Coke reactivity and post-reaction intensity detection sample preparation apparatus and sample preparation method

A coke and coking technology, which is applied in the field of metallurgical coke physical and chemical performance testing, can solve the problems of long time-consuming, high coke hardness, complicated preparation process, etc., and achieve the effects of improving quality, consistent physical and chemical properties, and overcoming uneven particle size

Inactive Publication Date: 2014-01-01
辽宁同辉科技发展有限公司
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Problems solved by technology

However, the coke reactivity and post-reaction strength test samples are strictly required. The sample preparation is based on the coked coke block as the raw material. The shape of the sample is irregular, and the specific surface area of ​​the sample prepared in each batch is very different, resulting in large deviations in the experimental results and poor simulation effects, making it difficult to provide real and accurate test data for guiding coking production

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  • Coke reactivity and post-reaction intensity detection sample preparation apparatus and sample preparation method

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Embodiment Construction

[0015] The specific embodiment of the present invention is further described below in conjunction with accompanying drawing:

[0016] A method for preparing a coke sample is characterized in that it is carried out in the order of first pelletizing and then coking, and the specific operation steps are as follows:

[0017] 1) Put the weighed coal powder into the mold of the coke sample forming device, press the coal powder into a ball with a pressure of 20N-30N under normal temperature conditions, and get a diameter of Φ25 after demoulding. –0.1 mm, volume 8.18cm 3 , the density is 1.1g / cm 3 ~1.2g / cm 3 coal powder balls;

[0018] 2) The pulverized coal balls are placed in the coke oven of the smelting experiment. Under the condition of isolating the air and the temperature is 950 ° C ~ 1050 ° C, after 8 ~ 9 hours for high temperature dry distillation, the formed body has a diameter of Φ25 –0.1 The regular coke balls of mm are used as test samples for coke reactivity and post...

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Abstract

The invention relates to a coke reactivity and post-reaction intensity detection sample preparation apparatus and a sample preparation method. The preparation method which adopts a pelletizing-coking sequence comprises the following steps: weighing a well-burdened and well-mixed coal dust raw material by using an electronic scale, filling to a ball pressing die, pressing to form a briquette, putting the prepared coke briquette in an experiment coke oven, carrying out a coking experiment, and coking the coal briquette after the coking experiment is ended to form a coke briquette having consistent physicochemical performances with the experiment coke oven coke and having uniform dimension. Compared with the prior art, the preparation method has the advantages of changing of a traditional coke reactivity and post-reaction intensity detection sample preparation technology, avoiding of a tedious sample preparation technology using a crusher, a screener, a granulator and a sample milling machine to process an original coke block, overcoming of the non-uniform granularity of an original sample, time and labor saving, and improvement of the quality of the prepared sample.

Description

technical field [0001] The invention relates to the field of detection of physical and chemical properties of metallurgical coke, in particular to equipment and a preparation method for detection samples of coke reactivity and post-reaction strength. Background technique [0002] The small-scale test coke oven is based on the principle of similarity. In the coke production carbonization chamber coke cake, a representative rectangular unit is taken as the research object, and a series of parameters in the coking production process are simulated to conduct coking mechanism, coke physical and chemical properties. , and other related indicators, from which to explore the test rules, summarize the optimal raw material ratio, and guide on-site production with high-quality, low-consumption raw material formula. However, the coke reactivity and post-reaction strength test samples are strictly required. The sample preparation is based on the coked coke block as the raw material. The...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/28
Inventor 王辉杨迪光
Owner 辽宁同辉科技发展有限公司
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