JP2004513327A - Metal melting furnace suitable for direct and continuous tapping of molten metal - Google Patents
Metal melting furnace suitable for direct and continuous tapping of molten metal Download PDFInfo
- Publication number
- JP2004513327A JP2004513327A JP2002541327A JP2002541327A JP2004513327A JP 2004513327 A JP2004513327 A JP 2004513327A JP 2002541327 A JP2002541327 A JP 2002541327A JP 2002541327 A JP2002541327 A JP 2002541327A JP 2004513327 A JP2004513327 A JP 2004513327A
- Authority
- JP
- Japan
- Prior art keywords
- cupola
- melting furnace
- pool
- waiting
- molten metal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000002184 metal Substances 0.000 title claims abstract description 31
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 31
- 238000002844 melting Methods 0.000 title claims abstract description 20
- 230000008018 melting Effects 0.000 title claims abstract description 20
- 238000010079 rubber tapping Methods 0.000 title claims description 13
- 150000002739 metals Chemical class 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 3
- 239000012212 insulator Substances 0.000 claims 1
- 239000000463 material Substances 0.000 description 4
- 238000005266 casting Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000012937 correction Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000009749 continuous casting Methods 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000012768 molten material Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
Classifications
-
- 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
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D3/14—Charging or discharging liquid or molten material
- F27D3/145—Runners therefor
-
- 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
- F27B1/00—Shaft or like vertical or substantially vertical furnaces
- F27B1/10—Details, accessories, or equipment peculiar to furnaces of these types
- F27B1/21—Arrangements of devices for discharging
-
- 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
- F27B3/19—Arrangements of devices for discharging
-
- 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
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D2003/0085—Movement of the container or support of the charge in the furnace or in the charging facilities
- F27D2003/0089—Rotation about a horizontal or slightly inclined axis
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
- Furnace Charging Or Discharging (AREA)
- Manufacture Of Alloys Or Alloy Compounds (AREA)
- Crucibles And Fluidized-Bed Furnaces (AREA)
- Muffle Furnaces And Rotary Kilns (AREA)
Abstract
特殊な型の接続チャネルが形成された金属類の二次溶解炉であって、キュポラ（１）と球形待機湯だまり（８）との間に回転ジョイント（７）を有する溶解炉。該回転ジョイントは回転可能であって、融解金属が、作業サイクルを中断させることなく、キュポラから待機湯だまりへ、更に待機湯だまりから鋳塊鋳型へと直接及び連続的に出湯されることができる。A secondary melting furnace for metals having a special type of connecting channel, comprising a rotating joint (7) between a cupola (1) and a spherical standby pool (8). The rotary joint is rotatable, so that the molten metal can be directly and continuously discharged from the cupola to the waiting pool and from the waiting pool to the ingot mold without interrupting the working cycle. .
