KR101528254B1 - Melting furnace capable of lifting body of furnace - Google Patents

Melting furnace capable of lifting body of furnace Download PDF

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Publication number
KR101528254B1
KR101528254B1 KR1020140115957A KR20140115957A KR101528254B1 KR 101528254 B1 KR101528254 B1 KR 101528254B1 KR 1020140115957 A KR1020140115957 A KR 1020140115957A KR 20140115957 A KR20140115957 A KR 20140115957A KR 101528254 B1 KR101528254 B1 KR 101528254B1
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South Korea
Prior art keywords
furnace
melting furnace
main body
melting
molten metal
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KR1020140115957A
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Korean (ko)
Inventor
이규업
Original Assignee
주식회사 피케이지
이규업
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Priority to KR1020140115957A priority Critical patent/KR101528254B1/en
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Publication of KR101528254B1 publication Critical patent/KR101528254B1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces
    • F27B3/10—Details, accessories, or equipment peculiar to hearth-type furnaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D1/00—Casings; Linings; Walls; Roofs

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)

Abstract

The present invention provides a stationary melting furnace capable of lifting a body of a furnace, and the stationary melting furnace comprising: a main body of the melting furnace to melt metal; a furnace supporting part combined with a lower part of the main body of the melting furnace; and a lifting device to vertically move the furnace supporting part, wherein the lifting device places the main body of the melting furnace at a predetermined height when molten metal, which is discharged through a tapping hole on the lower part of the main body of the melting furnace, is moved to a holding furnace via a runner. According to the present invention, molten metal can move naturally from a high position to a low position in accordance to a difference (gradient) between the height at a melting furnace side of the runner and the height at a holding furnace side of the rubber as the tapping hole of the melting furnace is placed at a height capable of connecting to one side of the runner using the lifting device when the molten metal, which is discharged through the tapping hole placed on the lower part of the stationary melting furnace, is moved to the holding furnace via the runner.

Description

[0001] MELTING FURNACE CAPABLE OF LIFTING BODY OF FURNACE [0002]

The present invention relates to a static type melting furnace, and more particularly, to a static type melting furnace capable of melting a molten metal in a melting furnace into a furnace for casting after adjusting an alloy component.

The aluminum melting furnace is a facility for dissolving an ingot or scrap formed by molding aluminum (Al) into a predetermined size at a high temperature of about 850 to 1100 ° C. Normally, the molten aluminum melted in the melting furnace is kept in a warming furnace, and aluminum products are produced by die casting or casting by pouring molten aluminum into a mold or the like when necessary. In recent years, aluminum alloys using aluminum have been widely used as various structural materials and machine parts because they are superior to metals having different composition, workability, and noble strength. Recently, the use of aluminum alloys has been gradually increasing. But the use thereof is increasing because it can produce lightweight structural materials and parts.

An aluminum continuous melting furnace disclosed in Korean Patent Publication No. 10-1338118 is related to a melting furnace capable of melting molten metal. In the prior art, a pedestal is installed at a lower portion of a main body composed of a melting furnace and a hot- One side of the main body is fastened to one side of the pedestal with a hinge and the other side of the main body is fastened to the other side of the pedestal with a lift cylinder so that the main body rotates about the hinge by driving of the lift cylinder, Discloses a tilting type melting furnace which is constituted so as to spout out the molten metal by tilting the furnace body around the hinge.

The melting furnace can be divided into a stationary melting furnace and a tandem type melting furnace according to a method in which melted molten metal is mixed with a holding furnace after casting the alloy component. Since the stationary melting furnace is installed on the foundation floor, there is no need to rotate the main body of the furnace, so that the equipment cost is lower than that of the tandem type melting furnace. The Kyeongdong type melting furnace is convenient and stable as it is located at a point higher than the melt level by rotating the melting furnace body when the molten metal is spouted, but the inside height of the factory building should be high for tilt angle maintenance.

On the other hand, in the case of a factory equipped with a static type melting furnace, in order to secure the stability of the slag type melting furnace, if a tilting type melting furnace is to be installed by tilting the main body of the melting furnace, It is difficult to secure a space for rotation. In addition, when a forklift is used to insert raw materials into a stationary melting furnace or to treat the dross of the molten metal in the melting furnace, the tongue of the stationary melting furnace door must be high and the forklift must move along the ramps formed between the bottom surface and the melting furnace door. It is hard to put it in, or it is difficult to scrape the dross in the upper part of the molten metal and put it in the dross port.

Therefore, it is necessary to develop a new stationary melting furnace that can be installed easily, even if the raw material charging, dross treatment, and melting of the molten metal are convenient and the height of the factory building is low (that is, I will do it.

