drum form in order to be rolled in the drum form Auxiliary rollers 32 arranged to be spaced apart are configured.
상기 보조롤러(32)의 개수는 후술할 도 5 및 도 6에 도시된 것과 같이 최소 둘 이상의 보조롤러(32)가 구성되는 것이 바람직하다.The number of the auxiliary rollers 32 is preferably at least two or more auxiliary rollers 32, as shown in Figures 5 and 6 to be described later.
한편, 회전하는 주롤러(31)의 양단부에 구성된 중심축(311) 중 일 측은 주롤러(31)가 중심축(311)을 기준으로 하여 회전하도록 밴딩머신(3)의 내측면과 결속되어 있고 타측의 중심축(311)은 결속되어 있지 않다.On the other hand, one side of the central axis 311 formed on both ends of the main roller 31 to rotate is bound to the inner surface of the bending machine (3) so that the main roller 31 rotates relative to the central axis (311). The central axis 311 of the other side is not tied.
상기 밴딩머신(3)과 결속되어 있지 않은 주롤러(31)의 중심축(311)의 단면에는 요홈(312)이 형성되어 있으며, 출구측에 출구를 개폐하는 철문(34)이 완전히 닫혔을 때 중심축(311)과 결속되기 위한 결속부재(341)가 상기 요홈(312)과 결속되는 구성을 가지게 되어, 철판(6)을 압연 및 롤링하는 과정에서 주롤러(31)에 의해 걸리는 부하 및 하중을 지탱할 수 있게 된다.A groove 312 is formed in the end surface of the central shaft 311 of the main roller 31 which is not bound to the bending machine 3, and when the iron door 34 for opening and closing the outlet is completely closed on the exit side. A binding member 341 for binding with the central shaft 311 has a configuration in which the groove 312 is coupled, so that the load and load applied by the main roller 31 in the process of rolling and rolling the iron plate 6. It can support.
일반적으로 밴딩머신(3)에서의 이송의 주체는 보조롤러(32)가 되며 주롤러(31)는 보조롤러(32)의 회전에 의해 철판(6)의 마찰에 의해 회전하는 것이다.In general, the main body of the transfer in the bending machine (3) is the auxiliary roller 32, the main roller 31 is rotated by the friction of the iron plate (6) by the rotation of the auxiliary roller (32).
상기 철문(34)의 개폐 및 중심축(311)으로부터 결속부재(341)가 결속 및 분리되는 것을 제어박스(5)에 의해 자동제어 가능하나, 비상시를 대비해 수동으로 철문(34)의 개폐를 행하는 주핸들(342)과 결속부재(341)가 중심축에 형성된 요홈(312)으로부터 이탈되게 행하는 보조핸들(343)이 구성되어 있다.It is possible to automatically control the opening and closing of the iron door 34 and the binding member 341 from the central shaft 311 by the control box 5, but to manually open and close the iron door 34 in case of emergency. An auxiliary handle 343 is configured to allow the main handle 342 and the binding member 341 to be separated from the groove 312 formed in the central axis.
또한, 출구측의 타측면에는 유압실린더(33)가 구성되어 있어서 롤링작업이 끝난 철판(6)을 출구를 통해 2차 이송수단(4)으로 밀어낼 수 있게 된다.In addition, the hydraulic cylinder 33 is configured on the other side of the outlet side, it is possible to push the rolled iron plate 6 to the secondary conveying means 4 through the outlet.
상기 유압실린더(33)를 대신하여 다른 형태의 장치를 사용할 수도 있다.Instead of the hydraulic cylinder 33, other types of devices may be used.
출구는 당연히 철문(34)에 의해 개폐되는 부분으로 본 명세서에서는 도면부호를 지정하지 않았다.The outlet is, of course, a portion which is opened and closed by the iron door 34 and has not been designated by the reference numeral.
