Coal gangue acidification reaction kiln
A technology of reaction kiln and coal gangue, which is applied in the field of coal gangue acidification reaction kiln, can solve the problems of limited production efficiency, unfavorable industrialization and scale, and low dissolution rate of oxides, and achieves reduced corrosion, ingenious structure, and convenient The effect of mass production
Active Publication Date: 2017-07-28
贵州省盘州市红腾开发投资有限公司
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Problems solved by technology
[0003] In the comprehensive utilization process of existing coal gangue, especially in the acidification reaction, limited by the existing equipment, the neutralized slag of coal gangue can only react with a low concentration of sulfuric acid solution, so that the products such as aluminum oxide and titanium dioxide are effective. The dissolution rate of oxides is low, which limits the production efficiency and is not conducive to industrialization and scale
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[0016] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0017] combine figure 1 and figure 2 , the coal gangue acidification reaction kiln of the present invention comprises an acidification reaction kiln 1, and the top of the acidification reaction kiln 1 is provided with a granular material inlet 3 and an acid mist outlet 17, and the acid mist outlet 17 passes through the connecting pipe 4, the induced draft fan 7 and the dehumidification pipe 5 Connected, a valve 6 is installed in the connecting pipe 4 to control the opening and closing of the connecting pipe 4; an acid spraying port 2 is installed in the middle and upper part of the chamber of the acidification reaction kiln 1, and a turning reaction port is installed below the acid spraying port 2. device, the overturning reaction device includes a cylinder 18, ...
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The invention discloses a coal gangue acidification reaction kiln, which comprises an acidification reaction kiln, a pellet inlet and an acid mist outlet are arranged at the top of the acidification reaction kiln, and an acid spray port is arranged at the middle and upper part of the acidification reaction kiln cavity. A turning reaction device is provided below the acid outlet, and the acidification reaction kiln cavity located below the turning reaction device is connected with the hot air supply device through the heating port, and a crushing device is arranged above the discharge port at the bottom of the acidification reaction kiln. Compared with the prior art, the present invention arranges an overturning reaction device in the cavity of the acidification reaction kiln, during the acidification reaction, the neutralized slag entering from the pellet inlet falls onto the turnover plate, and an acid spray port is set above the overturning reaction device, which can The atomized sulfuric acid is sprayed quantitatively, so the reaction can be carried out by weighing the neutralized slag, and precisely controlling the sulfuric acid sprayed from the acid spray port, without wasting raw materials, and because there are multiple holes on the flap, the reaction can be fully and completely , and then improve the dissolution rate of oxides such as aluminum oxide and titanium dioxide.
Description
technical field [0001] The invention relates to a coal gangue acidification reaction kiln, which belongs to the technical field of coal gangue refining equipment. 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 component is Al 2 o 3 , SiO 2 etc., so coal gangue is a resource and energy that can be utilized. 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 comprehensive utilization pro...
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IPC IPC(8): B09B3/00B09B5/00
Inventor 夏举佩何衍江李力唐雷师垒垒
Owner 贵州省盘州市红腾开发投资有限公司