KR101636979B1 - Plasma torch assembly and equipment for melting the scrapped material having the same - Google Patents

Plasma torch assembly and equipment for melting the scrapped material having the same Download PDF

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Publication number
KR101636979B1
KR101636979B1 KR1020150179718A KR20150179718A KR101636979B1 KR 101636979 B1 KR101636979 B1 KR 101636979B1 KR 1020150179718 A KR1020150179718 A KR 1020150179718A KR 20150179718 A KR20150179718 A KR 20150179718A KR 101636979 B1 KR101636979 B1 KR 101636979B1
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KR
South Korea
Prior art keywords
axis direction
plasma torch
melting
waste
driving unit
Prior art date
Application number
KR1020150179718A
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Korean (ko)
Inventor
최석모
박규원
양경화
Original Assignee
뉴클리어솔루션 주식회사
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Priority to KR1020150179718A priority Critical patent/KR101636979B1/en
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Publication of KR101636979B1 publication Critical patent/KR101636979B1/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
    • F27B3/20—Arrangements of heating devices
    • 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
    • F27B3/002—Siemens-Martin type furnaces
    • F27B3/005—Port construction
    • 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
    • F27D11/00—Arrangement of elements for electric heating in or on furnaces
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
    • H05H1/00—Generating plasma; Handling plasma
    • H05H1/24—Generating plasma
    • H05H1/26—Plasma torches

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Gasification And Melting Of Waste (AREA)

Abstract

The plasma torch assembly and the waste melting apparatus having the plasma torch assembly according to the present invention include: a plasma torch for providing fusion heat for melting waste in a melting furnace; Axis direction and the Y-axis direction, the horizontal direction formed perpendicularly to the support surface of the melting furnace in the Z-axis direction, parallel to the support surface and at an angle of 90 degrees with respect to the Z-axis, A first driving unit for providing a driving force to reciprocate in the direction of the first driving unit; And a second driving unit for providing a driving force to reciprocate the plasma torch in either the X-axis direction or the Y-axis direction. Accordingly, the plasma torch can be moved in the vertical direction with respect to the melting furnace, and the plasma torch can be moved in either the forward or backward direction or the left or right direction, so that the melting temperature of the waste can be rapidly increased and the melting time can be reduced.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a plasma torch assembly and a waste melting apparatus having the same,

The present invention relates to a plasma torch assembly and a waste melting apparatus having the same, and more particularly, to a plasma torch assembly for melting waste using plasma and induction heating, and a waste melting apparatus having the same.

Recently used waste melting plants are facilities for melting waste to recycle waste, for example flammable or non-combustible wastes. Such waste melting equipment uses a plasma torch using plasma as melting heat and an induction heating method using high frequency induction.

Here, the plasma torch system uses a plasma torch moving up and down with respect to the inside and outside of the melting furnace to provide melting heat inside the melting furnace. Or the waste melting facility uses a method in which three air cylinders are arranged horizontally on the torch with the plasma torch as a reference axis and sequentially rotated along the circumferential direction to rotate.

However, there is a problem in that the waste melting apparatus for moving the conventional plasma torch in the vertical direction takes a long time to raise the temperature until the molten state of the waste becomes the discharge condition. In addition, the plasma torch There is a problem that the heat of fusion provided from the heat exchanger is not transferred.

In addition, the conventional waste melting equipment using three air cylinders has a complicated structure, which is difficult to apply in the field of the discharge method in which the melting furnace is tilted.

In addition, when the upper part is solidified due to the lowering of the surface temperature of the molten metal during the melting of the waste, there is a risk of explosion due to the pressure of the combustion gas in the molten metal and erosion of the inner wall of the melting furnace refractory material.

Japanese Unexamined Patent Application Publication No. 07-063895; Method of melt processing of radioactive solid waste

It is an object of the present invention to provide a plasma torch assembly and a waste melting apparatus having the plasma torch assembly improved in the way of providing the heat of fusion provided from the plasma torch so as to transfer the heat of the plasma torch to the entire area inside the melting furnace.

It is another object of the present invention to provide a plasma torch assembly having improved structure for preventing the surface temperature of the upper portion of the melting furnace and the cooling water from flowing out, and a waste melting apparatus having the same.