[Patent Document 1] Korean Patent Registration No. 10-1338118 (published on Dec. 20, 2013)

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a method and apparatus for raising and lowering a roaster at the time of tapping without changing the structure of a factory building, So that the molten metal can be safely melted.

It is still another object of the present invention to provide a stationary melting furnace capable of solving the inconvenience of work when the raw material is introduced through the door portion of the stationary melting furnace or when the threshold of the dross processing in the upper portion of the molten furnace is high.

In order to solve the above problems, a stationary melting furnace capable of lifting a furnace body, which is an embodiment of the present invention, comprises a molten metal melted in a melting furnace main body through a tapping hole formed in a lower side of the furnace main body, And a door portion which is opened when the raw material is charged or removed, characterized in that: a melting furnace main body for melting the metal charged in the furnace by a combustion burner; a main body connected to the lower portion of the furnace main body to be connected to the hydraulic cylinder Wherein the main frame and the melting furnace main body are vertically connected to the main frame in order to maintain the horizontal position of the main body of the melting furnace when the main body is lifted and lowered by the lifting means, And includes a guide roller or sliding bearing which is connected to the underground space side when it is lifted or lowered And an elevating means connected to the support portion and the rail support portion to move the melting furnace body vertically and vertically, wherein the elevating means is configured such that when the molten metal is discharged into the outflow position, And the melting furnace main body is positioned at a predetermined height so that the forklift can operate the forklift on the floor surface and the horizontal line when the raw material is loaded or removed through the door portion.

According to an aspect of the embodiment of the present invention, the elevating means includes a hydraulic cylinder connected to the main frame of the rail receiving portion, and a hydraulic device controlling the reciprocating motion of the hydraulic cylinder.

delete

According to an embodiment of the present invention, the dust collecting hood, the exhaust duct, and the air supply duct, which are connected to the melting furnace body when the melting furnace body is moved up and down by the lifting means, .

delete

According to the present invention as described above, the elevating means is provided at the lower portion of the stationary melting furnace, and the stationary melting furnace is moved up and down by the elevating means according to the height required for the raw material introduction and the dross removal, So that the operation of the forklift can be smoothly performed and the efficiency of the work can be secured.

In addition, when the molten metal discharged from the tapping hole located at the bottom of the static melting furnace is transferred to the holding furnace through the casting duct, the elevating means is used to place the tapping hole of the melting furnace at a height that can be connected to one side of the casting furnace, The molten metal can naturally flow from a high place to a low place according to the difference (gradient) between the height and the height of the side of the holding furnace. Therefore, even if an abnormality occurs in the molten metal stopper at the molten metal outlet at the melting pot at the time of brewing, the molten metal flowing out of the tapping hole continuously flows into the holding furnace in the molten metal bath to prevent the molten metal from falling on the floor.

Also, the height of the plant floor is required to be about 800 to 1500 mm between the stationary melting furnace section and the warming furnace [furnace furnace] section. However, according to the present invention, the factory floor of the melting furnace section is not raised.

In addition, even if the space (height) inside the plant where the existing fixed-type melting furnace is installed is not secured and replacement with the submerged melting furnace is not possible, the elevating means is provided on the bottom surface of the stationary melting furnace It is possible to provide a stationary melting furnace that secures stability at the time of hot rolling.

1 is a cross-sectional view of a stationary melting furnace having lifting means as viewed from a door portion according to an embodiment of the present invention. .
FIG. 2 is a cross-sectional view of a stationary melting furnace having lifting means viewed from the side of a door to explain a raw material charging process according to an embodiment of the present invention.
3 is a cross-sectional view of a stationary melting furnace having lifting means viewed from the side of a door portion to explain a dross removing process according to an embodiment of the present invention.
FIG. 4 is a perspective view of a stationary melting furnace having elevating means viewed from the side of a door to explain a dangning process according to an embodiment of the present invention.
FIG. 5 is a cross-sectional view for explaining a blanket having a gradient in which a molten metal is molten according to an embodiment of the present invention.

The following detailed description is merely illustrative, and is merely an example of the present invention. Further, the principles and concepts of the present invention are provided for the purpose of being most useful and readily explaining.

Accordingly, it is not intended to provide a more detailed structure than is necessary for a basic understanding of the present invention, but it should be understood by those skilled in the art that various forms that can be practiced in the present invention are illustrated in the drawings.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a cross-sectional view of a stationary melting furnace having lifting means as viewed from a door portion according to an embodiment of the present invention.

1, the stationary melting furnace 1000 is constructed by melting a metal (for example, aluminum ingot or scrap) charged in the furnace body 100 through a combustion burner, The melting furnace main body 100 can be vertically moved up or down during the dumping process in which the furnace is routed through the charging process, the dross removal process, and the bath, and can be positioned at a predetermined height required in each process.

