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Coke Dry Quenching (CDQ) System

CDQ is a heat recovery system to cool the hot coke from coke ovens. It is one of the most renowned energy-efficient and environmentally-friendly facilities within steel production. CDQ is a system where hot coke removed from coke ovens at a temperature of approximately 1,000°C is cooled and kept dry with inert gas and the resulting steam produced in a waste heat recovery boiler is used to generate electricity.

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Coke dry quenching chamber Issued December 26, 2011 Ukraine 66131. See patent. Courses. Driving (Category B) Honors & Awards. Diploma for the best sectional report at ...

Dry Cooling of Coke – IspatGuru

Apr 25, 2013 · Concept of Coke Dry Cooling. Hot coke is brought from the battery to the CDCP in bottom opening bucket kept on the quenching car. This bucket is lifted at the CDCP by a hoisting/charging device to the top of the CDCP chamber and red hot coke is discharged in the chamber for cooling. Hot coke (temperature around 1000 – 1100 deg C) is cooled in the chamber by the inert gas.

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Feb 17, 2015 · dry topping — see dry-shake (preferred term) dry-batch weight — the mass of the materials, excluding water, used to make a batch of concrete. dry-cast process — a process for producing concrete products, such as pipe, using low-frequency high-amplitude vibration to consolidate dry-mix concrete in the form.

Coke Dry Quenching (CDQ)

CDQ (Coke Dry Quenching) is a gradual coke quenching system, and improves coke strength and coke size distribution. Consequently, while the blending ratio of inexpensive non- or slightly-caking coal for coke oven material is only approx. 15% in case of CWQ (Coke Wet Quenching) system, it can be increased up to approx. 30% by CDQ, resulting in a cost reduction with raw materials for coke oven.

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Ari Korkala, an electrical maintenance planner at the SSAB steel mill, explains the situation: “In the coking plant we have what is called the dry quenching stage where an elevator lifts a bucket of hot coke into the dry quenching chamber. The elevators are crucial and if there is a malfunction, the whole process stops since nothing can be lifted.


Coke Oven Machines CHARGING CARS Coal charging cars provided by Paul Wurth distinguish themselves by a robust-design sealed charging as well as fast and controlled charging. More than 85 Schalke-branded charging cars have been supplied to date. Our

Construction and Operation of Battery D, No. 5 Coke

CDQ (coke dry quenching) Existing Existing Existing 5A 5B 5C 5D Fig. 1 Layout of No. 5 Coke Oven Battery 図1 第 5 コークス炉設備配置 Wet: Wet quenching Dry: Dry quenching Arrangement Wet or Dry Wet or Dry Wet or

Industrial Steam Boiler,Coal Boiler,Gas Boiler,Oil-fired Boiler

Coke Boiler, Coke Boiler Suppliers and Manufacturers . This is a video, click and learn more about our company's strength! Gas Steam Boiler For Steam Turbine Prices Capacity Range 4.2MW-70MW Pressure Range 1.0-1.6MPa Fuel Type Light diesel oil, Natural gas, Coke oven gas, Liquefied gas Exworks Type Bulk packed assemble 1.

Exergy Analysis of a Coke Dry Quenching System

co-generation plant, has been installed in the No.3 coke oven plant of China Steel Corporation to replace the conventional wet quenching process. Figure 1 illustrats the process flow diagram of the installed CDQ system. As described above, the coke dry quenching process involves sophisticated heat, mass transfer and combustion phenomena.

Coke Oven Machines

Quenching Locomotive (QL) The basic function of the Quenching Loco is to pull or push the following quenching car and/or bucket cars with load of hot coke from one oven to the quenching tower/or CDQ for the dry quenching process. They also take the hot cake to the emergency quenching unit.

Innovations in the dry quenching of coke

Abstract Analysis of the construction and operation of coke quenching chambers facilitates the identification of their deficiencies. The elimination of these deficiencies permits increase in operational efficiency of existing dry-quenching systems and the development of new high-performance systems.

dry coke quenching, air pollution and energy: a status

2012/03/13 · Dry quenching of incandescent coke after it has been pushed from the coking ovens is a proved, reliable process that is presently being used in several industrialized countries. Foremost among dry ...

Catalyst recycle in slurry-phase residue upgrading

The application of slurry-phase hydroconversion to upgrade residue oil derived from the Canadian oilsands (CLVR) is hindered by the cost of the catalyst, in part because the catalyst is used once-through before being discarded as part of the solid product (coke). The goal of the present study was to assess the potential of recycling the slurry-phase catalyst under high residue conversion ...

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I had not been long at school, stationed in that same chamber, when, having stood out for the foundation, and obtained admission to it, he became an occasional visiter, sometimes for days together, at the boarding-house, where he had formerly lived, and resumed his former situation of bedfellow to Mitford.

Coke Dry Cooling Plant | Coke Dry Quenching Solutions

Traditionally dry quenching process is being adopted for the cooling of Coke produced from the Coke Oven Battery in Steel Plants. Water is used as cooling media to cool the hot coke which not only consumes large volume of water but also releases harmful pollutants which is also not permitted buy the government latest regulations.


incandescent coke mass is pushed from the oven and is wet or dry quenched prior to its shipment to the blast furnace.