According to an aspect of the present invention, there is provided a plasma torch, comprising: a plasma torch for providing melting heat for melting waste in a melting furnace in accordance with the present invention; A first driving unit for providing a driving force to reciprocate the plasma torch in the Z-axis direction when a horizontal direction formed with an angle of 90 degrees with respect to the axis is defined as an X-axis direction and a Y-axis direction, And a second driving unit for providing a driving force to reciprocate the plasma torch in either the Y-axis direction or the Y-axis direction.

Here, the first drive unit may provide a driving force to the plasma torch to linearly reciprocate the plasma torch along an acute virtual axis with respect to the Z-axis.

The first driving unit includes a first driving unit, a first moving screw unit connected to the first driving unit and rotated by a driving force provided from the first driving unit, and a second moving screw unit connected to the plasma torch and the first moving screw unit And a first linear guide portion for guiding the linear reciprocating movement in the Z-axis direction in accordance with the rotational movement of the first moving screw portion.

The second driving unit includes a second driving unit, a second moving screw unit connected to the second driving unit and rotated by a driving force provided from the second driving unit, and a second moving screw unit that rotates the plasma torch and the second moving screw unit And a second linear guide portion for guiding reciprocating movement in either the X-axis direction or the Y-axis direction in accordance with the rotational motion of the second moving screw portion.

The plasma torch assembly may further include a guide cooling unit disposed in the second linear guide unit and cooling the second linear guide unit heated by the heat supplied from the melting furnace.

According to an aspect of the present invention, there is provided a method of manufacturing a waste incinerator, comprising: a melting furnace accommodating waste of any one of combustible and nonflammable according to the present invention and having a melting section for forming a melting space of waste, An induction heating unit disposed adjacent to the outside of the melting furnace to induction-heat the inside of the melting furnace, and a plasma torch assembly disposed in the cover unit and configured to provide heat for melting the waste contained in the melting furnace And the waste melting apparatus is characterized in that the waste melting apparatus is provided.

Here, the cover portion may include a cover body that covers an opening region of the fused portion, and a cover body that is penetratively formed in the cover body and in which the plasma torch assembly is disposed and which is disposed in one of the X axis direction and the Y axis direction And a cover waste injecting portion formed through the cover body to form a charging path for the waste to be charged into the molten portion.

Preferably, the melted portion has a curved shape such that the length in the X-axis direction is relatively longer than the length in the Y-axis direction when the plasma torch assembly reciprocates along the X-axis direction, and the axis of the X- Or the like.

On the other hand, when the plasma torch assembly reciprocates along the Y-axis direction, the melting portion has a curved shape such that the Y-axis direction length is relatively longer than the X-axis direction length, and the Y- Shaped.

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The details of other embodiments are included in the detailed description and drawings.

The effects of the plasma torch assembly and the waste melting apparatus having the plasma torch assembly according to the present invention are as follows.

First, since the plasma torch can be moved in the up-and-down direction with respect to the melting furnace, and the plasma torch can be moved in either the forward or backward direction or the left-right direction, the melting temperature of the waste can be rapidly increased and the melting time can be reduced.

Second, since the plasma torch can be reciprocated in the front-back direction or the left-right direction together with the vertical direction with respect to the supporting surface of the melting furnace, and the induction heating unit can be used to induction-heat the melting furnace, the melting rate of the waste can be rapidly increased, The temperature can be kept constant.

1 is a side view of a plasma assembly according to embodiments of the present invention;
FIG. 2 is a side view of a waste melting apparatus according to an embodiment of the present invention,
FIG. 3 is a plan view of the waste melting apparatus according to the first embodiment of the present invention shown in FIG. 2;
FIG. 4 is a plan view of a waste melting apparatus according to a second embodiment of the present invention shown in FIG. 2;
FIG. 5 is a layout plan view of a cooling pipe of a waste melting apparatus according to embodiments of the present invention. FIG.

Hereinafter, a plasma torch according to an embodiment of the present invention and a waste melting apparatus having the plasma torch will be described in detail with reference to the accompanying drawings.

Prior to the description, it is to be noted that the waste melting apparatuses according to the first and second embodiments of the present invention are denoted by the same reference numerals for the same component names.

1 is a side view of a plasma assembly according to embodiments of the present invention.

1, a plasma torch assembly 1 according to an embodiment of the present invention includes a plasma torch 10, a first drive unit 30, and a second drive unit 50. As shown in FIG. In addition, the plasma torch assembly 1 according to an embodiment of the present invention further includes a guide cooling unit 70.

