阅读说明：本技术 一种利用工业焦炉进行配煤炼焦实验的方法 (Method for carrying out coal blending and coking experiment by using industrial coke oven ) 是由 张树友 李峰 王军平 任玉琴 于 2021-09-16 设计创作，主要内容包括：本发明涉及一种利用工业焦炉进行配煤炼焦实验的方法,包括如下步骤：各煤种按照实验配煤比进行配煤,配合煤送入焦炉煤塔某一特定储煤仓单独存放；将实验配合煤煤料装入某一个或多个特定焦炉炭化室进行炼焦,其他焦炉炭化室正常生产；焦炭成熟后将焦炭从特定焦炉炭化室推出,进行熄焦,熄焦后焦炭放置在单独凉焦台进行凉焦,然后从凉焦台人工取样进行化验检测,焦炭质量指标若不符合预期,再次调整配煤比,重新进行配煤炼焦实验,重复上述步骤,直至符合预期后方可推广至全炉工业生产。本发明只需调整工艺操作方法,实验过程中,其他焦炉正常生产,使得实验工况条件与工业实际生产基本一致,有效的避免了工况条件差异对焦炭指标的影响。(The invention relates to a method for carrying out a coal blending and coking experiment by using an industrial coke oven, which comprises the following steps: blending various coals according to an experimental coal blending ratio, and feeding the blended coals into a certain specific coal storage bin of a coke oven coal tower for independent storage; loading the experimental blended coal into one or more specific coke oven carbonization chambers for coking, and enabling other coke oven carbonization chambers to normally produce; pushing the coke out of a specific coke oven carbonization chamber after the coke is mature, quenching the coke, placing the quenched coke on a separate coke cooling table for coke cooling, manually sampling from the coke cooling table for assay detection, adjusting the coal blending ratio again if the coke quality index does not meet expectations, re-performing coal blending and coking experiments, and repeating the steps until the coke meets the expectations and then can be popularized to the whole-oven industrial production. The invention only needs to adjust the process operation method, and other coke ovens are normally produced in the experimental process, so that the experimental working condition is basically consistent with the industrial actual production, and the influence of the difference of the working condition on the coke index is effectively avoided.)

1. A method for carrying out a coal blending and coking experiment by using an industrial coke oven is characterized by comprising the following steps:

s1, the original coal blending system is not changed, the experimental coal blending ratio is executed, the coal of gas coal, fat coal, coking coal and lean coal is blended through the electronic coal blending system according to the experimental coal blending ratio, and the blended coal is sent to a specific coal storage bin of the coke oven coal tower through a belt conveyor to be stored independently;

s2, taking coal from a specific coal storage bin through a coal charging car, charging experimental blending coal into one or more specific coke oven carbonization chambers for coking, and normally producing in other coke oven carbonization chambers;

s3, pushing the coke out of a specific coke oven carbonization chamber through a coke pusher after the coke is mature, quenching the coke, placing the coke on a separate coke cooling table for cooling the coke after quenching the coke for not less than 20min, manually sampling from the coke cooling table for testing and detecting, analyzing the test result of the coke, adjusting the coal blending ratio again if the quality index of the coke does not meet the expectation, carrying out the coal blending and coking experiment again, and repeating the steps until the quality index meets the expectation and the coke can be popularized to the whole-oven industrial production.

2. The method for performing coal blending and coking experiments by using an industrial coke oven as claimed in claim 1, wherein in the step S2, the coking time of the experimental blended coal in the coking chamber of the specific coke oven is within the coking time range of other normally produced coking; standard temperature of coke oven: the furnace temperature of the machine side is 1260 ℃, and the furnace temperature of the coke side is 1300 ℃; the temperature of the coke oven head is not lower than 1100 ℃.

3. The method of claim 1, wherein in step S3, the industrial water used for quenching coke is the same as that used in normal industrial production.

Technical Field

The invention belongs to the technical field of coking, and particularly relates to a method for carrying out a coal blending coking experiment by using an industrial coke oven.

Background

In the coke production process, because the coal blending scheme needs to be frequently adjusted for adjusting production, quality, cost and the like, how to accurately predict coke quality indexes after the coal blending scheme is adjusted is a problem which is a key concern of coal blending and coking practitioners, and two methods are commonly used at present:

the method comprises the following steps: coke index prediction is carried out according to single coal and coal blending laboratory indexes (such as industrial analysis, colloid layer thickness, caking index, Gieseler fluidity, ash component and the like) in combination with a quality prediction data model and coal blending experience.

The second method comprises the following steps: on the basis of the method I, a small coke oven experiment is carried out before industrial production, and the small coke oven is put into industrial production after the experimental result of the small coke oven meets the preset condition.

Therefore, how to simulate the actual industrial production working conditions to the maximum extent, accurately predict the coke indexes, avoid the huge cost risk of direct production after changing the coal blending scheme is the problem to be solved by coal blending and coking personnel.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a method for carrying out a coal blending and coking experiment by using an industrial coke oven, which utilizes the characteristic that coal is stored in bins of a coal tower of the coke oven under the condition of not changing the existing production process, loads experimental blended coal into a specific coal bin through the existing equipment and facility and adjusts the process operation method, carries out independent coking through a specific oven hole, realizes the coal blending and coking experiment by using the industrial coke oven, has the experimental working condition completely consistent with the actual production of the industrial coke oven, has various data obtained by the coal blending and coking experiment of the industrial coke oven basically the same as various data obtained by the industrial production, is more accurate and stable than the experimental result of a small coke oven, and can more accurately and effectively guide the industrial production of the coke.

