Arrangement for evening out powdery solid matter feed of a concentrate burner of a suspension smelting or suspension converting furnace
A technology for suspending smelting furnaces and solid substances, which is applied in furnaces, electric furnaces, furnace components, etc., and can solve problems such as damage to the reaction furnace wall and poor slag quality
Active Publication Date: 2012-11-28
METSO OUTOTEC (FINLAND) OY
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Problems solved by technology
For example, poor mixing will result in poor slag quality
[0004] Poor distribution of the concentrate also has a noticeable influence on the temperature distribution curve of the reaction shaft; hot zones are created in the suspension smelting furnace, where the autogenous lining formed by the concentrate to protect the reaction shaft will withstand greater heat stress and in the worst case results in damage to the reactor shaft wall
Method used
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Embodiment Construction
[0020] figure 1 An example of a suspension smelting furnace or a suspension conversion furnace 1 is shown, to which powdered solid matter (not shown) such as concentrate, slagging agent and / or flue ash is conveyed via a concentrate burner 2 .
[0021] figure 1 Among them, the powdery solid matter is transported to the upper part of the annular concentrate discharge passage 4 of the powdery solid matter feeding mechanism 3 of the concentrate burner through the first powdery solid matter discharge pipe 8, so that the powdery solid matter acts as a continuous flow And fall through the above-mentioned annular concentrate discharge channel 4 to reach the upper part of the reaction shaft 5 of the suspension smelting furnace or the suspension converting furnace 1 . exist figure 1 , the reactive gas (not shown in the figure) is conveyed from around the annular gas discharge passage 9 to the upper area of the reaction shaft 5 viewed from the direction of the reaction shaft 5 throu...
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The object of the invention is an arrangement for feeding powdery solid matter into a concentrate burner (2) of a suspension smelting or suspension converting furnace (1). The concentrate burner (2) comprises reaction gas feeding means (6), powdery solid matter feeding means (3) and a concentrate distributor (7). The arrangement comprises a first powdery solid matter discharge pipe (8) for feeding powdery solid matter into the powdery solid matter feeding means (3) of the concentrate burner (2). The first powdery solid matter discharge pipe (8) is provided with a first partition (10), which divides solid matter, for dividing the first powdery solid matter discharge pipe (8) into two essentially similar discharge pipe parts (11). The powdery solid matter feeding means (3) of the concentrate burner (2) comprise an annular concentrate discharge channel (4) that surrounds the concentrate distributor (7) of the concentrate burner. Each discharge pipe part (11) of the first powdery solid matter discharge pipe (8) is at least partly divided into two discharge pipe portions (12) by a second partition (13).
Description
technical field [0001] The object of the present invention is to provide a device for feeding powdery solid matter to a concentrate burner of a suspension smelting furnace or a suspension converting furnace as described in the preamble of claim 1 . [0002] The present invention relates to a feeding device for feeding powdery solid matter to a concentrate burner of a suspension smelting furnace (such as a flash smelting furnace), by using the device, the The powdery solid material feed can be pre-distributed evenly into the concentrate burner. Background technique [0003] The powdery solid material feed (such as concentrate, slagging agent and flue ash) can be supplied to the suspension smelting furnace or suspension blowing furnace through the concentrate burner installed on the top of the suspension smelting furnace or suspension blowing furnace. furnace. In the remainder of this text, the term concentrate is exclusively used to refer to all powdery solid substances fed...
Claims
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IPC IPC(8): C22B15/00C22B5/00F27D3/18
CPCF27D3/18C21C5/5217F27B3/18F27B3/205Y02P10/20C22B5/14F27B3/00C21C5/28C22B15/00
Inventor J·西皮莱P·比约克伦德K·佩尔托涅米L·P·佩索宁
Owner METSO OUTOTEC (FINLAND) OY