Preparation and filling system for mining regenerated carbon sequestration type paste

Abstract

A preparation and filling system for mining regenerated carbon sequestration type paste adopts a mode of adding waste concrete and industrial waste gas into a filling paste preparation and filling process, firstly, the high-temperature industrial waste gas is subjected to dust removal treatment, then, refrigeration equipment is adopted for cooling the industrial waste gas, and part of carbonized industrial waste gas is collected; the carbon dioxide is mixed with the dedusted industrial waste gas and repeatedly and circularly enters the paste stirring chamber, the aggregate screening device and the crushing device, so that the content of carbon dioxide in the industrial waste gas discharged into the atmosphere can be reduced to the maximum extent. According to the method, carbon dioxide in industrial waste gas can be mineralized and fixed to the maximum extent with the highest efficiency of the paste, the strength of the paste can be improved, meanwhile, waste concrete which destroys the land and the environment is fully utilized, the raw material source of the filling paste is increased, the filling cost is reduced, a large amount of carbon dioxide in the industrial waste gas can be fixed, and the economic benefit is increased. And greenhouse gas emission is reduced.

Description

technical field [0001] The invention relates to a preparation and filling system of a mining paste, in particular to a preparation and filling system of a mine regeneration carbon-fixing paste, belonging to the technical field of carbon-fixing paste preparation and filling. Background technique [0002] Paste filling mining technology can not only release the "three-down" compressed coal well, improve the recovery rate of coal resources, but also fundamentally solve the problems of large-scale surface subsidence and damage to ground buildings, water resources, and land resources Therefore, it is particularly urgent to vigorously promote the development of paste filling technology. Filling material is the core of the entire filling system. According to the survey, many mines do not have enough coal gangue as filling material. Therefore, it is very important to expand the scope of material sources to promote the development of filling technology. It is speculated that in 2020...

AI Technical Summary

Problems solved by technology

In addition, existing studies have shown that concrete has the ability to absorb carbon dioxide throughout its life cycle. With the aggravation of environmental pollution, more and more attention has been paid to the greenhouse effect and greenhouse gas emissions. The flue gas of large industrial boilers and power plants contains A large amount of carbon dioxide gas, if discharged into the air in large quantities, will have a great impact on the environment

Images