Plasma torch 10 provides melting heat to apply waste within melting furnace 110 (see Figures 2 to 5). The plasma torch 10 provides the plasma into the melting furnace 110 as melt heat. The plasma torch 10 is composed of a known electrode, nozzle and cap, and argon, argon + hydrogen, argon + nitrogen, etc. may be used as the working gas.

The first drive unit 30 is disposed in the X-axis direction and the Y-axis direction, which are parallel to the support surface in the transverse direction with respect to the support surface of the melting furnace 110 and formed at an angle of 90 degrees with respect to the Z- Axis direction, a driving force is provided to reciprocate the plasma torch 10 in the Z-axis direction. Specifically, the first drive unit 30 provides a driving force to the plasma torch 10 to linearly reciprocate the plasma torch 10 along an acute virtual axis with respect to the Z axis. The first driving unit 30 includes a first driving unit 32, a first moving screw unit 34, and a first linear guide unit 36 as an embodiment of the present invention.

The first driving part 32 uses a motor that provides a rotational driving force. The first moving screw portion 34 is connected to the first driving portion 32 and is rotated by the driving force provided from the first driving portion 32. The first linear guide portion 36 interconnects the plasma torch 10 and the first moving screw portion 34 and moves in the Z axis direction of the plasma torch 10 in accordance with the rotational movement of the first moving screw portion 34. [ Thereby guiding the linear reciprocating movement. The first linear guide portion 36 is connected to the first movable screw portion 34 in a ball-screw manner and moves up and down in the Z-axis direction in accordance with clockwise and counterclockwise rotational movement of the first movable screw portion 34 do.

The second drive unit 50 provides driving force to reciprocate the plasma torch 10 in either the X-axis direction or the Y-axis direction. 1, the second driving unit 50 shown in FIG. 1 linearly moves the plasma torch 10 in the X-axis direction, but moves the plasma torch 10 in the Y-axis direction as shown in FIG. 4 (Not shown).

The second driving unit 50 includes a second driving part 52, a second moving screw part 54 and a second linear guide part 56. The second driving unit 52 uses a motor that provides a rotational driving force. The second moving screw portion 54 is connected to the second driving portion 52 and is rotated by the driving force provided from the second driving portion 52. The second linear guide portion 56 interconnects the plasma torch 10 and the second movable screw portion 54. The second linear guide portion 56 is connected to either the X axis direction or the Y axis direction And guides the linear reciprocating movement of the plasma torch 10 in one direction. The second linear guide portion 56 is connected to the second moving screw portion 54 in a ball screw manner so that when the second driving unit 50 is configured to move the plasma torch 10 in the X axis direction And is moved back and forth in the X-axis direction in accordance with the clockwise and counterclockwise rotational movements of the second moving screw portion 54. On the other hand, when the second driving unit 50 is configured to move the plasma torch 10 in the Y-axis direction, the second linear guide unit 56 is rotated clockwise and counterclockwise And is moved leftward and rightward in the Y-axis direction according to the rotational motion.

Next, the guide cooling section 70 is disposed in the second linear guide section 56 to cool the second linear guide section 56 heated by the heat supplied from the melting furnace 110. The guide cooling unit 70 cools the second linear guide unit 56 so that heat generated during melting of the waste is not transferred to the second linear guide unit 56.

Accordingly, the plasma torch can be moved in the vertical direction with respect to the melting furnace, and the plasma torch can be moved in either the forward or backward direction or the left or right direction, so that the melting temperature of the waste can be rapidly increased and the melting time can be reduced.

FIG. 2 is a side view of a waste melting apparatus according to an embodiment of the present invention. FIG. 3 is a plan view of a waste melting apparatus according to the first embodiment of the present invention shown in FIG. FIG. 5 is a plan view showing a layout of cooling pipes of a waste melting apparatus according to an embodiment of the present invention. FIG. 5 is a plan view of a waste melting apparatus according to a second embodiment of the present invention.

The waste melting apparatus 100 according to the first and second embodiments of the present invention includes a plasma torch assembly 1, a melting furnace 110, and an induction heating unit 130, as shown in FIGS. 2 to 5 do. In addition, the waste melting apparatus 100 according to the first and second embodiments of the present invention further includes a cooling pipe 150. As a preferred embodiment of the present invention, the waste melting facility 100 melts flammable or non-combustible waste. However, other wastes can also be melted. Here, since the plasma torch assembly has been described with reference to FIG. 1, it will not be described below.

