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Separation method for carbon monoxide in smelting furnace gas

A carbon monoxide and separation method technology, applied in the field of smelting, can solve the problem of high cost of carbon monoxide gas, and achieve the effects of reducing friction loss, reducing temperature rise and reducing pollution

Inactive Publication Date: 2013-10-02
罗城仫佬族自治县科学技术局
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a method for separating carbon monoxide from smelting furnace gas, which can solve the problem of high cost of separating and recovering carbon monoxide gas from smelting furnace gas

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  • Separation method for carbon monoxide in smelting furnace gas
  • Separation method for carbon monoxide in smelting furnace gas
  • Separation method for carbon monoxide in smelting furnace gas

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Embodiment Construction

[0014] Below in conjunction with accompanying drawing and embodiment the present invention is further described:

[0015] The furnace gas discharged from the smelting furnace is cooled and dedusted. The cooling of the furnace gas is to pass the furnace gas through the raw material in the raw material preheater, and cool the furnace gas while preheating the ore before entering the furnace; After preheating, the cooled furnace gas is passed through the gas / water separator to remove moisture, and then the dust removal is carried out through the cyclone dust collector; after dust removal, the furnace gas is figure 1 The air inlet pipe 1 shown enters the gas compressor, which is pressed into the pressure swing adsorption device 3 to separate carbon monoxide from the furnace gas. The gas separation adopts the pressure swing adsorption process to concentrate and purify carbon monoxide, and the adsorption temperature is 20-55 °C, the adsorption pressure is 0.25-1.2MPa, and the specif...

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Abstract

The invention discloses a separation method for carbon monoxide in smelting furnace gas. The method comprises the following steps: cooling and dedusting furnace gas exhausted from a smelting furnace and then pressing the furnace gas with a compressor into a pressure swing adsorption device for furnace gas separation, wherein the process of pressure swing adsorption is used for furnace gas separation so as to realize concentration and purification of carbon monoxide, adsorption temperature is 20 to 55 DEG C, and adsorption pressure is 0.25 to 1.2 MPa. Equipment used in the separation method comprises the compressor and the pressure swing adsorption device; one end of a cylinder in the compressor near a crankshaft is provided with an air inlet and an air outlet, airways communicated with the air inlet and the air outlet are respectively provided with an inflowing air control valve and an outflowing air control valve, and the inflowing air control valve and the outflowing air control valve are both provided with rotation valve cores which are connected with the crankshaft through a mechanical transmission device. The method provided in the invention overcomes the problem of high cost in separation and recovery of carbon monoxide gas from smelting furnace gas in the prior art.

Description

technical field [0001] The invention relates to the technical field of smelting, in particular to a method for separating and recovering carbon monoxide gas in the exhaust gas of a smelting furnace. Background technique [0002] At present, the utilization rate of the heat and effective components in the furnace gas discharged from the smelting furnace is very low, especially the effective component carbon monoxide gas in the furnace gas, which is burned and discharged on the surface of the smelting furnace, and the unburned part is likely to cause air pollution. On-site operators were poisoned by the exhausted furnace gas. In order to effectively utilize the carbon monoxide gas in these furnace gases, these furnace gases must be compressed and separated. However, when the currently used gas compressor compresses the mixed furnace gas and then enters the pressure swing adsorption device to compress and separate the components in the gas, in the separated gas, in addition t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B31/18C01B32/40
Inventor 韦平忠谢宇军
Owner 罗城仫佬族自治县科学技术局
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