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Production method of formed coke using coking powder as row-material and special formed coke furnace

A technology of main raw materials and production methods, applied in coking ovens, petroleum industry, etc., can solve problems such as difficult control of furnace temperature, high coke oven temperature, and large waste of fuel, so as to shorten the coking process, save coking coal resources, and reduce production cost effect

Inactive Publication Date: 2005-01-05
李玉林 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The type coke oven of the present invention solves the defects that the coke oven temperature of the existing type coke oven formed by adopting multiple combustion chambers is too high, the furnace temperature is not easy to control, and the waste of fuel is large and the production cost is high.

Method used

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  • Production method of formed coke using coking powder as row-material and special formed coke furnace
  • Production method of formed coke using coking powder as row-material and special formed coke furnace
  • Production method of formed coke using coking powder as row-material and special formed coke furnace

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Example 1 Take 65 tons of coke powder and pulverize until the particle size is less than 1mm, take 25 tons of main coking coal (washed coal), and mix and stir the two to form a mixture. Take 6 tons of coal tar pitch and 4 tons of coal tar, mix and heat until the pitch is completely melted. The above-mentioned mixture is mixed with the asphalt and tar mixture for the second time and vigorously stirred to make them fully mixed, and then put into a pressure molding machine for molding. The molding pressure is 25 tons, and the shape is a cylinder. So far, the coke blank is produced. The above-mentioned form coke blanks are put into a special-purpose coke oven for carbonization, the furnace entry temperature is 1000°C, and the carbonization temperature is 1000-1100°C. Carbonize for two hours. 95 tons of coke

Embodiment 2

[0032] Example 2 Take 70 tons of coke powder; 20 tons of main coking coal; 6 tons of pitch; and 4 tons of tar. The molding pressure is 30 tons. Other technological process is identical with embodiment 1.

Embodiment 3

[0033] Example 3 Take 50 tons of anthracite and crush until the particle size is less than 2 mm; 35 tons of main coking coal; 9 tons of asphalt; 6 tons of tar. The molding pressure is 20 tons. Other technological process is identical with embodiment 1.

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Abstract

The invention is a section coke produced by using braize as main raw material, adding in a proper amount of coking coats and adopting pitch and coke tar as binding agent and then making pressure molding process. It has advantages of low production cost and short coking time. A special section coke furnace for producing the section coke, includes an outer furnace body, there is an inner furnace body in the outer furnace body and they form an interlayer between them. The lower part of the inner furnace body has a tilted furnace bottom and there is a reduced-oxygen combustion chamber and a heat storage chamber between the bottom of the tilted furnace bottom and the bottom plane of the furnace body, the reduced oxygen chamber is connected with the heat storage chamber through a top fire mouth and the interlayer, and the interlayer is connected with a flue through a bottom fire mouth.

Description

technical field [0001] The invention relates to a method for producing molded coke and a special coke oven for producing the molded coke. Background technique [0002] There are many precedents at home and abroad for using waste coke powder from coking plants to produce molded coke. Chinese patent 94119296 discloses "1 / 3 coking coal with coke powder separate coking: production of high-quality metallurgical coke and metallurgical casting coke", which is to mix 3-7% coke powder in 1 / 3 coking coal, and its purpose is to use coke powder as bone Material, in order to improve the coke's crushing strength, lumpiness, microstrength, coke density, porosity and reactivity and other indicators. This method consumes too little waste coke powder, and has no substantial effect on the disposal of a large amount of waste coke powder discharged from the coking plant. [0003] Chinese Patent No. 93112040 separates "a method of manufacturing casting mold coke with coke powder", which is to u...

Claims

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Application Information

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IPC IPC(8): C10B57/04
Inventor 李玉林崔全海
Owner 李玉林
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