Lime kiln is a vertical kiln. It is widely used in the process of calcining limestone into lime. The lining structure of the kiln and the requirements for refractory materials are very critical. Because they directly affect the thermal efficiency, production capacity and durability of the kiln.
Refractory Bricks for Lime Shaft Kiln
According to the design, process requirements and needs of different parts of the lime shaft kiln, choose the appropriate refractory material.
- Kiln body: magnesia chrome bricks, high alumina bricks, magnesia alumina spinel brick;
- Kiln wall: high alumina bricks or synthetic spinel bricks;
- Kiln roof: synthetic spinel bricks, magnesia chrome bricks and high alumina bricks with high refractoriness;
- Kiln bottom: magnesia chrome bricks and high alumina bricks.
Requirements for Refractory Bricks in Kiln Lining
Refractory materials used in kiln lining must meet the following requirements:
- High temperature stability: able to withstand long-term high temperature operation without melting or softening;
- Thermal shock stability: the material should not crack or peel off in the case of rapid temperature changes;
- Chemical stability: able to resist chemical erosion caused by raw materials, fuels and production processes;
- Abrasion resistance: the surface is not easy to wear under the action of material flow and friction;
- Thermal insulation performance: especially for permanent layers and thermal insulation layers, they should have good thermal insulation capabilities to reduce heat loss;
- Mechanical strength: sufficient strength to resist structural deformation and external pressure;
- Expansion rate: reasonable linear expansion rate to avoid damage to the lining caused by thermal expansion and contraction.
Zhengzhou Kerui (Group) Refractory Co., Ltd. has always been devoted to the production of high temperature refractory materials. Our products always adhere to the concept of letting you use with confidence, purchase with ease, and repurchase with peace of mind. Kerui ensures that you can purchase refractory bricks of stable and reliable quality. Contact us to purchase cost-effective refractory materials for lime shaft kilns.