High-temperature powder cooling device and cooling method
A cooling device and powder technology, applied in the field of high temperature powder cooling, can solve the problem of water vapor blocking the lower silo or pipeline, and achieve the effect of ensuring fluidity, continuous, stable and rapid cooling
Active Publication Date: 2014-09-10
湖南长拓高科冶金有限公司
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Problems solved by technology
[0007] The purpose of the present invention is to provide a high-temperature powder cooling device and cooling method to solve the existing technical problem that a large amount of water vapor is generated to block the lower hopper or pipeline during the water quenching cooling process of the existing high-temperature ore powder
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[0042] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways defined and covered by the claims.
[0043] refer to figure 2 and image 3 , the preferred embodiment of the present invention provides a high-temperature powder cooling device, including a powder feeding device 1, a cooling cavity 2 and a cooling medium injection device 3; the high-temperature powder falls into the cooling cavity 2 through the powder feeding device 1 In the cooling cavity 2, the high-temperature powder encounters more than two streams of cooling medium sprayed by the cooling medium spraying device 3 arranged at one end of the cooling cavity 2, and more than two streams of cooling medium injected by the cooling medium spraying device 3 The medium flow converges to form a "U"-shaped high-speed liquid column (cross section), which fully covers the discharge area of h...
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The invention discloses a high-temperature powder cooling device and a high-temperature powder cooling method. The cooling device comprises a powder blanking device, a cooling cavity and a cooling medium spraying device, wherein the high-temperature powder is dropped in the cooling cavity by the powder blanking device; the cooling medium is converted into high-temperature cooling medium flow by the cooling medium spraying device, so as to penetrate through the cooling cavity; meanwhile, the high-temperature powder dropped on the cooling medium flow in the cavity is quickly cooled and mixed together; when the cooling medium flow penetrates at a high speed, local vacuum is formed in the cooling cavity, so that gas cooling medium, which is continuously generated in the mixing process, and is continuously taken to the other end of the cooling cavity in a winding manner and taken out with the powder. According to the high-temperature powder cooling device and the high-temperature powder cooling method disclosed by the invention, the local vacuum is formed in the cooling cavity, so that not only can the cooling of the high-temperature powder be realized, but also the gas cooling medium and the powder can be taken out of the cooling cavity, and therefore, the high-temperature powder is continuously and stably cooled.
Description
technical field [0001] The invention relates to the field of high-temperature powder cooling, in particular to a cooling device and a cooling method for high-temperature magnetized roasted ore powder. Background technique [0002] After iron ore powder is roasted by flash magnetization reduction and becomes fine powdery high-temperature magnetite powder, the phase of high-temperature magnetite powder needs to be cooled rapidly to a stable state before the magnetic separation process can be carried out to realize the enrichment and concentration of iron components. The improvement of taste. The basic requirement for cooling is a non-oxidizing environment, because iron ore is easily oxidized in a high-temperature aerobic environment, which affects the effect of magnetic separation. [0003] The cooling medium can be either gaseous or liquid, but cooling in the gaseous state is costly for large-scale industrial applications. In specific practical applications, water is the pr...
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IPC IPC(8): C22B1/26
Inventor 刘建平李永恒黄加伍高泽斌
Owner 湖南长拓高科冶金有限公司