Operational Excellence in Recovery Stamp Charge Cokemaking ...

Another important aspect of this journey of excellence in stamp charge coke making is a culture of development and improvement adopted by Tata Steel. Work on understanding coal behavior in …

Enhancement of the productivity of non-recovery stamp ...

This excess demand for metallurgical coke production from the existing non-recovery stamp charge coke oven plant was a very tough challenge, …

(PDF) A review on stamped charging of coals - …

The stamped charging of coals, developed in Europe and adopted in China and India, allows the use of high volatile poor coking coals, soft and semi …

Optimization of coal blends for coke making by the stamp ...

@article{osti_106378, title = {Optimization of coal blends for coke making by the stamp-charging process}, author = {Kuyumcu, H Z}, abstractNote = {Stamp charging means coke production in horizontal chamber ovens, where the coal blend is previously compacted to a so-called coal cake with slightly smaller dimensions than those of the oven and charged to the …

Influence of the prime hard coking coal in stamp charge ...

The optimum composite coking potential (CCP) value of 4.6-4.9 is the ideal value for producing coke CSR in the range of 69-71 in recovery stamp charge cokemaking process in …

A review on stamped charging of coals - SlideShare

Straw was used as a binder and a specially designed charger car/ram built to load the charge into the oven from the back. Coke made by the stamp charging process was of a denser and larger variety than that made in other ways, making its use ideal for ironmaking in foundries where strength is an important factor.

Stamp – charged coke oven battery: 1 – battery refractory ...

Stamp – charged coke oven battery: 1 – battery refractory brickwork, 2 – SCP (Stamping- Charging-Pushing) machine, 3 – coal tower,4 – stamping units, 5 – coal cake, 6 – CGT ...

Assessment of thermal efficiency of heat recovery coke ...

The heat recovery stamp charge coke making process is quite complicated due to the evolved volatile matter during coking, is partially combusted in oven crown and sole flue in a controlled manner to provide heat for producing metallurgical coke. Therefore, the control and efficient utilization of heat in the oven crown, and sole flue is difficult, which directly affects the …

Stamp – charged coke oven battery: 1 – battery refractory ...

Stamp – charged coke oven battery: 1 – battery refractory brickwork, 2 – SCP (Stamping- Charging-Pushing) machine, 3 – coal tower,4 – stamping units, 5 – coal cake, 6 – CGT (Charging Gas Transfer)...

Effects of binder on recovery stamp charged coke making ...

The optimum stability of coal cake is essential for producing good quality of coke in stamp charged coke making process. A suitable binder named as 'X7' was identified to improve the stability of coal cake, oven throughput, coke quality and reduce specific energy consumption for stamp charged coke making process. Laboratory results show that addition …

Modelling and simulation of stamp-charged coke making by 2 ...

In stamp-charged coke making, the coal charge is compacted to one large cake before entering the coke oven. A coal cake density of approximately 80% of the coal solid density is needed to produce a high-quality coke. Also, sufficient mechanical strength is required when transferring the cake from the stamping machine to the oven.

Operation of Cutting-Edge Coke Oven Having all of ...

Stamp charge coke oven Gas transfer car Stamp charger/Pusher machine Oven chamber Coke transfer car Coke oven proper Coal cake Stamping machine. ol. 5 o. 2 207 7 Products conditions. For example, consider that in the first oven chamber, distillation is in …

Stamp charging technology - Rudolf Lesch Consulting

During the stamp charging process, the coal is stamped outside the coke oven, into a single „briquette" (coal cake), having almost the same dimensions as the oven chamber. This coal cake reaches a density of up to 1.15 t/m³ (on wet coal basis with 10% water) – about 30% more than with the loose coal-charge during conventional top charging systems.

[PDF] MECHANICAL COMPACTION OF COKING COALS FOR ...

The density of the coal charge plays an important role in the coke quality. The increase of the bulk density usually improves the coke strength due to increased coal particle contact and increased coke density. There are a few possibilities to increase the coal charge bulk density: adjusting the grain size distribution or moisture content (drying), oil addition and mechanical …

MECHANICAL COMPACTION OF COKING COALS FOR …

compaction process. This method allows obtaining coal charge bulk density of 1100 kg/m3 (wet basis) and higher, whereas for top charged coke ovens this value is on the order of 800 kg/m3. Fig. 1. Stamp – charged coke oven battery: 1 – battery refractory brickwork, 2 – SCP (Stamping-

Coal Stamp Charging Battery | Industrial Efficiency ...

During the stamp charging process the coal is compacted outside the coke oven, into a stable "briquette" (coal cake) with almost the same dimensions as the oven chamber and the resulting cake is pushed into the oven. With stamp charging the bulk density of the charge is increased between 30 to 35% (a 45% increase is reported in Veit & D'Lama ...