Description
【０００１】
（技術分野）
本発明は、溶解炉系の主要な部分であるキュポラと待機湯だまりとの間に特別な型の接続を有し、特に前記待機湯だまりは回転できるように構成され、作業サイクルに中断の余地を与えない鋳造結合系として実現された融解金属類の二次溶解炉に関する。
【０００２】
（背景技術）
従来技術に従った系では、鋳造サイクルの３つの段階を区別して、３つの主な要素、即ち、溶解炉、出湯チャネル、及び待機湯だまりに結合させることができる。
【０００３】
最初の段階は、溶解炉又はキュポラにスクラップ類を装入して溶解することである。この段階では、材料を溶解するために必要な比熱を生成する大量の熱エネルギーを供給し、また更に、キュポラの中に存在する全ての装入スクラップが溶解を完了する間、金属の液相を維持するために必要な潜熱のエネルギー量を供給することが必要である。２番目の段階は、溶解炉を休止し、その後で不完全冷却を実施して、溶解された材料を、特別の出湯チャネルを介して待機湯だまりへ出湯させることである。出湯チャネルは、一般的に、融解金属を更に冷却する戸外への流路によって実現される。３番目又は最後の段階は、待機湯だまりの中で金属の補正及び添加によって材料群を変態させること、及び２番目の段階の必然的冷却によって散逸したエネルギーを補うため、必要な比熱及び潜熱を生じる熱エネルギーを付与することである。この手法の長い溶解及び出湯時間は、大量のガスを融解金属に吸収させるので、多くの場合、待機湯だまりの中で、液体窒素の注入によって、浴中の添加を予見する或るタイプの補正を加え、材料群を脱ガスして、欠陥の無いインゴット及び鋳塊を得る必要がある。
【０００４】
（発明の開示）
本発明の目的は、先行技術の不便を除去して、融解金属が、キュポラから回転可能な待機湯だまりへ、更に待機湯だまりから鋳塊鋳型へと、直接及び連続的に出湯されるようにする特別の接続を有する溶解炉を実現し、エネルギー・コスト、管理時間、及び手作業を減少させ、同時に、作業の良好な安全条件を実現することである。作業の良好な安全条件が実現されるのは、鋳造サイクルが事実上完全に密閉サイクルとして起こり、作業員は溶解材料と接触しないからである。
【０００５】
従って、連続した鋳造サイクルは中断を無用にする。従って、第１に溶解炉の休止と冷却は最小限度にされ、第２に熱エネルギーは燃料、時間、及び手作業の節減を確実にする。
【０００６】
図面を参照すると、本発明の実施形態において、金属シャツ（３）によって取り囲まれた耐火物（２）の壁を有する実質的に立方体形状のキュポラ（１）が示される。キュポラ（１）には、１つの側面にバーナ（４）が存在し、他の側面に装入扉（５）が存在し、その反対側面の中央下部に開口（６）が存在する。融解金属は開口（６）から流出して、出湯チャネル（７）を介して球形待機湯だまり（８）へ達する。湯だまり（８）は、支持要素（１０）によって支えられ、低い平面の穴（９）に置かれる。出湯チャネル（７）は、キュポラ（１）と待機湯だまり（８）との間で特殊な回転ジョイントとして実現され、円形断面を有し十分に熱絶縁された２つの中空円筒体（１１）及び（１２）から構成される。円筒体（１１）及び（１２）の各々の端（１３）及び（１４）は、それぞれキュポラ（１）及び待機湯だまり（８）へ固定され、各々の他の自由端（１５）及び（１６）は、同軸となるように一方が他方へ同軸に挿入されている。２つの円筒体（１１）及び（１２）の間には、外側と比較して内側に摩擦を生じることなく回転できるように、数センチメートルを超えない中間距離が存在する。
【０００７】
球形待機湯だまり（８）は、２つの半球から構成されるセットである。このセットは、１つの半球が他の半球の上に載せられており、金属シャツ（１９）によって取り囲まれた耐火物（１７）及び熱絶縁物（１８）の壁を有し、湯だまり（８）の子午線円周が、出湯チャネル（７）と事実上同じ高さとなるように、支持体（１０）によって支えられ、穴（９）の中に置かれている。子午線円周の近くに、バーナ（２０）及び融解金属の出口オリフィス（２１）が置かれている。
【０００８】
金属スクラップがキュポラの中で溶解したとき、融解金属は開口（６）から出て、出湯チャネル（７）を通り、球形待機湯だまり（８）に達する。融解金属が湯だまり（８）の中で更なる処理を受けて最終的に所望の結果へ達すると、湯だまり（８）は動力系によって心棒Ｉの周りを回転させられ、融解金属は出口オリフィス（２１）から出て鋳塊鋳型へ達する。
【０００９】
明瞭に分かるように、本発明は、その目的を完全に充足している。
【００１０】
実際に、等方性の熱力学的及び物理学的原理によって、待機湯だまりの特別に採用された幾何学的形状（球体）は、鋳造の技術サイクルの全手順を向上及び改善する。更に、溶解炉のキュポラと待機湯だまりとの間に実現された特定の接続によって（キュポラと湯だまりとは別個のものであるが、操業中は、回転ジョイント手段へ結合される）、これらの構成部分は同時的に働いて、燃料、時間、及び手作業を著しく節減した連続溶解系を実現する。従って、従来技術の標準の系と比較して、５０パーセントの経済効率が得られる。
【００１１】
実施形態の全ての詳細部分は、必要に応じて同じ技術特性を有する他の要素によって置き換えられることができ、寸法及び形状は、本質的に、ユーザの必要性に従って変更されることができる。
【図面の簡単な説明】
【図１】
図１は、溶解炉を横から見た略断面図である。
【図２】
図２は、溶解炉を上から見た略断面図である。
【図３】
図３は、回転する接続チャネルを示す略図である。[0001]
(Technical field)
The present invention has a special type of connection between the cupola, which is the main part of the melting furnace system, and the waiting basin, in particular the said waiting basin is configured to be rotatable, leaving room for interruption in the working cycle The present invention relates to a secondary melting furnace for molten metals realized as a cast-bonded system that does not give a crack.
[0002]
(Background technology)
In systems according to the prior art, the three stages of the casting cycle can be distinguished and connected to three main elements: the melting furnace, the tapping channel and the waiting pool.