도 4는 1차 이송수단에 의해 철판이 주파수열처리기를 통과하면서 밴딩머신 내부로 이송되는 과정을 나타낸 작업 예시도이며, 도 5는 밴딩머신의 내부에서 철판이 롤링되는 모습을 나타낸 작업 예시도이고, 도 7은 밴딩머신에서 롤링된 철판이 배출되는 모습을 나타낸 작업 예시도이다.FIG. 4 is an exemplary view showing a process in which the iron plate is transferred into the banding machine while passing through the frequency heat processor by the primary transfer means, and FIG. 5 is an exemplary view showing a state in which the iron plate is rolled inside the bending machine. Figure 7 is a working example showing the appearance of the rolled iron plate is discharged from the bending machine.
도 4, 도 5, 도 7은 본 발명의 폐열회수장치용 드럼을 제작하기 위한 일련의 과정을 나타낸 것으로서, 도 4에 도시된 바와 같이 철판(6)은 1차 이송수단(1)에 의해 주파수열처리기(2)를 통과하는 즉시 상기 주파수열처리기(2)의 후면에 구성된 밴딩머신(3)으로 이송되게 된다.4, 5, and 7 show a series of processes for manufacturing the drum for the waste heat recovery apparatus of the present invention. As shown in FIG. 4, the iron plate 6 has a frequency by the primary transfer means 1. Immediately after passing through the heat treatment unit (2) is transferred to the bending machine (3) configured on the rear of the frequency heat processor (2).
도 5에 도시된 바와 같이 주파수열처리기(2)는 상·하방향에서 동시에 철판(6)의 상·하면을 가열할 수 있도록 하여 80mm 이상의 두께를 가지는 철판(6)이라도 보다 신속하게 가열할 수 있다.As shown in FIG. 5, the frequency heat processor 2 can heat the upper and lower surfaces of the iron plate 6 simultaneously in the up and down directions so that the iron plate 6 having a thickness of 80 mm or more can be heated more quickly. have.
그리고 주파수열처리기(2)를 통과한 철판(6)은 도 5에 도시된 바와 같이 주파수열처리기(2)에서 가열된 부분부터 주롤러(31)와 상기 주롤러(31)의 원주방향에 구성된 보조롤러(32)의 사이로 인입되면서 철판(6)은 롤링작업을 거치게 된다.And the iron plate (6) passing through the frequency heat processor (2) is configured in the circumferential direction of the main roller 31 and the main roller 31 from the heated portion in the frequency heat processor (2) as shown in FIG. The iron plate 6 is subjected to a rolling operation while being drawn in between the auxiliary rollers 32.
이때, 주롤러(31)와 보조롤러(32)의 간격은 철판(6)이 롤링된 드럼의 두께를 좌우하는 것으로 가열된 금속을 압연하면 가열된 금속의 특성상 연성을 가지기 때문에 제작되는 드럼의 지름에 맞도록 철판(6)은 연신율을 적용하여 적정한 길이로 하여야 할 것이다.At this time, the interval between the main roller 31 and the sub-roller 32 depends on the thickness of the rolled drum, the iron plate 6 is the diameter of the drum produced because rolling the heated metal has a ductility in the characteristics of the heated metal In order to fit the iron plate 6 should be of an appropriate length by applying the elongation.
다시 말해 철판(6)의 길이는 연신율이 적용되어 늘어나는 길이만큼 작아야 하는 것이 바람직할 것이다.In other words, it is preferable that the length of the iron plate 6 be as small as the length to which the elongation is applied.
그리고 1차 이송수단(1)을 밴딩머신(3)의 내부 주롤러(31)까지 이어지도록 구성함으로써 주롤러(31)와 보조롤러(32) 사이에서 이송되면서 주롤러(31)의 중심축(311)을 기준으로 360° 회전하는 철판(6)이 보조롤러(32)와 1차 이송수단(1)의 강제력에 의해 보다 쉽게 회전할 수 있도록 하고 있다.And by configuring the primary transport means (1) to extend to the inner main roller 31 of the bending machine (3) while being transported between the main roller 31 and the auxiliary roller 32, the central axis of the main roller 31 ( The iron plate 6 that rotates 360 ° based on 311 can be rotated more easily by the forcing force of the auxiliary roller 32 and the primary transport means 1.
