A coal gangue acidification treatment kiln

Abstract

The invention belongs to the technical field of coal gangue refining equipment, and specifically relates to a coal gangue acidification treatment kiln. The inner wall of the kiln is provided with a first crushing plate and a second crushing plate; the kiln body is provided with a drive cabin; The rotating shafts of the biaxial motor pass through the first opening respectively and are fixedly connected with the crushing wheel; the kiln body is provided with an extruding plate; A filter plate is provided below; a grinding tank is opened in the filter plate; grinding balls are arranged in the grinding tank; a third airbag is fixedly connected between the two push plates, and the upper and lower surfaces of the third airbag are completely fitted Corresponding to the surface of the push plate; the surface of the third air bag is evenly connected with four stirring rods; the inside of the push plate is provided with an aeration groove; the surface of the push plate is evenly provided with aeration holes, and the aeration holes are connected with the aeration The grooves are connected; the structure of the invention is simple, the gangue can be fully crushed, and the gangue can be stirred and mixed evenly, and the acidification rate is fast.

Description

technical field [0001] The invention belongs to the technical field of coal gangue refining equipment, in particular to a coal gangue acidification treatment kiln. Background technique [0002] Coal gangue is solid waste discharged during the coal mining process and coal washing process. It is a black-gray rock with low carbon content and harder than coal that is associated with coal seams during the coal formation process. In general, its main components are Al2O3, SiO2, etc., so coal gangue is a resource and energy that can be used. Coal gangue is mainly used to produce construction materials such as gangue cement, lightweight aggregate for concrete, and refractory bricks. In addition, it can also be used to recover coal, co-fire coal and gangue to generate electricity, and produce chemical products such as crystalline aluminum chloride and water glass. Extract precious and rare metals, also can be used as fertilizer. [0003] In the prior art, some technical schemes of ...

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Problems solved by technology

[0005] In order to make up for the deficiencies in the prior art and solve the problems of incomplete pulverization of coal gangue, reduction of acidification treatment efficiency and uneven mixing of coal gangue acidification, resulting in difficulty in acidification degree of coal gangue and reduction of acidification treatment efficiency of coal gangue, a method proposed by the present invention Coal gangue acidification treatment kiln

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