Outotec (finland) Oy

Outotec Oyj

Metso Outotec Finland Oy

Peter Björklund

Tapio Ahokainen

Lauri P Pesonen

Markku Lahtinen

Kaarle Peltoniemi

Aki Laaninen

Jussi Sipilä

Kaj Eklund

Elli Miettinen

Mikael P Jåfs

Jaana Romppanen

Valtteri Sonninen

Oskari Karhuvaara

Jiliang Xia

Kari Pienimäki

Sarianna Suominen

Jani Jansson

Matti Luomala

Pekka Saari

Markku Ylönen

Tuomo Jokinen

Harri Rannikko

Maija Metsärinta

Jorma Myyri

Mikael Jåfs

Lauri Pesonen

Mikael JÅFS

Provided are a method and to an arrangement for monitoring characteristics of a furnace process in a furnace space limited by a furnace shell of a metallurgical furnace. The arrangement comprises a process monitoring unit having a frame mounted by means of a mounting means on the metallurgical furnace outside the furnace space of the furnace shell. Also provided is a process monitoring unit for use in the method and/or in the arrangement.

Method and arrangement for monitoring characteristics of a furnace process in a furnace space and process monitoring unit

The invention relates to a method for controlling suspension in a suspension smelting furnace. The method comprises feeding additionally to pulverous solid matter and additionally to reaction gas reducing agent into the suspension smelting furnace, wherein reducing agent is fed in the form of a concentrated stream of reducing agent through the suspension in the reaction shaft onto the surface of the melt to form a reducing zone containing reducing agent within the collection zone of the melt.

Method for controlling the suspension in a suspension smelting furnace

Provided are a method and an arrangement for operating a metallurgical furnace. The method comprises a feeding step, and a temperature controlling step for controlling the temperature of a molten metal layer and a slag layer in a furnace space of the metallurgical furnace. The temperature controlling step comprises a first measuring step for measuring the slag temperature (T), a second measuring step for measuring the slag liquidus temperature (T), and a calculating step for calculating a superheat temperature (T) by calculating the temperature difference between the slag temperature (T) and the slag liquidus temperature (T). In case the calculated superheat temperature (T) is outside a predefined superheat temperature range (T), the method comprises an adjusting step for adjusting to adjust the actual superheat temperature. Also provided are computer program products.

Method and arrangement for operating a metallurgical furnace and computer program product

A method and an arrangement for controlling a burner of a suspension smelting furnace. The burner includes a reaction gas feeding device, and a fine solids feeding device. The fine solids feeding device being at an upstream end of the fine solids feeding device pivotably supported in the reaction gas feeding device. The burner including by at least one first mechanical actuator configured to center the fine solids feeding device in the annular reaction gas outlet opening. Said at least one first mechanical actuator being in response to receiving the control signal configured to perform a centering action to center the fine solids channel in the annular reaction gas outlet opening.

Method and arrangement for controlling a burner of a suspension smelting furnace

A feed mixture distribution device configured to even out a feed of feed mixture in an annular feed mixture feed channel of a burner. The feed mixture distribution device includes a cylindrical member having a cylindrical wall, a first end, a second end, and a longitudinal central axis X. The cylindrical member is at the first end provided with rectangular flat plate means, which extend radially from the cylindrical wall of the cylindrical member and which are arranged symmetrically about the longitudinal central axis X of the cylindrical member. The cylindrical wall of the cylindrical member is between the rectangular flat plate and the second end provided with helical plate means arranged symmetrically about the longitudinal central axis X of the cylindrical member.

Feed mixture distribution device

Provided are a burner such as a concentrate burner, a calcine burner, or a matte burner, or a burner using a mixture of these for feeding reaction gas and fine solids into a reaction shaft of a suspension smelting furnace, and a fine solids feeding apparatus for a burner such as a concentrate burner, a calcine burner, or a matte burner, or a burner using a mixture of these. The fine solids feeding apparatus comprises gas outlets in a fine solids discharge channel upstream of a downstream outlet end of the fine solids discharge channel. The gas outlets comprise spiral path guiding members configured to facilitate gas to flow from the gas outlets in a spiral flow path around a center axis A of the fine solids discharge channel.

Burner and fine solids feeding apparatus for a burner

The invention relates to a method and to an arrangement for feeding feed material from a bin () for feed material into a furnace space of a smelting furnace. The method comprises a first providing step for providing a feed material feeding arrangement () for feeding feed material from the bin () for feed material into the furnace space of the smelting furnace (), and a feeding step for feeding feed material from the bin () for feed material into the furnace space of the smelting furnace. The method comprises additionally a second providing step for providing at least one sensor () for measuring flow of feed material at a position between the bin () for feed material and the furnace space of the smelting furnace (), and a measuring step for measuring flow of feed material by means of said at least one sensor () at said position.

Method and arrangement for feeding feed material from a bin for feed material into a furnace space of a smelting furnace

The invention relates to a method and to an arrangement for feeding fine-grained matter to a concentrate or matte burner () of a suspension smelting furnace (). The arrangement comprising a fluidization arrangement () for feeding fluidized fine-grained matter into a dosing bin (), and a conveyor means () for feeding fluidized fine-grained matter from the dosing bin () to the concentrate or matte burner () of the suspension smelting furnace (), and a loss-in-weight controller () between the dosing bin () and the conveyor means (). The arrangement comprises an impact cone () arranged below a filling valve () between the fluidization arrangement () and the dosing bin () for distributing fluidized fine-grained matter flowing from the fluidization arrangement () within the dosing bin ().

