Novel coke stove based on wet-method quenching

Abstract

The invention discloses a novel coke stove based on wet-method quenching. The novel coke stove comprises a quenching section as well as a dry distillation section, wherein a plurality of nozzles are arranged at the bottom of the quenching section; the nozzles are divided into two parts; one part of the nozzles are communicated with a nitrogen inlet tube; the other part of the nozzles are communicated with an ammonia water inlet tube; the dry distillation section is arranged above the quenching section; the quenching section comprises an upper section and a lower section which are connected together; the upper section is directly connected with the dry distillation section, is provided with a water cooling wall and is used for carrying out radiation heat exchange with red hot semi-coke at the dry distillation section; a steam outlet tube of the water cooling wall is fed into a power plant through a waste heat boiler; the lower section is an inert gas quenching section. Quenching of cokeis carried out with nitrogen and ammonia water in a spraying manner, so that the quality of the coke is greatly improved, the red coke can be slowly cooled by using a circulated inert gas in a quenching process, cracks caused by water spraying in wet-method quenching can be avoided, the coke is subjected to mechanical pellet shaping in a dry quenching furnace, the uniformity of coke blocks is improved, and the mechanical stability of the coke is improved.

Description

technical field [0001] The device of the invention belongs to the field of blue coke quenching, and in particular relates to a novel coke oven based on dry coke quenching. Background technique [0002] CDQ technology originated in Switzerland in the last century. Since then, the former Soviet Union, Japan, and Germany have successively made improvements in the large-scale, automation and environmental protection of CDQ devices. At present, there are more than 1130 sets of CDQ devices in foreign countries. Since 1985, when Baosteel introduced Japanese technology and equipment CDQ devices for the first time in China, Jinan Iron and Steel Co., Ltd. and other enterprises have also built several sets. The development of CDQ has promoted the application of CDQ technology in China. [0003] At present, most of the existing coke quenching ovens in the market use water cooling in the coke quenching section. Although water cooling has a good cooling speed, there are cracks caused ...

AI Technical Summary

Problems solved by technology

[0003] At present, most of the existing coke quenching ovens in the market use water cooling in the coke quenching section. Although water cooling has a good cooling speed, there are cracks caused by water spraying, which destroys the finished product quality and mechanical stability of coke, and affects coke blocks. Uniformity of

Images