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Iron oxidation product separation and reduction and reduction product storage and transportation system and method

A technology of iron oxidation and production, which is applied in the fields of separation of iron oxidation products, storage and transportation of reduction products, and reduction. It can solve problems such as oxidation and difficulty in iron powder, and achieve the goal of reducing economic losses, reducing economic costs, and improving energy utilization. Effect

Pending Publication Date: 2021-07-23
XI AN JIAOTONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, micron-level iron powder is difficult to capture and is easily oxidized in the air, so a storage and transportation method for reduced iron powder is proposed

Method used

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  • Iron oxidation product separation and reduction and reduction product storage and transportation system and method

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Embodiment Construction

[0023] The structure and working principle of the present invention will be further described below in conjunction with the accompanying drawings.

[0024] Such as figure 1 As shown, the present invention is a system for separating, reducing, and storing and transporting iron oxidation products. The system includes a left-right connected primary separator 1 and a secondary separator 2, wherein the primary separator 1 is used for separating and removing In addition to micron α-Fe 2 o 3 Particles, the secondary separator 2 is used to separate and remove nano-scale α-Fe 2 o 3 and γ-Fe 2 o 3Polymer particles; the first-stage separator 1 is provided with a soot blowing device 4 and a filter bag 5 from top to bottom, and the outlet of the bottom of the first-stage separator 1 is provided with a soot discharge valve 9, and the lower part of the ash discharge valve 9 is provided with micron particle powder Bin 6; a fourth valve 19 is provided on the pipe connecting the micron pa...

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Abstract

The invention discloses an iron oxidation product separation and reduction and reduction product storage and transportation system and method. The system comprises a primary separator, a secondary separator and a storage and transportation system which are connected left and right. Micron-sized particles are removed from dust-containing flue gas with micron-sized alpha-Fe2O3 particles and nano-sized alpha-Fe2O3 and gamma-Fe2O3 polymer particles and generated after combustion of metal iron by virtue of the primary separator firstly, and then the nano-sized particles are removed from the dust-containing flue gas by virtue of the secondary separator; and after the collected micron-sized particles are conveyed to a powder reduction furnace for reduction by inert gas, the inert gas carries iron powder to enter a cooling section to be cooled to the room temperature, then the iron powder is adsorbed to the surface of a magnet pipe for storage when the inert gas passes through the storage and transportation system, and the inert gas is circulated to a powder bin. When the iron powder is transported, the inert gas enters a transporting system, a heating system and a sound wave vibration system are started at the same time, the magnet pipe is demagnetized through heating, the iron powder is conveyed along with the inert gas more easily through the sound wave vibration system, and the iron powder is effectively prevented from being oxidized in the transporting process.

Description

technical field [0001] The invention relates to the fields of metallic iron combustion, gas-solid separation, clean energy utilization, etc., and specifically relates to a system and method for separation, reduction, and storage and transportation of iron oxidation products. Background technique [0002] Energy is essential to human society, providing the basis for all economic activity and wealth creation. However, the burning of fossil hydrocarbon fuels produces carbon dioxide emissions, which contribute to climate change. At the same time, in order to slow down global climate change, we must achieve zero-carbon emissions in energy and transportation systems, and transition to a low-carbon or zero-carbon society. [0003] Metallic iron fuel is a clean energy that meets this requirement, and it can be used in combination with hydrogen energy to achieve zero carbon emissions. Combustion of metallic iron produces metal oxides, including micron-sized α-Fe 2 o 3 Particulate...

Claims

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Application Information

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IPC IPC(8): B22F9/22
CPCB22F9/22
Inventor 王云刚陈潇赵钦新梁志远邵怀爽
Owner XI AN JIAOTONG UNIV
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