Lining structure of lime kiln

By using concave-convex refractory bricks and high-alumina materials in the lime kiln lining, the stability and thermal insulation performance of the lime kiln are enhanced, the problems of loose bricks and heat loss are solved, the service life of the lime kiln is extended and energy consumption is reduced.

CN223400163UActive Publication Date: 2025-09-30GUANGDONG NANFANG SODA ASH IND
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Patent Information

Application Number
CN202422717237.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-07
Publication Date
2025-09-30
Estimated Expiration
2034-11-07

AI Technical Summary

Technical Problem

The existing lime kiln lining structure has problems such as loose contact surfaces between bricks, severe wear, and low thermal insulation efficiency, resulting in a short service life and high energy consumption of the lime kiln.

Method used

The concave-convex refractory brick design is combined with high-alumina refractory cement and perlite casting materials to enhance the stability and thermal insulation performance of the kiln roof lining. Reinforcement parts and kiln protection plates are set in the kiln roof lining to reduce heat loss and material impact.

Benefits of technology

The stability of the lime kiln lining is improved, the service life is extended, the heat loss is reduced, the energy consumption is reduced, and the production efficiency of the lime kiln is improved.

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Abstract

The lime kiln lining structure comprises a kiln top lining and a kiln body lining, and the kiln body lining comprises a first refractory brick layer, a second refractory brick layer, a first heat insulation layer, a second heat insulation layer and a third heat insulation layer which are sequentially arranged from inside to outside. Contact surfaces between two adjacent bricks in the first refractory brick layer are in concave-convex fit and are in sealed connection; the strength of the kiln top lining is higher than that of the first refractory brick layer, the second refractory brick layer, the first heat insulation layer, the second heat insulation layer and the third heat insulation layer, and the kiln top lining extends downwards to form a reinforcing part; kiln protecting plates are arranged on the inner side face of the kiln top lining and the upper side surface of the side, away from the second refractory brick layer, of the first refractory brick layer. The stability of the lime kiln lining can be enhanced, and the service life of the lime kiln can be prolonged; meanwhile, the heat preservation performance of the lime kiln can be enhanced, and heat loss is reduced.
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