Coal gangue ecological resource comprehensive utilization equipment and comprehensive utilization method thereof

Abstract

The invention belongs to the technical field of solid waste comprehensive utilization, aims at the problem of serious environmental pollution caused by a large amount of disorderly stacking of coal gangue at present, and at the same time, based on the property that coal gangue can spontaneously combust and release a large amount of heat, it provides a comprehensive utilization device for ecological resource utilization of coal gangue and Its comprehensive utilization method, the equipment includes a coal gangue reactor system, an air supply system connected to the coal gangue reactor system, a temperature control system, a liquid working medium circulation system, a working medium circulation power generation system and a waste gas collection system; The coal gangue is sorted and piled into the coal gangue reaction box for processing, and the waste gas generated by the spontaneous combustion of the coal gangue is collected to generate industrial raw materials such as sulfuric acid and nitric acid, avoiding waste gas pollution. The solid product after spontaneous combustion of coal gangue is mixed with urban sludge and leaves to form green plant fertilizer, realizing the ecological utilization of coal gangue. The invention realizes the ecological resource utilization of coal gangue, utilizes the coal gangue as a resource and avoids the pollution of the coal gangue to the environment.

Description

technical field [0001] The invention belongs to the technical field of comprehensive utilization of solid waste, and in particular relates to comprehensive utilization equipment for coal gangue ecological resource utilization and a comprehensive utilization method thereof. Background technique [0002] Coal gangue is a kind of sedimentary rock with lower carbon content and harder than coal that is sorted out during the coal mining process, accounting for about 10%-20% of the total coal output. With the mining of coal, coal gangue has been formed in my country at present. There are more than 2,600 mountains, with a cumulative storage capacity of 4.5 billion tons, covering an area of ​​1.3×10 4 hectares, and the stockpile of coal gangue continues to increase at a relatively rapid rate. The coal gangue stacked in the open air not only occupies a large amount of cultivated land, but also because the coal gangue contains a large amount of residual coal and sulfide and other miner...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problem of serious environmental pollution caused by a large amount of disorderly stacking of coal gangue at present, and at the same time based on the property that coal gangue can spontaneously combust and release a large amount of heat, the present invention provides a comprehensive utilization device for ecological resource utilization of coal gangue and its comprehensive utilization method

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