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1. 发明授权

US5393954A Plasma torch with power supply for equalizing wear to prolong the lifespan of an electrode of the torch 失效
标题翻译：带电源的等离子火炬，用于均衡磨损，以延长割炬电极的寿命
公开(公告)号：US5393954A
公开(公告)日：1995-02-28
申请号：US231838
申请日：1994-04-25
申请人： Pierre Pasquini , Jacques Nuns
发明人： Pierre Pasquini , Jacques Nuns
IPC分类号： H05H1/36 , H05H1/40 , B23K10/00
CPC分类号： H05H1/40 , H05H1/36
摘要： The plasma torch (10; 11, 12, 14) comprises an electrical power supply (20) with an arc circuit (21) and a coil circuit (22) which are mounted in series and with means (30) for controlling the level of the current flowing in the coil (22) consisting, inter alia, mounted in parallel with this coil (14), of a chopper consisting of a battery of capacitors (31) and of at least one electronic power switch (32) which may be placed distant from the coil. The electronic switch is preferably of the thyristor diode (321, 322) type, with a resonant turn-off circuit (31, 323).A variant of this chopper uses at least one electronic switch of the GTO thyristor type, controllable in triggering and in switching off, or at least one conventional thyristor equipped with an auxiliary extinction circuit.Application to high-power torches, for industrial, for example metallurgical, use.
摘要翻译：等离子体焰炬（10; 11,12,14）包括具有弧形电路（21）和线圈电路（22）的电源（20），所述电源电路与线圈电路（22）串联安装，并具有用于控制电平在线圈（22）中流动的电流尤其包括与该线圈（14）并联安装的由电容器电池（31）和至少一个电子电源开关（32）构成的斩波器，其可以是放置远离线圈。电子开关优选为晶闸管二极管（321,322）型，具有谐振断开电路（31,323）。这种斩波器的一个变型使用至少一个GTO晶闸管类型的电子开关，可触发和断开控制，或者至少有一个常规晶闸管配备有辅助消光电路。应用于大功率火炬，适用于工业，例如冶金，使用。

2. 发明授权

US5755853A Process for the treatment of solid residues containing metals, in particular residues from the cleaning of household garbage incineration smoke 失效
标题翻译：用于处理含有金属的固体残余物的方法，特别是清洁家用垃圾焚烧烟雾的残留物
公开(公告)号：US5755853A
公开(公告)日：1998-05-26
申请号：US764015
申请日：1996-12-11
申请人： Pierre Pasquini , Roger Meunier , Olivier Leclerc , Fabrice Lebrun
发明人： Pierre Pasquini , Roger Meunier , Olivier Leclerc , Fabrice Lebrun
IPC分类号： F23G5/00 , A62D3/37 , A62D3/38 , A62D101/08 , A62D101/43 , B09B5/00 , C03C6/00 , F23J1/00 , F23J15/04 , C22B9/00
CPC分类号： A62D3/38 , A62D3/37 , A62D2101/08 , A62D2101/43 , A62D2203/04
摘要： This process comprises; mixing (1) the solid residues with a solid reducing agent; treating (2) the mixture in a furnace at a temperature above 1000.degree. C. to obtain (3) a vitrified product rendered poor in metals and an emission of gas enriched in metallic elements in a vapour phase; air quenching (4) the gases rich in metals; filtering (5) the products resulting from the air quenching to obtain secondary ashes rich in metallic salts; at the end of the filtering operation, washing the smoke (6) for discharging it to the atmosphere; and subjecting the secondary ashes rich in metallic salts to a treatment for producing a product rich in valuable metals (7 to 10).
摘要翻译：这个过程包括将固体残余物与固体还原剂混合（1）; 在高于1000℃的温度下在炉中处理（2）混合物，以获得（3）在气相中富含金属元素的富含金属的玻璃化产物和富含金属元素的气体的发射; 空气淬火（4）富含金属的气体; 过滤（5）由空气淬火产生的产品，以获得富含金属盐的二次灰; 在过滤操作结束时，清洗烟雾（6）以将其排放到大气中; 并且将富含金属盐的二次灰分进行处理，以生产富含贵金属的产品（7至10）。