또한, 주롤러(31)의 원주변에 구성된 첫 번째 보조롤러(32)와 두 번째 보조롤러(32) 사이에 철판(6)과 접촉되는 면이 원형으로 롤링되도록 곡선의 안내면을 가지는 안내부재(35)를 구성하여 철판(6)이 주롤러(31)를 감싸면서 360°회전하게 함으로써 철판(6)이 롤링될 때 혹시 모를 방향이탈을 미연에 방지하고 있다.In addition, a guide member having a curved guide surface between the first auxiliary roller 32 and the second auxiliary roller 32 constituted around the main roller 31 and the second auxiliary roller 32 to be rolled in a circular shape. By constructing 35, the iron plate 6 rotates 360 ° while wrapping the main roller 31, thereby preventing any deviation from the direction when the iron plate 6 is rolled.
상기 안내부재(35)는 도 6은 밴딩머신의 내부에서 철판이 롤링되는 모습을 나타낸 또 다른 작업 예시도에 나타난 것처럼 최소의 보조롤러(32)가 갖추어진 밴딩머신(3)에서 더욱더 철판(6)의 롤링방향을 안내함으로써 그 기능을 발휘할 수 있을 것이다.The guide member 35 is even more iron plate 6 in the bending machine (3) equipped with a minimum auxiliary roller 32, as shown in Figure 6 is another working example showing the appearance that the iron plate is rolled inside the bending machine. By guiding the rolling direction of) will be able to exhibit its function.
한편, 다수개가 구성된 보조롤러(32)의 사이에 보조 주파수열처리기(36)를 구성하여 가열된 철판(6)의 온도가 지속적으로 유지되어 보다 수월하게 철판(6)이 롤링되게 하였다.On the other hand, by configuring the auxiliary frequency heat processor 36 between the plurality of secondary rollers 32 is configured to keep the temperature of the heated iron plate 6 is continuously maintained more easily to roll the iron plate (6).
드럼형태로 롤링된 철판(6)은 도 7에 도시된 바와 같이 밴딩머신(3)의 내부에 구성된 유압실린더(33)에 의해 외부로 배출되어 2차 이송수단(4)을 거쳐 최종 용접작업이 이루어지는 곳으로 이동하게 된다.The iron plate 6 rolled in the drum form is discharged to the outside by the hydraulic cylinder 33 configured in the bending machine 3 as shown in FIG. 7 and the final welding operation is carried out via the secondary transfer means 4. To get to where it is.
이때, 2차 이송수단(4)에 의해 최종 용접작업이 이루어지는 곳으로 이송되기 전에 드럼형태가 변형 또는 롤링된 철판(6)이 변형되는 것을 방지하기 위하여 롤링된 철판(6)의 가접 또는 브라켓 용접을 곧바로 실시가 되어야 한다.At this time, the temporary welding or bracket welding of the rolled steel plate 6 to prevent the deformation of the drum form or the rolled iron plate 6 is deformed before being transferred to the place where the final welding operation is performed by the secondary transport means 4. Should be implemented immediately.
롤링된 철판(6)은 거의 완전한 드럼형태를 지니고 있기 때문에 용접부위는 철판(6)의 양 끝단부과 맞닿는 한 부분만 존재하게 된다.Since the rolled iron plate 6 has a nearly complete drum shape, there is only one portion of the welded portion that comes into contact with both ends of the iron plate 6.
용접부위를 흔히 seam이라는 표현을 하기 때문에 본 발명에 의한 철판(6)의 용접은 1seam이라고 할 수 있다.Since the welding part is often referred to as seam, welding of the iron plate 6 according to the present invention may be referred to as 1 seam.
도 8은 2차 이송수단의 정면도이다.8 is a front view of the secondary conveying means.
