Repair method of carbon roasting furnace kiln

Abstract

The invention relates to a repair method for a carbon roasting furnace and provides a sealing composition for repairing cracks of the carbon roasting furnace. The composition mainly comprises high alumina bauxite and microdilatancy fine powder, and furthermore, a low-temperature bonding agent, a dispersion water-reducing agent, explosion-proof fiber and the like are provided. A spaying and mixingmachine is provided and is provided with a mixing and spraying structure. The method comprises the steps that firstly, a spray coating is prepared; secondly, the spray coating is squeezed into the cracks of the carbon roasting furnace; and thirdly, the spray coating is solidified. By the adoption of the repair method, the spray coating can be efficiently squeezed into the cracks through the spraying and mixing machine, and a variety of spray coatings can be adopted and suitable for different parts of the carbon roasting furnace.

Description

technical field [0001] The invention belongs to the field of roasting furnaces, in particular to the field of carbon production. Specifically, the present invention relates to a method for repairing a carbon roaster. The method of the present invention is to repair the carbon roasting furnace on site, so that the carbon roasting furnace can be used for carbon production more permanently. The invention is also applicable to the restoration of other roasting furnaces. Background technique [0002] The ring roaster is the most critical large-scale thermal furnace equipment for the production of carbon products. Carbon is also written as carbon, and carbon production is also written as carbon production. [0003] For a prebaked anode production plant, the infrastructure investment of the ring roaster accounts for 50% to 60% of the total investment of the entire carbon plant, and the advanced design and technology of the roaster have a great impact on product quality, unit inv...

AI Technical Summary

Problems solved by technology

[0011] (1) The side flue wall protrudes outward or is inclined as a whole, which narrows the material box and makes it difficult to install and discharge the furnace

[0012] (2) The middle fire path is sunken inside and outside, narrowing the fire path, and affecting the flow and combustion effect of hot gas

[0013] (3) The cracks in the flue wall are serious, resulting in air leakage and material leakage, affecting product quality, increasing heat loss, and the severely damaged flue wall must be repaired or overhauled

[0021] At present, the depression, deformation, and short service life of the flue wall of the ring-type roaster in my country are the main factors affecting the production capacity of the furnace; cracks in the brick flue wall, air leakage, and large temperature differences between the upper and lower furnaces have a greater impact on product quality; overhaul time Long, harsh construction environment is a difficult problem in production management

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