A dry quenching coke tank liner

Abstract

A CDQ coke tank liner, comprising a liner body and a liner keel, characterized in that: the liner body is made of refractory castable, molded and baked, and the liner keel is φ12mm stainless steel It is made into a Π-shaped bracket, and the Π-shaped bracket is arranged as a lining keel in the length direction inside the block, and the middle part of the top of the Π-shaped stainless steel bracket is welded to the head of a bolt, so that the screw is perpendicular to the plane of the bracket, and the screw extends out of the block a certain distance from the body surface. The CDQ coke tank lining plate of the present invention has the structure of the refractory castable coke tank lining plate, is simple in structure, is convenient to manufacture, ensures that the coke tank lining plate has few fixed points, good stability, good heat insulation effect, long service life, and reduces The heat loss of coke, the refractory castable coke tank lining have the advantages of low cost, simple and practical, energy saving and environmental protection, and reduce the maintenance and operation cost of the CDQ furnace system.

Description

technical field [0001] The present invention relates to a coke tank liner, in particular to a dry quenching coke tank liner. Background technique [0002] Dry quenching is an advanced process 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 promote the increase of blast furnace production capacity. The coke tanker is one of the main complete sets of equipment in the coke oven dry quenching device. It is used to undertake and transport the red coke from the coke oven quenching 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 a coke container on the coke tank truck. The coke tank is mainly composed of a welded frame and a lining plate. The middle is a straight circle. The upper coke loading port is inclined outward, and the lower coke discharge port is inclined inward. The coke...

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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