An electronic cigarette for smoldering tobacco materials housed in a cigarette cartridge has a heater, and first and second heat conductors. The heater generates heat by using a resistance wire, or via ionizing air, e.g., an electric arc generator. The first heat conductor, which receives heat from the heater, directly contacts an outer surface of the cigarette cartridge for heating the tobacco materials through the cigarette cartridge's outer surface. The second heat conductor penetrates into a center of the cigarette cartridge, and has a heating element for heating the tobacco materials via the cigarette cartridge's center. Hence, the tobacco materials are heated from both inside and outside of the cigarette cartridge simultaneously, thereby smoldering the tobacco materials more completely and resulting in a better taste. During ionizing the air, the heater may further generate a gaseous air-purifying agent for air purification, e.g., negative ions generated by the electric arc generator.

The invention relates to a remelting plant comprising a furnace chamber (50), which can be positioned over a crucible (60) of a melting station, an electrode rod (48), which by way of a lead-through (52) can be inserted or is inserted in the furnace chamber (50), in order to contact a consumable electrode (58), and a guide column (30), on which an electrode rod carriage (40) that is fixed-ly connected to the electrode rod (48) is guided in an axially movable manner, in order to move the electrode rod (48) in relation to the furnace chamber (50), and on which a chamber carriage (38), which is connected or can be connected to the furnace chamber (50), is guided in an axially movable manner, in order to move the furnace chamber (50). The guide column (30) is articulatedly connected at a first end to a rotary column (18) such that the guide column (30) can be inclined in re-lation to the rotary column (18) and can be rotated together with the rotary column (18) about the axis of rotation (24) of the rotary column (18). The guide column (30) has in the region of the first end a weighing device (36), which is preferably attached to the rotary column (18).

The invention relates to a remelting plant comprising a furnace chamber (50), which can be positioned over a crucible (60) of a melting station, an electrode rod (48), which by way of a lead-through (52) can be inserted or is inserted in the furnace chamber (50), in order to contact a consumable electrode (58), and a guide column (30), on which an electrode rod carriage (40) that is fixed-ly connected to the electrode rod (48) is guided in an axially movable manner, in order to move the electrode rod (48) in relation to the furnace chamber (50), and on which a chamber carriage (38), which is connected or can be connected to the furnace chamber (50), is guided in an axially movable manner, in order to move the furnace chamber (50). The guide column (30) is articulatedly connected at a first end to a rotary column (18) such that the guide column (30) can be inclined in re-lation to the rotary column (18) and can be rotated together with the rotary column (18) about the axis of rotation (24) of the rotary column (18). The guide column (30) has in the region of the first end a weighing device (36), which is preferably attached to the rotary column (18).

A graphite electrode includes a pole having a socket in an internal screw shape at an end portion, and a nipple in an external screw shape that can be fastened to the socket, wherein a value obtained by subtracting an effective diameter on a small diameter end side of the nipple from an effective diameter on a small diameter end side of the socket is 0.05 to 0.7 mm, and a value obtained by subtracting a taper angle of the socket from a taper angle of the nipple is ?2 minutes to ?3 minutes 30 seconds.

A graphite electrode includes a pole having a socket in an internal screw shape at an end portion, and a nipple in an external screw shape that can be fastened to the socket, wherein a value obtained by subtracting an effective diameter on a small diameter end side of the nipple from an effective diameter on a small diameter end side of the socket is 0.05 to 0.7 mm, and a value obtained by subtracting a taper angle of the socket from a taper angle of the nipple is ?2 minutes to ?3 minutes 30 seconds.

The present disclosure provides a circular electric furnace, and electrode arrangement structure thereof. The electrode arrangement structure of the circular electric furnace comprises: 2n electrodes (11-16) and n single-phase transformers (40) each including two output ends, wherein the 2n electrodes (11-16) are respectively connected to the output ends of the n single-phase transformers (40), and n is an integer2. The electrode arrangement structure of the circular electric furnace of the present disclosure comprises 2n electrodes (11-16) and n single-phase transformers, with n2. That is, the structure comprises at least 4 electrodes and 2 single-phase transformers (40), and one single-phase transformer (40) is connected to two electrodes. In this way, the numbers of electrodes and transformers in the circular electric furnace are effectively increased, and the restriction of a conventional circular electric furnace which can only accommodate three electrodes and one transformer is eliminated, thus effectively increasing the electric power of a circular electric furnace.

The present disclosure provides a circular electric furnace, and electrode arrangement structure thereof. The electrode arrangement structure of the circular electric furnace comprises: 2n electrodes (11-16) and n single-phase transformers (40) each including two output ends, wherein the 2n electrodes (11-16) are respectively connected to the output ends of the n single-phase transformers (40), and n is an integer2. The electrode arrangement structure of the circular electric furnace of the present disclosure comprises 2n electrodes (11-16) and n single-phase transformers, with n2. That is, the structure comprises at least 4 electrodes and 2 single-phase transformers (40), and one single-phase transformer (40) is connected to two electrodes. In this way, the numbers of electrodes and transformers in the circular electric furnace are effectively increased, and the restriction of a conventional circular electric furnace which can only accommodate three electrodes and one transformer is eliminated, thus effectively increasing the electric power of a circular electric furnace.

Contact plate for placing in contact with the wall of an electrode of an electro-metallurgical furnace. The contact plate includes an internal channel having an inlet and at least one outlet. The inlet and outlet are respectively linked to an external intake duct and to at least one external duct for discharging a fluid. An elongate hole (16) has an elongate partition (35) which has opposing elongate edges (39) adjacent to opposing elongate zones (33) of the elongate hole so as to define, in the hole, elongate spaces (16a-16b) on either side of the elongate partition. The elongate partition defines a connecting passage (41) between the elongate spaces and link holes (29) communicating with the elongate spaces being formed at a distance from the connecting passage. The elongate spaces form portions of the internal channel (59).

Contact plate for placing in contact with the wall of an electrode of an electro-metallurgical furnace. The contact plate includes an internal channel having an inlet and at least one outlet. The inlet and outlet are respectively linked to an external intake duct and to at least one external duct for discharging a fluid. An elongate hole (16) has an elongate partition (35) which has opposing elongate edges (39) adjacent to opposing elongate zones (33) of the elongate hole so as to define, in the hole, elongate spaces (16a-16b) on either side of the elongate partition. The elongate partition defines a connecting passage (41) between the elongate spaces and link holes (29) communicating with the elongate spaces being formed at a distance from the connecting passage. The elongate spaces form portions of the internal channel (59).

An electrode slipping device comprises an upper holder and a lower holder, both holders containing one or more clamping shoes and one or more clamping cylinders in co-operation with the clamping shoes. The clamping shoes are operable between a position where the electrode is clamped and a position where the electrode is unclamped. The clamping cylinder is connected to the electrode holder by first fastening means and to the clamping shoe by second fastening means such that the clamping cylinder can be released from engagement with the holder by unlocking both sets of fastening means.