도 8에 도시된 바와 같이 2차 이송수단(4)은 드럼형태로 롤링된 철판(6)의 무게도 지탱하면서도 롤링된 철판(6)이 옆으로 구르지 않도록 양단부로부터 중간지점으로 갈수록 지름이 점차 작아지는 형태의 롤러로서 롤링된 철판(6)의 너비보다는 긴 길이를 가지는 원통형의 롤러로 구성하는 것이 바람직할 것이다.As shown in FIG. 8, the secondary conveying means 4 supports the weight of the rolled iron plate 6 in the form of a drum and gradually decreases in diameter from both ends toward the middle point so that the rolled iron plate 6 does not roll sideways. It would be desirable to configure the roller in the form of paper, with a cylindrical roller having a length longer than the width of the rolled steel sheet 6.
더욱더 바람직하게는 2차 이송수단(4)인 롤러의 측면형태는 2차 방정식의 곡선형태를 가지는 것이 좋을 것이다.Even more preferably, the side shape of the roller, which is the secondary conveying means 4, may have a curved shape of the quadratic equation.

Claims (11)

  1. 폐열회수장치용 드럼을 제작하는 방법에 있어서,In the method for producing a drum for waste heat recovery device,
    두께 80mm 이상의 두꺼운 철판(6)을 이송하는 1차 이송수단(1)과, 철판(6)을 열처리하기 위한 주파수열처리기(2)와, 롤링 작업을 위한 밴딩머신(3)과, 롤링된 철판(6)을 용접하기 위한 곳으로 이송시키는 2차 이송수단(4)과, 상기 일련의 과정을 제어하는 제어박스(5)로 구비하여, 상기 1차 이송수단(1)에 의해 두께 80mm 이상의 철판(6)을 서서히 주파수열처리기(2)에 진입시켜 가열시키는 동시에 상기 주파수열처리기(2)를 통과한 직후의 가열된 철판(6)부위를 곧장 밴딩머신(3) 내부로 진입시켜 롤링 작업함으로써 상기 철판(6)을 드럼형태가 되도록 하고, 곧바로 롤링된 철판(6)의 양 끝단부를 가접한 후 2차 이송수단에 의해 드럼형태로 롤링된 철판(6)이 용접할 수 있는 위치로 이송하여 드럼형태로 롤링된 철판(6)의 양 끝단부를 최종 용접함으로써 철판(6)을 드럼형태가 되게 제작하는 것이 특징인 주파수열처리기를 이용한 폐열회수장치용 드럼 제작방법.Primary conveying means (1) for conveying a thick iron plate (6) having a thickness of 80 mm or more, a frequency heat processor (2) for heat treatment of the iron plate (6), a bending machine (3) for rolling work, and a rolled iron plate (6) provided with a secondary conveying means (4) for transferring to the place for welding, and a control box (5) for controlling the series of processes, by the primary conveying means (1) an iron plate having a thickness of 80mm or more By gradually entering (6) into the frequency heat processor (2) and heating it, the heated iron plate (6) immediately after passing through the frequency heat processor (2) immediately enters into the bending machine (3) and rolls to work. The iron plate 6 to be in the form of a drum, immediately welded to both ends of the rolled iron plate (6) and then transferred to a position where the iron plate (6) rolled in the form of a drum by the second conveying means can be welded. The iron plate 6 is drum-shaped by final welding of both ends of the iron plate 6 rolled in the drum form. It is to be produced is a waste heat recovery device for making the drum method Using a characteristic frequency heat treatment.
  2. 제 1항에 있어서,The method of claim 1,
    상기 주파수열처리기(2)와 밴딩머신(3)의 간격은 주파수열처리기(2)를 통과한 철판(6)이 공기 중에서 냉각되지 않게 하기 위하여 간격을 두지 않고 구성되는 것이 특징인 주파수열처리기를 이용한 폐열회수장치용 드럼 제작방법.The interval between the frequency heat processor (2) and the banding machine (3) is characterized in that the iron plate (6) passing through the frequency heat processor (2) is configured without a space to prevent cooling in the air using a frequency heat processor Drum manufacturing method for waste heat recovery device.