[0003]
The first step is to load and melt the scraps in a melting furnace or cupola. At this stage, a large amount of thermal energy is supplied to generate the specific heat required to melt the material, and furthermore, the liquid phase of the metal is removed while all the charged scrap present in the cupola completes melting. It is necessary to supply the amount of latent heat energy required to maintain it. The second step is to shut down the melting furnace, and then perform incomplete cooling to allow the melted material to drain through a special tapping channel into a waiting pool. The tapping channel is generally realized by an outdoor channel that further cools the molten metal. The third or last stage is to transform the group of materials by correction and addition of metal in the waiting pool and to make up for the required specific heat and latent heat to compensate for the energy dissipated by the inevitable cooling of the second stage. It is to apply the generated thermal energy. The long dissolution and tapping times of this technique cause large amounts of gas to be absorbed by the molten metal, so some types of corrections often foresee addition in the bath, by injection of liquid nitrogen, in a waiting pool. And degassing the material group to obtain defect-free ingots and ingots.
[0004]
(Disclosure of the Invention)
An object of the present invention is to eliminate the inconvenience of the prior art so that molten metal is directly and continuously discharged from a cupola to a rotatable standby pool, and further from the standby pool to an ingot mold. To reduce the energy cost, management time and manual work, while at the same time achieving good safety conditions for the work. Good safety conditions for the operation are realized because the casting cycle takes place as a virtually completely closed cycle and the workers do not come into contact with the molten material.
[0005]
Thus, a continuous casting cycle makes interruptions unnecessary. Thus, firstly, downtime and cooling of the melting furnace is minimized, and secondly, thermal energy ensures fuel, time and manual savings.
[0006]
Referring to the drawings, in an embodiment of the present invention, there is shown a substantially cuboid shaped cupola (1) having a wall of a refractory (2) surrounded by a metal shirt (3). The cupola (1) has a burner (4) on one side, a charging door (5) on the other side, and an opening (6) at the lower center in the opposite side. The molten metal flows out of the opening (6) and reaches the spherical waiting pool (8) via the tapping channel (7). The basin (8) is supported by a support element (10) and is placed in a low plane hole (9). The tapping channel (7) is realized as a special rotary joint between the cupola (1) and the waiting pool (8), and has two hollow cylinders (11) having a circular cross section and being sufficiently thermally insulated and (12). The ends (13) and (14) of each of the cylinders (11) and (12) are fixed to the cupola (1) and the waiting pool (8), respectively, and the other free ends (15) and (16) respectively. ) Are coaxially inserted into the other so as to be coaxial. There is an intermediate distance between the two cylinders (11) and (12) that does not exceed a few centimeters so that they can rotate without friction inside as compared to outside.
[0007]
The spherical waiting pool (8) is a set composed of two hemispheres. This set has a wall of refractory (17) and thermal insulation (18) surrounded by a metal shirt (19), with one hemisphere resting on top of another hemisphere, and a pool (8). ) Are supported by the support (10) and are placed in the holes (9) such that the circumference of the meridian of ()) is substantially at the same height as the tapping channel (7). Close to the meridian circumference is a burner (20) and an exit orifice (21) for molten metal.
[0008]
When the metal scrap is melted in the cupola, the molten metal exits through the opening (6), passes through the tapping channel (7) and reaches the spherical waiting pool (8). When the molten metal has undergone further processing in the basin (8) and finally reaches the desired result, the basin (8) is rotated around the mandrel I by the power train and the molten metal is passed through the outlet orifice. It exits from (21) and reaches the ingot mold.
[0009]
As can be clearly seen, the present invention fully satisfies its purpose.
[0010]
Indeed, due to the isotropic thermodynamic and physical principles, the specially adopted geometry (sphere) of the waiting basin enhances and improves the overall procedure of the technical cycle of casting. Furthermore, by means of a specific connection realized between the cupola of the melting furnace and the stand-by basin (separate from the cupola and the basin but connected during operation to the rotary joint means), these The components work together to achieve a continuous melting system that significantly saves fuel, time, and manual work. Thus, an economic efficiency of 50 percent is obtained compared to the standard system of the prior art.
[0011]
All the details of the embodiments can be replaced by other elements having the same technical characteristics as required, and the dimensions and shapes can be varied essentially according to the needs of the user.
[Brief description of the drawings]
FIG.
FIG. 1 is a schematic sectional view of the melting furnace as viewed from the side.
FIG. 2
FIG. 2 is a schematic sectional view of the melting furnace as viewed from above.
FIG. 3
FIG. 3 is a schematic diagram showing a rotating connection channel.
