Rotary hearth furnace for treating lead-zinc smelting slag
A technology of rotary hearth furnace and smelting slag, which is applied in the direction of furnace, furnace type, process efficiency improvement, etc. It can solve the problems of less heat received, more heat received, and different degrees of chemical reaction affecting product quality, so as to improve reaction speed, The effect of improving product quality
Inactive Publication Date: 2021-06-18
李兴发
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[0003] In the process of processing the lead-zinc smelting slag in the existing rotary hearth furnace, since the smelting slag will have a certain thickness after being spread on the hearth, this will cause the upper layer of the smelting slag to receive more heat per unit time, and the lower layer The smelting slag is covered by the upper layer of smelting slag and receives less heat, so that the heating of the smelting slag is uneven, and the degree of chemical reaction seriously affects the quality of the product, and even produces a large amount of waste products
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[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0024] see Figure 1-5 , the present invention provides a technical solution: a rotary hearth furnace for processing lead-zinc smelting slag, comprising a rotary hearth furnace body 1, the inner wall of the rotary hearth furnace body 1 is respectively provided with a flame nozzle 14, a baffle plate 15 and a flow guide The number of plates 24 and flame nozzles 14 is several, and several flame nozzles 14 are equidistantly arranged on the inner wall of the rotary...
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The invention discloses a rotary hearth furnace for treating lead-zinc smelting slag. The furnace comprises a rotary hearth furnace body, wherein four support rods are fixedly mounted on the upper surface of the rotary hearth furnace body, the four support rods are arranged on the upper surface of the rotary hearth furnace body in a rectangular array, a smelting slag treatment box is fixedly installed at the ends, away from the rotary hearth furnace body, of the four support rods, a first fixing box is fixedly installed on the right side face of the smelting slag treatment box, and a rotating motor is fixedly installed on the inner wall of the first fixing box. According to the rotary hearth furnace for treating the lead-zinc smelting slag, multiple material baffles are arranged, and the multiple material baffles are arranged on the inner wall of the rotary hearth furnace body one by one in a layered and stepped mode, so that in the rotating process of a furnace bottom discharging disc, the smelting slag on the surface of the furnace bottom discharging disc can be blocked in a layered mode through the multiple material baffles with different heights, and the smelting slag on the furnace bottom discharging disc can be uniformly heated, so that the product quality after reaction is greatly improved.
Description
technical field [0001] The invention relates to the technical field of rotary hearth furnaces, in particular to a rotary hearth furnace for processing lead-zinc smelting slag. Background technique [0002] Rotary hearth furnace direct reduction technology is iron ore powder (or laterite nickel ore, vanadium-titanium magnetite, sulfuric acid slag or metallurgical dust, dust removal ash, steelmaking sludge, etc.) The pellets are fed into a rotary hearth furnace with an annular hearth and a rotatable hearth. At a hearth temperature of about 1350 degrees Celsius, the iron ore is reduced by carbon during the process of rotating with the hearth for one revolution. [0003] In the process of processing the lead-zinc smelting slag in the existing rotary hearth furnace, since the smelting slag will have a certain thickness after being spread on the hearth, this will cause the upper layer of the smelting slag to receive more heat per unit time, and the lower layer The smelting slag i...
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Login to View More IPC IPC(8): C22B7/04C22B13/02C22B19/30C22B1/00F27B13/02
CPCC22B1/005C22B7/001C22B7/04C22B13/025C22B19/30F27B13/02Y02P10/20
Inventor 李兴发
Owner 李兴发