  3. 제 1항에 있어서,The method of claim 1,
    상기 주파수열처리기(2)는 80mm 이상의 두꺼운 철판(6)을 신속히 가열하기 위해 동시에 철판(6)의 상·하면을 가열시킬 수 있는 것이 특징인 주파수열처리기를 이용한 폐열회수장치용 드럼 제작방법.The frequency heat processor (2) is a drum manufacturing method for a waste heat recovery device using a frequency heat processor, characterized in that to heat the upper and lower surfaces of the iron plate (6) at the same time in order to quickly heat the thick iron plate (6) of 80mm or more.
  4. 제 1항에 있어서,The method of claim 1,
    상기 주파수열처리기(2)의 주파수 범위 대는 500∼5000Hz의 중주파인 것이 특징인 주파수열처리기를 이용한 폐열회수장치용 드럼 제작방법.The frequency range of the frequency heat processor (2) is a drum manufacturing method for a waste heat recovery device using a frequency heat processor, characterized in that the medium frequency of 500 ~ 5000Hz.
  5. 제 1항에 있어서,The method of claim 1,
    상기 밴딩머신(3)은 내부로 인입되는 철판(6)을 드럼형태로 롤링 되게 제작하기 위하여 드럼형태가 되는 철판(6)의 내부 지름의 크기를 좌우하는 주롤러(31)와 상기 주롤러(31)의 원주방향에 주롤러(31)와는 일정거리 이격된 간격을 가지게 배치된 최소 두 개 이상의 보조롤러(32)가 구성되어 상기 주롤러(31)와 보조롤러(32)의 간격사이로 철판(6)이 이송되게 함으로써 철판(6)이 드럼형태로 롤링 되는 것이 특징인 주파수열처리기를 이용한 폐열회수장치용 드럼 제작방법.The bending machine (3) is the main roller 31 and the main roller (31) which influences the size of the inner diameter of the iron plate (6) in the form of a drum in order to produce the iron plate (6) drawn into the drum form At least two auxiliary rollers 32 are arranged in the circumferential direction of the main roller 31 with a predetermined distance spaced apart from each other to form a steel plate between the main rollers 31 and the auxiliary rollers 32. 6) is a drum manufacturing method for a waste heat recovery device using a frequency heat processor characterized in that the iron plate (6) is rolled in the form of a drum.
  6. 제 5항에 있어서,The method of claim 5,
    상기 밴딩머신(3)의 주롤러(31)의 원주방향에 구성된 첫 번째 보조롤러(32)와 두 번째의 보조롤러(32) 사이에는 철판(6)이 드럼형태로 롤링되도록 안내하기 위해 곡면을 가지는 안내부재(35)가 구성된 것이 특징인 주파수열처리기를 이용한 폐열회수장치용 드럼 제작방법.Between the first sub-roller 32 and the second sub-roller 32 configured in the circumferential direction of the main roller 31 of the bending machine 3 to guide the iron plate 6 to be rolled in the form of a drum Drum manufacturing method for a waste heat recovery device using a frequency heat processor characterized in that the guide member having a 35.
  7. 제 5항에 있어서,The method of claim 5,
    상기 주롤러(31)의 원주방향에 배치된 보조롤러(32)와 보조롤러(32)의 사이에는 가열된 철판(6)을 가열된 상태로 유지하기 위한 보조 주파수열처리기(36)가 구성된 것이 특징인 주파수열처리기를 이용한 폐열회수장치용 드럼 제작방법.Between the auxiliary roller 32 and the auxiliary roller 32 disposed in the circumferential direction of the main roller 31, an auxiliary frequency heat processor 36 for maintaining the heated iron plate 6 in a heated state is configured. Drum manufacturing method for waste heat recovery apparatus using a frequency heat treatment.
  8. 제 5항에 있어서,The method of claim 5,
    상기 주롤러(31)는 양단부의 중심에 구성된 중심축(311) 중 일측은 주롤러(31)가 중심축(311)을 기준 축으로 하여 회전하도록 밴딩머신(3)의 내측면과 결속되어 있고 타측의 중심축(311)은 결속되어 있지 않은 것이 특징인 주파수열처리기를 이용한 폐열회수장치용 드럼 제작방법.The main roller 31 is one side of the central shaft 311 formed in the center of both ends is bound to the inner surface of the bending machine 3 so that the main roller 31 rotates about the central axis 311 as a reference axis. A drum manufacturing method for the waste heat recovery apparatus using the frequency heat processor, characterized in that the other center axis (311) is not bound.
