TH38747B - Metal smelting furnace - Google Patents

Abstract

DC60 (05/04/56) Fabrication involves the structure of the lower section of the furnace (1) comprising the lower part (2) and the wall (3) as well as the steel structure. (6, 21) where the external surface will be assembled. and the internal refractory brick lining (12), the bottom (2) and the wall (3) are connected to each other. It is characterized by the fact that the walls (3) of the furnace (1) are divided into the lower sections (4) and the upper sections (30), where the steel structure (21) of the lower sections (4 ) is a separate ring comprising sections (23), joints (19) arranged between sections (23) and arranged to expand. The invention also relates in addition to the method for controlling the expansion of the furnace (1). The fabrication involves the structure of the lower part of the furnace (1) comprising the bottom part (2) and the wall ( 3) Both components incorporate a steel structure (6,21) which shall form the external surface. and the internal refractory brick lining (12), the bottom (2) and the wall (3) are connected to each other. It is characterized by the fact that the walls (3) of the furnace (1) are divided into the lower (4) and upper (30) sections, in which the steel structure (21) of the lower (4) is A separate ring consisting of sections (23), joints (19) is arranged. Prepare between sections (23) and placement to expand. The invention also involves additional methods. For controlling the expansion of the furnace (1)

Claims (9)

1. The structure of the lower part of the metal smelting furnace (1) that consists of the lower part (2) and the wall (3), both of which are composed of a primary steel structure (6,21) that will be External surface And the internal fire-resistant brick lining (12), the bottom (2) and the wall (3) that are connected to each other. Characterized by the walls (3) of the furnace (1) will be divided into the bottom (4) and the top. Where the steel structure (21) of the bottom section (4) is a separate ring consisting of section (23), joint (19) arranged between section (23) and an enlarged place. out And provided that the sled joint (20) is provided between the bottom (4) of the wall (3) and the top (30) of the wall (3). 2. Structure according to claim 1 Characteristically that the joints (19) of section (23) are malleable joints such as friction joints, spring joints, or similar. 3. The structure according to claim 2, which is characterized by a flexible joint, that is, a friction joint or a spring joint. 4. The structure, according to claim 1, is characterized by that the cooling element (22) will be provided between the bottom (4) of the wall (3) and the brick lining. Internal fire resistance For at least part of the way 5. Any claim structure of Clause 1 to Clause 4 that is unique are: There is an artificial bottom (13) provided under the bottom (2) of the furnace (1) that forms a channel system (14) between the artificial bottom (13) and the steel structure (7). ) Of the bottom part (2) 6. The structure (1) according to claim 5 is characterized by at least one dryer. It will be connected to the channel system (14). 7. The unique method for controlling the expansion of the blast furnace (1) is the side The bottom of the loop (4) of the wall (3) will be marked as part (23) in the direction. The circumference of the furnace (1) and the recoil bottom section (4) are allowed to expand by means of joints (19) between sections (23) when the furnace (1) is heated. And where the recirculation bottom (4) of the wall (3), which joins the bottom (2) of the furnace (1), is connected to the cylindrical top (30). ) Of the wall (3) of the furnace (1) by the sliding joint (20), when the channel system (14) is formed between the bottom (2) of the furnace (1) and the Below the harness (13) the air that is blown into the cavity system by the ejector at least One for temperature control of the brick lining (12) of the bottom (2). 8. A unique approach to claim 7 is that the inner temperature of the inner brick layer (8) of the bottom (2) of the furnace (1) has been mitigated through cooling. until Temperature one Where particles of solid molten matter at low temperatures settle within the innermost brick layer (8) of the bottom (2). 9. A unique method of claim 8 is that the temperature inside the innermost brick layer (8) of the bottom (2) of the furnace (1) has been mitigated by means of cooling. Up to about 650 ° C to 800 ° C depending on the material of molten material