The melting furnace main body 100 may be connected to the elevating means 500 through a furnace receiving portion 520 coupled to the lower portion. The elevating means 500 includes a hydraulic cylinder 512 connected to a portion of the main frame 524 of the cargo receiving portion 520, a hydraulic device 511 controlling the reciprocating motion of the hydraulic cylinder, and a hydraulic cylinder 512 And a cylinder support portion 513 made of a concrete structure so as to be fixed to a part of the underground space formed in the lower portion of the main body 100 of the melting furnace. The hydraulic device 511 is controlled to inject the predetermined pressure into the hydraulic cylinder so as to match the respective steps of the furnace furnace through the raw material charging process, the dross removing process, and the bath to control the furnace body to be positioned at a predetermined height . The elevating means 500 may be not only a cylinder device by pressure but also various known lift devices of a chain driving type.

The main body frame 524 coupled to the hydraulic cylinder 512 and the main body of the melting furnace 100 are connected to the lower portion of the furnace main body 100 by the lifting means 500 A vertical bar 521 vertically connected to the main frame 524 in order to maintain the horizontal position of the melting furnace main body 100 at the time of ascending and descending, a horizontal bar 522 connecting the vertical bars 521, And a guide roller 523 or a sliding bearing connected to both ends of the guide 522 to contact the side surface 30 of the underground space 20 when the vehicle ascends and descends. The vertical bar 521 and the horizontal bar 522 also have to be rigid enough to support the load of the main body 100 of the melting furnace 100, It is of course necessary to have a predetermined rigidity.

The rod receiving portion 520 and the cylinder supporting portion 513 of the present invention are installed in an underground space 20 formed at a vertically lower portion from the melting furnace body 100. Conventionally, the stationary melting furnace is difficult to work as the forklift moves along a ramp between the floor and the door when the raw material is loaded and the dross is removed through a door at a preset height. However, the stationary melting furnace 1000 according to the present invention includes the submerged space 20 and the rod supporting part 520 and the cylinder supporting part 513, ). ≪ / RTI > Therefore, when the raw material is charged and the dross is removed, the height of the door portion 110 of the melting furnace main body 100 can be set according to each process, so that the forklift can work on the horizontal surface with the floor 10 having no conventional ramp The efficiency of the work can be improved.

Meanwhile, the air supply duct 151 of the dust collecting hood 130, the exhaust duct 140 (see FIG. 3) and the combustion air supply unit 150 can be moved in accordance with the movement of the melting furnace body 100 by the elevating means And a movement guide 131 (141 in Fig. 3). In the conventional stationary melting furnace, the dust collecting hood, the exhaust duct, the air supply duct, and the like are always fixed without moving. However, the stationary melting furnace 1000 of the present invention has a predetermined height The duct length of the dust collecting hood 130, the exhaust duct 140 (see FIG. 3) and the air supply duct 151 of the combustion air supply unit 150 should be increased or decreased in the vertical direction. 3) and the air supply duct 151 of the combustion air supply unit 150 are formed so that the movement guide 131 (not shown in FIG. 3, 141 and 151) And may be in the form of an insertion tube in which one duct is inserted into one duct or a shape of a corrugated tube which is deformable in accordance with the length.

FIG. 2 is a cross-sectional view of a stationary melting furnace having lifting means viewed from the side of a door to explain a raw material charging process according to an embodiment of the present invention. FIG. 3 is a cross-sectional view illustrating a dross removing process according to an embodiment of the present invention. Sectional view of a stationary melting furnace having lifting means viewed from the side of the door portion for the sake of explanation.

2, the stationary melting furnace of the present invention includes a door 110 on the side of the furnace main body 100, and is provided with an elevating means (not shown) for increasing the efficiency of the work by the forklift 40 And can be positioned at a predetermined height h1.

That is, when the forklift 40 moves horizontally when the raw material is loaded into the door 110, the forklift truck is required to operate the forklift truck, thereby improving the efficiency of the work. At the same time, the opening range of the door is minimized, So that it is possible to prevent unnecessary energy emission.

3, the dross in the main body of the melting furnace is transferred to the dross port 50 through the door part 110 by using a forklift 40 equipped with a hook, The melting furnace body can be positioned at a predetermined height (h2) by the elevating means. Therefore, even when the dross removing process is performed through the forklift 40, the forklift can be operated on the bottom surface and the horizontal line, thereby minimizing the work efficiency and unnecessary energy emission.

FIG. 4 is a view showing a static type melting furnace having elevating means viewed from the side of a door to explain a dipping process according to an embodiment of the present invention. FIG. 5 is a cross- And Fig.

4, when the molten metal 60 in the melting furnace main body is molten to the furnace furnace 600 through the annealing furnace 621 by the elevating means, the furnace main body is maintained at a predetermined gradient Height difference h3) of the height h3.

