High-temperature mineral powder cooling device

Abstract

The invention relates to a high-temperature mineral powder cooling device belonging to the technical field of ferrous metallurgy. The high-temperature mineral powder cooling device comprises a volute body and a cooling center cylinder, wherein the volute body is arranged at the upper end of the cooling center cylinder, the volute body comprises a volute hole and a center shell, the center shell of the volute body is of a cylindrical structure with an opening in the lower end, a feeding pipe is arranged at the center of the top end of the volute body, the volute hole of the volute body is an air outlet, the cooling center cylinder is of a cylindrical structure with a through hole in the center, a cooling spiral water pipe is arranged in the through hole in the center of the cooling center cylinder, the discharging end of the feeding pipe is positioned above the cooling spiral water pipe, the upper end of the cooling spiral water pipe is communicated with a cooling water outlet by the cylinder wall of the cooling center cylinder, the lower end of the cooling spiral water pipe is communicated with a cooling water inlet through the cylinder wall of the cooling center cylinder, an air inlet is formed in the cylinder wall of the lower end of the cooling center cylinder, the opening in the lower end of the cooling center cylinder is communicated with a large opening of a conical cylinder positioned below the cooling center cylinder, and a small hole of the conical cylinder is a discharging hole.

Description

technical field [0001] The invention belongs to the technical field of iron and steel metallurgy, in particular to a high-temperature ore powder cooling device. Background technique [0002] At present, for the refractory iron ore in my country, the high-temperature calcined sand formed after the magnetization reduction roasting is directly discharged into the circulating cooling water for cooling. This method causes part of the waste heat that cannot be recycled, and in the cooling process A part of the circulating cooling water will be wasted. [0003] Under normal circumstances, for every ton of refractory iron ore processed, there will be heat equivalent to 15-25 kg of standard coal that cannot be recycled, and about 30-70 kg of circulating cooling will be lost during the process. water. Contents of the invention [0004] Aiming at the problems existing in the prior art, the present invention provides a high-temperature mineral powder cooling device which can recycle ...

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Problems solved by technology

[0002] At present, for the refractory iron ore in my country, the high-temperature calcined sand formed after the magnetization reduction roasting is directly discharged into the circulating cooling water for cooling. This method causes part of the waste heat that cannot be recycled, and in the cooling process A part of circulating cooling water will be wasted in

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