Intelligent coal gangue activation device

Abstract

The invention discloses an intelligent coal gangue activation device which comprises a box body, an automatic locking device and a controller. A pressure safety valve, a micro air compressor and a microwave generator are arranged on the box body, a microwave uniform distribution and diffusion pipe is arranged in the box body, and the micro air compressor is connected with the microwave uniform distribution and diffusion pipe. The upper side and the lower side of the microwave uniform distribution and diffusion pipe are provided with interval hollowed-out protection plates correspondingly, and the microwave uniform distribution and diffusion pipe and the interval hollowed-out protection plates are parallel to the bottom face of the box body. The microwave generator is connected with spiral wave guide tubes oppositely arranged on two sides in the box body, and is used for forming a rotary microwave field. The automatic locking device comprises an upper gangue gate, a lower gangue gate and a hydraulic oil cylinder, and the upper gangue gate and the lower gangue gate form a hinge connection mechanism with the box body through the hydraulic oil cylinder. The micro air compressor, the microwave generator and the automatic locking device are all connected with the controller. The device can achieve clean, safe and large-scale industrial application.

Description

technical field [0001] The invention relates to the technical field of coal gangue treatment, and relates to an intelligent activation device for coal gangue. Background technique [0002] Coal gangue is a solid waste produced during the coal mining process, with an annual output of about 600-700 million tons. During the accumulation and storage process, it occupies a large amount of land and is prone to spontaneous combustion, causing serious harm to the environment. Ten departments including the National Development and Reform Commission issued the "Management Measures for Comprehensive Utilization of Coal Gangue (2014 Revised Edition)" in the form of a joint order, prohibiting new coal mines and coal preparation plants from building permanent coal gangue storage yards. In order to completely solve the resource utilization of coal gangue, it is urgent to solve the problem of coal gangue activation. [0003] At present, there are three types of kilns for coal gangue activa...

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Problems solved by technology

[0004] The first is to activate by spontaneous combustion. The disadvantage of this method is that the smoke and dust generated when the gangue is burned pollutes the environment, and the carbon and organic matter in the gangue cannot be fully burned, which will affect the activation effect of the gangue and fail to reach the expected coal. gangue activation effect

[0005] The second is to use lime kiln for activation. The disadvantages are that the temperature cannot be precisely controlled, the activation effect of coal gangue is unstable, the cost of furnace body and auxiliary buildings is high, serious smoke pollution is generated when coal gangue is burned, the physical exertion of workers is large, and the working environment is poor.

[0006] The third is to use coal gangue activation kiln activation. The disadvantages of coal gangue activation kiln are as follows: ①The furnace bar is easy to deform due to high temperature environment, and the wear and tear consumption is large during work, which increases the maintenance time and increases the coal gangue ②There is no water quenching process, which affects the activation effect; ③The overall system lacks intelligent control, the activation efficiency of coal gangue is low, and the work is labor-intensive; ④Due to the existence of smokestacks, there is no desulfurization, denitrification and dust removal system, and the working environment is poor

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