摘要:
A heating system for regenerative coke oven batteries having a plurality of coke oven chambers separated by heating walls and a plurality of regenerators extending the length of the coke oven for preheating air and cooling hot waste gases comprises a plurality of spaced heating ducts extending upwardly in the heating walls which are grouped into two adjacent pairs of heating ducts. The ducts in each group of four heating ducts are separated by first and second binder walls with the first binder walls carrying one binder duct for supplying air and discharging hot waste to and from adjacent heat ducts in one of the pairs in the group. The second wall is either provided with no heating ducts or a pair of heating ducts. A horizontal channel connects the tops of all four heating ducts in each group and the lower end of each heating duct is provided with a rich gas supply nozzle.
摘要:
A method of producing blast furnace coke from bituminous coals, particularly coals having poor coking capacities in which the coal to be carbonized is ground, predried or preheated, mixed with binders, compressed or formed into briquets having small mechanical resistances and charged into oven chambers, is characterized by fine coals or fine coal mixtures having a swelling index in mixture according to DIN 51741, smaller than 7, and preferably, below 6, and comprising more than 50% of poorly or non-baking coal having a content of volatile matter in excess of 30% or less than 20% which coals or coal mixtures are ground up to attain a surface per unit mass, according to DIN 66145, of from 400 cm.sup.2 to 1200 cm.sup.2 per gram, with from 3% to 8% by weight of organic binders, compressing the mixture to form it into a briquet at a temperature range of from 70.degree. C. to 300.degree. C. and charging the compressed briquet into the oven chambers without substantial intermediate cooling in order to carbonize it.
摘要:
A coke oven door comprises a flat sealing diaphragm which is secured between and spaced apart from the door body and the door plug and is provided on its periphery with sealing knife edges which project against the door frame. The sealing edges are pressed against the door frame by bias adjustable springs, through spring loaded plungers. The door plug is formed by a plurality of individual plug elements closely adjacent to each other and supported by associated plug holders, and the sealing diaphragm is firmly screwed in place between the door body and the plug holders only in the upper and lower zones or areas of the door. In the intermediate zone, the diaphragm is connected to a back-up plate and to the plug holders and held adjustably spaced apart from the door body.
摘要:
The process for the production of molded metallurgical coke from dried coal or fine coal mixtures with a low swelling index particularly highly volatile fine coal comprises mixing normal washed fine coal or fine coal mixtures of a grain size of from 0 to 10 mm and a swelling index of not more than 5 with a binder, pressing the mixture into briquettes, oxidizing the briquettes in a continuous material flow stream, and coking the oxidized briquettes continuously in an oven chamber by supplying indirectly and exhausting the coke oven gases with a temperature of 300.degree. to 1200.degree. C. The device for carrying out the process includes a vertically extending reactor housing having an oxidation chamber adjacent the top thereof with an indirectly heated vertical coking chamber directly below the oxidation chamber and with a cooling chamber directly below the coking chamber and including means for circulating heating gases into the coking chamber and then upwardly through the coking chamber and out adjacent the top of the coking chamber and into the oxidation chamber.
摘要:
The process for the production of molded metallurgical coke from dried coal or fine coal mixtures with a low swelling index particularly highly volatile fine coal comprises mixing normal washed fine coal or fine coal mixtures of a grain size of from 0 to 10 mm and a swelling index of not more than 5 with a binder, pressing the mixture into briquettes, oxidizing the briquettes in a continuous material flow stream, and coking the oxidized briquettes continuously in an oven chamber by supplying indirectly and exhausting the coke oven gases with a temperature of 300.degree. to 1200.degree. C. The device for carrying out the process includes a vertically extending reactor housing having an oxidation chamber adjacent the top thereof with an indirectly heated vertical coking chamber directly below the oxidation chamber and with a cooling chamber directly below the coking chamber and including means for circulating heating gases into the coking chamber and then upwardly through the coking chamber and out adjacent the top of the coking chamber and into the oxidation chamber.
摘要:
A method of producing blast furnace coke from bituminous coals, particularly coals having poor coking capacities in which the coal to be carbonized is ground, predried or preheated, mixed with binders, compressed or formed into briquets having small mechanical resistances and charged into oven chambers, is characterized by fine coals or fine coal mixtures having a swelling index in mixture according to DIN 51741, smaller than 7, and preferably, below 6, and comprising more than 50% of poorly or non-baking coal having a content of volatile matter in excess of 30% or less than 20% which coals or coal mixtures are ground up to attain asurface per unit mass, according to DIN 66145, of from 400 cm.sup.2 to 1200 cm.sup.2 per gram, and with from 3% to 8% by weight of organic binders, compressing the mixture to form it into a briquet at a temperature range of from 70.degree. C. to 300.degree. C. and charging the compressed briquet into the oven chambers without substantial intermediate cooling in order to carbonize it.