DE4028142A1 - Wet quenching for hot coke from coking ovens

Wet quenching method (e.g., for hot coke) is claimed that includes utilisation of the waste heat. A closed chamber is used to minimise the entry of air. In claimed embodiments, claims include the cooling process may be continuous instead of intermittent.

Environmental Control and Emission Reduction for Coking

Subsequently to a 15 to 25 hours coking time the doors are opened and the built coke is pushed by the coke pusher machine out of the oven into a coke quench car.Then the coke is quenched in a dry or wet quenching facility. The oven chamber is sealedagain, initiating a new carbonization cycle.

Computational Fluid Dynamics Analysis of Double flue

Fig.7 Air temperature on symmetry plane of CDQ chamber III. DOUBLE FLUE GAS QUENCHING A coke dry quenching apparatus comprises a vertical chamber in the lower portion of which, is disposed a quenching gas feeding means. The chamber has in its roof a charging hole and in its bottom a discharging gate. In the

A new way of coke quenching to improve the quality of coke at

Oct 21, 2014 · Based on laboratory results, different methods of quenching were carried out in Coke Plant, battery no. 8 of Tata Steel. Results show that 15 second of top quenching, 15 seconds of side quenching, 25 seconds of quenching gap and 40 seconds of second top quenching will improve coke quality in terms of M40, CSR, plus 30 mm size of coke, micro-fissures and moisture.

India's largest CDQ facility at Tata Steel Kalinganagar

Tata Steel has established India's largest Coke Dry Quenching facility at its state-of-the-art steel plant at Kalinganagar Industrial Complex in Jajpur district of Odisha.

Features Basic Concept or Summary

coke is cooled gradually in chamber by the use of cooling gas.As a result, the coke is free from surface pore due to aquatic gasification reaction and internal crack that occur in wet quenching. In addition, brittle portions of coke are removed when it drops in the chamber. *1 Drum Index *2 Coke strength after-CO2 Reaction 5.

Coke Dry Quenching Plant at TATA Steel, Jamshedpur

2019/02/14 · Pre-chamber: 300m3 Paul Wurth IHI Co., Ltd. (hereinafter, “PWIHI”) is pleased to announce that the first hot coke has been charged into the CDQ#11 coke dry quenching system to start operation at Tata Steel, Jamshedpur, India ...


iii. COKE DRY COOLING PLANT: Hot coke produced in Coke Oven Battery is fed in the CDCP chamber at the top. In the CDCP, hot coke from Coke Oven at a temperature of around 1050 0C is cooled down to cold coke of temperature less than 200 0C. The heat extracted from hot coke is utilized in Waste Heat Boilers to generate High Pressure Steam

Model predictive control for improving waste heat recovery in coke dry quenching

Model predictive control for improving waste heat recovery in coke dry quenching processes Kai Sun a, Chen-Ting Tseng b, David Shan-Hill Wong b, Shyan-Shu Shieh c, **, Shi-Shang Jang b, *, Jia-Lin Kang b, Wei-Dong Hsieh d a Department of Automation, Qilu University of …

Creation of Centuries (Turns)

The crab's children seek revenge on the monkey. With the help of several allies — a chestnut, a mortar, a bee, and a cow pie — they go to the monkey's house. The chestnut hides himself on the monkey's hearth, the bee in the water pail, the cow pie on the dirt floor, and the usu on the roof.

Model predictive control for improving waste heat

Model predictive control for improving waste heat recovery in coke dry quenching processes Kai Sun a, Chen-Ting Tseng b, David Shan-Hill Wong b, Shyan-Shu Shieh c, **, Shi-Shang Jang b, *, Jia-Lin Kang b, Wei-Dong Hsieh d a Department of Automation, Qilu University of Technology, Jinan, Shandong 250353, China ...


Cloud chamber - detects radiation using water vapor; developed by Wilson. Gas Ionization chamber - such as Geiger-Muller counter. Disintegration series - sequence of atoms during decay. Radiocarbon dating - C 14, K-Ar, U-Pb methods. Radioactive tracers - Na 24 blood, Th 201 and Tc 99 heart, I 131 thyroid liver and brain, Pl 238 pacemakers

DE3215807A1 - An apparatus for dry quenching coke

Coke Dry Stew Chamber GB1433575A (en) * 1974-07-31: 1976-04-28: Gvi P Koxokhimicheskot Promy: Device for dry quenching of coke and other combustible lumpy materials US4024023A (en) * 1976-02-13: 1977-05-17: Koppers Company, Inc. Apparatus and method for transferring hot coke to a dry coke cooler

US4211607A - Dry coke quenching process

A dry coke quenching process comprises the steps of preheating coke from a coke oven to a temperature of not lower than 1200 C. by way of burning over its layer a combustible gas mixed with heated air, cooling the coke first to a temperature of not lower than ...