Coke production - Hutni project Frydek-Mistek

Classic coke oven batteries: COBS5-HP Top with a charge operation, chamber 5.0m high. COBS7-HP large-spaced with Top-charge operation, chamber 7.1 meters high. COBP-HP with stamp charge operation, chamber 3.6m high (0.44 m width of the chamber) COBP2-HP with stamp charge operation, chamber height 3.5m (0.515 m width of the chamber)

Effects of Stamped Charging on the Strength of Coke from ...

These results show that the charge density employed for the stamped Agro-Allied coal may produce a coke with a lateral contraction lower than 13.5mm and with no adverse effect on the coke oven refractory linings. The heating flue temperature of 1,340 oC used at the NMDC coke oven for the carbonization of

Application of CPS system in 6.78 m stamp-charge battery ...

The newly-built 6.78 m stamp-charge battery of Xintai Zhengda Co.,Ltd.is an ultra-high capacity coke oven that first adopts CPS system in the world.The practical experience shows that the CPS system can effectively solve the problems such as charging emission escaping,oven door emission leakage,etc.and ensure stable pressure at the bottom of coking chamber so as to …

Enhancement of the productivity of non-recovery stamp ...

Therefore, the blast furnace coke demand has increased. This excess demand for metallurgical coke production from the existing non-recovery stamp charge coke oven plant was a very tough challenge, because the coke oven plant was already running at rated production capacity.

A REVIEW ON STAMPED CHARGING OF COALS - ABM …

charger car/ram built to load the charge into the oven from the back. Coke made by the stamp charging process was of a denser and larger variety than that made in other ways, making its use ideal for ironmaking in foundries where strength is an important factor. Another advantage noted was that a much larger range of coals

:,, Abstract: The collapse of coal cake into stamp-charge coke oven is a major factor hindering coke plant production,which would cause abnormal coke oven heating,higher viscosity of coal tar,faster growing graphite,and reduction of refractory tightness and even shorter service life of the coke oven battery.Through analysis and practice ...

Application of Binder in Stamp Charge Coke Making

(LELVLA) poorly coking coals in the stamp charging coal blend. In all the Carbolite oven tests, the maximum lateral ex-pansions of the coal mass during carbonisation were mea-sured using calipers. The resultant gross coke yields and the ash content of the coke samples were determined. The coke samples were also tested for CSR and CRI.

Modelling and simulation of stamp-charged coke making …

In stamp-charged coke making, the coal charge is compacted to one large cake before entering the coke oven. A coal cake density of approximately 80% of the coal solid density is needed to produce a high-quality coke. Also, sufficient mechanical strength is required when transferring the cake from the stamping machine to the oven.

Stamp charging technology - Rudolf Lesch Consulting

During the stamp charging process, the coal is stamped outside the coke oven, into a single „briquette" (coal cake), having almost the same dimensions as the oven chamber. This coal cake reaches a density of up to 1.15 t/m³ (on wet coal basis with 10% water) – about 30% more than with the loose coal-charge during conventional top ...

A Strategy for Fastest Commissioning of 0.475 MTPA Stamp ...

To cater the coke requirement of the blast furnace, JSPL has set up 1.9 MTPA recovery stamp charge ver-tical coke oven plant at the same location. Since verti-cal coke oven plant not only produces coke for blast furnaces but also generates by-products like coke oven gas and coal tar which are also used as a process fuel of

Facts about carbonisation - Rudolf Lesch Consulting

A stamp charged coke oven plant differs from a conventional top charged coke oven plant: in the coal blend used the preparation of the charge coal blend and in the way of oven charging. In all other aspects, a stamp charged coke oven plant is equal to a top charged coke oven plant. Early tests in the Saarberg Research Centre proved that the ...

How does stamp charging work? - Rudolf Lesch Consulting

The stamping box door in front of the oven moves in the "open position". After the complete opening of the stamping box, the movable wall of the Charging machine will be opened. The result is that a gap between coal cake and stamping box …

Coke oven batteries for carbonization of stamped coal ...

In contrast to the bulk charge density of 0.72 t / m3 the density of the coal "cake" in the coke oven increases up to 0.99 - 1.03 t / m3 (on dry basis). Advantages of coal blend stamping technology: Considerable savings - using in coal blend (up to 70%) of cheaper and immediately available coal (high volatile and lean-caking), coke dust ...

COKE OVEN MACHINES

` Coke oven batteries of top charging and stamp charging typ ` ®SOPRECO Single Oven PREssure COntrol ` Coke plant automation COKEXpert™ ` Coke oven machines ` Coke quenching (wet and dry system) ` Coke oven gas treatment plants General technical data Door Service Cars Positioning accuracy 5 mm Chamber height up to 8.43 m