Coke dry quenching coke pot liner

Abstract

The invention relates to a coke dry quenching coke pot liner, which comprises a liner body and a liner keel. The coke dry quenching coke pot liner is characterized in that: the liner body is formed bydie molding of a refractory castable and baking, the liner keel is a Pi-shaped support made of phi 12mm stainless steel, the Pi-shaped support is arranged in the length direction inside the block body to serve as a liner keel, the middle part at the top of the Pi-shaped stainless steel support is welded to the head of a bolt, a threaded rod is perpendicular to the support plane, and the threadedrod stretches out of the block body surface to certain distance. The coke dry quenching coke pot liner has the advantages that: the refractory castable coke pot liner has a simple structure and is convenient to manufacture, ensures few fixed point, good stability, good heat insulation effect and long service life, and reduces the heat loss of coke, the refractory castable coke pot liner is low incost, simple and practical, energy-saving and environment-friendly, and reduces the maintenance and operation cost of the coke dry quenching furnace system.

Description

technical field [0001] The invention relates to a coke tank liner, in particular to a coke dry quenching coke tank liner. Background technique [0002] Dry coke quenching is an advanced technology in coking production. It has the functions of saving energy, reducing consumption and protecting the environment. At the same time, it can improve the quality of coke and play a significant role in promoting the increase of blast furnace production capacity. The coke tank car is one of the main complete sets of equipment in the coke oven dry quenching device. It is used to receive and transport the red coke from the coke oven coke holding car, and send the coke to the CDQ furnace for exchange with nitrogen to recover the heat energy of the red coke. The coke tank is the coke container on the coke tank car. The coke tank is mainly composed of a welded skeleton and a lining plate. The middle is a straight circle. The upper coke loading port is inclined outward, and the lower coke dis...

AI Technical Summary

Problems solved by technology

The service life of the coke tank liner is about 6 months. The coke tank top is equipped with a liner at the coke mouth, which is easily deformed. The coke tank straight barrel liner is easily deformed, and the cracks are relatively serious.

After analysis, the reason for the damage of the coke tank lining is that it is difficult to take into account the high temperature wear resistance and high temperature impact resistance.

The higher the hardness, the higher the wear resistance, but the lower the impact resistance, it is easy to break

Especially after the liner is thinned, serious deformation and cracking occur, and the wear resistance and impact resistance are not good.

Due to the problem of the liner, the service life of the coke tank is short, the maintenance is frequent and the maintenance cost is high

[0004] Chinese patent CN102212820A disclosed on October 12, 2011 a high-temperature wear-resistant liner for CDQ coke tanks and its preparation method, wherein the liner is a metal liner clad with a cermet layer, although the metal liner is extended and CDQ coke tank service life, but the production process of the metal lining plate clad with cermet layer is complicated and expensive

Therefore, before it is not sintered, the strength of the liner itself is low, and it is difficult to install and fix the liner on the coke tank in the later installation of the liner

Its specific performance is that there are too many fixed points of the liner on the coke tank, the cost is high, and the heat insulation effect is poor; the liner has less fixed points and the stability of the liner is poor

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