An integral prefabrication method for the working layer of a refiring kiln

Abstract

The invention relates to the technical field of kilns, in particular to an overall prefabrication method for the working layer of a refiring kiln. The working layer in the body is formed sequentially from bottom to top, and the specific operation steps are as follows: 1) positioning of lifting frame; 2) positioning of supporting plate; 3) placing formwork; 4) cleaning anchors; 5) pouring; 7) Repeat the above steps until all the working layers in the kiln are completed. Compared with the prior art, the advantages of the present invention are as follows: the respective advantages of the casting material and the ramming material lining are collected, the construction is carried out in sections along the vertical space of the refiring kiln, the number of process gaps is reduced or even the setting of process gaps eliminated, so that The lining of the working layer not only has the advantages of fast pouring and forming, but also has the advantages of strong bonding force and erosion resistance of the ramming material, so as to improve the life of the furnace lining of the refiring kiln, reduce the production cost, and improve the economic benefits of the enterprise.

Description

technical field [0001] The invention relates to the technical field of refractory production, in particular to an integral prefabrication method for the working layer of a refiring kiln. Background technique [0002] Magnesite is a kind of magnesium carbonate mineral. Various magnesium salt products prepared from magnesite are widely used in metallurgy, chemical industry, building materials and other industries. Medium-grade magnesium balls are obtained by adding water to lightly burned powder and then pressing them into balls with a ball pressing machine. The water content is about 25%. The mid-grade magnesium balls are sent to the reburning kiln for reburning through the feeding system. The fuel in the kiln is coal, and the coal and magnesium balls are fed in layers. The medium-grade heavy-burning magnesia kiln is produced by high-pressure blast combustion-supporting layered cultivation. [0003] The furnace lining of the refiring kiln can be made of ramming material or ...

AI Technical Summary

Problems solved by technology

[0004] At present, the furnace lining of refiring kilns is mostly made of molded cast bricks. Because there are gaps between the bricks, if the gaps are not properly reserved, it is easy to cause brick swelling or kiln skin corrosion during the furnace, which affects The service life of the kiln

In addition, the ramming material has high strength and good erosion resistance, but the construction efficiency is low; the overall casting furnace lining has high efficiency but the erosion resistance is slightly insufficient, so a more efficient and high-quality kiln lining production method is urgently needed

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