Method and arrangement for feeding fine-grained matter to a concentrate or matte burner of a suspension smelting furnace

Provided are a method and an arrangement for monitoring performance of a burner of a suspension smelting furnace. The burner is arranged at the top structure of a reaction shaft of the suspension smelting furnace. The burner has a solids feeding channel that has a solids outlet opening up into the reaction shaft, and a reaction gas channel comprising a reaction gas channel a that has a reaction gas outlet opening up into the reaction shaft. The arrangement comprises at least one imaging means for producing images representing the cross-section of the reaction gas channel, and a processing means for receiving images of the cross-section of the reaction gas channel from the imaging means.

Method and arrangement for monitoring performance of a burner of a suspension smelting furnace

The invention relates to an arrangement for feeding fine-grained matter to a concentrate or matte burner () of a suspension smelting furnace (). The arrangement includes a screw conveyor () comprising a tube means () having an inlet opening (), an downward-facing outlet opening (), and a helical screw () for moving fine-grained matter from the inlet opening () to the downward-facing outlet opening (). The downward-facing outlet opening () is provided with a distribution means (). The distribution means () has a free end () configured for feeding fine-grained matter into the downward-facing outlet opening (). The helical screw () of the screw conveyor () extends from the direction of the inlet opening () at least partly over the downward-facing outlet opening ().

Arrangement for feeding fine-grained matter to a concentrate or matte burner of a suspension smelting furnace

An arrangement for feeding fine-grained matter to a concentrate or matte burner () of a suspension smelting furnace (). The arrangement comprising a fluidization arrangement () for feeding fluidized fine-grained matter into a dosing bin (), and a conveyor means () for feeding fluidized fine-grained matter from the dosing bin () to the concentrate or matte burner () of the suspension smelting furnace (), and a loss-in-weight controller () between the dosing bin () and the conveyor means (). The arrangement comprises an impact cone () arranged below a filling valve () between the fluidization arrangement () and the dosing bin () for distributing fluidized fine-grained matter flowing from the fluidization arrangement () within the dosing bin ().

The invention relates to a method of using a suspension smelting furnace and to a suspension smelting furnace and to a concentrate burner (). The concentrate burner () comprises a first gas supply device () for feeding a first gas () into the reaction shaft () and a second gas supply device () for feeding a second gas () into the reaction shaft (). The first gas supply device () comprises a first annular discharge opening (), which which is arranged concentrically with the mouth () of a feeder pipe (), so that the first annular discharge opening () surrounds the feeder pipe (). The second gas supply device () comprises a second annular discharge opening (), which is arranged concentrically with the mouth () of the feeder pipe (), so that the second annular discharge opening () surrounds the feeder pipe () opening ().

Method of using a suspension smelting furnace, a suspension smelting furnace, and a concentrate burner

The invention relates to a suspension smelting furnace comprising a reaction shaft (), an uptake shaft (), and a lower furnace (), as well as a concentrate burner () for feeding reaction gas and fine solids into the reaction shaft () of the suspension smelting furnace. The concentrate burner () comprises a fine solids discharge channel () that is radially limited by the wall () of the solids discharge channel, a fine solids dispersion device () in the fine solids discharge channel (), an annular reaction gas channel () that surrounds the fine solids discharge channel () and is radially limited by the wall () of the annular reaction gas channel (), and a cooling block () that surrounds the annular reaction gas channel (). The cooling block () is a component that is manufactured by a continuous casting method. The cooling block () is attached to the arch () of the reaction shaft () and the wall () of the annular reaction gas channel (), so that the discharge orifice () of the annular reaction gas channel () is formed between a structure (), which is jointly formed by the cooling block () and the wall () of the annular reaction gas channel (), and the wall () of the solids discharge channel. The invention also relates to a concentrate burner () for feeding reaction gas and fine solids into the reaction shaft () of a suspension smelting furnace.

Suspension smelting furnace and a concentrate burner

The invention relates to a method and to an arrangement for feeding fine-grained matter to a concentrate burner () or a matte burner of a suspension smelting furnace (). The invention relates also to a controlling means for controlling feeding of fine-grained matter to a concentrate burner () or a matte burner of a suspension smelting furnace () in an arrangement for feeding fine-grained matter to a concentrate burner () or a matte burner of a suspension smelting furnace (). The invention relates also to controlling means for controlling feeding of fine-grained matter to a concentrate burner () or a matte burner of a suspension smelting furnace () in an arrangement for feeding fine-grained matter to a concentrate burner () or a matte burner of a suspension smelting furnace () and to a computer program product.

Method and arrangement for feeding fine-grained matter to a concentrate burner or a matte burner of a suspension smelting furnace and controlling means and computer program product

The invention relates to method and to an arrangement for removing outgrowth in a suspension smelting furnace. The suspension smelting furnace comprising a reaction shaft having a reaction shaft structure. The reaction shaft comprises at least one opening for an outgrowth removal means. The movable piston is arranged such that the movable piston can move in the opening in the reaction shaft and into the reaction shaft to push possible outgrowth in the reaction shaft.

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Espoo, Finland

Peter Björklund