Abstract:
선회슈트의 길이가 동일한 조건에서 장입물을 더 멀리, 보다 정확하게 보낼 수 있도록, 원료가 투입되는 투입관 하단에 선회 가능하게 설치되어 원료의 투입 분포를 제어하는 선회슈트를 포함하는 용융로의 원료 장입장치에서, 상기 선회슈트는 원료가 배출되는 축방향을 따라 내면 중 적어도 일부가 곡면 형태의 단면 구조로 형성되는 용융로의 원료 장입장치를 제공한다.
Abstract:
Die vorliegende Erfindung betrifft eine Vorrichtung zum Verschließen oder Öffnen einer Bodenöffnung eines Materialbunkers für einen Hochofen (Gichtverschluss).
Abstract:
The invention relates to a bellow compensator for a charging installation of a metallurgical furnace. The bellow compensator comprises an inlet end pipe 40 and an opposite outlet end pipe 42 and a bellow section 44 arranged between the inlet end pipe 40 and the outlet end pipe 42, the bellow section 44 being formed by a series of folds and allowing relative movement between the inlet end pipe 40 and the outlet end pipe 42. According to the present invention, a non-structural flexible liner 60, preferably wire mesh gasket, is arranged along an inner wall 62 of the bellow compensator and extends over at least some of the length of the bellow section 44. The non-structural flexible liner 60 has a first end 64 and a second end 66, wherein the first end 64 is fixedly connected to the inlet end pipe 40 and the second end 66 is fixedly connected to the outlet end pipe 42.
Abstract:
A method of fluxing or degassing a molten metal residing as a bath in a furnace. The bath of molten metal includes a bath surface height and the method provides at least one rotating impeller in the molten metal bath to initiate a flow of the molten metal. The flow in the molten metal results in elevating a portion of the molten metal above the bath surface height where at least one of a fluxing agent and an inert gas is introduced into the elevated portion of the molten metal.
Abstract:
The invention relates to a method and to an arrangement for feeding feed material from a bin (10) 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 (9) for feeding feed material from the bin (10) for feed material into the furnace space of the smelting furnace (1), and a feeding step for feeding feed material from the bin (10) 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 (11) for measuring flow of feed material at a position between the bin (10) for feed material and the furnace space of the smelting furnace (1), and a measuring step for measuring flow of feed material by means of said at least one sensor (11) at said position.
Abstract:
A hopper apparatus (100) provides a conveyance passage (150) equipped with a nitrogen purge system. In operation, the hopper apparatus (100) is installed over an opening of a process vessel (200). Chemical matter may be conveyed through the conveyance passage (150) to land within the process vessel (200). The hopper apparatus may have a flap valve (141) that serves to isolate the interior space of a process vessel (200) from the ambient environment outside the process vessel (200). The hopper apparatus (100) may also inject nitrogen at various rates into the falling stream of chemical matter as it is conveyed into a process vessel (200). The hopper apparatus (100) may also provide a ventilation sleeve (180) providing ventilation and extraction of dust and vapors emitted from the falling stream of chemical matter.
Abstract:
A rotary charging device for a shaft furnace comprising: a stationary housing (16) and a suspension rotor (22) that is supported so that it can rotate about a substantially vertical axis (A), a charge distributor (28) being pivotally suspended to the suspension rotor (22). Rotary drive means are provided for rotating the suspension rotor about its axis (A) and tilting drive means for pivoting the charge distributor (28) about a substantially horizontal pivoting axis (B), independently from said rotary drive means. The tilting drive means are mounted onto the suspension rotor (22) and rotate therewith; they comprise: an electric tilting motor (MB) is installed inside the main casing (36) and having a substantially horizontal output shaft (52); a tilting input gear (54) driven by the tilting motor output shaft; and a tilting output gear (56) rotationally integral with a suspension arm (34) of said chute distributor (28), said tilting input gear meshing with said tilting output gear.
Abstract:
A blast furnace installation comprises a blast furnace and a chute transmission gearbox (20); the blast furnace comprising a top cone (12) with a top cone ring (24) arranged thereon for receiving a connection flange (28) of the chute transmission gearbox (20). The connection flange (28) is directly fixed onto the top cone ring (24) by fixing means (32) for establishing a firm connection between the top cone ring (24) and the connection flange (28). According to an aspect of the present invention, the connection flange (28) is fixed to the top cone ring (24) in three separated fixation regions (30, 30', 30''), each fixation region (30, 30', 30'') comprising one or more fixing means (32). According to a further aspect of the present invention, the blast furnace installation also comprises a flexible sealing element (36) arranged around the perimeter of the connection between the top cone ring (24) and the chute transmission gearbox (20).
Abstract:
The invention relates to a device for producing pig iron, comprising a fusion gasifier (1) and a coal line (2) for feeding energy carriers into the fusion gasifier (1), wherein the coal line (1) comprises a first storage bunker (3) for energy carriers, a first extraction device (4) for extracting energy carriers from the first storage bunker (3) for energy carriers, said first extraction device leading into a charging device of the fusion gasifier, proceeding from said storage bunker (3) for energy carriers. The device is characterized in that there is provided a second extraction device (7) for extracting energy carriers from the first storage bunker (3) for energy carriers or for extracting energy carriers from a second storage bunker (8) for energy carriers, said second extraction device (7) leading into the charging device (6) of the fusion gasifier or into the first extraction device (4) for extracting energy carriers from the first storage bunker (3) for energy carriers.
Abstract:
L'ensemble à trappe et clapet pour un dispositif de chargement d'un four à cuve, tel qu'un haut-fourneau, comporte un corps (1) à l'intérieur duquel est placé au moins une trappe (21) et/ou un clapet (31), entraîné(e) en pivotement par un actionneur (25, 35) situé à l'extérieur du corps et relié à la trappe ou clapet par un arbre de liaison guidé dans un palier fixe par rapport au corps. Le palier (24, 34) et l'actionneur (25, 35) sont montés sur une porte (26, 36) démontable obturant une ouverture (13, 15) réalisée dans la paroi du corps (1) et dont les dimensions sont déterminées de manière que la trappe ou le clapet puisse être extrait transversalement à l'axe du corps à travers ladite ouverture.