  9. 제 1항에 있어서,The method of claim 1,
    상기 밴딩머신(3)의 양 측면 중에 일 측면에는 상기 밴딩머신(3)의 내부에서 롤링된 철판(6)을 타 측면에 구성된 출구 측을 통해 외부로 밀어내기 위하여 유압실린더(33)가 구성되어 있는 것이 특징인 주파수열처리기를 이용한 폐열회수장치용 드럼 제작방법.One side of both sides of the bending machine 3, the hydraulic cylinder 33 is configured to push the iron plate 6 rolled in the interior of the bending machine 3 to the outside through the outlet side configured on the other side Drum manufacturing method for the waste heat recovery apparatus using a frequency heat processor.
  10. 제 8항 및 제 9항에 있어서,The method according to claim 8 and 9,
    상기 밴딩머신(3)의 출구측에는 출구를 개폐하는 철문(34)이 구성되고, 구성된 철문(34)의 내측면에는 철문(34)이 완전히 닫혔을 때 밴딩머신(3)의 내측면과 결속되어 있지 않은 측의 주롤러(31)의 중심축과 결속되기 위한 결속부재(341)가 구성되어 있는 것이 특징인 주파수열처리기를 이용한 폐열회수장치용 드럼 제작방법.The exit side of the bending machine (3) is composed of an iron door 34 for opening and closing the exit, the inner side of the configured iron door 34 is bound with the inner side of the bending machine (3) when the iron door 34 is completely closed A method for producing a drum for waste heat recovery apparatus using a frequency heat processor, characterized in that a binding member (341) for engaging with the central axis of the main roller (31) not on the side is formed.
  11. 제 1항에 있어서,The method of claim 1,
    상기 2차 이송수단(4)은 롤링된 철판(6)의 너비보다는 긴 길이를 가지는 원통형의 롤러로 구성되되, 드럼형태로 롤링된 철판(6)이 측면으로 굴러는 것을 방지하기 위하여 상기 롤러형태의 양단부로부터 중간지점으로 갈수록 지름이 점차 작아지는 형태로 구성된 것이 특징인 주파수열처리기를 이용한 폐열회수장치용 드럼 제작방법.The secondary conveying means 4 is composed of a cylindrical roller having a length longer than the width of the rolled iron plate 6, the roller form to prevent the rolled iron plate 6 in the form of a drum to roll to the side Method for producing a drum for waste heat recovery apparatus using a frequency heat processor, characterized in that the diameter gradually decreases toward the middle point from both ends of the.
PCT/KR2009/003567 2009-04-20 2009-06-30 Method for manufacturing drum for waste heat recovery apparatus using frequency heat treatment machine WO2010123170A1 (en)

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KR1020090034348A KR100941366B1 (en) 2009-04-20 2009-04-20 Method for manufacturing drum for heat recovery steam generator using frequency-heat-treatment
KR10-2009-0034348 2009-04-20

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CN113732127A (en) * 2021-09-03 2021-12-03 河北布洛林机电设备有限公司 Strip steel splicing manufacturing storage tank rolling device
CN116274523A (en) * 2023-02-16 2023-06-23 江苏甬金金属科技有限公司 A rolling device with the function of preventing metal rebound

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Publication number Priority date Publication date Assignee Title
CN113732127A (en) * 2021-09-03 2021-12-03 河北布洛林机电设备有限公司 Strip steel splicing manufacturing storage tank rolling device
CN116274523A (en) * 2023-02-16 2023-06-23 江苏甬金金属科技有限公司 A rolling device with the function of preventing metal rebound
CN116274523B (en) * 2023-02-16 2023-12-19 江苏甬金金属科技有限公司 Rolling device with metal rebound prevention function

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