The invention is realized in such a way that a method for carrying out a coal blending and coking experiment by using an industrial coke oven comprises the following steps:

s1, the original coal blending system is not changed, the experimental coal blending ratio is executed, the coal of gas coal, fat coal, coking coal and lean coal is blended through the electronic coal blending system according to the experimental coal blending ratio, and the blended coal is sent to a specific coal storage bin of the coke oven coal tower through a belt conveyor to be stored independently;

s2, taking coal from a specific coal storage bin through a coal charging car, charging experimental blending coal into one or more specific coke oven carbonization chambers for coking, and normally producing in other coke oven carbonization chambers;

s3, pushing the coke out of a specific coke oven carbonization chamber through a coke pusher after the coke is mature, quenching the coke, placing the coke on a separate coke cooling table for cooling the coke after quenching the coke for not less than 20min, manually sampling from the coke cooling table for testing and detecting, analyzing the test result of the coke, adjusting the coal blending ratio again if the quality index of the coke does not meet the expectation, carrying out the coal blending and coking experiment again, and repeating the steps until the quality index meets the expectation and the coke can be popularized to the whole-oven industrial production.

In the above technical solution, preferably, in step S2, the coking time of the experimental blending coal in the specific coke oven coking chamber is within the coking time range of other normally produced coking, and the standard temperature of the coke oven is: the temperature of the machine side furnace is 1260 ℃, the temperature of the coke side furnace is 1300 ℃, and the temperature of the coke oven head is not lower than 1100 ℃.

In the above technical solution, preferably, in the step S3, in quenching, industrial water identical to that used in normal industrial production is uniformly used for quenching, so as to avoid influence of a quenching water quality difference on a coke index.

Compared with the prior art, the invention has the advantages and positive effects that:

the method of the invention does not need to add new process equipment, only needs to adjust the process operation method, and has simple process and easy realization; in the experimental process, other coke ovens are normally produced, so that the experimental working condition is basically consistent with the industrial actual production, and the influence of the difference of the working condition on the coke index is effectively avoided; the influence on normal production of other coking is small; the experimental result is more accurate and stable than that of a small coke oven experiment.

Drawings

FIG. 1 is a flow chart of a coal blending and coking experiment using an industrial coke oven according to an embodiment of the present invention.

Detailed Description

In order to further understand the contents, features and effects of the present invention, the following embodiments are illustrated and described in detail with reference to the accompanying drawings:

examples

According to production needs, after the coal blending scheme is adjusted, a coal blending coking experiment needs to be carried out.

Referring to fig. 1, an embodiment of the present invention provides a method for performing a coal blending and coking experiment by using an industrial coke oven, including the following steps:

s1, the original coal blending system is not changed, the experimental coal blending ratio is executed, the coal of gas coal, fat coal, coking coal and lean coal is blended through the electronic coal blending system according to the experimental coal blending ratio, and the blended coal is sent to a specific coal storage bin (such as a selected coal tower 3# bin) of the coke oven coal tower through a belt conveyor to be stored independently;

s2, taking coal (coal taking amount is about 32 tons) from a specific coal storage bin through a coal charging car, charging experimental matched coal into one or more specific coke oven carbonization chambers (coke oven coke pushing sequence is 5-2 sequence, and the same sign number is selected when coal is charged, so that coal charging is convenient, for example, a 3# carbonization chamber and an 8# carbonization chamber are selected) for coking, wherein the coking time is within other normally produced coking time ranges, for example, the coking time is 23h, and the standard temperature of the coke oven is as follows: the temperature of the machine side furnace is 1260 ℃, the temperature of the coke side furnace is 1300 ℃, and the temperature of the coke oven head is not lower than 1100 ℃. Other coke oven carbonization chambers produce normally;

s3, pushing the coke out of a specific coke oven carbonization chamber through a coke pusher after the coke is mature, and then quenching the coke, wherein industrial water which is the same as that in normal industrial production is uniformly used for quenching the coke during quenching, so that the influence of the quenching water quality difference on coke indexes is avoided. And (3) placing the coke after quenching on a separate coke cooling table for coke cooling (not paying attention to mixing with the normally produced coke), wherein the coke cooling time is not less than 20min, then manually sampling from the coke cooling table for assay detection, analyzing the assay result of the coke, if the coke quality index does not meet the expectation, adjusting the coal blending ratio again, carrying out the coal blending and coking experiment again, and repeating the steps until the expected quality index is met, so that the coke can be popularized to the whole-furnace industrial production.

In conclusion, the method of the invention does not need to add new process equipment, only needs to adjust the process operation method, and has simple process and easy realization; in the experimental process, other coke ovens are normally produced, so that the experimental working condition is basically consistent with the industrial actual production, and the influence of the difference of the working condition on the coke index is effectively avoided; the influence on normal production of other coking is small; the experimental result is more accurate and stable than that of a small coke oven experiment.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: it is to be understood that modifications may be made to the technical solutions described in the foregoing embodiments, or some or all of the technical features may be equivalently replaced, and the modifications or the replacements may not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.