Drying heating method for production resumption of coke dry quenching furnace after medium repair

A CDQ furnace and oven technology, applied in coke ovens, coke cooling, petroleum industry, etc., can solve the problems of difficult assembly and disassembly of gas oven equipment, long oven time, and high gas consumption, etc., to shorten production time, saving installation and dismantling time, fast heating effect

Active Publication Date: 2017-09-26
SHANGHAI MEISHAN IRON & STEEL CO LTD
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AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a method for raising the temperature of the oven after repairing and resuming production in the CDQ furnace, which mainly solves the problem of long oven time and energy consumption

Method used

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Example Embodiment

[0018] The following specific embodiments will further clarify the present invention. It should be understood that the following specific embodiments are only used to illustrate the present invention and not to limit the scope of the present invention.

[0019] In the example, the processing capacity of the dry quenching furnace is 140t / h. It is equipped with two 55-hole 6m coke ovens for dry quenching production. The scope of brick repair and replacement in the dry quenching furnace includes: working surface layer in the chute area of ​​the dry quenching furnace, pre-storage Section of the inner wall of the annular air duct, the pre-stored section of the annular air duct retaining wall, the primary dust retaining wall, the furnace mouth brick and the lower cone cast slab bricks, the replacement amount of refractory bricks is about 300 tons, accounting for about 1 / 4 of the total refractory bricks.

[0020] A furnace heating method for resuming production after a dry quenching furnac...

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Abstract

The invention discloses a drying heating method for production resumption of a coke dry quenching furnace after medium repair and is mainly intended to solve the technical problem that the use of the gas drying heating process in the production resumption of an existing coke dry quenching furnace after medium repair results in long drying time, high gas consumption, high drying cost and difficulty in gas drying equipment assembly and disassembly. A coke dry quenching furnace under production resumption after medium repair is dried with heat from red coke that is at 1000 DEG C and that is pushed out of a coke oven, and quick heating is achieved for the coke dry quenching furnace under production resumption after medium repair; compared with existing gas drying heating processes, the drying heating method is lower in drying gas consumption, shorter in production resumption time of the coke dry quenching furnace after medium repair, and higher in production efficiency of the coke dry quenching furnace. The drying heating method is applicable to the drying of a coke dry quenching furnace for production resumption after medium repair, while a pre-storage segment of a coke dry quenching furnace is under replacement and a cooling segment is not repaired.

Description

technical field [0001] The invention relates to a method for raising the temperature of a dry quenching furnace, in particular to a method for raising the temperature of a dry quenching furnace after repairing and resuming production, and belongs to the field of ferrous metallurgical industrial kilns. Background technique [0002] The coke dry quenching process is a coke quenching method that uses inert gas to cool the high-temperature coke released from the coke oven. Its English name is coke dry quenching, or CDQ for short. Compared with the traditional wet coke quenching process, the dry coke quenching process has the advantages of improving coke quality, recovering red coke sensible heat, and reducing environmental pollution caused by wet coke quenching. [0003] In the CDQ process, after the heat of red coke is transferred to the gas heat carrier, the gas heat carrier transfers the heat to the heat exchange surface of the heat exchange equipment (boiler) to generate ste...

Claims

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Application Information

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IPC IPC(8): C10B39/02
CPCC10B39/02
Inventor 徐顺国沈小华
Owner SHANGHAI MEISHAN IRON & STEEL CO LTD
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