Horizontal flame path structure at lower part of heat recovery coke oven

Abstract

The invention belongs to the technical field of clean heat recovery coke oven masonry in the metallurgical industry, and particularly relates to a horizontal flame path structure at the lower part of a heat recovery coke oven. The horizontal flame path structure is a quadruple double-C-shaped horizontal flame path formed by a 1 # flame path, a 2 # flame path, a 3 # flame path and a 4 # flame path which are sequentially arranged along the width direction of a carbonization chamber. The horizontal flame path structure is characterized in that three descending flame paths and two ascending flame paths are arranged in a main wall on one side, the descending flame paths respectively communicate with the 1 # flame path and the 4 # flame path, the 1 # flame path communicates with the 2 # flame path through a first turn-back channel opening, the 2 # flame path communicates with the ascending flame paths through a second turn-back channel opening, the 4 #flame path communicates with the 3 # flame path through a first turn-back channel opening, and the 3 # flame path communicates with the ascending flame paths through the second turn-back channel opening. The novel quadruple double-C-shaped flame path structure has the advantages that reverse heating is adopted on the two sides of a partition wall to enhance the uniformity of heat conduction, and the defects of large airflow resistance, dust accumulation and the like caused by dead angles formed at the ends of traditional flame paths are overcome.

Description

technical field [0001] The invention belongs to the technical field of clean heat recovery coke oven masonry in the metallurgical industry, and in particular relates to a horizontal fire passage structure at the lower part of a heat recovery coke oven. Background technique [0002] Heat recovery coke oven in the metallurgical industry refers to the coke production device with micro-negative pressure operation in the coke oven carbonization chamber, mechanized tamping, coal charging, coke discharge, and recovery and utilization of waste heat from coking combustion exhaust gas. The Chinese invention with the patent application number 201911073871.5 discloses a heat recovery coke oven double C-shaped horizontal flue structure and its working method. The lower part of the sealing wall on the machine side and the coke side of the heat recovery coke oven is respectively equipped with multiple secondary air inlets , a longitudinal central partition wall is set below the carbonizati...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a horizontal flue structure in the lower part of the heat recovery coke oven, which overcomes the shortcomings of the prior art, adopts a new double C type flue structure, and is built with high-load soft refractory materials to solve the poor temperature uniformity of the lower flue. , the airflow resistance is large, the airflow distribution is uneven, and it is easy to cause airflow short circuit, and the end of the fire path will form a dead angle, resulting in large airflow resistance and dust accumulation, shortening the coking time and increasing coke production

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