A hot air sintering device and sintering method
A sintering device and hot air technology, applied in lighting and heating equipment, furnace types, furnaces, etc., can solve the problems of reducing sintering speed, limiting the use of exhaust gas, reducing air volume, etc., and achieve the effect of increasing the amount of use
Active Publication Date: 2015-09-30
PANGANG GRP PANZHIHUA STEEL & VANADIUM
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Problems solved by technology
However, the disadvantage of hot air sintering is that the viscosity of hot air is higher than that of air at normal temperature. During hot air sintering, the resistance of the material layer increases, the air volume decreases, and the sintering speed decreases, resulting in a decrease in the output of sintered ore.
Because of this, hot air sintering is often only used for the length of the first 1 / 3 of the sintering machine, thus limiting the use of exhaust gas volume
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[0026] A hot air sintering device and a sintering method according to the present invention will be described in detail below in conjunction with specific embodiments. They may, however, be embodied in different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the example embodiments to those skilled in the art.
[0027] Hereinafter, exemplary embodiments according to the present invention will be described.
[0028] The disadvantage of hot air sintering is that the viscosity of hot air is higher than that of air at normal temperature. During hot air sintering, the resistance of the material layer increases, the air volume decreases, and the sintering speed is reduced, resulting in a decrease in the output of sintered ore. Because of this, hot air sintering is often only used for the length of the first 1 / 3 of the si...
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The invention provides a hot air sintering device and method. The hot air sintering device comprises a hot air pipe; a steam pipe is arranged inside a horizontal section of the hot air pipe; a spraying device is arranged on the steam pipe which is arranged inside the hot air pipe; the spraying device is used for mixing the steam sprayed through the spraying device with the hot air inside the hot air pipe to be sprayed on the surface of sintering materials. The invention also discloses a hot air sintering method. The hot air sintering method comprises performing sintering through the hot air sintering device. According to the hot air sintering device and method, the sintering speed is improved by a large margin and the productivity is improved; the strength and particle size indexes of sintering ore are improved; a sintering machine can use the hot air and the steam to perform sintering and the exhaust gas usage amount is improved.
Description
technical field [0001] The invention relates to a hot air sintering device and a sintering method, more specifically, the invention relates to a hot air sintering device and a sintering method which can greatly increase the sintering speed. Background technique [0002] Sintering is the process of heating powder or powder compact to a temperature lower than the melting point of its basic components, and then cooling to room temperature in a certain method and speed. As a result of sintering, bonding occurs between powder particles, the strength of the sintered body increases, and the aggregates of powder particles become aggregates of crystal grains, thereby obtaining products or materials with required physical and mechanical properties. [0003] At present, hot air sintering is widely used in powder ore sintering production. Hot air sintering is to continue to provide heat to the material layer with hot air after the sintering machine is ignited to supplement the lack of h...
Claims
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IPC IPC(8): F27B21/08C22B1/16
Inventor 胡洪天王睿
Owner PANGANG GRP PANZHIHUA STEEL & VANADIUM