The melting furnace 110 includes a melting section 112 that accommodates flammable or nonflammable wastes and forms a melting space of waste, and a cover section 114 that covers an opening area of the melting section 112. 3, the length of the melting furnace 110 in the X-axis direction is longer than that in the Y-axis direction when the plasma torch assembly 1 reciprocates along the X-axis direction. 4, the length of the melting furnace 110 in the Y-axis direction is longer than the length in the X-axis direction when the plasma torch assembly 1 reciprocates along the Y-axis direction. Here, when the plasma torch assembly 1 is reciprocated along the X-axis direction, the melted portion 112 is provided in a cylindrical shape having a curvature shape such that the axis of the X-axis is normal. When the plasma torch assembly 1 is reciprocally moved along the Y-axis direction, the melted portion 112 is provided in a cylindrical shape having a curved shape such that the axis of the Y-axis is normal.

As described above, the melted portion 112 is provided in the shape of a closed loop having a curved shape according to the configuration when the plasma torch assembly 1 reciprocates in the X-axis direction and the configuration when the plasma torch assembly 1 moves in the Y-axis direction The heat of fusion due to the movement of the plasma torch assembly 1 is effectively provided to the inside of the melting portion 112. The molten portion 112 includes a molten body 112a composed of a refractory and a discharge portion 112b discharging the molten liquid waste from the molten body 112a to the outside.

The cover portion 114 covers the upper opening region of the molten body 112a. The cover portion 114 includes a cover body 114a, a guide portion 114b for a plasma torch, and a cover waste input portion 114c. The cover body 114a covers the opening area and the plasma torch guide part 114b penetrates the cover body 114a to guide the movement of the plasma torch 10. As shown in FIG. 3, the plasma torch guide portion 114b is formed in the X-axis direction when the plasma torch 10 is reciprocated in the X-axis direction. The plasma torch guide portion 114b includes a plasma torch 10, Axis direction is reciprocated in the Y-axis direction. The cover waste input portion 114c is formed in the cover body 114a so as to allow the waste to be fused into the molten portion 112 to be introduced into the cover body 114a.

The induction heating unit 130 is disposed adjacent to the outside of the melting furnace 110 to induction-heat the inside of the melting furnace 110. The induction heating unit 130 induction-heating the melting furnace 110 by a high-frequency induction heating method to raise the melting temperature of the waste in the interior. That is, the induction heating unit 130, together with the plasma torch assembly 1, provides fusion heat inside the melting furnace 110. Here, the induction heating unit 130 may induce heating of the melting furnace 110 to prevent a swelling phenomenon due to the cooling of the upper surface of the molten waste and an explosion of the melting furnace due to the expansion of the combustion gas.

The cooling pipe 150 is disposed inside the wall of the fused portion 112 to cool the fused portion 112. The cooling pipe 150 is disposed inside the wall forming the standing wall and the bottom surface of the fused portion 112. The cooling water is discharged from the supply and cooling piping 150 to the cooling piping 150 to cool the melted portion 112. This cooling piping 150 protects the melting furnace 110 and keeps the internal temperature uniform to raise the temperature of the molten waste.

delete

Therefore, the plasma torch can be reciprocated in the front-rear direction or the left-right direction together with the vertical direction with respect to the support surface of the melting furnace, and the melting furnace can be inductively heated by using the induction heating unit. The temperature can be kept constant.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, . Therefore, it should be understood that the above-described embodiments are illustrative in all aspects and not restrictive. The scope of the present invention is defined by the appended claims rather than the detailed description and all changes or modifications derived from the meaning and scope of the claims and their equivalents are to be construed as being included within the scope of the present invention do.

1: Plasma torch assembly 10: Plasma torch
30: first drive unit 32: first drive unit
34: first moving screw section 36: first linear guide section
50: second driving unit 52: second driving part
54: second moving screw portion 56: second linear guide portion
70: guide cooling unit 100: waste melting equipment
110: Melting furnace 112: Melting section
114: cover part 130: induction heating part
150: Cooling piping

Claims (10)

