Equipment for preparing dry ice by utilizing cement kiln flue gas

Abstract

The invention provides equipment for preparing dry ice by using cement kiln flue gas, which is applied to the technical field of cement, and is characterized in that a decarburization water scrubber (4) of the equipment for preparing dry ice by using cement kiln flue gas is communicated with a flue gas supply pipeline (7) and an absorption tower (5), the absorption tower (5) is communicated with adesorption tower (6), and the desorption tower (6) is communicated with a desulfurization bed (8); wherein the desulfurization bed (8) is communicated with a drying bed (9), the drying bed (9) is communicated with an adsorption bed (10), the adsorption bed (10) is communicated with a carbon dioxide liquefaction component (11), the carbon dioxide liquefaction component (11) is communicated with afood-grade rectifying tower (13), and a food-grade carbon dioxide storage tank (14) of the food-grade rectifying tower (13) is communicated with a dry ice machine (15). The carbon dioxide emission reduction amount can be increased according to the equipment of the invention, dry ice preparation can be completed conveniently and efficiently, and the economic benefits of cement kiln flue gas CO2 capture and purification and dry ice project production lines are increased.

Description

technical field [0001] The invention belongs to the technical field of cement, and more specifically relates to a device for preparing dry ice by utilizing flue gas of a cement kiln. Background technique [0002] Currently on the market, dry ice is usually made by purchasing gas or liquid carbon dioxide, and then making dry ice at home, manually or fully automatically. Small, the cost of making dry ice is high. At the same time, the gaseous carbon dioxide produced in the dry ice production process is directly evacuated, resulting in waste of resources. Contents of the invention [0003] The technical problem to be solved by the present invention is: to provide a reliable performance, which can effectively increase the cement kiln flue gas treatment capacity, increase the carbon dioxide emission reduction, and at the same time facilitate and efficiently complete the dry ice preparation, and increase the CO2 of the cement kiln flue gas. 2 The equipment for producing dry ic...

AI Technical Summary

Problems solved by technology

[0002] Currently on the market, dry ice is usually made by purchasing gas or liquid carbon dioxide, and then making dry ice at home, manually or fully automatically. Small, the cost of making dry ice is high

At the same time, the gaseous carbon dioxide produced in the dry ice production process is directly evacuated, resulting in waste of resources

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