3. 发明授权

US5376768A Method for equalizing wear to prolong the lifespan of a plasma torch electrode 失效
标题翻译：均衡磨损方法，延长等离子炬电极的使用寿命
公开(公告)号：US5376768A
公开(公告)日：1994-12-27
申请号：US998924
申请日：1992-12-30
申请人： Pierre Pasquini , Jacques Nuns
发明人： Pierre Pasquini , Jacques Nuns
IPC分类号： H05H1/36 , H05H1/40 , B23K10/00 , B23K9/06
CPC分类号： H05H1/40 , H05H1/36
摘要： The plasma torch (10; 11, 12, 14) comprises an electrical power supply (20) with an arc circuit (21) and a coil circuit (22) which are mounted in series and with means (30) for controlling the level of the current flowing in the coil (22) consisting, inter alia, mounted in parallel with this coil (14), of a chopper consisting of a battery of capacitors (31) and of at least one electronic power switch (32) which may be placed distant from the coil. The electronic switch is preferably of the thyristor diode (321, 322) type, with a resonant turn-off circuit (31, 323).A variant of this chopper uses at least one electronic switch of the GTO thyristor type, controllable in triggering and in switching off, or at least one conventional thyristor equipped with an auxiliary extinction circuit.Application to high-power torches, for industrial, for example metallurgical, use.
摘要翻译：等离子体焰炬（10; 11,12,14）包括具有弧形电路（21）和线圈电路（22）的电源（20），所述电弧电路（21）和线圈电路（22）串联安装，并且具有用于控制在线圈（22）中流动的电流尤其包括与该线圈（14）并联安装的由电容器电池（31）和至少一个电子电源开关（32）构成的斩波器，其可以是放置远离线圈。电子开关优选为晶闸管二极管（321,322）型，具有谐振断开电路（31,323）。这种斩波器的一个变型使用至少一个GTO晶闸管类型的电子开关，可触发和断开控制，或者至少有一个常规晶闸管配备有辅助消光电路。应用于大功率火炬，适用于工业，例如冶金，使用。

4. 发明授权

US4847466A Plasma torch having a longitudinally mobile arc root, and process for controlling the displacement thereof 失效
标题翻译：具有纵向移动弧根的等离子体手电筒，以及用于控制其位移的工艺
公开(公告)号：US4847466A
公开(公告)日：1989-07-11
申请号：US141188
申请日：1988-01-06
申请人： Pierre Pasquini , Maxime Labrot , Jean-Pierre Serrano , Didier Pineau
发明人： Pierre Pasquini , Maxime Labrot , Jean-Pierre Serrano , Didier Pineau
IPC分类号： H05H1/32 , B05B7/22 , C21B5/00 , H05H1/34 , H05H1/36 , H05H1/40
CPC分类号： H05H1/34 , H05H1/36 , H05H1/40 , H05H2001/3431 , H05H2001/3468 , H05H2001/3494
摘要： The invention concerns plasma torches comprising an upstream electrode (12), a downstream electrode (11), a chamber (15) for the injection of plasma producing gas, a priming electrode (13) and optionally a magnetic field coil (14), in which the upstream root of the arc is displaced on the upstream electrode. According to the invention, in order to control a continuous or reciprocating and/or an oscillatory translation, the field coil is supplied with a variable direct current, if need be a pulsatory undulatory current, and/or a diffuser is placed at the inner end of the upstream electrode which is supplied with a modulated flow of gas which it causes to whirl. Application in high power plasma torches for regularizing and rendering uniform the wear of the electrodes so as to prolong the life thereof.
摘要翻译：本发明涉及等离子体炬，其包括上游电极（12），下游电极（11），用于注入等离子体产生气体的腔室（15），起动电极（13）和可选的磁场线圈（14）电弧的上游根部在上游电极上移位。根据本发明，为了控制连续或往复和/或振荡平移，如果需要脉动波动电流，则向励磁线圈提供可变直流电流，和/或扩散器设置在内端的上游电极，其供应有调节的气体流，这使得其旋转。在大功率等离子体焰炬中的应用，使电极的磨损均匀化和均匀化，从而延长其寿命。

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