5, when the furnace receiving portion 520 is raised by h3 by the elevating means, the melting furnace side furnace bath 121a below the tapping tunnel 120 rises and the furnace furnace side furnace 121 is maintained And is connected to the side flow path 621. In this case, the bathtubs 121 and 621 are held so as to have inclination of h5-h6 according to the height h5 of the melting furnace side bathtub 121 and the height of the side bathtub 621 of the holding furnace , And when the molten metal stopper of the outflow tapping hole 120 is continuously opened, the molten metal can naturally flow into the retaining furnace side along the hot metal having the gradient. Herein, the dust collecting hood and the exhaust duct are moved by h3 according to the movement h3 of the main body of the melting furnace by the lifting means.

That is, the stationary melting furnace of the present invention, which is located at a predetermined height when molten by the elevating means, has a disadvantage of a tilting type melting furnace in which the installation cost is high as the molten iron is rotated and the factory building is required to be high for tilting It is possible to install the equipment for mass production because the installation cost is low and the factory building is low or the width is narrow because there is no need to tilt the melting furnace body because the molten metal can be molten by the furnace using a gradient compared to the Kyungdong type melting furnace. Even if the factory does not have space, it can be applied without changing the design.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, I will understand.

Therefore, the scope of the present invention should not be limited to the above-described embodiments, but should be determined by equivalents to the appended claims, as well as the appended claims.

10: Floor surface 20: Underground space
30: underground side 40: forklift
50: Drossport 60: Molten metal
100: melting furnace body 110: door part
120: Hot water tap 121: Hot water hot water side
130: dust collecting hood 131: moving guide
140: exhaust duct 141: moving guide
150: combustion air supply unit 151: moving guide
500: elevating means 511: hydraulic device
512: Hydraulic cylinder 513: Cylinder support
521: vertical bar 522: horizontal bar
523: guide roller 524: main frame
600: Yuseongro 621: Yongro Road
1000: stationary melting furnace

Claims (5)

A stationary melting furnace comprising a molten metal melted in a melting furnace main body through a tapping hole formed in a lower side of a side surface of a melting furnace main body to a holding furnace and opened when a raw material is charged or dross removed,
A combustion furnace, a melting furnace main body for melting the metal charged in the furnace,
A main frame coupled to a lower portion of the main body of the melting furnace and connected to a hydraulic cylinder to support a load; a vertical bar vertically connected to the main frame to maintain the horizontal position of the main body during lifting and lowering by the elevating means; A horizontal bar connecting the bars and a guide roller or sliding bearing connected to both ends of the horizontal bar so as to contact the side surface of the underground space at the time of ascending and descending,
And elevating means connected to the furnace receiving portion to move the furnace body in the vertical direction,
The elevating means is configured such that the molten metal discharged to the tapping tongue is discharged to the holding furnace through a bath having an inclination when the molten metal is molten, and the forklift can operate the forklift when the raw material is inserted through the door portion or when the dross is removed. Wherein the melting furnace main body is positioned at a predetermined height so that the furnace body can be lifted.
The method according to claim 1,
The elevating means
A hydraulic cylinder connected to the main frame of the pedestal portion, and
And a hydraulic device for controlling the reciprocating movement of the hydraulic cylinder.
delete The method according to claim 1,
Wherein the dust collecting hood, the exhaust duct, and the air supply duct, which are connected to the melting furnace main body when the melting furnace body is vertically moved by the lifting means, are moved by the respective movement guides formed on the furnace main body.
delete
KR1020140115957A 2014-09-02 2014-09-02 Melting furnace capable of lifting body of furnace KR101528254B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109946884A (en) * 2019-03-11 2019-06-28 深圳市华星光电半导体显示技术有限公司 Frame glue hardening furnace

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06142887A (en) * 1991-05-24 1994-05-24 Ats Beteiligungs Gmbh Method and equipment for casting magnesium-made light metal article
KR101338118B1 (en) * 2013-09-03 2013-12-06 에스제이산업주식회사 Aluminum continuous melting furnace
KR20140042181A (en) * 2012-09-28 2014-04-07 주식회사 피.케이.지 Furnace for melting aluminum puck by precipitation

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06142887A (en) * 1991-05-24 1994-05-24 Ats Beteiligungs Gmbh Method and equipment for casting magnesium-made light metal article
KR20140042181A (en) * 2012-09-28 2014-04-07 주식회사 피.케이.지 Furnace for melting aluminum puck by precipitation
KR101338118B1 (en) * 2013-09-03 2013-12-06 에스제이산업주식회사 Aluminum continuous melting furnace

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109946884A (en) * 2019-03-11 2019-06-28 深圳市华星光电半导体显示技术有限公司 Frame glue hardening furnace

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