DE898291C - Process for producing a hard, lumpy coke from bituminous fuels by flushing gas in the lower part of the smoldering zone or in a subsequent stage or zone within a continuously operated, internally heated shaft furnace equipped with distribution hoods - Google Patents

Description

A process for producing a hard, lumpy coke from bituminous fuels by Spülgasschwelung in the lower part of the carbonization zone or in a subsequent stage or zone within a continuously operated internally heated and equipped with distribution hoods shaft furnace The method according to the patent 762,217 permitted by extremely gentle Bahandlun, g lumpy bituminous fuels within the entire area of the dry zone, which is achieved through uniform and gradually progressive heating using the new, step-wise flushing of this fuel in cocurrent, countercurrent and cross-flow, compared to the previously known processes under smoldering; g to on Dunkelratiglut or up to about 6oo ° a piece good to get crack-free coke, which nebien so far unmatched strength the shape of the original used solid fuel at the lowest Has retained volume shrinkage. It has. Nine continues to show that, ß. an increase in coke Fe: sitiigkeit can thereby be achieved, t when the ei @ gie; r. @ tli @ chen smoldering process in the coke four days Riestfreer, who due to its high creosite content, from the Gellulosie- or Liönits @ ub @ s, dances, is practically worthless, by a subsequent, above 600 ° carried out cracking process within baJb the coke mass is decomposed. The inside half of the microcapillaries are responsible for excretion menden pechardgein substances result. one, extremely wiTksamios binders, so the that way hard coke produced such a high compressive strength that he is responsible for the verb: renunciation and gassing processes that generate a high bulk long, such as central heating ovens, generators, and excellent for metallurgical processes or furnaces gee% not, especially since his ability to react des Sfieinkohlie @ nkokses by far. Its beneficial property is particularly evident used as a reducing agent when used bniem smelting of low-iron acidic ores in high lofen, whereby the As-chenzus @ a, mnmensietzumlg the coke briquettes have a favorable influence on the melting process, whereby a certain addition of lime is spant. While so far the purge gassing within .dien Smoldering zones gradually until purchase of dark red embers or until @e "was operated about 6oo °, ans-chhe- ßend the: obtained smoldering coke by supplied Indifferent purging gases or vapors at a higher temperature flows through the smoldering coke in the best possible part, penetrate and serve residual tar under pitch split ab @ scheidMg and the absorbed methane to displace miemigen to a large extent. De- chenden hot purge gases are immediately or make successful combustion of the resulting coal was-sersibofe supplied to the circulatory process that leads to Aufheixumg: the purge gases are cleared for generation required amount of steam is used. The he produced coke subsequently migrates through a coke cooling zone, if it doesn't: closing generator, water gas, or synthesis gas system is fed, where he as a result of his hard and evenly-piece texture Achieve bulky storage Mäßet. Through this is largely the course of the intended Has a positive effect on gas reactions; she, will be example I know. the synthesis gas production the content of. indigenous gases and methane as far as possible pressed down, - 0 that with the following petrol synthesis, the highest levels of efficiency can be achieved.

Claims (1)

PATENT CLAIMS: i. Process for producing a hard, lumpy coke from lumpy bituminous Fuels, aniseed lignite briquettes, duech gradual smoldering within one Senlelechten, ster # g-operated, internally heated Check box that is within the in rows one above the other; arranged internals for introducing and discharging: the gases and vapors possesses, with flushing of the bron! nsto @ ff mass in direct, counter and cross flow, with the Purge gases and vapors circulated in the circuit are, according to patent 762 z 17, thus kemn- zeychniet that then to the start of the dark red glow, led. Smoldering process : the @generated smoldering coke with higher Gasion is treated. z. Method according to claim i, characterized in that indicates that the treatment of the coke time higher temp, erie'rie'r flush lanes after Wandering through the exclusion zone takes place. 3. The method nasch claim i and a, characterized characterized in that the hard coke obtained instead of thrashing the coke cooling zone, immediately e @ no one then G! eneraitor gas, water gas or Synthesis gas generator, possibly also one urban gas generators working under pressure to be led. ¢. Method according to claim 1, 2 and 3, there- , characterized by: that: the temperature of the @ Rinsing gas: is applied so high that: a Get hard coke with the lowest methane content will. 5. Method make claim: 1, a, 3 and q., There- , by geken.nzeichniet that particularly lime-rich Bronneboffe get to use the one for the smelting of low-emptied, acidic ores ders, genignieten hard coke: devoted.