Method for pelletizing fine powder in petroleum cokes
A technology for petroleum coke and pelletizing, which is applied to the field of petroleum coke fine powder pelletizing, can solve the problems of low actual yield, waste of raw materials, etc., and achieve the effects of increasing actual yield, saving raw material petroleum coke, and improving enterprise efficiency.
Inactive Publication Date: 2010-03-24
SHENYANG ALUMINIUM MAGNESIUM INSTITUTE
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Problems solved by technology
During the calcination process, a large amount of fine coke powder is oxidized and burned at high temperature, resulting in a low yield and a large waste of raw materials
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[0020] The implementation process of the present invention will be described in detail below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited by the embodiments.
[0021] As shown in the figure, the method for forming petroleum coke fine powder into balls of the present invention includes the following steps: the grab crane 2 in the raw material warehouse grabs the raw petroleum coke 1 and sends it to the particle size classification equipment for classification, and the raw petroleum coke 1 after classification is classified. Petroleum coke 1 is processed, and after the treatment, it is sent to the second bucket elevator 13 by the third belt conveyor 12 to be transported to the pre-calcining silo 15, wherein the volatile content of raw petroleum coke is 6-12%, and the moisture content is 3-3%. 6%.
[0022] Grabbing and sending the raw petroleum coke to the particle size classification equipment for classification ...
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Abstract
The invention discloses a method for pelletizing fine powder in petroleum cokes, which is used in the carbon industry, in particular to a method for pelletizing fine powder in petroleum cokes with thepurposes of reducing the carbon burning loss and increasing the actual yield during petroleum coke calcinating. The method comprises the following steps: using a grab crane in a raw material warehouse to grab raw petroleum cokes to size grading equipment to be graded, then treating the graded raw petroleum cokes, conveying the raw petroleum cokes to a second bucket elevator by a third belt conveyor after treatment and finally conveying the raw petroleum cokes to a pre-calcinating bin. The process method of the invention is adopted to pretreat the raw petroleum cokes before calcinating and carry out pelletizing on the fine powder in the raw petroleum cokes. The oxidation burning loss of the raw petroleum cokes machined by the process is greatly reduced in the calcinating course, the actualyields of the calcinated products are increased, the raw petroleum cokes are saved and the benefits of the enterprises are increased.
Description
technical field [0001] The invention relates to a method for pelletizing petroleum coke fine powder used in the carbon industry, in particular to a method for pelletizing petroleum coke fine powder that reduces carbonaceous burning loss during petroleum coke calcination and improves yield. Background technique [0002] As the main raw material for the production of carbon electrodes for aluminum and electrodes for steelmaking, raw petroleum coke needs to be calcined at a high temperature of 1200-1400 °C. At present, limited by the coking process of petroleum coke, raw petroleum coke generally has a high content of fine powder, of which fine coke powder with a particle size of less than 1mm accounts for about 40-50%. During the calcination process, a large amount of fine coke powder is oxidized and burned at high temperature, resulting in a low yield rate and a large waste of raw materials. Contents of the invention [0003] In order to solve the above-mentioned technical ...
Claims
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IPC IPC(8): C01B31/02
Inventor 王敏崔银河梁和奎
Owner SHENYANG ALUMINIUM MAGNESIUM INSTITUTE