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Environment-friendly type water-quenched coke strength reinforcing agent

A water quenching coke and enhancer technology, applied in the field of coking, can solve the problems of small increase in coke cold and hot state indicators, unstable application effect of blast furnace, and inconspicuous application effect of blast furnace, so as to reduce the moisture content of coke and increase the strength , the effect of reducing reactivity

Active Publication Date: 2013-10-30
王长龙
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, some of the wet quenching processes still use the traditional water quenching, and there are the above-mentioned problems that need to be solved urgently; some of the passivating agent technology, the strength of the coke after the reaction is improved, but the impact on the environment is not improved, especially the application effect of the blast furnace is not obvious , the coke ratio is not significantly reduced; the use of gas film quenching agent technology has improved environmental impact and improved coke quality, but there are problems such as a small increase in coke cold and hot state indicators, unstable application effects of blast furnaces, and high application costs

Method used

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  • Environment-friendly type water-quenched coke strength reinforcing agent
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  • Environment-friendly type water-quenched coke strength reinforcing agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] Hexadecyltrimethylammonium bromide 30%, boric acid 40%, water 20%, hexamethylenetetramine 9%, imidazole 0.2%, ammonia water 0.8%, stir vigorously and mix uniformly according to the total weight percentage of 7.5g, pour into In a watering can with 5L of water, it is used for coke quenching.

[0011] According to GB / T 4000-83 "Test method for coke reactivity and post-reaction strength", the coke balls were prepared manually. Mix a batch of coke balls, and take 500g of coke balls (see Table 1 for quality analysis results).

[0012] Table 1 Analysis results of coke quality

[0013]

[0014] Put 500g of coke balls into the dry distillation device for high-temperature heating. After heating, take out the coke balls, spray the coke quenching with the prepared aqueous solution, observe the coke quenching sound, steam emission, and coke drying during the coke quenching process, and recover the dust in the steam . Dry the coke ball samples after coke quenching for the deter...

Embodiment 2

[0019] Hexadecyltrimethylammonium bromide 35%, boric acid 40%, water 20%, hexamethylenetetramine 8%, imidazole 1%, ammonia water 1%, stir vigorously and mix uniformly according to the total weight percentage of 7.5g, pour into In a watering can with 5L of water, it is used for coke quenching.

[0020] According to GB / T 4000-83 "Test method for coke reactivity and post-reaction strength", the coke balls were prepared manually. Mix a batch of coke balls evenly, and take 500g of coke balls (see Table 3 for quality analysis results).

[0021] Table 3 coke quality analysis results

[0022]

[0023] Put 500g of coke balls into the distillation device for high-temperature heating. After heating, take out the coke balls, spray the coke quenching with the prepared aqueous solution, observe the coke quenching sound, steam emission, and coke drying during the coke quenching process, and recover the coke in the steam. dust. Dry the coke ball samples after coke quenching for the dete...

Embodiment 3

[0028] Hexadecyltrimethylammonium bromide 30%, boric acid 42%, water 20%, hexamethylenetetramine 6%, imidazole 1%, ammonia water 1%, stir vigorously and mix uniformly according to the total weight percentage of 7.5g, pour into In a watering can with 5L of water, it is used for coke quenching.

[0029] According to GB / T 4000-83 "Test method for coke reactivity and post-reaction strength", the coke balls were prepared manually. A batch of coke balls were mixed evenly, and 500 g of coke balls were taken (see Table 5 for quality analysis results).

[0030] Table 5 coke quality analysis results

[0031]

[0032] Put 500g of coke balls into the dry distillation device for high temperature heating. After heating, take out the coke balls, spray the coke quenching with the prepared aqueous solution, observe the coke quenching sound and steam emission during the coke quenching process, and recover the dust in the steam. Dry the coke ball samples after coke quenching for the determi...

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Abstract

The invention relates to a practical environment-friendly type water-quenched coke strength reinforcing agent. The invention belongs to the technical field of coking. The enhanced agent comprises a well mixed mixture of hexamethylenetetramine, imidazole, a boron source, a surfactant source, ammonia water, and water. The materials are well mixed according to weight percentages. The agent is dissolved in coke-quenching water, such that a dilute water solution with a concentration of 0.01-1% is prepared, and the water solution can be used for quenching coke. When the coke quenching water solution with the added practical environment-friendly type water-quenched coke strength reinforcing agent is used for quenching coke, gas bubbles generated by the surfactant source assist in increasing the specific surface area of the coke, such that dust can be effectively absorbed, reactivity of the coke can be reduced, strength of the coke after reaction can be improved, water content of the coke can be reduced, and the discharging amount of harmful vapor can be greatly reduced.

Description

technical field [0001] The invention relates to a practical dosage form of an environment-friendly water quenching coke strength enhancer, which belongs to the technical field of coking. Background technique [0002] The subsequent coke quenching process of coke production requires rapid cooling of hot coke to facilitate transportation and storage. Coke quenching technology is divided into dry method and wet method. Dry coke quenching has the effect of improving coke quality, environmental protection and recovering heat energy. However, due to high investment and operating costs, it is difficult to promote in a short time. Wet quenching is the coke quenching technology commonly used at present. The advantages of wet coke quenching are low investment and operating costs, and simple management. The disadvantages are that the coke strength is reduced after coke quenching and the water content is high and unstable. During the cooling process, water vapor containing a large amou...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10B39/04
Inventor 王长龙
Owner 王长龙