公开(公告)号：WO2015172237A1

公开(公告)日：2015-11-19

申请号：PCT/CA2015/000325

申请日：2015-05-19

Applicant: PYROGENESIS CANADA INC.

Inventor： CARABIN, Pierre ,  DROUET, Michel G.

IPC: H05H1/42 ,  H05H1/28 ,  H05H1/34

CPC classification number: H05H1/34 ,  H05H2001/3426 ,  H05H2001/3452 ,  H05H2001/3468 ,  H05H2001/3494

Abstract: An apparatus is disclosed wherein an electric arc is employed to heat an injected gas to a very high temperature. The apparatus comprises four internal components: a button cathode and three cylindrical co-axial components, a first short pilot insert, a second long insert and an anode. Vortex generators are located between these components for generating a vortex flow in the gas injected in the apparatus and which is to be heated at very high temperature by the electric arc struck between the anode and cathode. Cooling is provided to prevent melting of three of the internal components, i.e. the cathode, the anode and the pilot insert. However, to limit the heat loss to the cooling fluid, the long insert is made of an insulating material. In this way, more electrical energy is transferred to the gas.

Abstract translation: 公开了一种使用电弧将注入的气体加热到非常高的温度的装置。 该装置包括四个内部部件：按钮阴极和三个圆柱形同轴部件，第一短引导插入件，第二长插入件和阳极。 涡流发生器位于这些部件之间，用于在注入到设备中的气体中产生涡流，并且通过在阳极和阴极之间的电弧被加热到非常高的温度。 提供冷却以防止三个内部部件即阴极，阳极和引导插入物的熔化。 然而，为了限制对冷却流体的热损失，长插入件由绝缘材料制成。 以这种方式，更多的电能转移到气体中。

公开(公告)号：WO2013078549A1

公开(公告)日：2013-06-06

申请号：PCT/CA2012/001107

申请日：2012-12-03

Applicant: PYROGENESIS CANADA INC.

Inventor： DROUET, Michel G. ,  CARABIN, Pierre

IPC: B22D5/04 ,  B01J2/04 ,  F27D11/08 ,  H05H1/42

CPC classification number: C22B1/2406 ,  C22B1/20 ,  C22B1/2413 ,  F27B21/06 ,  H05H1/34 ,  H05H1/44 ,  H05H2001/3452 ,  Y02P10/143

Abstract: In the present pelletizing apparatus, the induration of iron ore concentrate pellets is achieved in a tunnel furnace heated by plasma torches, wherein the generation of CO2 by the conventional iron ore pelletizing processes is reduced by using electricity powered plasma torches instead of burning natural gas, heavy oil or pulverized coal in burners, thereby reducing considerably industrial pollution of the atmosphere.

Abstract translation: 在本造粒装置中，在由等离子炬加热的隧道炉中实现铁精矿颗粒的硬化，其中通过使用电动等离子体火炬而不是燃烧天然气，通过常规铁矿石造粒方法产生CO 2， 重油或燃煤中的粉煤，从而大大减少工业上的大气污染。

公开(公告)号：WO2013056348A1

公开(公告)日：2013-04-25

申请号：PCT/CA2012/000958

申请日：2012-10-18

Applicant: PYROGENESIS CANADA INC.

Inventor： DROUET, Michel G. ,  RIVARD, Francois ,  CARABIN, Pierre

IPC: C22B7/00 ,  C22B13/00 ,  C22B19/30 ,  C22B21/00 ,  C22B23/00 ,  F27B7/20

CPC classification number: C22B21/0092 ,  C22B5/00 ,  C22B7/003 ,  C22B7/04 ,  C22B9/055 ,  C22B13/045 ,  C22B19/20 ,  C22B21/00 ,  C22B21/0069 ,  C22B21/064 ,  C22B23/04 ,  F27B7/06 ,  F27B7/10 ,  F27B7/16 ,  F27B7/2016 ,  F27B17/00 ,  F27D3/16 ,  F27D2003/163 ,  F27D2003/167 ,  Y02P10/218 ,  Y02P10/232 ,  Y02P10/262

Abstract: A process and an apparatus are disclosed for improved recovery of metal from hot and cold dross, wherein a dross-treating furnace is provided with a filling material with good capacity to store heat. This filling material is preheated to a desired temperature by injection of an oxidizing gas to bum non- recoverable metal remaining in the filling material after tapping of the recoverable metal contained in the dross and discharging of the treatment residue, When dross is treated in such furnace, the heat emanating by conduction from the filling material is sufficient to melt and separate the recoverable metal contained in the dross, without addition of an external heat source, such as fuel or gas burners, plasma torches or electric arcs and without use of any salt fluxes. Furthermore, the recovered metal being in the molten state can be fed to the molten metal holding furnace without cooling the melt; in addition, the non-use of fluxing salt for the treatment means that the non- contaminated residue can be used as a cover for the electrolytic cells in the case of aluminum. In the case of zinc dross, the residue is a valuable zinc oxide by-product very low in contaminants.

Abstract translation: 公开了一种用于改进热和冷渣的金属回收的方法和设备，其中渣滓炉处理炉提供具有良好的储热能力的填充材料。 通过注入氧化气体将该填充材料预热到所需的温度，以便在渣中所含的可回收金属轻敲和处理残余物排出之后留在填充材料中的不可回收金属燃烧，并且在该炉中处理浮渣 由填充材料传导发出的热量足以熔化和分离浮渣中所含的可回收金属，而不需要加入外部热源，例如燃料或气体燃烧器，等离子炬或电弧，并且不使用任何盐 通量。 此外，处于熔融状态的回收金属可以在不冷却熔体的情况下供给到熔融金属保温炉中; 此外，不使用助熔盐进行处理意味着在铝的情况下，未污染的残留物可以用作电解池的覆盖物。 在锌渣的情况下，残渣是一种有价值的氧化锌副产物，污染物含量很低。