Bergwerksverband Gmbh

Firma Carl Still Gmbh & Co Kg

Ruhrkohle Ag

Gerd Nashan

Horst Dungs

Kurt Lorenz

Dieter Breidenbach

Wolfgang Rohde

Josef Volmari

Manfred Blase

Heinz Durselen

Klaus Wessiepe

Heinrich Echterhoff

Josef Volmark

Heribert Bertling

Manfred Galow

Gunter Meyer

Ralf Schumacher

Dieter Stalherm

Josef Langhoff

Kurt-Gunther Beck

Werner Abendroth

Ulrich Kochanski

Jurgen Tietze

Wilhelm Stewen

Helmut Dohle

Manfred Friedrichs

Johannes Janicka

Joachim Lehmann

Wilhelm Weskamp

Gerd Klinkenberg

Wilhelm Reerink

Kurt-Guenther Beck

Johannes Muller

Kurt Degen

Kurt Kleisa

Joachim Holtz

Dieter Makrutzki

Reactor chamber door for large-scale coking reactors

A preferred method of dry cooling coke includes the steps of removing the coke from the coke oven, crushing the coke with a crushing device to increase a surface area thereof, transporting the coke after crushing to a dry cooling apparatus, and dry cooling the coke by the transfer of heat at the surface area which has been increased by the crushing.

Dry cooling of coke

Coking system, wherein the coking blends particularly based on hard coal, are fed batchwise to a reactor (1), which is heated indirectly by heat recovery in regenerators (I, II) or recuperators, whereby the reactor is built as a high-capacity coking reactor (100), several high-capacity coking reactors are combined to form a reactor block and the high-capacity coking reactors are built as mutually independent modules, whereby each module can be operated or optionally replaced independently of the neighboring modules, with little or no impairment of the operation of the neighboring modules. The individual reactors are independently operatable in terms of statics and heat supply. The regenerators, or recuperators (I, II, R, R') can be arranged laterally or underneath the reactor chamber. Neighboring reactors can have a common intermediate wall (2). The reactor chambers have a width of at least 0.7 m, a height of at least 8.5 m and a length of at least 18 m.

Coking reactor

An apparatus for dry cooling red-hot coke having an antechamber with a small discharge leading to a vertically elongated cooling chamber which is of larger dimension than the discharge and with both the cooling chamber and the antechamber having fluid cooling tubes in one or more walls and the ceiling thereof and also having a cooling tube bank in the shape of truncated pyramid comprising trapezoidal walls diverging downwardly from the discharge of the antechamber into the cooling chamber.

Apparatus for dry cooling red-hot coke

A waste heat boiler system includes a vertically elongated waste heat boiler having an upper portion with a waste gas inlet and a lower portion with an exhaust line connection which in addition to its vapor generating tubes includes evaporator tube nests and a water preheater. The waste gases are received from a dry coke cooling vessel and they are delivered through a separator by a blower to the lower end of the coke cooling vessel for flow upwardly through the hot coke. The superheater is mounted over the waste heat boiler and has a connection through a controllable valve to the top of the waste heat boiler. The superheater includes its own burner and air and external gas supply are supplied to the combustion chamber for the superheater along with bypass portion of the circulated waste gases. The steam generated by the boiler is delivered from a steam cylinder or drum in the superheated tubes of the superheater. Some of the gases from the superheater are selectively delivered to the waste heat boiler and some are discharged through atmosphere.

Method for cooling coke and generating superheated high pressure steam

A method of dry cooling red-hot coke in a vessel having an antechamber with a small discharge leading to a vertically elongated cooling chamber which is of larger dimension than the discharge and with both the cooling chamber and the antechamber having fluid cooling tubes in one or more walls and the ceiling thereof and also having cooling tube bank diverging downwardly from the discharge of the antechamber into the cooling chamber, comprises directing the red-hot coke to be cooled downwardly through the antechamber and into the cooling chamber so as to maintain a charge of coke in the cooling chamber to the conical charge cone of the cooling tubes adjacent the top of the cooling chamber which extends downwardly below the discharge, thereafter circulating a coolant through the cooling tubes to effect transfer of sensible heat from the coke to the fluid and directing a cooling gas from the bottom of the cooling upwardly through the coke and above the entire area of the coke charging cone and then into an exhaust duct to one or more waste heat boilers.

Method for dry cooling red-hot coke

A dry coke cooling apparatus comprises an antechamber with a bottom hole for charging coke into a cooling chamber which accommodates vertical outer cooling walls and inner cooling walls which extend within the coke charge. The lower part accommodates coke discharge equipment and conduits for supplying circulated cooling gas which passes upwardly through the charge, to be exhausted at the top. The inner cooling walls are supported on hollow beams which are cooled by the circulated cooling gas directly or indirectly.

Dry coke cooling plant

Waste heat boiler system, and method of generating superheated high

The quality of coke is improved by measuring the width of a plastic zone of a given type of coal, comparing said measured zone with a predetermined zone width known to result in good quality coke, adjusting certain characteristics of said given coal prior to charging it into the coke oven to cause a change in said zone width of the coal that will ultimately result in improved coke quality. Typical adjusting steps include preheating the coal and/or the addition of coal binders, such as, various carbon and petro-based binding agents, for example, pitch.

Procedure to control quality of coal

Coke is mixed with bituminous coal and the mixture is converted into briquettes. To obtain high-quality and high-strength briquettes, the temperature of the coke is adjusted, prior to mixing, to such a level that when the mixing takes place, the coke/coal mixture will have a precisely predetermined temperature within the scope of 400.degree.-500.degree. C. The exact temperature within this range is selected in dependence upon the characteristics of the coke and the coal.

Method of hot-briquetting mixtures of coal and coke

The output of coke ovens is increased if the brick constituting the wall between the flues and the coking chamber has a thermal conductivity matched to the rate at which the coke accepts heat. Magnesite has been found to have appropriate thermal conductivity. This material at the lower end of the coking range, namely 1200.degree. C, is impractical due to the fact that it develops cracks and flakes off. However at the higher end of the desired coking range, namely 1300.degree.-1400.degree. C, these difficulties do not appear, and the use of the material leads to increased output of the furnace. More particularly according to the invention firebrick is used which has a thermal conductivity of 2.0-6.0kcal/mh.degree. C and is composed of 20-45% SiC, 23-57% Al.sub.2 O.sub.3 with the remainder consisting of SiO.sub.2 and traces of other oxides.

Firebricks

Improvements in the process of producing coke from bituminous coal in high-efficiency coking ovens, whereby the size of the lumps of coke and their strength are both increased, which comprises maintaining a coking rate between 1.2 and 2.8, and preferably between 1.44 and 2.0, inches per hour, based upon the width in inches of the coking chamber and the time required to complete the coking operation, and maintaining a rate of temperature increase between 1.6 and 3.3 centigrade degrees per minute during the heating of the coal while it is in the plastic range. The coal preferably is also preliminarily heated to a temperature between 160.degree. and 250.degree.C, preferably between 180.degree. and 200.degree.C, before being charged to the high-efficiency coking oven, and the width of the coking chamber of the high-efficiency oven that is used is at least 500 millimeters (19.7 inches).

Processes of producing cokes of large lump size and improved strength

Growing community of inventors

Oberhausen, Germany

Gerd Nashan