Stirring and curing integrated device for sealing and storing carbon dioxide by using cement-based material

Abstract

The invention relates to a stirring and curing integrated device for sealing carbon dioxide by using a cement-based material, the stirring and curing integrated device comprises a stirring mechanism and a curing device, the stirring mechanism comprises a cuboid shell, a display screen, a motor, a control system, a telescopic three-section stirring rod, a stirring head, a transmission gear, a lead screw motor and a lead screw; the maintenance device comprises a fixing disc, a fixing buckle and a maintenance barrel. And the fixing disc is fixed above the maintenance barrel through fixing buckles installed on the left side and the right side, so that the airtightness of the maintenance barrel is good. Carbon dioxide participates in a mineralization reaction in the whole process from mixing, stirring to curing, so that the carbon dioxide storage and absorption efficiency is maximized, and the slurry hydration degree is highest; the telescopic three-section stirring rod is arranged, so that the slurry can be fully stirred, the telescopic three-section stirring rod can be contracted when stirring is finished, maintenance is not affected, meanwhile, the telescopic three-section stirring rod is not closed when stirring is finished, slurry remaining on the stirring head is fully thrown out under the action of centrifugal force, and the stirring head is kept clean and free of residues.

Description

technical field [0001] The invention belongs to the field of preparation and maintenance of functional materials in mines, and in particular relates to a mixing and maintenance integrated device for sealing carbon dioxide by using cement-based materials and a method for using the same. Background technique [0002] At present, more than 35 billion tons of carbon dioxide gas is emitted into the atmosphere every year in the world, and the global climate change and many environmental problems caused by the greenhouse effect cannot be ignored. In order to mitigate climate warming, controlling carbon dioxide emissions has become the key, and carbon dioxide capture, storage and utilization technology (CCUS) will play a key role. The absorption and fixation / utilization process of carbon dioxide is to react carbon dioxide with alkali metal components in minerals, and the Gibbs energy of the thermal reaction equation is less than zero, which can realize the spontaneous reaction. The ...

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Problems solved by technology

[0003] The current conventional method of using cement-based materials to store carbon dioxide is to mix the cement-based materials into molds and put them into a carbon dioxide gas curing box. At this time, the surface of the curing test block has begun to close, and carbon dioxide can only react on the surface of the curing test block. Permeate or cannot penetrate into the interior of the curing test block, so it has no obvious effect on the internal structure of the test block, ignoring the influence of carbon dioxide participation in the preparation process

In the prior art, a stirring device is also used to stir and seal materials for carbon dioxide sequestration, but the stirring performance of the stirring device is average, the curing performance is not good, and the amount of sealing in the entire stirring and curing process is insufficient

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