A kind of masonry method for inner lining of reduction furnace

Abstract

The invention discloses a laying method for a lining of a reduction furnace. Laying of the lining is performed in the reduction furnace from bottom to top. The laying method for the lining comprises the following steps: a: the lower half part of the lining is laid in a staggered-joint manner, expansion joints are reserved in a spray gun area, after half of the lining is laid, an arch form is manufactured, and a support is prepared; and b: the upper half part of the lining is also laid in a staggered-joint manner, a filler is well filled, when laying reaches a lock brick, the lock brick needs to be processed in advance, after the lock brick is completely laid, a steel plate of 2-3 mm in thickness is adopted for strengthening and locking, flat laying is adopted at the broken part of a spherical arch and expansion joints are reserved. By adoption of the laying method, the service life of the lining of the reduction furnace is prolonged, the operation efficiency is improved, the maintenance cost of the reduction furnace is lowered, and high economic benefits are brought for enterprises.

Description

technical field [0001] The invention belongs to the field of lead smelting, and in particular relates to a method for building the inner lining of a reduction furnace. Background technique [0002] At present, the advanced lead smelting process in China is the liquid slag direct reduction lead smelting process, which has the advantages of cleanness, low carbon, and short process flow. The refractory bricks in the body, the masonry structure of the refractory brick lining, and the material selection directly determine the life of the furnace body, the quality of the operating indicators and the operability of production. During the trial production process of this process, there are the following problems: (1) The refractory brick life is short, the furnace lining needs to be overhauled after one year of operation, and the tuyere area of ​​the furnace bottom needs to be repaired after 6 months of operation; (2) The masonry surface of the furnace bottom is stepped Type, there...

AI Technical Summary

Problems solved by technology

During the trial production process of this process, there are the following problems: (1) The refractory brick life is short, the furnace lining needs to be overhauled after one year of operation, and the tuyere area of ​​the furnace bottom needs to be repaired after 6 months of operation; (2) The masonry surface of the furnace bottom is stepped type, there are five planes, and the spray gun in the lower part of the plane has many specifications, and it is difficult to replace

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