Claims (6)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT000075A ITNA20000075A1 (en) | 2000-11-13 | 2000-11-13 | Melting furnace for metal alloys suitable for direct and continuous spillage of molten metal. |
| PCT/IT2001/000557 WO2002039044A2 (en) | 2000-11-13 | 2001-11-07 | Melting furnace for metal leagues fit to the direct and continuous poured of the melted metal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2004513327A true JP2004513327A (en) | 2004-04-30 |
| JP4129914B2 JP4129914B2 (en) | 2008-08-06 |
Family
ID=11451319
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2002541327A Expired - Fee Related JP4129914B2 (en) | 2000-11-13 | 2001-11-07 | Melting furnace for metals suitable for direct and continuous tapping of molten metal |
Country Status (11)
| Country | Link |
|---|---|
| EP (1) | EP1334324B1 (en) |
| JP (1) | JP4129914B2 (en) |
| CN (1) | CN100365366C (en) |
| AT (1) | ATE338930T1 (en) |
| AU (1) | AU2002222507A1 (en) |
| DE (1) | DE60122920T2 (en) |
| DK (1) | DK1334324T3 (en) |
| ES (1) | ES2295237T3 (en) |
| IT (1) | ITNA20000075A1 (en) |
| PT (1) | PT1334324E (en) |
| WO (1) | WO2002039044A2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITSA20030004A1 (en) * | 2003-01-16 | 2004-07-17 | Antonio Spoleto | ROTARY OVEN SYSTEM FOR SALT-FREE MELTING OF METAL MATERIALS. |
| IT1396275B1 (en) | 2009-11-09 | 2012-11-16 | Hitech S R L | FULLY MODULAR ALUMINUM ALLOY FOUNDATION PLANT. |
| CN105043096A (en) * | 2015-07-01 | 2015-11-11 | 江苏中储能源装备有限公司 | Compact type phase change heat storage medium melting furnace |
| CN116851721B (en) * | 2023-07-17 | 2024-06-11 | 江苏柯伊诺阀门有限公司 | Casting device for thick large valve castings |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1069340B (en) * | 1959-11-19 | Balzers Vakuum Gesellschaft mit beschränkter Haftung, Frankfurt/M.-Süd | Device for casting and simultaneous degassing of metals | |
| US2193034A (en) * | 1936-05-08 | 1940-03-12 | Mars Georg | Apparatus for treating materials under reduced pressure |
| NO147204C (en) * | 1980-06-30 | 1983-02-23 | Ardal Og Sunndal Verk | PROCEDURE AND DEVICE FOR DISCONTINUOUS WRAPPING OF LIQUID METAL IN A VACUUM ROOM WHICH CONTINUALLY MAINTAINS VACUUM |
| CN86203076U (en) * | 1986-06-30 | 1987-04-08 | 机械工业部上海电缆研究所 | Runner unit for oxygen-free copper casting |
| JPH0783575A (en) * | 1993-09-08 | 1995-03-28 | Mitsubishi Materials Corp | Molten metal tapping runner |
-
2000
- 2000-11-13 IT IT000075A patent/ITNA20000075A1/en unknown
-
2001
- 2001-11-07 CN CNB01803585XA patent/CN100365366C/en not_active Expired - Fee Related
- 2001-11-07 JP JP2002541327A patent/JP4129914B2/en not_active Expired - Fee Related
- 2001-11-07 DK DK01993806T patent/DK1334324T3/en active
- 2001-11-07 DE DE60122920T patent/DE60122920T2/en not_active Expired - Lifetime
- 2001-11-07 EP EP01993806A patent/EP1334324B1/en not_active Expired - Lifetime
- 2001-11-07 AT AT01993806T patent/ATE338930T1/en active
- 2001-11-07 AU AU2002222507A patent/AU2002222507A1/en not_active Abandoned
- 2001-11-07 ES ES01993806T patent/ES2295237T3/en not_active Expired - Lifetime
- 2001-11-07 WO PCT/IT2001/000557 patent/WO2002039044A2/en active IP Right Grant
- 2001-11-07 PT PT01993806T patent/PT1334324E/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| ITNA20000075A1 (en) | 2002-05-13 |
| DE60122920T2 (en) | 2007-06-21 |
| DE60122920D1 (en) | 2006-10-19 |
| ES2295237T3 (en) | 2008-04-16 |
| CN100365366C (en) | 2008-01-30 |
| DK1334324T3 (en) | 2007-01-15 |
| WO2002039044A2 (en) | 2002-05-16 |
| ITNA20000075A0 (en) | 2000-11-13 |
| CN1394272A (en) | 2003-01-29 |
| ATE338930T1 (en) | 2006-09-15 |
| JP4129914B2 (en) | 2008-08-06 |
| AU2002222507A1 (en) | 2002-05-21 |
| EP1334324B1 (en) | 2006-09-06 |
| PT1334324E (en) | 2007-01-31 |
| WO2002039044A3 (en) | 2002-08-22 |
| EP1334324A2 (en) | 2003-08-13 |
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