Mfg. method for industrial honeycomb briquette
A manufacturing method and briquette technology, applied in the petroleum industry, solid fuel, fuel, etc., can solve the problems of poor thermal stability and low calorific value, and achieve the effects of good thermal stability, high calorific value, and less decrease in fixed carbon
Inactive Publication Date: 2005-12-21
张庆国 +1
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Problems solved by technology
In order to solve these problems, the applicant once developed "the manufacture method of a kind of high-temperature high-carbon gasification briquette" in 2001, finds that it has some deficiencies through test application: the cold strength of briquette is generally at 10-20kg, The thermal strength is generally 8-15kg, the calorific value generated is low, and the thermal stability is poor, etc.
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[0007] The present invention will be further described with reference to accompanying drawing and embodiment:
[0008] The present invention at first prepares moist briquettes, and the proportioning ratio of moist briquettes is obtained through testing in the largest range: white coal powder 70-95%, bituminous coal 5-30%, binder is white coal powder and bituminous coal total amount 5-15%, the briquettes produced by selecting the value within this range can all meet the minimum cold strength, hot strength and thermal stability requirements of the present invention after being treated in the drying furnace of the present invention. When the proportioning range of moist briquette is: white coal 70-80%, bituminous coal 20-30%, binder is 8-15% of the total amount of white coal and bituminous coal, the cold strength of briquette of the present invention And thermal strength and stability have reached the requirement higher than the minimum value, usually the standard that can reach ...
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The invention discloses a method for manufacturing industrial briquettes. Firstly, wet briquettes are prepared. The raw material ratio and preparation of the wet briquettes are made according to the following method. White coal powder 70-95%, bituminous coal 5- After 30% pulverization and mixing evenly, add white coal powder and 5-15% binder of the total amount of bituminous coal, stir evenly and press into wet briquettes, put the wet briquettes on the conveyor belt, and send them to the drying furnace In the middle, the briquettes are dried in the low-temperature zone, medium-temperature zone and high-temperature zone. The walking speed of the conveyor belt is 1.2m-2m / min. The coal inlet and outlet of the drying furnace are open. The coal feeding channel is placed on the upper part of the drying furnace, and the furnace is set in the middle of the channel. There is an inclined fire injection channel between the furnace and the channel relative to the horizontal direction, and the furnace communicates with the feeding hopper. The invention can increase the cold strength of the molded coal to more than 40kg, the hot strength to more than 28kg, and has good thermal stability and the like.
Description
technical field [0001] The invention relates to coal combustion, which is a method for manufacturing industrial briquettes. Background technique [0002] Due to the large amount of coal used in industrial production, production costs have increased year by year. Under the situation that natural raw materials are gradually lacking, those skilled in the art are looking for an alternative product that can reduce the amount of coal used and has a comparable combustion value. In order to solve these problems, the applicant once developed "the manufacture method of a kind of high-temperature high-carbon gasification briquette" in 2001, finds that it has some deficiencies through test application: the cold strength of briquette is generally at 10-20kg, The thermal strength is generally 8-15kg, the calorific value generated is low, and the thermal stability is poor. Contents of the invention [0003] The purpose of the present invention is to provide a kind of manufacture method...
Claims
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IPC IPC(8): C10L5/10
Inventor张庆国刘景勇
Owner张庆国