A plasma torch for providing fusing heat to melt the waste inside the melting furnace;
And a horizontal direction formed at an angle of 90 degrees with respect to the Z axis is X axis direction and Y axis direction, respectively, in a Z axis direction perpendicular to the supporting surface of the melting furnace, A first driving unit for providing a driving force to reciprocate the torch in the Z-axis direction;
And a second driving unit for providing a driving force to reciprocate the plasma torch in either one of the X-axis direction and the Y-axis direction,
The first driving unit includes a first driving unit, a first moving screw unit connected to the first driving unit and rotated by a driving force provided from the first driving unit, and a second moving screw unit connected to the plasma torch and the first moving screw unit And a first linear guide portion for guiding a linear reciprocating movement in the Z-axis direction in accordance with the rotational movement of the first moving screw portion,
The second driving unit includes a second driving unit, a second moving screw unit connected to the second driving unit and rotated by a driving force provided from the second driving unit, and a second moving screw unit connected to the plasma torch and the second moving screw unit And a second linear guide portion for guiding reciprocating movement in either the X-axis direction or the Y-axis direction in accordance with the rotation motion of the second moving screw portion.
The method according to claim 1,
Wherein the first drive unit provides a driving force to the plasma torch to linearly reciprocate the plasma torch along an acute virtual axis with respect to the Z axis.
delete delete The method according to claim 1,
Wherein the plasma torch assembly further comprises a guide cooling portion disposed in the second linear guide portion and cooling the second linear guide portion heated by the heat provided from the melting furnace.
A melting furnace accommodating waste of any one of combustible and nonflammable and having a melting section forming a melting space of the waste and a cover section covering an opening area of the melting section;
An induction heating unit disposed adjacent to the outside of the melting furnace and induction heating the inside of the melting furnace;
The waste melting apparatus according to any one of claims 1, 2, and 5, which is disposed in the cover portion and provides heat of fusion to the waste contained in the melting furnace.
The method according to claim 6,
The cover portion
A cover body covering an opening area of the fused portion;
A plasma torch guide formed to penetrate through the cover body and to guide the movement of the plasma torch assembly in one of the X axis direction and the Y axis direction;
And a cover waste injecting portion formed through the cover body to form a charging passage for waste to be injected into the molten portion.
The method according to claim 6,
Wherein the melting portion has a cylindrical shape having a curvature shape such that the length in the X-axis direction is relatively longer than the length in the Y-axis direction when the plasma torch assembly reciprocates along the X-axis direction and the axis of the X- Wherein the waste heat exchanger is provided with a waste heat exchanger.
The method according to claim 6,
Wherein the melting portion has a cylindrical shape having a curvature shape such that the length in the Y-axis direction is relatively longer than the length in the X-axis direction when the plasma torch assembly reciprocates along the Y-axis direction, and the axis of the Y- Wherein the waste heat exchanger is provided with a waste heat exchanger.
delete
KR1020150179718A 2015-12-16 2015-12-16 Plasma torch assembly and equipment for melting the scrapped material having the same KR101636979B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021172621A1 (en) * 2020-02-26 2021-09-02 주식회사 오리온이엔씨 Mobile compression and melting composite volume reduction system and method for treating non-combustible waste of dismantled nuclear power plant

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06117778A (en) * 1992-09-30 1994-04-28 Sumitomo Metal Ind Ltd Method and apparatus for cooling furnace casing of molten steel-refining furnace
JPH0763895A (en) 1993-08-25 1995-03-10 Power Reactor & Nuclear Fuel Dev Corp Melting treatment for radioactive miscellaneous solid waste
JP2003302034A (en) * 2002-04-11 2003-10-24 Ebara Corp Melting furnace and incineration ash melting method
JP2005527456A (en) * 2002-04-08 2005-09-15 コミツサリア タ レネルジー アトミーク Melt-solidifying furnace and melt-solidifying method using two heating means
KR20110024851A (en) * 2009-09-03 2011-03-09 인하대학교 산학협력단 Height control apparatus for plasma torch

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06117778A (en) * 1992-09-30 1994-04-28 Sumitomo Metal Ind Ltd Method and apparatus for cooling furnace casing of molten steel-refining furnace
JPH0763895A (en) 1993-08-25 1995-03-10 Power Reactor & Nuclear Fuel Dev Corp Melting treatment for radioactive miscellaneous solid waste
JP2005527456A (en) * 2002-04-08 2005-09-15 コミツサリア タ レネルジー アトミーク Melt-solidifying furnace and melt-solidifying method using two heating means
JP2003302034A (en) * 2002-04-11 2003-10-24 Ebara Corp Melting furnace and incineration ash melting method
KR20110024851A (en) * 2009-09-03 2011-03-09 인하대학교 산학협력단 Height control apparatus for plasma torch

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021172621A1 (en) * 2020-02-26 2021-09-02 주식회사 오리온이엔씨 Mobile compression and melting composite volume reduction system and method for treating non-combustible waste of dismantled nuclear power plant

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