Furnace opening vault laying control device and method for heat recovery coke furnace

Abstract

The invention relates to a furnace opening vault laying control device for a heat recovery coke furnace. The device comprises a furnace opening outer side arch body, a hearth arch body and a supporter, a boss bed mould is arranged on the side, close to the hearth arch body, of the furnace opening outer side arch body, and the upper surface of the boss bed mould supports the bottom surfaces of furnace opening bricks; the boss bed mould and an arch body strip of the furnace opening outer side arch body form a staggered platform structure, and the staggered platform structure is matched with bosses at the lowest ends of the furnace opening bricks; a limit bracket is arranged on the arch body strip of the furnace opening outer side arch body, an arc limit plate is installed on the inner side of the limit bracket, and the inner side surface of the limit plate closely fits the front surfaces of the furnace opening bricks; the supporter comprises a first supporting base and a second supporting base which are arranged at the two ends, in the laying process, the first supporting base is supported on the reverse surfaces of the furnace opening bricks, and the second supporting base is supported on the hearth arch body. According to the device, it can be ensured that in the process of laying the furnace opening bricks, the front surfaces of the furnace opening bricks are perpendicular, after the process of laying the furnace opening bricks, in the process of laying other vault bricks, the vault of the furnace opening bricks is kept stable, and the deflection phenomenon cannot occur.

Description

technical field [0001] The invention relates to the technical field of furnace and kiln construction, in particular to a heat recovery coke oven mouth vault masonry control device and control method. Background technique [0002] Heat recovery or non-recovery coke oven is an environmentally friendly industrial coke oven used to produce coke products such as metallurgical coke and foundry coke, such as Figure 1-2 As shown, the two sides of the furnace body are the main walls 110 of the carbonization chamber, and the top of the carbonization chamber, that is, the top of the furnace, is a vault structure 120 . Bosses 131 are designed on the mouth bricks 130 on both sides of the coke oven, which is beneficial for sealing the carbonization chamber. When the furnace roof brick 130 is built, the bricks with the boss 131 cannot be placed on the arch tire stably, and the center of gravity of the brick is biased to the side with the boss 131, and the furnace mouth brick 130 cannot be...

AI Technical Summary

Problems solved by technology

After the vault masonry 140 is completed, the mortar joints are dry, and it is difficult to adjust the misaligned furnace mouth bricks 130. During the adjustment process, the mortar joints of the bricks become loose, which affects the quality of the masonry, resulting in poor sealing of the carbonization chamber and gas in the furnace. Partial combustion where the furnace door leaks into the air generates high temperature, causing melting and damage to the arc-shaped cast iron protection plate on the upper part of the furnace mouth, burning of the bricks and brick seam mud at the furnace mouth vault, loosening and collapse of the vault, damage to the refractory insulation material, and damage to the furnace door. Body iron melting and other problems

[0004] In view of this, there is an urgent need to invent a heat recovery coke oven furnace mouth vault masonry control device and control method, which can support the bottom surface of the furnace mouth brick 130 while supporting the front of the furnace mouth brick 130 and the side of the furnace to ensure that the furnace mouth When the brick 130 is built vertically, and during the masonry process of other vault bricks 140 following the furnace mouth brick masonry, the furnace mouth brick 130 vault remains stable and will not deviate, resulting in the problem that the carbonization chamber is not tightly sealed

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